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| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2015-09-22 00:27:41 +0900 |
|---|---|---|
| committer | Masahiro Yamada <yamada.masahiro@socionext.com> | 2015-09-25 00:59:33 +0900 |
| commit | 019df879a93e266ac19f5eb00e4ee605db279b14 (patch) | |
| tree | b11ab5f86fa406775d870b1a51b2cf44fc8f7acc /arch/arm/mach-uniphier/sbc | |
| parent | 28f40d4a4db2b6c701d349fd4fac286d21369de2 (diff) | |
| download | u-boot-019df879a93e266ac19f5eb00e4ee605db279b14.tar.gz | |
ARM: uniphier: add ProXstream2 and PH1-LD6b support
The DDR SDRAM initialization code has not been mainlined yet, but
U-Boot proper should work.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Diffstat (limited to 'arch/arm/mach-uniphier/sbc')
| -rw-r--r-- | arch/arm/mach-uniphier/sbc/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/mach-uniphier/sbc/sbc-proxstream2.c | 48 |
2 files changed, 50 insertions, 0 deletions
diff --git a/arch/arm/mach-uniphier/sbc/Makefile b/arch/arm/mach-uniphier/sbc/Makefile index 2c5fd1a1fc..db622d2034 100644 --- a/arch/arm/mach-uniphier/sbc/Makefile +++ b/arch/arm/mach-uniphier/sbc/Makefile @@ -3,3 +3,5 @@ obj-$(CONFIG_ARCH_UNIPHIER_PH1_LD4) += sbc-ph1-ld4.o obj-$(CONFIG_ARCH_UNIPHIER_PH1_PRO4) += sbc-ph1-pro4.o obj-$(CONFIG_ARCH_UNIPHIER_PH1_SLD8) += sbc-ph1-ld4.o obj-$(CONFIG_ARCH_UNIPHIER_PH1_PRO5) += sbc-ph1-pro4.o +obj-$(CONFIG_ARCH_UNIPHIER_PROXSTREAM2) += sbc-proxstream2.o +obj-$(CONFIG_ARCH_UNIPHIER_PH1_LD6B) += sbc-proxstream2.o diff --git a/arch/arm/mach-uniphier/sbc/sbc-proxstream2.c b/arch/arm/mach-uniphier/sbc/sbc-proxstream2.c new file mode 100644 index 0000000000..9c3aeb7cd0 --- /dev/null +++ b/arch/arm/mach-uniphier/sbc/sbc-proxstream2.c @@ -0,0 +1,48 @@ +/* + * Copyright (C) 2015 Masahiro Yamada <yamada.masahiro@socionext.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <linux/io.h> +#include <mach/init.h> +#include <mach/sbc-regs.h> +#include <mach/sg-regs.h> + +int proxstream2_sbc_init(const struct uniphier_board_data *bd) +{ + /* necessary for ROM boot ?? */ + /* system bus output enable */ + writel(0x17, PC0CTRL); + + /* + * Only CS1 is connected to support card. + * BKSZ[1:0] should be set to "01". + */ + writel(SBCTRL0_SAVEPIN_PERI_VALUE, SBCTRL10); + writel(SBCTRL1_SAVEPIN_PERI_VALUE, SBCTRL11); + writel(SBCTRL2_SAVEPIN_PERI_VALUE, SBCTRL12); + writel(SBCTRL4_SAVEPIN_PERI_VALUE, SBCTRL14); + + if (boot_is_swapped()) { + /* + * Boot Swap On: boot from external NOR/SRAM + * 0x42000000-0x43ffffff is a mirror of 0x40000000-0x41ffffff. + * + * 0x40000000-0x41efffff, 0x42000000-0x43efffff: memory bank + * 0x41f00000-0x41ffffff, 0x43f00000-0x43ffffff: peripherals + */ + writel(0x0000bc01, SBBASE0); + } else { + /* + * Boot Swap Off: boot from mask ROM + * 0x40000000-0x41ffffff: mask ROM + * 0x42000000-0x43efffff: memory bank (31MB) + * 0x43f00000-0x43ffffff: peripherals (1MB) + */ + writel(0x0000be01, SBBASE0); /* dummy */ + writel(0x0200be01, SBBASE1); + } + + return 0; +} |