* [PATCH 4/6] mach-ux500: export System-on-Chip information ux500 via sysfs
2011-10-17 11:52 [PATCH 0/6] ux500: Export SoC information and some platform clean-up Lee Jones
@ 2011-10-17 11:52 ` Lee Jones
0 siblings, 0 replies; 13+ messages in thread
From: Lee Jones @ 2011-10-17 11:52 UTC (permalink / raw)
To: linux-arm-kernel
Here we make use of the new System-On-Chip bus driver to export
vital SoC information out to userspace via sysfs. This patch
provides a data structure of strings to populate the base
nodes found in:
/sys/devices/soc[0|1|2|...]/[family|machine|revision|soc_id].
It also adds one more node as requested by ST-Ericsson.
'process' depicts the way in which the silicon was manufactured.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
arch/arm/mach-ux500/Kconfig | 1 +
arch/arm/mach-ux500/cpu-db5500.c | 32 +++++++++---
arch/arm/mach-ux500/cpu-db8500.c | 36 ++++++++++---
arch/arm/mach-ux500/cpu.c | 67 ++++++++++++++++++++++++
arch/arm/mach-ux500/include/mach/db8500-regs.h | 3 +
arch/arm/mach-ux500/include/mach/setup.h | 6 ++-
6 files changed, 128 insertions(+), 17 deletions(-)
diff --git a/arch/arm/mach-ux500/Kconfig b/arch/arm/mach-ux500/Kconfig
index 86188b2..1c462ed 100644
--- a/arch/arm/mach-ux500/Kconfig
+++ b/arch/arm/mach-ux500/Kconfig
@@ -27,6 +27,7 @@ config MACH_U8500
bool "U8500 Development platform"
depends on UX500_SOC_DB8500
select TPS6105X
+ select SOC_BUS
help
Include support for the mop500 development platform.
diff --git a/arch/arm/mach-ux500/cpu-db5500.c b/arch/arm/mach-ux500/cpu-db5500.c
index 3995284..6bbc9da 100644
--- a/arch/arm/mach-ux500/cpu-db5500.c
+++ b/arch/arm/mach-ux500/cpu-db5500.c
@@ -220,17 +220,33 @@ static int usb_db5500_tx_dma_cfg[] = {
DB5500_DMA_DEV38_USB_OTG_OEP_8
};
-struct device* __init u5500_init_devices(void)
+static const char *db5500_read_soc_id(void)
{
- /* FIXME: First parameter to be a real parent. */
- db5500_add_gpios(NULL);
- db5500_dma_init(NULL);
- db5500_add_rtc(NULL);
- db5500_add_usb(NULL, usb_db5500_rx_dma_cfg, usb_db5500_tx_dma_cfg);
+ return kasprintf(GFP_KERNEL, "u5500 currently unsupported\n");
+}
+
+static struct device * __init db5500_soc_device_init(void)
+{
+ const char *soc_id = db5500_read_soc_id();
+
+ return ux500_soc_device_init(soc_id);
+}
+
+struct device * __init u5500_init_devices(void)
+{
+ struct device *parent;
+ int i;
+
+ parent = db5500_soc_device_init();
+
+ db5500_add_gpios(parent);
+ db5500_dma_init(parent);
+ db5500_add_rtc(parent);
+ db5500_add_usb(parent, usb_db5500_rx_dma_cfg,
+ usb_db5500_tx_dma_cfg);
platform_add_devices(db5500_platform_devs,
ARRAY_SIZE(db5500_platform_devs));
- /* FIXME: Return value to be a real parent. */
- return NULL;
+ return parent;
}
diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c
index 375171e..c83440b 100644
--- a/arch/arm/mach-ux500/cpu-db8500.c
+++ b/arch/arm/mach-ux500/cpu-db8500.c
@@ -24,6 +24,7 @@
#include <mach/setup.h>
#include <mach/devices.h>
#include <mach/usb.h>
+#include <mach/db8500-regs.h>
#include "devices-db8500.h"
#include "ste-dma40-db8500.h"
@@ -188,22 +189,43 @@ static int usb_db8500_tx_dma_cfg[] = {
DB8500_DMA_DEV39_USB_OTG_OEP_8
};
+static const char *db8500_read_soc_id(void)
+{
+ void __iomem *uid = __io_address(U8500_BB_UID_BASE);
+
+ return kasprintf(GFP_KERNEL, "%08x%08x%08x%08x%08x",
+ readl((u32 *)uid+1),
+ readl((u32 *)uid+1), readl((u32 *)uid+2),
+ readl((u32 *)uid+3), readl((u32 *)uid+4));
+}
+
+static struct device * __init db8500_soc_device_init(void)
+{
+ const char *soc_id = db8500_read_soc_id();
+
+ return ux500_soc_device_init(soc_id);
+}
+
/*
* This function is called from the board init
*/
-struct device* __init u8500_init_devices(void)
+struct device * __init u8500_init_devices(void)
{
+ struct device *parent;
+ int i;
+
+ parent = db8500_soc_device_init();
+
if (cpu_is_u8500ed())
dma40_u8500ed_fixup();
- /* FIXME: First parameter to be a real parent. */
- db8500_add_rtc(NULL);
- db8500_add_gpios(NULL);
- db8500_add_usb(NULL, usb_db8500_rx_dma_cfg, usb_db8500_tx_dma_cfg);
+ db8500_add_rtc(parent);
+ db8500_add_gpios(parent);
+ db8500_add_usb(parent, usb_db8500_rx_dma_cfg,
+ usb_db8500_tx_dma_cfg);
platform_device_register_simple("cpufreq-u8500", -1, NULL, 0);
platform_add_devices(platform_devs, ARRAY_SIZE(platform_devs));
- /* FIXME: Return value to be a real parent. */
- return NULL;
+ return parent;
}
diff --git a/arch/arm/mach-ux500/cpu.c b/arch/arm/mach-ux500/cpu.c
index b457799..3315436 100644
--- a/arch/arm/mach-ux500/cpu.c
+++ b/arch/arm/mach-ux500/cpu.c
@@ -2,6 +2,7 @@
* Copyright (C) ST-Ericsson SA 2010
*
* Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
+ * Author: Lee Jones <lee.jones@linaro.org> for ST-Ericsson
* License terms: GNU General Public License (GPL) version 2
*/
@@ -10,6 +11,9 @@
#include <linux/clk.h>
#include <linux/mfd/db8500-prcmu.h>
#include <linux/mfd/db5500-prcmu.h>
+#include <linux/sys_soc.h>
+#include <linux/err.h>
+#include <linux/slab.h>
#include <asm/hardware/gic.h>
#include <asm/mach/map.h>
@@ -77,3 +81,66 @@ static void __init ux500_timer_init(void)
struct sys_timer ux500_timer = {
.init = ux500_timer_init,
};
+
+static const char * __init ux500_get_machine(void)
+{
+ return kasprintf(GFP_KERNEL, "DB%4x", dbx500_partnumber());
+}
+
+static const char * __init ux500_get_family(void)
+{
+ return kasprintf(GFP_KERNEL, "ux500");
+}
+
+static const char * __init ux500_get_revision(void)
+{
+ unsigned int rev = dbx500_revision();
+
+ if (rev == 0x01)
+ return kasprintf(GFP_KERNEL, "%s", "ED");
+ else if (rev >= 0xA0)
+ return kasprintf(GFP_KERNEL, "%d.%d",
+ (rev >> 4) - 0xA + 1, rev & 0xf);
+
+ return kasprintf(GFP_KERNEL, "%s", "Unknown");
+}
+
+static ssize_t __init ux500_get_process(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ if (dbx500_id.process == 0x00)
+ return sprintf(buf, "Standard\n");
+
+ return sprintf(buf, "%02xnm\n", dbx500_id.process);
+}
+
+static void __init soc_info_populate(struct soc_device_attribute *soc_dev_attr,
+ const char *soc_id)
+{
+ soc_dev_attr->soc_id = soc_id;
+ soc_dev_attr->machine = ux500_get_machine();
+ soc_dev_attr->family = ux500_get_family();
+ soc_dev_attr->revision = ux500_get_revision();
+}
+
+struct device_attribute ux500_soc_attr =
+ __ATTR(process, S_IRUGO, ux500_get_process, NULL);
+
+struct device * __init ux500_soc_device_init(const char *soc_id)
+{
+ struct device *parent;
+ struct soc_device_attribute *soc_dev_attr;
+
+ soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
+ if (!soc_dev_attr)
+ return ERR_PTR(-ENOMEM);
+
+ soc_info_populate(soc_dev_attr, soc_id);
+
+ parent = soc_device_register(soc_dev_attr);
+ if (!IS_ERR_OR_NULL(parent))
+ device_create_file(parent, &ux500_soc_attr);
+
+ return parent;
+}
diff --git a/arch/arm/mach-ux500/include/mach/db8500-regs.h b/arch/arm/mach-ux500/include/mach/db8500-regs.h
index 0499971..22a9a5d 100644
--- a/arch/arm/mach-ux500/include/mach/db8500-regs.h
+++ b/arch/arm/mach-ux500/include/mach/db8500-regs.h
@@ -166,4 +166,7 @@
#define U8500_MODEM_BASE 0xe000000
#define U8500_APE_BASE 0x6000000
+/* SoC identification number information */
+#define U8500_BB_UID_BASE (U8500_BACKUPRAM1_BASE + 0xFC0)
+
#endif
diff --git a/arch/arm/mach-ux500/include/mach/setup.h b/arch/arm/mach-ux500/include/mach/setup.h
index 88e8d6b..74b43bb 100644
--- a/arch/arm/mach-ux500/include/mach/setup.h
+++ b/arch/arm/mach-ux500/include/mach/setup.h
@@ -18,8 +18,8 @@ void __init ux500_map_io(void);
extern void __init u5500_map_io(void);
extern void __init u8500_map_io(void);
-extern void __init u5500_init_devices(void);
-extern void __init u8500_init_devices(void);
+extern struct device * __init u5500_init_devices(void);
+extern struct device * __init u8500_init_devices(void);
extern void __init ux500_init_irq(void);
@@ -27,6 +27,8 @@ extern void __init u5500_sdi_init(struct device *parent);
extern void __init db5500_dma_init(struct device *parent);
+extern struct device *ux500_soc_device_init(const char *soc_id);
+
/* We re-use nomadik_timer for this platform */
extern void nmdk_timer_init(void);
--
1.7.5.4
^ permalink raw reply related [flat|nested] 13+ messages in thread
* [PATCH 4/6] mach-ux500: export System-on-Chip information ux500 via sysfs
2012-01-20 16:10 [PATCH 0/6] ux500: Export SoC information and some platform clean-up Lee Jones
@ 2012-01-20 16:10 ` Lee Jones
0 siblings, 0 replies; 13+ messages in thread
From: Lee Jones @ 2012-01-20 16:10 UTC (permalink / raw)
To: linux-arm-kernel
Here we make use of the new System-On-Chip bus driver to export
vital SoC information out to userspace via sysfs. This patch
provides a data structure of strings to populate the base
nodes found in:
/sys/devices/soc[0|1|2|...]/[family|machine|revision|soc_id].
It also adds one more node as requested by ST-Ericsson.
'process' depicts the way in which the silicon was manufactured.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
arch/arm/mach-ux500/Kconfig | 1 +
arch/arm/mach-ux500/cpu-db5500.c | 30 ++++++++---
arch/arm/mach-ux500/cpu-db8500.c | 33 +++++++++--
arch/arm/mach-ux500/cpu.c | 70 ++++++++++++++++++++++++
arch/arm/mach-ux500/include/mach/db8500-regs.h | 3 +
arch/arm/mach-ux500/include/mach/setup.h | 2 +
6 files changed, 125 insertions(+), 14 deletions(-)
diff --git a/arch/arm/mach-ux500/Kconfig b/arch/arm/mach-ux500/Kconfig
index a3e0c86..ce8bac2 100644
--- a/arch/arm/mach-ux500/Kconfig
+++ b/arch/arm/mach-ux500/Kconfig
@@ -27,6 +27,7 @@ config MACH_U8500
bool "U8500 Development platform"
depends on UX500_SOC_DB8500
select TPS6105X
+ select SOC_BUS
help
Include support for the mop500 development platform.
diff --git a/arch/arm/mach-ux500/cpu-db5500.c b/arch/arm/mach-ux500/cpu-db5500.c
index c402fd6..8f8acfd 100644
--- a/arch/arm/mach-ux500/cpu-db5500.c
+++ b/arch/arm/mach-ux500/cpu-db5500.c
@@ -212,18 +212,32 @@ static int usb_db5500_tx_dma_cfg[] = {
DB5500_DMA_DEV38_USB_OTG_OEP_8
};
-struct device* __init u5500_init_devices(void)
+static const char *db5500_read_soc_id(void)
{
- /* FIXME: First parameter to be a real parent. */
- db5500_add_gpios(NULL);
+ return kasprintf(GFP_KERNEL, "u5500 currently unsupported\n");
+}
+
+static struct device * __init db5500_soc_device_init(void)
+{
+ const char *soc_id = db5500_read_soc_id();
+
+ return ux500_soc_device_init(soc_id);
+}
+
+struct device * __init u5500_init_devices(void)
+{
+ struct device *parent;
+
+ parent = db5500_soc_device_init();
+
+ db5500_add_gpios(parent);
db5500_pmu_init();
- db5500_dma_init(NULL);
- db5500_add_rtc(NULL);
- db5500_add_usb(NULL, usb_db5500_rx_dma_cfg, usb_db5500_tx_dma_cfg);
+ db5500_dma_init(parent);
+ db5500_add_rtc(parent);
+ db5500_add_usb(parent, usb_db5500_rx_dma_cfg, usb_db5500_tx_dma_cfg);
platform_add_devices(db5500_platform_devs,
ARRAY_SIZE(db5500_platform_devs));
- /* FIXME: Return value to be a real parent. */
- return NULL;
+ return parent;
}
diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c
index 1e8a2cb..afcde3d 100644
--- a/arch/arm/mach-ux500/cpu-db8500.c
+++ b/arch/arm/mach-ux500/cpu-db8500.c
@@ -24,6 +24,7 @@
#include <mach/setup.h>
#include <mach/devices.h>
#include <mach/usb.h>
+#include <mach/db8500-regs.h>
#include "devices-db8500.h"
#include "ste-dma40-db8500.h"
@@ -164,18 +165,38 @@ static int usb_db8500_tx_dma_cfg[] = {
DB8500_DMA_DEV39_USB_OTG_OEP_8
};
+static const char *db8500_read_soc_id(void)
+{
+ void __iomem *uid = __io_address(U8500_BB_UID_BASE);
+
+ return kasprintf(GFP_KERNEL, "%08x%08x%08x%08x%08x",
+ readl((u32 *)uid+1),
+ readl((u32 *)uid+1), readl((u32 *)uid+2),
+ readl((u32 *)uid+3), readl((u32 *)uid+4));
+}
+
+static struct device * __init db8500_soc_device_init(void)
+{
+ const char *soc_id = db8500_read_soc_id();
+
+ return ux500_soc_device_init(soc_id);
+}
+
/*
* This function is called from the board init
*/
-struct device* __init u8500_init_devices(void)
+struct device * __init u8500_init_devices(void)
{
- db8500_add_rtc(NULL);
- db8500_add_gpios(NULL);
- db8500_add_usb(NULL, usb_db8500_rx_dma_cfg, usb_db8500_tx_dma_cfg);
+ struct device *parent;
+
+ parent = db8500_soc_device_init();
+
+ db8500_add_rtc(parent);
+ db8500_add_gpios(parent);
+ db8500_add_usb(parent, usb_db8500_rx_dma_cfg, usb_db8500_tx_dma_cfg);
platform_device_register_simple("cpufreq-u8500", -1, NULL, 0);
platform_add_devices(platform_devs, ARRAY_SIZE(platform_devs));
- /* FIXME: Return value to be a real parent. */
- return NULL;
+ return parent;
}
diff --git a/arch/arm/mach-ux500/cpu.c b/arch/arm/mach-ux500/cpu.c
index f418574..5f702f9 100644
--- a/arch/arm/mach-ux500/cpu.c
+++ b/arch/arm/mach-ux500/cpu.c
@@ -2,6 +2,7 @@
* Copyright (C) ST-Ericsson SA 2010
*
* Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
+ * Author: Lee Jones <lee.jones@linaro.org> for ST-Ericsson
* License terms: GNU General Public License (GPL) version 2
*/
@@ -11,6 +12,10 @@
#include <linux/mfd/db8500-prcmu.h>
#include <linux/mfd/db5500-prcmu.h>
#include <linux/clksrc-dbx500-prcmu.h>
+#include <linux/sys_soc.h>
+#include <linux/err.h>
+#include <linux/slab.h>
+#include <linux/stat.h>
#include <asm/hardware/gic.h>
#include <asm/mach/map.h>
@@ -50,3 +55,68 @@ void __init ux500_init_irq(void)
db8500_prcmu_early_init();
clk_init();
}
+
+static const char * __init ux500_get_machine(void)
+{
+ return kasprintf(GFP_KERNEL, "DB%4x", dbx500_partnumber());
+}
+
+static const char * __init ux500_get_family(void)
+{
+ return kasprintf(GFP_KERNEL, "ux500");
+}
+
+static const char * __init ux500_get_revision(void)
+{
+ unsigned int rev = dbx500_revision();
+
+ if (rev == 0x01)
+ return kasprintf(GFP_KERNEL, "%s", "ED");
+ else if (rev >= 0xA0)
+ return kasprintf(GFP_KERNEL, "%d.%d",
+ (rev >> 4) - 0xA + 1, rev & 0xf);
+
+ return kasprintf(GFP_KERNEL, "%s", "Unknown");
+}
+
+static ssize_t ux500_get_process(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ if (dbx500_id.process == 0x00)
+ return sprintf(buf, "Standard\n");
+
+ return sprintf(buf, "%02xnm\n", dbx500_id.process);
+}
+
+static void __init soc_info_populate(struct soc_device_attribute *soc_dev_attr,
+ const char *soc_id)
+{
+ soc_dev_attr->soc_id = soc_id;
+ soc_dev_attr->machine = ux500_get_machine();
+ soc_dev_attr->family = ux500_get_family();
+ soc_dev_attr->revision = ux500_get_revision();
+}
+
+struct device_attribute ux500_soc_attr =
+ __ATTR(process, S_IRUGO, ux500_get_process, NULL);
+
+struct device * __init ux500_soc_device_init(const char *soc_id)
+{
+ struct device *parent;
+ struct soc_device *soc_dev;
+ struct soc_device_attribute *soc_dev_attr;
+
+ soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
+ if (!soc_dev_attr)
+ return ERR_PTR(-ENOMEM);
+
+ soc_info_populate(soc_dev_attr, soc_id);
+
+ soc_dev = soc_device_register(soc_dev_attr);
+ parent = soc_device_to_device(soc_dev);
+ if (!IS_ERR_OR_NULL(parent))
+ device_create_file(parent, &ux500_soc_attr);
+
+ return parent;
+}
diff --git a/arch/arm/mach-ux500/include/mach/db8500-regs.h b/arch/arm/mach-ux500/include/mach/db8500-regs.h
index 80e10f5..9ec20b9 100644
--- a/arch/arm/mach-ux500/include/mach/db8500-regs.h
+++ b/arch/arm/mach-ux500/include/mach/db8500-regs.h
@@ -161,4 +161,7 @@
#define U8500_MODEM_BASE 0xe000000
#define U8500_APE_BASE 0x6000000
+/* SoC identification number information */
+#define U8500_BB_UID_BASE (U8500_BACKUPRAM1_BASE + 0xFC0)
+
#endif
diff --git a/arch/arm/mach-ux500/include/mach/setup.h b/arch/arm/mach-ux500/include/mach/setup.h
index e46b8b1..74b43bb 100644
--- a/arch/arm/mach-ux500/include/mach/setup.h
+++ b/arch/arm/mach-ux500/include/mach/setup.h
@@ -27,6 +27,8 @@ extern void __init u5500_sdi_init(struct device *parent);
extern void __init db5500_dma_init(struct device *parent);
+extern struct device *ux500_soc_device_init(const char *soc_id);
+
/* We re-use nomadik_timer for this platform */
extern void nmdk_timer_init(void);
--
1.7.5.4
^ permalink raw reply related [flat|nested] 13+ messages in thread
* [PATCH 4/6] mach-ux500: export System-on-Chip information ux500 via sysfs
2012-01-21 17:08 [PATCH 0/6] ux500: Export SoC information and some platform clean-up Lee Jones
@ 2012-01-21 17:08 ` Lee Jones
0 siblings, 0 replies; 13+ messages in thread
From: Lee Jones @ 2012-01-21 17:08 UTC (permalink / raw)
To: linux-arm-kernel
Here we make use of the new System-On-Chip bus driver to export
vital SoC information out to userspace via sysfs. This patch
provides a data structure of strings to populate the base
nodes found in:
/sys/devices/soc[0|1|2|...]/[family|machine|revision|soc_id].
It also adds one more node as requested by ST-Ericsson.
'process' depicts the way in which the silicon was manufactured.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
arch/arm/mach-ux500/Kconfig | 1 +
arch/arm/mach-ux500/cpu-db5500.c | 30 +++++++---
arch/arm/mach-ux500/cpu-db8500.c | 33 +++++++++--
arch/arm/mach-ux500/cpu.c | 75 ++++++++++++++++++++++++
arch/arm/mach-ux500/include/mach/db8500-regs.h | 3 +
arch/arm/mach-ux500/include/mach/setup.h | 2 +
6 files changed, 130 insertions(+), 14 deletions(-)
diff --git a/arch/arm/mach-ux500/Kconfig b/arch/arm/mach-ux500/Kconfig
index a3e0c86..ce8bac2 100644
--- a/arch/arm/mach-ux500/Kconfig
+++ b/arch/arm/mach-ux500/Kconfig
@@ -27,6 +27,7 @@ config MACH_U8500
bool "U8500 Development platform"
depends on UX500_SOC_DB8500
select TPS6105X
+ select SOC_BUS
help
Include support for the mop500 development platform.
diff --git a/arch/arm/mach-ux500/cpu-db5500.c b/arch/arm/mach-ux500/cpu-db5500.c
index c402fd6..8f8acfd 100644
--- a/arch/arm/mach-ux500/cpu-db5500.c
+++ b/arch/arm/mach-ux500/cpu-db5500.c
@@ -212,18 +212,32 @@ static int usb_db5500_tx_dma_cfg[] = {
DB5500_DMA_DEV38_USB_OTG_OEP_8
};
-struct device* __init u5500_init_devices(void)
+static const char *db5500_read_soc_id(void)
{
- /* FIXME: First parameter to be a real parent. */
- db5500_add_gpios(NULL);
+ return kasprintf(GFP_KERNEL, "u5500 currently unsupported\n");
+}
+
+static struct device * __init db5500_soc_device_init(void)
+{
+ const char *soc_id = db5500_read_soc_id();
+
+ return ux500_soc_device_init(soc_id);
+}
+
+struct device * __init u5500_init_devices(void)
+{
+ struct device *parent;
+
+ parent = db5500_soc_device_init();
+
+ db5500_add_gpios(parent);
db5500_pmu_init();
- db5500_dma_init(NULL);
- db5500_add_rtc(NULL);
- db5500_add_usb(NULL, usb_db5500_rx_dma_cfg, usb_db5500_tx_dma_cfg);
+ db5500_dma_init(parent);
+ db5500_add_rtc(parent);
+ db5500_add_usb(parent, usb_db5500_rx_dma_cfg, usb_db5500_tx_dma_cfg);
platform_add_devices(db5500_platform_devs,
ARRAY_SIZE(db5500_platform_devs));
- /* FIXME: Return value to be a real parent. */
- return NULL;
+ return parent;
}
diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c
index 1e8a2cb..afcde3d 100644
--- a/arch/arm/mach-ux500/cpu-db8500.c
+++ b/arch/arm/mach-ux500/cpu-db8500.c
@@ -24,6 +24,7 @@
#include <mach/setup.h>
#include <mach/devices.h>
#include <mach/usb.h>
+#include <mach/db8500-regs.h>
#include "devices-db8500.h"
#include "ste-dma40-db8500.h"
@@ -164,18 +165,38 @@ static int usb_db8500_tx_dma_cfg[] = {
DB8500_DMA_DEV39_USB_OTG_OEP_8
};
+static const char *db8500_read_soc_id(void)
+{
+ void __iomem *uid = __io_address(U8500_BB_UID_BASE);
+
+ return kasprintf(GFP_KERNEL, "%08x%08x%08x%08x%08x",
+ readl((u32 *)uid+1),
+ readl((u32 *)uid+1), readl((u32 *)uid+2),
+ readl((u32 *)uid+3), readl((u32 *)uid+4));
+}
+
+static struct device * __init db8500_soc_device_init(void)
+{
+ const char *soc_id = db8500_read_soc_id();
+
+ return ux500_soc_device_init(soc_id);
+}
+
/*
* This function is called from the board init
*/
-struct device* __init u8500_init_devices(void)
+struct device * __init u8500_init_devices(void)
{
- db8500_add_rtc(NULL);
- db8500_add_gpios(NULL);
- db8500_add_usb(NULL, usb_db8500_rx_dma_cfg, usb_db8500_tx_dma_cfg);
+ struct device *parent;
+
+ parent = db8500_soc_device_init();
+
+ db8500_add_rtc(parent);
+ db8500_add_gpios(parent);
+ db8500_add_usb(parent, usb_db8500_rx_dma_cfg, usb_db8500_tx_dma_cfg);
platform_device_register_simple("cpufreq-u8500", -1, NULL, 0);
platform_add_devices(platform_devs, ARRAY_SIZE(platform_devs));
- /* FIXME: Return value to be a real parent. */
- return NULL;
+ return parent;
}
diff --git a/arch/arm/mach-ux500/cpu.c b/arch/arm/mach-ux500/cpu.c
index f418574..055fb6e 100644
--- a/arch/arm/mach-ux500/cpu.c
+++ b/arch/arm/mach-ux500/cpu.c
@@ -2,6 +2,7 @@
* Copyright (C) ST-Ericsson SA 2010
*
* Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
+ * Author: Lee Jones <lee.jones@linaro.org> for ST-Ericsson
* License terms: GNU General Public License (GPL) version 2
*/
@@ -11,6 +12,10 @@
#include <linux/mfd/db8500-prcmu.h>
#include <linux/mfd/db5500-prcmu.h>
#include <linux/clksrc-dbx500-prcmu.h>
+#include <linux/sys_soc.h>
+#include <linux/err.h>
+#include <linux/slab.h>
+#include <linux/stat.h>
#include <asm/hardware/gic.h>
#include <asm/mach/map.h>
@@ -50,3 +55,73 @@ void __init ux500_init_irq(void)
db8500_prcmu_early_init();
clk_init();
}
+
+static const char * __init ux500_get_machine(void)
+{
+ return kasprintf(GFP_KERNEL, "DB%4x", dbx500_partnumber());
+}
+
+static const char * __init ux500_get_family(void)
+{
+ return kasprintf(GFP_KERNEL, "ux500");
+}
+
+static const char * __init ux500_get_revision(void)
+{
+ unsigned int rev = dbx500_revision();
+
+ if (rev == 0x01)
+ return kasprintf(GFP_KERNEL, "%s", "ED");
+ else if (rev >= 0xA0)
+ return kasprintf(GFP_KERNEL, "%d.%d",
+ (rev >> 4) - 0xA + 1, rev & 0xf);
+
+ return kasprintf(GFP_KERNEL, "%s", "Unknown");
+}
+
+static ssize_t ux500_get_process(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ if (dbx500_id.process == 0x00)
+ return sprintf(buf, "Standard\n");
+
+ return sprintf(buf, "%02xnm\n", dbx500_id.process);
+}
+
+static void __init soc_info_populate(struct soc_device_attribute *soc_dev_attr,
+ const char *soc_id)
+{
+ soc_dev_attr->soc_id = soc_id;
+ soc_dev_attr->machine = ux500_get_machine();
+ soc_dev_attr->family = ux500_get_family();
+ soc_dev_attr->revision = ux500_get_revision();
+}
+
+struct device_attribute ux500_soc_attr =
+ __ATTR(process, S_IRUGO, ux500_get_process, NULL);
+
+struct device * __init ux500_soc_device_init(const char *soc_id)
+{
+ struct device *parent;
+ struct soc_device *soc_dev;
+ struct soc_device_attribute *soc_dev_attr;
+
+ soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
+ if (!soc_dev_attr)
+ return ERR_PTR(-ENOMEM);
+
+ soc_info_populate(soc_dev_attr, soc_id);
+
+ soc_dev = soc_device_register(soc_dev_attr);
+ if (IS_ERR_OR_NULL(soc_dev)) {
+ kfree(soc_dev_attr);
+ return NULL;
+ }
+
+ parent = soc_device_to_device(soc_dev);
+ if (!IS_ERR_OR_NULL(parent))
+ device_create_file(parent, &ux500_soc_attr);
+
+ return parent;
+}
diff --git a/arch/arm/mach-ux500/include/mach/db8500-regs.h b/arch/arm/mach-ux500/include/mach/db8500-regs.h
index 80e10f5..9ec20b9 100644
--- a/arch/arm/mach-ux500/include/mach/db8500-regs.h
+++ b/arch/arm/mach-ux500/include/mach/db8500-regs.h
@@ -161,4 +161,7 @@
#define U8500_MODEM_BASE 0xe000000
#define U8500_APE_BASE 0x6000000
+/* SoC identification number information */
+#define U8500_BB_UID_BASE (U8500_BACKUPRAM1_BASE + 0xFC0)
+
#endif
diff --git a/arch/arm/mach-ux500/include/mach/setup.h b/arch/arm/mach-ux500/include/mach/setup.h
index e46b8b1..74b43bb 100644
--- a/arch/arm/mach-ux500/include/mach/setup.h
+++ b/arch/arm/mach-ux500/include/mach/setup.h
@@ -27,6 +27,8 @@ extern void __init u5500_sdi_init(struct device *parent);
extern void __init db5500_dma_init(struct device *parent);
+extern struct device *ux500_soc_device_init(const char *soc_id);
+
/* We re-use nomadik_timer for this platform */
extern void nmdk_timer_init(void);
--
1.7.5.4
^ permalink raw reply related [flat|nested] 13+ messages in thread
* [PATCH 0/6] ux500: Export SoC information and some platform clean-up
@ 2012-02-01 9:23 Lee Jones
2012-02-01 9:23 ` [PATCH 1/6] mach-ux500: pass parent pointer to each platform device Lee Jones
` (5 more replies)
0 siblings, 6 replies; 13+ messages in thread
From: Lee Jones @ 2012-02-01 9:23 UTC (permalink / raw)
To: linux-arm-kernel
This patch-set satisfies 4 objectives:
1. Ensures each platform device can specify a suitable parent
2. Provides a bus for SoC devices as a means to export information
3. Allows ux500 to make use of the new SoC bus
4. Cleans up unnecessary complexity from ux500 code
---
Documentation/ABI/testing/sysfs-devices-soc | 58 ++++++++
arch/arm/mach-ux500/Kconfig | 1 +
arch/arm/mach-ux500/board-mop500-sdi.c | 31 ++--
arch/arm/mach-ux500/board-mop500.c | 74 ++++++----
arch/arm/mach-ux500/board-mop500.h | 8 +-
arch/arm/mach-ux500/board-u5500-sdi.c | 4 +-
arch/arm/mach-ux500/board-u5500.c | 27 ++--
arch/arm/mach-ux500/cpu-db5500.c | 36 ++++-
arch/arm/mach-ux500/cpu-db8500.c | 44 +++++-
arch/arm/mach-ux500/cpu.c | 75 ++++++++++
arch/arm/mach-ux500/devices-common.c | 79 ++--------
arch/arm/mach-ux500/devices-common.h | 83 ++++++-----
arch/arm/mach-ux500/devices-db5500.h | 116 +++++++++------
arch/arm/mach-ux500/devices-db8500.h | 176 +++++++++++++----------
arch/arm/mach-ux500/dma-db5500.c | 3 +-
arch/arm/mach-ux500/include/mach/db8500-regs.h | 3 +
arch/arm/mach-ux500/include/mach/setup.h | 10 +-
arch/arm/mach-ux500/include/mach/usb.h | 4 +-
arch/arm/mach-ux500/usb.c | 7 +-
drivers/base/Kconfig | 3 +
drivers/base/Makefile | 1 +
drivers/base/soc.c | 186 ++++++++++++++++++++++++
include/linux/syssoc.h | 74 ++++++++++
23 files changed, 799 insertions(+), 304 deletions(-)
^ permalink raw reply [flat|nested] 13+ messages in thread
* [PATCH 1/6] mach-ux500: pass parent pointer to each platform device
2012-02-01 9:23 [PATCH 0/6] ux500: Export SoC information and some platform clean-up Lee Jones
@ 2012-02-01 9:23 ` Lee Jones
2012-02-01 9:23 ` [PATCH 2/6] drivers/base: add bus for System-on-Chip devices Lee Jones
` (4 subsequent siblings)
5 siblings, 0 replies; 13+ messages in thread
From: Lee Jones @ 2012-02-01 9:23 UTC (permalink / raw)
To: linux-arm-kernel
This patch provides a means for any device within ux500
platform code to allocate its own parent. This is particularly
prudent with the introduction of /sys/devices/socX, as a
device can now proclaim to be integral part of an SoC, rather
than a more generic platform device. Latter patches make good
use of this functionality.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
arch/arm/mach-ux500/board-mop500-sdi.c | 31 +++---
arch/arm/mach-ux500/board-mop500.c | 62 ++++++-----
arch/arm/mach-ux500/board-mop500.h | 8 +-
arch/arm/mach-ux500/board-u5500-sdi.c | 4 +-
arch/arm/mach-ux500/board-u5500.c | 23 +++--
arch/arm/mach-ux500/cpu-db5500.c | 18 ++--
arch/arm/mach-ux500/cpu-db8500.c | 15 ++--
arch/arm/mach-ux500/devices-common.c | 13 ++-
arch/arm/mach-ux500/devices-common.h | 39 ++++---
arch/arm/mach-ux500/devices-db5500.h | 116 ++++++++++++---------
arch/arm/mach-ux500/devices-db8500.h | 166 +++++++++++++++++-------------
arch/arm/mach-ux500/dma-db5500.c | 3 +-
arch/arm/mach-ux500/include/mach/setup.h | 8 +-
arch/arm/mach-ux500/include/mach/usb.h | 4 +-
arch/arm/mach-ux500/usb.c | 4 +-
15 files changed, 289 insertions(+), 225 deletions(-)
diff --git a/arch/arm/mach-ux500/board-mop500-sdi.c b/arch/arm/mach-ux500/board-mop500-sdi.c
index 23be34b..163c083 100644
--- a/arch/arm/mach-ux500/board-mop500-sdi.c
+++ b/arch/arm/mach-ux500/board-mop500-sdi.c
@@ -104,7 +104,7 @@ static struct mmci_platform_data mop500_sdi0_data = {
#endif
};
-static void sdi0_configure(void)
+static void sdi0_configure(struct device *parent)
{
int ret;
@@ -123,15 +123,15 @@ static void sdi0_configure(void)
gpio_direction_output(sdi0_en, 1);
/* Add the device, force v2 to subrevision 1 */
- db8500_add_sdi0(&mop500_sdi0_data, U8500_SDI_V2_PERIPHID);
+ db8500_add_sdi0(parent, &mop500_sdi0_data, U8500_SDI_V2_PERIPHID);
}
-void mop500_sdi_tc35892_init(void)
+void mop500_sdi_tc35892_init(struct device *parent)
{
mop500_sdi0_data.gpio_cd = GPIO_SDMMC_CD;
sdi0_en = GPIO_SDMMC_EN;
sdi0_vsel = GPIO_SDMMC_1V8_3V_SEL;
- sdi0_configure();
+ sdi0_configure(parent);
}
/*
@@ -246,12 +246,13 @@ static struct mmci_platform_data mop500_sdi4_data = {
#endif
};
-void __init mop500_sdi_init(void)
+void __init mop500_sdi_init(struct device *parent)
{
/* PoP:ed eMMC */
- db8500_add_sdi2(&mop500_sdi2_data, U8500_SDI_V2_PERIPHID);
+ db8500_add_sdi2(parent, &mop500_sdi2_data, U8500_SDI_V2_PERIPHID);
/* On-board eMMC */
- db8500_add_sdi4(&mop500_sdi4_data, U8500_SDI_V2_PERIPHID);
+ db8500_add_sdi4(parent, &mop500_sdi4_data, U8500_SDI_V2_PERIPHID);
+
/*
* On boards with the TC35892 GPIO expander, sdi0 will finally
* be added when the TC35892 initializes and calls
@@ -259,29 +260,29 @@ void __init mop500_sdi_init(void)
*/
}
-void __init snowball_sdi_init(void)
+void __init snowball_sdi_init(struct device *parent)
{
/* On-board eMMC */
- db8500_add_sdi4(&mop500_sdi4_data, U8500_SDI_V2_PERIPHID);
+ db8500_add_sdi4(parent, &mop500_sdi4_data, U8500_SDI_V2_PERIPHID);
/* External Micro SD slot */
mop500_sdi0_data.gpio_cd = SNOWBALL_SDMMC_CD_GPIO;
mop500_sdi0_data.cd_invert = true;
sdi0_en = SNOWBALL_SDMMC_EN_GPIO;
sdi0_vsel = SNOWBALL_SDMMC_1V8_3V_GPIO;
- sdi0_configure();
+ sdi0_configure(parent);
}
-void __init hrefv60_sdi_init(void)
+void __init hrefv60_sdi_init(struct device *parent)
{
/* PoP:ed eMMC */
- db8500_add_sdi2(&mop500_sdi2_data, U8500_SDI_V2_PERIPHID);
+ db8500_add_sdi2(parent, &mop500_sdi2_data, U8500_SDI_V2_PERIPHID);
/* On-board eMMC */
- db8500_add_sdi4(&mop500_sdi4_data, U8500_SDI_V2_PERIPHID);
+ db8500_add_sdi4(parent, &mop500_sdi4_data, U8500_SDI_V2_PERIPHID);
/* External Micro SD slot */
mop500_sdi0_data.gpio_cd = HREFV60_SDMMC_CD_GPIO;
sdi0_en = HREFV60_SDMMC_EN_GPIO;
sdi0_vsel = HREFV60_SDMMC_1V8_3V_GPIO;
- sdi0_configure();
+ sdi0_configure(parent);
/* WLAN SDIO channel */
- db8500_add_sdi1(&mop500_sdi1_data, U8500_SDI_V2_PERIPHID);
+ db8500_add_sdi1(parent, &mop500_sdi1_data, U8500_SDI_V2_PERIPHID);
}
diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index 5c00712..f9ce2a1 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -226,7 +226,12 @@ static struct tps6105x_platform_data mop500_tps61052_data = {
static void mop500_tc35892_init(struct tc3589x *tc3589x, unsigned int base)
{
- mop500_sdi_tc35892_init();
+ struct device *parent = NULL;
+#if 0
+ /* FIXME: Is the sdi actually part of tc3589x? */
+ parent = tc3589x->dev;
+#endif
+ mop500_sdi_tc35892_init(parent);
}
static struct tc3589x_gpio_platform_data mop500_tc35892_gpio_data = {
@@ -353,12 +358,12 @@ U8500_I2C_CONTROLLER(1, 0xe, 1, 8, 100000, 200, I2C_FREQ_MODE_FAST);
U8500_I2C_CONTROLLER(2, 0xe, 1, 8, 100000, 200, I2C_FREQ_MODE_FAST);
U8500_I2C_CONTROLLER(3, 0xe, 1, 8, 100000, 200, I2C_FREQ_MODE_FAST);
-static void __init mop500_i2c_init(void)
+static void __init mop500_i2c_init(struct device *parent)
{
- db8500_add_i2c0(&u8500_i2c0_data);
- db8500_add_i2c1(&u8500_i2c1_data);
- db8500_add_i2c2(&u8500_i2c2_data);
- db8500_add_i2c3(&u8500_i2c3_data);
+ db8500_add_i2c0(parent, &u8500_i2c0_data);
+ db8500_add_i2c1(parent, &u8500_i2c1_data);
+ db8500_add_i2c2(parent, &u8500_i2c2_data);
+ db8500_add_i2c3(parent, &u8500_i2c3_data);
}
static struct gpio_keys_button mop500_gpio_keys[] = {
@@ -451,9 +456,9 @@ static struct pl022_ssp_controller ssp0_platform_data = {
.num_chipselect = 5,
};
-static void __init mop500_spi_init(void)
+static void __init mop500_spi_init(struct device *parent)
{
- db8500_add_ssp0(&ssp0_platform_data);
+ db8500_add_ssp0(parent, &ssp0_platform_data);
}
#ifdef CONFIG_STE_DMA40
@@ -587,11 +592,11 @@ static struct amba_pl011_data uart2_plat = {
#endif
};
-static void __init mop500_uart_init(void)
+static void __init mop500_uart_init(struct device *parent)
{
- db8500_add_uart0(&uart0_plat);
- db8500_add_uart1(&uart1_plat);
- db8500_add_uart2(&uart2_plat);
+ db8500_add_uart0(parent, &uart0_plat);
+ db8500_add_uart1(parent, &uart1_plat);
+ db8500_add_uart2(parent, &uart2_plat);
}
static struct platform_device *snowball_platform_devs[] __initdata = {
@@ -603,21 +608,22 @@ static struct platform_device *snowball_platform_devs[] __initdata = {
static void __init mop500_init_machine(void)
{
+ struct device *parent = NULL;
int i2c0_devs;
mop500_gpio_keys[0].gpio = GPIO_PROX_SENSOR;
- u8500_init_devices();
+ parent = u8500_init_devices();
mop500_pins_init();
platform_add_devices(mop500_platform_devs,
ARRAY_SIZE(mop500_platform_devs));
- mop500_i2c_init();
- mop500_sdi_init();
- mop500_spi_init();
- mop500_uart_init();
+ mop500_i2c_init(parent);
+ mop500_sdi_init(parent);
+ mop500_spi_init(parent);
+ mop500_uart_init(parent);
i2c0_devs = ARRAY_SIZE(mop500_i2c0_devices);
@@ -631,19 +637,20 @@ static void __init mop500_init_machine(void)
static void __init snowball_init_machine(void)
{
+ struct device *parent = NULL;
int i2c0_devs;
- u8500_init_devices();
+ parent = u8500_init_devices();
snowball_pins_init();
platform_add_devices(snowball_platform_devs,
ARRAY_SIZE(snowball_platform_devs));
- mop500_i2c_init();
- snowball_sdi_init();
- mop500_spi_init();
- mop500_uart_init();
+ mop500_i2c_init(parent);
+ snowball_sdi_init(parent);
+ mop500_spi_init(parent);
+ mop500_uart_init(parent);
i2c0_devs = ARRAY_SIZE(mop500_i2c0_devices);
i2c_register_board_info(0, mop500_i2c0_devices, i2c0_devs);
@@ -656,6 +663,7 @@ static void __init snowball_init_machine(void)
static void __init hrefv60_init_machine(void)
{
+ struct device *parent = NULL;
int i2c0_devs;
/*
@@ -665,17 +673,17 @@ static void __init hrefv60_init_machine(void)
*/
mop500_gpio_keys[0].gpio = HREFV60_PROX_SENSE_GPIO;
- u8500_init_devices();
+ parent = u8500_init_devices();
hrefv60_pins_init();
platform_add_devices(mop500_platform_devs,
ARRAY_SIZE(mop500_platform_devs));
- mop500_i2c_init();
- hrefv60_sdi_init();
- mop500_spi_init();
- mop500_uart_init();
+ mop500_i2c_init(parent);
+ hrefv60_sdi_init(parent);
+ mop500_spi_init(parent);
+ mop500_uart_init(parent);
i2c0_devs = ARRAY_SIZE(mop500_i2c0_devices);
diff --git a/arch/arm/mach-ux500/board-mop500.h b/arch/arm/mach-ux500/board-mop500.h
index f926d3d..3d594c2 100644
--- a/arch/arm/mach-ux500/board-mop500.h
+++ b/arch/arm/mach-ux500/board-mop500.h
@@ -75,10 +75,10 @@
struct i2c_board_info;
-extern void mop500_sdi_init(void);
-extern void snowball_sdi_init(void);
-extern void hrefv60_sdi_init(void);
-extern void mop500_sdi_tc35892_init(void);
+extern void mop500_sdi_init(struct device *parent);
+extern void snowball_sdi_init(struct device *parent);
+extern void hrefv60_sdi_init(struct device *parent);
+extern void mop500_sdi_tc35892_init(struct device *parent);
void __init mop500_u8500uib_init(void);
void __init mop500_stuib_init(void);
void __init mop500_pins_init(void);
diff --git a/arch/arm/mach-ux500/board-u5500-sdi.c b/arch/arm/mach-ux500/board-u5500-sdi.c
index 63c3f80..836112e 100644
--- a/arch/arm/mach-ux500/board-u5500-sdi.c
+++ b/arch/arm/mach-ux500/board-u5500-sdi.c
@@ -66,9 +66,9 @@ static struct mmci_platform_data u5500_sdi0_data = {
#endif
};
-void __init u5500_sdi_init(void)
+void __init u5500_sdi_init(struct device *parent)
{
nmk_config_pins(u5500_sdi_pins, ARRAY_SIZE(u5500_sdi_pins));
- db5500_add_sdi0(&u5500_sdi0_data);
+ db5500_add_sdi0(parent, &u5500_sdi0_data);
}
diff --git a/arch/arm/mach-ux500/board-u5500.c b/arch/arm/mach-ux500/board-u5500.c
index 9de9e9c..d7a9596 100644
--- a/arch/arm/mach-ux500/board-u5500.c
+++ b/arch/arm/mach-ux500/board-u5500.c
@@ -97,9 +97,9 @@ static struct i2c_board_info __initdata u5500_i2c2_devices[] = {
},
};
-static void __init u5500_i2c_init(void)
+static void __init u5500_i2c_init(struct device *parent)
{
- db5500_add_i2c2(&u5500_i2c2_data);
+ db5500_add_i2c2(parent, &u5500_i2c2_data);
i2c_register_board_info(2, ARRAY_AND_SIZE(u5500_i2c2_devices));
}
@@ -126,20 +126,23 @@ static struct platform_device *u5500_platform_devices[] __initdata = {
&ab5500_device,
};
-static void __init u5500_uart_init(void)
+static void __init u5500_uart_init(struct device *parent)
{
- db5500_add_uart0(NULL);
- db5500_add_uart1(NULL);
- db5500_add_uart2(NULL);
+ db5500_add_uart0(parent, NULL);
+ db5500_add_uart1(parent, NULL);
+ db5500_add_uart2(parent, NULL);
}
static void __init u5500_init_machine(void)
{
- u5500_init_devices();
+ struct device *parent = NULL;
+
+ parent = u5500_init_devices();
nmk_config_pins(u5500_pins, ARRAY_SIZE(u5500_pins));
- u5500_i2c_init();
- u5500_sdi_init();
- u5500_uart_init();
+
+ u5500_i2c_init(parent);
+ u5500_sdi_init(parent);
+ u5500_uart_init(parent);
platform_add_devices(u5500_platform_devices,
ARRAY_SIZE(u5500_platform_devices));
diff --git a/arch/arm/mach-ux500/cpu-db5500.c b/arch/arm/mach-ux500/cpu-db5500.c
index 18aa5c0..c402fd6 100644
--- a/arch/arm/mach-ux500/cpu-db5500.c
+++ b/arch/arm/mach-ux500/cpu-db5500.c
@@ -147,13 +147,13 @@ static resource_size_t __initdata db5500_gpio_base[] = {
U5500_GPIOBANK7_BASE,
};
-static void __init db5500_add_gpios(void)
+static void __init db5500_add_gpios(struct device *parent)
{
struct nmk_gpio_platform_data pdata = {
/* No custom data yet */
};
- dbx500_add_gpios(ARRAY_AND_SIZE(db5500_gpio_base),
+ dbx500_add_gpios(parent, ARRAY_AND_SIZE(db5500_gpio_base),
IRQ_DB5500_GPIO0, &pdata);
}
@@ -212,14 +212,18 @@ static int usb_db5500_tx_dma_cfg[] = {
DB5500_DMA_DEV38_USB_OTG_OEP_8
};
-void __init u5500_init_devices(void)
+struct device* __init u5500_init_devices(void)
{
- db5500_add_gpios();
+ /* FIXME: First parameter to be a real parent. */
+ db5500_add_gpios(NULL);
db5500_pmu_init();
- db5500_dma_init();
- db5500_add_rtc();
- db5500_add_usb(usb_db5500_rx_dma_cfg, usb_db5500_tx_dma_cfg);
+ db5500_dma_init(NULL);
+ db5500_add_rtc(NULL);
+ db5500_add_usb(NULL, usb_db5500_rx_dma_cfg, usb_db5500_tx_dma_cfg);
platform_add_devices(db5500_platform_devs,
ARRAY_SIZE(db5500_platform_devs));
+
+ /* FIXME: Return value to be a real parent. */
+ return NULL;
}
diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c
index 7176ee7..1e8a2cb 100644
--- a/arch/arm/mach-ux500/cpu-db8500.c
+++ b/arch/arm/mach-ux500/cpu-db8500.c
@@ -132,13 +132,13 @@ static resource_size_t __initdata db8500_gpio_base[] = {
U8500_GPIOBANK8_BASE,
};
-static void __init db8500_add_gpios(void)
+static void __init db8500_add_gpios(struct device *parent)
{
struct nmk_gpio_platform_data pdata = {
.supports_sleepmode = true,
};
- dbx500_add_gpios(ARRAY_AND_SIZE(db8500_gpio_base),
+ dbx500_add_gpios(parent, ARRAY_AND_SIZE(db8500_gpio_base),
IRQ_DB8500_GPIO0, &pdata);
}
@@ -167,14 +167,15 @@ static int usb_db8500_tx_dma_cfg[] = {
/*
* This function is called from the board init
*/
-void __init u8500_init_devices(void)
+struct device* __init u8500_init_devices(void)
{
- db8500_add_rtc();
- db8500_add_gpios();
- db8500_add_usb(usb_db8500_rx_dma_cfg, usb_db8500_tx_dma_cfg);
+ db8500_add_rtc(NULL);
+ db8500_add_gpios(NULL);
+ db8500_add_usb(NULL, usb_db8500_rx_dma_cfg, usb_db8500_tx_dma_cfg);
platform_device_register_simple("cpufreq-u8500", -1, NULL, 0);
platform_add_devices(platform_devs, ARRAY_SIZE(platform_devs));
- return ;
+ /* FIXME: Return value to be a real parent. */
+ return NULL;
}
diff --git a/arch/arm/mach-ux500/devices-common.c b/arch/arm/mach-ux500/devices-common.c
index c563e54..96be248 100644
--- a/arch/arm/mach-ux500/devices-common.c
+++ b/arch/arm/mach-ux500/devices-common.c
@@ -20,8 +20,9 @@
#include "devices-common.h"
struct amba_device *
-dbx500_add_amba_device(const char *name, resource_size_t base,
- int irq, void *pdata, unsigned int periphid)
+dbx500_add_amba_device(struct device *parent, const char *name,
+ resource_size_t base, int irq, void *pdata,
+ unsigned int periphid)
{
struct amba_device *dev;
int ret;
@@ -109,7 +110,7 @@ dbx500_add_platform_device_4k1irq(const char *name, int id,
}
static struct platform_device *
-dbx500_add_gpio(int id, resource_size_t addr, int irq,
+dbx500_add_gpio(struct device *parent, int id, resource_size_t addr, int irq,
struct nmk_gpio_platform_data *pdata)
{
struct resource resources[] = {
@@ -130,8 +131,8 @@ dbx500_add_gpio(int id, resource_size_t addr, int irq,
pdata, sizeof(*pdata));
}
-void dbx500_add_gpios(resource_size_t *base, int num, int irq,
- struct nmk_gpio_platform_data *pdata)
+void dbx500_add_gpios(struct device *parent, resource_size_t *base, int num,
+ int irq, struct nmk_gpio_platform_data *pdata)
{
int first = 0;
int i;
@@ -141,6 +142,6 @@ void dbx500_add_gpios(resource_size_t *base, int num, int irq,
pdata->first_irq = NOMADIK_GPIO_TO_IRQ(first);
pdata->num_gpio = 32;
- dbx500_add_gpio(i, base[i], irq, pdata);
+ dbx500_add_gpio(parent, i, base[i], irq, pdata);
}
}
diff --git a/arch/arm/mach-ux500/devices-common.h b/arch/arm/mach-ux500/devices-common.h
index 7825705..f8adff8 100644
--- a/arch/arm/mach-ux500/devices-common.h
+++ b/arch/arm/mach-ux500/devices-common.h
@@ -9,7 +9,7 @@
#define __DEVICES_COMMON_H
extern struct amba_device *
-dbx500_add_amba_device(const char *name, resource_size_t base,
+dbx500_add_amba_device(struct device *parent, const char *name, resource_size_t base,
int irq, void *pdata, unsigned int periphid);
extern struct platform_device *
@@ -20,43 +20,46 @@ dbx500_add_platform_device_4k1irq(const char *name, int id,
struct spi_master_cntlr;
static inline struct amba_device *
-dbx500_add_msp_spi(const char *name, resource_size_t base, int irq,
+dbx500_add_msp_spi(struct device *parent, const char *name,
+ resource_size_t base, int irq,
struct spi_master_cntlr *pdata)
{
- return dbx500_add_amba_device(name, base, irq, pdata, 0);
+ return dbx500_add_amba_device(parent, name, base, irq,
+ pdata, 0);
}
static inline struct amba_device *
-dbx500_add_spi(const char *name, resource_size_t base, int irq,
- struct spi_master_cntlr *pdata,
+dbx500_add_spi(struct device *parent, const char *name, resource_size_t base,
+ int irq, struct spi_master_cntlr *pdata,
u32 periphid)
{
- return dbx500_add_amba_device(name, base, irq, pdata, periphid);
+ return dbx500_add_amba_device(parent, name, base, irq,
+ pdata, periphid);
}
struct mmci_platform_data;
static inline struct amba_device *
-dbx500_add_sdi(const char *name, resource_size_t base, int irq,
- struct mmci_platform_data *pdata,
- u32 periphid)
+dbx500_add_sdi(struct device *parent, const char *name, resource_size_t base,
+ int irq, struct mmci_platform_data *pdata, u32 periphid)
{
- return dbx500_add_amba_device(name, base, irq, pdata, periphid);
+ return dbx500_add_amba_device(parent, name, base, irq,
+ pdata, periphid);
}
struct amba_pl011_data;
static inline struct amba_device *
-dbx500_add_uart(const char *name, resource_size_t base, int irq,
- struct amba_pl011_data *pdata)
+dbx500_add_uart(struct device *parent, const char *name, resource_size_t base,
+ int irq, struct amba_pl011_data *pdata)
{
- return dbx500_add_amba_device(name, base, irq, pdata, 0);
+ return dbx500_add_amba_device(parent, name, base, irq, pdata, 0);
}
struct nmk_i2c_controller;
static inline struct platform_device *
-dbx500_add_i2c(int id, resource_size_t base, int irq,
+dbx500_add_i2c(struct device *parent, int id, resource_size_t base, int irq,
struct nmk_i2c_controller *pdata)
{
return dbx500_add_platform_device_4k1irq("nmk-i2c", id, base, irq,
@@ -74,14 +77,14 @@ dbx500_add_msp_i2s(int id, resource_size_t base, int irq,
}
static inline struct amba_device *
-dbx500_add_rtc(resource_size_t base, int irq)
+dbx500_add_rtc(struct device *parent, resource_size_t base, int irq)
{
- return dbx500_add_amba_device("rtc-pl031", base, irq, NULL, 0);
+ return dbx500_add_amba_device(parent, "rtc-pl031", base, irq, NULL, 0);
}
struct nmk_gpio_platform_data;
-void dbx500_add_gpios(resource_size_t *base, int num, int irq,
- struct nmk_gpio_platform_data *pdata);
+void dbx500_add_gpios(struct device *parent, resource_size_t *base, int num,
+ int irq, struct nmk_gpio_platform_data *pdata);
#endif
diff --git a/arch/arm/mach-ux500/devices-db5500.h b/arch/arm/mach-ux500/devices-db5500.h
index 0c4bccd..e709555 100644
--- a/arch/arm/mach-ux500/devices-db5500.h
+++ b/arch/arm/mach-ux500/devices-db5500.h
@@ -10,70 +10,90 @@
#include "devices-common.h"
-#define db5500_add_i2c1(pdata) \
- dbx500_add_i2c(1, U5500_I2C1_BASE, IRQ_DB5500_I2C1, pdata)
-#define db5500_add_i2c2(pdata) \
- dbx500_add_i2c(2, U5500_I2C2_BASE, IRQ_DB5500_I2C2, pdata)
-#define db5500_add_i2c3(pdata) \
- dbx500_add_i2c(3, U5500_I2C3_BASE, IRQ_DB5500_I2C3, pdata)
+#define db5500_add_i2c1(parent, pdata) \
+ dbx500_add_i2c(parent, 1, U5500_I2C1_BASE, IRQ_DB5500_I2C1, pdata)
+#define db5500_add_i2c2(parent, pdata) \
+ dbx500_add_i2c(parent, 2, U5500_I2C2_BASE, IRQ_DB5500_I2C2, pdata)
+#define db5500_add_i2c3(parent, pdata) \
+ dbx500_add_i2c(parent, 3, U5500_I2C3_BASE, IRQ_DB5500_I2C3, pdata)
-#define db5500_add_msp0_i2s(pdata) \
- dbx500_add_msp_i2s(0, U5500_MSP0_BASE, IRQ_DB5500_MSP0, pdata)
-#define db5500_add_msp1_i2s(pdata) \
- dbx500_add_msp_i2s(1, U5500_MSP1_BASE, IRQ_DB5500_MSP1, pdata)
-#define db5500_add_msp2_i2s(pdata) \
- dbx500_add_msp_i2s(2, U5500_MSP2_BASE, IRQ_DB5500_MSP2, pdata)
+#define db5500_add_msp0_spi(parent, pdata) \
+ dbx500_add_msp_spi(parent, "msp0", U5500_MSP0_BASE, \
+ IRQ_DB5500_MSP0, pdata)
+#define db5500_add_msp1_spi(parent, pdata) \
+ dbx500_add_msp_spi(parent, "msp1", U5500_MSP1_BASE, \
+ IRQ_DB5500_MSP1, pdata)
+#define db5500_add_msp2_spi(parent, pdata) \
+ dbx500_add_msp_spi(parent, "msp2", U5500_MSP2_BASE, \
+ IRQ_DB5500_MSP2, pdata)
-#define db5500_add_msp0_spi(pdata) \
- dbx500_add_msp_spi("msp0", U5500_MSP0_BASE, IRQ_DB5500_MSP0, pdata)
-#define db5500_add_msp1_spi(pdata) \
- dbx500_add_msp_spi("msp1", U5500_MSP1_BASE, IRQ_DB5500_MSP1, pdata)
-#define db5500_add_msp2_spi(pdata) \
- dbx500_add_msp_spi("msp2", U5500_MSP2_BASE, IRQ_DB5500_MSP2, pdata)
+#define db5500_add_msp0_spi(parent, pdata) \
+ dbx500_add_msp_spi(parent, "msp0", U5500_MSP0_BASE, \
+ IRQ_DB5500_MSP0, pdata)
+#define db5500_add_msp1_spi(parent, pdata) \
+ dbx500_add_msp_spi(parent, "msp1", U5500_MSP1_BASE, \
+ IRQ_DB5500_MSP1, pdata)
+#define db5500_add_msp2_spi(parent, pdata) \
+ dbx500_add_msp_spi(parent, "msp2", U5500_MSP2_BASE, \
+ IRQ_DB5500_MSP2, pdata)
-#define db5500_add_rtc() \
- dbx500_add_rtc(U5500_RTC_BASE, IRQ_DB5500_RTC);
+#define db5500_add_rtc(parent) \
+ dbx500_add_rtc(parent, U5500_RTC_BASE, IRQ_DB5500_RTC);
-#define db5500_add_usb(rx_cfg, tx_cfg) \
- ux500_add_usb(U5500_USBOTG_BASE, IRQ_DB5500_USBOTG, rx_cfg, tx_cfg)
+#define db5500_add_usb(parent, rx_cfg, tx_cfg) \
+ ux500_add_usb(parent, U5500_USBOTG_BASE, \
+ IRQ_DB5500_USBOTG, rx_cfg, tx_cfg)
-#define db5500_add_sdi0(pdata) \
- dbx500_add_sdi("sdi0", U5500_SDI0_BASE, IRQ_DB5500_SDMMC0, pdata, \
+#define db5500_add_sdi0(parent, pdata) \
+ dbx500_add_sdi(parent, "sdi0", U5500_SDI0_BASE, \
+ IRQ_DB5500_SDMMC0, pdata, \
0x10480180)
-#define db5500_add_sdi1(pdata) \
- dbx500_add_sdi("sdi1", U5500_SDI1_BASE, IRQ_DB5500_SDMMC1, pdata, \
+#define db5500_add_sdi1(parent, pdata) \
+ dbx500_add_sdi(parent, "sdi1", U5500_SDI1_BASE, \
+ IRQ_DB5500_SDMMC1, pdata, \
0x10480180)
-#define db5500_add_sdi2(pdata) \
- dbx500_add_sdi("sdi2", U5500_SDI2_BASE, IRQ_DB5500_SDMMC2, pdata \
+#define db5500_add_sdi2(parent, pdata) \
+ dbx500_add_sdi(parent, "sdi2", U5500_SDI2_BASE, \
+ IRQ_DB5500_SDMMC2, pdata \
0x10480180)
-#define db5500_add_sdi3(pdata) \
- dbx500_add_sdi("sdi3", U5500_SDI3_BASE, IRQ_DB5500_SDMMC3, pdata \
+#define db5500_add_sdi3(parent, pdata) \
+ dbx500_add_sdi(parent, "sdi3", U5500_SDI3_BASE, \
+ IRQ_DB5500_SDMMC3, pdata \
0x10480180)
-#define db5500_add_sdi4(pdata) \
- dbx500_add_sdi("sdi4", U5500_SDI4_BASE, IRQ_DB5500_SDMMC4, pdata \
+#define db5500_add_sdi4(parent, pdata) \
+ dbx500_add_sdi(parent, "sdi4", U5500_SDI4_BASE, \
+ IRQ_DB5500_SDMMC4, pdata \
0x10480180)
/* This one has a bad peripheral ID in the U5500 silicon */
-#define db5500_add_spi0(pdata) \
- dbx500_add_spi("spi0", U5500_SPI0_BASE, IRQ_DB5500_SPI0, pdata, \
+#define db5500_add_spi0(parent, pdata) \
+ dbx500_add_spi(parent, "spi0", U5500_SPI0_BASE, \
+ IRQ_DB5500_SPI0, pdata, \
0x10080023)
-#define db5500_add_spi1(pdata) \
- dbx500_add_spi("spi1", U5500_SPI1_BASE, IRQ_DB5500_SPI1, pdata, \
+#define db5500_add_spi1(parent, pdata) \
+ dbx500_add_spi(parent, "spi1", U5500_SPI1_BASE, \
+ IRQ_DB5500_SPI1, pdata, \
0x10080023)
-#define db5500_add_spi2(pdata) \
- dbx500_add_spi("spi2", U5500_SPI2_BASE, IRQ_DB5500_SPI2, pdata \
+#define db5500_add_spi2(parent, pdata) \
+ dbx500_add_spi(parent, "spi2", U5500_SPI2_BASE, \
+ IRQ_DB5500_SPI2, pdata \
0x10080023)
-#define db5500_add_spi3(pdata) \
- dbx500_add_spi("spi3", U5500_SPI3_BASE, IRQ_DB5500_SPI3, pdata \
+#define db5500_add_spi3(parent, pdata) \
+ dbx500_add_spi(parent, "spi3", U5500_SPI3_BASE, \
+ IRQ_DB5500_SPI3, pdata \
0x10080023)
-#define db5500_add_uart0(plat) \
- dbx500_add_uart("uart0", U5500_UART0_BASE, IRQ_DB5500_UART0, plat)
-#define db5500_add_uart1(plat) \
- dbx500_add_uart("uart1", U5500_UART1_BASE, IRQ_DB5500_UART1, plat)
-#define db5500_add_uart2(plat) \
- dbx500_add_uart("uart2", U5500_UART2_BASE, IRQ_DB5500_UART2, plat)
-#define db5500_add_uart3(plat) \
- dbx500_add_uart("uart3", U5500_UART3_BASE, IRQ_DB5500_UART3, plat)
+#define db5500_add_uart0(parent, plat) \
+ dbx500_add_uart(parent, "uart0", U5500_UART0_BASE, \
+ IRQ_DB5500_UART0, plat)
+#define db5500_add_uart1(parent, plat) \
+ dbx500_add_uart(parent, "uart1", U5500_UART1_BASE, \
+ IRQ_DB5500_UART1, plat)
+#define db5500_add_uart2(parent, plat) \
+ dbx500_add_uart(parent, "uart2", U5500_UART2_BASE, \
+ IRQ_DB5500_UART2, plat)
+#define db5500_add_uart3(parent, plat) \
+ dbx500_add_uart(parent, "uart3", U5500_UART3_BASE, \
+ IRQ_DB5500_UART3, plat)
#endif
diff --git a/arch/arm/mach-ux500/devices-db8500.h b/arch/arm/mach-ux500/devices-db8500.h
index cbd4a9a..9bd08ad 100644
--- a/arch/arm/mach-ux500/devices-db8500.h
+++ b/arch/arm/mach-ux500/devices-db8500.h
@@ -14,7 +14,9 @@ struct ske_keypad_platform_data;
struct pl022_ssp_controller;
static inline struct platform_device *
-db8500_add_ske_keypad(struct ske_keypad_platform_data *pdata)
+db8500_add_ske_keypad(struct device *parent,
+ struct ske_keypad_platform_data *pdata,
+ size_t size)
{
return dbx500_add_platform_device_4k1irq("nmk-ske-keypad", -1,
U8500_SKE_BASE,
@@ -22,80 +24,100 @@ db8500_add_ske_keypad(struct ske_keypad_platform_data *pdata)
}
static inline struct amba_device *
-db8500_add_ssp(const char *name, resource_size_t base, int irq,
- struct pl022_ssp_controller *pdata)
+db8500_add_ssp(struct device *parent, const char *name, resource_size_t base,
+ int irq, struct pl022_ssp_controller *pdata)
{
- return dbx500_add_amba_device(name, base, irq, pdata, 0);
+ return dbx500_add_amba_device(parent, name, base, irq, pdata, 0);
}
-#define db8500_add_i2c0(pdata) \
- dbx500_add_i2c(0, U8500_I2C0_BASE, IRQ_DB8500_I2C0, pdata)
-#define db8500_add_i2c1(pdata) \
- dbx500_add_i2c(1, U8500_I2C1_BASE, IRQ_DB8500_I2C1, pdata)
-#define db8500_add_i2c2(pdata) \
- dbx500_add_i2c(2, U8500_I2C2_BASE, IRQ_DB8500_I2C2, pdata)
-#define db8500_add_i2c3(pdata) \
- dbx500_add_i2c(3, U8500_I2C3_BASE, IRQ_DB8500_I2C3, pdata)
-#define db8500_add_i2c4(pdata) \
- dbx500_add_i2c(4, U8500_I2C4_BASE, IRQ_DB8500_I2C4, pdata)
-
-#define db8500_add_msp0_i2s(pdata) \
- dbx500_add_msp_i2s(0, U8500_MSP0_BASE, IRQ_DB8500_MSP0, pdata)
-#define db8500_add_msp1_i2s(pdata) \
- dbx500_add_msp_i2s(1, U8500_MSP1_BASE, IRQ_DB8500_MSP1, pdata)
-#define db8500_add_msp2_i2s(pdata) \
- dbx500_add_msp_i2s(2, U8500_MSP2_BASE, IRQ_DB8500_MSP2, pdata)
-#define db8500_add_msp3_i2s(pdata) \
- dbx500_add_msp_i2s(3, U8500_MSP3_BASE, IRQ_DB8500_MSP1, pdata)
-
-#define db8500_add_msp0_spi(pdata) \
- dbx500_add_msp_spi("msp0", U8500_MSP0_BASE, IRQ_DB8500_MSP0, pdata)
-#define db8500_add_msp1_spi(pdata) \
- dbx500_add_msp_spi("msp1", U8500_MSP1_BASE, IRQ_DB8500_MSP1, pdata)
-#define db8500_add_msp2_spi(pdata) \
- dbx500_add_msp_spi("msp2", U8500_MSP2_BASE, IRQ_DB8500_MSP2, pdata)
-#define db8500_add_msp3_spi(pdata) \
- dbx500_add_msp_spi("msp3", U8500_MSP3_BASE, IRQ_DB8500_MSP1, pdata)
-
-#define db8500_add_rtc() \
- dbx500_add_rtc(U8500_RTC_BASE, IRQ_DB8500_RTC);
-
-#define db8500_add_usb(rx_cfg, tx_cfg) \
- ux500_add_usb(U8500_USBOTG_BASE, IRQ_DB8500_USBOTG, rx_cfg, tx_cfg)
-
-#define db8500_add_sdi0(pdata, pid) \
- dbx500_add_sdi("sdi0", U8500_SDI0_BASE, IRQ_DB8500_SDMMC0, pdata, pid)
-#define db8500_add_sdi1(pdata, pid) \
- dbx500_add_sdi("sdi1", U8500_SDI1_BASE, IRQ_DB8500_SDMMC1, pdata, pid)
-#define db8500_add_sdi2(pdata, pid) \
- dbx500_add_sdi("sdi2", U8500_SDI2_BASE, IRQ_DB8500_SDMMC2, pdata, pid)
-#define db8500_add_sdi3(pdata, pid) \
- dbx500_add_sdi("sdi3", U8500_SDI3_BASE, IRQ_DB8500_SDMMC3, pdata, pid)
-#define db8500_add_sdi4(pdata, pid) \
- dbx500_add_sdi("sdi4", U8500_SDI4_BASE, IRQ_DB8500_SDMMC4, pdata, pid)
-#define db8500_add_sdi5(pdata, pid) \
- dbx500_add_sdi("sdi5", U8500_SDI5_BASE, IRQ_DB8500_SDMMC5, pdata, pid)
-
-#define db8500_add_ssp0(pdata) \
- db8500_add_ssp("ssp0", U8500_SSP0_BASE, IRQ_DB8500_SSP0, pdata)
-#define db8500_add_ssp1(pdata) \
- db8500_add_ssp("ssp1", U8500_SSP1_BASE, IRQ_DB8500_SSP1, pdata)
-
-#define db8500_add_spi0(pdata) \
- dbx500_add_spi("spi0", U8500_SPI0_BASE, IRQ_DB8500_SPI0, pdata, 0)
-#define db8500_add_spi1(pdata) \
- dbx500_add_spi("spi1", U8500_SPI1_BASE, IRQ_DB8500_SPI1, pdata, 0)
-#define db8500_add_spi2(pdata) \
- dbx500_add_spi("spi2", U8500_SPI2_BASE, IRQ_DB8500_SPI2, pdata, 0)
-#define db8500_add_spi3(pdata) \
- dbx500_add_spi("spi3", U8500_SPI3_BASE, IRQ_DB8500_SPI3, pdata, 0)
-
-#define db8500_add_uart0(pdata) \
- dbx500_add_uart("uart0", U8500_UART0_BASE, IRQ_DB8500_UART0, pdata)
-#define db8500_add_uart1(pdata) \
- dbx500_add_uart("uart1", U8500_UART1_BASE, IRQ_DB8500_UART1, pdata)
-#define db8500_add_uart2(pdata) \
- dbx500_add_uart("uart2", U8500_UART2_BASE, IRQ_DB8500_UART2, pdata)
+#define db8500_add_i2c0(parent, pdata) \
+ dbx500_add_i2c(parent, 0, U8500_I2C0_BASE, IRQ_DB8500_I2C0, pdata)
+#define db8500_add_i2c1(parent, pdata) \
+ dbx500_add_i2c(parent, 1, U8500_I2C1_BASE, IRQ_DB8500_I2C1, pdata)
+#define db8500_add_i2c2(parent, pdata) \
+ dbx500_add_i2c(parent, 2, U8500_I2C2_BASE, IRQ_DB8500_I2C2, pdata)
+#define db8500_add_i2c3(parent, pdata) \
+ dbx500_add_i2c(parent, 3, U8500_I2C3_BASE, IRQ_DB8500_I2C3, pdata)
+#define db8500_add_i2c4(parent, pdata) \
+ dbx500_add_i2c(parent, 4, U8500_I2C4_BASE, IRQ_DB8500_I2C4, pdata)
+
+#define db8500_add_msp0_i2s(parent, pdata) \
+ dbx500_add_msp_i2s(parent, 0, U8500_MSP0_BASE, IRQ_DB8500_MSP0, pdata)
+#define db8500_add_msp1_i2s(parent, pdata) \
+ dbx500_add_msp_i2s(parent, 1, U8500_MSP1_BASE, IRQ_DB8500_MSP1, pdata)
+#define db8500_add_msp2_i2s(parent, pdata) \
+ dbx500_add_msp_i2s(parent, 2, U8500_MSP2_BASE, IRQ_DB8500_MSP2, pdata)
+#define db8500_add_msp3_i2s(parent, pdata) \
+ dbx500_add_msp_i2s(parent, 3, U8500_MSP3_BASE, IRQ_DB8500_MSP1, pdata)
+
+#define db8500_add_msp0_spi(parent, pdata) \
+ dbx500_add_msp_spi(parent, "msp0", U8500_MSP0_BASE, \
+ IRQ_DB8500_MSP0, pdata)
+#define db8500_add_msp1_spi(parent, pdata) \
+ dbx500_add_msp_spi(parent, "msp1", U8500_MSP1_BASE, \
+ IRQ_DB8500_MSP1, pdata)
+#define db8500_add_msp2_spi(parent, pdata) \
+ dbx500_add_msp_spi(parent, "msp2", U8500_MSP2_BASE, \
+ IRQ_DB8500_MSP2, pdata)
+#define db8500_add_msp3_spi(parent, pdata) \
+ dbx500_add_msp_spi(parent, "msp3", U8500_MSP3_BASE, \
+ IRQ_DB8500_MSP1, pdata)
+
+#define db8500_add_rtc(parent) \
+ dbx500_add_rtc(parent, U8500_RTC_BASE, IRQ_DB8500_RTC);
+
+#define db8500_add_usb(parent, rx_cfg, tx_cfg) \
+ ux500_add_usb(parent, U8500_USBOTG_BASE, \
+ IRQ_DB8500_USBOTG, rx_cfg, tx_cfg)
+
+#define db8500_add_sdi0(parent, pdata, pid) \
+ dbx500_add_sdi(parent, "sdi0", U8500_SDI0_BASE, \
+ IRQ_DB8500_SDMMC0, pdata, pid)
+#define db8500_add_sdi1(parent, pdata, pid) \
+ dbx500_add_sdi(parent, "sdi1", U8500_SDI1_BASE, \
+ IRQ_DB8500_SDMMC1, pdata, pid)
+#define db8500_add_sdi2(parent, pdata, pid) \
+ dbx500_add_sdi(parent, "sdi2", U8500_SDI2_BASE, \
+ IRQ_DB8500_SDMMC2, pdata, pid)
+#define db8500_add_sdi3(parent, pdata, pid) \
+ dbx500_add_sdi(parent, "sdi3", U8500_SDI3_BASE, \
+ IRQ_DB8500_SDMMC3, pdata, pid)
+#define db8500_add_sdi4(parent, pdata, pid) \
+ dbx500_add_sdi(parent, "sdi4", U8500_SDI4_BASE, \
+ IRQ_DB8500_SDMMC4, pdata, pid)
+#define db8500_add_sdi5(parent, pdata, pid) \
+ dbx500_add_sdi(parent, "sdi5", U8500_SDI5_BASE, \
+ IRQ_DB8500_SDMMC5, pdata, pid)
+
+#define db8500_add_ssp0(parent, pdata) \
+ db8500_add_ssp(parent, "ssp0", U8500_SSP0_BASE, \
+ IRQ_DB8500_SSP0, pdata)
+#define db8500_add_ssp1(parent, pdata) \
+ db8500_add_ssp(parent, "ssp1", U8500_SSP1_BASE, \
+ IRQ_DB8500_SSP1, pdata)
+
+#define db8500_add_spi0(parent, pdata) \
+ dbx500_add_spi(parent, "spi0", U8500_SPI0_BASE, \
+ IRQ_DB8500_SPI0, pdata, 0)
+#define db8500_add_spi1(parent, pdata) \
+ dbx500_add_spi(parent, "spi1", U8500_SPI1_BASE, \
+ IRQ_DB8500_SPI1, pdata, 0)
+#define db8500_add_spi2(parent, pdata) \
+ dbx500_add_spi(parent, "spi2", U8500_SPI2_BASE, \
+ IRQ_DB8500_SPI2, pdata, 0)
+#define db8500_add_spi3(parent, pdata) \
+ dbx500_add_spi(parent, "spi3", U8500_SPI3_BASE, \
+ IRQ_DB8500_SPI3, pdata, 0)
+
+#define db8500_add_uart0(parent, pdata) \
+ dbx500_add_uart(parent, "uart0", U8500_UART0_BASE, \
+ IRQ_DB8500_UART0, pdata)
+#define db8500_add_uart1(parent, pdata) \
+ dbx500_add_uart(parent, "uart1", U8500_UART1_BASE, \
+ IRQ_DB8500_UART1, pdata)
+#define db8500_add_uart2(parent, pdata) \
+ dbx500_add_uart(parent, "uart2", U8500_UART2_BASE, \
+ IRQ_DB8500_UART2, pdata)
#endif
diff --git a/arch/arm/mach-ux500/dma-db5500.c b/arch/arm/mach-ux500/dma-db5500.c
index 1cfab68..41e9470 100644
--- a/arch/arm/mach-ux500/dma-db5500.c
+++ b/arch/arm/mach-ux500/dma-db5500.c
@@ -125,10 +125,11 @@ static struct platform_device dma40_device = {
.resource = dma40_resources
};
-void __init db5500_dma_init(void)
+void __init db5500_dma_init(struct device *parent)
{
int ret;
+ dma40_device.dev.parent = parent;
ret = platform_device_register(&dma40_device);
if (ret)
dev_err(&dma40_device.dev, "unable to register device: %d\n", ret);
diff --git a/arch/arm/mach-ux500/include/mach/setup.h b/arch/arm/mach-ux500/include/mach/setup.h
index a7d363f..e46b8b1 100644
--- a/arch/arm/mach-ux500/include/mach/setup.h
+++ b/arch/arm/mach-ux500/include/mach/setup.h
@@ -18,14 +18,14 @@ void __init ux500_map_io(void);
extern void __init u5500_map_io(void);
extern void __init u8500_map_io(void);
-extern void __init u5500_init_devices(void);
-extern void __init u8500_init_devices(void);
+extern struct device * __init u5500_init_devices(void);
+extern struct device * __init u8500_init_devices(void);
extern void __init ux500_init_irq(void);
-extern void __init u5500_sdi_init(void);
+extern void __init u5500_sdi_init(struct device *parent);
-extern void __init db5500_dma_init(void);
+extern void __init db5500_dma_init(struct device *parent);
/* We re-use nomadik_timer for this platform */
extern void nmdk_timer_init(void);
diff --git a/arch/arm/mach-ux500/include/mach/usb.h b/arch/arm/mach-ux500/include/mach/usb.h
index d3739d4..4c1cc50 100644
--- a/arch/arm/mach-ux500/include/mach/usb.h
+++ b/arch/arm/mach-ux500/include/mach/usb.h
@@ -20,6 +20,6 @@ struct ux500_musb_board_data {
bool (*dma_filter)(struct dma_chan *chan, void *filter_param);
};
-void ux500_add_usb(resource_size_t base, int irq, int *dma_rx_cfg,
- int *dma_tx_cfg);
+void ux500_add_usb(struct device *parent, resource_size_t base,
+ int irq, int *dma_rx_cfg, int *dma_tx_cfg);
#endif
diff --git a/arch/arm/mach-ux500/usb.c b/arch/arm/mach-ux500/usb.c
index 0a01cbd..bef6a31 100644
--- a/arch/arm/mach-ux500/usb.c
+++ b/arch/arm/mach-ux500/usb.c
@@ -146,8 +146,8 @@ static inline void ux500_usb_dma_update_tx_ch_config(int *dst_dev_type)
musb_dma_tx_ch[idx].dst_dev_type = dst_dev_type[idx];
}
-void ux500_add_usb(resource_size_t base, int irq, int *dma_rx_cfg,
- int *dma_tx_cfg)
+void ux500_add_usb(struct device *parent, resource_size_t base, int irq,
+ int *dma_rx_cfg, int *dma_tx_cfg)
{
ux500_musb_device.resource[0].start = base;
ux500_musb_device.resource[0].end = base + SZ_64K - 1;
--
1.7.5.4
^ permalink raw reply related [flat|nested] 13+ messages in thread
* [PATCH 2/6] drivers/base: add bus for System-on-Chip devices
2012-02-01 9:23 [PATCH 0/6] ux500: Export SoC information and some platform clean-up Lee Jones
2012-02-01 9:23 ` [PATCH 1/6] mach-ux500: pass parent pointer to each platform device Lee Jones
@ 2012-02-01 9:23 ` Lee Jones
2012-02-01 15:52 ` Jamie Iles
2012-02-01 9:23 ` [PATCH 3/6] Documentation: add information for new sysfs soc bus functionality Lee Jones
` (3 subsequent siblings)
5 siblings, 1 reply; 13+ messages in thread
From: Lee Jones @ 2012-02-01 9:23 UTC (permalink / raw)
To: linux-arm-kernel
Traditionally, any System-on-Chip based platform creates a flat list
of platform_devices directly under /sys/devices/platform.
In order to give these some better structure, this introduces a new
bus type for soc_devices that are registered with the new
soc_device_register() function. All devices that are on the same
chip should then be registered as child devices of the soc device.
The soc bus also exports a few standardised device attributes which
allow user space to query the specific type of soc.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
drivers/base/Kconfig | 3 +
drivers/base/Makefile | 1 +
drivers/base/soc.c | 186 ++++++++++++++++++++++++++++++++++++++++++++++++
include/linux/syssoc.h | 74 +++++++++++++++++++
4 files changed, 264 insertions(+), 0 deletions(-)
create mode 100644 drivers/base/soc.c
create mode 100644 include/linux/syssoc.h
diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig
index 7be9f79..9aa618a 100644
--- a/drivers/base/Kconfig
+++ b/drivers/base/Kconfig
@@ -176,6 +176,9 @@ config GENERIC_CPU_DEVICES
bool
default n
+config SOC_BUS
+ bool
+
source "drivers/base/regmap/Kconfig"
config DMA_SHARED_BUFFER
diff --git a/drivers/base/Makefile b/drivers/base/Makefile
index 2c8272d..4f302a6 100644
--- a/drivers/base/Makefile
+++ b/drivers/base/Makefile
@@ -19,6 +19,7 @@ obj-$(CONFIG_MODULES) += module.o
endif
obj-$(CONFIG_SYS_HYPERVISOR) += hypervisor.o
obj-$(CONFIG_REGMAP) += regmap/
+obj-$(CONFIG_SOC_BUS) += soc.o
ccflags-$(CONFIG_DEBUG_DRIVER) := -DDEBUG
diff --git a/drivers/base/soc.c b/drivers/base/soc.c
new file mode 100644
index 0000000..29abf6d
--- /dev/null
+++ b/drivers/base/soc.c
@@ -0,0 +1,186 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2011
+ *
+ * Author: Lee Jones <lee.jones@linaro.org> for ST-Ericsson.
+ * License terms: GNU General Public License (GPL), version 2
+ */
+
+#include <linux/sysfs.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/stat.h>
+#include <linux/slab.h>
+#include <linux/idr.h>
+#include <linux/spinlock.h>
+#include <linux/sys_soc.h>
+#include <linux/err.h>
+
+static struct ida soc_ida;
+static spinlock_t soc_lock;
+
+/* Required: soc_info_get needs to see the DEVICE_ATTR's, which */
+/* in turn need to know about the function's existence. */
+static ssize_t soc_info_get(struct device *dev,
+ struct device_attribute *attr,
+ char *buf);
+
+struct soc_device {
+ struct device dev;
+ const struct soc_device_attribute *attr;
+};
+
+static struct bus_type soc_bus_type = {
+ .name = "soc",
+};
+
+static DEVICE_ATTR(machine, S_IRUGO, soc_info_get, NULL);
+static DEVICE_ATTR(family, S_IRUGO, soc_info_get, NULL);
+static DEVICE_ATTR(soc_id, S_IRUGO, soc_info_get, NULL);
+static DEVICE_ATTR(revision, S_IRUGO, soc_info_get, NULL);
+
+struct device *soc_device_to_device(struct soc_device *soc_dev)
+{
+ return &soc_dev->dev;
+}
+
+static mode_t soc_attribute_mode(struct kobject *kobj,
+ struct attribute *attr,
+ int index)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct soc_device *soc_dev = container_of(dev, struct soc_device, dev);
+
+ if ((attr == &dev_attr_machine.attr)
+ && (soc_dev->attr->machine != NULL))
+ return attr->mode;
+ if ((attr == &dev_attr_family.attr)
+ && (soc_dev->attr->family != NULL))
+ return attr->mode;
+ if ((attr == &dev_attr_revision.attr)
+ && (soc_dev->attr->revision != NULL))
+ return attr->mode;
+ if ((attr == &dev_attr_soc_id.attr)
+ && (soc_dev->attr->soc_id != NULL))
+ return attr->mode;
+
+ /* Unknown or unfilled attribute. */
+ return 0;
+}
+
+static ssize_t soc_info_get(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct soc_device *soc_dev = container_of(dev, struct soc_device, dev);
+
+ if (attr == &dev_attr_machine)
+ return sprintf(buf, "%s\n", soc_dev->attr->machine);
+ if (attr == &dev_attr_family)
+ return sprintf(buf, "%s\n", soc_dev->attr->family);
+ if (attr == &dev_attr_revision)
+ return sprintf(buf, "%s\n", soc_dev->attr->revision);
+ if (attr == &dev_attr_soc_id)
+ return sprintf(buf, "%s\n", soc_dev->attr->soc_id);
+
+ return -EINVAL;
+
+}
+
+static struct attribute *soc_attr[] = {
+ &dev_attr_machine.attr,
+ &dev_attr_family.attr,
+ &dev_attr_soc_id.attr,
+ &dev_attr_revision.attr,
+ NULL,
+};
+
+static const struct attribute_group soc_attr_group = {
+ .attrs = soc_attr,
+ .is_visible = soc_attribute_mode,
+};
+
+static const struct attribute_group *soc_attr_groups[] = {
+ &soc_attr_group,
+ NULL,
+};
+
+static void soc_release(struct device *dev)
+{
+ struct soc_device *soc_dev = container_of(dev, struct soc_device, dev);
+
+ kfree(soc_dev);
+}
+
+struct soc_device *soc_device_register(struct soc_device_attribute *soc_dev_attr)
+{
+ struct soc_device *soc_dev;
+ int ret;
+
+ soc_dev = kzalloc(sizeof(*soc_dev), GFP_KERNEL);
+ if (!soc_dev) {
+ ret = -ENOMEM;
+ goto out1;
+ }
+
+ /* Fetch a unique (reclaimable) SOC ID. */
+ do {
+ if (!ida_pre_get(&soc_ida, GFP_KERNEL)) {
+ ret = -ENOMEM;
+ goto out2;
+ }
+
+ spin_lock(&soc_lock);
+ ret = ida_get_new(&soc_ida, &soc_dev->id);
+ spin_unlock(&soc_lock);
+
+ } while (ret == -EAGAIN);
+
+ if (ret)
+ goto out2;
+
+ soc_dev->attr = soc_dev_attr;
+ soc_dev->dev.bus = &soc_bus_type;
+ soc_dev->dev.groups = soc_attr_groups;
+ soc_dev->dev.release = soc_release;
+
+ dev_set_name(&soc_dev->dev, "soc%d", soc_dev->id);
+
+ ret = device_register(&soc_dev->dev);
+ if (ret)
+ goto out3;
+
+ return soc_dev;
+
+out3:
+ ida_remove(&soc_ida, soc_dev->id);
+out2:
+ kfree(soc_dev);
+out1:
+ return ERR_PTR(ret);
+}
+
+/* Ensure soc_dev->attr is freed prior to calling soc_device_unregister. */
+void soc_device_unregister(struct soc_device *soc_dev)
+{
+ ida_remove(&soc_ida, soc_dev->id);
+
+ device_unregister(&soc_dev->dev);
+}
+
+static int __init soc_bus_register(void)
+{
+ spin_lock_init(&soc_lock);
+
+ ida_init(&soc_ida);
+
+ return bus_register(&soc_bus_type);
+}
+core_initcall(soc_bus_register);
+
+static void __exit soc_bus_unregister(void)
+{
+ ida_destroy(&soc_ida);
+
+ bus_unregister(&soc_bus_type);
+}
+module_exit(soc_bus_unregister);
diff --git a/include/linux/syssoc.h b/include/linux/syssoc.h
new file mode 100644
index 0000000..340685c
--- /dev/null
+++ b/include/linux/syssoc.h
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2011
+ * Author: Lee Jones <lee.jones@linaro.org> for ST-Ericsson.
+ * License terms: GNU General Public License (GPL), version 2
+ */
+
+#ifndef __SOC_BUS_H
+#define __SOC_BUS_H
+
+#include <linux/device.h>
+
+struct soc_device_attribute {
+ const char *machine;
+ const char *family;
+ const char *revision;
+ const char *soc_id;
+};
+
+/**
+ * soc_device_register - register SoC as a device
+ * @soc_plat_dev_attr: Attributes passed from platform to be attributed to a SoC
+ *
+ * soc_device_register is passed a selection of predefined attributes. Each
+ * detail a particular piece of information pertaining to the System-on-Chip
+ * (SoC) which the code is currently executing on. It is the caller's
+ * responsibility to allocate memory and populate this structure prior to passing
+ * as well as freeing on failure.
+ *
+ * More information surrounding the attributes can be found in:
+ * 'Documentation/ABI/testing/sysfs-devices-soc'.
+ *
+ * Each SoC in the system should call this function once. It will be subsequently
+ * allocated a SoC ID (in order of appearance - so the first SoC on the system
+ * may not necessarily be soc0 in sysfs) and registered.
+ *
+ * If successful, soc_device_register will return a populated soc_device
+ * (definition located in 'drivers/base/soc.c'), which the calling code can then
+ * use as a parent after passing it through soc_device_to_device.
+ *
+ */
+struct soc_device *soc_device_register(
+ const struct soc_device_attribute *soc_plat_dev_attr);
+
+/**
+ * soc_device_unregister - unregister SoC device
+ * @dev: SoC device to be unregistered
+ *
+ * soc_device_unregister only requires the soc_device which was obtained from
+ * soc_device_register. In current architectures this is an unused function call
+ * as SoCs are presently non-removable.
+ */
+void soc_device_unregister(struct soc_device *soc_dev);
+
+/**
+ * soc_device_to_device - helper function to fetch struct device
+ * @soc: Previously registered SoC device container
+ *
+ * Up until the existence of this driver, SoC devices were registered as "grab bag"
+ * platform_devices. Now, once a SoC registers itself with this driver, it will be
+ * provided a soc_device. This has the potential to act as a parent for all SoC
+ * devices and provides a sane bus for SoC devices to be hooked up to.
+ *
+ * When soc_device_to_device is provided with the soc_device returned by
+ * soc_device_register a suitable parent device will be passed back. This may be
+ * used as a suitable parent for all devices located on the current (calling) SoC.
+ *
+ * This function provides a simple way to extract the parent pointer from
+ * soc_device. No reference counter is incremented during the process, so it is
+ * considered safe to call it as many times as required without unnecessary
+ * overhead.
+ */
+struct device *soc_device_to_device(struct soc_device *soc);
+
+#endif /* __SOC_BUS_H */
--
1.7.5.4
^ permalink raw reply related [flat|nested] 13+ messages in thread
* [PATCH 3/6] Documentation: add information for new sysfs soc bus functionality
2012-02-01 9:23 [PATCH 0/6] ux500: Export SoC information and some platform clean-up Lee Jones
2012-02-01 9:23 ` [PATCH 1/6] mach-ux500: pass parent pointer to each platform device Lee Jones
2012-02-01 9:23 ` [PATCH 2/6] drivers/base: add bus for System-on-Chip devices Lee Jones
@ 2012-02-01 9:23 ` Lee Jones
2012-02-01 9:23 ` [PATCH 4/6] mach-ux500: export System-on-Chip information ux500 via sysfs Lee Jones
` (2 subsequent siblings)
5 siblings, 0 replies; 13+ messages in thread
From: Lee Jones @ 2012-02-01 9:23 UTC (permalink / raw)
To: linux-arm-kernel
This change applies the required documentation for each new
attribute recenty added by the new System-On-Chip (SoC)
information export bus driver.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
Documentation/ABI/testing/sysfs-devices-soc | 58 +++++++++++++++++++++++++++
1 files changed, 58 insertions(+), 0 deletions(-)
create mode 100644 Documentation/ABI/testing/sysfs-devices-soc
diff --git a/Documentation/ABI/testing/sysfs-devices-soc b/Documentation/ABI/testing/sysfs-devices-soc
new file mode 100644
index 0000000..6d9cc25
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-devices-soc
@@ -0,0 +1,58 @@
+What: /sys/devices/socX
+Date: January 2012
+contact: Lee Jones <lee.jones@linaro.org>
+Description:
+ The /sys/devices/ directory contains a sub-directory for each
+ System-on-Chip (SoC) device on a running platform. Information
+ regarding each SoC can be obtained by reading sysfs files. This
+ functionality is only available if implemented by the platform.
+
+ The directory created for each SoC will also house information
+ about devices which are commonly contained in /sys/devices/platform.
+ It has been agreed that if an SoC device exists, its supported
+ devices would be better suited to appear as children of that SoC.
+
+What: /sys/devices/socX/machine
+Date: January 2012
+contact: Lee Jones <lee.jones@linaro.org>
+Description:
+ Read-only attribute common to all SoCs. Contains the SoC machine
+ name (e.g. Ux500).
+
+What: /sys/devices/socX/family
+Date: January 2012
+contact: Lee Jones <lee.jones@linaro.org>
+Description:
+ Read-only attribute common to all SoCs. Contains SoC family name
+ (e.g. DB8500).
+
+What: /sys/devices/socX/soc_id
+Date: January 2012
+contact: Lee Jones <lee.jones@linaro.org>
+Description:
+ Read-only attribute supported by most SoCs. In the case of
+ ST-Ericsson's chips this contains the SoC serial number.
+
+What: /sys/devices/socX/revision
+Date: January 2012
+contact: Lee Jones <lee.jones@linaro.org>
+Description:
+ Read-only attribute supported by most SoCs. Contains the SoC's
+ manufacturing revision number.
+
+What: /sys/devices/socX/process
+Date: January 2012
+contact: Lee Jones <lee.jones@linaro.org>
+Description:
+ Read-only attribute supported ST-Ericsson's silicon. Contains the
+ the process by which the silicon chip was manufactured.
+
+What: /sys/bus/soc
+Date: January 2012
+contact: Lee Jones <lee.jones@linaro.org>
+Description:
+ The /sys/bus/soc/ directory contains the usual sub-folders
+ expected under most buses. /sys/bus/soc/devices is of particular
+ interest, as it contains a symlink for each SoC device found on
+ the system. Each symlink points back into the aforementioned
+ /sys/devices/socX devices.
--
1.7.5.4
^ permalink raw reply related [flat|nested] 13+ messages in thread
* [PATCH 4/6] mach-ux500: export System-on-Chip information ux500 via sysfs
2012-02-01 9:23 [PATCH 0/6] ux500: Export SoC information and some platform clean-up Lee Jones
` (2 preceding siblings ...)
2012-02-01 9:23 ` [PATCH 3/6] Documentation: add information for new sysfs soc bus functionality Lee Jones
@ 2012-02-01 9:23 ` Lee Jones
2012-02-01 9:23 ` [PATCH 5/6] mach-ux500: move top level platform devices in sysfs to /sys/devices/socX Lee Jones
2012-02-01 9:23 ` [PATCH 6/6] mach-ux500: remove intermediary add_platform_device* functions Lee Jones
5 siblings, 0 replies; 13+ messages in thread
From: Lee Jones @ 2012-02-01 9:23 UTC (permalink / raw)
To: linux-arm-kernel
Here we make use of the new System-On-Chip bus driver to export
vital SoC information out to userspace via sysfs. This patch
provides a data structure of strings to populate the base
nodes found in:
/sys/devices/soc[0|1|2|...]/[family|machine|revision|soc_id].
It also adds one more node as requested by ST-Ericsson.
'process' depicts the way in which the silicon was manufactured.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
arch/arm/mach-ux500/Kconfig | 1 +
arch/arm/mach-ux500/cpu-db5500.c | 30 +++++++---
arch/arm/mach-ux500/cpu-db8500.c | 33 +++++++++--
arch/arm/mach-ux500/cpu.c | 75 ++++++++++++++++++++++++
arch/arm/mach-ux500/include/mach/db8500-regs.h | 3 +
arch/arm/mach-ux500/include/mach/setup.h | 2 +
6 files changed, 130 insertions(+), 14 deletions(-)
diff --git a/arch/arm/mach-ux500/Kconfig b/arch/arm/mach-ux500/Kconfig
index a3e0c86..ce8bac2 100644
--- a/arch/arm/mach-ux500/Kconfig
+++ b/arch/arm/mach-ux500/Kconfig
@@ -27,6 +27,7 @@ config MACH_U8500
bool "U8500 Development platform"
depends on UX500_SOC_DB8500
select TPS6105X
+ select SOC_BUS
help
Include support for the mop500 development platform.
diff --git a/arch/arm/mach-ux500/cpu-db5500.c b/arch/arm/mach-ux500/cpu-db5500.c
index c402fd6..8f8acfd 100644
--- a/arch/arm/mach-ux500/cpu-db5500.c
+++ b/arch/arm/mach-ux500/cpu-db5500.c
@@ -212,18 +212,32 @@ static int usb_db5500_tx_dma_cfg[] = {
DB5500_DMA_DEV38_USB_OTG_OEP_8
};
-struct device* __init u5500_init_devices(void)
+static const char *db5500_read_soc_id(void)
{
- /* FIXME: First parameter to be a real parent. */
- db5500_add_gpios(NULL);
+ return kasprintf(GFP_KERNEL, "u5500 currently unsupported\n");
+}
+
+static struct device * __init db5500_soc_device_init(void)
+{
+ const char *soc_id = db5500_read_soc_id();
+
+ return ux500_soc_device_init(soc_id);
+}
+
+struct device * __init u5500_init_devices(void)
+{
+ struct device *parent;
+
+ parent = db5500_soc_device_init();
+
+ db5500_add_gpios(parent);
db5500_pmu_init();
- db5500_dma_init(NULL);
- db5500_add_rtc(NULL);
- db5500_add_usb(NULL, usb_db5500_rx_dma_cfg, usb_db5500_tx_dma_cfg);
+ db5500_dma_init(parent);
+ db5500_add_rtc(parent);
+ db5500_add_usb(parent, usb_db5500_rx_dma_cfg, usb_db5500_tx_dma_cfg);
platform_add_devices(db5500_platform_devs,
ARRAY_SIZE(db5500_platform_devs));
- /* FIXME: Return value to be a real parent. */
- return NULL;
+ return parent;
}
diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c
index 1e8a2cb..afcde3d 100644
--- a/arch/arm/mach-ux500/cpu-db8500.c
+++ b/arch/arm/mach-ux500/cpu-db8500.c
@@ -24,6 +24,7 @@
#include <mach/setup.h>
#include <mach/devices.h>
#include <mach/usb.h>
+#include <mach/db8500-regs.h>
#include "devices-db8500.h"
#include "ste-dma40-db8500.h"
@@ -164,18 +165,38 @@ static int usb_db8500_tx_dma_cfg[] = {
DB8500_DMA_DEV39_USB_OTG_OEP_8
};
+static const char *db8500_read_soc_id(void)
+{
+ void __iomem *uid = __io_address(U8500_BB_UID_BASE);
+
+ return kasprintf(GFP_KERNEL, "%08x%08x%08x%08x%08x",
+ readl((u32 *)uid+1),
+ readl((u32 *)uid+1), readl((u32 *)uid+2),
+ readl((u32 *)uid+3), readl((u32 *)uid+4));
+}
+
+static struct device * __init db8500_soc_device_init(void)
+{
+ const char *soc_id = db8500_read_soc_id();
+
+ return ux500_soc_device_init(soc_id);
+}
+
/*
* This function is called from the board init
*/
-struct device* __init u8500_init_devices(void)
+struct device * __init u8500_init_devices(void)
{
- db8500_add_rtc(NULL);
- db8500_add_gpios(NULL);
- db8500_add_usb(NULL, usb_db8500_rx_dma_cfg, usb_db8500_tx_dma_cfg);
+ struct device *parent;
+
+ parent = db8500_soc_device_init();
+
+ db8500_add_rtc(parent);
+ db8500_add_gpios(parent);
+ db8500_add_usb(parent, usb_db8500_rx_dma_cfg, usb_db8500_tx_dma_cfg);
platform_device_register_simple("cpufreq-u8500", -1, NULL, 0);
platform_add_devices(platform_devs, ARRAY_SIZE(platform_devs));
- /* FIXME: Return value to be a real parent. */
- return NULL;
+ return parent;
}
diff --git a/arch/arm/mach-ux500/cpu.c b/arch/arm/mach-ux500/cpu.c
index f418574..055fb6e 100644
--- a/arch/arm/mach-ux500/cpu.c
+++ b/arch/arm/mach-ux500/cpu.c
@@ -2,6 +2,7 @@
* Copyright (C) ST-Ericsson SA 2010
*
* Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
+ * Author: Lee Jones <lee.jones@linaro.org> for ST-Ericsson
* License terms: GNU General Public License (GPL) version 2
*/
@@ -11,6 +12,10 @@
#include <linux/mfd/db8500-prcmu.h>
#include <linux/mfd/db5500-prcmu.h>
#include <linux/clksrc-dbx500-prcmu.h>
+#include <linux/sys_soc.h>
+#include <linux/err.h>
+#include <linux/slab.h>
+#include <linux/stat.h>
#include <asm/hardware/gic.h>
#include <asm/mach/map.h>
@@ -50,3 +55,73 @@ void __init ux500_init_irq(void)
db8500_prcmu_early_init();
clk_init();
}
+
+static const char * __init ux500_get_machine(void)
+{
+ return kasprintf(GFP_KERNEL, "DB%4x", dbx500_partnumber());
+}
+
+static const char * __init ux500_get_family(void)
+{
+ return kasprintf(GFP_KERNEL, "ux500");
+}
+
+static const char * __init ux500_get_revision(void)
+{
+ unsigned int rev = dbx500_revision();
+
+ if (rev == 0x01)
+ return kasprintf(GFP_KERNEL, "%s", "ED");
+ else if (rev >= 0xA0)
+ return kasprintf(GFP_KERNEL, "%d.%d",
+ (rev >> 4) - 0xA + 1, rev & 0xf);
+
+ return kasprintf(GFP_KERNEL, "%s", "Unknown");
+}
+
+static ssize_t ux500_get_process(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ if (dbx500_id.process == 0x00)
+ return sprintf(buf, "Standard\n");
+
+ return sprintf(buf, "%02xnm\n", dbx500_id.process);
+}
+
+static void __init soc_info_populate(struct soc_device_attribute *soc_dev_attr,
+ const char *soc_id)
+{
+ soc_dev_attr->soc_id = soc_id;
+ soc_dev_attr->machine = ux500_get_machine();
+ soc_dev_attr->family = ux500_get_family();
+ soc_dev_attr->revision = ux500_get_revision();
+}
+
+struct device_attribute ux500_soc_attr =
+ __ATTR(process, S_IRUGO, ux500_get_process, NULL);
+
+struct device * __init ux500_soc_device_init(const char *soc_id)
+{
+ struct device *parent;
+ struct soc_device *soc_dev;
+ struct soc_device_attribute *soc_dev_attr;
+
+ soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
+ if (!soc_dev_attr)
+ return ERR_PTR(-ENOMEM);
+
+ soc_info_populate(soc_dev_attr, soc_id);
+
+ soc_dev = soc_device_register(soc_dev_attr);
+ if (IS_ERR_OR_NULL(soc_dev)) {
+ kfree(soc_dev_attr);
+ return NULL;
+ }
+
+ parent = soc_device_to_device(soc_dev);
+ if (!IS_ERR_OR_NULL(parent))
+ device_create_file(parent, &ux500_soc_attr);
+
+ return parent;
+}
diff --git a/arch/arm/mach-ux500/include/mach/db8500-regs.h b/arch/arm/mach-ux500/include/mach/db8500-regs.h
index 80e10f5..9ec20b9 100644
--- a/arch/arm/mach-ux500/include/mach/db8500-regs.h
+++ b/arch/arm/mach-ux500/include/mach/db8500-regs.h
@@ -161,4 +161,7 @@
#define U8500_MODEM_BASE 0xe000000
#define U8500_APE_BASE 0x6000000
+/* SoC identification number information */
+#define U8500_BB_UID_BASE (U8500_BACKUPRAM1_BASE + 0xFC0)
+
#endif
diff --git a/arch/arm/mach-ux500/include/mach/setup.h b/arch/arm/mach-ux500/include/mach/setup.h
index e46b8b1..74b43bb 100644
--- a/arch/arm/mach-ux500/include/mach/setup.h
+++ b/arch/arm/mach-ux500/include/mach/setup.h
@@ -27,6 +27,8 @@ extern void __init u5500_sdi_init(struct device *parent);
extern void __init db5500_dma_init(struct device *parent);
+extern struct device *ux500_soc_device_init(const char *soc_id);
+
/* We re-use nomadik_timer for this platform */
extern void nmdk_timer_init(void);
--
1.7.5.4
^ permalink raw reply related [flat|nested] 13+ messages in thread
* [PATCH 5/6] mach-ux500: move top level platform devices in sysfs to /sys/devices/socX
2012-02-01 9:23 [PATCH 0/6] ux500: Export SoC information and some platform clean-up Lee Jones
` (3 preceding siblings ...)
2012-02-01 9:23 ` [PATCH 4/6] mach-ux500: export System-on-Chip information ux500 via sysfs Lee Jones
@ 2012-02-01 9:23 ` Lee Jones
2012-02-01 9:23 ` [PATCH 6/6] mach-ux500: remove intermediary add_platform_device* functions Lee Jones
5 siblings, 0 replies; 13+ messages in thread
From: Lee Jones @ 2012-02-01 9:23 UTC (permalink / raw)
To: linux-arm-kernel
At the request of Arnd Bergmann this patch moves all SoC
platform devices found in sysfs from /sys/devices/platform to
/sys/devices/soc<SoCNum>/. It is believed as the devices are
SoC specific and a /sys/devices/soc node has recently
become available, that this would be a more appropriate place to
display the data.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
arch/arm/mach-ux500/board-mop500.c | 12 ++++++++++++
arch/arm/mach-ux500/board-u5500.c | 4 ++++
arch/arm/mach-ux500/cpu-db5500.c | 4 ++++
arch/arm/mach-ux500/cpu-db8500.c | 8 +++++++-
arch/arm/mach-ux500/devices-common.c | 13 ++++++++++---
arch/arm/mach-ux500/usb.c | 3 +++
6 files changed, 40 insertions(+), 4 deletions(-)
diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index f9ce2a1..04afcdf 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -610,6 +610,7 @@ static void __init mop500_init_machine(void)
{
struct device *parent = NULL;
int i2c0_devs;
+ int i;
mop500_gpio_keys[0].gpio = GPIO_PROX_SENSOR;
@@ -617,6 +618,9 @@ static void __init mop500_init_machine(void)
mop500_pins_init();
+ for (i = 0; i < ARRAY_SIZE(mop500_platform_devs); i++)
+ mop500_platform_devs[i]->dev.parent = parent;
+
platform_add_devices(mop500_platform_devs,
ARRAY_SIZE(mop500_platform_devs));
@@ -639,11 +643,15 @@ static void __init snowball_init_machine(void)
{
struct device *parent = NULL;
int i2c0_devs;
+ int i;
parent = u8500_init_devices();
snowball_pins_init();
+ for (i = 0; i < ARRAY_SIZE(snowball_platform_devs); i++)
+ snowball_platform_devs[i]->dev.parent = parent;
+
platform_add_devices(snowball_platform_devs,
ARRAY_SIZE(snowball_platform_devs));
@@ -665,6 +673,7 @@ static void __init hrefv60_init_machine(void)
{
struct device *parent = NULL;
int i2c0_devs;
+ int i;
/*
* The HREFv60 board removed a GPIO expander and routed
@@ -677,6 +686,9 @@ static void __init hrefv60_init_machine(void)
hrefv60_pins_init();
+ for (i = 0; i < ARRAY_SIZE(mop500_platform_devs); i++)
+ mop500_platform_devs[i]->dev.parent = parent;
+
platform_add_devices(mop500_platform_devs,
ARRAY_SIZE(mop500_platform_devs));
diff --git a/arch/arm/mach-ux500/board-u5500.c b/arch/arm/mach-ux500/board-u5500.c
index d7a9596..0ff4be7 100644
--- a/arch/arm/mach-ux500/board-u5500.c
+++ b/arch/arm/mach-ux500/board-u5500.c
@@ -136,6 +136,7 @@ static void __init u5500_uart_init(struct device *parent)
static void __init u5500_init_machine(void)
{
struct device *parent = NULL;
+ int i;
parent = u5500_init_devices();
nmk_config_pins(u5500_pins, ARRAY_SIZE(u5500_pins));
@@ -144,6 +145,9 @@ static void __init u5500_init_machine(void)
u5500_sdi_init(parent);
u5500_uart_init(parent);
+ for (i = 0; i < ARRAY_SIZE(u5500_platform_devices); i++)
+ u5500_platform_devices[i]->dev.parent = parent;
+
platform_add_devices(u5500_platform_devices,
ARRAY_SIZE(u5500_platform_devices));
}
diff --git a/arch/arm/mach-ux500/cpu-db5500.c b/arch/arm/mach-ux500/cpu-db5500.c
index 8f8acfd..bca47f3 100644
--- a/arch/arm/mach-ux500/cpu-db5500.c
+++ b/arch/arm/mach-ux500/cpu-db5500.c
@@ -227,6 +227,7 @@ static struct device * __init db5500_soc_device_init(void)
struct device * __init u5500_init_devices(void)
{
struct device *parent;
+ int i;
parent = db5500_soc_device_init();
@@ -236,6 +237,9 @@ struct device * __init u5500_init_devices(void)
db5500_add_rtc(parent);
db5500_add_usb(parent, usb_db5500_rx_dma_cfg, usb_db5500_tx_dma_cfg);
+ for (i = 0; i < ARRAY_SIZE(db5500_platform_devs); i++)
+ db5500_platform_devs[i]->dev.parent = parent;
+
platform_add_devices(db5500_platform_devs,
ARRAY_SIZE(db5500_platform_devs));
diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c
index afcde3d..9bd8163 100644
--- a/arch/arm/mach-ux500/cpu-db8500.c
+++ b/arch/arm/mach-ux500/cpu-db8500.c
@@ -188,6 +188,7 @@ static struct device * __init db8500_soc_device_init(void)
struct device * __init u8500_init_devices(void)
{
struct device *parent;
+ int i;
parent = db8500_soc_device_init();
@@ -195,7 +196,12 @@ struct device * __init u8500_init_devices(void)
db8500_add_gpios(parent);
db8500_add_usb(parent, usb_db8500_rx_dma_cfg, usb_db8500_tx_dma_cfg);
- platform_device_register_simple("cpufreq-u8500", -1, NULL, 0);
+ platform_device_register_data(parent,
+ "cpufreq-u8500", -1, NULL, 0);
+
+ for (i = 0; i < ARRAY_SIZE(platform_devs); i++)
+ platform_devs[i]->dev.parent = parent;
+
platform_add_devices(platform_devs, ARRAY_SIZE(platform_devs));
return parent;
diff --git a/arch/arm/mach-ux500/devices-common.c b/arch/arm/mach-ux500/devices-common.c
index 96be248..96effbd 100644
--- a/arch/arm/mach-ux500/devices-common.c
+++ b/arch/arm/mach-ux500/devices-common.c
@@ -47,6 +47,8 @@ dbx500_add_amba_device(struct device *parent, const char *name,
dev->dev.platform_data = pdata;
+ dev->dev.parent = parent;
+
ret = amba_device_register(dev, &iomem_resource);
if (ret) {
kfree(dev);
@@ -126,9 +128,14 @@ dbx500_add_gpio(struct device *parent, int id, resource_size_t addr, int irq,
}
};
- return platform_device_register_resndata(NULL, "gpio", id,
- resources, ARRAY_SIZE(resources),
- pdata, sizeof(*pdata));
+ return platform_device_register_resndata(
+ parent,
+ "gpio",
+ id,
+ resources,
+ ARRAY_SIZE(resources),
+ pdata,
+ sizeof(*pdata));
}
void dbx500_add_gpios(struct device *parent, resource_size_t *base, int num,
diff --git a/arch/arm/mach-ux500/usb.c b/arch/arm/mach-ux500/usb.c
index bef6a31..cdae63e 100644
--- a/arch/arm/mach-ux500/usb.c
+++ b/arch/arm/mach-ux500/usb.c
@@ -7,6 +7,7 @@
#include <linux/platform_device.h>
#include <linux/usb/musb.h>
#include <linux/dma-mapping.h>
+
#include <plat/ste_dma40.h>
#include <mach/hardware.h>
#include <mach/usb.h>
@@ -157,5 +158,7 @@ void ux500_add_usb(struct device *parent, resource_size_t base, int irq,
ux500_usb_dma_update_rx_ch_config(dma_rx_cfg);
ux500_usb_dma_update_tx_ch_config(dma_tx_cfg);
+ ux500_musb_device.dev.parent = parent;
+
platform_device_register(&ux500_musb_device);
}
--
1.7.5.4
^ permalink raw reply related [flat|nested] 13+ messages in thread
* [PATCH 6/6] mach-ux500: remove intermediary add_platform_device* functions
2012-02-01 9:23 [PATCH 0/6] ux500: Export SoC information and some platform clean-up Lee Jones
` (4 preceding siblings ...)
2012-02-01 9:23 ` [PATCH 5/6] mach-ux500: move top level platform devices in sysfs to /sys/devices/socX Lee Jones
@ 2012-02-01 9:23 ` Lee Jones
5 siblings, 0 replies; 13+ messages in thread
From: Lee Jones @ 2012-02-01 9:23 UTC (permalink / raw)
To: linux-arm-kernel
These are no longer required since a 'parent' pointer is now
passed to each registering device.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
arch/arm/mach-ux500/devices-common.c | 53 ----------------------------------
arch/arm/mach-ux500/devices-common.h | 46 ++++++++++++++++-------------
arch/arm/mach-ux500/devices-db8500.h | 10 ++++--
3 files changed, 33 insertions(+), 76 deletions(-)
diff --git a/arch/arm/mach-ux500/devices-common.c b/arch/arm/mach-ux500/devices-common.c
index 96effbd..c3bc094 100644
--- a/arch/arm/mach-ux500/devices-common.c
+++ b/arch/arm/mach-ux500/devices-common.c
@@ -59,59 +59,6 @@ dbx500_add_amba_device(struct device *parent, const char *name,
}
static struct platform_device *
-dbx500_add_platform_device(const char *name, int id, void *pdata,
- struct resource *res, int resnum)
-{
- struct platform_device *dev;
- int ret;
-
- dev = platform_device_alloc(name, id);
- if (!dev)
- return ERR_PTR(-ENOMEM);
-
- dev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
- dev->dev.dma_mask = &dev->dev.coherent_dma_mask;
-
- ret = platform_device_add_resources(dev, res, resnum);
- if (ret)
- goto out_free;
-
- dev->dev.platform_data = pdata;
-
- ret = platform_device_add(dev);
- if (ret)
- goto out_free;
-
- return dev;
-
-out_free:
- platform_device_put(dev);
- return ERR_PTR(ret);
-}
-
-struct platform_device *
-dbx500_add_platform_device_4k1irq(const char *name, int id,
- resource_size_t base,
- int irq, void *pdata)
-{
- struct resource resources[] = {
- [0] = {
- .start = base,
- .end = base + SZ_4K - 1,
- .flags = IORESOURCE_MEM,
- },
- [1] = {
- .start = irq,
- .end = irq,
- .flags = IORESOURCE_IRQ,
- }
- };
-
- return dbx500_add_platform_device(name, id, pdata, resources,
- ARRAY_SIZE(resources));
-}
-
-static struct platform_device *
dbx500_add_gpio(struct device *parent, int id, resource_size_t addr, int irq,
struct nmk_gpio_platform_data *pdata)
{
diff --git a/arch/arm/mach-ux500/devices-common.h b/arch/arm/mach-ux500/devices-common.h
index f8adff8..39c74ec 100644
--- a/arch/arm/mach-ux500/devices-common.h
+++ b/arch/arm/mach-ux500/devices-common.h
@@ -8,14 +8,15 @@
#ifndef __DEVICES_COMMON_H
#define __DEVICES_COMMON_H
-extern struct amba_device *
-dbx500_add_amba_device(struct device *parent, const char *name, resource_size_t base,
- int irq, void *pdata, unsigned int periphid);
+#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
+#include <linux/sys_soc.h>
+#include <plat/i2c.h>
-extern struct platform_device *
-dbx500_add_platform_device_4k1irq(const char *name, int id,
- resource_size_t base,
- int irq, void *pdata);
+extern struct amba_device *
+dbx500_add_amba_device(struct device *parent, const char *name,
+ resource_size_t base, int irq, void *pdata,
+ unsigned int periphid);
struct spi_master_cntlr;
@@ -60,20 +61,25 @@ struct nmk_i2c_controller;
static inline struct platform_device *
dbx500_add_i2c(struct device *parent, int id, resource_size_t base, int irq,
- struct nmk_i2c_controller *pdata)
-{
- return dbx500_add_platform_device_4k1irq("nmk-i2c", id, base, irq,
- pdata);
-}
-
-struct msp_i2s_platform_data;
-
-static inline struct platform_device *
-dbx500_add_msp_i2s(int id, resource_size_t base, int irq,
- struct msp_i2s_platform_data *pdata)
+ struct nmk_i2c_controller *data)
{
- return dbx500_add_platform_device_4k1irq("MSP_I2S", id, base, irq,
- pdata);
+ struct resource res[] = {
+ DEFINE_RES_MEM(base, SZ_4K),
+ DEFINE_RES_IRQ(irq),
+ };
+
+ struct platform_device_info pdevinfo = {
+ .parent = parent,
+ .name = "nmk-i2c",
+ .id = id,
+ .res = res,
+ .num_res = ARRAY_SIZE(res),
+ .data = data,
+ .size_data = sizeof(*data),
+ .dma_mask = DMA_BIT_MASK(32),
+ };
+
+ return platform_device_register_full(&pdevinfo);
}
static inline struct amba_device *
diff --git a/arch/arm/mach-ux500/devices-db8500.h b/arch/arm/mach-ux500/devices-db8500.h
index 9bd08ad..9fd93e9 100644
--- a/arch/arm/mach-ux500/devices-db8500.h
+++ b/arch/arm/mach-ux500/devices-db8500.h
@@ -18,9 +18,13 @@ db8500_add_ske_keypad(struct device *parent,
struct ske_keypad_platform_data *pdata,
size_t size)
{
- return dbx500_add_platform_device_4k1irq("nmk-ske-keypad", -1,
- U8500_SKE_BASE,
- IRQ_DB8500_KB, pdata);
+ struct resource resources[] = {
+ DEFINE_RES_MEM(U8500_SKE_BASE, SZ_4K),
+ DEFINE_RES_IRQ(IRQ_DB8500_KB),
+ };
+
+ return platform_device_register_resndata(parent, "nmk-ske-keypad", -1,
+ resources, 2, pdata, size);
}
static inline struct amba_device *
--
1.7.5.4
^ permalink raw reply related [flat|nested] 13+ messages in thread
* [PATCH 2/6] drivers/base: add bus for System-on-Chip devices
2012-02-01 9:23 ` [PATCH 2/6] drivers/base: add bus for System-on-Chip devices Lee Jones
@ 2012-02-01 15:52 ` Jamie Iles
2012-02-01 16:55 ` Arnd Bergmann
0 siblings, 1 reply; 13+ messages in thread
From: Jamie Iles @ 2012-02-01 15:52 UTC (permalink / raw)
To: linux-arm-kernel
Hi Lee,
I'm not able to give this a full testing, but it looks good to me, I
have one really minor nit, but I'll look forward to integrating this
into picoxcell as soon as I get chance!
Jamie
On 1 February 2012 04:23, Lee Jones <lee.jones@linaro.org> wrote:
> diff --git a/drivers/base/soc.c b/drivers/base/soc.c
> new file mode 100644
> index 0000000..29abf6d
> --- /dev/null
> +++ b/drivers/base/soc.c
> @@ -0,0 +1,186 @@
> +/*
> + * Copyright (C) ST-Ericsson SA 2011
> + *
> + * Author: Lee Jones <lee.jones@linaro.org> for ST-Ericsson.
> + * License terms: ?GNU General Public License (GPL), version 2
> + */
> +
> +#include <linux/sysfs.h>
> +#include <linux/module.h>
> +#include <linux/init.h>
> +#include <linux/stat.h>
> +#include <linux/slab.h>
> +#include <linux/idr.h>
> +#include <linux/spinlock.h>
> +#include <linux/sys_soc.h>
> +#include <linux/err.h>
> +
> +static struct ida soc_ida;
> +static spinlock_t soc_lock;
Use DEFINE_IDR() and DEFINE_SPINLOCK() rather than initialising them at runtime?
Jamie
^ permalink raw reply [flat|nested] 13+ messages in thread
* [PATCH 2/6] drivers/base: add bus for System-on-Chip devices
2012-02-01 15:52 ` Jamie Iles
@ 2012-02-01 16:55 ` Arnd Bergmann
0 siblings, 0 replies; 13+ messages in thread
From: Arnd Bergmann @ 2012-02-01 16:55 UTC (permalink / raw)
To: linux-arm-kernel
On Wednesday 01 February 2012, Jamie Iles wrote:
> > +static struct ida soc_ida;
> > +static spinlock_t soc_lock;
>
> Use DEFINE_IDR() and DEFINE_SPINLOCK() rather than initialising them at runtime?
>
Good point! "static DEFINE_{IDR,SPINLOCK}()" even, in case that wasn't clear.
Arnd
^ permalink raw reply [flat|nested] 13+ messages in thread
* [PATCH 4/6] mach-ux500: export System-on-Chip information ux500 via sysfs
2012-02-06 19:22 [PATCH 0/6] ux500: Export SoC information and some platform clean-up Lee Jones
@ 2012-02-06 19:22 ` Lee Jones
0 siblings, 0 replies; 13+ messages in thread
From: Lee Jones @ 2012-02-06 19:22 UTC (permalink / raw)
To: linux-arm-kernel
Here we make use of the new System-On-Chip bus driver to export
vital SoC information out to userspace via sysfs. This patch
provides a data structure of strings to populate the base
nodes found in:
/sys/devices/soc[0|1|2|...]/[family|machine|revision|soc_id].
It also adds one more node as requested by ST-Ericsson.
'process' depicts the way in which the silicon was manufactured.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
arch/arm/mach-ux500/Kconfig | 1 +
arch/arm/mach-ux500/cpu-db5500.c | 30 +++++++---
arch/arm/mach-ux500/cpu-db8500.c | 33 +++++++++--
arch/arm/mach-ux500/cpu.c | 75 ++++++++++++++++++++++++
arch/arm/mach-ux500/include/mach/db8500-regs.h | 3 +
arch/arm/mach-ux500/include/mach/setup.h | 2 +
6 files changed, 130 insertions(+), 14 deletions(-)
diff --git a/arch/arm/mach-ux500/Kconfig b/arch/arm/mach-ux500/Kconfig
index a3e0c86..ce8bac2 100644
--- a/arch/arm/mach-ux500/Kconfig
+++ b/arch/arm/mach-ux500/Kconfig
@@ -27,6 +27,7 @@ config MACH_U8500
bool "U8500 Development platform"
depends on UX500_SOC_DB8500
select TPS6105X
+ select SOC_BUS
help
Include support for the mop500 development platform.
diff --git a/arch/arm/mach-ux500/cpu-db5500.c b/arch/arm/mach-ux500/cpu-db5500.c
index c402fd6..8f8acfd 100644
--- a/arch/arm/mach-ux500/cpu-db5500.c
+++ b/arch/arm/mach-ux500/cpu-db5500.c
@@ -212,18 +212,32 @@ static int usb_db5500_tx_dma_cfg[] = {
DB5500_DMA_DEV38_USB_OTG_OEP_8
};
-struct device* __init u5500_init_devices(void)
+static const char *db5500_read_soc_id(void)
{
- /* FIXME: First parameter to be a real parent. */
- db5500_add_gpios(NULL);
+ return kasprintf(GFP_KERNEL, "u5500 currently unsupported\n");
+}
+
+static struct device * __init db5500_soc_device_init(void)
+{
+ const char *soc_id = db5500_read_soc_id();
+
+ return ux500_soc_device_init(soc_id);
+}
+
+struct device * __init u5500_init_devices(void)
+{
+ struct device *parent;
+
+ parent = db5500_soc_device_init();
+
+ db5500_add_gpios(parent);
db5500_pmu_init();
- db5500_dma_init(NULL);
- db5500_add_rtc(NULL);
- db5500_add_usb(NULL, usb_db5500_rx_dma_cfg, usb_db5500_tx_dma_cfg);
+ db5500_dma_init(parent);
+ db5500_add_rtc(parent);
+ db5500_add_usb(parent, usb_db5500_rx_dma_cfg, usb_db5500_tx_dma_cfg);
platform_add_devices(db5500_platform_devs,
ARRAY_SIZE(db5500_platform_devs));
- /* FIXME: Return value to be a real parent. */
- return NULL;
+ return parent;
}
diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c
index 1e8a2cb..afcde3d 100644
--- a/arch/arm/mach-ux500/cpu-db8500.c
+++ b/arch/arm/mach-ux500/cpu-db8500.c
@@ -24,6 +24,7 @@
#include <mach/setup.h>
#include <mach/devices.h>
#include <mach/usb.h>
+#include <mach/db8500-regs.h>
#include "devices-db8500.h"
#include "ste-dma40-db8500.h"
@@ -164,18 +165,38 @@ static int usb_db8500_tx_dma_cfg[] = {
DB8500_DMA_DEV39_USB_OTG_OEP_8
};
+static const char *db8500_read_soc_id(void)
+{
+ void __iomem *uid = __io_address(U8500_BB_UID_BASE);
+
+ return kasprintf(GFP_KERNEL, "%08x%08x%08x%08x%08x",
+ readl((u32 *)uid+1),
+ readl((u32 *)uid+1), readl((u32 *)uid+2),
+ readl((u32 *)uid+3), readl((u32 *)uid+4));
+}
+
+static struct device * __init db8500_soc_device_init(void)
+{
+ const char *soc_id = db8500_read_soc_id();
+
+ return ux500_soc_device_init(soc_id);
+}
+
/*
* This function is called from the board init
*/
-struct device* __init u8500_init_devices(void)
+struct device * __init u8500_init_devices(void)
{
- db8500_add_rtc(NULL);
- db8500_add_gpios(NULL);
- db8500_add_usb(NULL, usb_db8500_rx_dma_cfg, usb_db8500_tx_dma_cfg);
+ struct device *parent;
+
+ parent = db8500_soc_device_init();
+
+ db8500_add_rtc(parent);
+ db8500_add_gpios(parent);
+ db8500_add_usb(parent, usb_db8500_rx_dma_cfg, usb_db8500_tx_dma_cfg);
platform_device_register_simple("cpufreq-u8500", -1, NULL, 0);
platform_add_devices(platform_devs, ARRAY_SIZE(platform_devs));
- /* FIXME: Return value to be a real parent. */
- return NULL;
+ return parent;
}
diff --git a/arch/arm/mach-ux500/cpu.c b/arch/arm/mach-ux500/cpu.c
index f418574..055fb6e 100644
--- a/arch/arm/mach-ux500/cpu.c
+++ b/arch/arm/mach-ux500/cpu.c
@@ -2,6 +2,7 @@
* Copyright (C) ST-Ericsson SA 2010
*
* Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
+ * Author: Lee Jones <lee.jones@linaro.org> for ST-Ericsson
* License terms: GNU General Public License (GPL) version 2
*/
@@ -11,6 +12,10 @@
#include <linux/mfd/db8500-prcmu.h>
#include <linux/mfd/db5500-prcmu.h>
#include <linux/clksrc-dbx500-prcmu.h>
+#include <linux/sys_soc.h>
+#include <linux/err.h>
+#include <linux/slab.h>
+#include <linux/stat.h>
#include <asm/hardware/gic.h>
#include <asm/mach/map.h>
@@ -50,3 +55,73 @@ void __init ux500_init_irq(void)
db8500_prcmu_early_init();
clk_init();
}
+
+static const char * __init ux500_get_machine(void)
+{
+ return kasprintf(GFP_KERNEL, "DB%4x", dbx500_partnumber());
+}
+
+static const char * __init ux500_get_family(void)
+{
+ return kasprintf(GFP_KERNEL, "ux500");
+}
+
+static const char * __init ux500_get_revision(void)
+{
+ unsigned int rev = dbx500_revision();
+
+ if (rev == 0x01)
+ return kasprintf(GFP_KERNEL, "%s", "ED");
+ else if (rev >= 0xA0)
+ return kasprintf(GFP_KERNEL, "%d.%d",
+ (rev >> 4) - 0xA + 1, rev & 0xf);
+
+ return kasprintf(GFP_KERNEL, "%s", "Unknown");
+}
+
+static ssize_t ux500_get_process(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ if (dbx500_id.process == 0x00)
+ return sprintf(buf, "Standard\n");
+
+ return sprintf(buf, "%02xnm\n", dbx500_id.process);
+}
+
+static void __init soc_info_populate(struct soc_device_attribute *soc_dev_attr,
+ const char *soc_id)
+{
+ soc_dev_attr->soc_id = soc_id;
+ soc_dev_attr->machine = ux500_get_machine();
+ soc_dev_attr->family = ux500_get_family();
+ soc_dev_attr->revision = ux500_get_revision();
+}
+
+struct device_attribute ux500_soc_attr =
+ __ATTR(process, S_IRUGO, ux500_get_process, NULL);
+
+struct device * __init ux500_soc_device_init(const char *soc_id)
+{
+ struct device *parent;
+ struct soc_device *soc_dev;
+ struct soc_device_attribute *soc_dev_attr;
+
+ soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
+ if (!soc_dev_attr)
+ return ERR_PTR(-ENOMEM);
+
+ soc_info_populate(soc_dev_attr, soc_id);
+
+ soc_dev = soc_device_register(soc_dev_attr);
+ if (IS_ERR_OR_NULL(soc_dev)) {
+ kfree(soc_dev_attr);
+ return NULL;
+ }
+
+ parent = soc_device_to_device(soc_dev);
+ if (!IS_ERR_OR_NULL(parent))
+ device_create_file(parent, &ux500_soc_attr);
+
+ return parent;
+}
diff --git a/arch/arm/mach-ux500/include/mach/db8500-regs.h b/arch/arm/mach-ux500/include/mach/db8500-regs.h
index 80e10f5..9ec20b9 100644
--- a/arch/arm/mach-ux500/include/mach/db8500-regs.h
+++ b/arch/arm/mach-ux500/include/mach/db8500-regs.h
@@ -161,4 +161,7 @@
#define U8500_MODEM_BASE 0xe000000
#define U8500_APE_BASE 0x6000000
+/* SoC identification number information */
+#define U8500_BB_UID_BASE (U8500_BACKUPRAM1_BASE + 0xFC0)
+
#endif
diff --git a/arch/arm/mach-ux500/include/mach/setup.h b/arch/arm/mach-ux500/include/mach/setup.h
index e46b8b1..74b43bb 100644
--- a/arch/arm/mach-ux500/include/mach/setup.h
+++ b/arch/arm/mach-ux500/include/mach/setup.h
@@ -27,6 +27,8 @@ extern void __init u5500_sdi_init(struct device *parent);
extern void __init db5500_dma_init(struct device *parent);
+extern struct device *ux500_soc_device_init(const char *soc_id);
+
/* We re-use nomadik_timer for this platform */
extern void nmdk_timer_init(void);
--
1.7.5.4
^ permalink raw reply related [flat|nested] 13+ messages in thread
end of thread, other threads:[~2012-02-06 19:22 UTC | newest]
Thread overview: 13+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2012-02-01 9:23 [PATCH 0/6] ux500: Export SoC information and some platform clean-up Lee Jones
2012-02-01 9:23 ` [PATCH 1/6] mach-ux500: pass parent pointer to each platform device Lee Jones
2012-02-01 9:23 ` [PATCH 2/6] drivers/base: add bus for System-on-Chip devices Lee Jones
2012-02-01 15:52 ` Jamie Iles
2012-02-01 16:55 ` Arnd Bergmann
2012-02-01 9:23 ` [PATCH 3/6] Documentation: add information for new sysfs soc bus functionality Lee Jones
2012-02-01 9:23 ` [PATCH 4/6] mach-ux500: export System-on-Chip information ux500 via sysfs Lee Jones
2012-02-01 9:23 ` [PATCH 5/6] mach-ux500: move top level platform devices in sysfs to /sys/devices/socX Lee Jones
2012-02-01 9:23 ` [PATCH 6/6] mach-ux500: remove intermediary add_platform_device* functions Lee Jones
-- strict thread matches above, loose matches on Subject: below --
2012-02-06 19:22 [PATCH 0/6] ux500: Export SoC information and some platform clean-up Lee Jones
2012-02-06 19:22 ` [PATCH 4/6] mach-ux500: export System-on-Chip information ux500 via sysfs Lee Jones
2012-01-21 17:08 [PATCH 0/6] ux500: Export SoC information and some platform clean-up Lee Jones
2012-01-21 17:08 ` [PATCH 4/6] mach-ux500: export System-on-Chip information ux500 via sysfs Lee Jones
2012-01-20 16:10 [PATCH 0/6] ux500: Export SoC information and some platform clean-up Lee Jones
2012-01-20 16:10 ` [PATCH 4/6] mach-ux500: export System-on-Chip information ux500 via sysfs Lee Jones
2011-10-17 11:52 [PATCH 0/6] ux500: Export SoC information and some platform clean-up Lee Jones
2011-10-17 11:52 ` [PATCH 4/6] mach-ux500: export System-on-Chip information ux500 via sysfs Lee Jones
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