From ea6de4ac806f7e81960f642dacbaa9c53b30e9ed Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Fri, 27 Feb 2015 02:27:02 +0900 Subject: 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 --- arch/arm/mach-uniphier/ph1-ld4/sbc_init.c | 56 +++++++++++++++---------------- 1 file changed, 28 insertions(+), 28 deletions(-) (limited to 'arch/arm/mach-uniphier/ph1-ld4/sbc_init.c') diff --git a/arch/arm/mach-uniphier/ph1-ld4/sbc_init.c b/arch/arm/mach-uniphier/ph1-ld4/sbc_init.c index 374a8c0..00f8461 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); + } } -- cgit v1.1