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yaml
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r: 18332
b: refs/heads/master
c: eed3200
h: refs/heads/master
v: v3
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Kumar Gala authored and Paul Mackerras committed Jan 14, 2006
1 parent 3b516cd commit 01eb35b
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2 changes: 1 addition & 1 deletion [refs]
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---
refs/heads/master: b8e383d592daaa35c944a9083ee92c995dce66ca
refs/heads/master: eed320010872a11f5255b3d076e5b4f142af553d
1 change: 1 addition & 0 deletions trunk/arch/powerpc/sysdev/Makefile
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Expand Up @@ -7,3 +7,4 @@ obj-$(CONFIG_40x) += dcr.o
obj-$(CONFIG_U3_DART) += dart_iommu.o
obj-$(CONFIG_MMIO_NVRAM) += mmio_nvram.o
obj-$(CONFIG_PPC_83xx) += ipic.o
obj-$(CONFIG_FSL_SOC) += fsl_soc.o
317 changes: 317 additions & 0 deletions trunk/arch/powerpc/sysdev/fsl_soc.c
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/*
* FSL SoC setup code
*
* Maintained by Kumar Gala (see MAINTAINERS for contact information)
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/

#include <linux/config.h>
#include <linux/stddef.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/major.h>
#include <linux/delay.h>
#include <linux/irq.h>
#include <linux/module.h>
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/fsl_devices.h>

#include <asm/system.h>
#include <asm/atomic.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/prom.h>
#include <sysdev/fsl_soc.h>
#include <mm/mmu_decl.h>

static phys_addr_t immrbase = -1;

phys_addr_t get_immrbase(void)
{
struct device_node *soc;

if (immrbase != -1)
return immrbase;

soc = of_find_node_by_type(NULL, "soc");
if (soc != 0) {
unsigned int size;
void *prop = get_property(soc, "reg", &size);
immrbase = of_translate_address(soc, prop);
of_node_put(soc);
};

return immrbase;
}
EXPORT_SYMBOL(get_immrbase);

static const char * gfar_tx_intr = "tx";
static const char * gfar_rx_intr = "rx";
static const char * gfar_err_intr = "error";

static int __init gfar_of_init(void)
{
struct device_node *np;
unsigned int i;
struct platform_device *mdio_dev, *gfar_dev;
struct resource res;
int ret;

for (np = NULL, i = 0; (np = of_find_compatible_node(np, "mdio", "gianfar")) != NULL; i++) {
int k;
struct device_node *child = NULL;
struct gianfar_mdio_data mdio_data;

memset(&res, 0, sizeof(res));
memset(&mdio_data, 0, sizeof(mdio_data));

ret = of_address_to_resource(np, 0, &res);
if (ret)
goto mdio_err;

mdio_dev = platform_device_register_simple("fsl-gianfar_mdio", res.start, &res, 1);
if (IS_ERR(mdio_dev)) {
ret = PTR_ERR(mdio_dev);
goto mdio_err;
}

for (k = 0; k < 32; k++)
mdio_data.irq[k] = -1;

while ((child = of_get_next_child(np, child)) != NULL) {
if (child->n_intrs) {
u32 *id = (u32 *) get_property(child, "reg", NULL);
mdio_data.irq[*id] = child->intrs[0].line;
}
}

ret = platform_device_add_data(mdio_dev, &mdio_data, sizeof(struct gianfar_mdio_data));
if (ret)
goto mdio_unreg;
}

for (np = NULL, i = 0; (np = of_find_compatible_node(np, "network", "gianfar")) != NULL; i++) {
struct resource r[4];
struct device_node *phy, *mdio;
struct gianfar_platform_data gfar_data;
unsigned int *id;
char *model;
void *mac_addr;
phandle *ph;

memset(r, 0, sizeof(r));
memset(&gfar_data, 0, sizeof(gfar_data));

ret = of_address_to_resource(np, 0, &r[0]);
if (ret)
goto gfar_err;

r[1].start = np->intrs[0].line;
r[1].end = np->intrs[0].line;
r[1].flags = IORESOURCE_IRQ;

model = get_property(np, "model", NULL);

/* If we aren't the FEC we have multiple interrupts */
if (model && strcasecmp(model, "FEC")) {
r[1].name = gfar_tx_intr;

r[2].name = gfar_rx_intr;
r[2].start = np->intrs[1].line;
r[2].end = np->intrs[1].line;
r[2].flags = IORESOURCE_IRQ;

r[3].name = gfar_err_intr;
r[3].start = np->intrs[2].line;
r[3].end = np->intrs[2].line;
r[3].flags = IORESOURCE_IRQ;
}

gfar_dev = platform_device_register_simple("fsl-gianfar", i, &r[0], np->n_intrs + 1);

if (IS_ERR(gfar_dev)) {
ret = PTR_ERR(gfar_dev);
goto gfar_err;
}

mac_addr = get_property(np, "address", NULL);
memcpy(gfar_data.mac_addr, mac_addr, 6);

if (model && !strcasecmp(model, "TSEC"))
gfar_data.device_flags =
FSL_GIANFAR_DEV_HAS_GIGABIT |
FSL_GIANFAR_DEV_HAS_COALESCE |
FSL_GIANFAR_DEV_HAS_RMON |
FSL_GIANFAR_DEV_HAS_MULTI_INTR;
if (model && !strcasecmp(model, "eTSEC"))
gfar_data.device_flags =
FSL_GIANFAR_DEV_HAS_GIGABIT |
FSL_GIANFAR_DEV_HAS_COALESCE |
FSL_GIANFAR_DEV_HAS_RMON |
FSL_GIANFAR_DEV_HAS_MULTI_INTR |
FSL_GIANFAR_DEV_HAS_CSUM |
FSL_GIANFAR_DEV_HAS_VLAN |
FSL_GIANFAR_DEV_HAS_EXTENDED_HASH;

ph = (phandle *) get_property(np, "phy-handle", NULL);
phy = of_find_node_by_phandle(*ph);

if (phy == NULL) {
ret = -ENODEV;
goto gfar_unreg;
}

mdio = of_get_parent(phy);

id = (u32 *) get_property(phy, "reg", NULL);
ret = of_address_to_resource(mdio, 0, &res);
if (ret) {
of_node_put(phy);
of_node_put(mdio);
goto gfar_unreg;
}

gfar_data.phy_id = *id;
gfar_data.bus_id = res.start;

of_node_put(phy);
of_node_put(mdio);

ret = platform_device_add_data(gfar_dev, &gfar_data, sizeof(struct gianfar_platform_data));
if (ret)
goto gfar_unreg;
}

return 0;

mdio_unreg:
platform_device_unregister(mdio_dev);
mdio_err:
return ret;

gfar_unreg:
platform_device_unregister(gfar_dev);
gfar_err:
return ret;
}
arch_initcall(gfar_of_init);

static int __init fsl_i2c_of_init(void)
{
struct device_node *np;
unsigned int i;
struct platform_device *i2c_dev;
int ret;

for (np = NULL, i = 0; (np = of_find_compatible_node(np, "i2c", "fsl-i2c")) != NULL; i++) {
struct resource r[2];
struct fsl_i2c_platform_data i2c_data;
unsigned char * flags = NULL;

memset(&r, 0, sizeof(r));
memset(&i2c_data, 0, sizeof(i2c_data));

ret = of_address_to_resource(np, 0, &r[0]);
if (ret)
goto i2c_err;

r[1].start = np->intrs[0].line;
r[1].end = np->intrs[0].line;
r[1].flags = IORESOURCE_IRQ;

i2c_dev = platform_device_register_simple("fsl-i2c", i, r, 2);
if (IS_ERR(i2c_dev)) {
ret = PTR_ERR(i2c_dev);
goto i2c_err;
}

i2c_data.device_flags = 0;
flags = get_property(np, "dfsrr", NULL);
if (flags)
i2c_data.device_flags |= FSL_I2C_DEV_SEPARATE_DFSRR;

flags = get_property(np, "fsl5200-clocking", NULL);
if (flags)
i2c_data.device_flags |= FSL_I2C_DEV_CLOCK_5200;

ret = platform_device_add_data(i2c_dev, &i2c_data, sizeof(struct fsl_i2c_platform_data));
if (ret)
goto i2c_unreg;
}

return 0;

i2c_unreg:
platform_device_unregister(i2c_dev);
i2c_err:
return ret;
}
arch_initcall(fsl_i2c_of_init);

#ifdef CONFIG_PPC_83xx
static int __init mpc83xx_wdt_init(void)
{
struct resource r;
struct device_node *soc, *np;
struct platform_device *dev;
unsigned int *freq;
int ret;

np = of_find_compatible_node(NULL, "watchdog", "mpc83xx_wdt");

if (!np) {
ret = -ENODEV;
goto mpc83xx_wdt_nodev;
}

soc = of_find_node_by_type(NULL, "soc");

if (!soc) {
ret = -ENODEV;
goto mpc83xx_wdt_nosoc;
}

freq = (unsigned int *)get_property(soc, "bus-frequency", NULL);
if (!freq) {
ret = -ENODEV;
goto mpc83xx_wdt_err;
}

memset(&r, 0, sizeof(r));

ret = of_address_to_resource(np, 0, &r);
if (ret)
goto mpc83xx_wdt_err;

dev = platform_device_register_simple("mpc83xx_wdt", 0, &r, 1);
if (IS_ERR(dev)) {
ret = PTR_ERR(dev);
goto mpc83xx_wdt_err;
}

ret = platform_device_add_data(dev, freq, sizeof(int));
if (ret)
goto mpc83xx_wdt_unreg;

of_node_put(soc);
of_node_put(np);

return 0;

mpc83xx_wdt_unreg:
platform_device_unregister(dev);
mpc83xx_wdt_err:
of_node_put(soc);
mpc83xx_wdt_nosoc:
of_node_put(np);
mpc83xx_wdt_nodev:
return ret;
}
arch_initcall(mpc83xx_wdt_init);
#endif
8 changes: 8 additions & 0 deletions trunk/arch/powerpc/sysdev/fsl_soc.h
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#ifndef __PPC_FSL_SOC_H
#define __PPC_FSL_SOC_H
#ifdef __KERNEL__

extern phys_addr_t get_immrbase(void);

#endif
#endif

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