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https://github.com/AsahiLinux/u-boot
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a0ba216ed4
If multiple entries are present in the memory-region property, this new memory-region-names property can be used to specify names for each of them so that they can be more easily distinguished. Signed-off-by: Thierry Reding <treding@nvidia.com> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
180 lines
3.8 KiB
C
180 lines
3.8 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) 2010-2016, NVIDIA CORPORATION.
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*/
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#include <common.h>
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#include <fdtdec.h>
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#include <stdlib.h>
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#include <asm/arch-tegra/cboot.h>
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#include <asm/arch-tegra/gpu.h>
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/*
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* This function is called right before the kernel is booted. "blob" is the
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* device tree that will be passed to the kernel.
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*/
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int ft_system_setup(void *blob, struct bd_info *bd)
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{
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const char *gpu_compats[] = {
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#if defined(CONFIG_TEGRA124)
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"nvidia,gk20a",
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#endif
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#if defined(CONFIG_TEGRA210)
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"nvidia,gm20b",
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#endif
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};
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int i, ret;
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/* Enable GPU node if GPU setup has been performed */
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for (i = 0; i < ARRAY_SIZE(gpu_compats); i++) {
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ret = tegra_gpu_enable_node(blob, gpu_compats[i]);
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if (ret)
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return ret;
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}
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return 0;
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}
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#if defined(CONFIG_ARM64)
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void ft_mac_address_setup(void *fdt)
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{
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const void *cboot_fdt = (const void *)cboot_boot_x0;
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uint8_t mac[ETH_ALEN], local_mac[ETH_ALEN];
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const char *path;
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int offset, err;
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err = cboot_get_ethaddr(cboot_fdt, local_mac);
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if (err < 0)
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memset(local_mac, 0, ETH_ALEN);
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path = fdt_get_alias(fdt, "ethernet");
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if (!path)
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return;
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debug("ethernet alias found: %s\n", path);
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offset = fdt_path_offset(fdt, path);
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if (offset < 0) {
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printf("ethernet alias points to absent node %s\n", path);
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return;
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}
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if (is_valid_ethaddr(local_mac)) {
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err = fdt_setprop(fdt, offset, "local-mac-address", local_mac,
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ETH_ALEN);
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if (!err)
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debug("Local MAC address set: %pM\n", local_mac);
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}
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if (eth_env_get_enetaddr("ethaddr", mac)) {
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if (memcmp(local_mac, mac, ETH_ALEN) != 0) {
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err = fdt_setprop(fdt, offset, "mac-address", mac,
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ETH_ALEN);
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if (!err)
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debug("MAC address set: %pM\n", mac);
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}
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}
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}
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static int ft_copy_carveout(void *dst, const void *src, const char *node)
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{
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const char *names = "memory-region-names";
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struct fdt_memory carveout;
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unsigned int index = 0;
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int err, offset, len;
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const void *prop;
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while (true) {
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const char **compatibles = NULL;
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unsigned int num_compatibles;
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unsigned long flags;
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char *copy = NULL;
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const char *name;
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err = fdtdec_get_carveout(src, node, "memory-region", index,
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&carveout, &name, &compatibles,
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&num_compatibles, &flags);
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if (err < 0) {
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if (err != -FDT_ERR_NOTFOUND)
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printf("failed to get carveout for %s: %d\n",
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node, err);
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else
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break;
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return err;
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}
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if (name) {
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const char *ptr = strchr(name, '@');
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if (ptr) {
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copy = strndup(name, ptr - name);
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name = copy;
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}
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} else {
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name = "carveout";
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}
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err = fdtdec_set_carveout(dst, node, "memory-region", index,
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&carveout, name, compatibles,
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num_compatibles, flags);
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if (err < 0) {
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printf("failed to set carveout for %s: %d\n", node,
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err);
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return err;
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}
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if (copy)
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free(copy);
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index++;
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}
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offset = fdt_path_offset(src, node);
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if (offset < 0) {
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debug("failed to find source offset for %s: %s\n", node,
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fdt_strerror(err));
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return err;
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}
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prop = fdt_getprop(src, offset, names, &len);
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if (prop) {
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offset = fdt_path_offset(dst, node);
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if (offset < 0) {
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debug("failed to find destination offset for %s: %s\n",
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node, fdt_strerror(err));
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return err;
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}
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err = fdt_setprop(dst, offset, "memory-region-names", prop,
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len);
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if (err < 0) {
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debug("failed to copy \"%s\" property: %s\n", names,
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fdt_strerror(err));
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return err;
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}
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}
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return 0;
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}
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void ft_carveout_setup(void *fdt, const char * const *nodes, unsigned int count)
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{
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const void *cboot_fdt = (const void *)cboot_boot_x0;
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unsigned int i;
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int err;
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for (i = 0; i < count; i++) {
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printf("copying carveout for %s...\n", nodes[i]);
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err = ft_copy_carveout(fdt, cboot_fdt, nodes[i]);
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if (err < 0) {
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if (err != -FDT_ERR_NOTFOUND)
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printf("failed to copy carveout for %s: %d\n",
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nodes[i], err);
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continue;
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}
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}
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}
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#endif
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