#include <asm/u-boot.h>
#include <asm/utils.h>
#include <asm/arch/sys_proto.h>
+#include <nand.h>
#include <mmc.h>
#include <fat.h>
-#include <timestamp_autogenerated.h>
-#include <version_autogenerated.h>
+#include <version.h>
#include <asm/omap_common.h>
#include <asm/arch/mmc_host_def.h>
#include <i2c.h>
#include <image.h>
+#include <malloc.h>
+#include <linux/compiler.h>
DECLARE_GLOBAL_DATA_PTR;
+u32* boot_params_ptr = NULL;
+struct spl_image_info spl_image;
+
/* 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)
+/*
+ * Default function to determine if u-boot or the OS should
+ * be started. This implementation always returns 1.
+ *
+ * Please implement your own board specific funcion to do this.
+ *
+ * RETURN
+ * 0 to not start u-boot
+ * positive if u-boot should start
+ */
+#ifdef CONFIG_SPL_OS_BOOT
+__weak int spl_start_uboot(void)
{
- switch (omap_boot_device()) {
- case BOOT_DEVICE_MMC1:
- omap_mmc_init(0);
- break;
- case BOOT_DEVICE_MMC2:
- omap_mmc_init(1);
- break;
- }
- return 0;
+ printf("SPL: Please implement spl_start_uboot() for your board\n");
+ printf("SPL: Direct Linux boot not active!\n");
+ return 1;
}
#endif
-static void parse_image_header(const struct image_header *header)
+void spl_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);
+ spl_image.size = __be32_to_cpu(header->ih_size) + header_size;
+ spl_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;
+ spl_image.load_addr = spl_image.entry_point - header_size;
+ spl_image.os = header->ih_os;
+ spl_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);
+ spl_image.name, spl_image.load_addr, spl_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");
+ debug("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();
+ spl_image.size = 200 * 1024;
+ spl_image.entry_point = CONFIG_SYS_TEXT_BASE;
+ spl_image.load_addr = CONFIG_SYS_TEXT_BASE;
+ spl_image.os = IH_OS_U_BOOT;
+ spl_image.name = "U-Boot";
}
}
-static void mmc_load_image(void)
+/*
+ * This function jumps to an image with argument. Normally an FDT or ATAGS
+ * image.
+ * arg: Pointer to paramter image in RAM
+ */
+#ifdef CONFIG_SPL_OS_BOOT
+static void __noreturn jump_to_image_linux(void *arg)
{
- 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();
- }
+ debug("Entering kernel arg pointer: 0x%p\n", arg);
+ typedef void (*image_entry_arg_t)(int, int, void *)
+ __attribute__ ((noreturn));
+ image_entry_arg_t image_entry =
+ (image_entry_arg_t) spl_image.entry_point;
+ cleanup_before_linux();
+ image_entry(0, CONFIG_MACH_TYPE, arg);
}
+#endif
-void jump_to_image_no_args(void)
+static void __noreturn jump_to_image_no_args(void)
{
- typedef void (*image_entry_noargs_t)(void)__attribute__ ((noreturn));
+ typedef void __noreturn (*image_entry_noargs_t)(u32 *);
image_entry_noargs_t image_entry =
- (image_entry_noargs_t) image_entry_point;
+ (image_entry_noargs_t) spl_image.entry_point;
- image_entry();
+ debug("image entry point: 0x%X\n", spl_image.entry_point);
+ /* Pass the saved boot_params from rom code */
+#if defined(CONFIG_VIRTIO) || defined(CONFIG_ZEBU)
+ image_entry = (image_entry_noargs_t)0x80100000;
+#endif
+ u32 boot_params_ptr_addr = (u32)&boot_params_ptr;
+ image_entry((u32 *)boot_params_ptr_addr);
}
-void jump_to_image_no_args(void) __attribute__ ((noreturn));
void board_init_r(gd_t *id, ulong dummy)
{
u32 boot_device;
debug(">>spl:board_init_r()\n");
- timer_init();
- i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
+ mem_malloc_init(CONFIG_SYS_SPL_MALLOC_START,
+ CONFIG_SYS_SPL_MALLOC_SIZE);
+
+#ifdef CONFIG_SPL_BOARD_INIT
+ spl_board_init();
+#endif
boot_device = omap_boot_device();
debug("boot device - %d\n", boot_device);
switch (boot_device) {
+#ifdef CONFIG_SPL_MMC_SUPPORT
case BOOT_DEVICE_MMC1:
case BOOT_DEVICE_MMC2:
- mmc_load_image();
+ case BOOT_DEVICE_MMC2_2:
+ spl_mmc_load_image();
+ break;
+#endif
+#ifdef CONFIG_SPL_NAND_SUPPORT
+ case BOOT_DEVICE_NAND:
+ spl_nand_load_image();
+ break;
+#endif
+#ifdef CONFIG_SPL_YMODEM_SUPPORT
+ case BOOT_DEVICE_UART:
+ spl_ymodem_load_image();
break;
+#endif
default:
printf("SPL: Un-supported Boot Device - %d!!!\n", boot_device);
hang();
break;
}
- switch (image_os) {
+ switch (spl_image.os) {
case IH_OS_U_BOOT:
debug("Jumping to U-Boot\n");
jump_to_image_no_args();
break;
+#ifdef CONFIG_SPL_OS_BOOT
+ case IH_OS_LINUX:
+ debug("Jumping to Linux\n");
+ spl_board_prepare_for_linux();
+ jump_to_image_linux((void *)CONFIG_SYS_SPL_ARGS_ADDR);
+ break;
+#endif
default:
puts("Unsupported OS image.. Jumping nevertheless..\n");
jump_to_image_no_args();
}
}
+/* This requires UART clocks to be enabled */
void preloader_console_init(void)
{
const char *u_boot_rev = U_BOOT_VERSION;
- char rev_string_buffer[50];
gd = &gdata;
gd->bd = &bdata;
gd->flags |= GD_FLG_RELOC;
gd->baudrate = CONFIG_BAUDRATE;
- setup_clocks_for_console();
serial_init(); /* serial communications setup */
+ gd->have_console = 1;
+
/* Avoid a second "U-Boot" coming from this string */
u_boot_rev = &u_boot_rev[7];
printf("\nU-Boot SPL %s (%s - %s)\n", u_boot_rev, U_BOOT_DATE,
U_BOOT_TIME);
- omap_rev_string(rev_string_buffer);
- printf("Texas Instruments %s\n", rev_string_buffer);
+ omap_rev_string();
+}
+
+void __weak omap_rev_string()
+{
+ printf("Texas Instruments Revision detection unimplemented\n");
}
projects / karo-tx-uboot.git / blobdiff