diff options
Diffstat (limited to 'arch/arm/mach-mvebu')
| -rw-r--r-- | arch/arm/mach-mvebu/Kconfig | 10 | ||||
| -rw-r--r-- | arch/arm/mach-mvebu/include/mach/soc.h | 8 | ||||
| -rw-r--r-- | arch/arm/mach-mvebu/lowlevel_spl.S | 6 | ||||
| -rw-r--r-- | arch/arm/mach-mvebu/spl.c | 20 |
4 files changed, 24 insertions, 20 deletions
diff --git a/arch/arm/mach-mvebu/Kconfig b/arch/arm/mach-mvebu/Kconfig index d96b2ae540..a15c4b7669 100644 --- a/arch/arm/mach-mvebu/Kconfig +++ b/arch/arm/mach-mvebu/Kconfig @@ -48,14 +48,4 @@ config SYS_VENDOR config SYS_SOC default "mvebu" -config MVEBU_BOOTROM_UARTBOOT - bool "Use kwboot to boot via BootROM xmodem protocol" - help - This option provides support for booting via the Marvell - xmodem protocol, used by the kwboot tool. - - Please don't forget to configure the boot device in - the board specific kwbimage.cfg file this way: - BOOT_FROM uart - endif diff --git a/arch/arm/mach-mvebu/include/mach/soc.h b/arch/arm/mach-mvebu/include/mach/soc.h index e27a36db1c..c696fc6cec 100644 --- a/arch/arm/mach-mvebu/include/mach/soc.h +++ b/arch/arm/mach-mvebu/include/mach/soc.h @@ -96,6 +96,12 @@ #define MVCPU_WIN_ENABLE CPU_WIN_ENABLE #define MVCPU_WIN_DISABLE CPU_WIN_DISABLE +/* BootROM error register (also includes some status infos) */ +#define CONFIG_BOOTROM_ERR_REG (MVEBU_REGISTER(0x182d0)) +#define BOOTROM_ERR_MODE_OFFS 28 +#define BOOTROM_ERR_MODE_MASK (0xf << BOOTROM_ERR_MODE_OFFS) +#define BOOTROM_ERR_MODE_UART 0x6 + #if defined(CONFIG_ARMADA_38X) /* SAR values for Armada 38x */ #define CONFIG_SAR_REG (MVEBU_REGISTER(0x18600)) @@ -106,7 +112,7 @@ #define SAR_BOOT_DEVICE_MASK (0x1f << SAR_BOOT_DEVICE_OFFS) #define BOOT_DEV_SEL_OFFS 4 -#define BOOT_DEV_SEL_MASK (0x1f << BOOT_DEV_SEL_OFFS) +#define BOOT_DEV_SEL_MASK (0x3f << BOOT_DEV_SEL_OFFS) #define BOOT_FROM_UART 0x28 #define BOOT_FROM_SPI 0x32 diff --git a/arch/arm/mach-mvebu/lowlevel_spl.S b/arch/arm/mach-mvebu/lowlevel_spl.S index 2e2181ecea..49e0b906d5 100644 --- a/arch/arm/mach-mvebu/lowlevel_spl.S +++ b/arch/arm/mach-mvebu/lowlevel_spl.S @@ -5,7 +5,6 @@ #include <config.h> #include <linux/linkage.h> -#ifdef CONFIG_MVEBU_BOOTROM_UARTBOOT ENTRY(save_boot_params) stmfd sp!, {r0 - r12, lr} /* @ save registers on stack */ ldr r12, =CONFIG_SPL_BOOTROM_SAVE @@ -19,11 +18,6 @@ ENTRY(return_to_bootrom) mov r0, #0x0 /* @ return value: 0x0 NO_ERR */ ldmfd sp!, {r0 - r12, pc} /* @ restore regs and return */ ENDPROC(return_to_bootrom) -#else -ENTRY(save_boot_params) - b save_boot_params_ret -ENDPROC(save_boot_params) -#endif /* * cache_inv - invalidate Cache line 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(); } |
