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/* SPDX-License-Identifier: GPL-2.0-only */
#include <assert.h>
#include <console/console.h>
#include <soc/mcu_common.h>
#include <soc/spm.h>
#include <soc/spm_common.h>
#include <string.h>
#define SPMFW_HEADER_SIZE 16
void spm_parse_firmware(struct mtk_mcu *mcu)
{
size_t file_size, copy_size;
int offset;
u16 firmware_size;
struct dyna_load_pcm *pcm = (struct dyna_load_pcm *)mcu->priv;
file_size = mcu->run_size;
/*
* spmfw layout:
* u16 firmware_size
* u32 binary[firmware_size]
* struct pcm_desc descriptor
* char *version
*/
/* Firmware size */
offset = 0;
copy_size = sizeof(firmware_size);
memcpy(&firmware_size, mcu->load_buffer + offset, copy_size);
printk(BIOS_DEBUG, "SPM: binary array size = %#x\n", firmware_size);
/* Binary */
offset = SPMFW_HEADER_SIZE; /* binary start offset */
copy_size = firmware_size * sizeof(u32);
assert(offset < file_size);
pcm->buf = (u8 *)(mcu->load_buffer + offset);
/* Descriptor */
offset += copy_size;
assert(offset < file_size);
copy_size = sizeof(pcm->desc);
memcpy(&pcm->desc, mcu->load_buffer + offset, copy_size);
/* Firmware size and total words need to be the same */
assert(firmware_size == pcm->desc.total_words);
/* Version */
offset += copy_size;
assert(offset < file_size);
printk(BIOS_INFO, "SPM: spmfw (version %.*s)\n",
(int)(file_size - offset),
(u8 *)mcu->load_buffer + offset);
}
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