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-rw-r--r--util/amdfwtool/amdfwtool.c151
1 files changed, 102 insertions, 49 deletions
diff --git a/util/amdfwtool/amdfwtool.c b/util/amdfwtool/amdfwtool.c
index 234760dfa7..3ed6885624 100644
--- a/util/amdfwtool/amdfwtool.c
+++ b/util/amdfwtool/amdfwtool.c
@@ -78,6 +78,10 @@
#define ALIGN(val, by) (((val) + (by) - 1) & ~((by) - 1))
+#define EMBEDDED_FW_SIGNATURE 0x55aa55aa
+#define PSP_COOKIE 0x50535024 /* 'PSP$' */
+#define PSP2_COOKIE 0x50535032 /* 'PSP2' */
+
/*
Reserved for future.
TODO: PSP2 is for Combo BIOS, which is the idea that one image supports 2
@@ -92,6 +96,7 @@
#define PSP_COMBO 0
#endif
+typedef unsigned long long int uint64_t;
typedef unsigned int uint32_t;
typedef unsigned char uint8_t;
typedef unsigned short uint16_t;
@@ -272,17 +277,68 @@ static amd_fw_entry amd_fw_table[] = {
{ .type = AMD_FW_INVALID },
};
-static void fill_psp_head(uint32_t *pspdir, uint32_t count)
+typedef struct _embedded_firmware {
+ uint32_t signature; /* 0x55aa55aa */
+ uint32_t imc_entry;
+ uint32_t gec_entry;
+ uint32_t xhci_entry;
+ uint32_t psp_entry;
+ uint32_t comboable;
+} __attribute__((packed, aligned(16))) embedded_firmware;
+
+typedef struct _psp_directory_header {
+ uint32_t cookie;
+ uint32_t checksum;
+ uint32_t num_entries;
+ uint32_t reserved;
+} __attribute__((packed, aligned(16))) psp_directory_header;
+
+typedef struct _psp_directory_entry {
+ uint32_t type; /* b[15:8] may be a modifier, e.g. subprogram */
+ uint32_t size;
+ uint64_t addr; /* or a value in some cases */
+} __attribute__((packed)) psp_directory_entry;
+
+typedef struct _psp_directory_table {
+ psp_directory_header header;
+ psp_directory_entry entries[];
+} __attribute__((packed)) psp_directory_table;
+
+typedef struct _psp_combo_header {
+ uint32_t cookie;
+ uint32_t checksum;
+ uint32_t num_entries;
+ uint32_t lookup;
+ uint64_t reserved[2];
+} __attribute__((packed, aligned(16))) psp_combo_header;
+
+typedef struct _psp_combo_entry {
+ uint32_t id_sel;
+ uint32_t id;
+ uint64_t lvl2_addr;
+} __attribute__((packed)) psp_combo_entry;
+
+typedef struct _psp_combo_directory {
+ psp_combo_header header;
+ psp_combo_entry entries[];
+} __attribute__((packed)) psp_combo_directory;
+
+static void fill_psp_head(psp_directory_table *pspdir, uint32_t count)
{
- pspdir[0] = 0x50535024; /* 'PSP$' */
- pspdir[2] = count; /* size */
- pspdir[3] = 0;
- pspdir[1] = fletcher32((uint16_t *)&pspdir[1],
- (count * 16 + 16) / 2 - 2);
+ pspdir->header.cookie = PSP_COOKIE;
+ pspdir->header.num_entries = count;
+ pspdir->header.reserved = 0;
+ /* checksum everything that comes after the Checksum field */
+ pspdir->header.checksum = fletcher32(
+ (void *)&pspdir->header.num_entries,
+ (count * sizeof(psp_directory_entry)
+ + sizeof(pspdir->header.num_entries)
+ + sizeof(pspdir->header.reserved)) / 2);
}
-static uint32_t integrate_firmwares(char *base, uint32_t pos, uint32_t *romsig,
- amd_fw_entry *fw_table, uint32_t rom_size)
+static uint32_t integrate_firmwares(char *base, uint32_t pos,
+ embedded_firmware *romsig,
+ amd_fw_entry *fw_table, uint32_t rom_size)
{
int fd;
ssize_t bytes;
@@ -307,13 +363,13 @@ static uint32_t integrate_firmwares(char *base, uint32_t pos, uint32_t *romsig,
switch (fw_table[i].type) {
case AMD_FW_IMC:
pos = ALIGN(pos, 0x10000U);
- romsig[1] = pos + rom_base_address;
+ romsig->imc_entry = pos + rom_base_address;
break;
case AMD_FW_GEC:
- romsig[2] = pos + rom_base_address;
+ romsig->gec_entry = pos + rom_base_address;
break;
case AMD_FW_XHCI:
- romsig[3] = pos + rom_base_address;
+ romsig->xhci_entry = pos + rom_base_address;
break;
default:
/* Error */
@@ -348,7 +404,7 @@ static uint32_t integrate_firmwares(char *base, uint32_t pos, uint32_t *romsig,
}
static uint32_t integrate_psp_firmwares(char *base, uint32_t pos,
- uint32_t *pspdir,
+ psp_directory_table *pspdir,
amd_fw_entry *fw_table,
uint32_t rom_size)
{
@@ -360,13 +416,12 @@ static uint32_t integrate_psp_firmwares(char *base, uint32_t pos,
for (i = 0, count = 0; fw_table[i].type != AMD_FW_INVALID; i++) {
if (fw_table[i].type == AMD_PSP_FUSE_CHAIN) {
- pspdir[4+4*count+0] = fw_table[i].type;
- pspdir[4+4*count+1] = 0xFFFFFFFF;
- pspdir[4+4*count+2] = 1;
- pspdir[4+4*count+3] = 0;
+ pspdir->entries[count].type = fw_table[i].type;
+ pspdir->entries[count].size = 0xFFFFFFFF;
+ pspdir->entries[count].addr = 1;
count++;
} else if (fw_table[i].filename != NULL) {
- pspdir[4+4*count+0] = fw_table[i].type;
+ pspdir->entries[count].type = fw_table[i].type;
fd = open(fw_table[i].filename, O_RDONLY);
if (fd < 0) {
@@ -379,10 +434,8 @@ static uint32_t integrate_psp_firmwares(char *base, uint32_t pos,
free(base);
exit(1);
}
- pspdir[4+4*count+1] = (uint32_t)fd_stat.st_size;
-
- pspdir[4+4*count+2] = pos + rom_base_address;
- pspdir[4+4*count+3] = 0;
+ pspdir->entries[count].size = (uint32_t)fd_stat.st_size;
+ pspdir->entries[count].addr = pos + rom_base_address;
if (pos + fd_stat.st_size > rom_size) {
printf("Error: Specified ROM size of %d"
@@ -505,7 +558,7 @@ int main(int argc, char **argv)
int retval = 0;
#if PSP2
int psp2flag = 0;
- uint32_t *psp2dir;
+ psp_directory_table *psp2dir;
char *tmp;
#endif
#if PSP_COMBO
@@ -514,7 +567,8 @@ int main(int argc, char **argv)
char *rom = NULL;
uint32_t current;
- uint32_t *amd_romsig, *pspdir;
+ embedded_firmware *amd_romsig;
+ psp_directory_table *pspdir;
int targetfd;
char *output = NULL;
@@ -746,13 +800,13 @@ int main(int argc, char **argv)
printf(" AMDFWTOOL Using firmware directory location of %08lx\n",
(unsigned long)rom_base_address + current);
- amd_romsig = (void *)(rom + romsig_offset);
- amd_romsig[0] = 0x55AA55AA; /* romsig */
- amd_romsig[1] = 0;
- amd_romsig[2] = 0;
- amd_romsig[3] = 0;
+ amd_romsig = (embedded_firmware *)(rom + romsig_offset);
+ amd_romsig->signature = EMBEDDED_FW_SIGNATURE;
+ amd_romsig->imc_entry = 0;
+ amd_romsig->gec_entry = 0;
+ amd_romsig->xhci_entry = 0;
- current += 0x20; /* size of ROMSIG */
+ current += sizeof(embedded_firmware);
current = ALIGN(current, 0x1000U);
current = integrate_firmwares(rom, current, amd_romsig,
amd_fw_table, rom_size);
@@ -760,7 +814,7 @@ int main(int argc, char **argv)
if (pspflag == 1) {
current = ALIGN(current, 0x10000U);
pspdir = (void *)(rom + current);
- amd_romsig[4] = current + rom_base_address;
+ amd_romsig->psp_entry = current + rom_base_address;
current += 0x200; /* Conservative size of pspdir */
current = integrate_psp_firmwares(rom, current, pspdir,
@@ -771,35 +825,34 @@ int main(int argc, char **argv)
if (psp2flag == 1) {
current = ALIGN(current, 0x10000U); /* PSP2 dir */
psp2dir = (void *)(rom + current);
- amd_romsig[5] = current + rom_base_address;
+ amd_romsig->comboable = current + rom_base_address;
current += 0x200; /* Add conservative size of psp2dir. */
#if PSP_COMBO
/* TODO: remove the hardcode. */
- psp2count = 1; /* Start from 1. */
- /* for (; psp2count <= PSP2COUNT; psp2count++, current=ALIGN(current, 0x100)) { */
- /* Now the psp2dir is psp combo dir. */
- psp2dir[psp2count*4 + 0 + 4] = 0; /* 0 -Compare PSP ID, 1 -Compare chip family ID */
- psp2dir[psp2count*4 + 1 + 4] = 0x10220B00; /* TODO: PSP ID. Documentation is needed. */
- psp2dir[psp2count*4 + 2 + 4] = current + rom_base_address;
- pspdir = rom + current;
- psp2dir[psp2count*4 + 3 + 4] = 0;
+ psp_combo_directory *combo_dir = (psp_combo_directory *)psp2dir;
+ combo_dir->entries[0].id_sel = 0; /* 0 -Compare PSP ID, 1 -Compare chip family ID */
+ combo_dir->entries[0].id = 0x10220B00; /* TODO: PSP ID. Documentation is needed. */
+ combo_dir->entries[0].lvl2_addr = current + rom_base_address;
+ pspdir = (psp_directory_table *)(rom + current);
current += 0x200; /* Add conservative size of pspdir. Start of PSP entries. */
current = integrate_psp_firmwares(rom, current, pspdir,
amd_psp2_fw_table, rom_size);
- /* } */ /* End of loop */
/* fill the PSP combo head */
- psp2dir[0] = 0x50535032; /* 'PSP2' */
- psp2dir[2] = psp2count; /* Count */
- psp2dir[3] = 1; /* 0-Dynamic look up through all entries, 1-PSP/chip ID match */
- psp2dir[4] = 0; /* reserved 4 dwords. */
- psp2dir[5] = 0;
- psp2dir[6] = 0;
- psp2dir[7] = 0;
- psp2dir[1] = fletcher32((uint16_t *)&psp2dir[1],
- (psp2count * 16 + 32) / 2 - 2);
+ combo_dir->header.cookie = PSP2_COOKIE;
+ combo_dir->header.num_entries = 1;
+ combo_dir->header.lookup = 1;
+ combo_dir->header.reserved[0] = 0;
+ combo_dir->header.reserved[1] = 0;
+ combo_dir->header.checksum = fletcher32(
+ (void *)&combo_dir->header.num_entries,
+ (1 * sizeof(psp_directory_entry)
+ + sizeof(combo_dir->header.num_entries)
+ + sizeof(combo_dir->header.lookup)
+ + sizeof(combo_dir->header.reserved[0])
+ + sizeof(combo_dir->header.reserved[1])) / 2);
#else
current = integrate_psp_firmwares(rom, current, psp2dir,
amd_psp2_fw_table, rom_size);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 12:59:23 +0000