armv7: add reset timeout to identify_nand_chip

[u-boot] / arch / arm / mach-mvebu / spl.c

diff --git a/arch/arm/mach-mvebu/spl.c b/arch/arm/mach-mvebu/spl.c
index 778996eff54b78e3f2d85325a7a91246b46e0649..e1c9cdba5041b5c1a2b90a947d608aa5090979c4 100644 (file)
--- a/arch/arm/mach-mvebu/spl.c
+++ b/arch/arm/mach-mvebu/spl.c
@@ -20,8 +20,23 @@ static u32 get_boot_device(void)
        u32 val;
        u32 boot_device;
 
+       /*
+        * First check, if UART boot-mode is active. This can only
+        * be done, via the bootrom error register. Here the
+        * MSB marks if the UART mode is active.
+        */
+       val = readl(CONFIG_BOOTROM_ERR_REG);
+       boot_device = (val & BOOTROM_ERR_MODE_MASK) >> BOOTROM_ERR_MODE_OFFS;
+       debug("BOOTROM_REG=0x%08x boot_device=0x%x\n", val, boot_device);
+       if (boot_device == BOOTROM_ERR_MODE_UART)
+               return BOOT_DEVICE_UART;
+
+       /*
+        * Now check the SAR register for the strapped boot-device
+        */
        val = readl(CONFIG_SAR_REG);    /* SAR - Sample At Reset */
        boot_device = (val & BOOT_DEV_SEL_MASK) >> BOOT_DEV_SEL_OFFS;
+       debug("SAR_REG=0x%08x boot_device=0x%x\n", val, boot_device);
        switch (boot_device) {
 #ifdef CONFIG_SPL_MMC_SUPPORT
        case BOOT_FROM_MMC:
@@ -42,7 +57,7 @@ u32 spl_boot_device(void)
 }
 
 #ifdef CONFIG_SPL_MMC_SUPPORT
-u32 spl_boot_mode(void)
+u32 spl_boot_mode(const u32 boot_device)
 {
        return MMCSD_MODE_RAW;
 }
@@ -84,13 +99,15 @@ void board_init_f(ulong dummy)
 
        timer_init();
 
+       /* Armada 375 does not support SerDes and DDR3 init yet */
+#if !defined(CONFIG_ARMADA_375)
        /* First init the serdes PHY's */
        serdes_phy_config();
 
        /* Setup DDR */
        ddr3_init();
+#endif
 
-#ifdef CONFIG_MVEBU_BOOTROM_UARTBOOT
        /*
         * Return to the BootROM to continue the Marvell xmodem
         * UART boot protocol. As initiated by the kwboot tool.
@@ -102,6 +119,6 @@ void board_init_f(ulong dummy)
         * need to return to the BootROM to enable this xmodem
         * UART download.
         */
-       return_to_bootrom();
-#endif
+       if (get_boot_device() == BOOT_DEVICE_UART)
+               return_to_bootrom();
 }