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powerpc/8xxx: Update USB mode device tree fixup 

Modify support for USB mode fixup:
        - Add common support for USB mode and phy type
          device tree fix-up for all USB controllers
          mentioned in hwconfig string
        - Fetch USB mode and phy type via hwconfig; if not
          defined in hwconfig, then fetch them from env

Signed-off-by: Ramneek Mehresh <ramneek.mehresh@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Ramneek Mehresh 2011-06-08 17:14:20 +05:30 committed by Kumar Gala
parent 3f7f6b8592
commit 72f4980b40
1 changed files with 65 additions and 12 deletions
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77
arch/powerpc/cpu/mpc8xxx/fdt.c
View File

@ -29,6 +29,10 @@
#include <asm/mp.h>
#include <asm/fsl_serdes.h>
#include <phy.h>
#include <hwconfig.h>
#ifdef CONFIG_HAS_FSL_DR_USB
#include <usb.h>
#endif
#if defined(CONFIG_MP) && (defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx))
static int ft_del_cpuhandle(void *blob, int cpuhandle)
@ -84,22 +88,18 @@ void ft_fixup_num_cores(void *blob) {
#endif /* defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) */
#ifdef CONFIG_HAS_FSL_DR_USB
void fdt_fixup_dr_usb(void *blob, bd_t *bd)
static void fdt_fixup_usb_mode_phy_type(void *blob, const char *mode,
const char *phy_type)
{
char *mode;
char *type;
const char *compat = "fsl-usb2-dr";
const char *prop_mode = "dr_mode";
const char *prop_type = "phy_type";
static int start_offset = -1;
int node_offset;
int err;
mode = getenv("usb_dr_mode");
type = getenv("usb_phy_type");
if (!mode && !type)
return;
node_offset = fdt_node_offset_by_compatible(blob, 0, compat);
node_offset = fdt_node_offset_by_compatible(blob,
start_offset, compat);
if (node_offset < 0) {
printf("WARNING: could not find compatible node %s: %s.\n",
compat, fdt_strerror(node_offset));
@ -114,13 +114,66 @@ void fdt_fixup_dr_usb(void *blob, bd_t *bd)
prop_mode, compat, fdt_strerror(err));
}
if (type) {
err = fdt_setprop(blob, node_offset, prop_type, type,
strlen(type) + 1);
if (phy_type) {
err = fdt_setprop(blob, node_offset, prop_type, phy_type,
strlen(phy_type) + 1);
if (err < 0)
printf("WARNING: could not set %s for %s: %s.\n",
prop_type, compat, fdt_strerror(err));
}
start_offset = node_offset;
}
void fdt_fixup_dr_usb(void *blob, bd_t *bd)
{
const char *modes[] = { "host", "peripheral", "otg" };
const char *phys[] = { "ulpi", "umti" };
const char *mode = NULL;
const char *phy_type = NULL;
char usb1_defined = 0;
char str[5];
int i, j;
for (i = 1; i <= USB_MAX_DEVICE; i++) {
int mode_idx = -1, phy_idx = -1;
sprintf(str, "%s%d", "usb", i);
if (hwconfig(str)) {
for (j = 0; j < sizeof(modes); j++) {
if (hwconfig_subarg_cmp(str, "dr_mode",
modes[j])) {
mode_idx = j;
break;
}
}
for (j = 0; j < sizeof(phys); j++) {
if (hwconfig_subarg_cmp(str, "phy_type",
phys[j])) {
phy_idx = j;
break;
}
}
if (mode_idx >= 0)
fdt_fixup_usb_mode_phy_type(blob,
modes[mode_idx], NULL);
if (phy_idx >= 0)
fdt_fixup_usb_mode_phy_type(blob,
NULL, phys[phy_idx]);
if (!strcmp(str, "usb1"))
usb1_defined = 1;
if (mode_idx < 0 && phy_idx < 0)
printf("WARNING: invalid phy or mode\n");
} else {
break;
}
}
if (!usb1_defined) {
mode = getenv("usb_dr_mode");
phy_type = getenv("usb_phy_type");
if (!mode && !phy_type)
return;
fdt_fixup_usb_mode_phy_type(blob, mode, phy_type);
}
}
#endif /* CONFIG_HAS_FSL_DR_USB */