soc/amd/common/block/psp: move psp_load_named_blob to psp_gen1.c

This function is only needed and valid for the 1st generation PSP
interface used on stoneyridge.

BUG=b:153677737

Change-Id: Ia1be09c32271fe9480a0acbe324c4a45d8620882
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40360
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

1 files changed, 54 insertions, 0 deletions

diff --git a/src/soc/amd/common/block/psp/psp_gen1.c b/src/soc/amd/common/block/psp/psp_gen1.c
index 0e5aa30154..b707933553 100644
--- a/src/soc/amd/common/block/psp/psp_gen1.c
+++ b/src/soc/amd/common/block/psp/psp_gen1.c
@@ -2,8 +2,11 @@
 /* This file is part of the coreboot project. */
 
 #include <device/mmio.h>
+#include <cbfs.h>
+#include <region_file.h>
 #include <timer.h>
 #include <bootstate.h>
+#include <console/console.h>
 #include <amdblocks/psp.h>
 #include <soc/iomap.h>
 #include <soc/northbridge.h>
@@ -91,3 +94,54 @@ int send_psp_command(u32 command, void *buffer)
 
 	return 0;
 }
+
+/*
+ * Tell the PSP to load a firmware blob from a location in the BIOS image.
+ */
+int psp_load_named_blob(enum psp_blob_type type, const char *name)
+{
+	int cmd_status;
+	u32 command;
+	void *blob;
+	struct cbfsf cbfs_file;
+	struct region_device rdev;
+
+	switch (type) {
+	case BLOB_SMU_FW:
+		command = MBOX_BIOS_CMD_SMU_FW;
+		break;
+	case BLOB_SMU_FW2:
+		command = MBOX_BIOS_CMD_SMU_FW2;
+		break;
+	default:
+		printk(BIOS_ERR, "BUG: Invalid PSP blob type %x\n", type);
+		return -PSPSTS_INVALID_BLOB;
+	}
+
+	/* type can only be BLOB_SMU_FW or BLOB_SMU_FW2 here, so don't re-check for this */
+	if (!CONFIG(SOC_AMD_PSP_SELECTABLE_SMU_FW)) {
+		printk(BIOS_ERR, "BUG: Selectable firmware is not supported\n");
+		return -PSPSTS_UNSUPPORTED;
+	}
+
+	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) {
+		printk(BIOS_ERR, "BUG: Cannot map blob for PSP loading\n");
+		return -PSPSTS_INVALID_NAME;
+	}
+
+	printk(BIOS_DEBUG, "PSP: Load blob type %x from @%p... ", type, blob);
+
+	/* Blob commands use the buffer registers as data, not pointer to buf */
+	cmd_status = send_psp_command(command, blob);
+	psp_print_cmd_status(cmd_status, NULL);
+
+	rdev_munmap(&rdev, blob);
+	return cmd_status;
+}