]> git.kernelconcepts.de Git - karo-tx-uboot.git/blobdiff - common/spl/spl_mmc.c
dm: mmc: Allow driver model to be used for MMC in SPL
[karo-tx-uboot.git] / common / spl / spl_mmc.c
index 7efdcb88b73412b7602c72af2e265f068031bb06..5f1cfbf98e97daf107d0e07a649534534d153423 100644 (file)
  *
  * Aneesh V <aneesh@ti.com>
  *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier:    GPL-2.0+
  */
 #include <common.h>
+#include <dm.h>
 #include <spl.h>
+#include <linux/compiler.h>
 #include <asm/u-boot.h>
-#include <asm/utils.h>
 #include <mmc.h>
-#include <fat.h>
-#include <version.h>
+#include <image.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
-static void mmc_load_image_raw(struct mmc *mmc)
+static int mmc_load_image_raw_sector(struct mmc *mmc, unsigned long sector)
 {
-       unsigned long err;
+       unsigned long count;
        u32 image_size_sectors;
        struct image_header *header;
 
        header = (struct image_header *)(CONFIG_SYS_TEXT_BASE -
-                                               sizeof(struct image_header));
+                                        sizeof(struct image_header));
 
        /* read image header to find the image size & load address */
-       err = mmc->block_dev.block_read(0,
-                       CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR, 1,
-                       header);
-
-       if (err == 0)
+       count = mmc->block_dev.block_read(0, sector, 1, header);
+       debug("read sector %lx, count=%lu\n", sector, count);
+       if (count == 0)
                goto end;
 
+       if (image_get_magic(header) != IH_MAGIC) {
+               puts("bad magic\n");
+               return -1;
+       }
+
        spl_parse_image_header(header);
 
        /* convert size to sectors - round up */
        image_size_sectors = (spl_image.size + mmc->read_bl_len - 1) /
-                               mmc->read_bl_len;
+                            mmc->read_bl_len;
 
        /* Read the header too to avoid extra memcpy */
-       err = mmc->block_dev.block_read(0,
-                       CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR,
-                       image_size_sectors, (void *)spl_image.load_addr);
+       count = mmc->block_dev.block_read(0, sector, image_size_sectors,
+                                         (void *)spl_image.load_addr);
+       debug("read %x sectors to %x\n", image_size_sectors,
+             spl_image.load_addr);
 
 end:
-       if (err == 0) {
-               printf("spl: mmc blk read err - %lu\n", err);
-               hang();
+       if (count == 0) {
+#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
+               puts("spl: mmc block read error\n");
+#endif
+               return -1;
        }
+
+       return 0;
 }
 
-#ifdef CONFIG_SPL_FAT_SUPPORT
-static void mmc_load_image_fat(struct mmc *mmc)
+#ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION
+static int mmc_load_image_raw_partition(struct mmc *mmc, int partition)
 {
+       disk_partition_t info;
        int err;
-       struct image_header *header;
-
-       header = (struct image_header *)(CONFIG_SYS_TEXT_BASE -
-                                               sizeof(struct image_header));
 
-       err = fat_register_device(&mmc->block_dev,
-                               CONFIG_SYS_MMC_SD_FAT_BOOT_PARTITION);
+       err = get_partition_info(&mmc->block_dev, partition, &info);
        if (err) {
-               printf("spl: fat register err - %d\n", err);
-               hang();
+#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
+               puts("spl: partition error\n");
+#endif
+               return -1;
        }
 
-       err = file_fat_read(CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME,
-                               header, sizeof(struct image_header));
-       if (err <= 0)
-               goto end;
-
-       spl_parse_image_header(header);
-
-       err = file_fat_read(CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME,
-                               (u8 *)spl_image.load_addr, 0);
+       return mmc_load_image_raw_sector(mmc, info.start);
+}
+#endif
 
-end:
-       if (err <= 0) {
-               printf("spl: error reading image %s, err - %d\n",
-                       CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME, err);
-               hang();
+#ifdef CONFIG_SPL_OS_BOOT
+static int mmc_load_image_raw_os(struct mmc *mmc)
+{
+       unsigned long count;
+
+       count = mmc->block_dev.block_read(0,
+               CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR,
+               CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS,
+               (void *) CONFIG_SYS_SPL_ARGS_ADDR);
+       if (count == 0) {
+#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
+               puts("spl: mmc block read error\n");
+#endif
+               return -1;
        }
+
+       return mmc_load_image_raw_sector(mmc,
+               CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR);
 }
 #endif
 
 void spl_mmc_load_image(void)
 {
        struct mmc *mmc;
-       int err;
        u32 boot_mode;
-
+       int err = 0;
+       __maybe_unused int part;
+
+#ifdef CONFIG_DM_MMC
+       struct udevice *dev;
+
+       mmc_initialize(NULL);
+       err = uclass_get_device(UCLASS_MMC, 0, &dev);
+       mmc = NULL;
+       if (!err)
+               mmc = mmc_get_mmc_dev(dev);
+#else
        mmc_initialize(gd->bd);
+
        /* We register only one device. So, the dev id is always 0 */
        mmc = find_mmc_device(0);
        if (!mmc) {
-               puts("spl: mmc device not found!!\n");
+#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
+               puts("spl: mmc device not found\n");
+#endif
                hang();
        }
+#endif
+
+       if (!err)
+               err = mmc_init(mmc);
 
-       err = mmc_init(mmc);
        if (err) {
-               printf("spl: mmc init failed: err - %d\n", err);
+#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
+               printf("spl: mmc init failed with error: %d\n", err);
+#endif
                hang();
        }
+
        boot_mode = spl_boot_mode();
-       if (boot_mode == MMCSD_MODE_RAW) {
-               debug("boot mode - RAW\n");
-               mmc_load_image_raw(mmc);
+       switch (boot_mode) {
+       case MMCSD_MODE_RAW:
+               debug("spl: mmc boot mode: raw\n");
+
+#ifdef CONFIG_SPL_OS_BOOT
+               if (!spl_start_uboot()) {
+                       err = mmc_load_image_raw_os(mmc);
+                       if (!err)
+                               return;
+               }
+#endif
+#if defined(CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION)
+               err = mmc_load_image_raw_partition(mmc,
+                       CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION);
+               if (!err)
+                       return;
+#elif defined(CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR)
+               err = mmc_load_image_raw_sector(mmc,
+                       CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR);
+               if (!err)
+                       return;
+#endif
+       case MMCSD_MODE_FS:
+               debug("spl: mmc boot mode: fs\n");
+
+#ifdef CONFIG_SYS_MMCSD_FS_BOOT_PARTITION
 #ifdef CONFIG_SPL_FAT_SUPPORT
-       } else if (boot_mode == MMCSD_MODE_FAT) {
-               debug("boot mode - FAT\n");
-               mmc_load_image_fat(mmc);
+#ifdef CONFIG_SPL_OS_BOOT
+               if (!spl_start_uboot()) {
+                       err = spl_load_image_fat_os(&mmc->block_dev,
+                               CONFIG_SYS_MMCSD_FS_BOOT_PARTITION);
+                       if (!err)
+                               return;
+               }
+#endif
+#ifdef CONFIG_SPL_FS_LOAD_PAYLOAD_NAME
+               err = spl_load_image_fat(&mmc->block_dev,
+                                        CONFIG_SYS_MMCSD_FS_BOOT_PARTITION,
+                                        CONFIG_SPL_FS_LOAD_PAYLOAD_NAME);
+               if (!err)
+                       return;
+#endif
+#endif
+#ifdef CONFIG_SPL_EXT_SUPPORT
+#ifdef CONFIG_SPL_OS_BOOT
+               if (!spl_start_uboot()) {
+                       err = spl_load_image_ext_os(&mmc->block_dev,
+                               CONFIG_SYS_MMCSD_FS_BOOT_PARTITION);
+                       if (!err)
+                               return;
+               }
+#endif
+#ifdef CONFIG_SPL_FS_LOAD_PAYLOAD_NAME
+               err = spl_load_image_ext(&mmc->block_dev,
+                                        CONFIG_SYS_MMCSD_FS_BOOT_PARTITION,
+                                        CONFIG_SPL_FS_LOAD_PAYLOAD_NAME);
+               if (!err)
+                       return;
+#endif
+#endif
+#endif
+#ifdef CONFIG_SUPPORT_EMMC_BOOT
+       case MMCSD_MODE_EMMCBOOT:
+               /*
+                * We need to check what the partition is configured to.
+                * 1 and 2 match up to boot0 / boot1 and 7 is user data
+                * which is the first physical partition (0).
+                */
+               part = (mmc->part_config >> 3) & PART_ACCESS_MASK;
+
+               if (part == 7)
+                       part = 0;
+
+               if (mmc_switch_part(0, part)) {
+#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
+                       puts("spl: mmc partition switch failed\n");
+#endif
+                       hang();
+               }
+
+#ifdef CONFIG_SPL_OS_BOOT
+               if (!spl_start_uboot()) {
+                       err = mmc_load_image_raw_os(mmc);
+                       if (!err)
+                               return;
+               }
+#endif
+#if defined(CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION)
+               err = mmc_load_image_raw_partition(mmc,
+                       CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION);
+               if (!err)
+                       return;
+#elif defined(CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR)
+               err = mmc_load_image_raw_sector(mmc,
+                       CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR);
+               if (!err)
+                       return;
+#endif
+#endif
+       case MMCSD_MODE_UNDEFINED:
+       default:
+#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
+               if (err)
+                       puts("spl: mmc: no boot mode left to try\n");
+               else
+                       puts("spl: mmc: wrong boot mode\n");
 #endif
-       } else {
-               puts("spl: wrong MMC boot mode\n");
                hang();
        }
 }