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authorRamneek Mehresh <ramneek.mehresh@freescale.com>2011-06-08 17:14:20 +0530
committerKumar Gala <galak@kernel.crashing.org>2011-07-11 13:24:20 -0500
commit72f4980b406f1c15751b5944223a045f58fe025f (patch)
treefa8fc1d1061e8d2fffae70d05566deb0cc6ab58c
parent3f7f6b8592ac9cd33117913310b9e6dbcc86acac (diff)
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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>
-rw-r--r--arch/powerpc/cpu/mpc8xxx/fdt.c77
1 files changed, 65 insertions, 12 deletions
diff --git a/arch/powerpc/cpu/mpc8xxx/fdt.c b/arch/powerpc/cpu/mpc8xxx/fdt.c
index 520cb90..d9e3e7e 100644
--- a/arch/powerpc/cpu/mpc8xxx/fdt.c
+++ b/arch/powerpc/cpu/mpc8xxx/fdt.c
@@ -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 */