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/Makefile | 4 +- arch/arm/mach-uniphier/ph1-ld4/sbc_init.c | 56 +++++++++++++-------------- arch/arm/mach-uniphier/ph1-ld4/sbc_init_3cs.c | 50 ++++++++++++++++++++++++ 3 files changed, 81 insertions(+), 29 deletions(-) create mode 100644 arch/arm/mach-uniphier/ph1-ld4/sbc_init_3cs.c (limited to 'arch/arm/mach-uniphier/ph1-ld4') diff --git a/arch/arm/mach-uniphier/ph1-ld4/Makefile b/arch/arm/mach-uniphier/ph1-ld4/Makefile index 927640a..5ce3d8a 100644 --- a/arch/arm/mach-uniphier/ph1-ld4/Makefile +++ b/arch/arm/mach-uniphier/ph1-ld4/Makefile @@ -4,8 +4,10 @@ ifdef CONFIG_SPL_BUILD obj-$(CONFIG_DEBUG_LL) += lowlevel_debug.o -obj-y += bcu_init.o sbc_init.o sg_init.o pll_init.o early_clkrst_init.o \ +obj-y += bcu_init.o sg_init.o pll_init.o early_clkrst_init.o \ pll_spectrum.o umc_init.o ddrphy_init.o +obj-$(CONFIG_PFC_MICRO_SUPPORT_CARD) += sbc_init.o +obj-$(CONFIG_DCC_MICRO_SUPPORT_CARD) += sbc_init_3cs.o else obj-$(CONFIG_BOARD_EARLY_INIT_F) += pinctrl.o clkrst_init.o obj-$(if $(CONFIG_OF_CONTROL),,y) += platdevice.o 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); + } } diff --git a/arch/arm/mach-uniphier/ph1-ld4/sbc_init_3cs.c b/arch/arm/mach-uniphier/ph1-ld4/sbc_init_3cs.c new file mode 100644 index 0000000..374a8c0 --- /dev/null +++ b/arch/arm/mach-uniphier/ph1-ld4/sbc_init_3cs.c @@ -0,0 +1,50 @@ +/* + * Copyright (C) 2011-2015 Panasonic Corporation + * Author: Masahiro Yamada + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include +#include +#include +#include + +void sbc_init(void) +{ + u32 tmp; + + /* system bus output enable */ + tmp = readl(PC0CTRL); + 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 */ +} -- cgit v1.1