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| author | Masahiro Yamada <yamada.m@jp.panasonic.com> | 2015-02-27 02:27:02 +0900 |
|---|---|---|
| committer | Masahiro Yamada <yamada.m@jp.panasonic.com> | 2015-03-01 00:03:06 +0900 |
| commit | ea6de4ac806f7e81960f642dacbaa9c53b30e9ed (patch) | |
| tree | c2c7f0d9707ff1b1c36aed09decbb8fd1b47c922 /arch/arm/mach-uniphier/ph1-ld4/sbc_init.c | |
| parent | 53c45d4e1ec90cf12e6817992c303187afc16123 (diff) | |
| download | talos-obmc-uboot-ea6de4ac806f7e81960f642dacbaa9c53b30e9ed.tar.gz talos-obmc-uboot-ea6de4ac806f7e81960f642dacbaa9c53b30e9ed.zip | |
ARM: UniPhier: support 1CS support card for all the UniPhier SoCs
Two support card variants are used with UniPhier reference boards:
- 1 chip select support card (original CPLD)
- 3 chip selects support card (ARIMA-compatible CPLD)
Currently, the former is only supported on PH1-Pro4, but it can be
expanded to PH1-LD4, PH1-sLD8 with a little code change.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Diffstat (limited to 'arch/arm/mach-uniphier/ph1-ld4/sbc_init.c')
| -rw-r--r-- | arch/arm/mach-uniphier/ph1-ld4/sbc_init.c | 56 |
1 files changed, 28 insertions, 28 deletions
diff --git a/arch/arm/mach-uniphier/ph1-ld4/sbc_init.c b/arch/arm/mach-uniphier/ph1-ld4/sbc_init.c index 374a8c0680..00f84614f6 100644 --- a/arch/arm/mach-uniphier/ph1-ld4/sbc_init.c +++ b/arch/arm/mach-uniphier/ph1-ld4/sbc_init.c @@ -19,32 +19,32 @@ void sbc_init(void) tmp &= 0xfffffcff; writel(tmp, PC0CTRL); - /* XECS1: sub/boot memory (boot swap = off/on) */ - writel(SBCTRL0_SAVEPIN_MEM_VALUE, SBCTRL10); - writel(SBCTRL1_SAVEPIN_MEM_VALUE, SBCTRL11); - writel(SBCTRL2_SAVEPIN_MEM_VALUE, SBCTRL12); - writel(SBCTRL4_SAVEPIN_MEM_VALUE, SBCTRL14); - - /* XECS0: boot/sub memory (boot swap = off/on) */ - writel(SBCTRL0_SAVEPIN_MEM_VALUE, SBCTRL00); - writel(SBCTRL1_SAVEPIN_MEM_VALUE, SBCTRL01); - writel(SBCTRL2_SAVEPIN_MEM_VALUE, SBCTRL02); - writel(SBCTRL4_SAVEPIN_MEM_VALUE, SBCTRL04); - - /* XECS3: peripherals */ - writel(SBCTRL0_SAVEPIN_PERI_VALUE, SBCTRL30); - writel(SBCTRL1_SAVEPIN_PERI_VALUE, SBCTRL31); - writel(SBCTRL2_SAVEPIN_PERI_VALUE, SBCTRL32); - writel(SBCTRL4_SAVEPIN_PERI_VALUE, SBCTRL34); - - /* base address regsiters */ - writel(0x0000bc01, SBBASE0); - writel(0x0400bc01, SBBASE1); - writel(0x0800bf01, SBBASE3); - - /* enable access to sub memory when boot swap is on */ - if (boot_is_swapped()) - sg_set_pinsel(155, 1); /* PORT24 -> XECS0 */ - - sg_set_pinsel(156, 1); /* PORT25 -> XECS3 */ + /* + * 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 + * 0x02000000-0x03ffffff is a mirror of 0x00000000-0x01ffffff. + * + * 0x00000000-0x01efffff, 0x02000000-0x03efffff: memory bank + * 0x01f00000-0x01ffffff, 0x03f00000-0x03ffffff: peripherals + */ + writel(0x0000bc01, SBBASE0); + } else { + /* + * Boot Swap Off: boot from mask ROM + * 0x00000000-0x01ffffff: mask ROM + * 0x02000000-0x03efffff: memory bank (31MB) + * 0x03f00000-0x03ffffff: peripherals (1MB) + */ + writel(0x0000be01, SBBASE0); /* dummy */ + writel(0x0200be01, SBBASE1); + } } |
