* [PATCH v2 01/17] aspeed: Remove fake RTC device on ast2500-evb
2022-06-13 13:25 [PATCH v2 00/17] aspeed: Extend ast2600 I2C model with new mode Cédric Le Goater
@ 2022-06-13 13:25 ` Cédric Le Goater
2022-06-13 13:25 ` [PATCH v2 02/17] test/avocado/machine_aspeed.py: Move OpenBMC tests Cédric Le Goater
` (15 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: Cédric Le Goater @ 2022-06-13 13:25 UTC (permalink / raw)
To: qemu-arm, qemu-devel
Cc: Peter Maydell, Joe Komlodi, Troy Lee, Jamin Lin, Steven Lee,
Klaus Jensen, Peter Delevoryas, Corey Minyard, Jonathan Cameron,
Damien Hedde, Andrew Jeffery, Joel Stanley, Cleber Rosa,
Philippe Mathieu-Daudé, Wainer dos Santos Moschetta,
Beraldo Leal, Cédric Le Goater
The board has no such device. It might have been useful for some tests
in the past, it's not anymore and the same can be achieved on the
command line.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
hw/arm/aspeed.c | 4 ----
1 file changed, 4 deletions(-)
diff --git a/hw/arm/aspeed.c b/hw/arm/aspeed.c
index 98dc185acd9a..c49772e2eb59 100644
--- a/hw/arm/aspeed.c
+++ b/hw/arm/aspeed.c
@@ -519,10 +519,6 @@ static void ast2500_evb_i2c_init(AspeedMachineState *bmc)
/* The AST2500 EVB expects a LM75 but a TMP105 is compatible */
i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 7),
TYPE_TMP105, 0x4d);
-
- /* The AST2500 EVB does not have an RTC. Let's pretend that one is
- * plugged on the I2C bus header */
- i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 11), "ds1338", 0x32);
}
static void ast2600_evb_i2c_init(AspeedMachineState *bmc)
--
2.35.3
^ permalink raw reply related [flat|nested] 18+ messages in thread* [PATCH v2 02/17] test/avocado/machine_aspeed.py: Move OpenBMC tests
2022-06-13 13:25 [PATCH v2 00/17] aspeed: Extend ast2600 I2C model with new mode Cédric Le Goater
2022-06-13 13:25 ` [PATCH v2 01/17] aspeed: Remove fake RTC device on ast2500-evb Cédric Le Goater
@ 2022-06-13 13:25 ` Cédric Le Goater
2022-06-13 13:25 ` [PATCH v2 03/17] test/avocado/machine_aspeed.py: Add tests using buildroot images Cédric Le Goater
` (14 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: Cédric Le Goater @ 2022-06-13 13:25 UTC (permalink / raw)
To: qemu-arm, qemu-devel
Cc: Peter Maydell, Joe Komlodi, Troy Lee, Jamin Lin, Steven Lee,
Klaus Jensen, Peter Delevoryas, Corey Minyard, Jonathan Cameron,
Damien Hedde, Andrew Jeffery, Joel Stanley, Cleber Rosa,
Philippe Mathieu-Daudé, Wainer dos Santos Moschetta,
Beraldo Leal, Cédric Le Goater
It's easier to run. Keep test_arm_ast2600_debian() under the
boot_linux_console.py file because it requires the extract_from_deb()
helper. We could remove it when we have tests for the AST2600.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
tests/avocado/boot_linux_console.py | 43 -------------------------
tests/avocado/machine_aspeed.py | 50 +++++++++++++++++++++++++++++
2 files changed, 50 insertions(+), 43 deletions(-)
diff --git a/tests/avocado/boot_linux_console.py b/tests/avocado/boot_linux_console.py
index 45a2ceda2227..6b1533c17c8b 100644
--- a/tests/avocado/boot_linux_console.py
+++ b/tests/avocado/boot_linux_console.py
@@ -1043,49 +1043,6 @@ def test_arm_vexpressa9(self):
self.vm.add_args('-dtb', self.workdir + '/day16/vexpress-v2p-ca9.dtb')
self.do_test_advcal_2018('16', tar_hash, 'winter.zImage')
- def test_arm_ast2400_palmetto_openbmc_v2_9_0(self):
- """
- :avocado: tags=arch:arm
- :avocado: tags=machine:palmetto-bmc
- """
-
- image_url = ('https://github.com/openbmc/openbmc/releases/download/2.9.0/'
- 'obmc-phosphor-image-palmetto.static.mtd')
- image_hash = ('3e13bbbc28e424865dc42f35ad672b10f2e82cdb11846bb28fa625b48beafd0d')
- image_path = self.fetch_asset(image_url, asset_hash=image_hash,
- algorithm='sha256')
-
- self.do_test_arm_aspeed(image_path)
-
- def test_arm_ast2500_romulus_openbmc_v2_9_0(self):
- """
- :avocado: tags=arch:arm
- :avocado: tags=machine:romulus-bmc
- """
-
- image_url = ('https://github.com/openbmc/openbmc/releases/download/2.9.0/'
- 'obmc-phosphor-image-romulus.static.mtd')
- image_hash = ('820341076803f1955bc31e647a512c79f9add4f5233d0697678bab4604c7bb25')
- image_path = self.fetch_asset(image_url, asset_hash=image_hash,
- algorithm='sha256')
-
- self.do_test_arm_aspeed(image_path)
-
- def do_test_arm_aspeed(self, image):
- self.vm.set_console()
- self.vm.add_args('-drive', 'file=' + image + ',if=mtd,format=raw',
- '-net', 'nic')
- self.vm.launch()
-
- self.wait_for_console_pattern("U-Boot 2016.07")
- self.wait_for_console_pattern("## Loading kernel from FIT Image at 20080000")
- self.wait_for_console_pattern("Starting kernel ...")
- self.wait_for_console_pattern("Booting Linux on physical CPU 0x0")
- self.wait_for_console_pattern(
- "aspeed-smc 1e620000.spi: read control register: 203b0641")
- self.wait_for_console_pattern("ftgmac100 1e660000.ethernet eth0: irq ")
- self.wait_for_console_pattern("systemd[1]: Set hostname to")
-
def test_arm_ast2600_debian(self):
"""
:avocado: tags=arch:arm
diff --git a/tests/avocado/machine_aspeed.py b/tests/avocado/machine_aspeed.py
index 33090af19940..89bfad307661 100644
--- a/tests/avocado/machine_aspeed.py
+++ b/tests/avocado/machine_aspeed.py
@@ -34,3 +34,53 @@ def test_ast1030_zephyros(self):
wait_for_console_pattern(self, "Booting Zephyr OS")
exec_command_and_wait_for_pattern(self, "help",
"Available commands")
+
+class AST2x00Machine(QemuSystemTest):
+
+ def wait_for_console_pattern(self, success_message, vm=None):
+ wait_for_console_pattern(self, success_message,
+ failure_message='Kernel panic - not syncing',
+ vm=vm)
+
+ def do_test_arm_aspeed(self, image):
+ self.vm.set_console()
+ self.vm.add_args('-drive', 'file=' + image + ',if=mtd,format=raw',
+ '-net', 'nic')
+ self.vm.launch()
+
+ self.wait_for_console_pattern("U-Boot 2016.07")
+ self.wait_for_console_pattern("## Loading kernel from FIT Image at 20080000")
+ self.wait_for_console_pattern("Starting kernel ...")
+ self.wait_for_console_pattern("Booting Linux on physical CPU 0x0")
+ wait_for_console_pattern(self,
+ "aspeed-smc 1e620000.spi: read control register: 203b0641")
+ self.wait_for_console_pattern("ftgmac100 1e660000.ethernet eth0: irq ")
+ self.wait_for_console_pattern("systemd[1]: Set hostname to")
+
+ def test_arm_ast2400_palmetto_openbmc_v2_9_0(self):
+ """
+ :avocado: tags=arch:arm
+ :avocado: tags=machine:palmetto-bmc
+ """
+
+ image_url = ('https://github.com/openbmc/openbmc/releases/download/2.9.0/'
+ 'obmc-phosphor-image-palmetto.static.mtd')
+ image_hash = ('3e13bbbc28e424865dc42f35ad672b10f2e82cdb11846bb28fa625b48beafd0d')
+ image_path = self.fetch_asset(image_url, asset_hash=image_hash,
+ algorithm='sha256')
+
+ self.do_test_arm_aspeed(image_path)
+
+ def test_arm_ast2500_romulus_openbmc_v2_9_0(self):
+ """
+ :avocado: tags=arch:arm
+ :avocado: tags=machine:romulus-bmc
+ """
+
+ image_url = ('https://github.com/openbmc/openbmc/releases/download/2.9.0/'
+ 'obmc-phosphor-image-romulus.static.mtd')
+ image_hash = ('820341076803f1955bc31e647a512c79f9add4f5233d0697678bab4604c7bb25')
+ image_path = self.fetch_asset(image_url, asset_hash=image_hash,
+ algorithm='sha256')
+
+ self.do_test_arm_aspeed(image_path)
--
2.35.3
^ permalink raw reply related [flat|nested] 18+ messages in thread* [PATCH v2 03/17] test/avocado/machine_aspeed.py: Add tests using buildroot images
2022-06-13 13:25 [PATCH v2 00/17] aspeed: Extend ast2600 I2C model with new mode Cédric Le Goater
2022-06-13 13:25 ` [PATCH v2 01/17] aspeed: Remove fake RTC device on ast2500-evb Cédric Le Goater
2022-06-13 13:25 ` [PATCH v2 02/17] test/avocado/machine_aspeed.py: Move OpenBMC tests Cédric Le Goater
@ 2022-06-13 13:25 ` Cédric Le Goater
2022-06-13 13:25 ` [PATCH v2 04/17] test/avocado/machine_aspeed.py: Add I2C tests to ast2500-evb Cédric Le Goater
` (13 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: Cédric Le Goater @ 2022-06-13 13:25 UTC (permalink / raw)
To: qemu-arm, qemu-devel
Cc: Peter Maydell, Joe Komlodi, Troy Lee, Jamin Lin, Steven Lee,
Klaus Jensen, Peter Delevoryas, Corey Minyard, Jonathan Cameron,
Damien Hedde, Andrew Jeffery, Joel Stanley, Cleber Rosa,
Philippe Mathieu-Daudé, Wainer dos Santos Moschetta,
Beraldo Leal, Cédric Le Goater
Buildroot images are smaller than the OpenBMC images and faster to
run. Built from source using :
http://patchwork.ozlabs.org/project/buildroot/list/?series=303465
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
tests/avocado/machine_aspeed.py | 52 +++++++++++++++++++++++++++++++++
1 file changed, 52 insertions(+)
diff --git a/tests/avocado/machine_aspeed.py b/tests/avocado/machine_aspeed.py
index 89bfad307661..31a0fb6cd865 100644
--- a/tests/avocado/machine_aspeed.py
+++ b/tests/avocado/machine_aspeed.py
@@ -5,8 +5,11 @@
# This work is licensed under the terms of the GNU GPL, version 2 or
# later. See the COPYING file in the top-level directory.
+import time
+
from avocado_qemu import QemuSystemTest
from avocado_qemu import wait_for_console_pattern
+from avocado_qemu import exec_command
from avocado_qemu import exec_command_and_wait_for_pattern
from avocado.utils import archive
@@ -84,3 +87,52 @@ def test_arm_ast2500_romulus_openbmc_v2_9_0(self):
algorithm='sha256')
self.do_test_arm_aspeed(image_path)
+
+ def do_test_arm_aspeed_buidroot_start(self, image, cpu_id):
+ self.vm.set_console()
+ self.vm.add_args('-drive', 'file=' + image + ',if=mtd,format=raw',
+ '-net', 'nic', '-net', 'user')
+ self.vm.launch()
+
+ self.wait_for_console_pattern('U-Boot 2019.04')
+ self.wait_for_console_pattern('## Loading kernel from FIT Image')
+ self.wait_for_console_pattern('Starting kernel ...')
+ self.wait_for_console_pattern('Booting Linux on physical CPU ' + cpu_id)
+ self.wait_for_console_pattern('lease of 10.0.2.15')
+ self.wait_for_console_pattern('Aspeed EVB')
+ exec_command(self, 'root')
+ time.sleep(0.1)
+
+ def do_test_arm_aspeed_buidroot_poweroff(self):
+ exec_command_and_wait_for_pattern(self, 'poweroff',
+ 'reboot: System halted');
+
+ def test_arm_ast2500_evb_builroot(self):
+ """
+ :avocado: tags=arch:arm
+ :avocado: tags=machine:ast2500-evb
+ """
+
+ image_url = ('https://github.com/legoater/qemu-aspeed-boot/raw/master/'
+ 'images/ast2500-evb/buildroot-2022.05/flash.img')
+ image_hash = ('549db6e9d8cdaf4367af21c36385a68bb465779c18b5e37094fc7343decccd3f')
+ image_path = self.fetch_asset(image_url, asset_hash=image_hash,
+ algorithm='sha256')
+
+ self.do_test_arm_aspeed_buidroot_start(image_path, '0x0')
+ self.do_test_arm_aspeed_buidroot_poweroff()
+
+ def test_arm_ast2600_evb_builroot(self):
+ """
+ :avocado: tags=arch:arm
+ :avocado: tags=machine:ast2600-evb
+ """
+
+ image_url = ('https://github.com/legoater/qemu-aspeed-boot/raw/master/'
+ 'images/ast2600-evb/buildroot-2022.05/flash.img')
+ image_hash = ('6cc9e7d128fd4fa1fd01c883af67593cae8072c3239a0b8b6ace857f3538a92d')
+ image_path = self.fetch_asset(image_url, asset_hash=image_hash,
+ algorithm='sha256')
+
+ self.do_test_arm_aspeed_buidroot_start(image_path, '0xf00')
+ self.do_test_arm_aspeed_buidroot_poweroff()
--
2.35.3
^ permalink raw reply related [flat|nested] 18+ messages in thread* [PATCH v2 04/17] test/avocado/machine_aspeed.py: Add I2C tests to ast2500-evb
2022-06-13 13:25 [PATCH v2 00/17] aspeed: Extend ast2600 I2C model with new mode Cédric Le Goater
` (2 preceding siblings ...)
2022-06-13 13:25 ` [PATCH v2 03/17] test/avocado/machine_aspeed.py: Add tests using buildroot images Cédric Le Goater
@ 2022-06-13 13:25 ` Cédric Le Goater
2022-06-13 13:25 ` [PATCH v2 05/17] test/avocado/machine_aspeed.py: Add I2C tests to ast2600-evb Cédric Le Goater
` (12 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: Cédric Le Goater @ 2022-06-13 13:25 UTC (permalink / raw)
To: qemu-arm, qemu-devel
Cc: Peter Maydell, Joe Komlodi, Troy Lee, Jamin Lin, Steven Lee,
Klaus Jensen, Peter Delevoryas, Corey Minyard, Jonathan Cameron,
Damien Hedde, Andrew Jeffery, Joel Stanley, Cleber Rosa,
Philippe Mathieu-Daudé, Wainer dos Santos Moschetta,
Beraldo Leal, Cédric Le Goater
Create a named I2C temperature sensor device on the command line,
instantiate device from Linux since it is not part of the device tree,
and check the temperature is correctly reported under sysfs.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
tests/avocado/machine_aspeed.py | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/tests/avocado/machine_aspeed.py b/tests/avocado/machine_aspeed.py
index 31a0fb6cd865..4d2766e1d44d 100644
--- a/tests/avocado/machine_aspeed.py
+++ b/tests/avocado/machine_aspeed.py
@@ -119,7 +119,20 @@ def test_arm_ast2500_evb_builroot(self):
image_path = self.fetch_asset(image_url, asset_hash=image_hash,
algorithm='sha256')
+ self.vm.add_args('-device',
+ 'tmp105,bus=aspeed.i2c.bus.3,address=0x4d,id=tmp-test');
self.do_test_arm_aspeed_buidroot_start(image_path, '0x0')
+
+ exec_command_and_wait_for_pattern(self,
+ 'echo lm75 0x4d > /sys/class/i2c-dev/i2c-3/device/new_device',
+ 'i2c i2c-3: new_device: Instantiated device lm75 at 0x4d');
+ exec_command_and_wait_for_pattern(self,
+ 'cat /sys/class/hwmon/hwmon1/temp1_input', '0')
+ self.vm.command('qom-set', path='/machine/peripheral/tmp-test',
+ property='temperature', value=18000);
+ exec_command_and_wait_for_pattern(self,
+ 'cat /sys/class/hwmon/hwmon1/temp1_input', '18000')
+
self.do_test_arm_aspeed_buidroot_poweroff()
def test_arm_ast2600_evb_builroot(self):
--
2.35.3
^ permalink raw reply related [flat|nested] 18+ messages in thread* [PATCH v2 05/17] test/avocado/machine_aspeed.py: Add I2C tests to ast2600-evb
2022-06-13 13:25 [PATCH v2 00/17] aspeed: Extend ast2600 I2C model with new mode Cédric Le Goater
` (3 preceding siblings ...)
2022-06-13 13:25 ` [PATCH v2 04/17] test/avocado/machine_aspeed.py: Add I2C tests to ast2500-evb Cédric Le Goater
@ 2022-06-13 13:25 ` Cédric Le Goater
2022-06-13 13:25 ` [PATCH v2 06/17] test/avocado/machine_aspeed.py: Add an I2C RTC test Cédric Le Goater
` (11 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: Cédric Le Goater @ 2022-06-13 13:25 UTC (permalink / raw)
To: qemu-arm, qemu-devel
Cc: Peter Maydell, Joe Komlodi, Troy Lee, Jamin Lin, Steven Lee,
Klaus Jensen, Peter Delevoryas, Corey Minyard, Jonathan Cameron,
Damien Hedde, Andrew Jeffery, Joel Stanley, Cleber Rosa,
Philippe Mathieu-Daudé, Wainer dos Santos Moschetta,
Beraldo Leal, Cédric Le Goater
Create a named I2C temperature sensor device on the command line,
instantiate device from Linux since it is not part of the device tree,
and check the temperature is correctly reported under sysfs.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
tests/avocado/machine_aspeed.py | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/tests/avocado/machine_aspeed.py b/tests/avocado/machine_aspeed.py
index 4d2766e1d44d..0a1ceec13eb1 100644
--- a/tests/avocado/machine_aspeed.py
+++ b/tests/avocado/machine_aspeed.py
@@ -147,5 +147,18 @@ def test_arm_ast2600_evb_builroot(self):
image_path = self.fetch_asset(image_url, asset_hash=image_hash,
algorithm='sha256')
+ self.vm.add_args('-device',
+ 'tmp105,bus=aspeed.i2c.bus.3,address=0x4d,id=tmp-test');
self.do_test_arm_aspeed_buidroot_start(image_path, '0xf00')
+
+ exec_command_and_wait_for_pattern(self,
+ 'echo lm75 0x4d > /sys/class/i2c-dev/i2c-3/device/new_device',
+ 'i2c i2c-3: new_device: Instantiated device lm75 at 0x4d');
+ exec_command_and_wait_for_pattern(self,
+ 'cat /sys/class/hwmon/hwmon0/temp1_input', '0')
+ self.vm.command('qom-set', path='/machine/peripheral/tmp-test',
+ property='temperature', value=18000);
+ exec_command_and_wait_for_pattern(self,
+ 'cat /sys/class/hwmon/hwmon0/temp1_input', '18000')
+
self.do_test_arm_aspeed_buidroot_poweroff()
--
2.35.3
^ permalink raw reply related [flat|nested] 18+ messages in thread* [PATCH v2 06/17] test/avocado/machine_aspeed.py: Add an I2C RTC test
2022-06-13 13:25 [PATCH v2 00/17] aspeed: Extend ast2600 I2C model with new mode Cédric Le Goater
` (4 preceding siblings ...)
2022-06-13 13:25 ` [PATCH v2 05/17] test/avocado/machine_aspeed.py: Add I2C tests to ast2600-evb Cédric Le Goater
@ 2022-06-13 13:25 ` Cédric Le Goater
2022-06-13 13:25 ` [PATCH v2 07/17] hw/registerfields: Add shared fields macros Cédric Le Goater
` (10 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: Cédric Le Goater @ 2022-06-13 13:25 UTC (permalink / raw)
To: qemu-arm, qemu-devel
Cc: Peter Maydell, Joe Komlodi, Troy Lee, Jamin Lin, Steven Lee,
Klaus Jensen, Peter Delevoryas, Corey Minyard, Jonathan Cameron,
Damien Hedde, Andrew Jeffery, Joel Stanley, Cleber Rosa,
Philippe Mathieu-Daudé, Wainer dos Santos Moschetta,
Beraldo Leal, Cédric Le Goater
Add an RTC device and check that the output of the hwclock command
matches the current year.
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
tests/avocado/machine_aspeed.py | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/tests/avocado/machine_aspeed.py b/tests/avocado/machine_aspeed.py
index 0a1ceec13eb1..3b8f784a57b6 100644
--- a/tests/avocado/machine_aspeed.py
+++ b/tests/avocado/machine_aspeed.py
@@ -149,6 +149,8 @@ def test_arm_ast2600_evb_builroot(self):
self.vm.add_args('-device',
'tmp105,bus=aspeed.i2c.bus.3,address=0x4d,id=tmp-test');
+ self.vm.add_args('-device',
+ 'ds1338,bus=aspeed.i2c.bus.3,address=0x32');
self.do_test_arm_aspeed_buidroot_start(image_path, '0xf00')
exec_command_and_wait_for_pattern(self,
@@ -161,4 +163,10 @@ def test_arm_ast2600_evb_builroot(self):
exec_command_and_wait_for_pattern(self,
'cat /sys/class/hwmon/hwmon0/temp1_input', '18000')
+ exec_command_and_wait_for_pattern(self,
+ 'echo ds1307 0x32 > /sys/class/i2c-dev/i2c-3/device/new_device',
+ 'i2c i2c-3: new_device: Instantiated device ds1307 at 0x32');
+ year = time.strftime("%Y")
+ exec_command_and_wait_for_pattern(self, 'hwclock -f /dev/rtc1', year);
+
self.do_test_arm_aspeed_buidroot_poweroff()
--
2.35.3
^ permalink raw reply related [flat|nested] 18+ messages in thread* [PATCH v2 07/17] hw/registerfields: Add shared fields macros
2022-06-13 13:25 [PATCH v2 00/17] aspeed: Extend ast2600 I2C model with new mode Cédric Le Goater
` (5 preceding siblings ...)
2022-06-13 13:25 ` [PATCH v2 06/17] test/avocado/machine_aspeed.py: Add an I2C RTC test Cédric Le Goater
@ 2022-06-13 13:25 ` Cédric Le Goater
2022-06-13 13:25 ` [PATCH v2 08/17] aspeed: i2c: Migrate to registerfields API Cédric Le Goater
` (9 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: Cédric Le Goater @ 2022-06-13 13:25 UTC (permalink / raw)
To: qemu-arm, qemu-devel
Cc: Peter Maydell, Joe Komlodi, Troy Lee, Jamin Lin, Steven Lee,
Klaus Jensen, Peter Delevoryas, Corey Minyard, Jonathan Cameron,
Damien Hedde, Andrew Jeffery, Joel Stanley, Cleber Rosa,
Philippe Mathieu-Daudé, Wainer dos Santos Moschetta,
Beraldo Leal, Cédric Le Goater
From: Joe Komlodi <komlodi@google.com>
Occasionally a peripheral will have different operating modes, where the
MMIO layout changes, but some of the register fields have the same offsets
and behaviors.
To help support this, we add SHARED_FIELD_XX macros that create SHIFT,
LENGTH, and MASK macros for the fields that are shared across registers,
and accessors for these fields.
An example use may look as follows:
There is a peripheral with registers REG_MODE1 and REG_MODE2 at
different addreses, and both have a field FIELD1 initialized by
SHARED_FIELD().
Depending on what mode the peripheral is operating in, the user could
extract FIELD1 via
SHARED_ARRAY_FIELD_EX32(s->regs, R_REG_MODE1, FIELD1)
or
SHARED_ARRAY_FIELD_EX32(s->regs, R_REG_MODE2, FIELD1)
Signed-off-by: Joe Komlodi <komlodi@google.com>
Change-Id: Id3dc53e7d2f8741c95697cbae69a81bb699fa3cb
Message-Id: <20220331043248.2237838-2-komlodi@google.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
include/hw/registerfields.h | 70 +++++++++++++++++++++++++++++++++++++
1 file changed, 70 insertions(+)
diff --git a/include/hw/registerfields.h b/include/hw/registerfields.h
index 3a88e135d025..1330ca77de61 100644
--- a/include/hw/registerfields.h
+++ b/include/hw/registerfields.h
@@ -154,4 +154,74 @@
#define ARRAY_FIELD_DP64(regs, reg, field, val) \
(regs)[R_ ## reg] = FIELD_DP64((regs)[R_ ## reg], reg, field, val);
+
+/*
+ * These macros can be used for defining and extracting fields that have the
+ * same bit position across multiple registers.
+ */
+
+/* Define shared SHIFT, LENGTH, and MASK constants */
+#define SHARED_FIELD(name, shift, length) \
+ enum { name ## _ ## SHIFT = (shift)}; \
+ enum { name ## _ ## LENGTH = (length)}; \
+ enum { name ## _ ## MASK = MAKE_64BIT_MASK(shift, length)};
+
+/* Extract a shared field */
+#define SHARED_FIELD_EX8(storage, field) \
+ extract8((storage), field ## _SHIFT, field ## _LENGTH)
+
+#define SHARED_FIELD_EX16(storage, field) \
+ extract16((storage), field ## _SHIFT, field ## _LENGTH)
+
+#define SHARED_FIELD_EX32(storage, field) \
+ extract32((storage), field ## _SHIFT, field ## _LENGTH)
+
+#define SHARED_FIELD_EX64(storage, field) \
+ extract64((storage), field ## _SHIFT, field ## _LENGTH)
+
+/* Extract a shared field from a register array */
+#define SHARED_ARRAY_FIELD_EX32(regs, offset, field) \
+ SHARED_FIELD_EX32((regs)[(offset)], field)
+#define SHARED_ARRAY_FIELD_EX64(regs, offset, field) \
+ SHARED_FIELD_EX64((regs)[(offset)], field)
+
+/* Deposit a shared field */
+#define SHARED_FIELD_DP8(storage, field, val) ({ \
+ struct { \
+ unsigned int v:field ## _LENGTH; \
+ } _v = { .v = val }; \
+ uint8_t _d; \
+ _d = deposit32((storage), field ## _SHIFT, field ## _LENGTH, _v.v); \
+ _d; })
+
+#define SHARED_FIELD_DP16(storage, field, val) ({ \
+ struct { \
+ unsigned int v:field ## _LENGTH; \
+ } _v = { .v = val }; \
+ uint16_t _d; \
+ _d = deposit32((storage), field ## _SHIFT, field ## _LENGTH, _v.v); \
+ _d; })
+
+#define SHARED_FIELD_DP32(storage, field, val) ({ \
+ struct { \
+ unsigned int v:field ## _LENGTH; \
+ } _v = { .v = val }; \
+ uint32_t _d; \
+ _d = deposit32((storage), field ## _SHIFT, field ## _LENGTH, _v.v); \
+ _d; })
+
+#define SHARED_FIELD_DP64(storage, field, val) ({ \
+ struct { \
+ uint64_t v:field ## _LENGTH; \
+ } _v = { .v = val }; \
+ uint64_t _d; \
+ _d = deposit64((storage), field ## _SHIFT, field ## _LENGTH, _v.v); \
+ _d; })
+
+/* Deposit a shared field to a register array */
+#define SHARED_ARRAY_FIELD_DP32(regs, offset, field, val) \
+ (regs)[(offset)] = SHARED_FIELD_DP32((regs)[(offset)], field, val);
+#define SHARED_ARRAY_FIELD_DP64(regs, offset, field, val) \
+ (regs)[(offset)] = SHARED_FIELD_DP64((regs)[(offset)], field, val);
+
#endif
--
2.35.3
^ permalink raw reply related [flat|nested] 18+ messages in thread* [PATCH v2 08/17] aspeed: i2c: Migrate to registerfields API
2022-06-13 13:25 [PATCH v2 00/17] aspeed: Extend ast2600 I2C model with new mode Cédric Le Goater
` (6 preceding siblings ...)
2022-06-13 13:25 ` [PATCH v2 07/17] hw/registerfields: Add shared fields macros Cédric Le Goater
@ 2022-06-13 13:25 ` Cédric Le Goater
2022-06-13 13:25 ` [PATCH v2 09/17] aspeed: i2c: Use reg array instead of individual vars Cédric Le Goater
` (8 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: Cédric Le Goater @ 2022-06-13 13:25 UTC (permalink / raw)
To: qemu-arm, qemu-devel
Cc: Peter Maydell, Joe Komlodi, Troy Lee, Jamin Lin, Steven Lee,
Klaus Jensen, Peter Delevoryas, Corey Minyard, Jonathan Cameron,
Damien Hedde, Andrew Jeffery, Joel Stanley, Cleber Rosa,
Philippe Mathieu-Daudé, Wainer dos Santos Moschetta,
Beraldo Leal, Cédric Le Goater
From: Joe Komlodi <komlodi@google.com>
This cleans up some of the field accessing, setting, and clearing
bitwise operations, and wraps them in macros instead.
Signed-off-by: Joe Komlodi <komlodi@google.com>
Change-Id: I33018d6325fa04376e7c29dc4a49ab389a8e333a
Message-Id: <20220331043248.2237838-4-komlodi@google.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
hw/i2c/aspeed_i2c.c | 393 ++++++++++++++++++++++----------------------
1 file changed, 196 insertions(+), 197 deletions(-)
diff --git a/hw/i2c/aspeed_i2c.c b/hw/i2c/aspeed_i2c.c
index 03a4f5a91010..63d35f874c99 100644
--- a/hw/i2c/aspeed_i2c.c
+++ b/hw/i2c/aspeed_i2c.c
@@ -28,70 +28,61 @@
#include "hw/i2c/aspeed_i2c.h"
#include "hw/irq.h"
#include "hw/qdev-properties.h"
+#include "hw/registerfields.h"
#include "trace.h"
/* I2C Global Register */
-
-#define I2C_CTRL_STATUS 0x00 /* Device Interrupt Status */
-#define I2C_CTRL_ASSIGN 0x08 /* Device Interrupt Target
- Assignment */
-#define I2C_CTRL_GLOBAL 0x0C /* Global Control Register */
-#define I2C_CTRL_SRAM_EN BIT(0)
+REG32(I2C_CTRL_STATUS, 0x0) /* Device Interrupt Status */
+REG32(I2C_CTRL_ASSIGN, 0x8) /* Device Interrupt Target Assignment */
+REG32(I2C_CTRL_GLOBAL, 0xC) /* Global Control Register */
+ FIELD(I2C_CTRL_GLOBAL, SRAM_EN, 0, 1)
/* I2C Device (Bus) Register */
-
-#define I2CD_FUN_CTRL_REG 0x00 /* I2CD Function Control */
-#define I2CD_POOL_PAGE_SEL(x) (((x) >> 20) & 0x7) /* AST2400 */
-#define I2CD_M_SDA_LOCK_EN (0x1 << 16)
-#define I2CD_MULTI_MASTER_DIS (0x1 << 15)
-#define I2CD_M_SCL_DRIVE_EN (0x1 << 14)
-#define I2CD_MSB_STS (0x1 << 9)
-#define I2CD_SDA_DRIVE_1T_EN (0x1 << 8)
-#define I2CD_M_SDA_DRIVE_1T_EN (0x1 << 7)
-#define I2CD_M_HIGH_SPEED_EN (0x1 << 6)
-#define I2CD_DEF_ADDR_EN (0x1 << 5)
-#define I2CD_DEF_ALERT_EN (0x1 << 4)
-#define I2CD_DEF_ARP_EN (0x1 << 3)
-#define I2CD_DEF_GCALL_EN (0x1 << 2)
-#define I2CD_SLAVE_EN (0x1 << 1)
-#define I2CD_MASTER_EN (0x1)
-
-#define I2CD_AC_TIMING_REG1 0x04 /* Clock and AC Timing Control #1 */
-#define I2CD_AC_TIMING_REG2 0x08 /* Clock and AC Timing Control #1 */
-#define I2CD_INTR_CTRL_REG 0x0c /* I2CD Interrupt Control */
-#define I2CD_INTR_STS_REG 0x10 /* I2CD Interrupt Status */
-
-#define I2CD_INTR_SLAVE_ADDR_MATCH (0x1 << 31) /* 0: addr1 1: addr2 */
-#define I2CD_INTR_SLAVE_ADDR_RX_PENDING (0x1 << 30)
-/* bits[19-16] Reserved */
-
-/* All bits below are cleared by writing 1 */
-#define I2CD_INTR_SLAVE_INACTIVE_TIMEOUT (0x1 << 15)
-#define I2CD_INTR_SDA_DL_TIMEOUT (0x1 << 14)
-#define I2CD_INTR_BUS_RECOVER_DONE (0x1 << 13)
-#define I2CD_INTR_SMBUS_ALERT (0x1 << 12) /* Bus [0-3] only */
-#define I2CD_INTR_SMBUS_ARP_ADDR (0x1 << 11) /* Removed */
-#define I2CD_INTR_SMBUS_DEV_ALERT_ADDR (0x1 << 10) /* Removed */
-#define I2CD_INTR_SMBUS_DEF_ADDR (0x1 << 9) /* Removed */
-#define I2CD_INTR_GCALL_ADDR (0x1 << 8) /* Removed */
-#define I2CD_INTR_SLAVE_ADDR_RX_MATCH (0x1 << 7) /* use RX_DONE */
-#define I2CD_INTR_SCL_TIMEOUT (0x1 << 6)
-#define I2CD_INTR_ABNORMAL (0x1 << 5)
-#define I2CD_INTR_NORMAL_STOP (0x1 << 4)
-#define I2CD_INTR_ARBIT_LOSS (0x1 << 3)
-#define I2CD_INTR_RX_DONE (0x1 << 2)
-#define I2CD_INTR_TX_NAK (0x1 << 1)
-#define I2CD_INTR_TX_ACK (0x1 << 0)
-
-#define I2CD_CMD_REG 0x14 /* I2CD Command/Status */
-#define I2CD_SDA_OE (0x1 << 28)
-#define I2CD_SDA_O (0x1 << 27)
-#define I2CD_SCL_OE (0x1 << 26)
-#define I2CD_SCL_O (0x1 << 25)
-#define I2CD_TX_TIMING (0x1 << 24)
-#define I2CD_TX_STATUS (0x1 << 23)
-
-#define I2CD_TX_STATE_SHIFT 19 /* Tx State Machine */
+REG32(I2CD_FUN_CTRL, 0x0) /* I2CD Function Control */
+ FIELD(I2CD_FUN_CTRL, POOL_PAGE_SEL, 20, 3) /* AST2400 */
+ FIELD(I2CD_FUN_CTRL, M_SDA_LOCK_EN, 16, 1)
+ FIELD(I2CD_FUN_CTRL, MULTI_MASTER_DIS, 15, 1)
+ FIELD(I2CD_FUN_CTRL, M_SCL_DRIVE_EN, 14, 1)
+ FIELD(I2CD_FUN_CTRL, MSB_STS, 9, 1)
+ FIELD(I2CD_FUN_CTRL, SDA_DRIVE_IT_EN, 8, 1)
+ FIELD(I2CD_FUN_CTRL, M_SDA_DRIVE_IT_EN, 7, 1)
+ FIELD(I2CD_FUN_CTRL, M_HIGH_SPEED_EN, 6, 1)
+ FIELD(I2CD_FUN_CTRL, DEF_ADDR_EN, 5, 1)
+ FIELD(I2CD_FUN_CTRL, DEF_ALERT_EN, 4, 1)
+ FIELD(I2CD_FUN_CTRL, DEF_ARP_EN, 3, 1)
+ FIELD(I2CD_FUN_CTRL, DEF_GCALL_EN, 2, 1)
+ FIELD(I2CD_FUN_CTRL, SLAVE_EN, 1, 1)
+ FIELD(I2CD_FUN_CTRL, MASTER_EN, 0, 1)
+REG32(I2CD_AC_TIMING1, 0x04) /* Clock and AC Timing Control #1 */
+REG32(I2CD_AC_TIMING2, 0x08) /* Clock and AC Timing Control #2 */
+REG32(I2CD_INTR_CTRL, 0x0C) /* I2CD Interrupt Control */
+REG32(I2CD_INTR_STS, 0x10) /* I2CD Interrupt Status */
+ FIELD(I2CD_INTR_STS, SLAVE_ADDR_MATCH, 31, 1) /* 0: addr1 1: addr2 */
+ FIELD(I2CD_INTR_STS, SLAVE_ADDR_RX_PENDING, 29, 1)
+ FIELD(I2CD_INTR_STS, SLAVE_INACTIVE_TIMEOUT, 15, 1)
+ FIELD(I2CD_INTR_STS, SDA_DL_TIMEOUT, 14, 1)
+ FIELD(I2CD_INTR_STS, BUS_RECOVER_DONE, 13, 1)
+ FIELD(I2CD_INTR_STS, SMBUS_ALERT, 12, 1) /* Bus [0-3] only */
+ FIELD(I2CD_INTR_STS, SMBUS_ARP_ADDR, 11, 1) /* Removed */
+ FIELD(I2CD_INTR_STS, SMBUS_DEV_ALERT_ADDR, 10, 1) /* Removed */
+ FIELD(I2CD_INTR_STS, SMBUS_DEF_ADDR, 9, 1) /* Removed */
+ FIELD(I2CD_INTR_STS, GCALL_ADDR, 8, 1) /* Removed */
+ FIELD(I2CD_INTR_STS, SLAVE_ADDR_RX_MATCH, 7, 1) /* use RX_DONE */
+ FIELD(I2CD_INTR_STS, SCL_TIMEOUT, 6, 1)
+ FIELD(I2CD_INTR_STS, ABNORMAL, 5, 1)
+ FIELD(I2CD_INTR_STS, NORMAL_STOP, 4, 1)
+ FIELD(I2CD_INTR_STS, ARBIT_LOSS, 3, 1)
+ FIELD(I2CD_INTR_STS, RX_DONE, 2, 1)
+ FIELD(I2CD_INTR_STS, TX_NAK, 1, 1)
+ FIELD(I2CD_INTR_STS, TX_ACK, 0, 1)
+REG32(I2CD_CMD, 0x14) /* I2CD Command/Status */
+ FIELD(I2CD_CMD, SDA_OE, 28, 1)
+ FIELD(I2CD_CMD, SDA_O, 27, 1)
+ FIELD(I2CD_CMD, SCL_OE, 26, 1)
+ FIELD(I2CD_CMD, SCL_O, 25, 1)
+ FIELD(I2CD_CMD, TX_TIMING, 23, 2)
+ FIELD(I2CD_CMD, TX_STATE, 19, 4)
+/* Tx State Machine */
#define I2CD_TX_STATE_MASK 0xf
#define I2CD_IDLE 0x0
#define I2CD_MACTIVE 0x8
@@ -108,51 +99,47 @@
#define I2CD_STXD 0x6
#define I2CD_SRXACK 0x7
#define I2CD_RECOVER 0x3
-
-#define I2CD_SCL_LINE_STS (0x1 << 18)
-#define I2CD_SDA_LINE_STS (0x1 << 17)
-#define I2CD_BUS_BUSY_STS (0x1 << 16)
-#define I2CD_SDA_OE_OUT_DIR (0x1 << 15)
-#define I2CD_SDA_O_OUT_DIR (0x1 << 14)
-#define I2CD_SCL_OE_OUT_DIR (0x1 << 13)
-#define I2CD_SCL_O_OUT_DIR (0x1 << 12)
-#define I2CD_BUS_RECOVER_CMD_EN (0x1 << 11)
-#define I2CD_S_ALT_EN (0x1 << 10)
-
-/* Command Bit */
-#define I2CD_RX_DMA_ENABLE (0x1 << 9)
-#define I2CD_TX_DMA_ENABLE (0x1 << 8)
-#define I2CD_RX_BUFF_ENABLE (0x1 << 7)
-#define I2CD_TX_BUFF_ENABLE (0x1 << 6)
-#define I2CD_M_STOP_CMD (0x1 << 5)
-#define I2CD_M_S_RX_CMD_LAST (0x1 << 4)
-#define I2CD_M_RX_CMD (0x1 << 3)
-#define I2CD_S_TX_CMD (0x1 << 2)
-#define I2CD_M_TX_CMD (0x1 << 1)
-#define I2CD_M_START_CMD (0x1)
-
-#define I2CD_DEV_ADDR_REG 0x18 /* Slave Device Address */
-#define I2CD_POOL_CTRL_REG 0x1c /* Pool Buffer Control */
-#define I2CD_POOL_RX_COUNT(x) (((x) >> 24) & 0xff)
-#define I2CD_POOL_RX_SIZE(x) ((((x) >> 16) & 0xff) + 1)
-#define I2CD_POOL_TX_COUNT(x) ((((x) >> 8) & 0xff) + 1)
-#define I2CD_POOL_OFFSET(x) (((x) & 0x3f) << 2) /* AST2400 */
-#define I2CD_BYTE_BUF_REG 0x20 /* Transmit/Receive Byte Buffer */
-#define I2CD_BYTE_BUF_TX_SHIFT 0
-#define I2CD_BYTE_BUF_TX_MASK 0xff
-#define I2CD_BYTE_BUF_RX_SHIFT 8
-#define I2CD_BYTE_BUF_RX_MASK 0xff
-#define I2CD_DMA_ADDR 0x24 /* DMA Buffer Address */
-#define I2CD_DMA_LEN 0x28 /* DMA Transfer Length < 4KB */
+ FIELD(I2CD_CMD, SCL_LINE_STS, 18, 1)
+ FIELD(I2CD_CMD, SDA_LINE_STS, 17, 1)
+ FIELD(I2CD_CMD, BUS_BUSY_STS, 16, 1)
+ FIELD(I2CD_CMD, SDA_OE_OUT_DIR, 15, 1)
+ FIELD(I2CD_CMD, SDA_O_OUT_DIR, 14, 1)
+ FIELD(I2CD_CMD, SCL_OE_OUT_DIR, 13, 1)
+ FIELD(I2CD_CMD, SCL_O_OUT_DIR, 12, 1)
+ FIELD(I2CD_CMD, BUS_RECOVER_CMD_EN, 11, 1)
+ FIELD(I2CD_CMD, S_ALT_EN, 10, 1)
+ /* Command Bits */
+ FIELD(I2CD_CMD, RX_DMA_EN, 9, 1)
+ FIELD(I2CD_CMD, TX_DMA_EN, 8, 1)
+ FIELD(I2CD_CMD, RX_BUFF_EN, 7, 1)
+ FIELD(I2CD_CMD, TX_BUFF_EN, 6, 1)
+ FIELD(I2CD_CMD, M_STOP_CMD, 5, 1)
+ FIELD(I2CD_CMD, M_S_RX_CMD_LAST, 4, 1)
+ FIELD(I2CD_CMD, M_RX_CMD, 3, 1)
+ FIELD(I2CD_CMD, S_TX_CMD, 2, 1)
+ FIELD(I2CD_CMD, M_TX_CMD, 1, 1)
+ FIELD(I2CD_CMD, M_START_CMD, 0, 1)
+REG32(I2CD_DEV_ADDR, 0x18) /* Slave Device Address */
+REG32(I2CD_POOL_CTRL, 0x1C) /* Pool Buffer Control */
+ FIELD(I2CD_POOL_CTRL, RX_COUNT, 24, 5)
+ FIELD(I2CD_POOL_CTRL, RX_SIZE, 16, 5)
+ FIELD(I2CD_POOL_CTRL, TX_COUNT, 9, 5)
+ FIELD(I2CD_POOL_CTRL, OFFSET, 2, 6) /* AST2400 */
+REG32(I2CD_BYTE_BUF, 0x20) /* Transmit/Receive Byte Buffer */
+ FIELD(I2CD_BYTE_BUF, RX_BUF, 8, 8)
+ FIELD(I2CD_BYTE_BUF, TX_BUF, 0, 8)
+REG32(I2CD_DMA_ADDR, 0x24) /* DMA Buffer Address */
+REG32(I2CD_DMA_LEN, 0x28) /* DMA Transfer Length < 4KB */
static inline bool aspeed_i2c_bus_is_master(AspeedI2CBus *bus)
{
- return bus->ctrl & I2CD_MASTER_EN;
+ return FIELD_EX32(bus->ctrl, I2CD_FUN_CTRL, MASTER_EN);
}
static inline bool aspeed_i2c_bus_is_enabled(AspeedI2CBus *bus)
{
- return bus->ctrl & (I2CD_MASTER_EN | I2CD_SLAVE_EN);
+ return FIELD_EX32(bus->ctrl, I2CD_FUN_CTRL, MASTER_EN) ||
+ FIELD_EX32(bus->ctrl, I2CD_FUN_CTRL, SLAVE_EN);
}
static inline void aspeed_i2c_bus_raise_interrupt(AspeedI2CBus *bus)
@@ -160,11 +147,13 @@ static inline void aspeed_i2c_bus_raise_interrupt(AspeedI2CBus *bus)
AspeedI2CClass *aic = ASPEED_I2C_GET_CLASS(bus->controller);
trace_aspeed_i2c_bus_raise_interrupt(bus->intr_status,
- bus->intr_status & I2CD_INTR_TX_NAK ? "nak|" : "",
- bus->intr_status & I2CD_INTR_TX_ACK ? "ack|" : "",
- bus->intr_status & I2CD_INTR_RX_DONE ? "done|" : "",
- bus->intr_status & I2CD_INTR_NORMAL_STOP ? "normal|" : "",
- bus->intr_status & I2CD_INTR_ABNORMAL ? "abnormal" : "");
+ FIELD_EX32(bus->intr_status, I2CD_INTR_STS, TX_NAK) ? "nak|" : "",
+ FIELD_EX32(bus->intr_status, I2CD_INTR_STS, TX_ACK) ? "ack|" : "",
+ FIELD_EX32(bus->intr_status, I2CD_INTR_STS, RX_DONE) ? "done|" : "",
+ FIELD_EX32(bus->intr_status, I2CD_INTR_STS, NORMAL_STOP) ? "normal|"
+ : "",
+ FIELD_EX32(bus->intr_status, I2CD_INTR_STS, ABNORMAL) ? "abnormal"
+ : "");
bus->intr_status &= bus->intr_ctrl;
if (bus->intr_status) {
@@ -181,38 +170,38 @@ static uint64_t aspeed_i2c_bus_read(void *opaque, hwaddr offset,
uint64_t value = -1;
switch (offset) {
- case I2CD_FUN_CTRL_REG:
+ case A_I2CD_FUN_CTRL:
value = bus->ctrl;
break;
- case I2CD_AC_TIMING_REG1:
+ case A_I2CD_AC_TIMING1:
value = bus->timing[0];
break;
- case I2CD_AC_TIMING_REG2:
+ case A_I2CD_AC_TIMING2:
value = bus->timing[1];
break;
- case I2CD_INTR_CTRL_REG:
+ case A_I2CD_INTR_CTRL:
value = bus->intr_ctrl;
break;
- case I2CD_INTR_STS_REG:
+ case A_I2CD_INTR_STS:
value = bus->intr_status;
break;
- case I2CD_POOL_CTRL_REG:
+ case A_I2CD_POOL_CTRL:
value = bus->pool_ctrl;
break;
- case I2CD_BYTE_BUF_REG:
+ case A_I2CD_BYTE_BUF:
value = bus->buf;
break;
- case I2CD_CMD_REG:
+ case A_I2CD_CMD:
value = bus->cmd | (i2c_bus_busy(bus->bus) << 16);
break;
- case I2CD_DMA_ADDR:
+ case A_I2CD_DMA_ADDR:
if (!aic->has_dma) {
qemu_log_mask(LOG_GUEST_ERROR, "%s: No DMA support\n", __func__);
break;
}
value = bus->dma_addr;
break;
- case I2CD_DMA_LEN:
+ case A_I2CD_DMA_LEN:
if (!aic->has_dma) {
qemu_log_mask(LOG_GUEST_ERROR, "%s: No DMA support\n", __func__);
break;
@@ -233,13 +222,12 @@ static uint64_t aspeed_i2c_bus_read(void *opaque, hwaddr offset,
static void aspeed_i2c_set_state(AspeedI2CBus *bus, uint8_t state)
{
- bus->cmd &= ~(I2CD_TX_STATE_MASK << I2CD_TX_STATE_SHIFT);
- bus->cmd |= (state & I2CD_TX_STATE_MASK) << I2CD_TX_STATE_SHIFT;
+ bus->cmd = FIELD_DP32(bus->cmd, I2CD_CMD, TX_STATE, state);
}
static uint8_t aspeed_i2c_get_state(AspeedI2CBus *bus)
{
- return (bus->cmd >> I2CD_TX_STATE_SHIFT) & I2CD_TX_STATE_MASK;
+ return FIELD_EX32(bus->cmd, I2CD_CMD, TX_STATE);
}
static int aspeed_i2c_dma_read(AspeedI2CBus *bus, uint8_t *data)
@@ -265,21 +253,21 @@ static int aspeed_i2c_bus_send(AspeedI2CBus *bus, uint8_t pool_start)
AspeedI2CClass *aic = ASPEED_I2C_GET_CLASS(bus->controller);
int ret = -1;
int i;
+ int pool_tx_count = FIELD_EX32(bus->pool_ctrl, I2CD_POOL_CTRL, TX_COUNT);
- if (bus->cmd & I2CD_TX_BUFF_ENABLE) {
- for (i = pool_start; i < I2CD_POOL_TX_COUNT(bus->pool_ctrl); i++) {
+ if (FIELD_EX32(bus->cmd, I2CD_CMD, TX_BUFF_EN)) {
+ for (i = pool_start; i < pool_tx_count; i++) {
uint8_t *pool_base = aic->bus_pool_base(bus);
- trace_aspeed_i2c_bus_send("BUF", i + 1,
- I2CD_POOL_TX_COUNT(bus->pool_ctrl),
+ trace_aspeed_i2c_bus_send("BUF", i + 1, pool_tx_count,
pool_base[i]);
ret = i2c_send(bus->bus, pool_base[i]);
if (ret) {
break;
}
}
- bus->cmd &= ~I2CD_TX_BUFF_ENABLE;
- } else if (bus->cmd & I2CD_TX_DMA_ENABLE) {
+ bus->cmd = FIELD_DP32(bus->cmd, I2CD_CMD, TX_BUFF_EN, 0);
+ } else if (FIELD_EX32(bus->cmd, I2CD_CMD, TX_DMA_EN)) {
while (bus->dma_len) {
uint8_t data;
aspeed_i2c_dma_read(bus, &data);
@@ -289,7 +277,7 @@ static int aspeed_i2c_bus_send(AspeedI2CBus *bus, uint8_t pool_start)
break;
}
}
- bus->cmd &= ~I2CD_TX_DMA_ENABLE;
+ bus->cmd = FIELD_DP32(bus->cmd, I2CD_CMD, TX_DMA_EN, 0);
} else {
trace_aspeed_i2c_bus_send("BYTE", pool_start, 1, bus->buf);
ret = i2c_send(bus->bus, bus->buf);
@@ -304,22 +292,22 @@ static void aspeed_i2c_bus_recv(AspeedI2CBus *bus)
AspeedI2CClass *aic = ASPEED_I2C_GET_CLASS(s);
uint8_t data;
int i;
+ int pool_rx_count = FIELD_EX32(bus->pool_ctrl, I2CD_POOL_CTRL, RX_COUNT);
- if (bus->cmd & I2CD_RX_BUFF_ENABLE) {
+ if (FIELD_EX32(bus->cmd, I2CD_CMD, RX_BUFF_EN)) {
uint8_t *pool_base = aic->bus_pool_base(bus);
- for (i = 0; i < I2CD_POOL_RX_SIZE(bus->pool_ctrl); i++) {
+ for (i = 0; i < pool_rx_count; i++) {
pool_base[i] = i2c_recv(bus->bus);
- trace_aspeed_i2c_bus_recv("BUF", i + 1,
- I2CD_POOL_RX_SIZE(bus->pool_ctrl),
+ trace_aspeed_i2c_bus_recv("BUF", i + 1, pool_rx_count,
pool_base[i]);
}
/* Update RX count */
- bus->pool_ctrl &= ~(0xff << 24);
- bus->pool_ctrl |= (i & 0xff) << 24;
- bus->cmd &= ~I2CD_RX_BUFF_ENABLE;
- } else if (bus->cmd & I2CD_RX_DMA_ENABLE) {
+ bus->pool_ctrl = FIELD_DP32(bus->pool_ctrl, I2CD_POOL_CTRL, RX_COUNT,
+ i & 0xff);
+ bus->cmd = FIELD_DP32(bus->cmd, I2CD_CMD, RX_BUFF_EN, 0);
+ } else if (FIELD_EX32(bus->cmd, I2CD_CMD, RX_DMA_EN)) {
uint8_t data;
while (bus->dma_len) {
@@ -337,11 +325,11 @@ static void aspeed_i2c_bus_recv(AspeedI2CBus *bus)
bus->dma_addr++;
bus->dma_len--;
}
- bus->cmd &= ~I2CD_RX_DMA_ENABLE;
+ bus->cmd = FIELD_DP32(bus->cmd, I2CD_CMD, RX_DMA_EN, 0);
} else {
data = i2c_recv(bus->bus);
trace_aspeed_i2c_bus_recv("BYTE", 1, 1, bus->buf);
- bus->buf = (data & I2CD_BYTE_BUF_RX_MASK) << I2CD_BYTE_BUF_RX_SHIFT;
+ bus->buf = FIELD_DP32(bus->buf, I2CD_BYTE_BUF, RX_BUF, data);
}
}
@@ -349,11 +337,12 @@ static void aspeed_i2c_handle_rx_cmd(AspeedI2CBus *bus)
{
aspeed_i2c_set_state(bus, I2CD_MRXD);
aspeed_i2c_bus_recv(bus);
- bus->intr_status |= I2CD_INTR_RX_DONE;
- if (bus->cmd & I2CD_M_S_RX_CMD_LAST) {
+ bus->intr_status = FIELD_DP32(bus->intr_status, I2CD_INTR_STS, RX_DONE, 1);
+ if (FIELD_EX32(bus->cmd, I2CD_CMD, M_S_RX_CMD_LAST)) {
i2c_nack(bus->bus);
}
- bus->cmd &= ~(I2CD_M_RX_CMD | I2CD_M_S_RX_CMD_LAST);
+ bus->cmd = FIELD_DP32(bus->cmd, I2CD_CMD, M_RX_CMD, 0);
+ bus->cmd = FIELD_DP32(bus->cmd, I2CD_CMD, M_S_RX_CMD_LAST, 0);
aspeed_i2c_set_state(bus, I2CD_MACTIVE);
}
@@ -361,11 +350,11 @@ static uint8_t aspeed_i2c_get_addr(AspeedI2CBus *bus)
{
AspeedI2CClass *aic = ASPEED_I2C_GET_CLASS(bus->controller);
- if (bus->cmd & I2CD_TX_BUFF_ENABLE) {
+ if (FIELD_EX32(bus->cmd, I2CD_CMD, TX_BUFF_EN)) {
uint8_t *pool_base = aic->bus_pool_base(bus);
return pool_base[0];
- } else if (bus->cmd & I2CD_TX_DMA_ENABLE) {
+ } else if (FIELD_EX32(bus->cmd, I2CD_CMD, TX_DMA_EN)) {
uint8_t data;
aspeed_i2c_dma_read(bus, &data);
@@ -379,7 +368,10 @@ static bool aspeed_i2c_check_sram(AspeedI2CBus *bus)
{
AspeedI2CState *s = bus->controller;
AspeedI2CClass *aic = ASPEED_I2C_GET_CLASS(s);
-
+ bool dma_en = FIELD_EX32(bus->cmd, I2CD_CMD, RX_DMA_EN) ||
+ FIELD_EX32(bus->cmd, I2CD_CMD, TX_DMA_EN) ||
+ FIELD_EX32(bus->cmd, I2CD_CMD, RX_BUFF_EN) ||
+ FIELD_EX32(bus->cmd, I2CD_CMD, TX_BUFF_EN);
if (!aic->check_sram) {
return true;
}
@@ -388,9 +380,7 @@ static bool aspeed_i2c_check_sram(AspeedI2CBus *bus)
* AST2500: SRAM must be enabled before using the Buffer Pool or
* DMA mode.
*/
- if (!(s->ctrl_global & I2C_CTRL_SRAM_EN) &&
- (bus->cmd & (I2CD_RX_DMA_ENABLE | I2CD_TX_DMA_ENABLE |
- I2CD_RX_BUFF_ENABLE | I2CD_TX_BUFF_ENABLE))) {
+ if (!FIELD_EX32(s->ctrl_global, I2C_CTRL_GLOBAL, SRAM_EN) && dma_en) {
qemu_log_mask(LOG_GUEST_ERROR, "%s: SRAM is not enabled\n", __func__);
return false;
}
@@ -402,25 +392,24 @@ static void aspeed_i2c_bus_cmd_dump(AspeedI2CBus *bus)
{
g_autofree char *cmd_flags = NULL;
uint32_t count;
-
- if (bus->cmd & (I2CD_RX_BUFF_ENABLE | I2CD_RX_BUFF_ENABLE)) {
- count = I2CD_POOL_TX_COUNT(bus->pool_ctrl);
- } else if (bus->cmd & (I2CD_RX_DMA_ENABLE | I2CD_RX_DMA_ENABLE)) {
+ if (FIELD_EX32(bus->cmd, I2CD_CMD, RX_BUFF_EN)) {
+ count = FIELD_EX32(bus->pool_ctrl, I2CD_POOL_CTRL, TX_COUNT);
+ } else if (FIELD_EX32(bus->cmd, I2CD_CMD, RX_DMA_EN)) {
count = bus->dma_len;
} else { /* BYTE mode */
count = 1;
}
cmd_flags = g_strdup_printf("%s%s%s%s%s%s%s%s%s",
- bus->cmd & I2CD_M_START_CMD ? "start|" : "",
- bus->cmd & I2CD_RX_DMA_ENABLE ? "rxdma|" : "",
- bus->cmd & I2CD_TX_DMA_ENABLE ? "txdma|" : "",
- bus->cmd & I2CD_RX_BUFF_ENABLE ? "rxbuf|" : "",
- bus->cmd & I2CD_TX_BUFF_ENABLE ? "txbuf|" : "",
- bus->cmd & I2CD_M_TX_CMD ? "tx|" : "",
- bus->cmd & I2CD_M_RX_CMD ? "rx|" : "",
- bus->cmd & I2CD_M_S_RX_CMD_LAST ? "last|" : "",
- bus->cmd & I2CD_M_STOP_CMD ? "stop" : "");
+ FIELD_EX32(bus->cmd, I2CD_CMD, M_START_CMD) ? "start|" : "",
+ FIELD_EX32(bus->cmd, I2CD_CMD, RX_DMA_EN) ? "rxdma|" : "",
+ FIELD_EX32(bus->cmd, I2CD_CMD, TX_DMA_EN) ? "txdma|" : "",
+ FIELD_EX32(bus->cmd, I2CD_CMD, RX_BUFF_EN) ? "rxbuf|" : "",
+ FIELD_EX32(bus->cmd, I2CD_CMD, TX_BUFF_EN) ? "txbuf|" : "",
+ FIELD_EX32(bus->cmd, I2CD_CMD, M_TX_CMD) ? "tx|" : "",
+ FIELD_EX32(bus->cmd, I2CD_CMD, M_RX_CMD) ? "rx|" : "",
+ FIELD_EX32(bus->cmd, I2CD_CMD, M_S_RX_CMD_LAST) ? "last|" : "",
+ FIELD_EX32(bus->cmd, I2CD_CMD, M_STOP_CMD) ? "stop" : "");
trace_aspeed_i2c_bus_cmd(bus->cmd, cmd_flags, count, bus->intr_status);
}
@@ -444,7 +433,7 @@ static void aspeed_i2c_bus_handle_cmd(AspeedI2CBus *bus, uint64_t value)
aspeed_i2c_bus_cmd_dump(bus);
}
- if (bus->cmd & I2CD_M_START_CMD) {
+ if (FIELD_EX32(bus->cmd, I2CD_CMD, M_START_CMD)) {
uint8_t state = aspeed_i2c_get_state(bus) & I2CD_MACTIVE ?
I2CD_MSTARTR : I2CD_MSTART;
uint8_t addr;
@@ -455,21 +444,23 @@ static void aspeed_i2c_bus_handle_cmd(AspeedI2CBus *bus, uint64_t value)
if (i2c_start_transfer(bus->bus, extract32(addr, 1, 7),
extract32(addr, 0, 1))) {
- bus->intr_status |= I2CD_INTR_TX_NAK;
+ bus->intr_status = FIELD_DP32(bus->intr_status, I2CD_INTR_STS,
+ TX_NAK, 1);
} else {
- bus->intr_status |= I2CD_INTR_TX_ACK;
+ bus->intr_status = FIELD_DP32(bus->intr_status, I2CD_INTR_STS,
+ TX_ACK, 1);
}
- bus->cmd &= ~I2CD_M_START_CMD;
+ bus->cmd = FIELD_DP32(bus->cmd, I2CD_CMD, M_START_CMD, 0);
/*
* The START command is also a TX command, as the slave
* address is sent on the bus. Drop the TX flag if nothing
* else needs to be sent in this sequence.
*/
- if (bus->cmd & I2CD_TX_BUFF_ENABLE) {
- if (I2CD_POOL_TX_COUNT(bus->pool_ctrl) == 1) {
- bus->cmd &= ~I2CD_M_TX_CMD;
+ if (FIELD_EX32(bus->cmd, I2CD_CMD, TX_BUFF_EN)) {
+ if (FIELD_EX32(bus->pool_ctrl, I2CD_POOL_CTRL, TX_COUNT) == 1) {
+ bus->cmd = FIELD_DP32(bus->cmd, I2CD_CMD, M_TX_CMD, 0);
} else {
/*
* Increase the start index in the TX pool buffer to
@@ -477,12 +468,12 @@ static void aspeed_i2c_bus_handle_cmd(AspeedI2CBus *bus, uint64_t value)
*/
pool_start++;
}
- } else if (bus->cmd & I2CD_TX_DMA_ENABLE) {
+ } else if (FIELD_EX32(bus->cmd, I2CD_CMD, TX_DMA_EN)) {
if (bus->dma_len == 0) {
- bus->cmd &= ~I2CD_M_TX_CMD;
+ bus->cmd = FIELD_DP32(bus->cmd, I2CD_CMD, M_TX_CMD, 0);
}
} else {
- bus->cmd &= ~I2CD_M_TX_CMD;
+ bus->cmd = FIELD_DP32(bus->cmd, I2CD_CMD, M_TX_CMD, 0);
}
/* No slave found */
@@ -492,33 +483,38 @@ static void aspeed_i2c_bus_handle_cmd(AspeedI2CBus *bus, uint64_t value)
aspeed_i2c_set_state(bus, I2CD_MACTIVE);
}
- if (bus->cmd & I2CD_M_TX_CMD) {
+ if (FIELD_EX32(bus->cmd, I2CD_CMD, M_TX_CMD)) {
aspeed_i2c_set_state(bus, I2CD_MTXD);
if (aspeed_i2c_bus_send(bus, pool_start)) {
- bus->intr_status |= (I2CD_INTR_TX_NAK);
+ bus->intr_status = FIELD_DP32(bus->intr_status, I2CD_INTR_STS,
+ TX_NAK, 1);
i2c_end_transfer(bus->bus);
} else {
- bus->intr_status |= I2CD_INTR_TX_ACK;
+ bus->intr_status = FIELD_DP32(bus->intr_status, I2CD_INTR_STS,
+ TX_ACK, 1);
}
- bus->cmd &= ~I2CD_M_TX_CMD;
+ bus->cmd = FIELD_DP32(bus->cmd, I2CD_CMD, M_TX_CMD, 0);
aspeed_i2c_set_state(bus, I2CD_MACTIVE);
}
- if ((bus->cmd & (I2CD_M_RX_CMD | I2CD_M_S_RX_CMD_LAST)) &&
- !(bus->intr_status & I2CD_INTR_RX_DONE)) {
+ if ((FIELD_EX32(bus->cmd, I2CD_CMD, M_RX_CMD) ||
+ FIELD_EX32(bus->cmd, I2CD_CMD, M_S_RX_CMD_LAST)) &&
+ !FIELD_EX32(bus->intr_status, I2CD_INTR_STS, RX_DONE)) {
aspeed_i2c_handle_rx_cmd(bus);
}
- if (bus->cmd & I2CD_M_STOP_CMD) {
+ if (FIELD_EX32(bus->cmd, I2CD_CMD, M_STOP_CMD)) {
if (!(aspeed_i2c_get_state(bus) & I2CD_MACTIVE)) {
qemu_log_mask(LOG_GUEST_ERROR, "%s: abnormal stop\n", __func__);
- bus->intr_status |= I2CD_INTR_ABNORMAL;
+ bus->intr_status = FIELD_DP32(bus->intr_status, I2CD_INTR_STS,
+ ABNORMAL, 1);
} else {
aspeed_i2c_set_state(bus, I2CD_MSTOP);
i2c_end_transfer(bus->bus);
- bus->intr_status |= I2CD_INTR_NORMAL_STOP;
+ bus->intr_status = FIELD_DP32(bus->intr_status, I2CD_INTR_STS,
+ NORMAL_STOP, 1);
}
- bus->cmd &= ~I2CD_M_STOP_CMD;
+ bus->cmd = FIELD_DP32(bus->cmd, I2CD_CMD, M_STOP_CMD, 0);
aspeed_i2c_set_state(bus, I2CD_IDLE);
}
}
@@ -533,49 +529,50 @@ static void aspeed_i2c_bus_write(void *opaque, hwaddr offset,
trace_aspeed_i2c_bus_write(bus->id, offset, size, value);
switch (offset) {
- case I2CD_FUN_CTRL_REG:
- if (value & I2CD_SLAVE_EN) {
+ case A_I2CD_FUN_CTRL:
+ if (FIELD_EX32(value, I2CD_FUN_CTRL, SLAVE_EN)) {
qemu_log_mask(LOG_UNIMP, "%s: slave mode not implemented\n",
__func__);
break;
}
bus->ctrl = value & 0x0071C3FF;
break;
- case I2CD_AC_TIMING_REG1:
+ case A_I2CD_AC_TIMING1:
bus->timing[0] = value & 0xFFFFF0F;
break;
- case I2CD_AC_TIMING_REG2:
+ case A_I2CD_AC_TIMING2:
bus->timing[1] = value & 0x7;
break;
- case I2CD_INTR_CTRL_REG:
+ case A_I2CD_INTR_CTRL:
bus->intr_ctrl = value & 0x7FFF;
break;
- case I2CD_INTR_STS_REG:
- handle_rx = (bus->intr_status & I2CD_INTR_RX_DONE) &&
- (value & I2CD_INTR_RX_DONE);
+ case A_I2CD_INTR_STS:
+ handle_rx = FIELD_EX32(bus->intr_status, I2CD_INTR_STS, RX_DONE) &&
+ FIELD_EX32(value, I2CD_INTR_STS, RX_DONE);
bus->intr_status &= ~(value & 0x7FFF);
if (!bus->intr_status) {
bus->controller->intr_status &= ~(1 << bus->id);
qemu_irq_lower(aic->bus_get_irq(bus));
}
- if (handle_rx && (bus->cmd & (I2CD_M_RX_CMD | I2CD_M_S_RX_CMD_LAST))) {
+ if (handle_rx && (FIELD_EX32(bus->cmd, I2CD_CMD, M_RX_CMD) ||
+ FIELD_EX32(bus->cmd, I2CD_CMD, M_S_RX_CMD_LAST))) {
aspeed_i2c_handle_rx_cmd(bus);
aspeed_i2c_bus_raise_interrupt(bus);
}
break;
- case I2CD_DEV_ADDR_REG:
+ case A_I2CD_DEV_ADDR:
qemu_log_mask(LOG_UNIMP, "%s: slave mode not implemented\n",
__func__);
break;
- case I2CD_POOL_CTRL_REG:
+ case A_I2CD_POOL_CTRL:
bus->pool_ctrl &= ~0xffffff;
bus->pool_ctrl |= (value & 0xffffff);
break;
- case I2CD_BYTE_BUF_REG:
- bus->buf = (value & I2CD_BYTE_BUF_TX_MASK) << I2CD_BYTE_BUF_TX_SHIFT;
+ case A_I2CD_BYTE_BUF:
+ bus->buf = FIELD_DP32(bus->buf, I2CD_BYTE_BUF, TX_BUF, value);
break;
- case I2CD_CMD_REG:
+ case A_I2CD_CMD:
if (!aspeed_i2c_bus_is_enabled(bus)) {
break;
}
@@ -587,7 +584,8 @@ static void aspeed_i2c_bus_write(void *opaque, hwaddr offset,
}
if (!aic->has_dma &&
- value & (I2CD_RX_DMA_ENABLE | I2CD_TX_DMA_ENABLE)) {
+ (FIELD_EX32(value, I2CD_CMD, RX_DMA_EN) ||
+ FIELD_EX32(value, I2CD_CMD, TX_DMA_EN))) {
qemu_log_mask(LOG_GUEST_ERROR, "%s: No DMA support\n", __func__);
break;
}
@@ -595,7 +593,7 @@ static void aspeed_i2c_bus_write(void *opaque, hwaddr offset,
aspeed_i2c_bus_handle_cmd(bus, value);
aspeed_i2c_bus_raise_interrupt(bus);
break;
- case I2CD_DMA_ADDR:
+ case A_I2CD_DMA_ADDR:
if (!aic->has_dma) {
qemu_log_mask(LOG_GUEST_ERROR, "%s: No DMA support\n", __func__);
break;
@@ -604,7 +602,7 @@ static void aspeed_i2c_bus_write(void *opaque, hwaddr offset,
bus->dma_addr = value & 0x3ffffffc;
break;
- case I2CD_DMA_LEN:
+ case A_I2CD_DMA_LEN:
if (!aic->has_dma) {
qemu_log_mask(LOG_GUEST_ERROR, "%s: No DMA support\n", __func__);
break;
@@ -628,9 +626,9 @@ static uint64_t aspeed_i2c_ctrl_read(void *opaque, hwaddr offset,
AspeedI2CState *s = opaque;
switch (offset) {
- case I2C_CTRL_STATUS:
+ case A_I2C_CTRL_STATUS:
return s->intr_status;
- case I2C_CTRL_GLOBAL:
+ case A_I2C_CTRL_GLOBAL:
return s->ctrl_global;
default:
qemu_log_mask(LOG_GUEST_ERROR, "%s: Bad offset 0x%" HWADDR_PRIx "\n",
@@ -647,10 +645,10 @@ static void aspeed_i2c_ctrl_write(void *opaque, hwaddr offset,
AspeedI2CState *s = opaque;
switch (offset) {
- case I2C_CTRL_GLOBAL:
+ case A_I2C_CTRL_GLOBAL:
s->ctrl_global = value;
break;
- case I2C_CTRL_STATUS:
+ case A_I2C_CTRL_STATUS:
default:
qemu_log_mask(LOG_GUEST_ERROR, "%s: Bad offset 0x%" HWADDR_PRIx "\n",
__func__, offset);
@@ -919,9 +917,10 @@ static qemu_irq aspeed_2400_i2c_bus_get_irq(AspeedI2CBus *bus)
static uint8_t *aspeed_2400_i2c_bus_pool_base(AspeedI2CBus *bus)
{
uint8_t *pool_page =
- &bus->controller->pool[I2CD_POOL_PAGE_SEL(bus->ctrl) * 0x100];
+ &bus->controller->pool[FIELD_EX32(bus->ctrl, I2CD_FUN_CTRL,
+ POOL_PAGE_SEL) * 0x100];
- return &pool_page[I2CD_POOL_OFFSET(bus->pool_ctrl)];
+ return &pool_page[FIELD_EX32(bus->pool_ctrl, I2CD_POOL_CTRL, OFFSET)];
}
static void aspeed_2400_i2c_class_init(ObjectClass *klass, void *data)
--
2.35.3
^ permalink raw reply related [flat|nested] 18+ messages in thread* [PATCH v2 09/17] aspeed: i2c: Use reg array instead of individual vars
2022-06-13 13:25 [PATCH v2 00/17] aspeed: Extend ast2600 I2C model with new mode Cédric Le Goater
` (7 preceding siblings ...)
2022-06-13 13:25 ` [PATCH v2 08/17] aspeed: i2c: Migrate to registerfields API Cédric Le Goater
@ 2022-06-13 13:25 ` Cédric Le Goater
2022-06-13 13:25 ` [PATCH v2 10/17] aspeed: i2c: Add new mode support Cédric Le Goater
` (7 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: Cédric Le Goater @ 2022-06-13 13:25 UTC (permalink / raw)
To: qemu-arm, qemu-devel
Cc: Peter Maydell, Joe Komlodi, Troy Lee, Jamin Lin, Steven Lee,
Klaus Jensen, Peter Delevoryas, Corey Minyard, Jonathan Cameron,
Damien Hedde, Andrew Jeffery, Joel Stanley, Cleber Rosa,
Philippe Mathieu-Daudé, Wainer dos Santos Moschetta,
Beraldo Leal, Cédric Le Goater
From: Joe Komlodi <komlodi@google.com>
Using a register array will allow us to represent old-mode and new-mode
I2C registers by using the same underlying register array, instead of
adding an entire new set of variables to represent new mode.
As part of this, we also do additional cleanup to use ARRAY_FIELD_
macros instead of FIELD_ macros on registers.
Signed-off-by: Joe Komlodi <komlodi@google.com>
Change-Id: Ib94996b17c361b8490c042b43c99d8abc69332e3
[ clg: use of memset in aspeed_i2c_bus_reset() ]
Message-Id: <20220331043248.2237838-5-komlodi@google.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
include/hw/i2c/aspeed_i2c.h | 11 +-
hw/i2c/aspeed_i2c.c | 281 ++++++++++++++++--------------------
2 files changed, 128 insertions(+), 164 deletions(-)
diff --git a/include/hw/i2c/aspeed_i2c.h b/include/hw/i2c/aspeed_i2c.h
index 4b9be09274c7..8abb013d219c 100644
--- a/include/hw/i2c/aspeed_i2c.h
+++ b/include/hw/i2c/aspeed_i2c.h
@@ -33,6 +33,7 @@ OBJECT_DECLARE_TYPE(AspeedI2CState, AspeedI2CClass, ASPEED_I2C)
#define ASPEED_I2C_NR_BUSSES 16
#define ASPEED_I2C_MAX_POOL_SIZE 0x800
+#define ASPEED_I2C_OLD_NUM_REG 11
struct AspeedI2CState;
@@ -49,15 +50,7 @@ struct AspeedI2CBus {
uint8_t id;
qemu_irq irq;
- uint32_t ctrl;
- uint32_t timing[2];
- uint32_t intr_ctrl;
- uint32_t intr_status;
- uint32_t cmd;
- uint32_t buf;
- uint32_t pool_ctrl;
- uint32_t dma_addr;
- uint32_t dma_len;
+ uint32_t regs[ASPEED_I2C_OLD_NUM_REG];
};
struct AspeedI2CState {
diff --git a/hw/i2c/aspeed_i2c.c b/hw/i2c/aspeed_i2c.c
index 63d35f874c99..d13866908451 100644
--- a/hw/i2c/aspeed_i2c.c
+++ b/hw/i2c/aspeed_i2c.c
@@ -133,30 +133,30 @@ REG32(I2CD_DMA_LEN, 0x28) /* DMA Transfer Length < 4KB */
static inline bool aspeed_i2c_bus_is_master(AspeedI2CBus *bus)
{
- return FIELD_EX32(bus->ctrl, I2CD_FUN_CTRL, MASTER_EN);
+ return ARRAY_FIELD_EX32(bus->regs, I2CD_FUN_CTRL, MASTER_EN);
}
static inline bool aspeed_i2c_bus_is_enabled(AspeedI2CBus *bus)
{
- return FIELD_EX32(bus->ctrl, I2CD_FUN_CTRL, MASTER_EN) ||
- FIELD_EX32(bus->ctrl, I2CD_FUN_CTRL, SLAVE_EN);
+ return ARRAY_FIELD_EX32(bus->regs, I2CD_FUN_CTRL, MASTER_EN) ||
+ ARRAY_FIELD_EX32(bus->regs, I2CD_FUN_CTRL, SLAVE_EN);
}
static inline void aspeed_i2c_bus_raise_interrupt(AspeedI2CBus *bus)
{
AspeedI2CClass *aic = ASPEED_I2C_GET_CLASS(bus->controller);
- trace_aspeed_i2c_bus_raise_interrupt(bus->intr_status,
- FIELD_EX32(bus->intr_status, I2CD_INTR_STS, TX_NAK) ? "nak|" : "",
- FIELD_EX32(bus->intr_status, I2CD_INTR_STS, TX_ACK) ? "ack|" : "",
- FIELD_EX32(bus->intr_status, I2CD_INTR_STS, RX_DONE) ? "done|" : "",
- FIELD_EX32(bus->intr_status, I2CD_INTR_STS, NORMAL_STOP) ? "normal|"
- : "",
- FIELD_EX32(bus->intr_status, I2CD_INTR_STS, ABNORMAL) ? "abnormal"
- : "");
-
- bus->intr_status &= bus->intr_ctrl;
- if (bus->intr_status) {
+ trace_aspeed_i2c_bus_raise_interrupt(bus->regs[R_I2CD_INTR_STS],
+ ARRAY_FIELD_EX32(bus->regs, I2CD_INTR_STS, TX_NAK) ? "nak|" : "",
+ ARRAY_FIELD_EX32(bus->regs, I2CD_INTR_STS, TX_ACK) ? "ack|" : "",
+ ARRAY_FIELD_EX32(bus->regs, I2CD_INTR_STS, RX_DONE) ? "done|" : "",
+ ARRAY_FIELD_EX32(bus->regs, I2CD_INTR_STS, NORMAL_STOP) ? "normal|"
+ : "",
+ ARRAY_FIELD_EX32(bus->regs, I2CD_INTR_STS, ABNORMAL) ? "abnormal"
+ : "");
+
+ bus->regs[R_I2CD_INTR_STS] &= bus->regs[R_I2CD_INTR_CTRL];
+ if (bus->regs[R_I2CD_INTR_STS]) {
bus->controller->intr_status |= 1 << bus->id;
qemu_irq_raise(aic->bus_get_irq(bus));
}
@@ -167,46 +167,33 @@ static uint64_t aspeed_i2c_bus_read(void *opaque, hwaddr offset,
{
AspeedI2CBus *bus = opaque;
AspeedI2CClass *aic = ASPEED_I2C_GET_CLASS(bus->controller);
- uint64_t value = -1;
+ uint64_t value = bus->regs[offset / sizeof(*bus->regs)];
switch (offset) {
case A_I2CD_FUN_CTRL:
- value = bus->ctrl;
- break;
case A_I2CD_AC_TIMING1:
- value = bus->timing[0];
- break;
case A_I2CD_AC_TIMING2:
- value = bus->timing[1];
- break;
case A_I2CD_INTR_CTRL:
- value = bus->intr_ctrl;
- break;
case A_I2CD_INTR_STS:
- value = bus->intr_status;
- break;
case A_I2CD_POOL_CTRL:
- value = bus->pool_ctrl;
- break;
case A_I2CD_BYTE_BUF:
- value = bus->buf;
+ /* Value is already set, don't do anything. */
break;
case A_I2CD_CMD:
- value = bus->cmd | (i2c_bus_busy(bus->bus) << 16);
+ value = FIELD_DP32(value, I2CD_CMD, BUS_BUSY_STS,
+ i2c_bus_busy(bus->bus));
break;
case A_I2CD_DMA_ADDR:
if (!aic->has_dma) {
qemu_log_mask(LOG_GUEST_ERROR, "%s: No DMA support\n", __func__);
- break;
+ value = -1;
}
- value = bus->dma_addr;
break;
case A_I2CD_DMA_LEN:
if (!aic->has_dma) {
qemu_log_mask(LOG_GUEST_ERROR, "%s: No DMA support\n", __func__);
- break;
+ value = -1;
}
- value = bus->dma_len;
break;
default:
@@ -222,12 +209,12 @@ static uint64_t aspeed_i2c_bus_read(void *opaque, hwaddr offset,
static void aspeed_i2c_set_state(AspeedI2CBus *bus, uint8_t state)
{
- bus->cmd = FIELD_DP32(bus->cmd, I2CD_CMD, TX_STATE, state);
+ ARRAY_FIELD_DP32(bus->regs, I2CD_CMD, TX_STATE, state);
}
static uint8_t aspeed_i2c_get_state(AspeedI2CBus *bus)
{
- return FIELD_EX32(bus->cmd, I2CD_CMD, TX_STATE);
+ return ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, TX_STATE);
}
static int aspeed_i2c_dma_read(AspeedI2CBus *bus, uint8_t *data)
@@ -235,16 +222,16 @@ static int aspeed_i2c_dma_read(AspeedI2CBus *bus, uint8_t *data)
MemTxResult result;
AspeedI2CState *s = bus->controller;
- result = address_space_read(&s->dram_as, bus->dma_addr,
+ result = address_space_read(&s->dram_as, bus->regs[R_I2CD_DMA_ADDR],
MEMTXATTRS_UNSPECIFIED, data, 1);
if (result != MEMTX_OK) {
qemu_log_mask(LOG_GUEST_ERROR, "%s: DRAM read failed @%08x\n",
- __func__, bus->dma_addr);
+ __func__, bus->regs[R_I2CD_DMA_ADDR]);
return -1;
}
- bus->dma_addr++;
- bus->dma_len--;
+ bus->regs[R_I2CD_DMA_ADDR]++;
+ bus->regs[R_I2CD_DMA_LEN]--;
return 0;
}
@@ -253,9 +240,9 @@ static int aspeed_i2c_bus_send(AspeedI2CBus *bus, uint8_t pool_start)
AspeedI2CClass *aic = ASPEED_I2C_GET_CLASS(bus->controller);
int ret = -1;
int i;
- int pool_tx_count = FIELD_EX32(bus->pool_ctrl, I2CD_POOL_CTRL, TX_COUNT);
+ int pool_tx_count = ARRAY_FIELD_EX32(bus->regs, I2CD_POOL_CTRL, TX_COUNT);
- if (FIELD_EX32(bus->cmd, I2CD_CMD, TX_BUFF_EN)) {
+ if (ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, TX_BUFF_EN)) {
for (i = pool_start; i < pool_tx_count; i++) {
uint8_t *pool_base = aic->bus_pool_base(bus);
@@ -266,21 +253,23 @@ static int aspeed_i2c_bus_send(AspeedI2CBus *bus, uint8_t pool_start)
break;
}
}
- bus->cmd = FIELD_DP32(bus->cmd, I2CD_CMD, TX_BUFF_EN, 0);
- } else if (FIELD_EX32(bus->cmd, I2CD_CMD, TX_DMA_EN)) {
- while (bus->dma_len) {
+ ARRAY_FIELD_DP32(bus->regs, I2CD_CMD, TX_BUFF_EN, 0);
+ } else if (ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, TX_DMA_EN)) {
+ while (bus->regs[R_I2CD_DMA_LEN]) {
uint8_t data;
aspeed_i2c_dma_read(bus, &data);
- trace_aspeed_i2c_bus_send("DMA", bus->dma_len, bus->dma_len, data);
+ trace_aspeed_i2c_bus_send("DMA", bus->regs[R_I2CD_DMA_LEN],
+ bus->regs[R_I2CD_DMA_LEN], data);
ret = i2c_send(bus->bus, data);
if (ret) {
break;
}
}
- bus->cmd = FIELD_DP32(bus->cmd, I2CD_CMD, TX_DMA_EN, 0);
+ ARRAY_FIELD_DP32(bus->regs, I2CD_CMD, TX_DMA_EN, 0);
} else {
- trace_aspeed_i2c_bus_send("BYTE", pool_start, 1, bus->buf);
- ret = i2c_send(bus->bus, bus->buf);
+ trace_aspeed_i2c_bus_send("BYTE", pool_start, 1,
+ bus->regs[R_I2CD_BYTE_BUF]);
+ ret = i2c_send(bus->bus, bus->regs[R_I2CD_BYTE_BUF]);
}
return ret;
@@ -292,9 +281,9 @@ static void aspeed_i2c_bus_recv(AspeedI2CBus *bus)
AspeedI2CClass *aic = ASPEED_I2C_GET_CLASS(s);
uint8_t data;
int i;
- int pool_rx_count = FIELD_EX32(bus->pool_ctrl, I2CD_POOL_CTRL, RX_COUNT);
+ int pool_rx_count = ARRAY_FIELD_EX32(bus->regs, I2CD_POOL_CTRL, RX_COUNT);
- if (FIELD_EX32(bus->cmd, I2CD_CMD, RX_BUFF_EN)) {
+ if (ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, RX_BUFF_EN)) {
uint8_t *pool_base = aic->bus_pool_base(bus);
for (i = 0; i < pool_rx_count; i++) {
@@ -304,32 +293,33 @@ static void aspeed_i2c_bus_recv(AspeedI2CBus *bus)
}
/* Update RX count */
- bus->pool_ctrl = FIELD_DP32(bus->pool_ctrl, I2CD_POOL_CTRL, RX_COUNT,
- i & 0xff);
- bus->cmd = FIELD_DP32(bus->cmd, I2CD_CMD, RX_BUFF_EN, 0);
- } else if (FIELD_EX32(bus->cmd, I2CD_CMD, RX_DMA_EN)) {
+ ARRAY_FIELD_DP32(bus->regs, I2CD_POOL_CTRL, RX_COUNT, i & 0xff);
+ ARRAY_FIELD_DP32(bus->regs, I2CD_CMD, RX_BUFF_EN, 0);
+ } else if (ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, RX_DMA_EN)) {
uint8_t data;
- while (bus->dma_len) {
+ while (bus->regs[R_I2CD_DMA_LEN]) {
MemTxResult result;
data = i2c_recv(bus->bus);
- trace_aspeed_i2c_bus_recv("DMA", bus->dma_len, bus->dma_len, data);
- result = address_space_write(&s->dram_as, bus->dma_addr,
+ trace_aspeed_i2c_bus_recv("DMA", bus->regs[R_I2CD_DMA_LEN],
+ bus->regs[R_I2CD_DMA_LEN], data);
+ result = address_space_write(&s->dram_as,
+ bus->regs[R_I2CD_DMA_ADDR],
MEMTXATTRS_UNSPECIFIED, &data, 1);
if (result != MEMTX_OK) {
qemu_log_mask(LOG_GUEST_ERROR, "%s: DRAM write failed @%08x\n",
- __func__, bus->dma_addr);
+ __func__, bus->regs[R_I2CD_DMA_ADDR]);
return;
}
- bus->dma_addr++;
- bus->dma_len--;
+ bus->regs[R_I2CD_DMA_ADDR]++;
+ bus->regs[R_I2CD_DMA_LEN]--;
}
- bus->cmd = FIELD_DP32(bus->cmd, I2CD_CMD, RX_DMA_EN, 0);
+ ARRAY_FIELD_DP32(bus->regs, I2CD_CMD, RX_DMA_EN, 0);
} else {
data = i2c_recv(bus->bus);
- trace_aspeed_i2c_bus_recv("BYTE", 1, 1, bus->buf);
- bus->buf = FIELD_DP32(bus->buf, I2CD_BYTE_BUF, RX_BUF, data);
+ trace_aspeed_i2c_bus_recv("BYTE", 1, 1, bus->regs[R_I2CD_BYTE_BUF]);
+ ARRAY_FIELD_DP32(bus->regs, I2CD_BYTE_BUF, RX_BUF, data);
}
}
@@ -337,12 +327,12 @@ static void aspeed_i2c_handle_rx_cmd(AspeedI2CBus *bus)
{
aspeed_i2c_set_state(bus, I2CD_MRXD);
aspeed_i2c_bus_recv(bus);
- bus->intr_status = FIELD_DP32(bus->intr_status, I2CD_INTR_STS, RX_DONE, 1);
- if (FIELD_EX32(bus->cmd, I2CD_CMD, M_S_RX_CMD_LAST)) {
+ ARRAY_FIELD_DP32(bus->regs, I2CD_INTR_STS, RX_DONE, 1);
+ if (ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, M_S_RX_CMD_LAST)) {
i2c_nack(bus->bus);
}
- bus->cmd = FIELD_DP32(bus->cmd, I2CD_CMD, M_RX_CMD, 0);
- bus->cmd = FIELD_DP32(bus->cmd, I2CD_CMD, M_S_RX_CMD_LAST, 0);
+ ARRAY_FIELD_DP32(bus->regs, I2CD_CMD, M_RX_CMD, 0);
+ ARRAY_FIELD_DP32(bus->regs, I2CD_CMD, M_S_RX_CMD_LAST, 0);
aspeed_i2c_set_state(bus, I2CD_MACTIVE);
}
@@ -350,17 +340,17 @@ static uint8_t aspeed_i2c_get_addr(AspeedI2CBus *bus)
{
AspeedI2CClass *aic = ASPEED_I2C_GET_CLASS(bus->controller);
- if (FIELD_EX32(bus->cmd, I2CD_CMD, TX_BUFF_EN)) {
+ if (ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, TX_BUFF_EN)) {
uint8_t *pool_base = aic->bus_pool_base(bus);
return pool_base[0];
- } else if (FIELD_EX32(bus->cmd, I2CD_CMD, TX_DMA_EN)) {
+ } else if (ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, TX_DMA_EN)) {
uint8_t data;
aspeed_i2c_dma_read(bus, &data);
return data;
} else {
- return bus->buf;
+ return bus->regs[R_I2CD_BYTE_BUF];
}
}
@@ -368,10 +358,10 @@ static bool aspeed_i2c_check_sram(AspeedI2CBus *bus)
{
AspeedI2CState *s = bus->controller;
AspeedI2CClass *aic = ASPEED_I2C_GET_CLASS(s);
- bool dma_en = FIELD_EX32(bus->cmd, I2CD_CMD, RX_DMA_EN) ||
- FIELD_EX32(bus->cmd, I2CD_CMD, TX_DMA_EN) ||
- FIELD_EX32(bus->cmd, I2CD_CMD, RX_BUFF_EN) ||
- FIELD_EX32(bus->cmd, I2CD_CMD, TX_BUFF_EN);
+ bool dma_en = ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, RX_DMA_EN) ||
+ ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, TX_DMA_EN) ||
+ ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, RX_BUFF_EN) ||
+ ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, TX_BUFF_EN);
if (!aic->check_sram) {
return true;
}
@@ -392,26 +382,27 @@ static void aspeed_i2c_bus_cmd_dump(AspeedI2CBus *bus)
{
g_autofree char *cmd_flags = NULL;
uint32_t count;
- if (FIELD_EX32(bus->cmd, I2CD_CMD, RX_BUFF_EN)) {
- count = FIELD_EX32(bus->pool_ctrl, I2CD_POOL_CTRL, TX_COUNT);
- } else if (FIELD_EX32(bus->cmd, I2CD_CMD, RX_DMA_EN)) {
- count = bus->dma_len;
+ if (ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, RX_BUFF_EN)) {
+ count = ARRAY_FIELD_EX32(bus->regs, I2CD_POOL_CTRL, TX_COUNT);
+ } else if (ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, RX_DMA_EN)) {
+ count = bus->regs[R_I2CD_DMA_LEN];
} else { /* BYTE mode */
count = 1;
}
cmd_flags = g_strdup_printf("%s%s%s%s%s%s%s%s%s",
- FIELD_EX32(bus->cmd, I2CD_CMD, M_START_CMD) ? "start|" : "",
- FIELD_EX32(bus->cmd, I2CD_CMD, RX_DMA_EN) ? "rxdma|" : "",
- FIELD_EX32(bus->cmd, I2CD_CMD, TX_DMA_EN) ? "txdma|" : "",
- FIELD_EX32(bus->cmd, I2CD_CMD, RX_BUFF_EN) ? "rxbuf|" : "",
- FIELD_EX32(bus->cmd, I2CD_CMD, TX_BUFF_EN) ? "txbuf|" : "",
- FIELD_EX32(bus->cmd, I2CD_CMD, M_TX_CMD) ? "tx|" : "",
- FIELD_EX32(bus->cmd, I2CD_CMD, M_RX_CMD) ? "rx|" : "",
- FIELD_EX32(bus->cmd, I2CD_CMD, M_S_RX_CMD_LAST) ? "last|" : "",
- FIELD_EX32(bus->cmd, I2CD_CMD, M_STOP_CMD) ? "stop" : "");
-
- trace_aspeed_i2c_bus_cmd(bus->cmd, cmd_flags, count, bus->intr_status);
+ ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, M_START_CMD) ? "start|" : "",
+ ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, RX_DMA_EN) ? "rxdma|" : "",
+ ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, TX_DMA_EN) ? "txdma|" : "",
+ ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, RX_BUFF_EN) ? "rxbuf|" : "",
+ ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, TX_BUFF_EN) ? "txbuf|" : "",
+ ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, M_TX_CMD) ? "tx|" : "",
+ ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, M_RX_CMD) ? "rx|" : "",
+ ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, M_S_RX_CMD_LAST) ? "last|" : "",
+ ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, M_STOP_CMD) ? "stop" : "");
+
+ trace_aspeed_i2c_bus_cmd(bus->regs[R_I2CD_CMD], cmd_flags, count,
+ bus->regs[R_I2CD_INTR_STS]);
}
/*
@@ -422,8 +413,8 @@ static void aspeed_i2c_bus_handle_cmd(AspeedI2CBus *bus, uint64_t value)
{
uint8_t pool_start = 0;
- bus->cmd &= ~0xFFFF;
- bus->cmd |= value & 0xFFFF;
+ bus->regs[R_I2CD_CMD] &= ~0xFFFF;
+ bus->regs[R_I2CD_CMD] |= value & 0xFFFF;
if (!aspeed_i2c_check_sram(bus)) {
return;
@@ -433,7 +424,7 @@ static void aspeed_i2c_bus_handle_cmd(AspeedI2CBus *bus, uint64_t value)
aspeed_i2c_bus_cmd_dump(bus);
}
- if (FIELD_EX32(bus->cmd, I2CD_CMD, M_START_CMD)) {
+ if (ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, M_START_CMD)) {
uint8_t state = aspeed_i2c_get_state(bus) & I2CD_MACTIVE ?
I2CD_MSTARTR : I2CD_MSTART;
uint8_t addr;
@@ -444,23 +435,21 @@ static void aspeed_i2c_bus_handle_cmd(AspeedI2CBus *bus, uint64_t value)
if (i2c_start_transfer(bus->bus, extract32(addr, 1, 7),
extract32(addr, 0, 1))) {
- bus->intr_status = FIELD_DP32(bus->intr_status, I2CD_INTR_STS,
- TX_NAK, 1);
+ ARRAY_FIELD_DP32(bus->regs, I2CD_INTR_STS, TX_NAK, 1);
} else {
- bus->intr_status = FIELD_DP32(bus->intr_status, I2CD_INTR_STS,
- TX_ACK, 1);
+ ARRAY_FIELD_DP32(bus->regs, I2CD_INTR_STS, TX_ACK, 1);
}
- bus->cmd = FIELD_DP32(bus->cmd, I2CD_CMD, M_START_CMD, 0);
+ ARRAY_FIELD_DP32(bus->regs, I2CD_CMD, M_START_CMD, 0);
/*
* The START command is also a TX command, as the slave
* address is sent on the bus. Drop the TX flag if nothing
* else needs to be sent in this sequence.
*/
- if (FIELD_EX32(bus->cmd, I2CD_CMD, TX_BUFF_EN)) {
- if (FIELD_EX32(bus->pool_ctrl, I2CD_POOL_CTRL, TX_COUNT) == 1) {
- bus->cmd = FIELD_DP32(bus->cmd, I2CD_CMD, M_TX_CMD, 0);
+ if (ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, TX_BUFF_EN)) {
+ if (ARRAY_FIELD_EX32(bus->regs, I2CD_POOL_CTRL, TX_COUNT) == 1) {
+ ARRAY_FIELD_DP32(bus->regs, I2CD_CMD, M_TX_CMD, 0);
} else {
/*
* Increase the start index in the TX pool buffer to
@@ -468,12 +457,12 @@ static void aspeed_i2c_bus_handle_cmd(AspeedI2CBus *bus, uint64_t value)
*/
pool_start++;
}
- } else if (FIELD_EX32(bus->cmd, I2CD_CMD, TX_DMA_EN)) {
- if (bus->dma_len == 0) {
- bus->cmd = FIELD_DP32(bus->cmd, I2CD_CMD, M_TX_CMD, 0);
+ } else if (ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, TX_DMA_EN)) {
+ if (bus->regs[R_I2CD_DMA_LEN] == 0) {
+ ARRAY_FIELD_DP32(bus->regs, I2CD_CMD, M_TX_CMD, 0);
}
} else {
- bus->cmd = FIELD_DP32(bus->cmd, I2CD_CMD, M_TX_CMD, 0);
+ ARRAY_FIELD_DP32(bus->regs, I2CD_CMD, M_TX_CMD, 0);
}
/* No slave found */
@@ -483,38 +472,34 @@ static void aspeed_i2c_bus_handle_cmd(AspeedI2CBus *bus, uint64_t value)
aspeed_i2c_set_state(bus, I2CD_MACTIVE);
}
- if (FIELD_EX32(bus->cmd, I2CD_CMD, M_TX_CMD)) {
+ if (ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, M_TX_CMD)) {
aspeed_i2c_set_state(bus, I2CD_MTXD);
if (aspeed_i2c_bus_send(bus, pool_start)) {
- bus->intr_status = FIELD_DP32(bus->intr_status, I2CD_INTR_STS,
- TX_NAK, 1);
+ ARRAY_FIELD_DP32(bus->regs, I2CD_INTR_STS, TX_NAK, 1);
i2c_end_transfer(bus->bus);
} else {
- bus->intr_status = FIELD_DP32(bus->intr_status, I2CD_INTR_STS,
- TX_ACK, 1);
+ ARRAY_FIELD_DP32(bus->regs, I2CD_INTR_STS, TX_ACK, 1);
}
- bus->cmd = FIELD_DP32(bus->cmd, I2CD_CMD, M_TX_CMD, 0);
+ ARRAY_FIELD_DP32(bus->regs, I2CD_CMD, M_TX_CMD, 0);
aspeed_i2c_set_state(bus, I2CD_MACTIVE);
}
- if ((FIELD_EX32(bus->cmd, I2CD_CMD, M_RX_CMD) ||
- FIELD_EX32(bus->cmd, I2CD_CMD, M_S_RX_CMD_LAST)) &&
- !FIELD_EX32(bus->intr_status, I2CD_INTR_STS, RX_DONE)) {
+ if ((ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, M_RX_CMD) ||
+ ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, M_S_RX_CMD_LAST)) &&
+ !ARRAY_FIELD_EX32(bus->regs, I2CD_INTR_STS, RX_DONE)) {
aspeed_i2c_handle_rx_cmd(bus);
}
- if (FIELD_EX32(bus->cmd, I2CD_CMD, M_STOP_CMD)) {
+ if (ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, M_STOP_CMD)) {
if (!(aspeed_i2c_get_state(bus) & I2CD_MACTIVE)) {
qemu_log_mask(LOG_GUEST_ERROR, "%s: abnormal stop\n", __func__);
- bus->intr_status = FIELD_DP32(bus->intr_status, I2CD_INTR_STS,
- ABNORMAL, 1);
+ ARRAY_FIELD_DP32(bus->regs, I2CD_INTR_STS, ABNORMAL, 1);
} else {
aspeed_i2c_set_state(bus, I2CD_MSTOP);
i2c_end_transfer(bus->bus);
- bus->intr_status = FIELD_DP32(bus->intr_status, I2CD_INTR_STS,
- NORMAL_STOP, 1);
+ ARRAY_FIELD_DP32(bus->regs, I2CD_INTR_STS, NORMAL_STOP, 1);
}
- bus->cmd = FIELD_DP32(bus->cmd, I2CD_CMD, M_STOP_CMD, 0);
+ ARRAY_FIELD_DP32(bus->regs, I2CD_CMD, M_STOP_CMD, 0);
aspeed_i2c_set_state(bus, I2CD_IDLE);
}
}
@@ -535,27 +520,27 @@ static void aspeed_i2c_bus_write(void *opaque, hwaddr offset,
__func__);
break;
}
- bus->ctrl = value & 0x0071C3FF;
+ bus->regs[R_I2CD_FUN_CTRL] = value & 0x0071C3FF;
break;
case A_I2CD_AC_TIMING1:
- bus->timing[0] = value & 0xFFFFF0F;
+ bus->regs[R_I2CD_AC_TIMING1] = value & 0xFFFFF0F;
break;
case A_I2CD_AC_TIMING2:
- bus->timing[1] = value & 0x7;
+ bus->regs[R_I2CD_AC_TIMING2] = value & 0x7;
break;
case A_I2CD_INTR_CTRL:
- bus->intr_ctrl = value & 0x7FFF;
+ bus->regs[R_I2CD_INTR_CTRL] = value & 0x7FFF;
break;
case A_I2CD_INTR_STS:
- handle_rx = FIELD_EX32(bus->intr_status, I2CD_INTR_STS, RX_DONE) &&
+ handle_rx = ARRAY_FIELD_EX32(bus->regs, I2CD_INTR_STS, RX_DONE) &&
FIELD_EX32(value, I2CD_INTR_STS, RX_DONE);
- bus->intr_status &= ~(value & 0x7FFF);
- if (!bus->intr_status) {
+ bus->regs[R_I2CD_INTR_STS] &= ~(value & 0x7FFF);
+ if (!bus->regs[R_I2CD_INTR_STS]) {
bus->controller->intr_status &= ~(1 << bus->id);
qemu_irq_lower(aic->bus_get_irq(bus));
}
- if (handle_rx && (FIELD_EX32(bus->cmd, I2CD_CMD, M_RX_CMD) ||
- FIELD_EX32(bus->cmd, I2CD_CMD, M_S_RX_CMD_LAST))) {
+ if (handle_rx && (ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, M_RX_CMD) ||
+ ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, M_S_RX_CMD_LAST))) {
aspeed_i2c_handle_rx_cmd(bus);
aspeed_i2c_bus_raise_interrupt(bus);
}
@@ -565,12 +550,12 @@ static void aspeed_i2c_bus_write(void *opaque, hwaddr offset,
__func__);
break;
case A_I2CD_POOL_CTRL:
- bus->pool_ctrl &= ~0xffffff;
- bus->pool_ctrl |= (value & 0xffffff);
+ bus->regs[R_I2CD_POOL_CTRL] &= ~0xffffff;
+ bus->regs[R_I2CD_POOL_CTRL] |= (value & 0xffffff);
break;
case A_I2CD_BYTE_BUF:
- bus->buf = FIELD_DP32(bus->buf, I2CD_BYTE_BUF, TX_BUF, value);
+ ARRAY_FIELD_DP32(bus->regs, I2CD_BYTE_BUF, TX_BUF, value);
break;
case A_I2CD_CMD:
if (!aspeed_i2c_bus_is_enabled(bus)) {
@@ -599,7 +584,7 @@ static void aspeed_i2c_bus_write(void *opaque, hwaddr offset,
break;
}
- bus->dma_addr = value & 0x3ffffffc;
+ bus->regs[R_I2CD_DMA_ADDR] = value & 0x3ffffffc;
break;
case A_I2CD_DMA_LEN:
@@ -608,8 +593,8 @@ static void aspeed_i2c_bus_write(void *opaque, hwaddr offset,
break;
}
- bus->dma_len = value & 0xfff;
- if (!bus->dma_len) {
+ bus->regs[R_I2CD_DMA_LEN] = value & 0xfff;
+ if (!bus->regs[R_I2CD_DMA_LEN]) {
qemu_log_mask(LOG_UNIMP, "%s: invalid DMA length\n", __func__);
}
break;
@@ -705,19 +690,10 @@ static const MemoryRegionOps aspeed_i2c_pool_ops = {
static const VMStateDescription aspeed_i2c_bus_vmstate = {
.name = TYPE_ASPEED_I2C,
- .version_id = 3,
- .minimum_version_id = 3,
+ .version_id = 4,
+ .minimum_version_id = 4,
.fields = (VMStateField[]) {
- VMSTATE_UINT8(id, AspeedI2CBus),
- VMSTATE_UINT32(ctrl, AspeedI2CBus),
- VMSTATE_UINT32_ARRAY(timing, AspeedI2CBus, 2),
- VMSTATE_UINT32(intr_ctrl, AspeedI2CBus),
- VMSTATE_UINT32(intr_status, AspeedI2CBus),
- VMSTATE_UINT32(cmd, AspeedI2CBus),
- VMSTATE_UINT32(buf, AspeedI2CBus),
- VMSTATE_UINT32(pool_ctrl, AspeedI2CBus),
- VMSTATE_UINT32(dma_addr, AspeedI2CBus),
- VMSTATE_UINT32(dma_len, AspeedI2CBus),
+ VMSTATE_UINT32_ARRAY(regs, AspeedI2CBus, ASPEED_I2C_OLD_NUM_REG),
VMSTATE_END_OF_LIST()
}
};
@@ -854,12 +830,7 @@ static void aspeed_i2c_bus_reset(DeviceState *dev)
{
AspeedI2CBus *s = ASPEED_I2C_BUS(dev);
- s->intr_ctrl = 0;
- s->intr_status = 0;
- s->cmd = 0;
- s->buf = 0;
- s->dma_addr = 0;
- s->dma_len = 0;
+ memset(s->regs, 0, sizeof(s->regs));
i2c_end_transfer(s->bus);
}
@@ -917,10 +888,10 @@ static qemu_irq aspeed_2400_i2c_bus_get_irq(AspeedI2CBus *bus)
static uint8_t *aspeed_2400_i2c_bus_pool_base(AspeedI2CBus *bus)
{
uint8_t *pool_page =
- &bus->controller->pool[FIELD_EX32(bus->ctrl, I2CD_FUN_CTRL,
- POOL_PAGE_SEL) * 0x100];
+ &bus->controller->pool[ARRAY_FIELD_EX32(bus->regs, I2CD_FUN_CTRL,
+ POOL_PAGE_SEL) * 0x100];
- return &pool_page[FIELD_EX32(bus->pool_ctrl, I2CD_POOL_CTRL, OFFSET)];
+ return &pool_page[ARRAY_FIELD_EX32(bus->regs, I2CD_POOL_CTRL, OFFSET)];
}
static void aspeed_2400_i2c_class_init(ObjectClass *klass, void *data)
--
2.35.3
^ permalink raw reply related [flat|nested] 18+ messages in thread* [PATCH v2 10/17] aspeed: i2c: Add new mode support
2022-06-13 13:25 [PATCH v2 00/17] aspeed: Extend ast2600 I2C model with new mode Cédric Le Goater
` (8 preceding siblings ...)
2022-06-13 13:25 ` [PATCH v2 09/17] aspeed: i2c: Use reg array instead of individual vars Cédric Le Goater
@ 2022-06-13 13:25 ` Cédric Le Goater
2022-06-13 13:25 ` [PATCH v2 11/17] aspeed: i2c: Add PKT_DONE IRQ to trace Cédric Le Goater
` (6 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: Cédric Le Goater @ 2022-06-13 13:25 UTC (permalink / raw)
To: qemu-arm, qemu-devel
Cc: Peter Maydell, Joe Komlodi, Troy Lee, Jamin Lin, Steven Lee,
Klaus Jensen, Peter Delevoryas, Corey Minyard, Jonathan Cameron,
Damien Hedde, Andrew Jeffery, Joel Stanley, Cleber Rosa,
Philippe Mathieu-Daudé, Wainer dos Santos Moschetta,
Beraldo Leal, Cédric Le Goater
From: Joe Komlodi <komlodi@google.com>
On AST2600, I2C has a secondary mode, called "new mode", which changes
the layout of registers, adds some minor behavior changes, and
introduces a new way to transfer data called "packet mode".
Most of the bit positions of the fields are the same between old and new
mode, so we use SHARED_FIELD_XX macros to reuse most of the code between
the different modes.
For packet mode, most of the command behavior is the same compared to
other modes, but there are some minor changes to how interrupts are
handled compared to other modes.
Signed-off-by: Joe Komlodi <komlodi@google.com>
Change-Id: I072f8301964f623afc74af1fe50c12e5caef199e
Message-Id: <20220331043248.2237838-6-komlodi@google.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
include/hw/i2c/aspeed_i2c.h | 4 +-
hw/i2c/aspeed_i2c.c | 844 +++++++++++++++++++++++++++---------
2 files changed, 653 insertions(+), 195 deletions(-)
diff --git a/include/hw/i2c/aspeed_i2c.h b/include/hw/i2c/aspeed_i2c.h
index 8abb013d219c..8297b190a9d2 100644
--- a/include/hw/i2c/aspeed_i2c.h
+++ b/include/hw/i2c/aspeed_i2c.h
@@ -34,6 +34,7 @@ OBJECT_DECLARE_TYPE(AspeedI2CState, AspeedI2CClass, ASPEED_I2C)
#define ASPEED_I2C_NR_BUSSES 16
#define ASPEED_I2C_MAX_POOL_SIZE 0x800
#define ASPEED_I2C_OLD_NUM_REG 11
+#define ASPEED_I2C_NEW_NUM_REG 22
struct AspeedI2CState;
@@ -50,7 +51,7 @@ struct AspeedI2CBus {
uint8_t id;
qemu_irq irq;
- uint32_t regs[ASPEED_I2C_OLD_NUM_REG];
+ uint32_t regs[ASPEED_I2C_NEW_NUM_REG];
};
struct AspeedI2CState {
@@ -61,6 +62,7 @@ struct AspeedI2CState {
uint32_t intr_status;
uint32_t ctrl_global;
+ uint32_t new_clk_divider;
MemoryRegion pool_iomem;
uint8_t pool[ASPEED_I2C_MAX_POOL_SIZE];
diff --git a/hw/i2c/aspeed_i2c.c b/hw/i2c/aspeed_i2c.c
index d13866908451..8b6a88315a5b 100644
--- a/hw/i2c/aspeed_i2c.c
+++ b/hw/i2c/aspeed_i2c.c
@@ -31,141 +31,302 @@
#include "hw/registerfields.h"
#include "trace.h"
+/* Tx State Machine */
+#define I2CD_TX_STATE_MASK 0xf
+#define I2CD_IDLE 0x0
+#define I2CD_MACTIVE 0x8
+#define I2CD_MSTART 0x9
+#define I2CD_MSTARTR 0xa
+#define I2CD_MSTOP 0xb
+#define I2CD_MTXD 0xc
+#define I2CD_MRXACK 0xd
+#define I2CD_MRXD 0xe
+#define I2CD_MTXACK 0xf
+#define I2CD_SWAIT 0x1
+#define I2CD_SRXD 0x4
+#define I2CD_STXACK 0x5
+#define I2CD_STXD 0x6
+#define I2CD_SRXACK 0x7
+#define I2CD_RECOVER 0x3
+
/* I2C Global Register */
REG32(I2C_CTRL_STATUS, 0x0) /* Device Interrupt Status */
REG32(I2C_CTRL_ASSIGN, 0x8) /* Device Interrupt Target Assignment */
REG32(I2C_CTRL_GLOBAL, 0xC) /* Global Control Register */
+ FIELD(I2C_CTRL_GLOBAL, REG_MODE, 2, 1)
FIELD(I2C_CTRL_GLOBAL, SRAM_EN, 0, 1)
+REG32(I2C_CTRL_NEW_CLK_DIVIDER, 0x10) /* New mode clock divider */
-/* I2C Device (Bus) Register */
+/* I2C Old Mode Device (Bus) Register */
REG32(I2CD_FUN_CTRL, 0x0) /* I2CD Function Control */
FIELD(I2CD_FUN_CTRL, POOL_PAGE_SEL, 20, 3) /* AST2400 */
- FIELD(I2CD_FUN_CTRL, M_SDA_LOCK_EN, 16, 1)
- FIELD(I2CD_FUN_CTRL, MULTI_MASTER_DIS, 15, 1)
- FIELD(I2CD_FUN_CTRL, M_SCL_DRIVE_EN, 14, 1)
- FIELD(I2CD_FUN_CTRL, MSB_STS, 9, 1)
- FIELD(I2CD_FUN_CTRL, SDA_DRIVE_IT_EN, 8, 1)
- FIELD(I2CD_FUN_CTRL, M_SDA_DRIVE_IT_EN, 7, 1)
- FIELD(I2CD_FUN_CTRL, M_HIGH_SPEED_EN, 6, 1)
- FIELD(I2CD_FUN_CTRL, DEF_ADDR_EN, 5, 1)
- FIELD(I2CD_FUN_CTRL, DEF_ALERT_EN, 4, 1)
- FIELD(I2CD_FUN_CTRL, DEF_ARP_EN, 3, 1)
- FIELD(I2CD_FUN_CTRL, DEF_GCALL_EN, 2, 1)
- FIELD(I2CD_FUN_CTRL, SLAVE_EN, 1, 1)
- FIELD(I2CD_FUN_CTRL, MASTER_EN, 0, 1)
+ SHARED_FIELD(M_SDA_LOCK_EN, 16, 1)
+ SHARED_FIELD(MULTI_MASTER_DIS, 15, 1)
+ SHARED_FIELD(M_SCL_DRIVE_EN, 14, 1)
+ SHARED_FIELD(MSB_STS, 9, 1)
+ SHARED_FIELD(SDA_DRIVE_IT_EN, 8, 1)
+ SHARED_FIELD(M_SDA_DRIVE_IT_EN, 7, 1)
+ SHARED_FIELD(M_HIGH_SPEED_EN, 6, 1)
+ SHARED_FIELD(DEF_ADDR_EN, 5, 1)
+ SHARED_FIELD(DEF_ALERT_EN, 4, 1)
+ SHARED_FIELD(DEF_ARP_EN, 3, 1)
+ SHARED_FIELD(DEF_GCALL_EN, 2, 1)
+ SHARED_FIELD(SLAVE_EN, 1, 1)
+ SHARED_FIELD(MASTER_EN, 0, 1)
REG32(I2CD_AC_TIMING1, 0x04) /* Clock and AC Timing Control #1 */
REG32(I2CD_AC_TIMING2, 0x08) /* Clock and AC Timing Control #2 */
REG32(I2CD_INTR_CTRL, 0x0C) /* I2CD Interrupt Control */
REG32(I2CD_INTR_STS, 0x10) /* I2CD Interrupt Status */
- FIELD(I2CD_INTR_STS, SLAVE_ADDR_MATCH, 31, 1) /* 0: addr1 1: addr2 */
- FIELD(I2CD_INTR_STS, SLAVE_ADDR_RX_PENDING, 29, 1)
- FIELD(I2CD_INTR_STS, SLAVE_INACTIVE_TIMEOUT, 15, 1)
- FIELD(I2CD_INTR_STS, SDA_DL_TIMEOUT, 14, 1)
- FIELD(I2CD_INTR_STS, BUS_RECOVER_DONE, 13, 1)
- FIELD(I2CD_INTR_STS, SMBUS_ALERT, 12, 1) /* Bus [0-3] only */
+ SHARED_FIELD(SLAVE_ADDR_MATCH, 31, 1) /* 0: addr1 1: addr2 */
+ SHARED_FIELD(SLAVE_ADDR_RX_PENDING, 29, 1)
+ SHARED_FIELD(SLAVE_INACTIVE_TIMEOUT, 15, 1)
+ SHARED_FIELD(SDA_DL_TIMEOUT, 14, 1)
+ SHARED_FIELD(BUS_RECOVER_DONE, 13, 1)
+ SHARED_FIELD(SMBUS_ALERT, 12, 1) /* Bus [0-3] only */
FIELD(I2CD_INTR_STS, SMBUS_ARP_ADDR, 11, 1) /* Removed */
FIELD(I2CD_INTR_STS, SMBUS_DEV_ALERT_ADDR, 10, 1) /* Removed */
FIELD(I2CD_INTR_STS, SMBUS_DEF_ADDR, 9, 1) /* Removed */
FIELD(I2CD_INTR_STS, GCALL_ADDR, 8, 1) /* Removed */
FIELD(I2CD_INTR_STS, SLAVE_ADDR_RX_MATCH, 7, 1) /* use RX_DONE */
- FIELD(I2CD_INTR_STS, SCL_TIMEOUT, 6, 1)
- FIELD(I2CD_INTR_STS, ABNORMAL, 5, 1)
- FIELD(I2CD_INTR_STS, NORMAL_STOP, 4, 1)
- FIELD(I2CD_INTR_STS, ARBIT_LOSS, 3, 1)
- FIELD(I2CD_INTR_STS, RX_DONE, 2, 1)
- FIELD(I2CD_INTR_STS, TX_NAK, 1, 1)
- FIELD(I2CD_INTR_STS, TX_ACK, 0, 1)
+ SHARED_FIELD(SCL_TIMEOUT, 6, 1)
+ SHARED_FIELD(ABNORMAL, 5, 1)
+ SHARED_FIELD(NORMAL_STOP, 4, 1)
+ SHARED_FIELD(ARBIT_LOSS, 3, 1)
+ SHARED_FIELD(RX_DONE, 2, 1)
+ SHARED_FIELD(TX_NAK, 1, 1)
+ SHARED_FIELD(TX_ACK, 0, 1)
REG32(I2CD_CMD, 0x14) /* I2CD Command/Status */
- FIELD(I2CD_CMD, SDA_OE, 28, 1)
- FIELD(I2CD_CMD, SDA_O, 27, 1)
- FIELD(I2CD_CMD, SCL_OE, 26, 1)
- FIELD(I2CD_CMD, SCL_O, 25, 1)
- FIELD(I2CD_CMD, TX_TIMING, 23, 2)
- FIELD(I2CD_CMD, TX_STATE, 19, 4)
-/* Tx State Machine */
-#define I2CD_TX_STATE_MASK 0xf
-#define I2CD_IDLE 0x0
-#define I2CD_MACTIVE 0x8
-#define I2CD_MSTART 0x9
-#define I2CD_MSTARTR 0xa
-#define I2CD_MSTOP 0xb
-#define I2CD_MTXD 0xc
-#define I2CD_MRXACK 0xd
-#define I2CD_MRXD 0xe
-#define I2CD_MTXACK 0xf
-#define I2CD_SWAIT 0x1
-#define I2CD_SRXD 0x4
-#define I2CD_STXACK 0x5
-#define I2CD_STXD 0x6
-#define I2CD_SRXACK 0x7
-#define I2CD_RECOVER 0x3
- FIELD(I2CD_CMD, SCL_LINE_STS, 18, 1)
- FIELD(I2CD_CMD, SDA_LINE_STS, 17, 1)
- FIELD(I2CD_CMD, BUS_BUSY_STS, 16, 1)
- FIELD(I2CD_CMD, SDA_OE_OUT_DIR, 15, 1)
- FIELD(I2CD_CMD, SDA_O_OUT_DIR, 14, 1)
- FIELD(I2CD_CMD, SCL_OE_OUT_DIR, 13, 1)
- FIELD(I2CD_CMD, SCL_O_OUT_DIR, 12, 1)
- FIELD(I2CD_CMD, BUS_RECOVER_CMD_EN, 11, 1)
- FIELD(I2CD_CMD, S_ALT_EN, 10, 1)
+ SHARED_FIELD(SDA_OE, 28, 1)
+ SHARED_FIELD(SDA_O, 27, 1)
+ SHARED_FIELD(SCL_OE, 26, 1)
+ SHARED_FIELD(SCL_O, 25, 1)
+ SHARED_FIELD(TX_TIMING, 23, 2)
+ SHARED_FIELD(TX_STATE, 19, 4)
+ SHARED_FIELD(SCL_LINE_STS, 18, 1)
+ SHARED_FIELD(SDA_LINE_STS, 17, 1)
+ SHARED_FIELD(BUS_BUSY_STS, 16, 1)
+ SHARED_FIELD(SDA_OE_OUT_DIR, 15, 1)
+ SHARED_FIELD(SDA_O_OUT_DIR, 14, 1)
+ SHARED_FIELD(SCL_OE_OUT_DIR, 13, 1)
+ SHARED_FIELD(SCL_O_OUT_DIR, 12, 1)
+ SHARED_FIELD(BUS_RECOVER_CMD_EN, 11, 1)
+ SHARED_FIELD(S_ALT_EN, 10, 1)
/* Command Bits */
- FIELD(I2CD_CMD, RX_DMA_EN, 9, 1)
- FIELD(I2CD_CMD, TX_DMA_EN, 8, 1)
- FIELD(I2CD_CMD, RX_BUFF_EN, 7, 1)
- FIELD(I2CD_CMD, TX_BUFF_EN, 6, 1)
- FIELD(I2CD_CMD, M_STOP_CMD, 5, 1)
- FIELD(I2CD_CMD, M_S_RX_CMD_LAST, 4, 1)
- FIELD(I2CD_CMD, M_RX_CMD, 3, 1)
- FIELD(I2CD_CMD, S_TX_CMD, 2, 1)
- FIELD(I2CD_CMD, M_TX_CMD, 1, 1)
- FIELD(I2CD_CMD, M_START_CMD, 0, 1)
+ SHARED_FIELD(RX_DMA_EN, 9, 1)
+ SHARED_FIELD(TX_DMA_EN, 8, 1)
+ SHARED_FIELD(RX_BUFF_EN, 7, 1)
+ SHARED_FIELD(TX_BUFF_EN, 6, 1)
+ SHARED_FIELD(M_STOP_CMD, 5, 1)
+ SHARED_FIELD(M_S_RX_CMD_LAST, 4, 1)
+ SHARED_FIELD(M_RX_CMD, 3, 1)
+ SHARED_FIELD(S_TX_CMD, 2, 1)
+ SHARED_FIELD(M_TX_CMD, 1, 1)
+ SHARED_FIELD(M_START_CMD, 0, 1)
REG32(I2CD_DEV_ADDR, 0x18) /* Slave Device Address */
REG32(I2CD_POOL_CTRL, 0x1C) /* Pool Buffer Control */
- FIELD(I2CD_POOL_CTRL, RX_COUNT, 24, 5)
- FIELD(I2CD_POOL_CTRL, RX_SIZE, 16, 5)
- FIELD(I2CD_POOL_CTRL, TX_COUNT, 9, 5)
+ SHARED_FIELD(RX_COUNT, 24, 5)
+ SHARED_FIELD(RX_SIZE, 16, 5)
+ SHARED_FIELD(TX_COUNT, 9, 5)
FIELD(I2CD_POOL_CTRL, OFFSET, 2, 6) /* AST2400 */
REG32(I2CD_BYTE_BUF, 0x20) /* Transmit/Receive Byte Buffer */
- FIELD(I2CD_BYTE_BUF, RX_BUF, 8, 8)
- FIELD(I2CD_BYTE_BUF, TX_BUF, 0, 8)
+ SHARED_FIELD(RX_BUF, 8, 8)
+ SHARED_FIELD(TX_BUF, 0, 8)
REG32(I2CD_DMA_ADDR, 0x24) /* DMA Buffer Address */
REG32(I2CD_DMA_LEN, 0x28) /* DMA Transfer Length < 4KB */
+/* I2C New Mode Device (Bus) Register */
+REG32(I2CC_FUN_CTRL, 0x0)
+ FIELD(I2CC_FUN_CTRL, RB_EARLY_DONE_EN, 22, 1)
+ FIELD(I2CC_FUN_CTRL, DMA_DIS_AUTO_RECOVER, 21, 1)
+ FIELD(I2CC_FUN_CTRL, S_SAVE_ADDR, 20, 1)
+ FIELD(I2CC_FUN_CTRL, M_PKT_RETRY_CNT, 18, 2)
+ /* 17:0 shared with I2CD_FUN_CTRL[17:0] */
+REG32(I2CC_AC_TIMING, 0x04)
+REG32(I2CC_MS_TXRX_BYTE_BUF, 0x08)
+ /* 31:16 shared with I2CD_CMD[31:16] */
+ /* 15:0 shared with I2CD_BYTE_BUF[15:0] */
+REG32(I2CC_POOL_CTRL, 0x0c)
+ /* 31:0 shared with I2CD_POOL_CTRL[31:0] */
+REG32(I2CM_INTR_CTRL, 0x10)
+REG32(I2CM_INTR_STS, 0x14)
+ FIELD(I2CM_INTR_STS, PKT_STATE, 28, 4)
+ FIELD(I2CM_INTR_STS, PKT_CMD_TIMEOUT, 18, 1)
+ FIELD(I2CM_INTR_STS, PKT_CMD_FAIL, 17, 1)
+ FIELD(I2CM_INTR_STS, PKT_CMD_DONE, 16, 1)
+ FIELD(I2CM_INTR_STS, BUS_RECOVER_FAIL, 15, 1)
+ /* 14:0 shared with I2CD_INTR_STS[14:0] */
+REG32(I2CM_CMD, 0x18)
+ FIELD(I2CM_CMD, W1_CTRL, 31, 1)
+ FIELD(I2CM_CMD, PKT_DEV_ADDR, 24, 7)
+ FIELD(I2CM_CMD, HS_MASTER_MODE_LSB, 17, 3)
+ FIELD(I2CM_CMD, PKT_OP_EN, 16, 1)
+ /* 15:0 shared with I2CD_CMD[15:0] */
+REG32(I2CM_DMA_LEN, 0x1c)
+ FIELD(I2CM_DMA_LEN, RX_BUF_LEN_W1T, 31, 1)
+ FIELD(I2CM_DMA_LEN, RX_BUF_LEN, 16, 11)
+ FIELD(I2CM_DMA_LEN, TX_BUF_LEN_W1T, 15, 1)
+ FIELD(I2CM_DMA_LEN, TX_BUF_LEN, 0, 11)
+REG32(I2CS_INTR_CTRL, 0x20)
+REG32(I2CS_INTR_STS, 0x24)
+ /* 31:29 shared with I2CD_INTR_STS[31:29] */
+ FIELD(I2CS_INTR_STS, SLAVE_PARKING_STS, 24, 2)
+ FIELD(I2CS_INTR_STS, SLAVE_ADDR3_NAK, 22, 1)
+ FIELD(I2CS_INTR_STS, SLAVE_ADDR2_NAK, 21, 1)
+ FIELD(I2CS_INTR_STS, SLAVE_ADDR1_NAK, 20, 1)
+ FIELD(I2CS_INTR_STS, SLAVE_ADDR_INDICATOR, 18, 2)
+ FIELD(I2CS_INTR_STS, PKT_CMD_FAIL, 17, 1)
+ FIELD(I2CS_INTR_STS, PKT_CMD_DONE, 16, 1)
+ /* 14:0 shared with I2CD_INTR_STS[14:0] */
+REG32(I2CS_CMD, 0x28)
+ FIELD(I2CS_CMD, W1_CTRL, 31, 1)
+ FIELD(I2CS_CMD, PKT_MODE_ACTIVE_ADDR, 17, 2)
+ FIELD(I2CS_CMD, PKT_MODE_EN, 16, 1)
+ FIELD(I2CS_CMD, AUTO_NAK_INACTIVE_ADDR, 15, 1)
+ FIELD(I2CS_CMD, AUTO_NAK_ACTIVE_ADDR, 14, 1)
+ /* 13:0 shared with I2CD_CMD[13:0] */
+REG32(I2CS_DMA_LEN, 0x2c)
+ FIELD(I2CS_DMA_LEN, RX_BUF_LEN_W1T, 31, 1)
+ FIELD(I2CS_DMA_LEN, RX_BUF_LEN, 16, 11)
+ FIELD(I2CS_DMA_LEN, TX_BUF_LEN_W1T, 15, 1)
+ FIELD(I2CS_DMA_LEN, TX_BUF_LEN, 0, 11)
+REG32(I2CM_DMA_TX_ADDR, 0x30)
+ FIELD(I2CM_DMA_TX_ADDR, ADDR, 0, 31)
+REG32(I2CM_DMA_RX_ADDR, 0x34)
+ FIELD(I2CM_DMA_RX_ADDR, ADDR, 0, 31)
+REG32(I2CS_DMA_TX_ADDR, 0x38)
+ FIELD(I2CS_DMA_TX_ADDR, ADDR, 0, 31)
+REG32(I2CS_DMA_RX_ADDR, 0x3c)
+ FIELD(I2CS_DMA_RX_ADDR, ADDR, 0, 31)
+REG32(I2CS_DEV_ADDR, 0x40)
+REG32(I2CM_DMA_LEN_STS, 0x48)
+ FIELD(I2CM_DMA_LEN_STS, RX_LEN, 16, 13)
+ FIELD(I2CM_DMA_LEN_STS, TX_LEN, 0, 13)
+REG32(I2CS_DMA_LEN_STS, 0x4c)
+ FIELD(I2CS_DMA_LEN_STS, RX_LEN, 16, 13)
+ FIELD(I2CS_DMA_LEN_STS, TX_LEN, 0, 13)
+REG32(I2CC_DMA_ADDR, 0x50)
+REG32(I2CC_DMA_LEN, 0x54)
+
+static inline bool aspeed_i2c_is_new_mode(AspeedI2CState *s)
+{
+ return FIELD_EX32(s->ctrl_global, I2C_CTRL_GLOBAL, REG_MODE);
+}
+
+static inline bool aspeed_i2c_bus_pkt_mode_en(AspeedI2CBus *bus)
+{
+ if (aspeed_i2c_is_new_mode(bus->controller)) {
+ return ARRAY_FIELD_EX32(bus->regs, I2CM_CMD, PKT_OP_EN);
+ }
+ return false;
+}
+
+static inline uint32_t aspeed_i2c_bus_ctrl_offset(AspeedI2CBus *bus)
+{
+ if (aspeed_i2c_is_new_mode(bus->controller)) {
+ return R_I2CC_FUN_CTRL;
+ }
+ return R_I2CD_FUN_CTRL;
+}
+
+static inline uint32_t aspeed_i2c_bus_cmd_offset(AspeedI2CBus *bus)
+{
+ if (aspeed_i2c_is_new_mode(bus->controller)) {
+ return R_I2CM_CMD;
+ }
+ return R_I2CD_CMD;
+}
+
+static inline uint32_t aspeed_i2c_bus_intr_ctrl_offset(AspeedI2CBus *bus)
+{
+ if (aspeed_i2c_is_new_mode(bus->controller)) {
+ return R_I2CM_INTR_CTRL;
+ }
+ return R_I2CD_INTR_CTRL;
+}
+
+static inline uint32_t aspeed_i2c_bus_intr_sts_offset(AspeedI2CBus *bus)
+{
+ if (aspeed_i2c_is_new_mode(bus->controller)) {
+ return R_I2CM_INTR_STS;
+ }
+ return R_I2CD_INTR_STS;
+}
+
+static inline uint32_t aspeed_i2c_bus_pool_ctrl_offset(AspeedI2CBus *bus)
+{
+ if (aspeed_i2c_is_new_mode(bus->controller)) {
+ return R_I2CC_POOL_CTRL;
+ }
+ return R_I2CD_POOL_CTRL;
+}
+
+static inline uint32_t aspeed_i2c_bus_byte_buf_offset(AspeedI2CBus *bus)
+{
+ if (aspeed_i2c_is_new_mode(bus->controller)) {
+ return R_I2CC_MS_TXRX_BYTE_BUF;
+ }
+ return R_I2CD_BYTE_BUF;
+}
+
+static inline uint32_t aspeed_i2c_bus_dma_len_offset(AspeedI2CBus *bus)
+{
+ if (aspeed_i2c_is_new_mode(bus->controller)) {
+ return R_I2CC_DMA_LEN;
+ }
+ return R_I2CD_DMA_LEN;
+}
+
+static inline uint32_t aspeed_i2c_bus_dma_addr_offset(AspeedI2CBus *bus)
+{
+ if (aspeed_i2c_is_new_mode(bus->controller)) {
+ return R_I2CC_DMA_ADDR;
+ }
+ return R_I2CD_DMA_ADDR;
+}
+
static inline bool aspeed_i2c_bus_is_master(AspeedI2CBus *bus)
{
- return ARRAY_FIELD_EX32(bus->regs, I2CD_FUN_CTRL, MASTER_EN);
+ return SHARED_ARRAY_FIELD_EX32(bus->regs, aspeed_i2c_bus_ctrl_offset(bus),
+ MASTER_EN);
}
static inline bool aspeed_i2c_bus_is_enabled(AspeedI2CBus *bus)
{
- return ARRAY_FIELD_EX32(bus->regs, I2CD_FUN_CTRL, MASTER_EN) ||
- ARRAY_FIELD_EX32(bus->regs, I2CD_FUN_CTRL, SLAVE_EN);
+ uint32_t ctrl_reg = aspeed_i2c_bus_ctrl_offset(bus);
+ return SHARED_ARRAY_FIELD_EX32(bus->regs, ctrl_reg, MASTER_EN) ||
+ SHARED_ARRAY_FIELD_EX32(bus->regs, ctrl_reg, SLAVE_EN);
}
static inline void aspeed_i2c_bus_raise_interrupt(AspeedI2CBus *bus)
{
AspeedI2CClass *aic = ASPEED_I2C_GET_CLASS(bus->controller);
-
- trace_aspeed_i2c_bus_raise_interrupt(bus->regs[R_I2CD_INTR_STS],
- ARRAY_FIELD_EX32(bus->regs, I2CD_INTR_STS, TX_NAK) ? "nak|" : "",
- ARRAY_FIELD_EX32(bus->regs, I2CD_INTR_STS, TX_ACK) ? "ack|" : "",
- ARRAY_FIELD_EX32(bus->regs, I2CD_INTR_STS, RX_DONE) ? "done|" : "",
- ARRAY_FIELD_EX32(bus->regs, I2CD_INTR_STS, NORMAL_STOP) ? "normal|"
+ uint32_t reg_intr_sts = aspeed_i2c_bus_intr_sts_offset(bus);
+ uint32_t intr_ctrl_reg = aspeed_i2c_bus_intr_ctrl_offset(bus);
+ bool raise_irq;
+
+ trace_aspeed_i2c_bus_raise_interrupt(bus->regs[reg_intr_sts],
+ SHARED_ARRAY_FIELD_EX32(bus->regs, reg_intr_sts, TX_NAK) ? "nak|" : "",
+ SHARED_ARRAY_FIELD_EX32(bus->regs, reg_intr_sts, TX_ACK) ? "ack|" : "",
+ SHARED_ARRAY_FIELD_EX32(bus->regs, reg_intr_sts, RX_DONE) ? "done|"
: "",
- ARRAY_FIELD_EX32(bus->regs, I2CD_INTR_STS, ABNORMAL) ? "abnormal"
- : "");
-
- bus->regs[R_I2CD_INTR_STS] &= bus->regs[R_I2CD_INTR_CTRL];
- if (bus->regs[R_I2CD_INTR_STS]) {
+ SHARED_ARRAY_FIELD_EX32(bus->regs, reg_intr_sts, NORMAL_STOP) ?
+ "normal|" : "",
+ SHARED_ARRAY_FIELD_EX32(bus->regs, reg_intr_sts, ABNORMAL) ? "abnormal"
+ : "");
+ raise_irq = bus->regs[reg_intr_sts] & bus->regs[intr_ctrl_reg];
+ /* In packet mode we don't mask off INTR_STS */
+ if (!aspeed_i2c_bus_pkt_mode_en(bus)) {
+ bus->regs[reg_intr_sts] &= bus->regs[intr_ctrl_reg];
+ }
+ if (raise_irq) {
bus->controller->intr_status |= 1 << bus->id;
qemu_irq_raise(aic->bus_get_irq(bus));
}
}
-static uint64_t aspeed_i2c_bus_read(void *opaque, hwaddr offset,
- unsigned size)
+static uint64_t aspeed_i2c_bus_old_read(AspeedI2CBus *bus, hwaddr offset,
+ unsigned size)
{
- AspeedI2CBus *bus = opaque;
AspeedI2CClass *aic = ASPEED_I2C_GET_CLASS(bus->controller);
uint64_t value = bus->regs[offset / sizeof(*bus->regs)];
@@ -180,8 +341,7 @@ static uint64_t aspeed_i2c_bus_read(void *opaque, hwaddr offset,
/* Value is already set, don't do anything. */
break;
case A_I2CD_CMD:
- value = FIELD_DP32(value, I2CD_CMD, BUS_BUSY_STS,
- i2c_bus_busy(bus->bus));
+ value = SHARED_FIELD_DP32(value, BUS_BUSY_STS, i2c_bus_busy(bus->bus));
break;
case A_I2CD_DMA_ADDR:
if (!aic->has_dma) {
@@ -207,31 +367,86 @@ static uint64_t aspeed_i2c_bus_read(void *opaque, hwaddr offset,
return value;
}
+static uint64_t aspeed_i2c_bus_new_read(AspeedI2CBus *bus, hwaddr offset,
+ unsigned size)
+{
+ uint64_t value = bus->regs[offset / sizeof(*bus->regs)];
+
+ switch (offset) {
+ case A_I2CC_FUN_CTRL:
+ case A_I2CC_AC_TIMING:
+ case A_I2CC_POOL_CTRL:
+ case A_I2CM_INTR_CTRL:
+ case A_I2CM_INTR_STS:
+ case A_I2CC_MS_TXRX_BYTE_BUF:
+ case A_I2CM_DMA_LEN:
+ case A_I2CM_DMA_TX_ADDR:
+ case A_I2CM_DMA_RX_ADDR:
+ case A_I2CM_DMA_LEN_STS:
+ case A_I2CC_DMA_ADDR:
+ case A_I2CC_DMA_LEN:
+ /* Value is already set, don't do anything. */
+ break;
+ case A_I2CM_CMD:
+ value = SHARED_FIELD_DP32(value, BUS_BUSY_STS, i2c_bus_busy(bus->bus));
+ break;
+ default:
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "%s: Bad offset 0x%" HWADDR_PRIx "\n", __func__, offset);
+ value = -1;
+ break;
+ }
+
+ trace_aspeed_i2c_bus_read(bus->id, offset, size, value);
+ return value;
+}
+
+static uint64_t aspeed_i2c_bus_read(void *opaque, hwaddr offset,
+ unsigned size)
+{
+ AspeedI2CBus *bus = opaque;
+ if (aspeed_i2c_is_new_mode(bus->controller)) {
+ return aspeed_i2c_bus_new_read(bus, offset, size);
+ }
+ return aspeed_i2c_bus_old_read(bus, offset, size);
+}
+
static void aspeed_i2c_set_state(AspeedI2CBus *bus, uint8_t state)
{
- ARRAY_FIELD_DP32(bus->regs, I2CD_CMD, TX_STATE, state);
+ if (aspeed_i2c_is_new_mode(bus->controller)) {
+ SHARED_ARRAY_FIELD_DP32(bus->regs, R_I2CC_MS_TXRX_BYTE_BUF, TX_STATE,
+ state);
+ } else {
+ SHARED_ARRAY_FIELD_DP32(bus->regs, R_I2CD_CMD, TX_STATE, state);
+ }
}
static uint8_t aspeed_i2c_get_state(AspeedI2CBus *bus)
{
- return ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, TX_STATE);
+ if (aspeed_i2c_is_new_mode(bus->controller)) {
+ return SHARED_ARRAY_FIELD_EX32(bus->regs, R_I2CC_MS_TXRX_BYTE_BUF,
+ TX_STATE);
+ }
+ return SHARED_ARRAY_FIELD_EX32(bus->regs, R_I2CD_CMD, TX_STATE);
}
static int aspeed_i2c_dma_read(AspeedI2CBus *bus, uint8_t *data)
{
MemTxResult result;
AspeedI2CState *s = bus->controller;
+ uint32_t reg_dma_addr = aspeed_i2c_bus_dma_addr_offset(bus);
+ uint32_t reg_dma_len = aspeed_i2c_bus_dma_len_offset(bus);
- result = address_space_read(&s->dram_as, bus->regs[R_I2CD_DMA_ADDR],
+ result = address_space_read(&s->dram_as, bus->regs[reg_dma_addr],
MEMTXATTRS_UNSPECIFIED, data, 1);
if (result != MEMTX_OK) {
qemu_log_mask(LOG_GUEST_ERROR, "%s: DRAM read failed @%08x\n",
- __func__, bus->regs[R_I2CD_DMA_ADDR]);
+ __func__, bus->regs[reg_dma_addr]);
return -1;
}
- bus->regs[R_I2CD_DMA_ADDR]++;
- bus->regs[R_I2CD_DMA_LEN]--;
+ bus->regs[reg_dma_addr]++;
+ bus->regs[reg_dma_len]--;
return 0;
}
@@ -240,9 +455,14 @@ static int aspeed_i2c_bus_send(AspeedI2CBus *bus, uint8_t pool_start)
AspeedI2CClass *aic = ASPEED_I2C_GET_CLASS(bus->controller);
int ret = -1;
int i;
- int pool_tx_count = ARRAY_FIELD_EX32(bus->regs, I2CD_POOL_CTRL, TX_COUNT);
-
- if (ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, TX_BUFF_EN)) {
+ uint32_t reg_cmd = aspeed_i2c_bus_cmd_offset(bus);
+ uint32_t reg_pool_ctrl = aspeed_i2c_bus_pool_ctrl_offset(bus);
+ uint32_t reg_byte_buf = aspeed_i2c_bus_byte_buf_offset(bus);
+ uint32_t reg_dma_len = aspeed_i2c_bus_dma_len_offset(bus);
+ int pool_tx_count = SHARED_ARRAY_FIELD_EX32(bus->regs, reg_pool_ctrl,
+ TX_COUNT);
+
+ if (SHARED_ARRAY_FIELD_EX32(bus->regs, reg_cmd, TX_BUFF_EN)) {
for (i = pool_start; i < pool_tx_count; i++) {
uint8_t *pool_base = aic->bus_pool_base(bus);
@@ -253,23 +473,33 @@ static int aspeed_i2c_bus_send(AspeedI2CBus *bus, uint8_t pool_start)
break;
}
}
- ARRAY_FIELD_DP32(bus->regs, I2CD_CMD, TX_BUFF_EN, 0);
- } else if (ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, TX_DMA_EN)) {
- while (bus->regs[R_I2CD_DMA_LEN]) {
+ SHARED_ARRAY_FIELD_DP32(bus->regs, reg_cmd, TX_BUFF_EN, 0);
+ } else if (SHARED_ARRAY_FIELD_EX32(bus->regs, reg_cmd, TX_DMA_EN)) {
+ /* In new mode, clear how many bytes we TXed */
+ if (aspeed_i2c_is_new_mode(bus->controller)) {
+ ARRAY_FIELD_DP32(bus->regs, I2CM_DMA_LEN_STS, TX_LEN, 0);
+ }
+ while (bus->regs[reg_dma_len]) {
uint8_t data;
aspeed_i2c_dma_read(bus, &data);
- trace_aspeed_i2c_bus_send("DMA", bus->regs[R_I2CD_DMA_LEN],
- bus->regs[R_I2CD_DMA_LEN], data);
+ trace_aspeed_i2c_bus_send("DMA", bus->regs[reg_dma_len],
+ bus->regs[reg_dma_len], data);
ret = i2c_send(bus->bus, data);
if (ret) {
break;
}
+ /* In new mode, keep track of how many bytes we TXed */
+ if (aspeed_i2c_is_new_mode(bus->controller)) {
+ ARRAY_FIELD_DP32(bus->regs, I2CM_DMA_LEN_STS, TX_LEN,
+ ARRAY_FIELD_EX32(bus->regs, I2CM_DMA_LEN_STS,
+ TX_LEN) + 1);
+ }
}
- ARRAY_FIELD_DP32(bus->regs, I2CD_CMD, TX_DMA_EN, 0);
+ SHARED_ARRAY_FIELD_DP32(bus->regs, reg_cmd, TX_DMA_EN, 0);
} else {
trace_aspeed_i2c_bus_send("BYTE", pool_start, 1,
- bus->regs[R_I2CD_BYTE_BUF]);
- ret = i2c_send(bus->bus, bus->regs[R_I2CD_BYTE_BUF]);
+ bus->regs[reg_byte_buf]);
+ ret = i2c_send(bus->bus, bus->regs[reg_byte_buf]);
}
return ret;
@@ -281,9 +511,15 @@ static void aspeed_i2c_bus_recv(AspeedI2CBus *bus)
AspeedI2CClass *aic = ASPEED_I2C_GET_CLASS(s);
uint8_t data;
int i;
- int pool_rx_count = ARRAY_FIELD_EX32(bus->regs, I2CD_POOL_CTRL, RX_COUNT);
-
- if (ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, RX_BUFF_EN)) {
+ uint32_t reg_cmd = aspeed_i2c_bus_cmd_offset(bus);
+ uint32_t reg_pool_ctrl = aspeed_i2c_bus_pool_ctrl_offset(bus);
+ uint32_t reg_byte_buf = aspeed_i2c_bus_byte_buf_offset(bus);
+ uint32_t reg_dma_len = aspeed_i2c_bus_dma_len_offset(bus);
+ uint32_t reg_dma_addr = aspeed_i2c_bus_dma_addr_offset(bus);
+ int pool_rx_count = SHARED_ARRAY_FIELD_EX32(bus->regs, reg_pool_ctrl,
+ RX_COUNT);
+
+ if (SHARED_ARRAY_FIELD_EX32(bus->regs, reg_cmd, RX_BUFF_EN)) {
uint8_t *pool_base = aic->bus_pool_base(bus);
for (i = 0; i < pool_rx_count; i++) {
@@ -293,64 +529,82 @@ static void aspeed_i2c_bus_recv(AspeedI2CBus *bus)
}
/* Update RX count */
- ARRAY_FIELD_DP32(bus->regs, I2CD_POOL_CTRL, RX_COUNT, i & 0xff);
- ARRAY_FIELD_DP32(bus->regs, I2CD_CMD, RX_BUFF_EN, 0);
- } else if (ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, RX_DMA_EN)) {
+ SHARED_ARRAY_FIELD_DP32(bus->regs, reg_pool_ctrl, RX_COUNT, i & 0xff);
+ SHARED_ARRAY_FIELD_DP32(bus->regs, reg_cmd, RX_BUFF_EN, 0);
+ } else if (SHARED_ARRAY_FIELD_EX32(bus->regs, reg_cmd, RX_DMA_EN)) {
uint8_t data;
+ /* In new mode, clear how many bytes we RXed */
+ if (aspeed_i2c_is_new_mode(bus->controller)) {
+ ARRAY_FIELD_DP32(bus->regs, I2CM_DMA_LEN_STS, RX_LEN, 0);
+ }
- while (bus->regs[R_I2CD_DMA_LEN]) {
+ while (bus->regs[reg_dma_len]) {
MemTxResult result;
data = i2c_recv(bus->bus);
- trace_aspeed_i2c_bus_recv("DMA", bus->regs[R_I2CD_DMA_LEN],
- bus->regs[R_I2CD_DMA_LEN], data);
- result = address_space_write(&s->dram_as,
- bus->regs[R_I2CD_DMA_ADDR],
+ trace_aspeed_i2c_bus_recv("DMA", bus->regs[reg_dma_len],
+ bus->regs[reg_dma_len], data);
+ result = address_space_write(&s->dram_as, bus->regs[reg_dma_addr],
MEMTXATTRS_UNSPECIFIED, &data, 1);
if (result != MEMTX_OK) {
qemu_log_mask(LOG_GUEST_ERROR, "%s: DRAM write failed @%08x\n",
- __func__, bus->regs[R_I2CD_DMA_ADDR]);
+ __func__, bus->regs[reg_dma_addr]);
return;
}
- bus->regs[R_I2CD_DMA_ADDR]++;
- bus->regs[R_I2CD_DMA_LEN]--;
+ bus->regs[reg_dma_addr]++;
+ bus->regs[reg_dma_len]--;
+ /* In new mode, keep track of how many bytes we RXed */
+ if (aspeed_i2c_is_new_mode(bus->controller)) {
+ ARRAY_FIELD_DP32(bus->regs, I2CM_DMA_LEN_STS, RX_LEN,
+ ARRAY_FIELD_EX32(bus->regs, I2CM_DMA_LEN_STS,
+ RX_LEN) + 1);
+ }
}
- ARRAY_FIELD_DP32(bus->regs, I2CD_CMD, RX_DMA_EN, 0);
+ SHARED_ARRAY_FIELD_DP32(bus->regs, reg_cmd, RX_DMA_EN, 0);
} else {
data = i2c_recv(bus->bus);
- trace_aspeed_i2c_bus_recv("BYTE", 1, 1, bus->regs[R_I2CD_BYTE_BUF]);
- ARRAY_FIELD_DP32(bus->regs, I2CD_BYTE_BUF, RX_BUF, data);
+ trace_aspeed_i2c_bus_recv("BYTE", 1, 1, bus->regs[reg_byte_buf]);
+ SHARED_ARRAY_FIELD_DP32(bus->regs, reg_byte_buf, RX_BUF, data);
}
}
static void aspeed_i2c_handle_rx_cmd(AspeedI2CBus *bus)
{
+ uint32_t reg_cmd = aspeed_i2c_bus_cmd_offset(bus);
+ uint32_t reg_intr_sts = aspeed_i2c_bus_intr_sts_offset(bus);
+
aspeed_i2c_set_state(bus, I2CD_MRXD);
aspeed_i2c_bus_recv(bus);
- ARRAY_FIELD_DP32(bus->regs, I2CD_INTR_STS, RX_DONE, 1);
- if (ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, M_S_RX_CMD_LAST)) {
+ SHARED_ARRAY_FIELD_DP32(bus->regs, reg_intr_sts, RX_DONE, 1);
+ if (SHARED_ARRAY_FIELD_EX32(bus->regs, reg_cmd, M_S_RX_CMD_LAST)) {
i2c_nack(bus->bus);
}
- ARRAY_FIELD_DP32(bus->regs, I2CD_CMD, M_RX_CMD, 0);
- ARRAY_FIELD_DP32(bus->regs, I2CD_CMD, M_S_RX_CMD_LAST, 0);
+ SHARED_ARRAY_FIELD_DP32(bus->regs, reg_cmd, M_RX_CMD, 0);
+ SHARED_ARRAY_FIELD_DP32(bus->regs, reg_cmd, M_S_RX_CMD_LAST, 0);
aspeed_i2c_set_state(bus, I2CD_MACTIVE);
}
static uint8_t aspeed_i2c_get_addr(AspeedI2CBus *bus)
{
AspeedI2CClass *aic = ASPEED_I2C_GET_CLASS(bus->controller);
+ uint32_t reg_byte_buf = aspeed_i2c_bus_byte_buf_offset(bus);
+ uint32_t reg_cmd = aspeed_i2c_bus_cmd_offset(bus);
- if (ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, TX_BUFF_EN)) {
+ if (aspeed_i2c_bus_pkt_mode_en(bus)) {
+ return (ARRAY_FIELD_EX32(bus->regs, I2CM_CMD, PKT_DEV_ADDR) << 1) |
+ SHARED_ARRAY_FIELD_EX32(bus->regs, reg_cmd, M_RX_CMD);
+ }
+ if (SHARED_ARRAY_FIELD_EX32(bus->regs, reg_cmd, TX_BUFF_EN)) {
uint8_t *pool_base = aic->bus_pool_base(bus);
return pool_base[0];
- } else if (ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, TX_DMA_EN)) {
+ } else if (SHARED_ARRAY_FIELD_EX32(bus->regs, reg_cmd, TX_DMA_EN)) {
uint8_t data;
aspeed_i2c_dma_read(bus, &data);
return data;
} else {
- return bus->regs[R_I2CD_BYTE_BUF];
+ return bus->regs[reg_byte_buf];
}
}
@@ -358,10 +612,11 @@ static bool aspeed_i2c_check_sram(AspeedI2CBus *bus)
{
AspeedI2CState *s = bus->controller;
AspeedI2CClass *aic = ASPEED_I2C_GET_CLASS(s);
- bool dma_en = ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, RX_DMA_EN) ||
- ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, TX_DMA_EN) ||
- ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, RX_BUFF_EN) ||
- ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, TX_BUFF_EN);
+ uint32_t reg_cmd = aspeed_i2c_bus_cmd_offset(bus);
+ bool dma_en = SHARED_ARRAY_FIELD_EX32(bus->regs, reg_cmd, RX_DMA_EN) ||
+ SHARED_ARRAY_FIELD_EX32(bus->regs, reg_cmd, TX_DMA_EN) ||
+ SHARED_ARRAY_FIELD_EX32(bus->regs, reg_cmd, RX_BUFF_EN) ||
+ SHARED_ARRAY_FIELD_EX32(bus->regs, reg_cmd, TX_BUFF_EN);
if (!aic->check_sram) {
return true;
}
@@ -382,27 +637,31 @@ static void aspeed_i2c_bus_cmd_dump(AspeedI2CBus *bus)
{
g_autofree char *cmd_flags = NULL;
uint32_t count;
- if (ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, RX_BUFF_EN)) {
- count = ARRAY_FIELD_EX32(bus->regs, I2CD_POOL_CTRL, TX_COUNT);
- } else if (ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, RX_DMA_EN)) {
- count = bus->regs[R_I2CD_DMA_LEN];
+ uint32_t reg_cmd = aspeed_i2c_bus_cmd_offset(bus);
+ uint32_t reg_pool_ctrl = aspeed_i2c_bus_pool_ctrl_offset(bus);
+ uint32_t reg_intr_sts = aspeed_i2c_bus_intr_sts_offset(bus);
+ uint32_t reg_dma_len = aspeed_i2c_bus_dma_len_offset(bus);
+ if (SHARED_ARRAY_FIELD_EX32(bus->regs, reg_cmd, RX_BUFF_EN)) {
+ count = SHARED_ARRAY_FIELD_EX32(bus->regs, reg_pool_ctrl, TX_COUNT);
+ } else if (SHARED_ARRAY_FIELD_EX32(bus->regs, reg_cmd, RX_DMA_EN)) {
+ count = bus->regs[reg_dma_len];
} else { /* BYTE mode */
count = 1;
}
cmd_flags = g_strdup_printf("%s%s%s%s%s%s%s%s%s",
- ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, M_START_CMD) ? "start|" : "",
- ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, RX_DMA_EN) ? "rxdma|" : "",
- ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, TX_DMA_EN) ? "txdma|" : "",
- ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, RX_BUFF_EN) ? "rxbuf|" : "",
- ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, TX_BUFF_EN) ? "txbuf|" : "",
- ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, M_TX_CMD) ? "tx|" : "",
- ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, M_RX_CMD) ? "rx|" : "",
- ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, M_S_RX_CMD_LAST) ? "last|" : "",
- ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, M_STOP_CMD) ? "stop" : "");
-
- trace_aspeed_i2c_bus_cmd(bus->regs[R_I2CD_CMD], cmd_flags, count,
- bus->regs[R_I2CD_INTR_STS]);
+ SHARED_ARRAY_FIELD_EX32(bus->regs, reg_cmd, M_START_CMD) ? "start|" : "",
+ SHARED_ARRAY_FIELD_EX32(bus->regs, reg_cmd, RX_DMA_EN) ? "rxdma|" : "",
+ SHARED_ARRAY_FIELD_EX32(bus->regs, reg_cmd, TX_DMA_EN) ? "txdma|" : "",
+ SHARED_ARRAY_FIELD_EX32(bus->regs, reg_cmd, RX_BUFF_EN) ? "rxbuf|" : "",
+ SHARED_ARRAY_FIELD_EX32(bus->regs, reg_cmd, TX_BUFF_EN) ? "txbuf|" : "",
+ SHARED_ARRAY_FIELD_EX32(bus->regs, reg_cmd, M_TX_CMD) ? "tx|" : "",
+ SHARED_ARRAY_FIELD_EX32(bus->regs, reg_cmd, M_RX_CMD) ? "rx|" : "",
+ SHARED_ARRAY_FIELD_EX32(bus->regs, reg_cmd, M_S_RX_CMD_LAST) ? "last|" : "",
+ SHARED_ARRAY_FIELD_EX32(bus->regs, reg_cmd, M_STOP_CMD) ? "stop|" : "");
+
+ trace_aspeed_i2c_bus_cmd(bus->regs[reg_cmd], cmd_flags, count,
+ bus->regs[reg_intr_sts]);
}
/*
@@ -412,9 +671,10 @@ static void aspeed_i2c_bus_cmd_dump(AspeedI2CBus *bus)
static void aspeed_i2c_bus_handle_cmd(AspeedI2CBus *bus, uint64_t value)
{
uint8_t pool_start = 0;
-
- bus->regs[R_I2CD_CMD] &= ~0xFFFF;
- bus->regs[R_I2CD_CMD] |= value & 0xFFFF;
+ uint32_t reg_intr_sts = aspeed_i2c_bus_intr_sts_offset(bus);
+ uint32_t reg_cmd = aspeed_i2c_bus_cmd_offset(bus);
+ uint32_t reg_pool_ctrl = aspeed_i2c_bus_pool_ctrl_offset(bus);
+ uint32_t reg_dma_len = aspeed_i2c_bus_dma_len_offset(bus);
if (!aspeed_i2c_check_sram(bus)) {
return;
@@ -424,7 +684,7 @@ static void aspeed_i2c_bus_handle_cmd(AspeedI2CBus *bus, uint64_t value)
aspeed_i2c_bus_cmd_dump(bus);
}
- if (ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, M_START_CMD)) {
+ if (SHARED_ARRAY_FIELD_EX32(bus->regs, reg_cmd, M_START_CMD)) {
uint8_t state = aspeed_i2c_get_state(bus) & I2CD_MACTIVE ?
I2CD_MSTARTR : I2CD_MSTART;
uint8_t addr;
@@ -432,24 +692,30 @@ static void aspeed_i2c_bus_handle_cmd(AspeedI2CBus *bus, uint64_t value)
aspeed_i2c_set_state(bus, state);
addr = aspeed_i2c_get_addr(bus);
-
if (i2c_start_transfer(bus->bus, extract32(addr, 1, 7),
extract32(addr, 0, 1))) {
- ARRAY_FIELD_DP32(bus->regs, I2CD_INTR_STS, TX_NAK, 1);
+ SHARED_ARRAY_FIELD_DP32(bus->regs, reg_intr_sts, TX_NAK, 1);
+ if (aspeed_i2c_bus_pkt_mode_en(bus)) {
+ ARRAY_FIELD_DP32(bus->regs, I2CM_INTR_STS, PKT_CMD_FAIL, 1);
+ }
} else {
- ARRAY_FIELD_DP32(bus->regs, I2CD_INTR_STS, TX_ACK, 1);
+ /* START doesn't set TX_ACK in packet mode */
+ if (!aspeed_i2c_bus_pkt_mode_en(bus)) {
+ SHARED_ARRAY_FIELD_DP32(bus->regs, reg_intr_sts, TX_ACK, 1);
+ }
}
- ARRAY_FIELD_DP32(bus->regs, I2CD_CMD, M_START_CMD, 0);
+ SHARED_ARRAY_FIELD_DP32(bus->regs, reg_cmd, M_START_CMD, 0);
/*
* The START command is also a TX command, as the slave
* address is sent on the bus. Drop the TX flag if nothing
* else needs to be sent in this sequence.
*/
- if (ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, TX_BUFF_EN)) {
- if (ARRAY_FIELD_EX32(bus->regs, I2CD_POOL_CTRL, TX_COUNT) == 1) {
- ARRAY_FIELD_DP32(bus->regs, I2CD_CMD, M_TX_CMD, 0);
+ if (SHARED_ARRAY_FIELD_EX32(bus->regs, reg_cmd, TX_BUFF_EN)) {
+ if (SHARED_ARRAY_FIELD_EX32(bus->regs, reg_pool_ctrl, TX_COUNT)
+ == 1) {
+ SHARED_ARRAY_FIELD_DP32(bus->regs, reg_cmd, M_TX_CMD, 0);
} else {
/*
* Increase the start index in the TX pool buffer to
@@ -457,57 +723,216 @@ static void aspeed_i2c_bus_handle_cmd(AspeedI2CBus *bus, uint64_t value)
*/
pool_start++;
}
- } else if (ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, TX_DMA_EN)) {
- if (bus->regs[R_I2CD_DMA_LEN] == 0) {
- ARRAY_FIELD_DP32(bus->regs, I2CD_CMD, M_TX_CMD, 0);
+ } else if (SHARED_ARRAY_FIELD_EX32(bus->regs, reg_cmd, TX_DMA_EN)) {
+ if (bus->regs[reg_dma_len] == 0) {
+ SHARED_ARRAY_FIELD_DP32(bus->regs, reg_cmd, M_TX_CMD, 0);
}
} else {
- ARRAY_FIELD_DP32(bus->regs, I2CD_CMD, M_TX_CMD, 0);
+ SHARED_ARRAY_FIELD_DP32(bus->regs, reg_cmd, M_TX_CMD, 0);
}
/* No slave found */
if (!i2c_bus_busy(bus->bus)) {
+ if (aspeed_i2c_bus_pkt_mode_en(bus)) {
+ ARRAY_FIELD_DP32(bus->regs, I2CM_INTR_STS, PKT_CMD_FAIL, 1);
+ ARRAY_FIELD_DP32(bus->regs, I2CM_INTR_STS, PKT_CMD_DONE, 1);
+ }
return;
}
aspeed_i2c_set_state(bus, I2CD_MACTIVE);
}
- if (ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, M_TX_CMD)) {
+ if (SHARED_ARRAY_FIELD_EX32(bus->regs, reg_cmd, M_TX_CMD)) {
aspeed_i2c_set_state(bus, I2CD_MTXD);
if (aspeed_i2c_bus_send(bus, pool_start)) {
- ARRAY_FIELD_DP32(bus->regs, I2CD_INTR_STS, TX_NAK, 1);
+ SHARED_ARRAY_FIELD_DP32(bus->regs, reg_intr_sts, TX_NAK, 1);
i2c_end_transfer(bus->bus);
} else {
- ARRAY_FIELD_DP32(bus->regs, I2CD_INTR_STS, TX_ACK, 1);
+ SHARED_ARRAY_FIELD_DP32(bus->regs, reg_intr_sts, TX_ACK, 1);
}
- ARRAY_FIELD_DP32(bus->regs, I2CD_CMD, M_TX_CMD, 0);
+ SHARED_ARRAY_FIELD_DP32(bus->regs, reg_cmd, M_TX_CMD, 0);
aspeed_i2c_set_state(bus, I2CD_MACTIVE);
}
- if ((ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, M_RX_CMD) ||
- ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, M_S_RX_CMD_LAST)) &&
- !ARRAY_FIELD_EX32(bus->regs, I2CD_INTR_STS, RX_DONE)) {
+ if ((SHARED_ARRAY_FIELD_EX32(bus->regs, reg_cmd, M_RX_CMD) ||
+ SHARED_ARRAY_FIELD_EX32(bus->regs, reg_cmd, M_S_RX_CMD_LAST)) &&
+ !SHARED_ARRAY_FIELD_EX32(bus->regs, reg_intr_sts, RX_DONE)) {
aspeed_i2c_handle_rx_cmd(bus);
}
- if (ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, M_STOP_CMD)) {
+ if (SHARED_ARRAY_FIELD_EX32(bus->regs, reg_cmd, M_STOP_CMD)) {
if (!(aspeed_i2c_get_state(bus) & I2CD_MACTIVE)) {
qemu_log_mask(LOG_GUEST_ERROR, "%s: abnormal stop\n", __func__);
- ARRAY_FIELD_DP32(bus->regs, I2CD_INTR_STS, ABNORMAL, 1);
+ SHARED_ARRAY_FIELD_DP32(bus->regs, reg_intr_sts, ABNORMAL, 1);
+ if (aspeed_i2c_bus_pkt_mode_en(bus)) {
+ ARRAY_FIELD_DP32(bus->regs, I2CM_INTR_STS, PKT_CMD_FAIL, 1);
+ }
} else {
aspeed_i2c_set_state(bus, I2CD_MSTOP);
i2c_end_transfer(bus->bus);
- ARRAY_FIELD_DP32(bus->regs, I2CD_INTR_STS, NORMAL_STOP, 1);
+ SHARED_ARRAY_FIELD_DP32(bus->regs, reg_intr_sts, NORMAL_STOP, 1);
}
- ARRAY_FIELD_DP32(bus->regs, I2CD_CMD, M_STOP_CMD, 0);
+ SHARED_ARRAY_FIELD_DP32(bus->regs, reg_cmd, M_STOP_CMD, 0);
aspeed_i2c_set_state(bus, I2CD_IDLE);
}
+
+ if (aspeed_i2c_bus_pkt_mode_en(bus)) {
+ ARRAY_FIELD_DP32(bus->regs, I2CM_INTR_STS, PKT_CMD_DONE, 1);
+ }
}
-static void aspeed_i2c_bus_write(void *opaque, hwaddr offset,
- uint64_t value, unsigned size)
+static void aspeed_i2c_bus_new_write(AspeedI2CBus *bus, hwaddr offset,
+ uint64_t value, unsigned size)
+{
+ AspeedI2CClass *aic = ASPEED_I2C_GET_CLASS(bus->controller);
+ bool handle_rx;
+ bool w1t;
+
+ trace_aspeed_i2c_bus_write(bus->id, offset, size, value);
+
+ switch (offset) {
+ case A_I2CC_FUN_CTRL:
+ if (SHARED_FIELD_EX32(value, SLAVE_EN)) {
+ qemu_log_mask(LOG_UNIMP, "%s: slave mode not implemented\n",
+ __func__);
+ break;
+ }
+ bus->regs[R_I2CD_FUN_CTRL] = value & 0x007dc3ff;
+ break;
+ case A_I2CC_AC_TIMING:
+ bus->regs[R_I2CC_AC_TIMING] = value & 0x1ffff0ff;
+ break;
+ case A_I2CC_MS_TXRX_BYTE_BUF:
+ SHARED_ARRAY_FIELD_DP32(bus->regs, R_I2CC_MS_TXRX_BYTE_BUF, TX_BUF,
+ value);
+ break;
+ case A_I2CC_POOL_CTRL:
+ bus->regs[R_I2CC_POOL_CTRL] &= ~0xffffff;
+ bus->regs[R_I2CC_POOL_CTRL] |= (value & 0xffffff);
+ break;
+ case A_I2CM_INTR_CTRL:
+ bus->regs[R_I2CM_INTR_CTRL] = value & 0x0007f07f;
+ break;
+ case A_I2CM_INTR_STS:
+ handle_rx = SHARED_ARRAY_FIELD_EX32(bus->regs, R_I2CM_INTR_STS, RX_DONE)
+ && SHARED_FIELD_EX32(value, RX_DONE);
+
+ /* In packet mode, clearing PKT_CMD_DONE clears other interrupts. */
+ if (aspeed_i2c_bus_pkt_mode_en(bus) &&
+ FIELD_EX32(value, I2CM_INTR_STS, PKT_CMD_DONE)) {
+ bus->regs[R_I2CM_INTR_STS] &= 0xf0001000;
+ if (!bus->regs[R_I2CM_INTR_STS]) {
+ bus->controller->intr_status &= ~(1 << bus->id);
+ qemu_irq_lower(aic->bus_get_irq(bus));
+ }
+ break;
+ }
+ bus->regs[R_I2CM_INTR_STS] &= ~(value & 0xf007f07f);
+ if (!bus->regs[R_I2CM_INTR_STS]) {
+ bus->controller->intr_status &= ~(1 << bus->id);
+ qemu_irq_lower(aic->bus_get_irq(bus));
+ }
+ if (handle_rx && (SHARED_ARRAY_FIELD_EX32(bus->regs, R_I2CM_CMD,
+ M_RX_CMD) ||
+ SHARED_ARRAY_FIELD_EX32(bus->regs, R_I2CM_CMD,
+ M_S_RX_CMD_LAST))) {
+ aspeed_i2c_handle_rx_cmd(bus);
+ aspeed_i2c_bus_raise_interrupt(bus);
+ }
+ break;
+ case A_I2CM_CMD:
+ if (!aspeed_i2c_bus_is_enabled(bus)) {
+ break;
+ }
+
+ if (!aspeed_i2c_bus_is_master(bus)) {
+ qemu_log_mask(LOG_UNIMP, "%s: slave mode not implemented\n",
+ __func__);
+ break;
+ }
+
+ if (!aic->has_dma &&
+ (SHARED_FIELD_EX32(value, RX_DMA_EN) ||
+ SHARED_FIELD_EX32(value, TX_DMA_EN))) {
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: No DMA support\n", __func__);
+ break;
+ }
+
+ if (bus->regs[R_I2CM_INTR_STS] & 0xffff0000) {
+ qemu_log_mask(LOG_UNIMP, "%s: Packet mode is not implemented\n",
+ __func__);
+ break;
+ }
+
+ value &= 0xff0ffbfb;
+ if (ARRAY_FIELD_EX32(bus->regs, I2CM_CMD, W1_CTRL)) {
+ bus->regs[R_I2CM_CMD] |= value;
+ } else {
+ bus->regs[R_I2CM_CMD] = value;
+ }
+
+ aspeed_i2c_bus_handle_cmd(bus, value);
+ aspeed_i2c_bus_raise_interrupt(bus);
+ break;
+ case A_I2CM_DMA_TX_ADDR:
+ bus->regs[R_I2CM_DMA_TX_ADDR] = FIELD_EX32(value, I2CM_DMA_TX_ADDR,
+ ADDR);
+ bus->regs[R_I2CC_DMA_ADDR] = FIELD_EX32(value, I2CM_DMA_TX_ADDR, ADDR);
+ bus->regs[R_I2CC_DMA_LEN] = ARRAY_FIELD_EX32(bus->regs, I2CM_DMA_LEN,
+ TX_BUF_LEN) + 1;
+ break;
+ case A_I2CM_DMA_RX_ADDR:
+ bus->regs[R_I2CM_DMA_RX_ADDR] = FIELD_EX32(value, I2CM_DMA_RX_ADDR,
+ ADDR);
+ bus->regs[R_I2CC_DMA_ADDR] = FIELD_EX32(value, I2CM_DMA_RX_ADDR, ADDR);
+ bus->regs[R_I2CC_DMA_LEN] = ARRAY_FIELD_EX32(bus->regs, I2CM_DMA_LEN,
+ RX_BUF_LEN) + 1;
+ break;
+ case A_I2CM_DMA_LEN:
+ w1t = ARRAY_FIELD_EX32(bus->regs, I2CM_DMA_LEN, RX_BUF_LEN_W1T) ||
+ ARRAY_FIELD_EX32(bus->regs, I2CM_DMA_LEN, TX_BUF_LEN_W1T);
+ /* If none of the w1t bits are set, just write to the reg as normal. */
+ if (!w1t) {
+ bus->regs[R_I2CM_DMA_LEN] = value;
+ break;
+ }
+ if (ARRAY_FIELD_EX32(bus->regs, I2CM_DMA_LEN, RX_BUF_LEN_W1T)) {
+ ARRAY_FIELD_DP32(bus->regs, I2CM_DMA_LEN, RX_BUF_LEN,
+ FIELD_EX32(value, I2CM_DMA_LEN, RX_BUF_LEN));
+ }
+ if (ARRAY_FIELD_EX32(bus->regs, I2CM_DMA_LEN, TX_BUF_LEN_W1T)) {
+ ARRAY_FIELD_DP32(bus->regs, I2CM_DMA_LEN, TX_BUF_LEN,
+ FIELD_EX32(value, I2CM_DMA_LEN, TX_BUF_LEN));
+ }
+ break;
+ case A_I2CM_DMA_LEN_STS:
+ /* Writes clear to 0 */
+ bus->regs[R_I2CM_DMA_LEN_STS] = 0;
+ break;
+ case A_I2CC_DMA_ADDR:
+ case A_I2CC_DMA_LEN:
+ /* RO */
+ break;
+ case A_I2CS_DMA_LEN_STS:
+ case A_I2CS_DMA_TX_ADDR:
+ case A_I2CS_DMA_RX_ADDR:
+ case A_I2CS_DEV_ADDR:
+ case A_I2CS_INTR_CTRL:
+ case A_I2CS_INTR_STS:
+ case A_I2CS_CMD:
+ case A_I2CS_DMA_LEN:
+ qemu_log_mask(LOG_UNIMP, "%s: Slave mode is not implemented\n",
+ __func__);
+ break;
+ default:
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: Bad offset 0x%" HWADDR_PRIx "\n",
+ __func__, offset);
+ }
+}
+
+static void aspeed_i2c_bus_old_write(AspeedI2CBus *bus, hwaddr offset,
+ uint64_t value, unsigned size)
{
- AspeedI2CBus *bus = opaque;
AspeedI2CClass *aic = ASPEED_I2C_GET_CLASS(bus->controller);
bool handle_rx;
@@ -515,7 +940,7 @@ static void aspeed_i2c_bus_write(void *opaque, hwaddr offset,
switch (offset) {
case A_I2CD_FUN_CTRL:
- if (FIELD_EX32(value, I2CD_FUN_CTRL, SLAVE_EN)) {
+ if (SHARED_FIELD_EX32(value, SLAVE_EN)) {
qemu_log_mask(LOG_UNIMP, "%s: slave mode not implemented\n",
__func__);
break;
@@ -532,15 +957,17 @@ static void aspeed_i2c_bus_write(void *opaque, hwaddr offset,
bus->regs[R_I2CD_INTR_CTRL] = value & 0x7FFF;
break;
case A_I2CD_INTR_STS:
- handle_rx = ARRAY_FIELD_EX32(bus->regs, I2CD_INTR_STS, RX_DONE) &&
- FIELD_EX32(value, I2CD_INTR_STS, RX_DONE);
+ handle_rx = SHARED_ARRAY_FIELD_EX32(bus->regs, R_I2CD_INTR_STS, RX_DONE)
+ && SHARED_FIELD_EX32(value, RX_DONE);
bus->regs[R_I2CD_INTR_STS] &= ~(value & 0x7FFF);
if (!bus->regs[R_I2CD_INTR_STS]) {
bus->controller->intr_status &= ~(1 << bus->id);
qemu_irq_lower(aic->bus_get_irq(bus));
}
- if (handle_rx && (ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, M_RX_CMD) ||
- ARRAY_FIELD_EX32(bus->regs, I2CD_CMD, M_S_RX_CMD_LAST))) {
+ if (handle_rx && (SHARED_ARRAY_FIELD_EX32(bus->regs, R_I2CD_CMD,
+ M_RX_CMD) ||
+ SHARED_ARRAY_FIELD_EX32(bus->regs, R_I2CD_CMD,
+ M_S_RX_CMD_LAST))) {
aspeed_i2c_handle_rx_cmd(bus);
aspeed_i2c_bus_raise_interrupt(bus);
}
@@ -555,7 +982,7 @@ static void aspeed_i2c_bus_write(void *opaque, hwaddr offset,
break;
case A_I2CD_BYTE_BUF:
- ARRAY_FIELD_DP32(bus->regs, I2CD_BYTE_BUF, TX_BUF, value);
+ SHARED_ARRAY_FIELD_DP32(bus->regs, R_I2CD_BYTE_BUF, TX_BUF, value);
break;
case A_I2CD_CMD:
if (!aspeed_i2c_bus_is_enabled(bus)) {
@@ -569,12 +996,15 @@ static void aspeed_i2c_bus_write(void *opaque, hwaddr offset,
}
if (!aic->has_dma &&
- (FIELD_EX32(value, I2CD_CMD, RX_DMA_EN) ||
- FIELD_EX32(value, I2CD_CMD, TX_DMA_EN))) {
+ (SHARED_FIELD_EX32(value, RX_DMA_EN) ||
+ SHARED_FIELD_EX32(value, TX_DMA_EN))) {
qemu_log_mask(LOG_GUEST_ERROR, "%s: No DMA support\n", __func__);
break;
}
+ bus->regs[R_I2CD_CMD] &= ~0xFFFF;
+ bus->regs[R_I2CD_CMD] |= value & 0xFFFF;
+
aspeed_i2c_bus_handle_cmd(bus, value);
aspeed_i2c_bus_raise_interrupt(bus);
break;
@@ -605,6 +1035,17 @@ static void aspeed_i2c_bus_write(void *opaque, hwaddr offset,
}
}
+static void aspeed_i2c_bus_write(void *opaque, hwaddr offset,
+ uint64_t value, unsigned size)
+{
+ AspeedI2CBus *bus = opaque;
+ if (aspeed_i2c_is_new_mode(bus->controller)) {
+ aspeed_i2c_bus_new_write(bus, offset, value, size);
+ } else {
+ aspeed_i2c_bus_old_write(bus, offset, value, size);
+ }
+}
+
static uint64_t aspeed_i2c_ctrl_read(void *opaque, hwaddr offset,
unsigned size)
{
@@ -615,6 +1056,13 @@ static uint64_t aspeed_i2c_ctrl_read(void *opaque, hwaddr offset,
return s->intr_status;
case A_I2C_CTRL_GLOBAL:
return s->ctrl_global;
+ case A_I2C_CTRL_NEW_CLK_DIVIDER:
+ if (aspeed_i2c_is_new_mode(s)) {
+ return s->new_clk_divider;
+ }
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: Bad offset 0x%" HWADDR_PRIx "\n",
+ __func__, offset);
+ break;
default:
qemu_log_mask(LOG_GUEST_ERROR, "%s: Bad offset 0x%" HWADDR_PRIx "\n",
__func__, offset);
@@ -633,6 +1081,14 @@ static void aspeed_i2c_ctrl_write(void *opaque, hwaddr offset,
case A_I2C_CTRL_GLOBAL:
s->ctrl_global = value;
break;
+ case A_I2C_CTRL_NEW_CLK_DIVIDER:
+ if (aspeed_i2c_is_new_mode(s)) {
+ s->new_clk_divider = value;
+ } else {
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: Bad offset 0x%" HWADDR_PRIx
+ "\n", __func__, offset);
+ }
+ break;
case A_I2C_CTRL_STATUS:
default:
qemu_log_mask(LOG_GUEST_ERROR, "%s: Bad offset 0x%" HWADDR_PRIx "\n",
@@ -690,10 +1146,10 @@ static const MemoryRegionOps aspeed_i2c_pool_ops = {
static const VMStateDescription aspeed_i2c_bus_vmstate = {
.name = TYPE_ASPEED_I2C,
- .version_id = 4,
- .minimum_version_id = 4,
+ .version_id = 5,
+ .minimum_version_id = 5,
.fields = (VMStateField[]) {
- VMSTATE_UINT32_ARRAY(regs, AspeedI2CBus, ASPEED_I2C_OLD_NUM_REG),
+ VMSTATE_UINT32_ARRAY(regs, AspeedI2CBus, ASPEED_I2C_NEW_NUM_REG),
VMSTATE_END_OF_LIST()
}
};
--
2.35.3
^ permalink raw reply related [flat|nested] 18+ messages in thread* [PATCH v2 11/17] aspeed: i2c: Add PKT_DONE IRQ to trace
2022-06-13 13:25 [PATCH v2 00/17] aspeed: Extend ast2600 I2C model with new mode Cédric Le Goater
` (9 preceding siblings ...)
2022-06-13 13:25 ` [PATCH v2 10/17] aspeed: i2c: Add new mode support Cédric Le Goater
@ 2022-06-13 13:25 ` Cédric Le Goater
2022-06-13 13:25 ` [PATCH v2 12/17] aspeed: i2c: Move regs and helpers to header file Cédric Le Goater
` (5 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: Cédric Le Goater @ 2022-06-13 13:25 UTC (permalink / raw)
To: qemu-arm, qemu-devel
Cc: Peter Maydell, Joe Komlodi, Troy Lee, Jamin Lin, Steven Lee,
Klaus Jensen, Peter Delevoryas, Corey Minyard, Jonathan Cameron,
Damien Hedde, Andrew Jeffery, Joel Stanley, Cleber Rosa,
Philippe Mathieu-Daudé, Wainer dos Santos Moschetta,
Beraldo Leal, Cédric Le Goater
From: Joe Komlodi <komlodi@google.com>
Signed-off-by: Joe Komlodi <komlodi@google.com>
Change-Id: I566eb09f4b9016e24570572f367627f6594039f5
Message-Id: <20220331043248.2237838-7-komlodi@google.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
hw/i2c/aspeed_i2c.c | 3 +++
hw/i2c/trace-events | 2 +-
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/hw/i2c/aspeed_i2c.c b/hw/i2c/aspeed_i2c.c
index 8b6a88315a5b..0e0cd5bec8d8 100644
--- a/hw/i2c/aspeed_i2c.c
+++ b/hw/i2c/aspeed_i2c.c
@@ -305,6 +305,9 @@ static inline void aspeed_i2c_bus_raise_interrupt(AspeedI2CBus *bus)
bool raise_irq;
trace_aspeed_i2c_bus_raise_interrupt(bus->regs[reg_intr_sts],
+ aspeed_i2c_bus_pkt_mode_en(bus) &&
+ ARRAY_FIELD_EX32(bus->regs, I2CM_INTR_STS, PKT_CMD_DONE) ?
+ "pktdone|" : "",
SHARED_ARRAY_FIELD_EX32(bus->regs, reg_intr_sts, TX_NAK) ? "nak|" : "",
SHARED_ARRAY_FIELD_EX32(bus->regs, reg_intr_sts, TX_ACK) ? "ack|" : "",
SHARED_ARRAY_FIELD_EX32(bus->regs, reg_intr_sts, RX_DONE) ? "done|"
diff --git a/hw/i2c/trace-events b/hw/i2c/trace-events
index 7d8907c1eede..85e4bddff936 100644
--- a/hw/i2c/trace-events
+++ b/hw/i2c/trace-events
@@ -9,7 +9,7 @@ i2c_recv(uint8_t address, uint8_t data) "recv(addr:0x%02x) data:0x%02x"
# aspeed_i2c.c
aspeed_i2c_bus_cmd(uint32_t cmd, const char *cmd_flags, uint32_t count, uint32_t intr_status) "handling cmd=0x%x %s count=%d intr=0x%x"
-aspeed_i2c_bus_raise_interrupt(uint32_t intr_status, const char *str1, const char *str2, const char *str3, const char *str4, const char *str5) "handled intr=0x%x %s%s%s%s%s"
+aspeed_i2c_bus_raise_interrupt(uint32_t intr_status, const char *str1, const char *str2, const char *str3, const char *str4, const char *str5, const char *str6) "handled intr=0x%x %s%s%s%s%s%s"
aspeed_i2c_bus_read(uint32_t busid, uint64_t offset, unsigned size, uint64_t value) "bus[%d]: To 0x%" PRIx64 " of size %u: 0x%" PRIx64
aspeed_i2c_bus_write(uint32_t busid, uint64_t offset, unsigned size, uint64_t value) "bus[%d]: To 0x%" PRIx64 " of size %u: 0x%" PRIx64
aspeed_i2c_bus_send(const char *mode, int i, int count, uint8_t byte) "%s send %d/%d 0x%02x"
--
2.35.3
^ permalink raw reply related [flat|nested] 18+ messages in thread* [PATCH v2 12/17] aspeed: i2c: Move regs and helpers to header file
2022-06-13 13:25 [PATCH v2 00/17] aspeed: Extend ast2600 I2C model with new mode Cédric Le Goater
` (10 preceding siblings ...)
2022-06-13 13:25 ` [PATCH v2 11/17] aspeed: i2c: Add PKT_DONE IRQ to trace Cédric Le Goater
@ 2022-06-13 13:25 ` Cédric Le Goater
2022-06-13 13:25 ` [PATCH v2 13/17] aspeed/i2c: Add ast1030 controller models Cédric Le Goater
` (4 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: Cédric Le Goater @ 2022-06-13 13:25 UTC (permalink / raw)
To: qemu-arm, qemu-devel
Cc: Peter Maydell, Joe Komlodi, Troy Lee, Jamin Lin, Steven Lee,
Klaus Jensen, Peter Delevoryas, Corey Minyard, Jonathan Cameron,
Damien Hedde, Andrew Jeffery, Joel Stanley, Cleber Rosa,
Philippe Mathieu-Daudé, Wainer dos Santos Moschetta,
Beraldo Leal, Cédric Le Goater
From: Joe Komlodi <komlodi@google.com>
Moves register definitions and short commonly used inlined functiosn to
the header file to help tidy up the implementation file.
Signed-off-by: Joe Komlodi <komlodi@google.com>
Change-Id: I34dff7485b6bbe3c9482715ccd94dbd65dc5f324
Message-Id: <20220331043248.2237838-8-komlodi@google.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
include/hw/i2c/aspeed_i2c.h | 267 ++++++++++++++++++++++++++++++++++++
hw/i2c/aspeed_i2c.c | 266 -----------------------------------
2 files changed, 267 insertions(+), 266 deletions(-)
diff --git a/include/hw/i2c/aspeed_i2c.h b/include/hw/i2c/aspeed_i2c.h
index 8297b190a9d2..8ea9f6671ec8 100644
--- a/include/hw/i2c/aspeed_i2c.h
+++ b/include/hw/i2c/aspeed_i2c.h
@@ -23,6 +23,7 @@
#include "hw/i2c/i2c.h"
#include "hw/sysbus.h"
+#include "hw/registerfields.h"
#include "qom/object.h"
#define TYPE_ASPEED_I2C "aspeed.i2c"
@@ -36,6 +37,182 @@ OBJECT_DECLARE_TYPE(AspeedI2CState, AspeedI2CClass, ASPEED_I2C)
#define ASPEED_I2C_OLD_NUM_REG 11
#define ASPEED_I2C_NEW_NUM_REG 22
+/* Tx State Machine */
+#define I2CD_TX_STATE_MASK 0xf
+#define I2CD_IDLE 0x0
+#define I2CD_MACTIVE 0x8
+#define I2CD_MSTART 0x9
+#define I2CD_MSTARTR 0xa
+#define I2CD_MSTOP 0xb
+#define I2CD_MTXD 0xc
+#define I2CD_MRXACK 0xd
+#define I2CD_MRXD 0xe
+#define I2CD_MTXACK 0xf
+#define I2CD_SWAIT 0x1
+#define I2CD_SRXD 0x4
+#define I2CD_STXACK 0x5
+#define I2CD_STXD 0x6
+#define I2CD_SRXACK 0x7
+#define I2CD_RECOVER 0x3
+
+/* I2C Global Register */
+REG32(I2C_CTRL_STATUS, 0x0) /* Device Interrupt Status */
+REG32(I2C_CTRL_ASSIGN, 0x8) /* Device Interrupt Target Assignment */
+REG32(I2C_CTRL_GLOBAL, 0xC) /* Global Control Register */
+ FIELD(I2C_CTRL_GLOBAL, REG_MODE, 2, 1)
+ FIELD(I2C_CTRL_GLOBAL, SRAM_EN, 0, 1)
+REG32(I2C_CTRL_NEW_CLK_DIVIDER, 0x10) /* New mode clock divider */
+
+/* I2C Old Mode Device (Bus) Register */
+REG32(I2CD_FUN_CTRL, 0x0) /* I2CD Function Control */
+ FIELD(I2CD_FUN_CTRL, POOL_PAGE_SEL, 20, 3) /* AST2400 */
+ SHARED_FIELD(M_SDA_LOCK_EN, 16, 1)
+ SHARED_FIELD(MULTI_MASTER_DIS, 15, 1)
+ SHARED_FIELD(M_SCL_DRIVE_EN, 14, 1)
+ SHARED_FIELD(MSB_STS, 9, 1)
+ SHARED_FIELD(SDA_DRIVE_IT_EN, 8, 1)
+ SHARED_FIELD(M_SDA_DRIVE_IT_EN, 7, 1)
+ SHARED_FIELD(M_HIGH_SPEED_EN, 6, 1)
+ SHARED_FIELD(DEF_ADDR_EN, 5, 1)
+ SHARED_FIELD(DEF_ALERT_EN, 4, 1)
+ SHARED_FIELD(DEF_ARP_EN, 3, 1)
+ SHARED_FIELD(DEF_GCALL_EN, 2, 1)
+ SHARED_FIELD(SLAVE_EN, 1, 1)
+ SHARED_FIELD(MASTER_EN, 0, 1)
+REG32(I2CD_AC_TIMING1, 0x04) /* Clock and AC Timing Control #1 */
+REG32(I2CD_AC_TIMING2, 0x08) /* Clock and AC Timing Control #2 */
+REG32(I2CD_INTR_CTRL, 0x0C) /* I2CD Interrupt Control */
+REG32(I2CD_INTR_STS, 0x10) /* I2CD Interrupt Status */
+ SHARED_FIELD(SLAVE_ADDR_MATCH, 31, 1) /* 0: addr1 1: addr2 */
+ SHARED_FIELD(SLAVE_ADDR_RX_PENDING, 29, 1)
+ SHARED_FIELD(SLAVE_INACTIVE_TIMEOUT, 15, 1)
+ SHARED_FIELD(SDA_DL_TIMEOUT, 14, 1)
+ SHARED_FIELD(BUS_RECOVER_DONE, 13, 1)
+ SHARED_FIELD(SMBUS_ALERT, 12, 1) /* Bus [0-3] only */
+ FIELD(I2CD_INTR_STS, SMBUS_ARP_ADDR, 11, 1) /* Removed */
+ FIELD(I2CD_INTR_STS, SMBUS_DEV_ALERT_ADDR, 10, 1) /* Removed */
+ FIELD(I2CD_INTR_STS, SMBUS_DEF_ADDR, 9, 1) /* Removed */
+ FIELD(I2CD_INTR_STS, GCALL_ADDR, 8, 1) /* Removed */
+ FIELD(I2CD_INTR_STS, SLAVE_ADDR_RX_MATCH, 7, 1) /* use RX_DONE */
+ SHARED_FIELD(SCL_TIMEOUT, 6, 1)
+ SHARED_FIELD(ABNORMAL, 5, 1)
+ SHARED_FIELD(NORMAL_STOP, 4, 1)
+ SHARED_FIELD(ARBIT_LOSS, 3, 1)
+ SHARED_FIELD(RX_DONE, 2, 1)
+ SHARED_FIELD(TX_NAK, 1, 1)
+ SHARED_FIELD(TX_ACK, 0, 1)
+REG32(I2CD_CMD, 0x14) /* I2CD Command/Status */
+ SHARED_FIELD(SDA_OE, 28, 1)
+ SHARED_FIELD(SDA_O, 27, 1)
+ SHARED_FIELD(SCL_OE, 26, 1)
+ SHARED_FIELD(SCL_O, 25, 1)
+ SHARED_FIELD(TX_TIMING, 23, 2)
+ SHARED_FIELD(TX_STATE, 19, 4)
+ SHARED_FIELD(SCL_LINE_STS, 18, 1)
+ SHARED_FIELD(SDA_LINE_STS, 17, 1)
+ SHARED_FIELD(BUS_BUSY_STS, 16, 1)
+ SHARED_FIELD(SDA_OE_OUT_DIR, 15, 1)
+ SHARED_FIELD(SDA_O_OUT_DIR, 14, 1)
+ SHARED_FIELD(SCL_OE_OUT_DIR, 13, 1)
+ SHARED_FIELD(SCL_O_OUT_DIR, 12, 1)
+ SHARED_FIELD(BUS_RECOVER_CMD_EN, 11, 1)
+ SHARED_FIELD(S_ALT_EN, 10, 1)
+ /* Command Bits */
+ SHARED_FIELD(RX_DMA_EN, 9, 1)
+ SHARED_FIELD(TX_DMA_EN, 8, 1)
+ SHARED_FIELD(RX_BUFF_EN, 7, 1)
+ SHARED_FIELD(TX_BUFF_EN, 6, 1)
+ SHARED_FIELD(M_STOP_CMD, 5, 1)
+ SHARED_FIELD(M_S_RX_CMD_LAST, 4, 1)
+ SHARED_FIELD(M_RX_CMD, 3, 1)
+ SHARED_FIELD(S_TX_CMD, 2, 1)
+ SHARED_FIELD(M_TX_CMD, 1, 1)
+ SHARED_FIELD(M_START_CMD, 0, 1)
+REG32(I2CD_DEV_ADDR, 0x18) /* Slave Device Address */
+REG32(I2CD_POOL_CTRL, 0x1C) /* Pool Buffer Control */
+ SHARED_FIELD(RX_COUNT, 24, 5)
+ SHARED_FIELD(RX_SIZE, 16, 5)
+ SHARED_FIELD(TX_COUNT, 9, 5)
+ FIELD(I2CD_POOL_CTRL, OFFSET, 2, 6) /* AST2400 */
+REG32(I2CD_BYTE_BUF, 0x20) /* Transmit/Receive Byte Buffer */
+ SHARED_FIELD(RX_BUF, 8, 8)
+ SHARED_FIELD(TX_BUF, 0, 8)
+REG32(I2CD_DMA_ADDR, 0x24) /* DMA Buffer Address */
+REG32(I2CD_DMA_LEN, 0x28) /* DMA Transfer Length < 4KB */
+
+/* I2C New Mode Device (Bus) Register */
+REG32(I2CC_FUN_CTRL, 0x0)
+ FIELD(I2CC_FUN_CTRL, RB_EARLY_DONE_EN, 22, 1)
+ FIELD(I2CC_FUN_CTRL, DMA_DIS_AUTO_RECOVER, 21, 1)
+ FIELD(I2CC_FUN_CTRL, S_SAVE_ADDR, 20, 1)
+ FIELD(I2CC_FUN_CTRL, M_PKT_RETRY_CNT, 18, 2)
+ /* 17:0 shared with I2CD_FUN_CTRL[17:0] */
+REG32(I2CC_AC_TIMING, 0x04)
+REG32(I2CC_MS_TXRX_BYTE_BUF, 0x08)
+ /* 31:16 shared with I2CD_CMD[31:16] */
+ /* 15:0 shared with I2CD_BYTE_BUF[15:0] */
+REG32(I2CC_POOL_CTRL, 0x0c)
+ /* 31:0 shared with I2CD_POOL_CTRL[31:0] */
+REG32(I2CM_INTR_CTRL, 0x10)
+REG32(I2CM_INTR_STS, 0x14)
+ FIELD(I2CM_INTR_STS, PKT_STATE, 28, 4)
+ FIELD(I2CM_INTR_STS, PKT_CMD_TIMEOUT, 18, 1)
+ FIELD(I2CM_INTR_STS, PKT_CMD_FAIL, 17, 1)
+ FIELD(I2CM_INTR_STS, PKT_CMD_DONE, 16, 1)
+ FIELD(I2CM_INTR_STS, BUS_RECOVER_FAIL, 15, 1)
+ /* 14:0 shared with I2CD_INTR_STS[14:0] */
+REG32(I2CM_CMD, 0x18)
+ FIELD(I2CM_CMD, W1_CTRL, 31, 1)
+ FIELD(I2CM_CMD, PKT_DEV_ADDR, 24, 7)
+ FIELD(I2CM_CMD, HS_MASTER_MODE_LSB, 17, 3)
+ FIELD(I2CM_CMD, PKT_OP_EN, 16, 1)
+ /* 15:0 shared with I2CD_CMD[15:0] */
+REG32(I2CM_DMA_LEN, 0x1c)
+ FIELD(I2CM_DMA_LEN, RX_BUF_LEN_W1T, 31, 1)
+ FIELD(I2CM_DMA_LEN, RX_BUF_LEN, 16, 11)
+ FIELD(I2CM_DMA_LEN, TX_BUF_LEN_W1T, 15, 1)
+ FIELD(I2CM_DMA_LEN, TX_BUF_LEN, 0, 11)
+REG32(I2CS_INTR_CTRL, 0x20)
+REG32(I2CS_INTR_STS, 0x24)
+ /* 31:29 shared with I2CD_INTR_STS[31:29] */
+ FIELD(I2CS_INTR_STS, SLAVE_PARKING_STS, 24, 2)
+ FIELD(I2CS_INTR_STS, SLAVE_ADDR3_NAK, 22, 1)
+ FIELD(I2CS_INTR_STS, SLAVE_ADDR2_NAK, 21, 1)
+ FIELD(I2CS_INTR_STS, SLAVE_ADDR1_NAK, 20, 1)
+ FIELD(I2CS_INTR_STS, SLAVE_ADDR_INDICATOR, 18, 2)
+ FIELD(I2CS_INTR_STS, PKT_CMD_FAIL, 17, 1)
+ FIELD(I2CS_INTR_STS, PKT_CMD_DONE, 16, 1)
+ /* 14:0 shared with I2CD_INTR_STS[14:0] */
+REG32(I2CS_CMD, 0x28)
+ FIELD(I2CS_CMD, W1_CTRL, 31, 1)
+ FIELD(I2CS_CMD, PKT_MODE_ACTIVE_ADDR, 17, 2)
+ FIELD(I2CS_CMD, PKT_MODE_EN, 16, 1)
+ FIELD(I2CS_CMD, AUTO_NAK_INACTIVE_ADDR, 15, 1)
+ FIELD(I2CS_CMD, AUTO_NAK_ACTIVE_ADDR, 14, 1)
+ /* 13:0 shared with I2CD_CMD[13:0] */
+REG32(I2CS_DMA_LEN, 0x2c)
+ FIELD(I2CS_DMA_LEN, RX_BUF_LEN_W1T, 31, 1)
+ FIELD(I2CS_DMA_LEN, RX_BUF_LEN, 16, 11)
+ FIELD(I2CS_DMA_LEN, TX_BUF_LEN_W1T, 15, 1)
+ FIELD(I2CS_DMA_LEN, TX_BUF_LEN, 0, 11)
+REG32(I2CM_DMA_TX_ADDR, 0x30)
+ FIELD(I2CM_DMA_TX_ADDR, ADDR, 0, 31)
+REG32(I2CM_DMA_RX_ADDR, 0x34)
+ FIELD(I2CM_DMA_RX_ADDR, ADDR, 0, 31)
+REG32(I2CS_DMA_TX_ADDR, 0x38)
+ FIELD(I2CS_DMA_TX_ADDR, ADDR, 0, 31)
+REG32(I2CS_DMA_RX_ADDR, 0x3c)
+ FIELD(I2CS_DMA_RX_ADDR, ADDR, 0, 31)
+REG32(I2CS_DEV_ADDR, 0x40)
+REG32(I2CM_DMA_LEN_STS, 0x48)
+ FIELD(I2CM_DMA_LEN_STS, RX_LEN, 16, 13)
+ FIELD(I2CM_DMA_LEN_STS, TX_LEN, 0, 13)
+REG32(I2CS_DMA_LEN_STS, 0x4c)
+ FIELD(I2CS_DMA_LEN_STS, RX_LEN, 16, 13)
+ FIELD(I2CS_DMA_LEN_STS, TX_LEN, 0, 13)
+REG32(I2CC_DMA_ADDR, 0x50)
+REG32(I2CC_DMA_LEN, 0x54)
+
struct AspeedI2CState;
#define TYPE_ASPEED_I2C_BUS "aspeed.i2c.bus"
@@ -88,6 +265,96 @@ struct AspeedI2CClass {
};
+static inline bool aspeed_i2c_is_new_mode(AspeedI2CState *s)
+{
+ return FIELD_EX32(s->ctrl_global, I2C_CTRL_GLOBAL, REG_MODE);
+}
+
+static inline bool aspeed_i2c_bus_pkt_mode_en(AspeedI2CBus *bus)
+{
+ if (aspeed_i2c_is_new_mode(bus->controller)) {
+ return ARRAY_FIELD_EX32(bus->regs, I2CM_CMD, PKT_OP_EN);
+ }
+ return false;
+}
+
+static inline uint32_t aspeed_i2c_bus_ctrl_offset(AspeedI2CBus *bus)
+{
+ if (aspeed_i2c_is_new_mode(bus->controller)) {
+ return R_I2CC_FUN_CTRL;
+ }
+ return R_I2CD_FUN_CTRL;
+}
+
+static inline uint32_t aspeed_i2c_bus_cmd_offset(AspeedI2CBus *bus)
+{
+ if (aspeed_i2c_is_new_mode(bus->controller)) {
+ return R_I2CM_CMD;
+ }
+ return R_I2CD_CMD;
+}
+
+static inline uint32_t aspeed_i2c_bus_intr_ctrl_offset(AspeedI2CBus *bus)
+{
+ if (aspeed_i2c_is_new_mode(bus->controller)) {
+ return R_I2CM_INTR_CTRL;
+ }
+ return R_I2CD_INTR_CTRL;
+}
+
+static inline uint32_t aspeed_i2c_bus_intr_sts_offset(AspeedI2CBus *bus)
+{
+ if (aspeed_i2c_is_new_mode(bus->controller)) {
+ return R_I2CM_INTR_STS;
+ }
+ return R_I2CD_INTR_STS;
+}
+
+static inline uint32_t aspeed_i2c_bus_pool_ctrl_offset(AspeedI2CBus *bus)
+{
+ if (aspeed_i2c_is_new_mode(bus->controller)) {
+ return R_I2CC_POOL_CTRL;
+ }
+ return R_I2CD_POOL_CTRL;
+}
+
+static inline uint32_t aspeed_i2c_bus_byte_buf_offset(AspeedI2CBus *bus)
+{
+ if (aspeed_i2c_is_new_mode(bus->controller)) {
+ return R_I2CC_MS_TXRX_BYTE_BUF;
+ }
+ return R_I2CD_BYTE_BUF;
+}
+
+static inline uint32_t aspeed_i2c_bus_dma_len_offset(AspeedI2CBus *bus)
+{
+ if (aspeed_i2c_is_new_mode(bus->controller)) {
+ return R_I2CC_DMA_LEN;
+ }
+ return R_I2CD_DMA_LEN;
+}
+
+static inline uint32_t aspeed_i2c_bus_dma_addr_offset(AspeedI2CBus *bus)
+{
+ if (aspeed_i2c_is_new_mode(bus->controller)) {
+ return R_I2CC_DMA_ADDR;
+ }
+ return R_I2CD_DMA_ADDR;
+}
+
+static inline bool aspeed_i2c_bus_is_master(AspeedI2CBus *bus)
+{
+ return SHARED_ARRAY_FIELD_EX32(bus->regs, aspeed_i2c_bus_ctrl_offset(bus),
+ MASTER_EN);
+}
+
+static inline bool aspeed_i2c_bus_is_enabled(AspeedI2CBus *bus)
+{
+ uint32_t ctrl_reg = aspeed_i2c_bus_ctrl_offset(bus);
+ return SHARED_ARRAY_FIELD_EX32(bus->regs, ctrl_reg, MASTER_EN) ||
+ SHARED_ARRAY_FIELD_EX32(bus->regs, ctrl_reg, SLAVE_EN);
+}
+
I2CBus *aspeed_i2c_get_bus(AspeedI2CState *s, int busnr);
#endif /* ASPEED_I2C_H */
diff --git a/hw/i2c/aspeed_i2c.c b/hw/i2c/aspeed_i2c.c
index 0e0cd5bec8d8..1556b2da995b 100644
--- a/hw/i2c/aspeed_i2c.c
+++ b/hw/i2c/aspeed_i2c.c
@@ -31,272 +31,6 @@
#include "hw/registerfields.h"
#include "trace.h"
-/* Tx State Machine */
-#define I2CD_TX_STATE_MASK 0xf
-#define I2CD_IDLE 0x0
-#define I2CD_MACTIVE 0x8
-#define I2CD_MSTART 0x9
-#define I2CD_MSTARTR 0xa
-#define I2CD_MSTOP 0xb
-#define I2CD_MTXD 0xc
-#define I2CD_MRXACK 0xd
-#define I2CD_MRXD 0xe
-#define I2CD_MTXACK 0xf
-#define I2CD_SWAIT 0x1
-#define I2CD_SRXD 0x4
-#define I2CD_STXACK 0x5
-#define I2CD_STXD 0x6
-#define I2CD_SRXACK 0x7
-#define I2CD_RECOVER 0x3
-
-/* I2C Global Register */
-REG32(I2C_CTRL_STATUS, 0x0) /* Device Interrupt Status */
-REG32(I2C_CTRL_ASSIGN, 0x8) /* Device Interrupt Target Assignment */
-REG32(I2C_CTRL_GLOBAL, 0xC) /* Global Control Register */
- FIELD(I2C_CTRL_GLOBAL, REG_MODE, 2, 1)
- FIELD(I2C_CTRL_GLOBAL, SRAM_EN, 0, 1)
-REG32(I2C_CTRL_NEW_CLK_DIVIDER, 0x10) /* New mode clock divider */
-
-/* I2C Old Mode Device (Bus) Register */
-REG32(I2CD_FUN_CTRL, 0x0) /* I2CD Function Control */
- FIELD(I2CD_FUN_CTRL, POOL_PAGE_SEL, 20, 3) /* AST2400 */
- SHARED_FIELD(M_SDA_LOCK_EN, 16, 1)
- SHARED_FIELD(MULTI_MASTER_DIS, 15, 1)
- SHARED_FIELD(M_SCL_DRIVE_EN, 14, 1)
- SHARED_FIELD(MSB_STS, 9, 1)
- SHARED_FIELD(SDA_DRIVE_IT_EN, 8, 1)
- SHARED_FIELD(M_SDA_DRIVE_IT_EN, 7, 1)
- SHARED_FIELD(M_HIGH_SPEED_EN, 6, 1)
- SHARED_FIELD(DEF_ADDR_EN, 5, 1)
- SHARED_FIELD(DEF_ALERT_EN, 4, 1)
- SHARED_FIELD(DEF_ARP_EN, 3, 1)
- SHARED_FIELD(DEF_GCALL_EN, 2, 1)
- SHARED_FIELD(SLAVE_EN, 1, 1)
- SHARED_FIELD(MASTER_EN, 0, 1)
-REG32(I2CD_AC_TIMING1, 0x04) /* Clock and AC Timing Control #1 */
-REG32(I2CD_AC_TIMING2, 0x08) /* Clock and AC Timing Control #2 */
-REG32(I2CD_INTR_CTRL, 0x0C) /* I2CD Interrupt Control */
-REG32(I2CD_INTR_STS, 0x10) /* I2CD Interrupt Status */
- SHARED_FIELD(SLAVE_ADDR_MATCH, 31, 1) /* 0: addr1 1: addr2 */
- SHARED_FIELD(SLAVE_ADDR_RX_PENDING, 29, 1)
- SHARED_FIELD(SLAVE_INACTIVE_TIMEOUT, 15, 1)
- SHARED_FIELD(SDA_DL_TIMEOUT, 14, 1)
- SHARED_FIELD(BUS_RECOVER_DONE, 13, 1)
- SHARED_FIELD(SMBUS_ALERT, 12, 1) /* Bus [0-3] only */
- FIELD(I2CD_INTR_STS, SMBUS_ARP_ADDR, 11, 1) /* Removed */
- FIELD(I2CD_INTR_STS, SMBUS_DEV_ALERT_ADDR, 10, 1) /* Removed */
- FIELD(I2CD_INTR_STS, SMBUS_DEF_ADDR, 9, 1) /* Removed */
- FIELD(I2CD_INTR_STS, GCALL_ADDR, 8, 1) /* Removed */
- FIELD(I2CD_INTR_STS, SLAVE_ADDR_RX_MATCH, 7, 1) /* use RX_DONE */
- SHARED_FIELD(SCL_TIMEOUT, 6, 1)
- SHARED_FIELD(ABNORMAL, 5, 1)
- SHARED_FIELD(NORMAL_STOP, 4, 1)
- SHARED_FIELD(ARBIT_LOSS, 3, 1)
- SHARED_FIELD(RX_DONE, 2, 1)
- SHARED_FIELD(TX_NAK, 1, 1)
- SHARED_FIELD(TX_ACK, 0, 1)
-REG32(I2CD_CMD, 0x14) /* I2CD Command/Status */
- SHARED_FIELD(SDA_OE, 28, 1)
- SHARED_FIELD(SDA_O, 27, 1)
- SHARED_FIELD(SCL_OE, 26, 1)
- SHARED_FIELD(SCL_O, 25, 1)
- SHARED_FIELD(TX_TIMING, 23, 2)
- SHARED_FIELD(TX_STATE, 19, 4)
- SHARED_FIELD(SCL_LINE_STS, 18, 1)
- SHARED_FIELD(SDA_LINE_STS, 17, 1)
- SHARED_FIELD(BUS_BUSY_STS, 16, 1)
- SHARED_FIELD(SDA_OE_OUT_DIR, 15, 1)
- SHARED_FIELD(SDA_O_OUT_DIR, 14, 1)
- SHARED_FIELD(SCL_OE_OUT_DIR, 13, 1)
- SHARED_FIELD(SCL_O_OUT_DIR, 12, 1)
- SHARED_FIELD(BUS_RECOVER_CMD_EN, 11, 1)
- SHARED_FIELD(S_ALT_EN, 10, 1)
- /* Command Bits */
- SHARED_FIELD(RX_DMA_EN, 9, 1)
- SHARED_FIELD(TX_DMA_EN, 8, 1)
- SHARED_FIELD(RX_BUFF_EN, 7, 1)
- SHARED_FIELD(TX_BUFF_EN, 6, 1)
- SHARED_FIELD(M_STOP_CMD, 5, 1)
- SHARED_FIELD(M_S_RX_CMD_LAST, 4, 1)
- SHARED_FIELD(M_RX_CMD, 3, 1)
- SHARED_FIELD(S_TX_CMD, 2, 1)
- SHARED_FIELD(M_TX_CMD, 1, 1)
- SHARED_FIELD(M_START_CMD, 0, 1)
-REG32(I2CD_DEV_ADDR, 0x18) /* Slave Device Address */
-REG32(I2CD_POOL_CTRL, 0x1C) /* Pool Buffer Control */
- SHARED_FIELD(RX_COUNT, 24, 5)
- SHARED_FIELD(RX_SIZE, 16, 5)
- SHARED_FIELD(TX_COUNT, 9, 5)
- FIELD(I2CD_POOL_CTRL, OFFSET, 2, 6) /* AST2400 */
-REG32(I2CD_BYTE_BUF, 0x20) /* Transmit/Receive Byte Buffer */
- SHARED_FIELD(RX_BUF, 8, 8)
- SHARED_FIELD(TX_BUF, 0, 8)
-REG32(I2CD_DMA_ADDR, 0x24) /* DMA Buffer Address */
-REG32(I2CD_DMA_LEN, 0x28) /* DMA Transfer Length < 4KB */
-
-/* I2C New Mode Device (Bus) Register */
-REG32(I2CC_FUN_CTRL, 0x0)
- FIELD(I2CC_FUN_CTRL, RB_EARLY_DONE_EN, 22, 1)
- FIELD(I2CC_FUN_CTRL, DMA_DIS_AUTO_RECOVER, 21, 1)
- FIELD(I2CC_FUN_CTRL, S_SAVE_ADDR, 20, 1)
- FIELD(I2CC_FUN_CTRL, M_PKT_RETRY_CNT, 18, 2)
- /* 17:0 shared with I2CD_FUN_CTRL[17:0] */
-REG32(I2CC_AC_TIMING, 0x04)
-REG32(I2CC_MS_TXRX_BYTE_BUF, 0x08)
- /* 31:16 shared with I2CD_CMD[31:16] */
- /* 15:0 shared with I2CD_BYTE_BUF[15:0] */
-REG32(I2CC_POOL_CTRL, 0x0c)
- /* 31:0 shared with I2CD_POOL_CTRL[31:0] */
-REG32(I2CM_INTR_CTRL, 0x10)
-REG32(I2CM_INTR_STS, 0x14)
- FIELD(I2CM_INTR_STS, PKT_STATE, 28, 4)
- FIELD(I2CM_INTR_STS, PKT_CMD_TIMEOUT, 18, 1)
- FIELD(I2CM_INTR_STS, PKT_CMD_FAIL, 17, 1)
- FIELD(I2CM_INTR_STS, PKT_CMD_DONE, 16, 1)
- FIELD(I2CM_INTR_STS, BUS_RECOVER_FAIL, 15, 1)
- /* 14:0 shared with I2CD_INTR_STS[14:0] */
-REG32(I2CM_CMD, 0x18)
- FIELD(I2CM_CMD, W1_CTRL, 31, 1)
- FIELD(I2CM_CMD, PKT_DEV_ADDR, 24, 7)
- FIELD(I2CM_CMD, HS_MASTER_MODE_LSB, 17, 3)
- FIELD(I2CM_CMD, PKT_OP_EN, 16, 1)
- /* 15:0 shared with I2CD_CMD[15:0] */
-REG32(I2CM_DMA_LEN, 0x1c)
- FIELD(I2CM_DMA_LEN, RX_BUF_LEN_W1T, 31, 1)
- FIELD(I2CM_DMA_LEN, RX_BUF_LEN, 16, 11)
- FIELD(I2CM_DMA_LEN, TX_BUF_LEN_W1T, 15, 1)
- FIELD(I2CM_DMA_LEN, TX_BUF_LEN, 0, 11)
-REG32(I2CS_INTR_CTRL, 0x20)
-REG32(I2CS_INTR_STS, 0x24)
- /* 31:29 shared with I2CD_INTR_STS[31:29] */
- FIELD(I2CS_INTR_STS, SLAVE_PARKING_STS, 24, 2)
- FIELD(I2CS_INTR_STS, SLAVE_ADDR3_NAK, 22, 1)
- FIELD(I2CS_INTR_STS, SLAVE_ADDR2_NAK, 21, 1)
- FIELD(I2CS_INTR_STS, SLAVE_ADDR1_NAK, 20, 1)
- FIELD(I2CS_INTR_STS, SLAVE_ADDR_INDICATOR, 18, 2)
- FIELD(I2CS_INTR_STS, PKT_CMD_FAIL, 17, 1)
- FIELD(I2CS_INTR_STS, PKT_CMD_DONE, 16, 1)
- /* 14:0 shared with I2CD_INTR_STS[14:0] */
-REG32(I2CS_CMD, 0x28)
- FIELD(I2CS_CMD, W1_CTRL, 31, 1)
- FIELD(I2CS_CMD, PKT_MODE_ACTIVE_ADDR, 17, 2)
- FIELD(I2CS_CMD, PKT_MODE_EN, 16, 1)
- FIELD(I2CS_CMD, AUTO_NAK_INACTIVE_ADDR, 15, 1)
- FIELD(I2CS_CMD, AUTO_NAK_ACTIVE_ADDR, 14, 1)
- /* 13:0 shared with I2CD_CMD[13:0] */
-REG32(I2CS_DMA_LEN, 0x2c)
- FIELD(I2CS_DMA_LEN, RX_BUF_LEN_W1T, 31, 1)
- FIELD(I2CS_DMA_LEN, RX_BUF_LEN, 16, 11)
- FIELD(I2CS_DMA_LEN, TX_BUF_LEN_W1T, 15, 1)
- FIELD(I2CS_DMA_LEN, TX_BUF_LEN, 0, 11)
-REG32(I2CM_DMA_TX_ADDR, 0x30)
- FIELD(I2CM_DMA_TX_ADDR, ADDR, 0, 31)
-REG32(I2CM_DMA_RX_ADDR, 0x34)
- FIELD(I2CM_DMA_RX_ADDR, ADDR, 0, 31)
-REG32(I2CS_DMA_TX_ADDR, 0x38)
- FIELD(I2CS_DMA_TX_ADDR, ADDR, 0, 31)
-REG32(I2CS_DMA_RX_ADDR, 0x3c)
- FIELD(I2CS_DMA_RX_ADDR, ADDR, 0, 31)
-REG32(I2CS_DEV_ADDR, 0x40)
-REG32(I2CM_DMA_LEN_STS, 0x48)
- FIELD(I2CM_DMA_LEN_STS, RX_LEN, 16, 13)
- FIELD(I2CM_DMA_LEN_STS, TX_LEN, 0, 13)
-REG32(I2CS_DMA_LEN_STS, 0x4c)
- FIELD(I2CS_DMA_LEN_STS, RX_LEN, 16, 13)
- FIELD(I2CS_DMA_LEN_STS, TX_LEN, 0, 13)
-REG32(I2CC_DMA_ADDR, 0x50)
-REG32(I2CC_DMA_LEN, 0x54)
-
-static inline bool aspeed_i2c_is_new_mode(AspeedI2CState *s)
-{
- return FIELD_EX32(s->ctrl_global, I2C_CTRL_GLOBAL, REG_MODE);
-}
-
-static inline bool aspeed_i2c_bus_pkt_mode_en(AspeedI2CBus *bus)
-{
- if (aspeed_i2c_is_new_mode(bus->controller)) {
- return ARRAY_FIELD_EX32(bus->regs, I2CM_CMD, PKT_OP_EN);
- }
- return false;
-}
-
-static inline uint32_t aspeed_i2c_bus_ctrl_offset(AspeedI2CBus *bus)
-{
- if (aspeed_i2c_is_new_mode(bus->controller)) {
- return R_I2CC_FUN_CTRL;
- }
- return R_I2CD_FUN_CTRL;
-}
-
-static inline uint32_t aspeed_i2c_bus_cmd_offset(AspeedI2CBus *bus)
-{
- if (aspeed_i2c_is_new_mode(bus->controller)) {
- return R_I2CM_CMD;
- }
- return R_I2CD_CMD;
-}
-
-static inline uint32_t aspeed_i2c_bus_intr_ctrl_offset(AspeedI2CBus *bus)
-{
- if (aspeed_i2c_is_new_mode(bus->controller)) {
- return R_I2CM_INTR_CTRL;
- }
- return R_I2CD_INTR_CTRL;
-}
-
-static inline uint32_t aspeed_i2c_bus_intr_sts_offset(AspeedI2CBus *bus)
-{
- if (aspeed_i2c_is_new_mode(bus->controller)) {
- return R_I2CM_INTR_STS;
- }
- return R_I2CD_INTR_STS;
-}
-
-static inline uint32_t aspeed_i2c_bus_pool_ctrl_offset(AspeedI2CBus *bus)
-{
- if (aspeed_i2c_is_new_mode(bus->controller)) {
- return R_I2CC_POOL_CTRL;
- }
- return R_I2CD_POOL_CTRL;
-}
-
-static inline uint32_t aspeed_i2c_bus_byte_buf_offset(AspeedI2CBus *bus)
-{
- if (aspeed_i2c_is_new_mode(bus->controller)) {
- return R_I2CC_MS_TXRX_BYTE_BUF;
- }
- return R_I2CD_BYTE_BUF;
-}
-
-static inline uint32_t aspeed_i2c_bus_dma_len_offset(AspeedI2CBus *bus)
-{
- if (aspeed_i2c_is_new_mode(bus->controller)) {
- return R_I2CC_DMA_LEN;
- }
- return R_I2CD_DMA_LEN;
-}
-
-static inline uint32_t aspeed_i2c_bus_dma_addr_offset(AspeedI2CBus *bus)
-{
- if (aspeed_i2c_is_new_mode(bus->controller)) {
- return R_I2CC_DMA_ADDR;
- }
- return R_I2CD_DMA_ADDR;
-}
-
-static inline bool aspeed_i2c_bus_is_master(AspeedI2CBus *bus)
-{
- return SHARED_ARRAY_FIELD_EX32(bus->regs, aspeed_i2c_bus_ctrl_offset(bus),
- MASTER_EN);
-}
-
-static inline bool aspeed_i2c_bus_is_enabled(AspeedI2CBus *bus)
-{
- uint32_t ctrl_reg = aspeed_i2c_bus_ctrl_offset(bus);
- return SHARED_ARRAY_FIELD_EX32(bus->regs, ctrl_reg, MASTER_EN) ||
- SHARED_ARRAY_FIELD_EX32(bus->regs, ctrl_reg, SLAVE_EN);
-}
-
static inline void aspeed_i2c_bus_raise_interrupt(AspeedI2CBus *bus)
{
AspeedI2CClass *aic = ASPEED_I2C_GET_CLASS(bus->controller);
--
2.35.3
^ permalink raw reply related [flat|nested] 18+ messages in thread* [PATCH v2 13/17] aspeed/i2c: Add ast1030 controller models
2022-06-13 13:25 [PATCH v2 00/17] aspeed: Extend ast2600 I2C model with new mode Cédric Le Goater
` (11 preceding siblings ...)
2022-06-13 13:25 ` [PATCH v2 12/17] aspeed: i2c: Move regs and helpers to header file Cédric Le Goater
@ 2022-06-13 13:25 ` Cédric Le Goater
2022-06-13 13:25 ` [PATCH v2 14/17] aspeed: Add I2C buses to AST1030 model Cédric Le Goater
` (3 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: Cédric Le Goater @ 2022-06-13 13:25 UTC (permalink / raw)
To: qemu-arm, qemu-devel
Cc: Peter Maydell, Joe Komlodi, Troy Lee, Jamin Lin, Steven Lee,
Klaus Jensen, Peter Delevoryas, Corey Minyard, Jonathan Cameron,
Damien Hedde, Andrew Jeffery, Joel Stanley, Cleber Rosa,
Philippe Mathieu-Daudé, Wainer dos Santos Moschetta,
Beraldo Leal, Cédric Le Goater
Based on :
https://lore.kernel.org/qemu-devel/20220324100439.478317-2-troy_lee@aspeedtech.com/
Cc: Troy Lee <troy_lee@aspeedtech.com>
Cc: Jamin Lin <jamin_lin@aspeedtech.com>
Cc: Steven Lee <steven_lee@aspeedtech.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
include/hw/i2c/aspeed_i2c.h | 1 +
hw/i2c/aspeed_i2c.c | 24 ++++++++++++++++++++++++
2 files changed, 25 insertions(+)
diff --git a/include/hw/i2c/aspeed_i2c.h b/include/hw/i2c/aspeed_i2c.h
index 8ea9f6671ec8..0cd245a00963 100644
--- a/include/hw/i2c/aspeed_i2c.h
+++ b/include/hw/i2c/aspeed_i2c.h
@@ -30,6 +30,7 @@
#define TYPE_ASPEED_2400_I2C TYPE_ASPEED_I2C "-ast2400"
#define TYPE_ASPEED_2500_I2C TYPE_ASPEED_I2C "-ast2500"
#define TYPE_ASPEED_2600_I2C TYPE_ASPEED_I2C "-ast2600"
+#define TYPE_ASPEED_1030_I2C TYPE_ASPEED_I2C "-ast1030"
OBJECT_DECLARE_TYPE(AspeedI2CState, AspeedI2CClass, ASPEED_I2C)
#define ASPEED_I2C_NR_BUSSES 16
diff --git a/hw/i2c/aspeed_i2c.c b/hw/i2c/aspeed_i2c.c
index 1556b2da995b..4c798b70e4c3 100644
--- a/hw/i2c/aspeed_i2c.c
+++ b/hw/i2c/aspeed_i2c.c
@@ -1176,6 +1176,29 @@ static const TypeInfo aspeed_2600_i2c_info = {
.class_init = aspeed_2600_i2c_class_init,
};
+static void aspeed_1030_i2c_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ AspeedI2CClass *aic = ASPEED_I2C_CLASS(klass);
+
+ dc->desc = "ASPEED 1030 I2C Controller";
+
+ aic->num_busses = 14;
+ aic->reg_size = 0x80;
+ aic->gap = -1; /* no gap */
+ aic->bus_get_irq = aspeed_2600_i2c_bus_get_irq;
+ aic->pool_size = 0x200;
+ aic->pool_base = 0xC00;
+ aic->bus_pool_base = aspeed_2600_i2c_bus_pool_base;
+ aic->has_dma = true;
+}
+
+static const TypeInfo aspeed_1030_i2c_info = {
+ .name = TYPE_ASPEED_1030_I2C,
+ .parent = TYPE_ASPEED_I2C,
+ .class_init = aspeed_1030_i2c_class_init,
+};
+
static void aspeed_i2c_register_types(void)
{
type_register_static(&aspeed_i2c_bus_info);
@@ -1183,6 +1206,7 @@ static void aspeed_i2c_register_types(void)
type_register_static(&aspeed_2400_i2c_info);
type_register_static(&aspeed_2500_i2c_info);
type_register_static(&aspeed_2600_i2c_info);
+ type_register_static(&aspeed_1030_i2c_info);
}
type_init(aspeed_i2c_register_types)
--
2.35.3
^ permalink raw reply related [flat|nested] 18+ messages in thread* [PATCH v2 14/17] aspeed: Add I2C buses to AST1030 model
2022-06-13 13:25 [PATCH v2 00/17] aspeed: Extend ast2600 I2C model with new mode Cédric Le Goater
` (12 preceding siblings ...)
2022-06-13 13:25 ` [PATCH v2 13/17] aspeed/i2c: Add ast1030 controller models Cédric Le Goater
@ 2022-06-13 13:25 ` Cédric Le Goater
2022-06-13 13:25 ` [PATCH v2 15/17] hw/i2c/aspeed: rework raise interrupt trace event Cédric Le Goater
` (2 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: Cédric Le Goater @ 2022-06-13 13:25 UTC (permalink / raw)
To: qemu-arm, qemu-devel
Cc: Peter Maydell, Joe Komlodi, Troy Lee, Jamin Lin, Steven Lee,
Klaus Jensen, Peter Delevoryas, Corey Minyard, Jonathan Cameron,
Damien Hedde, Andrew Jeffery, Joel Stanley, Cleber Rosa,
Philippe Mathieu-Daudé, Wainer dos Santos Moschetta,
Beraldo Leal, Cédric Le Goater
From: Troy Lee <troy_lee@aspeedtech.com>
Instantiate the I2C buses in AST1030 model and create two slave device
for ast1030-evb.
Signed-off-by: Troy Lee <troy_lee@aspeedtech.com>
Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
Signed-off-by: Steven Lee <steven_lee@aspeedtech.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
[ clg : - adapted to current AST1030 upstream models
- changed AST2600 to AST1030 in comment
- fixed typo in commit log ]
Message-Id: <20220324100439.478317-3-troy_lee@aspeedtech.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
hw/arm/aspeed.c | 13 +++++++++++++
hw/arm/aspeed_ast10x0.c | 18 ++++++++++++++++++
2 files changed, 31 insertions(+)
diff --git a/hw/arm/aspeed.c b/hw/arm/aspeed.c
index c49772e2eb59..a06f7c1b62a9 100644
--- a/hw/arm/aspeed.c
+++ b/hw/arm/aspeed.c
@@ -1397,6 +1397,18 @@ static void aspeed_minibmc_machine_init(MachineState *machine)
AST1030_INTERNAL_FLASH_SIZE);
}
+static void ast1030_evb_i2c_init(AspeedMachineState *bmc)
+{
+ AspeedSoCState *soc = &bmc->soc;
+
+ /* U10 24C08 connects to SDA/SCL Groupt 1 by default */
+ uint8_t *eeprom_buf = g_malloc0(32 * 1024);
+ smbus_eeprom_init_one(aspeed_i2c_get_bus(&soc->i2c, 0), 0x50, eeprom_buf);
+
+ /* U11 LM75 connects to SDA/SCL Group 2 by default */
+ i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 1), "tmp105", 0x4d);
+}
+
static void aspeed_minibmc_machine_ast1030_evb_class_init(ObjectClass *oc,
void *data)
{
@@ -1408,6 +1420,7 @@ static void aspeed_minibmc_machine_ast1030_evb_class_init(ObjectClass *oc,
amc->hw_strap1 = 0;
amc->hw_strap2 = 0;
mc->init = aspeed_minibmc_machine_init;
+ amc->i2c_init = ast1030_evb_i2c_init;
mc->default_ram_size = 0;
mc->default_cpus = mc->min_cpus = mc->max_cpus = 1;
amc->fmc_model = "sst25vf032b";
diff --git a/hw/arm/aspeed_ast10x0.c b/hw/arm/aspeed_ast10x0.c
index d53454168403..5df480a21f39 100644
--- a/hw/arm/aspeed_ast10x0.c
+++ b/hw/arm/aspeed_ast10x0.c
@@ -114,6 +114,9 @@ static void aspeed_soc_ast1030_init(Object *obj)
object_property_add_alias(obj, "hw-strap1", OBJECT(&s->scu), "hw-strap1");
object_property_add_alias(obj, "hw-strap2", OBJECT(&s->scu), "hw-strap2");
+ snprintf(typename, sizeof(typename), "aspeed.i2c-%s", socname);
+ object_initialize_child(obj, "i2c", &s->i2c, typename);
+
snprintf(typename, sizeof(typename), "aspeed.timer-%s", socname);
object_initialize_child(obj, "timerctrl", &s->timerctrl, typename);
@@ -188,6 +191,21 @@ static void aspeed_soc_ast1030_realize(DeviceState *dev_soc, Error **errp)
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->scu), 0, sc->memmap[ASPEED_DEV_SCU]);
+ /* I2C */
+
+ object_property_set_link(OBJECT(&s->i2c), "dram", OBJECT(&s->sram),
+ &error_abort);
+ if (!sysbus_realize(SYS_BUS_DEVICE(&s->i2c), errp)) {
+ return;
+ }
+ sysbus_mmio_map(SYS_BUS_DEVICE(&s->i2c), 0, sc->memmap[ASPEED_DEV_I2C]);
+ for (i = 0; i < ASPEED_I2C_GET_CLASS(&s->i2c)->num_busses; i++) {
+ qemu_irq irq = qdev_get_gpio_in(DEVICE(&s->armv7m),
+ sc->irqmap[ASPEED_DEV_I2C] + i);
+ /* The AST1030 I2C controller has one IRQ per bus. */
+ sysbus_connect_irq(SYS_BUS_DEVICE(&s->i2c.busses[i]), 0, irq);
+ }
+
/* LPC */
if (!sysbus_realize(SYS_BUS_DEVICE(&s->lpc), errp)) {
return;
--
2.35.3
^ permalink raw reply related [flat|nested] 18+ messages in thread* [PATCH v2 15/17] hw/i2c/aspeed: rework raise interrupt trace event
2022-06-13 13:25 [PATCH v2 00/17] aspeed: Extend ast2600 I2C model with new mode Cédric Le Goater
` (13 preceding siblings ...)
2022-06-13 13:25 ` [PATCH v2 14/17] aspeed: Add I2C buses to AST1030 model Cédric Le Goater
@ 2022-06-13 13:25 ` Cédric Le Goater
2022-06-13 13:25 ` [PATCH v2 16/17] hw/i2c/aspeed: add DEV_ADDR in old register mode Cédric Le Goater
2022-06-13 13:25 ` [PATCH v2 17/17] aspeed/i2c: Enable SLAVE_ADDR_RX_MATCH always Cédric Le Goater
16 siblings, 0 replies; 18+ messages in thread
From: Cédric Le Goater @ 2022-06-13 13:25 UTC (permalink / raw)
To: qemu-arm, qemu-devel
Cc: Peter Maydell, Joe Komlodi, Troy Lee, Jamin Lin, Steven Lee,
Klaus Jensen, Peter Delevoryas, Corey Minyard, Jonathan Cameron,
Damien Hedde, Andrew Jeffery, Joel Stanley, Cleber Rosa,
Philippe Mathieu-Daudé, Wainer dos Santos Moschetta,
Beraldo Leal, Cédric Le Goater
From: Klaus Jensen <k.jensen@samsung.com>
Build a single string instead of having several parameters on the trace
event.
Suggested-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
[ clg: simplified trace buffer creation ]
Message-Id: <20220601210831.67259-2-its@irrelevant.dk>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
hw/i2c/aspeed_i2c.c | 34 ++++++++++++++++++++++------------
hw/i2c/trace-events | 2 +-
2 files changed, 23 insertions(+), 13 deletions(-)
diff --git a/hw/i2c/aspeed_i2c.c b/hw/i2c/aspeed_i2c.c
index 4c798b70e4c3..43ac9491ec36 100644
--- a/hw/i2c/aspeed_i2c.c
+++ b/hw/i2c/aspeed_i2c.c
@@ -21,6 +21,7 @@
#include "qemu/osdep.h"
#include "hw/sysbus.h"
#include "migration/vmstate.h"
+#include "qemu/cutils.h"
#include "qemu/log.h"
#include "qemu/module.h"
#include "qemu/error-report.h"
@@ -38,23 +39,32 @@ static inline void aspeed_i2c_bus_raise_interrupt(AspeedI2CBus *bus)
uint32_t intr_ctrl_reg = aspeed_i2c_bus_intr_ctrl_offset(bus);
bool raise_irq;
- trace_aspeed_i2c_bus_raise_interrupt(bus->regs[reg_intr_sts],
- aspeed_i2c_bus_pkt_mode_en(bus) &&
- ARRAY_FIELD_EX32(bus->regs, I2CM_INTR_STS, PKT_CMD_DONE) ?
- "pktdone|" : "",
- SHARED_ARRAY_FIELD_EX32(bus->regs, reg_intr_sts, TX_NAK) ? "nak|" : "",
- SHARED_ARRAY_FIELD_EX32(bus->regs, reg_intr_sts, TX_ACK) ? "ack|" : "",
- SHARED_ARRAY_FIELD_EX32(bus->regs, reg_intr_sts, RX_DONE) ? "done|"
- : "",
- SHARED_ARRAY_FIELD_EX32(bus->regs, reg_intr_sts, NORMAL_STOP) ?
- "normal|" : "",
- SHARED_ARRAY_FIELD_EX32(bus->regs, reg_intr_sts, ABNORMAL) ? "abnormal"
- : "");
+ if (trace_event_get_state_backends(TRACE_ASPEED_I2C_BUS_RAISE_INTERRUPT)) {
+ g_autofree char *buf = g_strdup_printf("%s%s%s%s%s%s",
+ aspeed_i2c_bus_pkt_mode_en(bus) &&
+ ARRAY_FIELD_EX32(bus->regs, I2CM_INTR_STS, PKT_CMD_DONE) ?
+ "pktdone|" : "",
+ SHARED_ARRAY_FIELD_EX32(bus->regs, reg_intr_sts, TX_NAK) ?
+ "nak|" : "",
+ SHARED_ARRAY_FIELD_EX32(bus->regs, reg_intr_sts, TX_ACK) ?
+ "ack|" : "",
+ SHARED_ARRAY_FIELD_EX32(bus->regs, reg_intr_sts, RX_DONE) ?
+ "done|" : "",
+ SHARED_ARRAY_FIELD_EX32(bus->regs, reg_intr_sts, NORMAL_STOP) ?
+ "normal|" : "",
+ SHARED_ARRAY_FIELD_EX32(bus->regs, reg_intr_sts, ABNORMAL) ?
+ "abnormal" : "");
+
+ trace_aspeed_i2c_bus_raise_interrupt(bus->regs[reg_intr_sts], buf);
+ }
+
raise_irq = bus->regs[reg_intr_sts] & bus->regs[intr_ctrl_reg];
+
/* In packet mode we don't mask off INTR_STS */
if (!aspeed_i2c_bus_pkt_mode_en(bus)) {
bus->regs[reg_intr_sts] &= bus->regs[intr_ctrl_reg];
}
+
if (raise_irq) {
bus->controller->intr_status |= 1 << bus->id;
qemu_irq_raise(aic->bus_get_irq(bus));
diff --git a/hw/i2c/trace-events b/hw/i2c/trace-events
index 85e4bddff936..209275ed2dc8 100644
--- a/hw/i2c/trace-events
+++ b/hw/i2c/trace-events
@@ -9,7 +9,7 @@ i2c_recv(uint8_t address, uint8_t data) "recv(addr:0x%02x) data:0x%02x"
# aspeed_i2c.c
aspeed_i2c_bus_cmd(uint32_t cmd, const char *cmd_flags, uint32_t count, uint32_t intr_status) "handling cmd=0x%x %s count=%d intr=0x%x"
-aspeed_i2c_bus_raise_interrupt(uint32_t intr_status, const char *str1, const char *str2, const char *str3, const char *str4, const char *str5, const char *str6) "handled intr=0x%x %s%s%s%s%s%s"
+aspeed_i2c_bus_raise_interrupt(uint32_t intr_status, const char *s) "handled intr=0x%x %s"
aspeed_i2c_bus_read(uint32_t busid, uint64_t offset, unsigned size, uint64_t value) "bus[%d]: To 0x%" PRIx64 " of size %u: 0x%" PRIx64
aspeed_i2c_bus_write(uint32_t busid, uint64_t offset, unsigned size, uint64_t value) "bus[%d]: To 0x%" PRIx64 " of size %u: 0x%" PRIx64
aspeed_i2c_bus_send(const char *mode, int i, int count, uint8_t byte) "%s send %d/%d 0x%02x"
--
2.35.3
^ permalink raw reply related [flat|nested] 18+ messages in thread* [PATCH v2 16/17] hw/i2c/aspeed: add DEV_ADDR in old register mode
2022-06-13 13:25 [PATCH v2 00/17] aspeed: Extend ast2600 I2C model with new mode Cédric Le Goater
` (14 preceding siblings ...)
2022-06-13 13:25 ` [PATCH v2 15/17] hw/i2c/aspeed: rework raise interrupt trace event Cédric Le Goater
@ 2022-06-13 13:25 ` Cédric Le Goater
2022-06-13 13:25 ` [PATCH v2 17/17] aspeed/i2c: Enable SLAVE_ADDR_RX_MATCH always Cédric Le Goater
16 siblings, 0 replies; 18+ messages in thread
From: Cédric Le Goater @ 2022-06-13 13:25 UTC (permalink / raw)
To: qemu-arm, qemu-devel
Cc: Peter Maydell, Joe Komlodi, Troy Lee, Jamin Lin, Steven Lee,
Klaus Jensen, Peter Delevoryas, Corey Minyard, Jonathan Cameron,
Damien Hedde, Andrew Jeffery, Joel Stanley, Cleber Rosa,
Philippe Mathieu-Daudé, Wainer dos Santos Moschetta,
Beraldo Leal, Cédric Le Goater
From: Klaus Jensen <k.jensen@samsung.com>
Add support for writing and reading the device address register in old
register mode.
On the AST2400 (only 1 slave address)
* no upper bits
On the AST2500 (2 possible slave addresses),
* bit[31] : Slave Address match indicator
* bit[30] : Slave Address Receiving pending
On the AST2600 (3 possible slave addresses),
* bit[31-30] : Slave Address match indicator
* bit[29] : Slave Address Receiving pending
The model could be more precise to take into account all fields but
since the Linux driver is masking the register value being set, it
should be fine. See commit 3fb2e2aeafb2 ("i2c: aspeed: disable
additional device addresses on ast2[56]xx") from Zeiv. This can be
addressed later.
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
[ clg: add details to commit log ]
Message-Id: <20220601210831.67259-3-its@irrelevant.dk>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
include/hw/i2c/aspeed_i2c.h | 8 ++++++++
hw/i2c/aspeed_i2c.c | 4 ++--
2 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/include/hw/i2c/aspeed_i2c.h b/include/hw/i2c/aspeed_i2c.h
index 0cd245a00963..1398befc104d 100644
--- a/include/hw/i2c/aspeed_i2c.h
+++ b/include/hw/i2c/aspeed_i2c.h
@@ -295,6 +295,14 @@ static inline uint32_t aspeed_i2c_bus_cmd_offset(AspeedI2CBus *bus)
return R_I2CD_CMD;
}
+static inline uint32_t aspeed_i2c_bus_dev_addr_offset(AspeedI2CBus *bus)
+{
+ if (aspeed_i2c_is_new_mode(bus->controller)) {
+ return R_I2CS_DEV_ADDR;
+ }
+ return R_I2CD_DEV_ADDR;
+}
+
static inline uint32_t aspeed_i2c_bus_intr_ctrl_offset(AspeedI2CBus *bus)
{
if (aspeed_i2c_is_new_mode(bus->controller)) {
diff --git a/hw/i2c/aspeed_i2c.c b/hw/i2c/aspeed_i2c.c
index 43ac9491ec36..f9fce0d84b89 100644
--- a/hw/i2c/aspeed_i2c.c
+++ b/hw/i2c/aspeed_i2c.c
@@ -83,6 +83,7 @@ static uint64_t aspeed_i2c_bus_old_read(AspeedI2CBus *bus, hwaddr offset,
case A_I2CD_AC_TIMING2:
case A_I2CD_INTR_CTRL:
case A_I2CD_INTR_STS:
+ case A_I2CD_DEV_ADDR:
case A_I2CD_POOL_CTRL:
case A_I2CD_BYTE_BUF:
/* Value is already set, don't do anything. */
@@ -720,8 +721,7 @@ static void aspeed_i2c_bus_old_write(AspeedI2CBus *bus, hwaddr offset,
}
break;
case A_I2CD_DEV_ADDR:
- qemu_log_mask(LOG_UNIMP, "%s: slave mode not implemented\n",
- __func__);
+ bus->regs[R_I2CD_DEV_ADDR] = value;
break;
case A_I2CD_POOL_CTRL:
bus->regs[R_I2CD_POOL_CTRL] &= ~0xffffff;
--
2.35.3
^ permalink raw reply related [flat|nested] 18+ messages in thread* [PATCH v2 17/17] aspeed/i2c: Enable SLAVE_ADDR_RX_MATCH always
2022-06-13 13:25 [PATCH v2 00/17] aspeed: Extend ast2600 I2C model with new mode Cédric Le Goater
` (15 preceding siblings ...)
2022-06-13 13:25 ` [PATCH v2 16/17] hw/i2c/aspeed: add DEV_ADDR in old register mode Cédric Le Goater
@ 2022-06-13 13:25 ` Cédric Le Goater
16 siblings, 0 replies; 18+ messages in thread
From: Cédric Le Goater @ 2022-06-13 13:25 UTC (permalink / raw)
To: qemu-arm, qemu-devel
Cc: Peter Maydell, Joe Komlodi, Troy Lee, Jamin Lin, Steven Lee,
Klaus Jensen, Peter Delevoryas, Corey Minyard, Jonathan Cameron,
Damien Hedde, Andrew Jeffery, Joel Stanley, Cleber Rosa,
Philippe Mathieu-Daudé, Wainer dos Santos Moschetta,
Beraldo Leal, Cédric Le Goater
There is no 'slave match interrupt' enable bit in the Interrupt
Control Register. Consider it is always enabled and extend the mask
value 'bus->regs[intr_ctrl_reg]' with the SLAVE_ADDR_RX_MATCH bit when
the interrupt is raised.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
hw/i2c/aspeed_i2c.c | 13 ++++++++++---
1 file changed, 10 insertions(+), 3 deletions(-)
diff --git a/hw/i2c/aspeed_i2c.c b/hw/i2c/aspeed_i2c.c
index f9fce0d84b89..37ae1f2e04bd 100644
--- a/hw/i2c/aspeed_i2c.c
+++ b/hw/i2c/aspeed_i2c.c
@@ -32,15 +32,20 @@
#include "hw/registerfields.h"
#include "trace.h"
+/* Enable SLAVE_ADDR_RX_MATCH always */
+#define R_I2CD_INTR_STS_ALWAYS_ENABLE R_I2CD_INTR_STS_SLAVE_ADDR_RX_MATCH_MASK
+
static inline void aspeed_i2c_bus_raise_interrupt(AspeedI2CBus *bus)
{
AspeedI2CClass *aic = ASPEED_I2C_GET_CLASS(bus->controller);
uint32_t reg_intr_sts = aspeed_i2c_bus_intr_sts_offset(bus);
uint32_t intr_ctrl_reg = aspeed_i2c_bus_intr_ctrl_offset(bus);
+ uint32_t intr_ctrl_mask = bus->regs[intr_ctrl_reg] |
+ R_I2CD_INTR_STS_ALWAYS_ENABLE;
bool raise_irq;
if (trace_event_get_state_backends(TRACE_ASPEED_I2C_BUS_RAISE_INTERRUPT)) {
- g_autofree char *buf = g_strdup_printf("%s%s%s%s%s%s",
+ g_autofree char *buf = g_strdup_printf("%s%s%s%s%s%s%s",
aspeed_i2c_bus_pkt_mode_en(bus) &&
ARRAY_FIELD_EX32(bus->regs, I2CM_INTR_STS, PKT_CMD_DONE) ?
"pktdone|" : "",
@@ -50,6 +55,8 @@ static inline void aspeed_i2c_bus_raise_interrupt(AspeedI2CBus *bus)
"ack|" : "",
SHARED_ARRAY_FIELD_EX32(bus->regs, reg_intr_sts, RX_DONE) ?
"done|" : "",
+ ARRAY_FIELD_EX32(bus->regs, I2CD_INTR_STS, SLAVE_ADDR_RX_MATCH) ?
+ "slave-match|" : "",
SHARED_ARRAY_FIELD_EX32(bus->regs, reg_intr_sts, NORMAL_STOP) ?
"normal|" : "",
SHARED_ARRAY_FIELD_EX32(bus->regs, reg_intr_sts, ABNORMAL) ?
@@ -58,11 +65,11 @@ static inline void aspeed_i2c_bus_raise_interrupt(AspeedI2CBus *bus)
trace_aspeed_i2c_bus_raise_interrupt(bus->regs[reg_intr_sts], buf);
}
- raise_irq = bus->regs[reg_intr_sts] & bus->regs[intr_ctrl_reg];
+ raise_irq = bus->regs[reg_intr_sts] & intr_ctrl_mask ;
/* In packet mode we don't mask off INTR_STS */
if (!aspeed_i2c_bus_pkt_mode_en(bus)) {
- bus->regs[reg_intr_sts] &= bus->regs[intr_ctrl_reg];
+ bus->regs[reg_intr_sts] &= intr_ctrl_mask;
}
if (raise_irq) {
--
2.35.3
^ permalink raw reply related [flat|nested] 18+ messages in thread