diff options
Diffstat (limited to 'drivers/usb/common')
| -rw-r--r-- | drivers/usb/common/Makefile | 6 | ||||
| -rw-r--r-- | drivers/usb/common/fsl-dt-fixup.c | 213 |
2 files changed, 219 insertions, 0 deletions
diff --git a/drivers/usb/common/Makefile b/drivers/usb/common/Makefile new file mode 100644 index 0000000000..a38ee4a433 --- /dev/null +++ b/drivers/usb/common/Makefile @@ -0,0 +1,6 @@ +# (C) Copyright 2016 Freescale Semiconductor, Inc. +# +# SPDX-License-Identifier: GPL-2.0+ +# + +obj-$(CONFIG_USB_EHCI_FSL) += fsl-dt-fixup.o diff --git a/drivers/usb/common/fsl-dt-fixup.c b/drivers/usb/common/fsl-dt-fixup.c new file mode 100644 index 0000000000..92adb46da3 --- /dev/null +++ b/drivers/usb/common/fsl-dt-fixup.c @@ -0,0 +1,213 @@ +/* + * (C) Copyright 2009, 2011 Freescale Semiconductor, Inc. + * + * (C) Copyright 2008, Excito Elektronik i Sk=E5ne AB + * + * Author: Tor Krill tor@excito.com + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <usb.h> +#include <asm/io.h> +#include <hwconfig.h> +#include <fsl_usb.h> +#include <fdt_support.h> + +#ifndef CONFIG_USB_MAX_CONTROLLER_COUNT +#define CONFIG_USB_MAX_CONTROLLER_COUNT 1 +#endif + +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; +} + +static const char *fdt_usb_get_node_type(void *blob, int start_offset, + int *node_offset) +{ + const char *compat_dr = "fsl-usb2-dr"; + const char *compat_mph = "fsl-usb2-mph"; + const char *node_type = NULL; + + *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("ERROR: could not find compatible node: %s\n", + fdt_strerror(*node_offset)); + } else { + node_type = compat_dr; + } + } else { + node_type = compat_mph; + } + + return node_type; +} + +static int fdt_fixup_usb_erratum(void *blob, const char *prop_erratum, + int start_offset) +{ + int node_offset, err; + const char *node_type = NULL; + + node_type = fdt_usb_get_node_type(blob, start_offset, &node_offset); + if (!node_type) + return -1; + + err = fdt_setprop(blob, node_offset, prop_erratum, NULL, 0); + if (err < 0) { + printf("ERROR: could not set %s for %s: %s.\n", + prop_erratum, 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", "utmi_dual" }; + int usb_erratum_a006261_off = -1; + int usb_erratum_a007075_off = -1; + int usb_erratum_a007792_off = -1; + int usb_erratum_a005697_off = -1; + 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]; + } + + if (has_dual_phy()) + dr_phy_type = phys[2]; + + 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; + + if (has_erratum_a006261()) { + usb_erratum_a006261_off = fdt_fixup_usb_erratum + (blob, + "fsl,usb-erratum-a006261", + usb_erratum_a006261_off); + if (usb_erratum_a006261_off < 0) + return; + } + + if (has_erratum_a007075()) { + usb_erratum_a007075_off = fdt_fixup_usb_erratum + (blob, + "fsl,usb-erratum-a007075", + usb_erratum_a007075_off); + if (usb_erratum_a007075_off < 0) + return; + } + + if (has_erratum_a007792()) { + usb_erratum_a007792_off = fdt_fixup_usb_erratum + (blob, + "fsl,usb-erratum-a007792", + usb_erratum_a007792_off); + if (usb_erratum_a007792_off < 0) + return; + } + if (has_erratum_a005697()) { + usb_erratum_a005697_off = fdt_fixup_usb_erratum + (blob, + "fsl,usb-erratum-a005697", + usb_erratum_a005697_off); + if (usb_erratum_a005697_off < 0) + return; + } + } +} |