Merge branch 'master' of git://git.denx.de/u-boot-fsl-qoriq
[oweals/u-boot.git] / common / spl / spl.c
index cd75bbc4ced967b96d09aad4f5311a65ee207ec7..6e6dee7ec9b1d9b8ccd2cee17239557c88a28250 100644 (file)
@@ -101,10 +101,22 @@ void spl_parse_image_header(const struct image_header *header)
                        (int)sizeof(spl_image.name), spl_image.name,
                        spl_image.load_addr, spl_image.size);
        } else {
+#ifdef CONFIG_SPL_PANIC_ON_RAW_IMAGE
+               /*
+                * CONFIG_SPL_PANIC_ON_RAW_IMAGE is defined when the
+                * code which loads images in SPL cannot guarantee that
+                * absolutely all read errors will be reported.
+                * An example is the LPC32XX MLC NAND driver, which
+                * will consider that a completely unreadable NAND block
+                * is bad, and thus should be skipped silently.
+                */
+               panic("** no mkimage signature but raw image not supported");
+#else
                /* Signature not found - assume u-boot.bin */
                debug("mkimage signature not found - ih_magic = %x\n",
                        header->ih_magic);
                spl_set_header_raw_uboot();
+#endif
        }
 }
 
@@ -113,14 +125,14 @@ __weak void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
        typedef void __noreturn (*image_entry_noargs_t)(void);
 
        image_entry_noargs_t image_entry =
-                       (image_entry_noargs_t) spl_image->entry_point;
+               (image_entry_noargs_t)(unsigned long)spl_image->entry_point;
 
        debug("image entry point: 0x%X\n", spl_image->entry_point);
        image_entry();
 }
 
 #ifdef CONFIG_SPL_RAM_DEVICE
-static void spl_ram_load_image(void)
+static int spl_ram_load_image(void)
 {
        const struct image_header *header;
 
@@ -133,111 +145,239 @@ static void spl_ram_load_image(void)
                (CONFIG_SYS_TEXT_BASE - sizeof(struct image_header));
 
        spl_parse_image_header(header);
+
+       return 0;
 }
 #endif
 
-void board_init_r(gd_t *dummy1, ulong dummy2)
+int spl_init(void)
 {
-       u32 boot_device;
-       debug(">>spl:board_init_r()\n");
+       int ret;
 
-#if defined(CONFIG_SYS_SPL_MALLOC_START)
-       mem_malloc_init(CONFIG_SYS_SPL_MALLOC_START,
-                       CONFIG_SYS_SPL_MALLOC_SIZE);
-       gd->flags |= GD_FLG_FULL_MALLOC_INIT;
-#elif defined(CONFIG_SYS_MALLOC_F_LEN)
-       gd->malloc_limit = gd->malloc_base + CONFIG_SYS_MALLOC_F_LEN;
+       debug("spl_init()\n");
+#if defined(CONFIG_SYS_MALLOC_F_LEN)
+       gd->malloc_limit = CONFIG_SYS_MALLOC_F_LEN;
        gd->malloc_ptr = 0;
 #endif
-#ifdef CONFIG_SPL_DM
-       dm_init_and_scan(true);
+       if (CONFIG_IS_ENABLED(OF_CONTROL)) {
+               ret = fdtdec_setup();
+               if (ret) {
+                       debug("fdtdec_setup() returned error %d\n", ret);
+                       return ret;
+               }
+       }
+       if (IS_ENABLED(CONFIG_SPL_DM)) {
+               ret = dm_init_and_scan(true);
+               if (ret) {
+                       debug("dm_init_and_scan() returned error %d\n", ret);
+                       return ret;
+               }
+       }
+       gd->flags |= GD_FLG_SPL_INIT;
+
+       return 0;
+}
+
+#ifndef BOOT_DEVICE_NONE
+#define BOOT_DEVICE_NONE 0xdeadbeef
 #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();
+static u32 spl_boot_list[] = {
+       BOOT_DEVICE_NONE,
+       BOOT_DEVICE_NONE,
+       BOOT_DEVICE_NONE,
+       BOOT_DEVICE_NONE,
+       BOOT_DEVICE_NONE,
+};
+
+__weak void board_boot_order(u32 *spl_boot_list)
+{
+       spl_boot_list[0] = spl_boot_device();
+}
+
+#ifdef CONFIG_SPL_BOARD_LOAD_IMAGE
+__weak void spl_board_announce_boot_device(void) { }
 #endif
 
-#ifdef CONFIG_SPL_BOARD_INIT
-       spl_board_init();
+#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
+struct boot_device_name {
+       u32 boot_dev;
+       const char *name;
+};
+
+struct boot_device_name boot_name_table[] = {
+#ifdef CONFIG_SPL_RAM_DEVICE
+       { BOOT_DEVICE_RAM, "RAM" },
+#endif
+#ifdef CONFIG_SPL_MMC_SUPPORT
+       { BOOT_DEVICE_MMC1, "MMC" },
+       { BOOT_DEVICE_MMC2, "MMC" },
+       { BOOT_DEVICE_MMC2_2, "MMC" },
+#endif
+#ifdef CONFIG_SPL_NAND_SUPPORT
+       { BOOT_DEVICE_NAND, "NAND" },
+#endif
+#ifdef CONFIG_SPL_ONENAND_SUPPORT
+       { BOOT_DEVICE_ONENAND, "OneNAND" },
+#endif
+#ifdef CONFIG_SPL_NOR_SUPPORT
+       { BOOT_DEVICE_NOR, "NOR" },
+#endif
+#ifdef CONFIG_SPL_YMODEM_SUPPORT
+       { BOOT_DEVICE_UART, "UART" },
 #endif
+#ifdef CONFIG_SPL_SPI_SUPPORT
+       { BOOT_DEVICE_SPI, "SPI" },
+#endif
+#ifdef CONFIG_SPL_ETH_SUPPORT
+#ifdef CONFIG_SPL_ETH_DEVICE
+       { BOOT_DEVICE_CPGMAC, "eth device" },
+#else
+       { BOOT_DEVICE_CPGMAC, "net" },
+#endif
+#endif
+#ifdef CONFIG_SPL_USBETH_SUPPORT
+       { BOOT_DEVICE_USBETH, "USB eth" },
+#endif
+#ifdef CONFIG_SPL_USB_SUPPORT
+       { BOOT_DEVICE_USB, "USB" },
+#endif
+#ifdef CONFIG_SPL_SATA_SUPPORT
+       { BOOT_DEVICE_SATA, "SATA" },
+#endif
+       /* Keep this entry last */
+       { BOOT_DEVICE_NONE, "unknown boot device" },
+};
 
-       boot_device = spl_boot_device();
-       debug("boot device - %d\n", boot_device);
+static void announce_boot_device(u32 boot_device)
+{
+       int i;
+
+       puts("Trying to boot from ");
+
+#ifdef CONFIG_SPL_BOARD_LOAD_IMAGE
+       if (boot_device == BOOT_DEVICE_BOARD) {
+               spl_board_announce_boot_device();
+               puts("\n");
+               return;
+       }
+#endif
+       for (i = 0; i < ARRAY_SIZE(boot_name_table) - 1; i++) {
+               if (boot_name_table[i].boot_dev == boot_device)
+                       break;
+       }
+
+       printf("%s\n", boot_name_table[i].name);
+}
+#else
+static inline void announce_boot_device(u32 boot_device) { }
+#endif
+
+static int spl_load_image(u32 boot_device)
+{
        switch (boot_device) {
 #ifdef CONFIG_SPL_RAM_DEVICE
        case BOOT_DEVICE_RAM:
-               spl_ram_load_image();
-               break;
+               return spl_ram_load_image();
 #endif
 #ifdef CONFIG_SPL_MMC_SUPPORT
        case BOOT_DEVICE_MMC1:
        case BOOT_DEVICE_MMC2:
        case BOOT_DEVICE_MMC2_2:
-               spl_mmc_load_image();
-               break;
+               return spl_mmc_load_image(boot_device);
 #endif
 #ifdef CONFIG_SPL_NAND_SUPPORT
        case BOOT_DEVICE_NAND:
-               spl_nand_load_image();
-               break;
+               return spl_nand_load_image();
 #endif
 #ifdef CONFIG_SPL_ONENAND_SUPPORT
        case BOOT_DEVICE_ONENAND:
-               spl_onenand_load_image();
-               break;
+               return spl_onenand_load_image();
 #endif
 #ifdef CONFIG_SPL_NOR_SUPPORT
        case BOOT_DEVICE_NOR:
-               spl_nor_load_image();
-               break;
+               return spl_nor_load_image();
 #endif
 #ifdef CONFIG_SPL_YMODEM_SUPPORT
        case BOOT_DEVICE_UART:
-               spl_ymodem_load_image();
-               break;
+               return spl_ymodem_load_image();
 #endif
 #ifdef CONFIG_SPL_SPI_SUPPORT
        case BOOT_DEVICE_SPI:
-               spl_spi_load_image();
-               break;
+               return spl_spi_load_image();
 #endif
 #ifdef CONFIG_SPL_ETH_SUPPORT
        case BOOT_DEVICE_CPGMAC:
 #ifdef CONFIG_SPL_ETH_DEVICE
-               spl_net_load_image(CONFIG_SPL_ETH_DEVICE);
+               return spl_net_load_image(CONFIG_SPL_ETH_DEVICE);
 #else
-               spl_net_load_image(NULL);
+               return spl_net_load_image(NULL);
 #endif
-               break;
 #endif
 #ifdef CONFIG_SPL_USBETH_SUPPORT
        case BOOT_DEVICE_USBETH:
-               spl_net_load_image("usb_ether");
-               break;
+               return spl_net_load_image("usb_ether");
 #endif
 #ifdef CONFIG_SPL_USB_SUPPORT
        case BOOT_DEVICE_USB:
-               spl_usb_load_image();
-               break;
+               return spl_usb_load_image();
 #endif
 #ifdef CONFIG_SPL_SATA_SUPPORT
        case BOOT_DEVICE_SATA:
-               spl_sata_load_image();
-               break;
+               return spl_sata_load_image();
 #endif
 #ifdef CONFIG_SPL_BOARD_LOAD_IMAGE
        case BOOT_DEVICE_BOARD:
-               spl_board_load_image();
-               break;
+               return spl_board_load_image();
 #endif
        default:
 #if defined(CONFIG_SPL_SERIAL_SUPPORT) && defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
                puts("SPL: Unsupported Boot Device!\n");
 #endif
+               return -ENODEV;
+       }
+
+       return -EINVAL;
+}
+
+void board_init_r(gd_t *dummy1, ulong dummy2)
+{
+       int i;
+
+       debug(">>spl:board_init_r()\n");
+
+#if defined(CONFIG_SYS_SPL_MALLOC_START)
+       mem_malloc_init(CONFIG_SYS_SPL_MALLOC_START,
+                       CONFIG_SYS_SPL_MALLOC_SIZE);
+       gd->flags |= GD_FLG_FULL_MALLOC_INIT;
+#endif
+       if (!(gd->flags & GD_FLG_SPL_INIT)) {
+               if (spl_init())
+                       hang();
+       }
+#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
+
+       board_boot_order(spl_boot_list);
+       for (i = 0; i < ARRAY_SIZE(spl_boot_list) &&
+                       spl_boot_list[i] != BOOT_DEVICE_NONE; i++) {
+               announce_boot_device(spl_boot_list[i]);
+               if (!spl_load_image(spl_boot_list[i]))
+                       break;
+       }
+
+       if (i == ARRAY_SIZE(spl_boot_list) ||
+           spl_boot_list[i] == BOOT_DEVICE_NONE) {
+               puts("SPL: failed to boot from all boot devices\n");
                hang();
        }
 
@@ -259,6 +399,7 @@ void board_init_r(gd_t *dummy1, ulong dummy2)
              gd->malloc_ptr / 1024);
 #endif
 
+       debug("loaded - jumping to U-Boot...");
        jump_to_image_no_args(&spl_image);
 }
 
@@ -302,14 +443,23 @@ ulong spl_relocate_stack_gd(void)
        ulong ptr;
 
        /* Get stack position: use 8-byte alignment for ABI compliance */
-       ptr = CONFIG_SPL_STACK_R - sizeof(gd_t);
+       ptr = CONFIG_SPL_STACK_R_ADDR - sizeof(gd_t);
        ptr &= ~7;
        new_gd = (gd_t *)ptr;
        memcpy(new_gd, (void *)gd, sizeof(gd_t));
        gd = new_gd;
 
-       /* Clear the BSS. */
-       memset(__bss_start, 0, __bss_end - __bss_start);
+#ifdef CONFIG_SPL_SYS_MALLOC_SIMPLE
+       if (CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN) {
+               if (!(gd->flags & GD_FLG_SPL_INIT))
+                       panic_str("spl_init must be called before heap reloc");
+
+               ptr -= CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN;
+               gd->malloc_base = ptr;
+               gd->malloc_limit = CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN;
+               gd->malloc_ptr = 0;
+       }
+#endif
 
        return ptr;
 #else