spl: common: Move FAT funcs to a common file

Move the FAT functions to a common location for reuse.

Signed-off-by: Dan Murphy <dmurphy@ti.com>

diff --git a/common/spl/Makefile b/common/spl/Makefile
index 5c0637b750bfa98a1e608898d22bea96bfba369b..c8d5963df797489c1950faf08ed2921a7410efe0 100644 (file)
--- a/common/spl/Makefile
+++ b/common/spl/Makefile
@@ -16,4 +16,5 @@ obj-$(CONFIG_SPL_NAND_SUPPORT) += spl_nand.o
 obj-$(CONFIG_SPL_ONENAND_SUPPORT) += spl_onenand.o
 obj-$(CONFIG_SPL_NET_SUPPORT) += spl_net.o
 obj-$(CONFIG_SPL_MMC_SUPPORT) += spl_mmc.o
+obj-$(CONFIG_SPL_FAT_SUPPORT) += spl_fat.o
 endif

diff --git a/common/spl/spl_fat.c b/common/spl/spl_fat.c
new file mode 100644 (file)
index 0000000..9b40584
--- /dev/null
+++ b/common/spl/spl_fat.c
@@ -0,0 +1,96 @@
+/*
+ * (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("spl: fat register err - %d\n", 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 <= 0)
+               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("spl: error reading image %s, err - %d\n",
+                      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;
+
+       err = spl_register_fat_device(block_dev, partition);
+       if (err <= 0)
+               return -1;
+
+       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("spl: error reading image %s, err - %d\n",
+                      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

diff --git a/common/spl/spl_mmc.c b/common/spl/spl_mmc.c
index fc2f2260f888a308d26d7a63fb5db6e5b95b78df..13fbff082cfe48bc4b846228d6463db3e7b342f0 100644 (file)
--- a/common/spl/spl_mmc.c
+++ b/common/spl/spl_mmc.c
@@ -10,7 +10,6 @@
 #include <spl.h>
 #include <asm/u-boot.h>
 #include <mmc.h>
-#include <fat.h>
 #include <version.h>
 #include <image.h>
 
@@ -69,54 +68,6 @@ static int mmc_load_image_raw_os(struct mmc *mmc)
 }
 #endif
 
-#ifdef CONFIG_SPL_FAT_SUPPORT
-static int mmc_load_image_fat(struct mmc *mmc, const char *filename)
-{
-       int err;
-       struct image_header *header;
-
-       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("spl: error reading image %s, err - %d\n",
-                      filename, err);
-#endif
-
-       return (err <= 0);
-}
-
-#ifdef CONFIG_SPL_OS_BOOT
-static int mmc_load_image_fat_os(struct mmc *mmc)
-{
-       int err;
-
-       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("spl: error reading image %s, err - %d\n",
-                      CONFIG_SPL_FAT_LOAD_ARGS_NAME, err);
-#endif
-               return -1;
-       }
-
-       return mmc_load_image_fat(mmc, CONFIG_SPL_FAT_LOAD_KERNEL_NAME);
-}
-#endif
-
-#endif
-
 void spl_mmc_load_image(void)
 {
        struct mmc *mmc;
@@ -148,24 +99,17 @@ void spl_mmc_load_image(void)
                if (spl_start_uboot() || mmc_load_image_raw_os(mmc))
 #endif
                err = mmc_load_image_raw(mmc,
-                                        CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR);
+                       CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR);
 #ifdef CONFIG_SPL_FAT_SUPPORT
        } else if (boot_mode == MMCSD_MODE_FAT) {
                debug("boot mode - FAT\n");
-
-               err = fat_register_device(&mmc->block_dev,
-                                         CONFIG_SYS_MMC_SD_FAT_BOOT_PARTITION);
-               if (err) {
-#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
-                       printf("spl: fat register err - %d\n", err);
-#endif
-                       hang();
-               }
-
 #ifdef CONFIG_SPL_OS_BOOT
-               if (spl_start_uboot() || mmc_load_image_fat_os(mmc))
+               if (spl_start_uboot() || spl_load_image_fat_os(&mmc->block_dev,
+                                                               CONFIG_SYS_MMC_SD_FAT_BOOT_PARTITION))
 #endif
-               err = mmc_load_image_fat(mmc, CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME);
+               err = spl_load_image_fat(&mmc->block_dev,
+                                       CONFIG_SYS_MMC_SD_FAT_BOOT_PARTITION,
+                                       CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME);
 #endif
        } else {
 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT

diff --git a/include/spl.h b/include/spl.h
index 2bd6e16a0e10f2cf1cb9c90f6bc11cbb9cd45133..cd5cd26501ca8706b13408a8481b50e5da7b0f3b 100644 (file)
--- a/include/spl.h
+++ b/include/spl.h
@@ -11,6 +11,7 @@
 #include <linux/compiler.h>
 #include <asm/spl.h>
 
+
 /* Boot type */
 #define MMCSD_MODE_UNDEFINED   0
 #define MMCSD_MODE_RAW         1
@@ -60,6 +61,10 @@ void spl_spi_load_image(void);
 /* Ethernet SPL functions */
 void spl_net_load_image(const char *device);
 
+/* SPL FAT image functions */
+int spl_load_image_fat(block_dev_desc_t *block_dev, int partition, const char *filename);
+int spl_load_image_fat_os(block_dev_desc_t *block_dev, int partition);
+
 #ifdef CONFIG_SPL_BOARD_INIT
 void spl_board_init(void);
 #endif