* [PATCH 1/5] i2c: Convert i2c-octeon.c to use device tree.
2012-03-27 0:27 [PATCH 0/5] MIPS: OCTEON: Convert some device to use Device Tree David Daney
@ 2012-03-27 0:27 ` David Daney
[not found] ` <1332808075-8333-2-git-send-email-ddaney.cavm-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2012-03-27 0:27 ` [PATCH 2/5] netdev: mdio-octeon.c: Convert " David Daney
` (3 subsequent siblings)
4 siblings, 1 reply; 12+ messages in thread
From: David Daney @ 2012-03-27 0:27 UTC (permalink / raw)
To: linux-mips, ralf, devicetree-discuss, Grant Likely, Rob Herring
Cc: linux-kernel, David Daney, Jean Delvare (PC drivers, core),
Ben Dooks (embedded platforms), Wolfram Sang (embedded platforms),
linux-i2c
From: David Daney <david.daney@cavium.com>
There are three parts to this:
1) Remove the definitions of OCTEON_IRQ_TWSI and OCTEON_IRQ_TWSI2.
The interrupts are specified by the device tree and these hard
coded irq numbers block the used of the irq lines by the irq_domain
code.
2) Remove platform device setup code from octeon-platform.c, it is
now unused.
3) Convert i2c-octeon.c to use device tree. Part of this includes
using the devm_* functions instead of the raw counterparts, thus
simplifying error handling. No functionality is changed.
Signed-off-by: David Daney <david.daney@cavium.com>
Cc: "Jean Delvare (PC drivers, core)" <khali@linux-fr.org>
Cc: "Ben Dooks (embedded platforms)" <ben-linux@fluff.org>
Cc: "Wolfram Sang (embedded platforms)" <w.sang@pengutronix.de>
Cc: linux-i2c@vger.kernel.org
---
Should probably go via Ralf's linux-mips.org tree.
arch/mips/cavium-octeon/octeon-irq.c | 2 -
arch/mips/cavium-octeon/octeon-platform.c | 84 -------------------------
arch/mips/include/asm/octeon/octeon.h | 5 --
drivers/i2c/busses/i2c-octeon.c | 94 ++++++++++++++++-------------
4 files changed, 52 insertions(+), 133 deletions(-)
diff --git a/arch/mips/cavium-octeon/octeon-irq.c b/arch/mips/cavium-octeon/octeon-irq.c
index 550c03d..7912f96 100644
--- a/arch/mips/cavium-octeon/octeon-irq.c
+++ b/arch/mips/cavium-octeon/octeon-irq.c
@@ -1176,13 +1176,11 @@ static void __init octeon_irq_init_ciu(void)
for (i = 0; i < 4; i++)
octeon_irq_set_ciu_mapping(i + OCTEON_IRQ_PCI_MSI0, 0, i + 40, chip, handle_level_irq);
- octeon_irq_set_ciu_mapping(OCTEON_IRQ_TWSI, 0, 45, chip, handle_level_irq);
octeon_irq_set_ciu_mapping(OCTEON_IRQ_RML, 0, 46, chip, handle_level_irq);
for (i = 0; i < 4; i++)
octeon_irq_set_ciu_mapping(i + OCTEON_IRQ_TIMER0, 0, i + 52, chip, handle_edge_irq);
octeon_irq_set_ciu_mapping(OCTEON_IRQ_USB0, 0, 56, chip, handle_level_irq);
- octeon_irq_set_ciu_mapping(OCTEON_IRQ_TWSI2, 0, 59, chip, handle_level_irq);
octeon_irq_set_ciu_mapping(OCTEON_IRQ_MII0, 0, 62, chip, handle_level_irq);
octeon_irq_set_ciu_mapping(OCTEON_IRQ_BOOTDMA, 0, 63, chip, handle_level_irq);
diff --git a/arch/mips/cavium-octeon/octeon-platform.c b/arch/mips/cavium-octeon/octeon-platform.c
index 2754bc2..f62a40f 100644
--- a/arch/mips/cavium-octeon/octeon-platform.c
+++ b/arch/mips/cavium-octeon/octeon-platform.c
@@ -168,90 +168,6 @@ out:
}
device_initcall(octeon_rng_device_init);
-static struct i2c_board_info __initdata octeon_i2c_devices[] = {
- {
- I2C_BOARD_INFO("ds1337", 0x68),
- },
-};
-
-static int __init octeon_i2c_devices_init(void)
-{
- return i2c_register_board_info(0, octeon_i2c_devices,
- ARRAY_SIZE(octeon_i2c_devices));
-}
-arch_initcall(octeon_i2c_devices_init);
-
-#define OCTEON_I2C_IO_BASE 0x1180000001000ull
-#define OCTEON_I2C_IO_UNIT_OFFSET 0x200
-
-static struct octeon_i2c_data octeon_i2c_data[2];
-
-static int __init octeon_i2c_device_init(void)
-{
- struct platform_device *pd;
- int ret = 0;
- int port, num_ports;
-
- struct resource i2c_resources[] = {
- {
- .flags = IORESOURCE_MEM,
- }, {
- .flags = IORESOURCE_IRQ,
- }
- };
-
- if (OCTEON_IS_MODEL(OCTEON_CN56XX) || OCTEON_IS_MODEL(OCTEON_CN52XX))
- num_ports = 2;
- else
- num_ports = 1;
-
- for (port = 0; port < num_ports; port++) {
- octeon_i2c_data[port].sys_freq = octeon_get_io_clock_rate();
- /*FIXME: should be examined. At the moment is set for 100Khz */
- octeon_i2c_data[port].i2c_freq = 100000;
-
- pd = platform_device_alloc("i2c-octeon", port);
- if (!pd) {
- ret = -ENOMEM;
- goto out;
- }
-
- pd->dev.platform_data = octeon_i2c_data + port;
-
- i2c_resources[0].start =
- OCTEON_I2C_IO_BASE + (port * OCTEON_I2C_IO_UNIT_OFFSET);
- i2c_resources[0].end = i2c_resources[0].start + 0x1f;
- switch (port) {
- case 0:
- i2c_resources[1].start = OCTEON_IRQ_TWSI;
- i2c_resources[1].end = OCTEON_IRQ_TWSI;
- break;
- case 1:
- i2c_resources[1].start = OCTEON_IRQ_TWSI2;
- i2c_resources[1].end = OCTEON_IRQ_TWSI2;
- break;
- default:
- BUG();
- }
-
- ret = platform_device_add_resources(pd,
- i2c_resources,
- ARRAY_SIZE(i2c_resources));
- if (ret)
- goto fail;
-
- ret = platform_device_add(pd);
- if (ret)
- goto fail;
- }
- return ret;
-fail:
- platform_device_put(pd);
-out:
- return ret;
-}
-device_initcall(octeon_i2c_device_init);
-
/* Octeon SMI/MDIO interface. */
static int __init octeon_mdiobus_device_init(void)
{
diff --git a/arch/mips/include/asm/octeon/octeon.h b/arch/mips/include/asm/octeon/octeon.h
index f72f768..1e2486e 100644
--- a/arch/mips/include/asm/octeon/octeon.h
+++ b/arch/mips/include/asm/octeon/octeon.h
@@ -215,11 +215,6 @@ struct octeon_cf_data {
int dma_engine; /* -1 for no DMA */
};
-struct octeon_i2c_data {
- unsigned int sys_freq;
- unsigned int i2c_freq;
-};
-
extern void octeon_write_lcd(const char *s);
extern void octeon_check_cpu_bist(void);
extern int octeon_get_boot_debug_flag(void);
diff --git a/drivers/i2c/busses/i2c-octeon.c b/drivers/i2c/busses/i2c-octeon.c
index ee139a5..d5e2a4c 100644
--- a/drivers/i2c/busses/i2c-octeon.c
+++ b/drivers/i2c/busses/i2c-octeon.c
@@ -2,7 +2,7 @@
* (C) Copyright 2009-2010
* Nokia Siemens Networks, michael.lawnick.ext@nsn.com
*
- * Portions Copyright (C) 2010 Cavium Networks, Inc.
+ * Portions Copyright (C) 2010, 2011 Cavium Networks, Inc.
*
* This is a driver for the i2c adapter in Cavium Networks' OCTEON processors.
*
@@ -11,17 +11,18 @@
* warranty of any kind, whether express or implied.
*/
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/module.h>
+#include <linux/of_i2c.h>
+#include <linux/delay.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/init.h>
-
-#include <linux/io.h>
#include <linux/i2c.h>
-#include <linux/interrupt.h>
-#include <linux/delay.h>
-#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/of.h>
#include <asm/octeon/octeon.h>
@@ -121,10 +122,8 @@ static u8 octeon_i2c_read_sw(struct octeon_i2c *i2c, u64 eop_reg)
*/
static void octeon_i2c_write_int(struct octeon_i2c *i2c, u64 data)
{
- u64 tmp;
-
__raw_writeq(data, i2c->twsi_base + TWSI_INT);
- tmp = __raw_readq(i2c->twsi_base + TWSI_INT);
+ __raw_readq(i2c->twsi_base + TWSI_INT);
}
/**
@@ -515,94 +514,101 @@ static int __devinit octeon_i2c_probe(struct platform_device *pdev)
{
int irq, result = 0;
struct octeon_i2c *i2c;
- struct octeon_i2c_data *i2c_data;
struct resource *res_mem;
+ const __be32 *data;
+ int len;
/* All adaptors have an irq. */
irq = platform_get_irq(pdev, 0);
if (irq < 0)
return irq;
- i2c = kzalloc(sizeof(*i2c), GFP_KERNEL);
+ i2c = devm_kzalloc(&pdev->dev, sizeof(*i2c), GFP_KERNEL);
if (!i2c) {
dev_err(&pdev->dev, "kzalloc failed\n");
result = -ENOMEM;
goto out;
}
i2c->dev = &pdev->dev;
- i2c_data = pdev->dev.platform_data;
res_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (res_mem == NULL) {
dev_err(i2c->dev, "found no memory resource\n");
result = -ENXIO;
- goto fail_region;
+ goto out;
}
+ i2c->twsi_phys = res_mem->start;
+ i2c->regsize = resource_size(res_mem);
- if (i2c_data == NULL) {
- dev_err(i2c->dev, "no I2C frequency data\n");
+ /*
+ * "clock-rate" is a legacy binding, the official binding is
+ * "clock-frequency". Try the official one first and then
+ * fall back if it doesn't exist.
+ */
+ data = of_get_property(pdev->dev.of_node, "clock-frequency", &len);
+ if (!data || len != sizeof(*data))
+ data = of_get_property(pdev->dev.of_node, "clock-rate", &len);
+ if (data && len == sizeof(*data)) {
+ i2c->twsi_freq = be32_to_cpup(data);
+ } else {
+ dev_err(i2c->dev,
+ "no I2C 'clock-rate' or 'clock-frequency' property\n");
result = -ENXIO;
- goto fail_region;
+ goto out;
}
- i2c->twsi_phys = res_mem->start;
- i2c->regsize = resource_size(res_mem);
- i2c->twsi_freq = i2c_data->i2c_freq;
- i2c->sys_freq = i2c_data->sys_freq;
+ i2c->sys_freq = octeon_get_io_clock_rate();
- if (!request_mem_region(i2c->twsi_phys, i2c->regsize, res_mem->name)) {
+ if (!devm_request_mem_region(&pdev->dev, i2c->twsi_phys, i2c->regsize,
+ res_mem->name)) {
dev_err(i2c->dev, "request_mem_region failed\n");
- goto fail_region;
+ goto out;
}
- i2c->twsi_base = ioremap(i2c->twsi_phys, i2c->regsize);
+ i2c->twsi_base = devm_ioremap(&pdev->dev, i2c->twsi_phys, i2c->regsize);
init_waitqueue_head(&i2c->queue);
i2c->irq = irq;
- result = request_irq(i2c->irq, octeon_i2c_isr, 0, DRV_NAME, i2c);
+ result = devm_request_irq(&pdev->dev, i2c->irq,
+ octeon_i2c_isr, 0, DRV_NAME, i2c);
if (result < 0) {
dev_err(i2c->dev, "failed to attach interrupt\n");
- goto fail_irq;
+ goto out;
}
result = octeon_i2c_initlowlevel(i2c);
if (result) {
dev_err(i2c->dev, "init low level failed\n");
- goto fail_add;
+ goto out;
}
result = octeon_i2c_setclock(i2c);
if (result) {
dev_err(i2c->dev, "clock init failed\n");
- goto fail_add;
+ goto out;
}
i2c->adap = octeon_i2c_ops;
i2c->adap.dev.parent = &pdev->dev;
- i2c->adap.nr = pdev->id >= 0 ? pdev->id : 0;
+ i2c->adap.dev.of_node = pdev->dev.of_node;
i2c_set_adapdata(&i2c->adap, i2c);
platform_set_drvdata(pdev, i2c);
- result = i2c_add_numbered_adapter(&i2c->adap);
+ result = i2c_add_adapter(&i2c->adap);
if (result < 0) {
dev_err(i2c->dev, "failed to add adapter\n");
goto fail_add;
}
-
dev_info(i2c->dev, "version %s\n", DRV_VERSION);
- return result;
+ of_i2c_register_devices(&i2c->adap);
+
+ return 0;
fail_add:
platform_set_drvdata(pdev, NULL);
- free_irq(i2c->irq, i2c);
-fail_irq:
- iounmap(i2c->twsi_base);
- release_mem_region(i2c->twsi_phys, i2c->regsize);
-fail_region:
- kfree(i2c);
out:
return result;
};
@@ -613,19 +619,24 @@ static int __devexit octeon_i2c_remove(struct platform_device *pdev)
i2c_del_adapter(&i2c->adap);
platform_set_drvdata(pdev, NULL);
- free_irq(i2c->irq, i2c);
- iounmap(i2c->twsi_base);
- release_mem_region(i2c->twsi_phys, i2c->regsize);
- kfree(i2c);
return 0;
};
+static struct of_device_id octeon_i2c_match[] = {
+ {
+ .compatible = "cavium,octeon-3860-twsi",
+ },
+ {},
+};
+MODULE_DEVICE_TABLE(of, octeon_i2c_match);
+
static struct platform_driver octeon_i2c_driver = {
.probe = octeon_i2c_probe,
.remove = __devexit_p(octeon_i2c_remove),
.driver = {
.owner = THIS_MODULE,
.name = DRV_NAME,
+ .of_match_table = octeon_i2c_match,
},
};
@@ -635,4 +646,3 @@ MODULE_AUTHOR("Michael Lawnick <michael.lawnick.ext@nsn.com>");
MODULE_DESCRIPTION("I2C-Bus adapter for Cavium OCTEON processors");
MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_VERSION);
-MODULE_ALIAS("platform:" DRV_NAME);
--
1.7.2.3
^ permalink raw reply related [flat|nested] 12+ messages in thread* [PATCH 2/5] netdev: mdio-octeon.c: Convert to use device tree.
2012-03-27 0:27 [PATCH 0/5] MIPS: OCTEON: Convert some device to use Device Tree David Daney
2012-03-27 0:27 ` [PATCH 1/5] i2c: Convert i2c-octeon.c to use device tree David Daney
@ 2012-03-27 0:27 ` David Daney
2012-03-27 0:27 ` [PATCH 3/5] netdev: octeon_mgmt: " David Daney
` (2 subsequent siblings)
4 siblings, 0 replies; 12+ messages in thread
From: David Daney @ 2012-03-27 0:27 UTC (permalink / raw)
To: linux-mips, ralf, devicetree-discuss, Grant Likely, Rob Herring
Cc: linux-kernel, David Daney, netdev
From: David Daney <david.daney@cavium.com>
Get the MDIO bus controller addresses from the device tree, small
clean up in use of devm_*
Remove, now unused, platform device setup code.
Cc: netdev@vger.kernel.org
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: David Daney <david.daney@cavium.com>
---
Should probably go via Ralf's linux-mips.org tree.
arch/mips/cavium-octeon/octeon-platform.c | 30 ---------
drivers/net/phy/mdio-octeon.c | 92 ++++++++++++++++++-----------
2 files changed, 58 insertions(+), 64 deletions(-)
diff --git a/arch/mips/cavium-octeon/octeon-platform.c b/arch/mips/cavium-octeon/octeon-platform.c
index f62a40f..66cabc2 100644
--- a/arch/mips/cavium-octeon/octeon-platform.c
+++ b/arch/mips/cavium-octeon/octeon-platform.c
@@ -168,36 +168,6 @@ out:
}
device_initcall(octeon_rng_device_init);
-/* Octeon SMI/MDIO interface. */
-static int __init octeon_mdiobus_device_init(void)
-{
- struct platform_device *pd;
- int ret = 0;
-
- if (octeon_is_simulation())
- return 0; /* No mdio in the simulator. */
-
- /* The bus number is the platform_device id. */
- pd = platform_device_alloc("mdio-octeon", 0);
- if (!pd) {
- ret = -ENOMEM;
- goto out;
- }
-
- ret = platform_device_add(pd);
- if (ret)
- goto fail;
-
- return ret;
-fail:
- platform_device_put(pd);
-
-out:
- return ret;
-
-}
-device_initcall(octeon_mdiobus_device_init);
-
/* Octeon mgmt port Ethernet interface. */
static int __init octeon_mgmt_device_init(void)
{
diff --git a/drivers/net/phy/mdio-octeon.c b/drivers/net/phy/mdio-octeon.c
index 826d961..d4015aa 100644
--- a/drivers/net/phy/mdio-octeon.c
+++ b/drivers/net/phy/mdio-octeon.c
@@ -3,14 +3,17 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * Copyright (C) 2009 Cavium Networks
+ * Copyright (C) 2009,2011 Cavium, Inc.
*/
-#include <linux/gfp.h>
-#include <linux/init.h>
-#include <linux/module.h>
#include <linux/platform_device.h>
+#include <linux/of_mdio.h>
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/gfp.h>
#include <linux/phy.h>
+#include <linux/io.h>
#include <asm/octeon/octeon.h>
#include <asm/octeon/cvmx-smix-defs.h>
@@ -18,9 +21,17 @@
#define DRV_VERSION "1.0"
#define DRV_DESCRIPTION "Cavium Networks Octeon SMI/MDIO driver"
+#define SMI_CMD 0x0
+#define SMI_WR_DAT 0x8
+#define SMI_RD_DAT 0x10
+#define SMI_CLK 0x18
+#define SMI_EN 0x20
+
struct octeon_mdiobus {
struct mii_bus *mii_bus;
- int unit;
+ u64 register_base;
+ resource_size_t mdio_phys;
+ resource_size_t regsize;
int phy_irq[PHY_MAX_ADDR];
};
@@ -35,15 +46,15 @@ static int octeon_mdiobus_read(struct mii_bus *bus, int phy_id, int regnum)
smi_cmd.s.phy_op = 1; /* MDIO_CLAUSE_22_READ */
smi_cmd.s.phy_adr = phy_id;
smi_cmd.s.reg_adr = regnum;
- cvmx_write_csr(CVMX_SMIX_CMD(p->unit), smi_cmd.u64);
+ cvmx_write_csr(p->register_base + SMI_CMD, smi_cmd.u64);
do {
/*
* Wait 1000 clocks so we don't saturate the RSL bus
* doing reads.
*/
- cvmx_wait(1000);
- smi_rd.u64 = cvmx_read_csr(CVMX_SMIX_RD_DAT(p->unit));
+ __delay(1000);
+ smi_rd.u64 = cvmx_read_csr(p->register_base + SMI_RD_DAT);
} while (smi_rd.s.pending && --timeout);
if (smi_rd.s.val)
@@ -62,21 +73,21 @@ static int octeon_mdiobus_write(struct mii_bus *bus, int phy_id,
smi_wr.u64 = 0;
smi_wr.s.dat = val;
- cvmx_write_csr(CVMX_SMIX_WR_DAT(p->unit), smi_wr.u64);
+ cvmx_write_csr(p->register_base + SMI_WR_DAT, smi_wr.u64);
smi_cmd.u64 = 0;
smi_cmd.s.phy_op = 0; /* MDIO_CLAUSE_22_WRITE */
smi_cmd.s.phy_adr = phy_id;
smi_cmd.s.reg_adr = regnum;
- cvmx_write_csr(CVMX_SMIX_CMD(p->unit), smi_cmd.u64);
+ cvmx_write_csr(p->register_base + SMI_CMD, smi_cmd.u64);
do {
/*
* Wait 1000 clocks so we don't saturate the RSL bus
* doing reads.
*/
- cvmx_wait(1000);
- smi_wr.u64 = cvmx_read_csr(CVMX_SMIX_WR_DAT(p->unit));
+ __delay(1000);
+ smi_wr.u64 = cvmx_read_csr(p->register_base + SMI_WR_DAT);
} while (smi_wr.s.pending && --timeout);
if (timeout <= 0)
@@ -88,38 +99,44 @@ static int octeon_mdiobus_write(struct mii_bus *bus, int phy_id,
static int __devinit octeon_mdiobus_probe(struct platform_device *pdev)
{
struct octeon_mdiobus *bus;
+ struct resource *res_mem;
union cvmx_smix_en smi_en;
- int i;
int err = -ENOENT;
bus = devm_kzalloc(&pdev->dev, sizeof(*bus), GFP_KERNEL);
if (!bus)
return -ENOMEM;
- /* The platform_device id is our unit number. */
- bus->unit = pdev->id;
+ res_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
+ if (res_mem == NULL) {
+ dev_err(&pdev->dev, "found no memory resource\n");
+ err = -ENXIO;
+ goto fail;
+ }
+ bus->mdio_phys = res_mem->start;
+ bus->regsize = resource_size(res_mem);
+ if (!devm_request_mem_region(&pdev->dev, bus->mdio_phys, bus->regsize,
+ res_mem->name)) {
+ dev_err(&pdev->dev, "request_mem_region failed\n");
+ goto fail;
+ }
+ bus->register_base =
+ (u64)devm_ioremap(&pdev->dev, bus->mdio_phys, bus->regsize);
bus->mii_bus = mdiobus_alloc();
if (!bus->mii_bus)
- goto err;
+ goto fail;
smi_en.u64 = 0;
smi_en.s.en = 1;
- cvmx_write_csr(CVMX_SMIX_EN(bus->unit), smi_en.u64);
-
- /*
- * Standard Octeon evaluation boards don't support phy
- * interrupts, we need to poll.
- */
- for (i = 0; i < PHY_MAX_ADDR; i++)
- bus->phy_irq[i] = PHY_POLL;
+ cvmx_write_csr(bus->register_base + SMI_EN, smi_en.u64);
bus->mii_bus->priv = bus;
bus->mii_bus->irq = bus->phy_irq;
bus->mii_bus->name = "mdio-octeon";
- snprintf(bus->mii_bus->id, MII_BUS_ID_SIZE, "%s-%x",
- bus->mii_bus->name, bus->unit);
+ snprintf(bus->mii_bus->id, MII_BUS_ID_SIZE, "%llx", bus->register_base);
bus->mii_bus->parent = &pdev->dev;
bus->mii_bus->read = octeon_mdiobus_read;
@@ -127,20 +144,18 @@ static int __devinit octeon_mdiobus_probe(struct platform_device *pdev)
dev_set_drvdata(&pdev->dev, bus);
- err = mdiobus_register(bus->mii_bus);
+ err = of_mdiobus_register(bus->mii_bus, pdev->dev.of_node);
if (err)
- goto err_register;
+ goto fail_register;
dev_info(&pdev->dev, "Version " DRV_VERSION "\n");
return 0;
-err_register:
+fail_register:
mdiobus_free(bus->mii_bus);
-
-err:
- devm_kfree(&pdev->dev, bus);
+fail:
smi_en.u64 = 0;
- cvmx_write_csr(CVMX_SMIX_EN(bus->unit), smi_en.u64);
+ cvmx_write_csr(bus->register_base + SMI_EN, smi_en.u64);
return err;
}
@@ -154,14 +169,23 @@ static int __devexit octeon_mdiobus_remove(struct platform_device *pdev)
mdiobus_unregister(bus->mii_bus);
mdiobus_free(bus->mii_bus);
smi_en.u64 = 0;
- cvmx_write_csr(CVMX_SMIX_EN(bus->unit), smi_en.u64);
+ cvmx_write_csr(bus->register_base + SMI_EN, smi_en.u64);
return 0;
}
+static struct of_device_id octeon_mdiobus_match[] = {
+ {
+ .compatible = "cavium,octeon-3860-mdio",
+ },
+ {},
+};
+MODULE_DEVICE_TABLE(of, octeon_mdiobus_match);
+
static struct platform_driver octeon_mdiobus_driver = {
.driver = {
.name = "mdio-octeon",
.owner = THIS_MODULE,
+ .of_match_table = octeon_mdiobus_match,
},
.probe = octeon_mdiobus_probe,
.remove = __devexit_p(octeon_mdiobus_remove),
--
1.7.2.3
^ permalink raw reply related [flat|nested] 12+ messages in thread* [PATCH 3/5] netdev: octeon_mgmt: Convert to use device tree.
2012-03-27 0:27 [PATCH 0/5] MIPS: OCTEON: Convert some device to use Device Tree David Daney
2012-03-27 0:27 ` [PATCH 1/5] i2c: Convert i2c-octeon.c to use device tree David Daney
2012-03-27 0:27 ` [PATCH 2/5] netdev: mdio-octeon.c: Convert " David Daney
@ 2012-03-27 0:27 ` David Daney
2012-03-27 0:27 ` [PATCH 4/5] staging: octeon_ethernet: " David Daney
2012-03-27 0:27 ` [PATCH 5/5] MIPS: Octeon: Use device tree to register serial ports David Daney
4 siblings, 0 replies; 12+ messages in thread
From: David Daney @ 2012-03-27 0:27 UTC (permalink / raw)
To: linux-mips, ralf, devicetree-discuss, Grant Likely, Rob Herring
Cc: linux-kernel, David Daney, netdev
From: David Daney <david.daney@cavium.com>
The device tree will supply the register bank base addresses, make
register addressing relative to those. PHY connection is now
described by the device tree.
The OCTEON_IRQ_MII{0,1} symbols are also removed as they are now
unused and interfere with the irq_domain used for device tree irq
mapping.
Cc: netdev@vger.kernel.org
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: David Daney <david.daney@cavium.com>
---
Should probably go via Ralf's linux-mips.org tree.
arch/mips/cavium-octeon/octeon-irq.c | 2 -
arch/mips/cavium-octeon/octeon-platform.c | 62 ------
drivers/net/ethernet/octeon/octeon_mgmt.c | 312 +++++++++++++++++++----------
3 files changed, 207 insertions(+), 169 deletions(-)
diff --git a/arch/mips/cavium-octeon/octeon-irq.c b/arch/mips/cavium-octeon/octeon-irq.c
index 7912f96..76f1364 100644
--- a/arch/mips/cavium-octeon/octeon-irq.c
+++ b/arch/mips/cavium-octeon/octeon-irq.c
@@ -1181,7 +1181,6 @@ static void __init octeon_irq_init_ciu(void)
octeon_irq_set_ciu_mapping(i + OCTEON_IRQ_TIMER0, 0, i + 52, chip, handle_edge_irq);
octeon_irq_set_ciu_mapping(OCTEON_IRQ_USB0, 0, 56, chip, handle_level_irq);
- octeon_irq_set_ciu_mapping(OCTEON_IRQ_MII0, 0, 62, chip, handle_level_irq);
octeon_irq_set_ciu_mapping(OCTEON_IRQ_BOOTDMA, 0, 63, chip, handle_level_irq);
/* CIU_1 */
@@ -1190,7 +1189,6 @@ static void __init octeon_irq_init_ciu(void)
octeon_irq_set_ciu_mapping(OCTEON_IRQ_UART2, 1, 16, chip, handle_level_irq);
octeon_irq_set_ciu_mapping(OCTEON_IRQ_USB1, 1, 17, chip, handle_level_irq);
- octeon_irq_set_ciu_mapping(OCTEON_IRQ_MII1, 1, 18, chip, handle_level_irq);
gpio_node = of_find_compatible_node(NULL, NULL, "cavium,octeon-3860-gpio");
if (gpio_node) {
diff --git a/arch/mips/cavium-octeon/octeon-platform.c b/arch/mips/cavium-octeon/octeon-platform.c
index 66cabc2..0938df1 100644
--- a/arch/mips/cavium-octeon/octeon-platform.c
+++ b/arch/mips/cavium-octeon/octeon-platform.c
@@ -168,68 +168,6 @@ out:
}
device_initcall(octeon_rng_device_init);
-/* Octeon mgmt port Ethernet interface. */
-static int __init octeon_mgmt_device_init(void)
-{
- struct platform_device *pd;
- int ret = 0;
- int port, num_ports;
-
- struct resource mgmt_port_resource = {
- .flags = IORESOURCE_IRQ,
- .start = -1,
- .end = -1
- };
-
- if (!OCTEON_IS_MODEL(OCTEON_CN56XX) && !OCTEON_IS_MODEL(OCTEON_CN52XX))
- return 0;
-
- if (OCTEON_IS_MODEL(OCTEON_CN56XX))
- num_ports = 1;
- else
- num_ports = 2;
-
- for (port = 0; port < num_ports; port++) {
- pd = platform_device_alloc("octeon_mgmt", port);
- if (!pd) {
- ret = -ENOMEM;
- goto out;
- }
- /* No DMA restrictions */
- pd->dev.coherent_dma_mask = DMA_BIT_MASK(64);
- pd->dev.dma_mask = &pd->dev.coherent_dma_mask;
-
- switch (port) {
- case 0:
- mgmt_port_resource.start = OCTEON_IRQ_MII0;
- break;
- case 1:
- mgmt_port_resource.start = OCTEON_IRQ_MII1;
- break;
- default:
- BUG();
- }
- mgmt_port_resource.end = mgmt_port_resource.start;
-
- ret = platform_device_add_resources(pd, &mgmt_port_resource, 1);
-
- if (ret)
- goto fail;
-
- ret = platform_device_add(pd);
- if (ret)
- goto fail;
- }
- return ret;
-fail:
- platform_device_put(pd);
-
-out:
- return ret;
-
-}
-device_initcall(octeon_mgmt_device_init);
-
#ifdef CONFIG_USB
static int __init octeon_ehci_device_init(void)
diff --git a/drivers/net/ethernet/octeon/octeon_mgmt.c b/drivers/net/ethernet/octeon/octeon_mgmt.c
index cd827ff..c42bbb1 100644
--- a/drivers/net/ethernet/octeon/octeon_mgmt.c
+++ b/drivers/net/ethernet/octeon/octeon_mgmt.c
@@ -6,19 +6,21 @@
* Copyright (C) 2009 Cavium Networks
*/
-#include <linux/capability.h>
+#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
-#include <linux/init.h>
-#include <linux/module.h>
+#include <linux/etherdevice.h>
+#include <linux/capability.h>
#include <linux/interrupt.h>
-#include <linux/platform_device.h>
#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/if.h>
+#include <linux/spinlock.h>
#include <linux/if_vlan.h>
+#include <linux/of_mdio.h>
+#include <linux/module.h>
+#include <linux/of_net.h>
+#include <linux/init.h>
#include <linux/slab.h>
#include <linux/phy.h>
-#include <linux/spinlock.h>
+#include <linux/io.h>
#include <asm/octeon/octeon.h>
#include <asm/octeon/cvmx-mixx-defs.h>
@@ -58,8 +60,56 @@ union mgmt_port_ring_entry {
} s;
};
+#define MIX_ORING1 0x0
+#define MIX_ORING2 0x8
+#define MIX_IRING1 0x10
+#define MIX_IRING2 0x18
+#define MIX_CTL 0x20
+#define MIX_IRHWM 0x28
+#define MIX_IRCNT 0x30
+#define MIX_ORHWM 0x38
+#define MIX_ORCNT 0x40
+#define MIX_ISR 0x48
+#define MIX_INTENA 0x50
+#define MIX_REMCNT 0x58
+#define MIX_BIST 0x78
+
+#define AGL_GMX_PRT_CFG 0x10
+#define AGL_GMX_RX_FRM_CTL 0x18
+#define AGL_GMX_RX_FRM_MAX 0x30
+#define AGL_GMX_RX_JABBER 0x38
+#define AGL_GMX_RX_STATS_CTL 0x50
+
+#define AGL_GMX_RX_STATS_PKTS_DRP 0xb0
+#define AGL_GMX_RX_STATS_OCTS_DRP 0xb8
+#define AGL_GMX_RX_STATS_PKTS_BAD 0xc0
+
+#define AGL_GMX_RX_ADR_CTL 0x100
+#define AGL_GMX_RX_ADR_CAM_EN 0x108
+#define AGL_GMX_RX_ADR_CAM0 0x180
+#define AGL_GMX_RX_ADR_CAM1 0x188
+#define AGL_GMX_RX_ADR_CAM2 0x190
+#define AGL_GMX_RX_ADR_CAM3 0x198
+#define AGL_GMX_RX_ADR_CAM4 0x1a0
+#define AGL_GMX_RX_ADR_CAM5 0x1a8
+
+#define AGL_GMX_TX_STATS_CTL 0x268
+#define AGL_GMX_TX_CTL 0x270
+#define AGL_GMX_TX_STAT0 0x280
+#define AGL_GMX_TX_STAT1 0x288
+#define AGL_GMX_TX_STAT2 0x290
+#define AGL_GMX_TX_STAT3 0x298
+#define AGL_GMX_TX_STAT4 0x2a0
+#define AGL_GMX_TX_STAT5 0x2a8
+#define AGL_GMX_TX_STAT6 0x2b0
+#define AGL_GMX_TX_STAT7 0x2b8
+#define AGL_GMX_TX_STAT8 0x2c0
+#define AGL_GMX_TX_STAT9 0x2c8
+
struct octeon_mgmt {
struct net_device *netdev;
+ u64 mix;
+ u64 agl;
int port;
int irq;
u64 *tx_ring;
@@ -85,31 +135,34 @@ struct octeon_mgmt {
struct napi_struct napi;
struct tasklet_struct tx_clean_tasklet;
struct phy_device *phydev;
+ struct device_node *phy_np;
+ resource_size_t mix_phys;
+ resource_size_t mix_size;
+ resource_size_t agl_phys;
+ resource_size_t agl_size;
};
static void octeon_mgmt_set_rx_irq(struct octeon_mgmt *p, int enable)
{
- int port = p->port;
union cvmx_mixx_intena mix_intena;
unsigned long flags;
spin_lock_irqsave(&p->lock, flags);
- mix_intena.u64 = cvmx_read_csr(CVMX_MIXX_INTENA(port));
+ mix_intena.u64 = cvmx_read_csr(p->mix + MIX_INTENA);
mix_intena.s.ithena = enable ? 1 : 0;
- cvmx_write_csr(CVMX_MIXX_INTENA(port), mix_intena.u64);
+ cvmx_write_csr(p->mix + MIX_INTENA, mix_intena.u64);
spin_unlock_irqrestore(&p->lock, flags);
}
static void octeon_mgmt_set_tx_irq(struct octeon_mgmt *p, int enable)
{
- int port = p->port;
union cvmx_mixx_intena mix_intena;
unsigned long flags;
spin_lock_irqsave(&p->lock, flags);
- mix_intena.u64 = cvmx_read_csr(CVMX_MIXX_INTENA(port));
+ mix_intena.u64 = cvmx_read_csr(p->mix + MIX_INTENA);
mix_intena.s.othena = enable ? 1 : 0;
- cvmx_write_csr(CVMX_MIXX_INTENA(port), mix_intena.u64);
+ cvmx_write_csr(p->mix + MIX_INTENA, mix_intena.u64);
spin_unlock_irqrestore(&p->lock, flags);
}
@@ -146,7 +199,6 @@ static unsigned int ring_size_to_bytes(unsigned int ring_size)
static void octeon_mgmt_rx_fill_ring(struct net_device *netdev)
{
struct octeon_mgmt *p = netdev_priv(netdev);
- int port = p->port;
while (p->rx_current_fill < ring_max_fill(OCTEON_MGMT_RX_RING_SIZE)) {
unsigned int size;
@@ -177,24 +229,23 @@ static void octeon_mgmt_rx_fill_ring(struct net_device *netdev)
(p->rx_next_fill + 1) % OCTEON_MGMT_RX_RING_SIZE;
p->rx_current_fill++;
/* Ring the bell. */
- cvmx_write_csr(CVMX_MIXX_IRING2(port), 1);
+ cvmx_write_csr(p->mix + MIX_IRING2, 1);
}
}
static void octeon_mgmt_clean_tx_buffers(struct octeon_mgmt *p)
{
- int port = p->port;
union cvmx_mixx_orcnt mix_orcnt;
union mgmt_port_ring_entry re;
struct sk_buff *skb;
int cleaned = 0;
unsigned long flags;
- mix_orcnt.u64 = cvmx_read_csr(CVMX_MIXX_ORCNT(port));
+ mix_orcnt.u64 = cvmx_read_csr(p->mix + MIX_ORCNT);
while (mix_orcnt.s.orcnt) {
spin_lock_irqsave(&p->tx_list.lock, flags);
- mix_orcnt.u64 = cvmx_read_csr(CVMX_MIXX_ORCNT(port));
+ mix_orcnt.u64 = cvmx_read_csr(p->mix + MIX_ORCNT);
if (mix_orcnt.s.orcnt == 0) {
spin_unlock_irqrestore(&p->tx_list.lock, flags);
@@ -214,7 +265,7 @@ static void octeon_mgmt_clean_tx_buffers(struct octeon_mgmt *p)
mix_orcnt.s.orcnt = 1;
/* Acknowledge to hardware that we have the buffer. */
- cvmx_write_csr(CVMX_MIXX_ORCNT(port), mix_orcnt.u64);
+ cvmx_write_csr(p->mix + MIX_ORCNT, mix_orcnt.u64);
p->tx_current_fill--;
spin_unlock_irqrestore(&p->tx_list.lock, flags);
@@ -224,7 +275,7 @@ static void octeon_mgmt_clean_tx_buffers(struct octeon_mgmt *p)
dev_kfree_skb_any(skb);
cleaned++;
- mix_orcnt.u64 = cvmx_read_csr(CVMX_MIXX_ORCNT(port));
+ mix_orcnt.u64 = cvmx_read_csr(p->mix + MIX_ORCNT);
}
if (cleaned && netif_queue_stopped(p->netdev))
@@ -241,13 +292,12 @@ static void octeon_mgmt_clean_tx_tasklet(unsigned long arg)
static void octeon_mgmt_update_rx_stats(struct net_device *netdev)
{
struct octeon_mgmt *p = netdev_priv(netdev);
- int port = p->port;
unsigned long flags;
u64 drop, bad;
/* These reads also clear the count registers. */
- drop = cvmx_read_csr(CVMX_AGL_GMX_RXX_STATS_PKTS_DRP(port));
- bad = cvmx_read_csr(CVMX_AGL_GMX_RXX_STATS_PKTS_BAD(port));
+ drop = cvmx_read_csr(p->agl + AGL_GMX_RX_STATS_PKTS_DRP);
+ bad = cvmx_read_csr(p->agl + AGL_GMX_RX_STATS_PKTS_BAD);
if (drop || bad) {
/* Do an atomic update. */
@@ -261,15 +311,14 @@ static void octeon_mgmt_update_rx_stats(struct net_device *netdev)
static void octeon_mgmt_update_tx_stats(struct net_device *netdev)
{
struct octeon_mgmt *p = netdev_priv(netdev);
- int port = p->port;
unsigned long flags;
union cvmx_agl_gmx_txx_stat0 s0;
union cvmx_agl_gmx_txx_stat1 s1;
/* These reads also clear the count registers. */
- s0.u64 = cvmx_read_csr(CVMX_AGL_GMX_TXX_STAT0(port));
- s1.u64 = cvmx_read_csr(CVMX_AGL_GMX_TXX_STAT1(port));
+ s0.u64 = cvmx_read_csr(p->agl + AGL_GMX_TX_STAT0);
+ s1.u64 = cvmx_read_csr(p->agl + AGL_GMX_TX_STAT1);
if (s0.s.xsdef || s0.s.xscol || s1.s.scol || s1.s.mcol) {
/* Do an atomic update. */
@@ -308,7 +357,6 @@ static u64 octeon_mgmt_dequeue_rx_buffer(struct octeon_mgmt *p,
static int octeon_mgmt_receive_one(struct octeon_mgmt *p)
{
- int port = p->port;
struct net_device *netdev = p->netdev;
union cvmx_mixx_ircnt mix_ircnt;
union mgmt_port_ring_entry re;
@@ -381,18 +429,17 @@ done:
/* Tell the hardware we processed a packet. */
mix_ircnt.u64 = 0;
mix_ircnt.s.ircnt = 1;
- cvmx_write_csr(CVMX_MIXX_IRCNT(port), mix_ircnt.u64);
+ cvmx_write_csr(p->mix + MIX_IRCNT, mix_ircnt.u64);
return rc;
}
static int octeon_mgmt_receive_packets(struct octeon_mgmt *p, int budget)
{
- int port = p->port;
unsigned int work_done = 0;
union cvmx_mixx_ircnt mix_ircnt;
int rc;
- mix_ircnt.u64 = cvmx_read_csr(CVMX_MIXX_IRCNT(port));
+ mix_ircnt.u64 = cvmx_read_csr(p->mix + MIX_IRCNT);
while (work_done < budget && mix_ircnt.s.ircnt) {
rc = octeon_mgmt_receive_one(p);
@@ -400,7 +447,7 @@ static int octeon_mgmt_receive_packets(struct octeon_mgmt *p, int budget)
work_done++;
/* Check for more packets. */
- mix_ircnt.u64 = cvmx_read_csr(CVMX_MIXX_IRCNT(port));
+ mix_ircnt.u64 = cvmx_read_csr(p->mix + MIX_IRCNT);
}
octeon_mgmt_rx_fill_ring(p->netdev);
@@ -434,16 +481,16 @@ static void octeon_mgmt_reset_hw(struct octeon_mgmt *p)
union cvmx_agl_gmx_bist agl_gmx_bist;
mix_ctl.u64 = 0;
- cvmx_write_csr(CVMX_MIXX_CTL(p->port), mix_ctl.u64);
+ cvmx_write_csr(p->mix + MIX_CTL, mix_ctl.u64);
do {
- mix_ctl.u64 = cvmx_read_csr(CVMX_MIXX_CTL(p->port));
+ mix_ctl.u64 = cvmx_read_csr(p->mix + MIX_CTL);
} while (mix_ctl.s.busy);
mix_ctl.s.reset = 1;
- cvmx_write_csr(CVMX_MIXX_CTL(p->port), mix_ctl.u64);
- cvmx_read_csr(CVMX_MIXX_CTL(p->port));
+ cvmx_write_csr(p->mix + MIX_CTL, mix_ctl.u64);
+ cvmx_read_csr(p->mix + MIX_CTL);
cvmx_wait(64);
- mix_bist.u64 = cvmx_read_csr(CVMX_MIXX_BIST(p->port));
+ mix_bist.u64 = cvmx_read_csr(p->mix + MIX_BIST);
if (mix_bist.u64)
dev_warn(p->dev, "MIX failed BIST (0x%016llx)\n",
(unsigned long long)mix_bist.u64);
@@ -474,7 +521,6 @@ static void octeon_mgmt_cam_state_add(struct octeon_mgmt_cam_state *cs,
static void octeon_mgmt_set_rx_filtering(struct net_device *netdev)
{
struct octeon_mgmt *p = netdev_priv(netdev);
- int port = p->port;
union cvmx_agl_gmx_rxx_adr_ctl adr_ctl;
union cvmx_agl_gmx_prtx_cfg agl_gmx_prtx;
unsigned long flags;
@@ -520,29 +566,29 @@ static void octeon_mgmt_set_rx_filtering(struct net_device *netdev)
spin_lock_irqsave(&p->lock, flags);
/* Disable packet I/O. */
- agl_gmx_prtx.u64 = cvmx_read_csr(CVMX_AGL_GMX_PRTX_CFG(port));
+ agl_gmx_prtx.u64 = cvmx_read_csr(p->agl + AGL_GMX_PRT_CFG);
prev_packet_enable = agl_gmx_prtx.s.en;
agl_gmx_prtx.s.en = 0;
- cvmx_write_csr(CVMX_AGL_GMX_PRTX_CFG(port), agl_gmx_prtx.u64);
+ cvmx_write_csr(p->agl + AGL_GMX_PRT_CFG, agl_gmx_prtx.u64);
adr_ctl.u64 = 0;
adr_ctl.s.cam_mode = cam_mode;
adr_ctl.s.mcst = multicast_mode;
adr_ctl.s.bcst = 1; /* Allow broadcast */
- cvmx_write_csr(CVMX_AGL_GMX_RXX_ADR_CTL(port), adr_ctl.u64);
+ cvmx_write_csr(p->agl + AGL_GMX_RX_ADR_CTL, adr_ctl.u64);
- cvmx_write_csr(CVMX_AGL_GMX_RXX_ADR_CAM0(port), cam_state.cam[0]);
- cvmx_write_csr(CVMX_AGL_GMX_RXX_ADR_CAM1(port), cam_state.cam[1]);
- cvmx_write_csr(CVMX_AGL_GMX_RXX_ADR_CAM2(port), cam_state.cam[2]);
- cvmx_write_csr(CVMX_AGL_GMX_RXX_ADR_CAM3(port), cam_state.cam[3]);
- cvmx_write_csr(CVMX_AGL_GMX_RXX_ADR_CAM4(port), cam_state.cam[4]);
- cvmx_write_csr(CVMX_AGL_GMX_RXX_ADR_CAM5(port), cam_state.cam[5]);
- cvmx_write_csr(CVMX_AGL_GMX_RXX_ADR_CAM_EN(port), cam_state.cam_mask);
+ cvmx_write_csr(p->agl + AGL_GMX_RX_ADR_CAM0, cam_state.cam[0]);
+ cvmx_write_csr(p->agl + AGL_GMX_RX_ADR_CAM1, cam_state.cam[1]);
+ cvmx_write_csr(p->agl + AGL_GMX_RX_ADR_CAM2, cam_state.cam[2]);
+ cvmx_write_csr(p->agl + AGL_GMX_RX_ADR_CAM3, cam_state.cam[3]);
+ cvmx_write_csr(p->agl + AGL_GMX_RX_ADR_CAM4, cam_state.cam[4]);
+ cvmx_write_csr(p->agl + AGL_GMX_RX_ADR_CAM5, cam_state.cam[5]);
+ cvmx_write_csr(p->agl + AGL_GMX_RX_ADR_CAM_EN, cam_state.cam_mask);
/* Restore packet I/O. */
agl_gmx_prtx.s.en = prev_packet_enable;
- cvmx_write_csr(CVMX_AGL_GMX_PRTX_CFG(port), agl_gmx_prtx.u64);
+ cvmx_write_csr(p->agl + AGL_GMX_PRT_CFG, agl_gmx_prtx.u64);
spin_unlock_irqrestore(&p->lock, flags);
}
@@ -564,7 +610,6 @@ static int octeon_mgmt_set_mac_address(struct net_device *netdev, void *addr)
static int octeon_mgmt_change_mtu(struct net_device *netdev, int new_mtu)
{
struct octeon_mgmt *p = netdev_priv(netdev);
- int port = p->port;
int size_without_fcs = new_mtu + OCTEON_MGMT_RX_HEADROOM;
/*
@@ -580,8 +625,8 @@ static int octeon_mgmt_change_mtu(struct net_device *netdev, int new_mtu)
netdev->mtu = new_mtu;
- cvmx_write_csr(CVMX_AGL_GMX_RXX_FRM_MAX(port), size_without_fcs);
- cvmx_write_csr(CVMX_AGL_GMX_RXX_JABBER(port),
+ cvmx_write_csr(p->agl + AGL_GMX_RX_FRM_MAX, size_without_fcs);
+ cvmx_write_csr(p->agl + AGL_GMX_RX_JABBER,
(size_without_fcs + 7) & 0xfff8);
return 0;
@@ -591,14 +636,13 @@ static irqreturn_t octeon_mgmt_interrupt(int cpl, void *dev_id)
{
struct net_device *netdev = dev_id;
struct octeon_mgmt *p = netdev_priv(netdev);
- int port = p->port;
union cvmx_mixx_isr mixx_isr;
- mixx_isr.u64 = cvmx_read_csr(CVMX_MIXX_ISR(port));
+ mixx_isr.u64 = cvmx_read_csr(p->mix + MIX_ISR);
/* Clear any pending interrupts */
- cvmx_write_csr(CVMX_MIXX_ISR(port), mixx_isr.u64);
- cvmx_read_csr(CVMX_MIXX_ISR(port));
+ cvmx_write_csr(p->mix + MIX_ISR, mixx_isr.u64);
+ cvmx_read_csr(p->mix + MIX_ISR);
if (mixx_isr.s.irthresh) {
octeon_mgmt_disable_rx_irq(p);
@@ -629,7 +673,6 @@ static int octeon_mgmt_ioctl(struct net_device *netdev,
static void octeon_mgmt_adjust_link(struct net_device *netdev)
{
struct octeon_mgmt *p = netdev_priv(netdev);
- int port = p->port;
union cvmx_agl_gmx_prtx_cfg prtx_cfg;
unsigned long flags;
int link_changed = 0;
@@ -640,11 +683,9 @@ static void octeon_mgmt_adjust_link(struct net_device *netdev)
link_changed = 1;
if (p->last_duplex != p->phydev->duplex) {
p->last_duplex = p->phydev->duplex;
- prtx_cfg.u64 =
- cvmx_read_csr(CVMX_AGL_GMX_PRTX_CFG(port));
+ prtx_cfg.u64 = cvmx_read_csr(p->agl + AGL_GMX_PRT_CFG);
prtx_cfg.s.duplex = p->phydev->duplex;
- cvmx_write_csr(CVMX_AGL_GMX_PRTX_CFG(port),
- prtx_cfg.u64);
+ cvmx_write_csr(p->agl + AGL_GMX_PRT_CFG, prtx_cfg.u64);
}
} else {
if (p->last_link)
@@ -670,18 +711,16 @@ static void octeon_mgmt_adjust_link(struct net_device *netdev)
static int octeon_mgmt_init_phy(struct net_device *netdev)
{
struct octeon_mgmt *p = netdev_priv(netdev);
- char phy_id[MII_BUS_ID_SIZE + 3];
- if (octeon_is_simulation()) {
+ if (octeon_is_simulation() || p->phy_np == NULL) {
/* No PHYs in the simulator. */
netif_carrier_on(netdev);
return 0;
}
- snprintf(phy_id, sizeof(phy_id), PHY_ID_FMT, "mdio-octeon-0", p->port);
-
- p->phydev = phy_connect(netdev, phy_id, octeon_mgmt_adjust_link, 0,
- PHY_INTERFACE_MODE_MII);
+ p->phydev = of_phy_connect(netdev, p->phy_np,
+ octeon_mgmt_adjust_link, 0,
+ PHY_INTERFACE_MODE_MII);
if (IS_ERR(p->phydev)) {
p->phydev = NULL;
@@ -737,14 +776,14 @@ static int octeon_mgmt_open(struct net_device *netdev)
octeon_mgmt_reset_hw(p);
- mix_ctl.u64 = cvmx_read_csr(CVMX_MIXX_CTL(port));
+ mix_ctl.u64 = cvmx_read_csr(p->mix + MIX_CTL);
/* Bring it out of reset if needed. */
if (mix_ctl.s.reset) {
mix_ctl.s.reset = 0;
- cvmx_write_csr(CVMX_MIXX_CTL(port), mix_ctl.u64);
+ cvmx_write_csr(p->mix + MIX_CTL, mix_ctl.u64);
do {
- mix_ctl.u64 = cvmx_read_csr(CVMX_MIXX_CTL(port));
+ mix_ctl.u64 = cvmx_read_csr(p->mix + MIX_CTL);
} while (mix_ctl.s.reset);
}
@@ -755,17 +794,17 @@ static int octeon_mgmt_open(struct net_device *netdev)
oring1.u64 = 0;
oring1.s.obase = p->tx_ring_handle >> 3;
oring1.s.osize = OCTEON_MGMT_TX_RING_SIZE;
- cvmx_write_csr(CVMX_MIXX_ORING1(port), oring1.u64);
+ cvmx_write_csr(p->mix + MIX_ORING1, oring1.u64);
iring1.u64 = 0;
iring1.s.ibase = p->rx_ring_handle >> 3;
iring1.s.isize = OCTEON_MGMT_RX_RING_SIZE;
- cvmx_write_csr(CVMX_MIXX_IRING1(port), iring1.u64);
+ cvmx_write_csr(p->mix + MIX_IRING1, iring1.u64);
/* Disable packet I/O. */
- prtx_cfg.u64 = cvmx_read_csr(CVMX_AGL_GMX_PRTX_CFG(port));
+ prtx_cfg.u64 = cvmx_read_csr(p->agl + AGL_GMX_PRT_CFG);
prtx_cfg.s.en = 0;
- cvmx_write_csr(CVMX_AGL_GMX_PRTX_CFG(port), prtx_cfg.u64);
+ cvmx_write_csr(p->agl + AGL_GMX_PRT_CFG, prtx_cfg.u64);
memcpy(sa.sa_data, netdev->dev_addr, ETH_ALEN);
octeon_mgmt_set_mac_address(netdev, &sa);
@@ -782,7 +821,7 @@ static int octeon_mgmt_open(struct net_device *netdev)
mix_ctl.s.nbtarb = 0; /* Arbitration mode */
/* MII CB-request FIFO programmable high watermark */
mix_ctl.s.mrq_hwm = 1;
- cvmx_write_csr(CVMX_MIXX_CTL(port), mix_ctl.u64);
+ cvmx_write_csr(p->mix + MIX_CTL, mix_ctl.u64);
if (OCTEON_IS_MODEL(OCTEON_CN56XX_PASS1_X)
|| OCTEON_IS_MODEL(OCTEON_CN52XX_PASS1_X)) {
@@ -809,16 +848,16 @@ static int octeon_mgmt_open(struct net_device *netdev)
/* Clear statistics. */
/* Clear on read. */
- cvmx_write_csr(CVMX_AGL_GMX_RXX_STATS_CTL(port), 1);
- cvmx_write_csr(CVMX_AGL_GMX_RXX_STATS_PKTS_DRP(port), 0);
- cvmx_write_csr(CVMX_AGL_GMX_RXX_STATS_PKTS_BAD(port), 0);
+ cvmx_write_csr(p->agl + AGL_GMX_RX_STATS_CTL, 1);
+ cvmx_write_csr(p->agl + AGL_GMX_RX_STATS_PKTS_DRP, 0);
+ cvmx_write_csr(p->agl + AGL_GMX_RX_STATS_PKTS_BAD, 0);
- cvmx_write_csr(CVMX_AGL_GMX_TXX_STATS_CTL(port), 1);
- cvmx_write_csr(CVMX_AGL_GMX_TXX_STAT0(port), 0);
- cvmx_write_csr(CVMX_AGL_GMX_TXX_STAT1(port), 0);
+ cvmx_write_csr(p->agl + AGL_GMX_TX_STATS_CTL, 1);
+ cvmx_write_csr(p->agl + AGL_GMX_TX_STAT0, 0);
+ cvmx_write_csr(p->agl + AGL_GMX_TX_STAT1, 0);
/* Clear any pending interrupts */
- cvmx_write_csr(CVMX_MIXX_ISR(port), cvmx_read_csr(CVMX_MIXX_ISR(port)));
+ cvmx_write_csr(p->mix + MIX_ISR, cvmx_read_csr(p->mix + MIX_ISR));
if (request_irq(p->irq, octeon_mgmt_interrupt, 0, netdev->name,
netdev)) {
@@ -829,18 +868,18 @@ static int octeon_mgmt_open(struct net_device *netdev)
/* Interrupt every single RX packet */
mix_irhwm.u64 = 0;
mix_irhwm.s.irhwm = 0;
- cvmx_write_csr(CVMX_MIXX_IRHWM(port), mix_irhwm.u64);
+ cvmx_write_csr(p->mix + MIX_IRHWM, mix_irhwm.u64);
/* Interrupt when we have 1 or more packets to clean. */
mix_orhwm.u64 = 0;
mix_orhwm.s.orhwm = 1;
- cvmx_write_csr(CVMX_MIXX_ORHWM(port), mix_orhwm.u64);
+ cvmx_write_csr(p->mix + MIX_ORHWM, mix_orhwm.u64);
/* Enable receive and transmit interrupts */
mix_intena.u64 = 0;
mix_intena.s.ithena = 1;
mix_intena.s.othena = 1;
- cvmx_write_csr(CVMX_MIXX_INTENA(port), mix_intena.u64);
+ cvmx_write_csr(p->mix + MIX_INTENA, mix_intena.u64);
/* Enable packet I/O. */
@@ -871,7 +910,7 @@ static int octeon_mgmt_open(struct net_device *netdev)
* frame. GMX checks that the PREAMBLE is sent correctly.
*/
rxx_frm_ctl.s.pre_chk = 1;
- cvmx_write_csr(CVMX_AGL_GMX_RXX_FRM_CTL(port), rxx_frm_ctl.u64);
+ cvmx_write_csr(p->agl + AGL_GMX_RX_FRM_CTL, rxx_frm_ctl.u64);
/* Enable the AGL block */
agl_gmx_inf_mode.u64 = 0;
@@ -879,13 +918,13 @@ static int octeon_mgmt_open(struct net_device *netdev)
cvmx_write_csr(CVMX_AGL_GMX_INF_MODE, agl_gmx_inf_mode.u64);
/* Configure the port duplex and enables */
- prtx_cfg.u64 = cvmx_read_csr(CVMX_AGL_GMX_PRTX_CFG(port));
+ prtx_cfg.u64 = cvmx_read_csr(p->agl + AGL_GMX_PRT_CFG);
prtx_cfg.s.tx_en = 1;
prtx_cfg.s.rx_en = 1;
prtx_cfg.s.en = 1;
p->last_duplex = 1;
prtx_cfg.s.duplex = p->last_duplex;
- cvmx_write_csr(CVMX_AGL_GMX_PRTX_CFG(port), prtx_cfg.u64);
+ cvmx_write_csr(p->agl + AGL_GMX_PRT_CFG, prtx_cfg.u64);
p->last_link = 0;
netif_carrier_off(netdev);
@@ -949,7 +988,6 @@ static int octeon_mgmt_stop(struct net_device *netdev)
static int octeon_mgmt_xmit(struct sk_buff *skb, struct net_device *netdev)
{
struct octeon_mgmt *p = netdev_priv(netdev);
- int port = p->port;
union mgmt_port_ring_entry re;
unsigned long flags;
int rv = NETDEV_TX_BUSY;
@@ -993,7 +1031,7 @@ static int octeon_mgmt_xmit(struct sk_buff *skb, struct net_device *netdev)
netdev->stats.tx_bytes += skb->len;
/* Ring the bell. */
- cvmx_write_csr(CVMX_MIXX_ORING2(port), 1);
+ cvmx_write_csr(p->mix + MIX_ORING2, 1);
rv = NETDEV_TX_OK;
out:
@@ -1071,10 +1109,14 @@ static const struct net_device_ops octeon_mgmt_ops = {
static int __devinit octeon_mgmt_probe(struct platform_device *pdev)
{
- struct resource *res_irq;
struct net_device *netdev;
struct octeon_mgmt *p;
- int i;
+ const __be32 *data;
+ const u8 *mac;
+ struct resource *res_mix;
+ struct resource *res_agl;
+ int len;
+ int result;
netdev = alloc_etherdev(sizeof(struct octeon_mgmt));
if (netdev == NULL)
@@ -1088,14 +1130,63 @@ static int __devinit octeon_mgmt_probe(struct platform_device *pdev)
p->netdev = netdev;
p->dev = &pdev->dev;
- p->port = pdev->id;
+ data = of_get_property(pdev->dev.of_node, "cell-index", &len);
+ if (data && len == sizeof(*data)) {
+ p->port = be32_to_cpup(data);
+ } else {
+ dev_err(&pdev->dev, "no 'cell-index' property\n");
+ result = -ENXIO;
+ goto err;
+ }
+
snprintf(netdev->name, IFNAMSIZ, "mgmt%d", p->port);
- res_irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
- if (!res_irq)
+ result = platform_get_irq(pdev, 0);
+ if (result < 0)
+ goto err;
+
+ p->irq = result;
+
+ res_mix = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (res_mix == NULL) {
+ dev_err(&pdev->dev, "no 'reg' resource\n");
+ result = -ENXIO;
+ goto err;
+ }
+
+ res_agl = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ if (res_agl == NULL) {
+ dev_err(&pdev->dev, "no 'reg' resource\n");
+ result = -ENXIO;
+ goto err;
+ }
+
+ p->mix_phys = res_mix->start;
+ p->mix_size = resource_size(res_mix);
+ p->agl_phys = res_agl->start;
+ p->agl_size = resource_size(res_agl);
+
+
+ if (!devm_request_mem_region(&pdev->dev, p->mix_phys, p->mix_size,
+ res_mix->name)) {
+ dev_err(&pdev->dev, "request_mem_region (%s) failed\n",
+ res_mix->name);
+ result = -ENXIO;
+ goto err;
+ }
+
+ if (!devm_request_mem_region(&pdev->dev, p->agl_phys, p->agl_size,
+ res_agl->name)) {
+ result = -ENXIO;
+ dev_err(&pdev->dev, "request_mem_region (%s) failed\n",
+ res_agl->name);
goto err;
+ }
+
+
+ p->mix = (u64)devm_ioremap(&pdev->dev, p->mix_phys, p->mix_size);
+ p->agl = (u64)devm_ioremap(&pdev->dev, p->agl_phys, p->agl_size);
- p->irq = res_irq->start;
spin_lock_init(&p->lock);
skb_queue_head_init(&p->tx_list);
@@ -1108,24 +1199,26 @@ static int __devinit octeon_mgmt_probe(struct platform_device *pdev)
netdev->netdev_ops = &octeon_mgmt_ops;
netdev->ethtool_ops = &octeon_mgmt_ethtool_ops;
- /* The mgmt ports get the first N MACs. */
- for (i = 0; i < 6; i++)
- netdev->dev_addr[i] = octeon_bootinfo->mac_addr_base[i];
- netdev->dev_addr[5] += p->port;
+ mac = of_get_mac_address(pdev->dev.of_node);
+
+ if (mac)
+ memcpy(netdev->dev_addr, mac, 6);
- if (p->port >= octeon_bootinfo->mac_addr_count)
- dev_err(&pdev->dev,
- "Error %s: Using MAC outside of the assigned range: %pM\n",
- netdev->name, netdev->dev_addr);
+ p->phy_np = of_parse_phandle(pdev->dev.of_node, "phy-handle", 0);
- if (register_netdev(netdev))
+ pdev->dev.coherent_dma_mask = DMA_BIT_MASK(64);
+ pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
+
+ result = register_netdev(netdev);
+ if (result)
goto err;
dev_info(&pdev->dev, "Version " DRV_VERSION "\n");
return 0;
+
err:
free_netdev(netdev);
- return -ENOENT;
+ return result;
}
static int __devexit octeon_mgmt_remove(struct platform_device *pdev)
@@ -1137,10 +1230,19 @@ static int __devexit octeon_mgmt_remove(struct platform_device *pdev)
return 0;
}
+static struct of_device_id octeon_mgmt_match[] = {
+ {
+ .compatible = "cavium,octeon-5750-mix",
+ },
+ {},
+};
+MODULE_DEVICE_TABLE(of, octeon_mgmt_match);
+
static struct platform_driver octeon_mgmt_driver = {
.driver = {
.name = "octeon_mgmt",
.owner = THIS_MODULE,
+ .of_match_table = octeon_mgmt_match,
},
.probe = octeon_mgmt_probe,
.remove = __devexit_p(octeon_mgmt_remove),
--
1.7.2.3
^ permalink raw reply related [flat|nested] 12+ messages in thread* [PATCH 4/5] staging: octeon_ethernet: Convert to use device tree.
2012-03-27 0:27 [PATCH 0/5] MIPS: OCTEON: Convert some device to use Device Tree David Daney
` (2 preceding siblings ...)
2012-03-27 0:27 ` [PATCH 3/5] netdev: octeon_mgmt: " David Daney
@ 2012-03-27 0:27 ` David Daney
2012-04-10 16:43 ` Greg Kroah-Hartman
2012-03-27 0:27 ` [PATCH 5/5] MIPS: Octeon: Use device tree to register serial ports David Daney
4 siblings, 1 reply; 12+ messages in thread
From: David Daney @ 2012-03-27 0:27 UTC (permalink / raw)
To: linux-mips, ralf, devicetree-discuss, Grant Likely, Rob Herring
Cc: linux-kernel, David Daney, netdev, Greg Kroah-Hartman
From: David Daney <david.daney@cavium.com>
Get MAC address and PHY connection from the device tree. The driver
is converted to a platform driver.
Cc: netdev@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: David Daney <david.daney@cavium.com>
---
Should probably go via Ralf's linux-mips.org tree.
drivers/staging/octeon/ethernet-mdio.c | 28 +++---
drivers/staging/octeon/ethernet.c | 153 +++++++++++++++++++-----------
drivers/staging/octeon/octeon-ethernet.h | 3 +
3 files changed, 117 insertions(+), 67 deletions(-)
diff --git a/drivers/staging/octeon/ethernet-mdio.c b/drivers/staging/octeon/ethernet-mdio.c
index e31949c..f15b31b 100644
--- a/drivers/staging/octeon/ethernet-mdio.c
+++ b/drivers/staging/octeon/ethernet-mdio.c
@@ -28,6 +28,7 @@
#include <linux/ethtool.h>
#include <linux/phy.h>
#include <linux/ratelimit.h>
+#include <linux/of_mdio.h>
#include <net/dst.h>
@@ -161,22 +162,23 @@ static void cvm_oct_adjust_link(struct net_device *dev)
int cvm_oct_phy_setup_device(struct net_device *dev)
{
struct octeon_ethernet *priv = netdev_priv(dev);
+ struct device_node *phy_node;
- int phy_addr = cvmx_helper_board_get_mii_address(priv->port);
- if (phy_addr != -1) {
- char phy_id[MII_BUS_ID_SIZE + 3];
+ if (!priv->of_node)
+ return 0;
- snprintf(phy_id, sizeof(phy_id), PHY_ID_FMT, "mdio-octeon-0", phy_addr);
+ phy_node = of_parse_phandle(priv->of_node, "phy-handle", 0);
+ if (!phy_node)
+ return 0;
- priv->phydev = phy_connect(dev, phy_id, cvm_oct_adjust_link, 0,
- PHY_INTERFACE_MODE_GMII);
+ priv->phydev = of_phy_connect(dev, phy_node, cvm_oct_adjust_link, 0,
+ PHY_INTERFACE_MODE_GMII);
+
+ if (priv->phydev == NULL)
+ return -ENODEV;
+
+ priv->last_link = 0;
+ phy_start_aneg(priv->phydev);
- if (IS_ERR(priv->phydev)) {
- priv->phydev = NULL;
- return -1;
- }
- priv->last_link = 0;
- phy_start_aneg(priv->phydev);
- }
return 0;
}
diff --git a/drivers/staging/octeon/ethernet.c b/drivers/staging/octeon/ethernet.c
index 9112cd8..7df97fc 100644
--- a/drivers/staging/octeon/ethernet.c
+++ b/drivers/staging/octeon/ethernet.c
@@ -24,6 +24,7 @@
* This file may also be available under a different license from Cavium.
* Contact Cavium Networks for more information
**********************************************************************/
+#include <linux/platform_device.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/module.h>
@@ -31,6 +32,7 @@
#include <linux/etherdevice.h>
#include <linux/phy.h>
#include <linux/slab.h>
+#include <linux/of_net.h>
#include <net/dst.h>
@@ -112,15 +114,6 @@ int rx_napi_weight = 32;
module_param(rx_napi_weight, int, 0444);
MODULE_PARM_DESC(rx_napi_weight, "The NAPI WEIGHT parameter.");
-/*
- * The offset from mac_addr_base that should be used for the next port
- * that is configured. By convention, if any mgmt ports exist on the
- * chip, they get the first mac addresses, The ports controlled by
- * this driver are numbered sequencially following any mgmt addresses
- * that may exist.
- */
-static unsigned int cvm_oct_mac_addr_offset;
-
/**
* cvm_oct_poll_queue - Workqueue for polling operations.
*/
@@ -175,7 +168,7 @@ static void cvm_oct_periodic_worker(struct work_struct *work)
queue_delayed_work(cvm_oct_poll_queue, &priv->port_periodic_work, HZ);
}
-static __init void cvm_oct_configure_common_hw(void)
+static __devinit void cvm_oct_configure_common_hw(void)
{
/* Setup the FPA */
cvmx_fpa_enable();
@@ -395,23 +388,21 @@ static void cvm_oct_common_set_multicast_list(struct net_device *dev)
* Returns Zero on success
*/
-static int cvm_oct_common_set_mac_address(struct net_device *dev, void *addr)
+static int cvm_oct_set_mac_filter(struct net_device *dev)
{
struct octeon_ethernet *priv = netdev_priv(dev);
union cvmx_gmxx_prtx_cfg gmx_cfg;
int interface = INTERFACE(priv->port);
int index = INDEX(priv->port);
- memcpy(dev->dev_addr, addr + 2, 6);
-
if ((interface < 2)
&& (cvmx_helper_interface_get_mode(interface) !=
CVMX_HELPER_INTERFACE_MODE_SPI)) {
int i;
- uint8_t *ptr = addr;
+ uint8_t *ptr = dev->dev_addr;
uint64_t mac = 0;
for (i = 0; i < 6; i++)
- mac = (mac << 8) | (uint64_t) (ptr[i + 2]);
+ mac = (mac << 8) | (uint64_t)ptr[i];
gmx_cfg.u64 =
cvmx_read_csr(CVMX_GMXX_PRTX_CFG(index, interface));
@@ -420,17 +411,17 @@ static int cvm_oct_common_set_mac_address(struct net_device *dev, void *addr)
cvmx_write_csr(CVMX_GMXX_SMACX(index, interface), mac);
cvmx_write_csr(CVMX_GMXX_RXX_ADR_CAM0(index, interface),
- ptr[2]);
+ ptr[0]);
cvmx_write_csr(CVMX_GMXX_RXX_ADR_CAM1(index, interface),
- ptr[3]);
+ ptr[1]);
cvmx_write_csr(CVMX_GMXX_RXX_ADR_CAM2(index, interface),
- ptr[4]);
+ ptr[2]);
cvmx_write_csr(CVMX_GMXX_RXX_ADR_CAM3(index, interface),
- ptr[5]);
+ ptr[3]);
cvmx_write_csr(CVMX_GMXX_RXX_ADR_CAM4(index, interface),
- ptr[6]);
+ ptr[4]);
cvmx_write_csr(CVMX_GMXX_RXX_ADR_CAM5(index, interface),
- ptr[7]);
+ ptr[5]);
cvm_oct_common_set_multicast_list(dev);
cvmx_write_csr(CVMX_GMXX_PRTX_CFG(index, interface),
gmx_cfg.u64);
@@ -438,6 +429,15 @@ static int cvm_oct_common_set_mac_address(struct net_device *dev, void *addr)
return 0;
}
+static int cvm_oct_common_set_mac_address(struct net_device *dev, void *addr)
+{
+ int r = eth_mac_addr(dev, addr);
+
+ if (r)
+ return r;
+ return cvm_oct_set_mac_filter(dev);
+}
+
/**
* cvm_oct_common_init - per network device initialization
* @dev: Device to initialize
@@ -447,26 +447,17 @@ static int cvm_oct_common_set_mac_address(struct net_device *dev, void *addr)
int cvm_oct_common_init(struct net_device *dev)
{
struct octeon_ethernet *priv = netdev_priv(dev);
- struct sockaddr sa;
- u64 mac = ((u64)(octeon_bootinfo->mac_addr_base[0] & 0xff) << 40) |
- ((u64)(octeon_bootinfo->mac_addr_base[1] & 0xff) << 32) |
- ((u64)(octeon_bootinfo->mac_addr_base[2] & 0xff) << 24) |
- ((u64)(octeon_bootinfo->mac_addr_base[3] & 0xff) << 16) |
- ((u64)(octeon_bootinfo->mac_addr_base[4] & 0xff) << 8) |
- (u64)(octeon_bootinfo->mac_addr_base[5] & 0xff);
-
- mac += cvm_oct_mac_addr_offset;
- sa.sa_data[0] = (mac >> 40) & 0xff;
- sa.sa_data[1] = (mac >> 32) & 0xff;
- sa.sa_data[2] = (mac >> 24) & 0xff;
- sa.sa_data[3] = (mac >> 16) & 0xff;
- sa.sa_data[4] = (mac >> 8) & 0xff;
- sa.sa_data[5] = mac & 0xff;
-
- if (cvm_oct_mac_addr_offset >= octeon_bootinfo->mac_addr_count)
- printk(KERN_DEBUG "%s: Using MAC outside of the assigned range:"
- " %pM\n", dev->name, sa.sa_data);
- cvm_oct_mac_addr_offset++;
+ const u8 *mac = NULL;
+
+ if (priv->of_node)
+ mac = of_get_mac_address(priv->of_node);
+
+ if (mac && is_valid_ether_addr(mac)) {
+ memcpy(dev->dev_addr, mac, ETH_ALEN);
+ dev->addr_assign_type &= ~NET_ADDR_RANDOM;
+ } else {
+ eth_hw_addr_random(dev);
+ }
/*
* Force the interface to use the POW send if always_use_pow
@@ -487,7 +478,7 @@ int cvm_oct_common_init(struct net_device *dev)
SET_ETHTOOL_OPS(dev, &cvm_oct_ethtool_ops);
cvm_oct_phy_setup_device(dev);
- dev->netdev_ops->ndo_set_mac_address(dev, &sa);
+ cvm_oct_set_mac_filter(dev);
dev->netdev_ops->ndo_change_mtu(dev, dev->mtu);
/*
@@ -594,22 +585,55 @@ static const struct net_device_ops cvm_oct_pow_netdev_ops = {
extern void octeon_mdiobus_force_mod_depencency(void);
-static int __init cvm_oct_init_module(void)
+static struct device_node * __devinit cvm_oct_of_get_child(const struct device_node *parent,
+ int reg_val)
+{
+ struct device_node *node = NULL;
+ int size;
+ const __be32 *addr;
+
+ for (;;) {
+ node = of_get_next_child(parent, node);
+ if (!node)
+ break;
+ addr = of_get_property(node, "reg", &size);
+ if (addr && (be32_to_cpu(*addr) == reg_val))
+ break;
+ }
+ return node;
+}
+
+static struct device_node * __devinit cvm_oct_node_for_port(struct device_node *pip,
+ int interface, int port)
+{
+ struct device_node *ni, *np;
+
+ ni = cvm_oct_of_get_child(pip, interface);
+ if (!ni)
+ return NULL;
+
+ np = cvm_oct_of_get_child(ni, port);
+ of_node_put(ni);
+
+ return np;
+}
+
+static int __devinit cvm_oct_probe(struct platform_device *pdev)
{
int num_interfaces;
int interface;
int fau = FAU_NUM_PACKET_BUFFERS_TO_FREE;
int qos;
+ struct device_node *pip;
octeon_mdiobus_force_mod_depencency();
pr_notice("cavium-ethernet %s\n", OCTEON_ETHERNET_VERSION);
- if (OCTEON_IS_MODEL(OCTEON_CN52XX))
- cvm_oct_mac_addr_offset = 2; /* First two are the mgmt ports. */
- else if (OCTEON_IS_MODEL(OCTEON_CN56XX))
- cvm_oct_mac_addr_offset = 1; /* First one is the mgmt port. */
- else
- cvm_oct_mac_addr_offset = 0;
+ pip = pdev->dev.of_node;
+ if (!pip) {
+ pr_err("Error: No 'pip' in /aliases\n");
+ return -EINVAL;
+ }
cvm_oct_poll_queue = create_singlethread_workqueue("octeon-ethernet");
if (cvm_oct_poll_queue == NULL) {
@@ -688,10 +712,11 @@ static int __init cvm_oct_init_module(void)
cvmx_helper_interface_get_mode(interface);
int num_ports = cvmx_helper_ports_on_interface(interface);
int port;
+ int port_index;
- for (port = cvmx_helper_get_ipd_port(interface, 0);
+ for (port_index = 0, port = cvmx_helper_get_ipd_port(interface, 0);
port < cvmx_helper_get_ipd_port(interface, num_ports);
- port++) {
+ port_index++, port++) {
struct octeon_ethernet *priv;
struct net_device *dev =
alloc_etherdev(sizeof(struct octeon_ethernet));
@@ -702,6 +727,7 @@ static int __init cvm_oct_init_module(void)
/* Initialize the device private structure. */
priv = netdev_priv(dev);
+ priv->of_node = cvm_oct_node_for_port(pip, interface, port_index);
INIT_DELAYED_WORK(&priv->port_periodic_work,
cvm_oct_periodic_worker);
@@ -786,7 +812,7 @@ static int __init cvm_oct_init_module(void)
return 0;
}
-static void __exit cvm_oct_cleanup_module(void)
+static int __devexit cvm_oct_remove(struct platform_device *pdev)
{
int port;
@@ -834,10 +860,29 @@ static void __exit cvm_oct_cleanup_module(void)
if (CVMX_FPA_OUTPUT_BUFFER_POOL != CVMX_FPA_PACKET_POOL)
cvm_oct_mem_empty_fpa(CVMX_FPA_OUTPUT_BUFFER_POOL,
CVMX_FPA_OUTPUT_BUFFER_POOL_SIZE, 128);
+ return 0;
}
+static struct of_device_id cvm_oct_match[] = {
+ {
+ .compatible = "cavium,octeon-3860-pip",
+ },
+ {},
+};
+MODULE_DEVICE_TABLE(of, cvm_oct_match);
+
+static struct platform_driver cvm_oct_driver = {
+ .probe = cvm_oct_probe,
+ .remove = __devexit_p(cvm_oct_remove),
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = KBUILD_MODNAME,
+ .of_match_table = cvm_oct_match,
+ },
+};
+
+module_platform_driver(cvm_oct_driver);
+
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Cavium Networks <support@caviumnetworks.com>");
MODULE_DESCRIPTION("Cavium Networks Octeon ethernet driver.");
-module_init(cvm_oct_init_module);
-module_exit(cvm_oct_cleanup_module);
diff --git a/drivers/staging/octeon/octeon-ethernet.h b/drivers/staging/octeon/octeon-ethernet.h
index d581925..9360e22 100644
--- a/drivers/staging/octeon/octeon-ethernet.h
+++ b/drivers/staging/octeon/octeon-ethernet.h
@@ -31,6 +31,8 @@
#ifndef OCTEON_ETHERNET_H
#define OCTEON_ETHERNET_H
+#include <linux/of.h>
+
/**
* This is the definition of the Ethernet driver's private
* driver state stored in netdev_priv(dev).
@@ -59,6 +61,7 @@ struct octeon_ethernet {
void (*poll) (struct net_device *dev);
struct delayed_work port_periodic_work;
struct work_struct port_work; /* may be unused. */
+ struct device_node *of_node;
};
int cvm_oct_free_work(void *work_queue_entry);
--
1.7.2.3
^ permalink raw reply related [flat|nested] 12+ messages in thread* Re: [PATCH 4/5] staging: octeon_ethernet: Convert to use device tree.
2012-03-27 0:27 ` [PATCH 4/5] staging: octeon_ethernet: " David Daney
@ 2012-04-10 16:43 ` Greg Kroah-Hartman
0 siblings, 0 replies; 12+ messages in thread
From: Greg Kroah-Hartman @ 2012-04-10 16:43 UTC (permalink / raw)
To: David Daney
Cc: linux-mips, ralf, devicetree-discuss, Grant Likely, Rob Herring,
linux-kernel, David Daney, netdev
On Mon, Mar 26, 2012 at 05:27:54PM -0700, David Daney wrote:
> From: David Daney <david.daney@cavium.com>
>
> Get MAC address and PHY connection from the device tree. The driver
> is converted to a platform driver.
>
> Cc: netdev@vger.kernel.org
> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Signed-off-by: David Daney <david.daney@cavium.com>
> ---
>
> Should probably go via Ralf's linux-mips.org tree.
That's fine with me:
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
^ permalink raw reply [flat|nested] 12+ messages in thread
* [PATCH 5/5] MIPS: Octeon: Use device tree to register serial ports.
2012-03-27 0:27 [PATCH 0/5] MIPS: OCTEON: Convert some device to use Device Tree David Daney
` (3 preceding siblings ...)
2012-03-27 0:27 ` [PATCH 4/5] staging: octeon_ethernet: " David Daney
@ 2012-03-27 0:27 ` David Daney
4 siblings, 0 replies; 12+ messages in thread
From: David Daney @ 2012-03-27 0:27 UTC (permalink / raw)
To: linux-mips, ralf, devicetree-discuss, Grant Likely, Rob Herring
Cc: linux-kernel, David Daney
From: David Daney <david.daney@cavium.com>
Switch to using the device tree to register serial ports.
Add all the ports with compatible = "cavium,octeon-3860-uart". Octeon serial
ports have their own device type, required port flags, and I/O
functions, so using of_serial.c is not indicated.
We need to do this as late_initcall, as the 8250 driver must be
initialized before we add any ports. 8250 initialization is done at
device_initcall time.
The OCTEON_IRQ_UART{0,1,2} symbols are removed as they are now unused
and interfere with irq_domain used by the device tree code.
Signed-off-by: David Daney <david.daney@cavium.com>
---
Should probably go via Ralf's linux-mips.org tree.
arch/mips/cavium-octeon/octeon-irq.c | 4 -
arch/mips/cavium-octeon/serial.c | 134 +++++++++++++--------------------
2 files changed, 53 insertions(+), 85 deletions(-)
diff --git a/arch/mips/cavium-octeon/octeon-irq.c b/arch/mips/cavium-octeon/octeon-irq.c
index 76f1364..c7eaa23 100644
--- a/arch/mips/cavium-octeon/octeon-irq.c
+++ b/arch/mips/cavium-octeon/octeon-irq.c
@@ -1168,9 +1168,6 @@ static void __init octeon_irq_init_ciu(void)
octeon_irq_set_ciu_mapping(OCTEON_IRQ_MBOX0, 0, 32, chip_mbox, handle_percpu_irq);
octeon_irq_set_ciu_mapping(OCTEON_IRQ_MBOX1, 0, 33, chip_mbox, handle_percpu_irq);
- octeon_irq_set_ciu_mapping(OCTEON_IRQ_UART0, 0, 34, chip, handle_level_irq);
- octeon_irq_set_ciu_mapping(OCTEON_IRQ_UART1, 0, 35, chip, handle_level_irq);
-
for (i = 0; i < 4; i++)
octeon_irq_set_ciu_mapping(i + OCTEON_IRQ_PCI_INT0, 0, i + 36, chip, handle_level_irq);
for (i = 0; i < 4; i++)
@@ -1187,7 +1184,6 @@ static void __init octeon_irq_init_ciu(void)
for (i = 0; i < 16; i++)
octeon_irq_set_ciu_mapping(i + OCTEON_IRQ_WDOG0, 1, i + 0, chip_wd, handle_level_irq);
- octeon_irq_set_ciu_mapping(OCTEON_IRQ_UART2, 1, 16, chip, handle_level_irq);
octeon_irq_set_ciu_mapping(OCTEON_IRQ_USB1, 1, 17, chip, handle_level_irq);
gpio_node = of_find_compatible_node(NULL, NULL, "cavium,octeon-3860-gpio");
diff --git a/arch/mips/cavium-octeon/serial.c b/arch/mips/cavium-octeon/serial.c
index 057f0ae..138b221 100644
--- a/arch/mips/cavium-octeon/serial.c
+++ b/arch/mips/cavium-octeon/serial.c
@@ -43,95 +43,67 @@ void octeon_serial_out(struct uart_port *up, int offset, int value)
cvmx_write_csr((uint64_t)(up->membase + (offset << 3)), (u8)value);
}
-/*
- * Allocated in .bss, so it is all zeroed.
- */
-#define OCTEON_MAX_UARTS 3
-static struct plat_serial8250_port octeon_uart8250_data[OCTEON_MAX_UARTS + 1];
-static struct platform_device octeon_uart8250_device = {
- .name = "serial8250",
- .id = PLAT8250_DEV_PLATFORM,
- .dev = {
- .platform_data = octeon_uart8250_data,
- },
-};
-
-static void __init octeon_uart_set_common(struct plat_serial8250_port *p)
+static int __devinit octeon_serial_probe(struct platform_device *pdev)
{
- p->flags = ASYNC_SKIP_TEST | UPF_SHARE_IRQ | UPF_FIXED_TYPE;
- p->type = PORT_OCTEON;
- p->iotype = UPIO_MEM;
- p->regshift = 3; /* I/O addresses are every 8 bytes */
+ int irq, res;
+ struct resource *res_mem;
+ struct uart_port port;
+
+ /* All adaptors have an irq. */
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0)
+ return irq;
+
+ memset(&port, 0, sizeof(port));
+
+ port.flags = ASYNC_SKIP_TEST | UPF_SHARE_IRQ | UPF_FIXED_TYPE;
+ port.type = PORT_OCTEON;
+ port.iotype = UPIO_MEM;
+ port.regshift = 3;
+ port.dev = &pdev->dev;
+
if (octeon_is_simulation())
/* Make simulator output fast*/
- p->uartclk = 115200 * 16;
+ port.uartclk = 115200 * 16;
else
- p->uartclk = octeon_get_io_clock_rate();
- p->serial_in = octeon_serial_in;
- p->serial_out = octeon_serial_out;
-}
+ port.uartclk = octeon_get_io_clock_rate();
-static int __init octeon_serial_init(void)
-{
- int enable_uart0;
- int enable_uart1;
- int enable_uart2;
- struct plat_serial8250_port *p;
-
-#ifdef CONFIG_CAVIUM_OCTEON_2ND_KERNEL
- /*
- * If we are configured to run as the second of two kernels,
- * disable uart0 and enable uart1. Uart0 is owned by the first
- * kernel
- */
- enable_uart0 = 0;
- enable_uart1 = 1;
-#else
- /*
- * We are configured for the first kernel. We'll enable uart0
- * if the bootloader told us to use 0, otherwise will enable
- * uart 1.
- */
- enable_uart0 = (octeon_get_boot_uart() == 0);
- enable_uart1 = (octeon_get_boot_uart() == 1);
-#ifdef CONFIG_KGDB
- enable_uart1 = 1;
-#endif
-#endif
-
- /* Right now CN52XX is the only chip with a third uart */
- enable_uart2 = OCTEON_IS_MODEL(OCTEON_CN52XX);
-
- p = octeon_uart8250_data;
- if (enable_uart0) {
- /* Add a ttyS device for hardware uart 0 */
- octeon_uart_set_common(p);
- p->membase = (void *) CVMX_MIO_UARTX_RBR(0);
- p->mapbase = CVMX_MIO_UARTX_RBR(0) & ((1ull << 49) - 1);
- p->irq = OCTEON_IRQ_UART0;
- p++;
- }
+ port.serial_in = octeon_serial_in;
+ port.serial_out = octeon_serial_out;
+ port.irq = irq;
- if (enable_uart1) {
- /* Add a ttyS device for hardware uart 1 */
- octeon_uart_set_common(p);
- p->membase = (void *) CVMX_MIO_UARTX_RBR(1);
- p->mapbase = CVMX_MIO_UARTX_RBR(1) & ((1ull << 49) - 1);
- p->irq = OCTEON_IRQ_UART1;
- p++;
- }
- if (enable_uart2) {
- /* Add a ttyS device for hardware uart 2 */
- octeon_uart_set_common(p);
- p->membase = (void *) CVMX_MIO_UART2_RBR;
- p->mapbase = CVMX_MIO_UART2_RBR & ((1ull << 49) - 1);
- p->irq = OCTEON_IRQ_UART2;
- p++;
+ res_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (res_mem == NULL) {
+ dev_err(&pdev->dev, "found no memory resource\n");
+ return -ENXIO;
}
+ port.mapbase = res_mem->start;
+ port.membase = ioremap(res_mem->start, resource_size(res_mem));
- BUG_ON(p > &octeon_uart8250_data[OCTEON_MAX_UARTS]);
+ res = serial8250_register_port(&port);
- return platform_device_register(&octeon_uart8250_device);
+ return res >= 0 ? 0 : res;
}
-device_initcall(octeon_serial_init);
+static struct of_device_id octeon_serial_match[] = {
+ {
+ .compatible = "cavium,octeon-3860-uart",
+ },
+ {},
+};
+MODULE_DEVICE_TABLE(of, octeon_serial_match);
+
+static struct platform_driver octeon_serial_driver = {
+ .probe = octeon_serial_probe,
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "octeon_serial",
+ .of_match_table = octeon_serial_match,
+ },
+};
+
+static int __init octeon_serial_init(void)
+{
+ return platform_driver_register(&octeon_serial_driver);
+}
+late_initcall(octeon_serial_init);
--
1.7.2.3
^ permalink raw reply related [flat|nested] 12+ messages in thread