*/
#include <common.h>
#include <asm/u-boot.h>
+#include <asm/utils.h>
#include <asm/arch/sys_proto.h>
+#include <mmc.h>
+#include <fat.h>
#include <timestamp_autogenerated.h>
#include <version_autogenerated.h>
+#include <asm/omap_common.h>
+#include <asm/arch/mmc_host_def.h>
+#include <i2c.h>
+#include <image.h>
DECLARE_GLOBAL_DATA_PTR;
/* Define global data structure pointer to it*/
static gd_t gdata __attribute__ ((section(".data")));
static bd_t bdata __attribute__ ((section(".data")));
+static const char *image_name;
+static u8 image_os;
+static u32 image_load_addr;
+static u32 image_entry_point;
+static u32 image_size;
inline void hang(void)
{
relocate_code(CONFIG_SPL_STACK, &gdata, CONFIG_SPL_TEXT_BASE);
}
+#ifdef CONFIG_GENERIC_MMC
+int board_mmc_init(bd_t *bis)
+{
+ switch (omap_boot_device()) {
+ case BOOT_DEVICE_MMC1:
+ omap_mmc_init(0);
+ break;
+ case BOOT_DEVICE_MMC2:
+ omap_mmc_init(1);
+ break;
+ }
+ return 0;
+}
+#endif
+
+static void parse_image_header(const struct image_header *header)
+{
+ u32 header_size = sizeof(struct image_header);
+
+ if (__be32_to_cpu(header->ih_magic) == IH_MAGIC) {
+ image_size = __be32_to_cpu(header->ih_size) + header_size;
+ image_entry_point = __be32_to_cpu(header->ih_load);
+ /* Load including the header */
+ image_load_addr = image_entry_point - header_size;
+ image_os = header->ih_os;
+ image_name = (const char *)&header->ih_name;
+ debug("spl: payload image: %s load addr: 0x%x size: %d\n",
+ image_name, image_load_addr, image_size);
+ } else {
+ /* Signature not found - assume u-boot.bin */
+ printf("mkimage signature not found - ih_magic = %x\n",
+ header->ih_magic);
+ puts("Assuming u-boot.bin ..\n");
+ /* Let's assume U-Boot will not be more than 200 KB */
+ image_size = 200 * 1024;
+ image_entry_point = CONFIG_SYS_TEXT_BASE;
+ image_load_addr = CONFIG_SYS_TEXT_BASE;
+ image_os = IH_OS_U_BOOT;
+ image_name = "U-Boot";
+ }
+}
+
+static void mmc_load_image_raw(struct mmc *mmc)
+{
+ u32 image_size_sectors, err;
+ const struct image_header *header;
+
+ header = (struct image_header *)(CONFIG_SYS_TEXT_BASE -
+ 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,
+ (void *)header);
+
+ if (err <= 0)
+ goto end;
+
+ parse_image_header(header);
+
+ /* convert size to sectors - round up */
+ image_size_sectors = (image_size + MMCSD_SECTOR_SIZE - 1) /
+ MMCSD_SECTOR_SIZE;
+
+ /* 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 *)image_load_addr);
+
+end:
+ if (err <= 0) {
+ printf("spl: mmc blk read err - %d\n", err);
+ hang();
+ }
+}
+
+static void mmc_load_image_fat(struct mmc *mmc)
+{
+ s32 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);
+ if (err) {
+ printf("spl: fat register err - %d\n", err);
+ hang();
+ }
+
+ err = file_fat_read(CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME,
+ (u8 *)header, sizeof(struct image_header));
+ if (err <= 0)
+ goto end;
+
+ parse_image_header(header);
+
+ err = file_fat_read(CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME,
+ (u8 *)image_load_addr, 0);
+
+end:
+ if (err <= 0) {
+ printf("spl: error reading image %s, err - %d\n",
+ CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME, err);
+ hang();
+ }
+}
+
+static void mmc_load_image(void)
+{
+ struct mmc *mmc;
+ int err;
+ u32 boot_mode;
+
+ 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");
+ hang();
+ }
+
+ err = mmc_init(mmc);
+ if (err) {
+ printf("spl: mmc init failed: err - %d\n", err);
+ hang();
+ }
+
+ boot_mode = omap_boot_mode();
+ if (boot_mode == MMCSD_MODE_RAW) {
+ debug("boot mode - RAW\n");
+ mmc_load_image_raw(mmc);
+ } else if (boot_mode == MMCSD_MODE_FAT) {
+ debug("boot mode - FAT\n");
+ mmc_load_image_fat(mmc);
+ } else {
+ puts("spl: wrong MMC boot mode\n");
+ hang();
+ }
+}
+
+void jump_to_image_no_args(void)
+{
+ typedef void (*image_entry_noargs_t)(void)__attribute__ ((noreturn));
+ image_entry_noargs_t image_entry =
+ (image_entry_noargs_t) image_entry_point;
+
+ image_entry();
+}
+
+void jump_to_image_no_args(void) __attribute__ ((noreturn));
void board_init_r(gd_t *id, ulong dummy)
{
- for (;;)
- ;
+ u32 boot_device;
+ debug(">>spl:board_init_r()\n");
+
+ timer_init();
+ i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
+
+ boot_device = omap_boot_device();
+ debug("boot device - %d\n", boot_device);
+ switch (boot_device) {
+ case BOOT_DEVICE_MMC1:
+ case BOOT_DEVICE_MMC2:
+ mmc_load_image();
+ break;
+ default:
+ printf("SPL: Un-supported Boot Device - %d!!!\n", boot_device);
+ hang();
+ break;
+ }
+
+ switch (image_os) {
+ case IH_OS_U_BOOT:
+ debug("Jumping to U-Boot\n");
+ jump_to_image_no_args();
+ break;
+ default:
+ puts("Unsupported OS image.. Jumping nevertheless..\n");
+ jump_to_image_no_args();
+ }
}
void preloader_console_init(void)
*/
#include <asm/arch/omap4.h>
+#ifdef CONFIG_SPL_BUILD
+.global save_boot_params
+save_boot_params:
+ /*
+ * See if the rom code passed pointer is valid:
+ * It is not valid if it is not in non-secure SRAM
+ * This may happen if you are booting with the help of
+ * debugger
+ */
+ ldr r2, =NON_SECURE_SRAM_START
+ cmp r2, r0
+ bgt 1f
+ ldr r2, =NON_SECURE_SRAM_END
+ cmp r2, r0
+ blt 1f
+
+ /* Store the boot device in omap4_boot_device */
+ ldr r2, [r0, #BOOT_DEVICE_OFFSET] @ r1 <- value of boot device
+ and r2, #BOOT_DEVICE_MASK
+ ldr r3, =omap4_boot_device
+ str r2, [r3] @ omap4_boot_device <- r1
+
+ /* Store the boot mode (raw/FAT) in omap4_boot_mode */
+ ldr r2, [r0, #DEV_DESC_PTR_OFFSET] @ get the device descriptor ptr
+ ldr r2, [r2, #DEV_DATA_PTR_OFFSET] @ get the pDeviceData ptr
+ ldr r2, [r2, #BOOT_MODE_OFFSET] @ get the boot mode
+ ldr r3, =omap4_boot_mode
+ str r2, [r3]
+1:
+ bx lr
+#endif
.globl lowlevel_init
lowlevel_init:
projects / u-boot / commitdiff