diff options
Diffstat (limited to 'arch/arm/cpu/armv7')
-rw-r--r-- | arch/arm/cpu/armv7/armada-xp/Makefile | 2 | ||||
-rw-r--r-- | arch/arm/cpu/armv7/armada-xp/lowlevel_spl.S | 62 | ||||
-rw-r--r-- | arch/arm/cpu/armv7/armada-xp/spl.c | 38 |
3 files changed, 102 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/armada-xp/Makefile b/arch/arm/cpu/armv7/armada-xp/Makefile index 885dcee2e1..737159ba12 100644 --- a/arch/arm/cpu/armv7/armada-xp/Makefile +++ b/arch/arm/cpu/armv7/armada-xp/Makefile @@ -5,3 +5,5 @@ # obj-y = cpu.o +obj-$(CONFIG_SPL_BUILD) += spl.o +obj-$(CONFIG_SPL_BUILD) += lowlevel_spl.o diff --git a/arch/arm/cpu/armv7/armada-xp/lowlevel_spl.S b/arch/arm/cpu/armv7/armada-xp/lowlevel_spl.S new file mode 100644 index 0000000000..1febd7bac5 --- /dev/null +++ b/arch/arm/cpu/armv7/armada-xp/lowlevel_spl.S @@ -0,0 +1,62 @@ +/* + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <config.h> +#include <version.h> +#include <linux/linkage.h> + +ENTRY(save_boot_params) + bx lr +ENDPROC(save_boot_params) + +/* + * cache_inv - invalidate Cache line + * r0 - dest + */ + .global cache_inv + .type cache_inv, %function + cache_inv: + + stmfd sp!, {r1-r12} + + mcr p15, 0, r0, c7, c6, 1 + + ldmfd sp!, {r1-r12} + bx lr + + +/* + * flush_l1_v6 - l1 cache clean invalidate + * r0 - dest + */ + .global flush_l1_v6 + .type flush_l1_v6, %function + flush_l1_v6: + + stmfd sp!, {r1-r12} + + mcr p15, 0, r0, c7, c10, 5 /* @ data memory barrier */ + mcr p15, 0, r0, c7, c14, 1 /* @ clean & invalidate D line */ + mcr p15, 0, r0, c7, c10, 4 /* @ data sync barrier */ + + ldmfd sp!, {r1-r12} + bx lr + + +/* + * flush_l1_v7 - l1 cache clean invalidate + * r0 - dest + */ + .global flush_l1_v7 + .type flush_l1_v7, %function + flush_l1_v7: + + stmfd sp!, {r1-r12} + + dmb /* @data memory barrier */ + mcr p15, 0, r0, c7, c14, 1 /* @ clean & invalidate D line */ + dsb /* @data sync barrier */ + + ldmfd sp!, {r1-r12} + bx lr diff --git a/arch/arm/cpu/armv7/armada-xp/spl.c b/arch/arm/cpu/armv7/armada-xp/spl.c new file mode 100644 index 0000000000..402e520ea9 --- /dev/null +++ b/arch/arm/cpu/armv7/armada-xp/spl.c @@ -0,0 +1,38 @@ +/* + * Copyright (C) 2014 Stefan Roese <sr@denx.de> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <spl.h> +#include <asm/io.h> +#include <asm/arch/cpu.h> +#include <asm/arch/soc.h> + +DECLARE_GLOBAL_DATA_PTR; + +u32 spl_boot_device(void) +{ + /* Right now only booting via SPI NOR flash is supported */ + return BOOT_DEVICE_SPI; +} + +void board_init_f(ulong dummy) +{ + /* Set global data pointer */ + gd = &gdata; + + /* Linux expects the internal registers to be at 0xf1000000 */ + arch_cpu_init(); + + preloader_console_init(); + + /* First init the serdes PHY's */ + serdes_phy_config(); + + /* Setup DDR */ + ddr3_init(); + + board_init_r(NULL, 0); +} |