diff options
Diffstat (limited to 'arch/arm/mach-mvebu/spl.c')
| -rw-r--r-- | arch/arm/mach-mvebu/spl.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/arch/arm/mach-mvebu/spl.c b/arch/arm/mach-mvebu/spl.c index 778996eff5..0879873b97 100644 --- 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: @@ -90,7 +105,6 @@ void board_init_f(ulong dummy) /* Setup DDR */ ddr3_init(); -#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 +116,6 @@ 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(); } |
