mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-27 13:33:40 +00:00
3058e283b8
Add macro fdt_for_each_node_by_compatible() to allow iterating over
fdt nodes by compatible string.
Convert various usages of
off = fdt_node_offset_by_compatible(fdt, start, compat);
while (off > 0) {
code();
off = fdt_node_offset_by_compatible(fdt, off, compat);
}
and similar, to
fdt_for_each_node_by_compatible(off, fdt, start, compat)
code();
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
130 lines
3.6 KiB
C
130 lines
3.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright 2016 Freescale Semiconductor, Inc.
|
|
*/
|
|
#include <asm/io.h>
|
|
#include <env.h>
|
|
#include <fdt_support.h>
|
|
#include <fsl_qe.h> /* For struct qe_firmware */
|
|
#include <u-boot/crc.h>
|
|
|
|
#ifdef CONFIG_SYS_DPAA_FMAN
|
|
/**
|
|
* fdt_fixup_fman_firmware -- insert the Fman firmware into the device tree
|
|
*
|
|
* The binding for an Fman firmware node is documented in
|
|
* Documentation/powerpc/dts-bindings/fsl/dpaa/fman.txt. This node contains
|
|
* the actual Fman firmware binary data. The operating system is expected to
|
|
* be able to parse the binary data to determine any attributes it needs.
|
|
*/
|
|
void fdt_fixup_fman_firmware(void *blob)
|
|
{
|
|
int rc, fmnode, fwnode = -1;
|
|
uint32_t phandle;
|
|
struct qe_firmware *fmanfw;
|
|
const struct qe_header *hdr;
|
|
unsigned int length;
|
|
uint32_t crc;
|
|
const char *p;
|
|
|
|
/* The first Fman we find will contain the actual firmware. */
|
|
fmnode = fdt_node_offset_by_compatible(blob, -1, "fsl,fman");
|
|
if (fmnode < 0)
|
|
/* Exit silently if there are no Fman devices */
|
|
return;
|
|
|
|
/* If we already have a firmware node, then also exit silently. */
|
|
if (fdt_node_offset_by_compatible(blob, -1, "fsl,fman-firmware") > 0)
|
|
return;
|
|
|
|
/* If the environment variable is not set, then exit silently */
|
|
p = env_get("fman_ucode");
|
|
if (!p)
|
|
return;
|
|
|
|
fmanfw = (struct qe_firmware *)hextoul(p, NULL);
|
|
if (!fmanfw)
|
|
return;
|
|
|
|
hdr = &fmanfw->header;
|
|
length = fdt32_to_cpu(hdr->length);
|
|
|
|
/* Verify the firmware. */
|
|
if ((hdr->magic[0] != 'Q') || (hdr->magic[1] != 'E') ||
|
|
(hdr->magic[2] != 'F')) {
|
|
printf("Data at %p is not an Fman firmware\n", fmanfw);
|
|
return;
|
|
}
|
|
|
|
if (length > CONFIG_SYS_QE_FMAN_FW_LENGTH) {
|
|
printf("Fman firmware at %p is too large (size=%u)\n",
|
|
fmanfw, length);
|
|
return;
|
|
}
|
|
|
|
length -= sizeof(u32); /* Subtract the size of the CRC */
|
|
crc = fdt32_to_cpu(*(u32 *)((void *)fmanfw + length));
|
|
if (crc != crc32_no_comp(0, (void *)fmanfw, length)) {
|
|
printf("Fman firmware at %p has invalid CRC\n", fmanfw);
|
|
return;
|
|
}
|
|
|
|
length += sizeof(u32);
|
|
|
|
/* Increase the size of the fdt to make room for the node. */
|
|
rc = fdt_increase_size(blob, length);
|
|
if (rc < 0) {
|
|
printf("Unable to make room for Fman firmware: %s\n",
|
|
fdt_strerror(rc));
|
|
return;
|
|
}
|
|
|
|
/* Create the firmware node. */
|
|
fwnode = fdt_add_subnode(blob, fmnode, "fman-firmware");
|
|
if (fwnode < 0) {
|
|
char s[64];
|
|
fdt_get_path(blob, fmnode, s, sizeof(s));
|
|
printf("Could not add firmware node to %s: %s\n", s,
|
|
fdt_strerror(fwnode));
|
|
return;
|
|
}
|
|
rc = fdt_setprop_string(blob, fwnode, "compatible",
|
|
"fsl,fman-firmware");
|
|
if (rc < 0) {
|
|
char s[64];
|
|
fdt_get_path(blob, fwnode, s, sizeof(s));
|
|
printf("Could not add compatible property to node %s: %s\n", s,
|
|
fdt_strerror(rc));
|
|
return;
|
|
}
|
|
phandle = fdt_create_phandle(blob, fwnode);
|
|
if (!phandle) {
|
|
char s[64];
|
|
fdt_get_path(blob, fwnode, s, sizeof(s));
|
|
printf("Could not add phandle property to node %s: %s\n", s,
|
|
fdt_strerror(rc));
|
|
return;
|
|
}
|
|
rc = fdt_setprop(blob, fwnode, "fsl,firmware", fmanfw, length);
|
|
if (rc < 0) {
|
|
char s[64];
|
|
fdt_get_path(blob, fwnode, s, sizeof(s));
|
|
printf("Could not add firmware property to node %s: %s\n", s,
|
|
fdt_strerror(rc));
|
|
return;
|
|
}
|
|
|
|
/* Find all other Fman nodes and point them to the firmware node. */
|
|
fdt_for_each_node_by_compatible(fmnode, blob, fmnode, "fsl,fman") {
|
|
rc = fdt_setprop_cell(blob, fmnode, "fsl,firmware-phandle",
|
|
phandle);
|
|
if (rc < 0) {
|
|
char s[64];
|
|
fdt_get_path(blob, fmnode, s, sizeof(s));
|
|
printf("Could not add pointer property to node %s: %s\n",
|
|
s, fdt_strerror(rc));
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
#endif
|