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https://github.com/brain-hackers/u-boot-brain
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![Tom Rini](/assets/img/avatar_default.png)
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
229 lines
5.3 KiB
C
229 lines
5.3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2009, 2011 Freescale Semiconductor, Inc.
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*
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* (C) Copyright 2008, Excito Elektronik i Sk=E5ne AB
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*
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* Author: Tor Krill tor@excito.com
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*/
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#include <common.h>
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#include <usb.h>
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#include <asm/io.h>
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#include <hwconfig.h>
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#include <fsl_errata.h>
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#include <fsl_usb.h>
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#include <fdt_support.h>
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#ifndef CONFIG_USB_MAX_CONTROLLER_COUNT
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#define CONFIG_USB_MAX_CONTROLLER_COUNT 1
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#endif
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/* USB Controllers */
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#define FSL_USB2_MPH "fsl-usb2-mph"
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#define FSL_USB2_DR "fsl-usb2-dr"
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#define CHIPIDEA_USB2 "chipidea,usb2"
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#define SNPS_DWC3 "snps,dwc3"
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static const char * const compat_usb_fsl[] = {
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FSL_USB2_MPH,
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FSL_USB2_DR,
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SNPS_DWC3,
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NULL
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};
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static int fdt_usb_get_node_type(void *blob, int start_offset,
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int *node_offset, const char **node_type)
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{
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int i;
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int ret = -ENOENT;
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for (i = 0; compat_usb_fsl[i]; i++) {
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*node_offset = fdt_node_offset_by_compatible
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(blob, start_offset,
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compat_usb_fsl[i]);
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if (*node_offset >= 0) {
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*node_type = compat_usb_fsl[i];
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ret = 0;
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break;
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}
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}
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return ret;
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}
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static int fdt_fixup_usb_mode_phy_type(void *blob, const char *mode,
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const char *phy_type, int start_offset)
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{
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const char *prop_mode = "dr_mode";
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const char *prop_type = "phy_type";
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const char *node_type = NULL;
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int node_offset;
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int err;
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err = fdt_usb_get_node_type(blob, start_offset,
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&node_offset, &node_type);
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if (err < 0)
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return err;
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if (mode) {
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err = fdt_setprop(blob, node_offset, prop_mode, mode,
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strlen(mode) + 1);
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if (err < 0)
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printf("WARNING: could not set %s for %s: %s.\n",
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prop_mode, node_type, fdt_strerror(err));
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}
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if (phy_type) {
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err = fdt_setprop(blob, node_offset, prop_type, phy_type,
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strlen(phy_type) + 1);
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if (err < 0)
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printf("WARNING: could not set %s for %s: %s.\n",
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prop_type, node_type, fdt_strerror(err));
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}
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return node_offset;
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}
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static int fsl_fdt_fixup_usb_erratum(void *blob, const char *prop_erratum,
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const char *controller_type,
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int start_offset)
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{
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int node_offset, err;
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const char *node_type = NULL;
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const char *node_name = NULL;
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err = fdt_usb_get_node_type(blob, start_offset,
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&node_offset, &node_type);
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if (err < 0)
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return err;
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if (!strcmp(node_type, FSL_USB2_MPH) || !strcmp(node_type, FSL_USB2_DR))
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node_name = CHIPIDEA_USB2;
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else
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node_name = node_type;
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if (strcmp(node_name, controller_type))
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return err;
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err = fdt_setprop(blob, node_offset, prop_erratum, NULL, 0);
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if (err < 0) {
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printf("ERROR: could not set %s for %s: %s.\n",
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prop_erratum, node_type, fdt_strerror(err));
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}
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return node_offset;
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}
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static int fsl_fdt_fixup_erratum(int *usb_erratum_off, void *blob,
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const char *controller_type, char *str,
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bool (*has_erratum)(void))
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{
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char buf[32] = {0};
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snprintf(buf, sizeof(buf), "fsl,usb-erratum-%s", str);
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if (!has_erratum())
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return -EINVAL;
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*usb_erratum_off = fsl_fdt_fixup_usb_erratum(blob, buf, controller_type,
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*usb_erratum_off);
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if (*usb_erratum_off < 0)
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return -ENOSPC;
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debug("Adding USB erratum %s\n", str);
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return 0;
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}
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void fsl_fdt_fixup_dr_usb(void *blob, bd_t *bd)
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{
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static const char * const modes[] = { "host", "peripheral", "otg" };
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static const char * const phys[] = { "ulpi", "utmi", "utmi_dual" };
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int usb_erratum_a006261_off = -1;
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int usb_erratum_a007075_off = -1;
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int usb_erratum_a007792_off = -1;
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int usb_erratum_a005697_off = -1;
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int usb_erratum_a008751_off = -1;
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int usb_mode_off = -1;
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int usb_phy_off = -1;
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char str[5];
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int i, j;
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int ret;
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for (i = 1; i <= CONFIG_USB_MAX_CONTROLLER_COUNT; i++) {
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const char *dr_mode_type = NULL;
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const char *dr_phy_type = NULL;
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int mode_idx = -1, phy_idx = -1;
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snprintf(str, 5, "%s%d", "usb", i);
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if (hwconfig(str)) {
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for (j = 0; j < ARRAY_SIZE(modes); j++) {
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if (hwconfig_subarg_cmp(str, "dr_mode",
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modes[j])) {
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mode_idx = j;
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break;
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}
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}
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for (j = 0; j < ARRAY_SIZE(phys); j++) {
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if (hwconfig_subarg_cmp(str, "phy_type",
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phys[j])) {
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phy_idx = j;
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break;
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}
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}
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if (mode_idx < 0 && phy_idx < 0) {
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printf("WARNING: invalid phy or mode\n");
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return;
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}
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if (mode_idx > -1)
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dr_mode_type = modes[mode_idx];
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if (phy_idx > -1)
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dr_phy_type = phys[phy_idx];
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}
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if (has_dual_phy())
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dr_phy_type = phys[2];
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usb_mode_off = fdt_fixup_usb_mode_phy_type(blob,
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dr_mode_type, NULL,
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usb_mode_off);
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if (usb_mode_off < 0)
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return;
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usb_phy_off = fdt_fixup_usb_mode_phy_type(blob,
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NULL, dr_phy_type,
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usb_phy_off);
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if (usb_phy_off < 0)
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return;
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ret = fsl_fdt_fixup_erratum(&usb_erratum_a006261_off, blob,
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CHIPIDEA_USB2, "a006261",
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has_erratum_a006261);
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if (ret == -ENOSPC)
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return;
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ret = fsl_fdt_fixup_erratum(&usb_erratum_a007075_off, blob,
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CHIPIDEA_USB2, "a007075",
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has_erratum_a007075);
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if (ret == -ENOSPC)
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return;
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ret = fsl_fdt_fixup_erratum(&usb_erratum_a007792_off, blob,
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CHIPIDEA_USB2, "a007792",
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has_erratum_a007792);
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if (ret == -ENOSPC)
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return;
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ret = fsl_fdt_fixup_erratum(&usb_erratum_a005697_off, blob,
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CHIPIDEA_USB2, "a005697",
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has_erratum_a005697);
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if (ret == -ENOSPC)
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return;
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ret = fsl_fdt_fixup_erratum(&usb_erratum_a008751_off, blob,
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SNPS_DWC3, "a008751",
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has_erratum_a008751);
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if (ret == -ENOSPC)
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return;
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}
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}
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