From: Ramneek Mehresh ramneek.mehresh@freescale.com
Modify support for USB mode fixup: * Add support for fetching USB mode and phy type via hwconfig * Add common support for USB mode and phy type device tree fix-up for all USB controllers mentioned in hwconfig string
Signed-off-by: Ramneek Mehresh ramneek.mehresh@freescale.com Signed-off-by: Kumar Gala galak@kernel.crashing.org --- v2: * minor bug fix in fdt_fixup_dr_usb logic: mode_idx should be set to 'j'. v3: * Same issues as v2, but for phy_idx
arch/powerpc/cpu/mpc8xxx/fdt.c | 81 +++++++++++++++++++++++++++++++++------- 1 files changed, 67 insertions(+), 14 deletions(-)
diff --git a/arch/powerpc/cpu/mpc8xxx/fdt.c b/arch/powerpc/cpu/mpc8xxx/fdt.c index 0c166fd..0edd214 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_enet.h> #include <asm/fsl_serdes.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) @@ -84,25 +88,22 @@ 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)); + printf("WARNING: could not find compatible" + "node %s: %s.\n", compat, + fdt_strerror(node_offset)); return; }
@@ -114,14 +115,66 @@ 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 str[5]; + char usb1_defined = 0; + 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) || (phy_idx >= 0)) { + fdt_fixup_usb_mode_phy_type(blob, + modes[mode_idx], phys[phy_idx]); + if (!strcmp(str, "usb1")) + usb1_defined = 1; + } else { + 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 */
/*