DECLARE_GLOBAL_DATA_PTR;
+#ifndef CONFIG_SYS_UBOOT_START
+#define CONFIG_SYS_UBOOT_START CONFIG_SYS_TEXT_BASE
+#endif
#ifndef CONFIG_SYS_MONITOR_LEN
#define CONFIG_SYS_MONITOR_LEN (200 * 1024)
#endif
}
#endif
+/*
+ * Weak default function for board specific cleanup/preparation before
+ * Linux boot. Some boards/platforms might not need it, so just provide
+ * an empty stub here.
+ */
+__weak void spl_board_prepare_for_linux(void)
+{
+ /* Nothing to do! */
+}
+
void spl_parse_image_header(const struct image_header *header)
{
u32 header_size = sizeof(struct image_header);
spl_image.name, spl_image.load_addr, spl_image.size);
} else {
/* Signature not found - assume u-boot.bin */
- puts("mkimage signature not found, assuming u-boot.bin ..\n");
debug("mkimage signature not found - ih_magic = %x\n",
header->ih_magic);
/* Let's assume U-Boot will not be more than 200 KB */
spl_image.size = CONFIG_SYS_MONITOR_LEN;
- spl_image.entry_point = CONFIG_SYS_TEXT_BASE;
+ spl_image.entry_point = CONFIG_SYS_UBOOT_START;
spl_image.load_addr = CONFIG_SYS_TEXT_BASE;
spl_image.os = IH_OS_U_BOOT;
spl_image.name = "U-Boot";
}
}
-static void __noreturn jump_to_image_no_args(void)
+__weak void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
{
typedef void __noreturn (*image_entry_noargs_t)(u32 *);
image_entry_noargs_t image_entry =
- (image_entry_noargs_t) spl_image.entry_point;
+ (image_entry_noargs_t) spl_image->entry_point;
- debug("image entry point: 0x%X\n", spl_image.entry_point);
+ 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;
image_entry((u32 *)boot_params_ptr_addr);
}
+#ifdef CONFIG_SPL_RAM_DEVICE
+static void spl_ram_load_image(void)
+{
+ const struct image_header *header;
+
+ /*
+ * Get the header. It will point to an address defined by handoff
+ * which will tell where the image located inside the flash. For
+ * now, it will temporary fixed to address pointed by U-Boot.
+ */
+ header = (struct image_header *)
+ (CONFIG_SYS_TEXT_BASE - sizeof(struct image_header));
+
+ spl_parse_image_header(header);
+}
+#endif
+
void board_init_r(gd_t *dummy1, ulong dummy2)
{
u32 boot_device;
CONFIG_SYS_SPL_MALLOC_SIZE);
#endif
+#ifndef CONFIG_PPC
+ /*
+ * timer_init() does not exist on PPC systems. The timer is initialized
+ * and enabled (decrementer) in interrupt_init() here.
+ */
+ timer_init();
+#endif
+
#ifdef CONFIG_SPL_BOARD_INIT
spl_board_init();
#endif
boot_device = spl_boot_device();
debug("boot device - %d\n", boot_device);
switch (boot_device) {
+#ifdef CONFIG_SPL_RAM_DEVICE
+ case BOOT_DEVICE_RAM:
+ spl_ram_load_image();
+ break;
+#endif
#ifdef CONFIG_SPL_MMC_SUPPORT
case BOOT_DEVICE_MMC1:
case BOOT_DEVICE_MMC2:
case BOOT_DEVICE_SPI:
spl_spi_load_image();
break;
+#endif
+#ifdef CONFIG_SPL_ETH_SUPPORT
+ case BOOT_DEVICE_CPGMAC:
+#ifdef CONFIG_SPL_ETH_DEVICE
+ spl_net_load_image(CONFIG_SPL_ETH_DEVICE);
+#else
+ spl_net_load_image(NULL);
+#endif
+ break;
+#endif
+#ifdef CONFIG_SPL_USBETH_SUPPORT
+ case BOOT_DEVICE_USBETH:
+ spl_net_load_image("usb_ether");
+ break;
#endif
default:
- puts("SPL: Un-supported Boot Device\n");
- debug("Found: %d\n", boot_device);
+ debug("SPL: Un-supported Boot Device\n");
hang();
- break;
}
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();
+ debug("Unsupported OS image.. Jumping nevertheless..\n");
}
+ jump_to_image_no_args(&spl_image);
}
/*
void preloader_console_init(void)
{
gd->bd = &bdata;
- gd->flags |= GD_FLG_RELOC;
gd->baudrate = CONFIG_BAUDRATE;
serial_init(); /* serial communications setup */