Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / common / spl / spl_fat.c

diff --git a/qemu/roms/u-boot/common/spl/spl_fat.c b/qemu/roms/u-boot/common/spl/spl_fat.c
new file mode 100644 (file)
index 0000000..56be943
--- /dev/null
+++ b/qemu/roms/u-boot/common/spl/spl_fat.c
@@ -0,0 +1,123 @@
+/*
+ * (C) Copyright 2014
+ * Texas Instruments, <www.ti.com>
+ *
+ * Dan Murphy <dmurphy@ti.com>
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ *
+ * FAT Image Functions copied from spl_mmc.c
+ */
+
+#include <common.h>
+#include <spl.h>
+#include <asm/u-boot.h>
+#include <fat.h>
+#include <image.h>
+
+static int fat_registered;
+
+#ifdef CONFIG_SPL_FAT_SUPPORT
+static int spl_register_fat_device(block_dev_desc_t *block_dev, int partition)
+{
+       int err = 0;
+
+       if (fat_registered)
+               return err;
+
+       err = fat_register_device(block_dev, partition);
+       if (err) {
+#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
+               printf("%s: fat register err - %d\n", __func__, err);
+#endif
+               hang();
+       }
+
+       fat_registered = 1;
+
+       return err;
+}
+
+int spl_load_image_fat(block_dev_desc_t *block_dev,
+                                               int partition,
+                                               const char *filename)
+{
+       int err;
+       struct image_header *header;
+
+       err = spl_register_fat_device(block_dev, partition);
+       if (err)
+               goto end;
+
+       header = (struct image_header *)(CONFIG_SYS_TEXT_BASE -
+                                               sizeof(struct image_header));
+
+       err = file_fat_read(filename, header, sizeof(struct image_header));
+       if (err <= 0)
+               goto end;
+
+       spl_parse_image_header(header);
+
+       err = file_fat_read(filename, (u8 *)spl_image.load_addr, 0);
+
+end:
+#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
+       if (err <= 0)
+               printf("%s: error reading image %s, err - %d\n",
+                      __func__, filename, err);
+#endif
+
+       return (err <= 0);
+}
+
+#ifdef CONFIG_SPL_OS_BOOT
+int spl_load_image_fat_os(block_dev_desc_t *block_dev, int partition)
+{
+       int err;
+       __maybe_unused char *file;
+
+       err = spl_register_fat_device(block_dev, partition);
+       if (err)
+               return err;
+
+#if defined(CONFIG_SPL_ENV_SUPPORT) && defined(CONFIG_SPL_OS_BOOT)
+       file = getenv("falcon_args_file");
+       if (file) {
+               err = file_fat_read(file, (void *)CONFIG_SYS_SPL_ARGS_ADDR, 0);
+               if (err <= 0) {
+                       printf("spl: error reading image %s, err - %d, falling back to default\n",
+                              file, err);
+                       goto defaults;
+               }
+               file = getenv("falcon_image_file");
+               if (file) {
+                       err = spl_load_image_fat(block_dev, partition, file);
+                       if (err != 0) {
+                               puts("spl: falling back to default\n");
+                               goto defaults;
+                       }
+
+                       return 0;
+               } else
+                       puts("spl: falcon_image_file not set in environment, falling back to default\n");
+       } else
+               puts("spl: falcon_args_file not set in environment, falling back to default\n");
+
+defaults:
+#endif
+
+       err = file_fat_read(CONFIG_SPL_FAT_LOAD_ARGS_NAME,
+                           (void *)CONFIG_SYS_SPL_ARGS_ADDR, 0);
+       if (err <= 0) {
+#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
+               printf("%s: error reading image %s, err - %d\n",
+                      __func__, CONFIG_SPL_FAT_LOAD_ARGS_NAME, err);
+#endif
+               return -1;
+       }
+
+       return spl_load_image_fat(block_dev, partition,
+                       CONFIG_SPL_FAT_LOAD_KERNEL_NAME);
+}
+#endif
+#endif