X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=common%2Fbootm_os.c;h=1d58462509cc07111c0eeadcd0029ffcee2b9705;hb=d31f1c9236973a463a73cd2748bcc62939fc9247;hp=6fb7d658da69846035f6cfbc901f6360e14c8c95;hpb=9c6115822e894ead72fa4c094bf718eaabb9e103;p=oweals%2Fu-boot.git

diff --git a/common/bootm_os.c b/common/bootm_os.c
index 6fb7d658da..1d58462509 100644
--- a/common/bootm_os.c
+++ b/common/bootm_os.c
@@ -6,10 +6,13 @@
 
 #include <common.h>
 #include <bootm.h>
+#include <cpu_func.h>
+#include <efi_loader.h>
 #include <env.h>
 #include <fdt_support.h>
 #include <linux/libfdt.h>
 #include <malloc.h>
+#include <mapmem.h>
 #include <vxworks.h>
 #include <tee/optee.h>
 
@@ -318,8 +321,8 @@ static void do_bootvx_fdt(bootm_headers_t *images)
 	puts("## vxWorks terminated\n");
 }
 
-int do_bootm_vxworks(int flag, int argc, char * const argv[],
-		     bootm_headers_t *images)
+static int do_bootm_vxworks_legacy(int flag, int argc, char * const argv[],
+				   bootm_headers_t *images)
 {
 	if (flag != BOOTM_STATE_OS_GO)
 		return 0;
@@ -335,6 +338,41 @@ int do_bootm_vxworks(int flag, int argc, char * const argv[],
 
 	return 1;
 }
+
+int do_bootm_vxworks(int flag, int argc, char * const argv[],
+		     bootm_headers_t *images)
+{
+	char *bootargs;
+	int pos;
+	unsigned long vxflags;
+	bool std_dtb = false;
+
+	/* get bootargs env */
+	bootargs = env_get("bootargs");
+
+	if (bootargs != NULL) {
+		for (pos = 0; pos < strlen(bootargs); pos++) {
+			/* find f=0xnumber flag */
+			if ((bootargs[pos] == '=') && (pos >= 1) &&
+			    (bootargs[pos - 1] == 'f')) {
+				vxflags = simple_strtoul(&bootargs[pos + 1],
+							 NULL, 16);
+				if (vxflags & VXWORKS_SYSFLG_STD_DTB)
+					std_dtb = true;
+			}
+		}
+	}
+
+	if (std_dtb) {
+		if (flag & BOOTM_STATE_OS_PREP)
+			printf("   Using standard DTB\n");
+		return do_bootm_linux(flag, argc, argv, images);
+	} else {
+		if (flag & BOOTM_STATE_OS_PREP)
+			printf("   !!! WARNING !!! Using legacy DTB\n");
+		return do_bootm_vxworks_legacy(flag, argc, argv, images);
+	}
+}
 #endif
 
 #if defined(CONFIG_CMD_ELF)
@@ -462,6 +500,57 @@ static int do_bootm_tee(int flag, int argc, char * const argv[],
 }
 #endif
 
+#ifdef CONFIG_BOOTM_EFI
+static int do_bootm_efi(int flag, int argc, char * const argv[],
+			bootm_headers_t *images)
+{
+	int ret;
+	efi_status_t efi_ret;
+	void *image_buf;
+
+	if (flag != BOOTM_STATE_OS_GO)
+		return 0;
+
+	/* Locate FDT, if provided */
+	ret = bootm_find_images(flag, argc, argv);
+	if (ret)
+		return ret;
+
+	/* Initialize EFI drivers */
+	efi_ret = efi_init_obj_list();
+	if (efi_ret != EFI_SUCCESS) {
+		printf("## Failed to initialize UEFI sub-system: r = %lu\n",
+		       efi_ret & ~EFI_ERROR_MASK);
+		return 1;
+	}
+
+	/* Install device tree */
+	efi_ret = efi_install_fdt(images->ft_len
+				  ? images->ft_addr : EFI_FDT_USE_INTERNAL);
+	if (efi_ret != EFI_SUCCESS) {
+		printf("## Failed to install device tree: r = %lu\n",
+		       efi_ret & ~EFI_ERROR_MASK);
+		return 1;
+	}
+
+	/* Run EFI image */
+	printf("## Transferring control to EFI (at address %08lx) ...\n",
+	       images->ep);
+	bootstage_mark(BOOTSTAGE_ID_RUN_OS);
+
+	image_buf = map_sysmem(images->ep, images->os.image_len);
+
+	efi_ret = efi_run_image(image_buf, images->os.image_len);
+	if (efi_ret != EFI_SUCCESS) {
+		printf("## Failed to run EFI image: r = %lu\n",
+		       efi_ret & ~EFI_ERROR_MASK);
+		return 1;
+	}
+
+	return 0;
+}
+#endif
+
 static boot_os_fn *boot_os[] = {
 	[IH_OS_U_BOOT] = do_bootm_standalone,
 #ifdef CONFIG_BOOTM_LINUX
@@ -498,6 +587,9 @@ static boot_os_fn *boot_os[] = {
 #ifdef CONFIG_BOOTM_OPTEE
 	[IH_OS_TEE] = do_bootm_tee,
 #endif
+#ifdef CONFIG_BOOTM_EFI
+	[IH_OS_EFI] = do_bootm_efi,
+#endif
 };
 
 /* Allow for arch specific config before we boot */