diff options
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/host/ehci-fsl.c | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c index 8f55464..54efe5e 100644 --- a/drivers/usb/host/ehci-fsl.c +++ b/drivers/usb/host/ehci-fsl.c @@ -15,9 +15,14 @@ #include <usb/ehci-fsl.h> #include <hwconfig.h> #include <fsl_usb.h> +#include <fdt_support.h> #include "ehci.h" +#ifndef CONFIG_USB_MAX_CONTROLLER_COUNT +#define CONFIG_USB_MAX_CONTROLLER_COUNT 1 +#endif + static void set_txfifothresh(struct usb_ehci *, u32); /* Check USB PHY clock valid */ @@ -158,3 +163,111 @@ static void set_txfifothresh(struct usb_ehci *ehci, u32 txfifo_thresh) cmd |= TXFIFO_THRESH(txfifo_thresh); ehci_writel(&ehci->txfilltuning, cmd); } + +#if defined(CONFIG_HAS_FSL_DR_USB) || defined(CONFIG_HAS_FSL_MPH_USB) +static int fdt_fixup_usb_mode_phy_type(void *blob, const char *mode, + const char *phy_type, int start_offset) +{ + const char *compat_dr = "fsl-usb2-dr"; + const char *compat_mph = "fsl-usb2-mph"; + const char *prop_mode = "dr_mode"; + const char *prop_type = "phy_type"; + const char *node_type = NULL; + int node_offset; + int err; + + node_offset = fdt_node_offset_by_compatible(blob, + start_offset, compat_mph); + if (node_offset < 0) { + node_offset = fdt_node_offset_by_compatible(blob, + start_offset, + compat_dr); + if (node_offset < 0) { + printf("WARNING: could not find compatible node: %s", + fdt_strerror(node_offset)); + return -1; + } + node_type = compat_dr; + } else { + node_type = compat_mph; + } + + if (mode) { + err = fdt_setprop(blob, node_offset, prop_mode, mode, + strlen(mode) + 1); + if (err < 0) + printf("WARNING: could not set %s for %s: %s.\n", + prop_mode, node_type, fdt_strerror(err)); + } + + 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, node_type, fdt_strerror(err)); + } + + return node_offset; +} + +void fdt_fixup_dr_usb(void *blob, bd_t *bd) +{ + static const char * const modes[] = { "host", "peripheral", "otg" }; + static const char * const phys[] = { "ulpi", "utmi" }; + int usb_mode_off = -1; + int usb_phy_off = -1; + char str[5]; + int i, j; + + for (i = 1; i <= CONFIG_USB_MAX_CONTROLLER_COUNT; i++) { + const char *dr_mode_type = NULL; + const char *dr_phy_type = NULL; + int mode_idx = -1, phy_idx = -1; + + snprintf(str, 5, "%s%d", "usb", i); + if (hwconfig(str)) { + for (j = 0; j < ARRAY_SIZE(modes); j++) { + if (hwconfig_subarg_cmp(str, "dr_mode", + modes[j])) { + mode_idx = j; + break; + } + } + + for (j = 0; j < ARRAY_SIZE(phys); j++) { + if (hwconfig_subarg_cmp(str, "phy_type", + phys[j])) { + phy_idx = j; + break; + } + } + + if (mode_idx < 0 && phy_idx < 0) { + printf("WARNING: invalid phy or mode\n"); + return; + } + + if (mode_idx > -1) + dr_mode_type = modes[mode_idx]; + + if (phy_idx > -1) + dr_phy_type = phys[phy_idx]; + } + + usb_mode_off = fdt_fixup_usb_mode_phy_type(blob, + dr_mode_type, NULL, + usb_mode_off); + + if (usb_mode_off < 0) + return; + + usb_phy_off = fdt_fixup_usb_mode_phy_type(blob, + NULL, dr_phy_type, + usb_phy_off); + + if (usb_phy_off < 0) + return; + } +} +#endif |