diff options
Diffstat (limited to 'src/soc/amd/common/block/psp/psp.c')
| -rw-r--r-- | src/soc/amd/common/block/psp/psp.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/src/soc/amd/common/block/psp/psp.c b/src/soc/amd/common/block/psp/psp.c index 8b3605e6fa..5aedfc138f 100644 --- a/src/soc/amd/common/block/psp/psp.c +++ b/src/soc/amd/common/block/psp/psp.c @@ -14,6 +14,8 @@ */ #include <arch/io.h> +#include <cbfs.h> +#include <region_file.h> #include <timer.h> #include <device/pci_def.h> #include <console/console.h> @@ -199,3 +201,58 @@ int psp_notify_dram(void) return cmd_status; } + +/* + * Tell the PSP to load a firmware blob from a location in the BIOS image. + */ +static int psp_load_blob(int type, void *addr) +{ + int cmd_status; + + if (!IS_ENABLED(CONFIG_SOC_AMD_PSP_SELECTABLE_SMU_FW)) { + printk(BIOS_ERR, "BUG: Selectable firmware is not supported\n"); + return PSPSTS_UNSUPPORTED; + } + + /* only two types currently supported */ + if (type != MBOX_BIOS_CMD_SMU_FW && type != MBOX_BIOS_CMD_SMU_FW2) { + printk(BIOS_ERR, "BUG: Invalid PSP blob type %x\n", type); + return PSPSTS_INVALID_BLOB; + } + + printk(BIOS_DEBUG, "PSP: Load blob type %x from @%p... ", type, addr); + + /* Blob commands use the buffer registers as data, not pointer to buf */ + cmd_status = send_psp_command(type, addr); + + if (cmd_status) + printk(BIOS_DEBUG, "%s\n", status_to_string(cmd_status)); + else + printk(BIOS_DEBUG, "OK\n"); + + return cmd_status; +} + +int psp_load_named_blob(int type, const char *name) +{ + void *blob; + struct cbfsf cbfs_file; + struct region_device rdev; + int r; + + if (cbfs_boot_locate(&cbfs_file, name, NULL)) { + printk(BIOS_ERR, "BUG: Cannot locate blob for PSP loading\n"); + return PSPSTS_INVALID_NAME; + } + + cbfs_file_data(&rdev, &cbfs_file); + blob = rdev_mmap_full(&rdev); + if (blob) { + r = psp_load_blob(type, blob); + rdev_munmap(&rdev, blob); + } else { + printk(BIOS_ERR, "BUG: Cannot map blob for PSP loading\n"); + return PSPSTS_INVALID_NAME; + } + return r; +} |