diff options
Diffstat (limited to 'arch/arm/mach-mvebu')
| -rw-r--r-- | arch/arm/mach-mvebu/Kconfig | 31 | ||||
| -rw-r--r-- | arch/arm/mach-mvebu/cpu.c | 31 | ||||
| -rw-r--r-- | arch/arm/mach-mvebu/include/mach/cpu.h | 2 | ||||
| -rw-r--r-- | arch/arm/mach-mvebu/include/mach/soc.h | 2 | ||||
| -rw-r--r-- | arch/arm/mach-mvebu/lowlevel_spl.S | 16 | ||||
| -rw-r--r-- | arch/arm/mach-mvebu/spl.c | 26 |
6 files changed, 92 insertions, 16 deletions
diff --git a/arch/arm/mach-mvebu/Kconfig b/arch/arm/mach-mvebu/Kconfig new file mode 100644 index 0000000000..79ff0e8278 --- /dev/null +++ b/arch/arm/mach-mvebu/Kconfig @@ -0,0 +1,31 @@ +if ARCH_MVEBU + +choice + prompt "Marvell MVEBU (Armada XP/38x) board select" + optional + +config TARGET_DB_88F6820_GP + bool "Support DB-88F6820-GP" + +config TARGET_DB_MV784MP_GP + bool "Support db-mv784mp-gp" + +config TARGET_MAXBCM + bool "Support maxbcm" + +endchoice + +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/cpu.c b/arch/arm/mach-mvebu/cpu.c index efd4d04ea8..895ad929b1 100644 --- a/arch/arm/mach-mvebu/cpu.c +++ b/arch/arm/mach-mvebu/cpu.c @@ -27,6 +27,14 @@ static struct mbus_win windows[] = { CPU_TARGET_DEVICEBUS_BOOTROM_SPI, CPU_ATTR_BOOTROM }, }; +void lowlevel_init(void) +{ + /* + * Dummy implementation, we only need LOWLEVEL_INIT + * on Armada to configure CP15 in start.S / cpu_init_cp15() + */ +} + void reset_cpu(unsigned long ignored) { struct mvebu_system_registers *reg = @@ -214,7 +222,10 @@ static void setup_usb_phys(void) int arch_cpu_init(void) { -#if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_ARMADA_38X) +#if !defined(CONFIG_SPL_BUILD) + struct pl310_regs *const pl310 = + (struct pl310_regs *)CONFIG_SYS_PL310_BASE; + /* * Only with disabled MMU its possible to switch the base * register address on Armada 38x. Without this the SDRAM @@ -234,18 +245,14 @@ int arch_cpu_init(void) * configured the internal register base to the value used * in the macros / defines in the U-Boot header (soc.h). */ - if (mvebu_soc_family() == MVEBU_SOC_A38X) { - struct pl310_regs *const pl310 = - (struct pl310_regs *)CONFIG_SYS_PL310_BASE; - /* - * To fully release / unlock this area from cache, we need - * to flush all caches and disable the L2 cache. - */ - icache_disable(); - dcache_disable(); - clrbits_le32(&pl310->pl310_ctrl, L2X0_CTRL_EN); - } + /* + * To fully release / unlock this area from cache, we need + * to flush all caches and disable the L2 cache. + */ + icache_disable(); + dcache_disable(); + clrbits_le32(&pl310->pl310_ctrl, L2X0_CTRL_EN); #endif /* diff --git a/arch/arm/mach-mvebu/include/mach/cpu.h b/arch/arm/mach-mvebu/include/mach/cpu.h index 6fa41736e2..5e8bf0c4ce 100644 --- a/arch/arm/mach-mvebu/include/mach/cpu.h +++ b/arch/arm/mach-mvebu/include/mach/cpu.h @@ -119,6 +119,8 @@ int mvebu_mbus_probe(struct mbus_win windows[], int count); int mvebu_soc_family(void); u32 mvebu_get_nand_clock(void); +void return_to_bootrom(void); + int mv_sdh_init(unsigned long regbase, u32 max_clk, u32 min_clk, u32 quirks); /* diff --git a/arch/arm/mach-mvebu/include/mach/soc.h b/arch/arm/mach-mvebu/include/mach/soc.h index 02c21bcded..22abde080e 100644 --- a/arch/arm/mach-mvebu/include/mach/soc.h +++ b/arch/arm/mach-mvebu/include/mach/soc.h @@ -31,7 +31,7 @@ /* SOC specific definations */ #define INTREG_BASE 0xd0000000 #define INTREG_BASE_ADDR_REG (INTREG_BASE + 0x20080) -#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SYS_MVEBU_DDR_A38X) +#if defined(CONFIG_SPL_BUILD) /* * On A38x switching the regs base address without running from * SDRAM doesn't seem to work. So let the SPL still use the diff --git a/arch/arm/mach-mvebu/lowlevel_spl.S b/arch/arm/mach-mvebu/lowlevel_spl.S index 69da7fe7af..2e2181ecea 100644 --- a/arch/arm/mach-mvebu/lowlevel_spl.S +++ b/arch/arm/mach-mvebu/lowlevel_spl.S @@ -5,10 +5,26 @@ #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 + str sp, [r12] b save_boot_params_ret ENDPROC(save_boot_params) +ENTRY(return_to_bootrom) + ldr r12, =CONFIG_SPL_BOOTROM_SAVE + ldr sp, [r12] + 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 * r0 - dest diff --git a/arch/arm/mach-mvebu/spl.c b/arch/arm/mach-mvebu/spl.c index af61ded42e..0ab729aa5d 100644 --- a/arch/arm/mach-mvebu/spl.c +++ b/arch/arm/mach-mvebu/spl.c @@ -31,11 +31,18 @@ u32 spl_boot_mode(void) void board_init_f(ulong dummy) { - /* Set global data pointer */ - gd = &gdata; +#ifndef CONFIG_MVEBU_BOOTROM_UARTBOOT + /* + * Only call arch_cpu_init() when not returning to the + * Marvell BootROM, which is done when booting via + * the xmodem protocol (kwboot tool). Otherwise the + * internal register will get remapped and the BootROM + * can't continue to run correctly. + */ /* Linux expects the internal registers to be at 0xf1000000 */ arch_cpu_init(); +#endif /* * Pin muxing needs to be done before UART output, since @@ -54,5 +61,18 @@ void board_init_f(ulong dummy) /* Setup DDR */ ddr3_init(); - board_init_r(NULL, 0); +#ifdef CONFIG_MVEBU_BOOTROM_UARTBOOT + /* + * Return to the BootROM to continue the Marvell xmodem + * UART boot protocol. As initiated by the kwboot tool. + * + * This can only be done by the BootROM and not by the + * U-Boot SPL infrastructure, since the beginning of the + * image is already read and interpreted by the BootROM. + * SPL has no chance to receive this information. So we + * need to return to the BootROM to enable this xmodem + * UART download. + */ + return_to_bootrom(); +#endif } |