mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-06 03:06:16 +09:00
83d290c56f
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>
129 lines
3.5 KiB
C
129 lines
3.5 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2016 Freescale Semiconductor, Inc.
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*/
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#include <asm/io.h>
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#include <fsl_qe.h> /* For struct qe_firmware */
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#ifdef CONFIG_SYS_DPAA_FMAN
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/**
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* fdt_fixup_fman_firmware -- insert the Fman firmware into the device tree
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*
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* The binding for an Fman firmware node is documented in
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* Documentation/powerpc/dts-bindings/fsl/dpaa/fman.txt. This node contains
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* the actual Fman firmware binary data. The operating system is expected to
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* be able to parse the binary data to determine any attributes it needs.
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*/
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void fdt_fixup_fman_firmware(void *blob)
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{
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int rc, fmnode, fwnode = -1;
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uint32_t phandle;
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struct qe_firmware *fmanfw;
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const struct qe_header *hdr;
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unsigned int length;
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uint32_t crc;
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const char *p;
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/* The first Fman we find will contain the actual firmware. */
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fmnode = fdt_node_offset_by_compatible(blob, -1, "fsl,fman");
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if (fmnode < 0)
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/* Exit silently if there are no Fman devices */
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return;
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/* If we already have a firmware node, then also exit silently. */
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if (fdt_node_offset_by_compatible(blob, -1, "fsl,fman-firmware") > 0)
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return;
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/* If the environment variable is not set, then exit silently */
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p = env_get("fman_ucode");
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if (!p)
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return;
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fmanfw = (struct qe_firmware *)simple_strtoul(p, NULL, 16);
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if (!fmanfw)
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return;
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hdr = &fmanfw->header;
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length = fdt32_to_cpu(hdr->length);
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/* Verify the firmware. */
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if ((hdr->magic[0] != 'Q') || (hdr->magic[1] != 'E') ||
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(hdr->magic[2] != 'F')) {
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printf("Data at %p is not an Fman firmware\n", fmanfw);
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return;
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}
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if (length > CONFIG_SYS_QE_FMAN_FW_LENGTH) {
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printf("Fman firmware at %p is too large (size=%u)\n",
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fmanfw, length);
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return;
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}
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length -= sizeof(u32); /* Subtract the size of the CRC */
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crc = fdt32_to_cpu(*(u32 *)((void *)fmanfw + length));
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if (crc != crc32_no_comp(0, (void *)fmanfw, length)) {
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printf("Fman firmware at %p has invalid CRC\n", fmanfw);
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return;
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}
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length += sizeof(u32);
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/* Increase the size of the fdt to make room for the node. */
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rc = fdt_increase_size(blob, length);
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if (rc < 0) {
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printf("Unable to make room for Fman firmware: %s\n",
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fdt_strerror(rc));
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return;
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}
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/* Create the firmware node. */
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fwnode = fdt_add_subnode(blob, fmnode, "fman-firmware");
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if (fwnode < 0) {
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char s[64];
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fdt_get_path(blob, fmnode, s, sizeof(s));
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printf("Could not add firmware node to %s: %s\n", s,
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fdt_strerror(fwnode));
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return;
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}
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rc = fdt_setprop_string(blob, fwnode, "compatible",
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"fsl,fman-firmware");
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if (rc < 0) {
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char s[64];
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fdt_get_path(blob, fwnode, s, sizeof(s));
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printf("Could not add compatible property to node %s: %s\n", s,
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fdt_strerror(rc));
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return;
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}
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phandle = fdt_create_phandle(blob, fwnode);
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if (!phandle) {
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char s[64];
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fdt_get_path(blob, fwnode, s, sizeof(s));
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printf("Could not add phandle property to node %s: %s\n", s,
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fdt_strerror(rc));
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return;
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}
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rc = fdt_setprop(blob, fwnode, "fsl,firmware", fmanfw, length);
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if (rc < 0) {
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char s[64];
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fdt_get_path(blob, fwnode, s, sizeof(s));
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printf("Could not add firmware property to node %s: %s\n", s,
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fdt_strerror(rc));
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return;
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}
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/* Find all other Fman nodes and point them to the firmware node. */
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while ((fmnode = fdt_node_offset_by_compatible(blob, fmnode,
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"fsl,fman")) > 0) {
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rc = fdt_setprop_cell(blob, fmnode, "fsl,firmware-phandle",
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phandle);
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if (rc < 0) {
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char s[64];
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fdt_get_path(blob, fmnode, s, sizeof(s));
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printf("Could not add pointer property to node %s: %s\n",
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s, fdt_strerror(rc));
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return;
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}
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}
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}
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#endif
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