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[PATCH] powerpc: Add platform support for MPC834x USB controllers

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Setup the platform devices needed by the Freescale EHCI USB
host controllers based on a flat device tree

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Kumar Gala 2006-02-02 12:31:00 -06:00 committed by Paul Mackerras
parent 158daa4cc8
commit 4b10cfd40e
1 changed files with 140 additions and 0 deletions
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140
arch/powerpc/sysdev/fsl_soc.c
View file

@ -351,3 +351,143 @@ static int __init mpc83xx_wdt_init(void)
arch_initcall(mpc83xx_wdt_init);
#endif
static enum fsl_usb2_phy_modes determine_usb_phy(char * phy_type)
{
if (!phy_type)
return FSL_USB2_PHY_NONE;
if (!strcasecmp(phy_type, "ulpi"))
return FSL_USB2_PHY_ULPI;
if (!strcasecmp(phy_type, "utmi"))
return FSL_USB2_PHY_UTMI;
if (!strcasecmp(phy_type, "utmi_wide"))
return FSL_USB2_PHY_UTMI_WIDE;
if (!strcasecmp(phy_type, "serial"))
return FSL_USB2_PHY_SERIAL;
return FSL_USB2_PHY_NONE;
}
static int __init fsl_usb_of_init(void)
{
struct device_node *np;
unsigned int i;
struct platform_device *usb_dev;
int ret;
for (np = NULL, i = 0;
(np = of_find_compatible_node(np, "usb", "fsl-usb2-mph")) != NULL;
i++) {
struct resource r[2];
struct fsl_usb2_platform_data usb_data;
unsigned char *prop = NULL;
memset(&r, 0, sizeof(r));
memset(&usb_data, 0, sizeof(usb_data));
ret = of_address_to_resource(np, 0, &r[0]);
if (ret)
goto err;
r[1].start = np->intrs[0].line;
r[1].end = np->intrs[0].line;
r[1].flags = IORESOURCE_IRQ;
usb_dev =
platform_device_register_simple("fsl-usb2-mph", i, r, 2);
if (IS_ERR(usb_dev)) {
ret = PTR_ERR(usb_dev);
goto err;
}
usb_dev->dev.coherent_dma_mask = 0xffffffffUL;
usb_dev->dev.dma_mask = &usb_dev->dev.coherent_dma_mask;
usb_data.operating_mode = FSL_USB2_MPH_HOST;
prop = get_property(np, "port0", NULL);
if (prop)
usb_data.port_enables |= FSL_USB2_PORT0_ENABLED;
prop = get_property(np, "port1", NULL);
if (prop)
usb_data.port_enables |= FSL_USB2_PORT1_ENABLED;
prop = get_property(np, "phy_type", NULL);
usb_data.phy_mode = determine_usb_phy(prop);
ret =
platform_device_add_data(usb_dev, &usb_data,
sizeof(struct
fsl_usb2_platform_data));
if (ret)
goto unreg;
}
return 0;
unreg:
platform_device_unregister(usb_dev);
err:
return ret;
}
arch_initcall(fsl_usb_of_init);
static int __init fsl_usb_dr_of_init(void)
{
struct device_node *np;
unsigned int i;
struct platform_device *usb_dev;
int ret;
for (np = NULL, i = 0;
(np = of_find_compatible_node(np, "usb", "fsl-usb2-dr")) != NULL;
i++) {
struct resource r[2];
struct fsl_usb2_platform_data usb_data;
unsigned char *prop = NULL;
memset(&r, 0, sizeof(r));
memset(&usb_data, 0, sizeof(usb_data));
ret = of_address_to_resource(np, 0, &r[0]);
if (ret)
goto err;
r[1].start = np->intrs[0].line;
r[1].end = np->intrs[0].line;
r[1].flags = IORESOURCE_IRQ;
usb_dev =
platform_device_register_simple("fsl-usb2-dr", i, r, 2);
if (IS_ERR(usb_dev)) {
ret = PTR_ERR(usb_dev);
goto err;
}
usb_dev->dev.coherent_dma_mask = 0xffffffffUL;
usb_dev->dev.dma_mask = &usb_dev->dev.coherent_dma_mask;
usb_data.operating_mode = FSL_USB2_DR_HOST;
prop = get_property(np, "phy_type", NULL);
usb_data.phy_mode = determine_usb_phy(prop);
ret =
platform_device_add_data(usb_dev, &usb_data,
sizeof(struct
fsl_usb2_platform_data));
if (ret)
goto unreg;
}
return 0;
unreg:
platform_device_unregister(usb_dev);
err:
return ret;
}
arch_initcall(fsl_usb_dr_of_init);