From 4ab994b16a762399f9d49832fb677a4eceb3dc2f Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Mon, 16 Mar 2015 13:46:07 +0900 Subject: [PATCH 01/14] ARM: UniPhier: remove unnecessary CONFIG_SYS_SOC Since commit a86ac9540e20 (ARM: UniPhier: include instead of ), UniPhier platform does not need the symbolic link arch/arm/include/asm. This option is not necessary either. Signed-off-by: Masahiro Yamada --- arch/arm/mach-uniphier/Kconfig | 3 --- 1 file changed, 3 deletions(-) diff --git a/arch/arm/mach-uniphier/Kconfig b/arch/arm/mach-uniphier/Kconfig index 8335685e32..73f26594d6 100644 --- a/arch/arm/mach-uniphier/Kconfig +++ b/arch/arm/mach-uniphier/Kconfig @@ -1,9 +1,6 @@ menu "Panasonic UniPhier platform" depends on ARCH_UNIPHIER -config SYS_SOC - default "uniphier" - config SYS_CONFIG_NAME default "uniphier" From d5e73050139d44ebbff212c7c1de764606029ee7 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Mon, 23 Mar 2015 00:07:21 +0900 Subject: [PATCH 02/14] ARM: UniPhier: include PH1-LD4 Makefile from PH1-sLD8 The two Makefiles arch/arm/mach-uniphier/{ph1-ld4,ph1-sld8}/Makefile are completely the same. We can improve the maintainability by having one to include the other. Signed-off-by: Masahiro Yamada --- arch/arm/mach-uniphier/ph1-sld8/Makefile | 17 +---------------- 1 file changed, 1 insertion(+), 16 deletions(-) diff --git a/arch/arm/mach-uniphier/ph1-sld8/Makefile b/arch/arm/mach-uniphier/ph1-sld8/Makefile index 5ce3d8a520..8eb575e1d3 100644 --- a/arch/arm/mach-uniphier/ph1-sld8/Makefile +++ b/arch/arm/mach-uniphier/ph1-sld8/Makefile @@ -1,16 +1 @@ -# -# SPDX-License-Identifier: GPL-2.0+ -# - -ifdef CONFIG_SPL_BUILD -obj-$(CONFIG_DEBUG_LL) += lowlevel_debug.o -obj-y += bcu_init.o sg_init.o pll_init.o early_clkrst_init.o \ - pll_spectrum.o umc_init.o ddrphy_init.o -obj-$(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 -endif - -obj-y += boot-mode.o +include $(src)/../ph1-ld4/Makefile From 94ab98bb1c963bb9694955a9512044ef2630a4fe Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Mon, 23 Mar 2015 00:07:22 +0900 Subject: [PATCH 03/14] ARM: UniPhier: move platform devices to SPL Since we do not have OF_CONTROL support for SPL, platform devices are necessary to enable Driver Model on SPL. To prepare for that, move platdevice.o to SPL and enable it by CONFIG_SPL_DM. Signed-off-by: Masahiro Yamada --- arch/arm/mach-uniphier/ph1-ld4/Makefile | 2 +- arch/arm/mach-uniphier/ph1-pro4/Makefile | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-uniphier/ph1-ld4/Makefile b/arch/arm/mach-uniphier/ph1-ld4/Makefile index 5ce3d8a520..fa36419271 100644 --- a/arch/arm/mach-uniphier/ph1-ld4/Makefile +++ b/arch/arm/mach-uniphier/ph1-ld4/Makefile @@ -8,9 +8,9 @@ obj-y += bcu_init.o sg_init.o pll_init.o early_clkrst_init.o \ pll_spectrum.o umc_init.o ddrphy_init.o obj-$(CONFIG_PFC_MICRO_SUPPORT_CARD) += sbc_init.o obj-$(CONFIG_DCC_MICRO_SUPPORT_CARD) += sbc_init_3cs.o +obj-$(CONFIG_SPL_DM) += platdevice.o else obj-$(CONFIG_BOARD_EARLY_INIT_F) += pinctrl.o clkrst_init.o -obj-$(if $(CONFIG_OF_CONTROL),,y) += platdevice.o endif obj-y += boot-mode.o diff --git a/arch/arm/mach-uniphier/ph1-pro4/Makefile b/arch/arm/mach-uniphier/ph1-pro4/Makefile index b88525c82d..ac27d9b164 100644 --- a/arch/arm/mach-uniphier/ph1-pro4/Makefile +++ b/arch/arm/mach-uniphier/ph1-pro4/Makefile @@ -8,9 +8,9 @@ obj-y += sg_init.o pll_init.o early_clkrst_init.o \ pll_spectrum.o umc_init.o ddrphy_init.o obj-$(CONFIG_PFC_MICRO_SUPPORT_CARD) += sbc_init.o obj-$(CONFIG_DCC_MICRO_SUPPORT_CARD) += sbc_init_3cs.o +obj-$(CONFIG_SPL_DM) += platdevice.o else obj-$(CONFIG_BOARD_EARLY_INIT_F) += pinctrl.o clkrst_init.o -obj-$(if $(CONFIG_OF_CONTROL),,y) += platdevice.o endif obj-y += boot-mode.o From 7d1a3a67bcabb19ac69dafc7b5f4ad4e397442b8 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Mon, 23 Mar 2015 00:07:23 +0900 Subject: [PATCH 04/14] ARM: UniPhier: move UART pin settings to SPL The UniPhier platform is going to enable Driver Model and UART support on SPL. Move UART pin settings to early_pin_init(), which is called from SPL. Signed-off-by: Masahiro Yamada --- arch/arm/mach-uniphier/ph1-ld4/Makefile | 2 +- .../arm/mach-uniphier/ph1-ld4/early_pinctrl.c | 27 +++++++++++++++++++ arch/arm/mach-uniphier/ph1-ld4/pinctrl.c | 18 ++----------- arch/arm/mach-uniphier/ph1-pro4/Makefile | 2 +- .../mach-uniphier/ph1-pro4/early_pinctrl.c | 27 +++++++++++++++++++ arch/arm/mach-uniphier/ph1-pro4/pinctrl.c | 15 ++--------- .../mach-uniphier/ph1-sld8/early_pinctrl.c | 27 +++++++++++++++++++ arch/arm/mach-uniphier/ph1-sld8/pinctrl.c | 18 ++----------- arch/arm/mach-uniphier/spl.c | 9 +++++-- 9 files changed, 96 insertions(+), 49 deletions(-) create mode 100644 arch/arm/mach-uniphier/ph1-ld4/early_pinctrl.c create mode 100644 arch/arm/mach-uniphier/ph1-pro4/early_pinctrl.c create mode 100644 arch/arm/mach-uniphier/ph1-sld8/early_pinctrl.c diff --git a/arch/arm/mach-uniphier/ph1-ld4/Makefile b/arch/arm/mach-uniphier/ph1-ld4/Makefile index fa36419271..af815c3260 100644 --- a/arch/arm/mach-uniphier/ph1-ld4/Makefile +++ b/arch/arm/mach-uniphier/ph1-ld4/Makefile @@ -5,7 +5,7 @@ ifdef CONFIG_SPL_BUILD obj-$(CONFIG_DEBUG_LL) += lowlevel_debug.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 + early_pinctrl.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 obj-$(CONFIG_SPL_DM) += platdevice.o diff --git a/arch/arm/mach-uniphier/ph1-ld4/early_pinctrl.c b/arch/arm/mach-uniphier/ph1-ld4/early_pinctrl.c new file mode 100644 index 0000000000..e5e86bb363 --- /dev/null +++ b/arch/arm/mach-uniphier/ph1-ld4/early_pinctrl.c @@ -0,0 +1,27 @@ +/* + * Copyright (C) 2011-2015 Panasonic Corporation + * Copyright (C) 2015 Socionext Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include + +void early_pin_init(void) +{ + /* Comment format: PAD Name -> Function Name */ + +#ifdef CONFIG_UNIPHIER_SERIAL + sg_set_pinsel(85, 1); /* HSDOUT3 -> RXD0 */ + sg_set_pinsel(88, 1); /* HDDOUT6 -> TXD0 */ + + sg_set_pinsel(69, 23); /* PCIOWR -> TXD1 */ + sg_set_pinsel(70, 23); /* PCIORD -> RXD1 */ + + sg_set_pinsel(128, 13); /* XIRQ6 -> TXD2 */ + sg_set_pinsel(129, 13); /* XIRQ7 -> RXD2 */ + + sg_set_pinsel(110, 1); /* SBO0 -> TXD3 */ + sg_set_pinsel(111, 1); /* SBI0 -> RXD3 */ +#endif +} diff --git a/arch/arm/mach-uniphier/ph1-ld4/pinctrl.c b/arch/arm/mach-uniphier/ph1-ld4/pinctrl.c index 15d81ebb3d..3074d0a8d2 100644 --- a/arch/arm/mach-uniphier/ph1-ld4/pinctrl.c +++ b/arch/arm/mach-uniphier/ph1-ld4/pinctrl.c @@ -1,10 +1,10 @@ /* - * Copyright (C) 2011-2014 Panasonic Corporation + * Copyright (C) 2011-2015 Panasonic Corporation + * Copyright (C) 2015 Socionext Inc. * * SPDX-License-Identifier: GPL-2.0+ */ -#include #include #include @@ -14,20 +14,6 @@ void pin_init(void) /* Comment format: PAD Name -> Function Name */ -#ifdef CONFIG_UNIPHIER_SERIAL - sg_set_pinsel(85, 1); /* HSDOUT3 -> RXD0 */ - sg_set_pinsel(88, 1); /* HDDOUT6 -> TXD0 */ - - sg_set_pinsel(69, 23); /* PCIOWR -> TXD1 */ - sg_set_pinsel(70, 23); /* PCIORD -> RXD1 */ - - sg_set_pinsel(128, 13); /* XIRQ6 -> TXD2 */ - sg_set_pinsel(129, 13); /* XIRQ7 -> RXD2 */ - - sg_set_pinsel(110, 1); /* SBO0 -> TXD3 */ - sg_set_pinsel(111, 1); /* SBI0 -> RXD3 */ -#endif - #ifdef CONFIG_NAND_DENALI sg_set_pinsel(158, 0); /* XNFRE -> XNFRE_GB */ sg_set_pinsel(159, 0); /* XNFWE -> XNFWE_GB */ diff --git a/arch/arm/mach-uniphier/ph1-pro4/Makefile b/arch/arm/mach-uniphier/ph1-pro4/Makefile index ac27d9b164..f6a584e1f0 100644 --- a/arch/arm/mach-uniphier/ph1-pro4/Makefile +++ b/arch/arm/mach-uniphier/ph1-pro4/Makefile @@ -5,7 +5,7 @@ ifdef CONFIG_SPL_BUILD obj-$(CONFIG_DEBUG_LL) += lowlevel_debug.o obj-y += sg_init.o pll_init.o early_clkrst_init.o \ - pll_spectrum.o umc_init.o ddrphy_init.o + early_pinctrl.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 obj-$(CONFIG_SPL_DM) += platdevice.o diff --git a/arch/arm/mach-uniphier/ph1-pro4/early_pinctrl.c b/arch/arm/mach-uniphier/ph1-pro4/early_pinctrl.c new file mode 100644 index 0000000000..85bb6a0b9c --- /dev/null +++ b/arch/arm/mach-uniphier/ph1-pro4/early_pinctrl.c @@ -0,0 +1,27 @@ +/* + * Copyright (C) 2011-2015 Panasonic Corporation + * Copyright (C) 2015 Socionext Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include +#include + +void early_pin_init(void) +{ + /* Comment format: PAD Name -> Function Name */ + +#ifdef CONFIG_UNIPHIER_SERIAL + sg_set_pinsel(127, 0); /* RXD0 -> RXD0 */ + sg_set_pinsel(128, 0); /* TXD0 -> TXD0 */ + sg_set_pinsel(129, 0); /* RXD1 -> RXD1 */ + sg_set_pinsel(130, 0); /* TXD1 -> TXD1 */ + sg_set_pinsel(131, 0); /* RXD2 -> RXD2 */ + sg_set_pinsel(132, 0); /* TXD2 -> TXD2 */ + sg_set_pinsel(88, 2); /* CH6CLK -> RXD3 */ + sg_set_pinsel(89, 2); /* CH6VAL -> TXD3 */ +#endif + + writel(1, SG_LOADPINCTRL); +} diff --git a/arch/arm/mach-uniphier/ph1-pro4/pinctrl.c b/arch/arm/mach-uniphier/ph1-pro4/pinctrl.c index f382ef4842..4df9098ef0 100644 --- a/arch/arm/mach-uniphier/ph1-pro4/pinctrl.c +++ b/arch/arm/mach-uniphier/ph1-pro4/pinctrl.c @@ -1,10 +1,10 @@ /* - * Copyright (C) 2011-2014 Panasonic Corporation + * Copyright (C) 2011-2015 Panasonic Corporation + * Copyright (C) 2015 Socionext Inc. * * SPDX-License-Identifier: GPL-2.0+ */ -#include #include #include @@ -12,17 +12,6 @@ void pin_init(void) { /* Comment format: PAD Name -> Function Name */ -#ifdef CONFIG_UNIPHIER_SERIAL - sg_set_pinsel(127, 0); /* RXD0 -> RXD0 */ - sg_set_pinsel(128, 0); /* TXD0 -> TXD0 */ - sg_set_pinsel(129, 0); /* RXD1 -> RXD1 */ - sg_set_pinsel(130, 0); /* TXD1 -> TXD1 */ - sg_set_pinsel(131, 0); /* RXD2 -> RXD2 */ - sg_set_pinsel(132, 0); /* TXD2 -> TXD2 */ - sg_set_pinsel(88, 2); /* CH6CLK -> RXD3 */ - sg_set_pinsel(89, 2); /* CH6VAL -> TXD3 */ -#endif - #ifdef CONFIG_NAND_DENALI sg_set_pinsel(40, 0); /* NFD0 -> NFD0 */ sg_set_pinsel(41, 0); /* NFD1 -> NFD1 */ diff --git a/arch/arm/mach-uniphier/ph1-sld8/early_pinctrl.c b/arch/arm/mach-uniphier/ph1-sld8/early_pinctrl.c new file mode 100644 index 0000000000..28cc4296fc --- /dev/null +++ b/arch/arm/mach-uniphier/ph1-sld8/early_pinctrl.c @@ -0,0 +1,27 @@ +/* + * Copyright (C) 2011-2015 Panasonic Corporation + * Copyright (C) 2015 Socionext Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include + +void early_pin_init(void) +{ + /* Comment format: PAD Name -> Function Name */ + +#ifdef CONFIG_UNIPHIER_SERIAL + sg_set_pinsel(70, 3); /* HDDOUT0 -> TXD0 */ + sg_set_pinsel(71, 3); /* HSDOUT1 -> RXD0 */ + + sg_set_pinsel(114, 0); /* TXD1 -> TXD1 */ + sg_set_pinsel(115, 0); /* RXD1 -> RXD1 */ + + sg_set_pinsel(112, 1); /* SBO1 -> TXD2 */ + sg_set_pinsel(113, 1); /* SBI1 -> RXD2 */ + + sg_set_pinsel(110, 1); /* SBO0 -> TXD3 */ + sg_set_pinsel(111, 1); /* SBI0 -> RXD3 */ +#endif +} diff --git a/arch/arm/mach-uniphier/ph1-sld8/pinctrl.c b/arch/arm/mach-uniphier/ph1-sld8/pinctrl.c index 4c494ffa40..57a8093048 100644 --- a/arch/arm/mach-uniphier/ph1-sld8/pinctrl.c +++ b/arch/arm/mach-uniphier/ph1-sld8/pinctrl.c @@ -1,10 +1,10 @@ /* - * Copyright (C) 2011-2014 Panasonic Corporation + * Copyright (C) 2011-2015 Panasonic Corporation + * Copyright (C) 2015 Socionext Inc. * * SPDX-License-Identifier: GPL-2.0+ */ -#include #include #include @@ -12,20 +12,6 @@ void pin_init(void) { /* Comment format: PAD Name -> Function Name */ -#ifdef CONFIG_UNIPHIER_SERIAL - sg_set_pinsel(70, 3); /* HDDOUT0 -> TXD0 */ - sg_set_pinsel(71, 3); /* HSDOUT1 -> RXD0 */ - - sg_set_pinsel(114, 0); /* TXD1 -> TXD1 */ - sg_set_pinsel(115, 0); /* RXD1 -> RXD1 */ - - sg_set_pinsel(112, 1); /* SBO1 -> TXD2 */ - sg_set_pinsel(113, 1); /* SBI1 -> RXD2 */ - - sg_set_pinsel(110, 1); /* SBO0 -> TXD3 */ - sg_set_pinsel(111, 1); /* SBI0 -> RXD3 */ -#endif - #ifdef CONFIG_SYS_I2C_UNIPHIER { u32 tmp; diff --git a/arch/arm/mach-uniphier/spl.c b/arch/arm/mach-uniphier/spl.c index c3d90d03d0..a0d0f040a8 100644 --- a/arch/arm/mach-uniphier/spl.c +++ b/arch/arm/mach-uniphier/spl.c @@ -20,6 +20,7 @@ void pll_init(void); void pin_init(void); void memconf_init(void); void early_clkrst_init(void); +void early_pin_init(void); int umc_init(void); void enable_dpll_ssc(void); @@ -47,6 +48,10 @@ void spl_board_init(void) led_write(L, 2, , ); + early_pin_init(); + + led_write(L, 3, , ); + { int res; @@ -56,9 +61,9 @@ void spl_board_init(void) ; } } - led_write(L, 3, , ); + led_write(L, 4, , ); enable_dpll_ssc(); - led_write(L, 4, , ); + led_write(L, 5, , ); } From a286039b13d5bbcee0a0525e44f564f82aa0e636 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Mon, 23 Mar 2015 00:07:24 +0900 Subject: [PATCH 05/14] ARM: UniPhier: enable CONFIG_PANIC_HANG Do not reset board on panic, which allows us to not link reset_cpu() into SPL. Signed-off-by: Masahiro Yamada --- include/configs/uniphier.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/include/configs/uniphier.h b/include/configs/uniphier.h index df89d14cc3..58608ca67d 100644 --- a/include/configs/uniphier.h +++ b/include/configs/uniphier.h @@ -1,6 +1,7 @@ /* * Copyright (C) 2012-2015 Panasonic Corporation - * Author: Masahiro Yamada + * Copyright (C) 2015 Socionext Inc. + * Author: Masahiro Yamada * * SPDX-License-Identifier: GPL-2.0+ */ @@ -288,6 +289,8 @@ #define CONFIG_SYS_INIT_SP_ADDR ((CONFIG_SYS_TEXT_BASE) - 0x00001000) #endif +#define CONFIG_PANIC_HANG + #define CONFIG_SPL_FRAMEWORK #define CONFIG_SPL_NAND_SUPPORT From 499785b970a36a0c8de9bf4e5edf07455dc5b9bc Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Mon, 23 Mar 2015 00:07:25 +0900 Subject: [PATCH 06/14] ARM: UniPhier: enable Driver Model and UART on SPL Enable CONFIG_SPL_DM and CONFIG_SPL_SERIAL_SUPPORT, which provide Driver Model UART support on SPL. CONFIG_SYS_SPL_MALLOC_{START,SIZE} should be dropped because simple malloc is preferred on SPL. Dlmalloc requires some static variables on .data section that is not available yet for NOR boot mode etc. Signed-off-by: Masahiro Yamada --- arch/arm/mach-uniphier/spl.c | 13 ++++++++++--- configs/ph1_ld4_defconfig | 1 + configs/ph1_pro4_defconfig | 1 + configs/ph1_sld8_defconfig | 1 + include/configs/uniphier.h | 4 +--- 5 files changed, 14 insertions(+), 6 deletions(-) diff --git a/arch/arm/mach-uniphier/spl.c b/arch/arm/mach-uniphier/spl.c index a0d0f040a8..a34d3a167c 100644 --- a/arch/arm/mach-uniphier/spl.c +++ b/arch/arm/mach-uniphier/spl.c @@ -1,6 +1,7 @@ /* * Copyright (C) 2013-2015 Panasonic Corporation - * Author: Masahiro Yamada + * Copyright (C) 2015 Socionext Inc. + * Author: Masahiro Yamada * * SPDX-License-Identifier: GPL-2.0+ */ @@ -52,6 +53,12 @@ void spl_board_init(void) led_write(L, 3, , ); +#ifdef CONFIG_SPL_SERIAL_SUPPORT + preloader_console_init(); +#endif + + led_write(L, 4, , ); + { int res; @@ -61,9 +68,9 @@ void spl_board_init(void) ; } } - led_write(L, 4, , ); + led_write(L, 5, , ); enable_dpll_ssc(); - led_write(L, 5, , ); + led_write(L, 6, , ); } diff --git a/configs/ph1_ld4_defconfig b/configs/ph1_ld4_defconfig index 292f2ca13e..aa1805b665 100644 --- a/configs/ph1_ld4_defconfig +++ b/configs/ph1_ld4_defconfig @@ -2,6 +2,7 @@ CONFIG_ARM=y CONFIG_ARCH_UNIPHIER=y CONFIG_DM=y CONFIG_DM_SERIAL=y +CONFIG_SPL_DM=y CONFIG_DM_I2C=y CONFIG_MACH_PH1_LD4=y CONFIG_PFC_MICRO_SUPPORT_CARD=y diff --git a/configs/ph1_pro4_defconfig b/configs/ph1_pro4_defconfig index 202186245e..194f7a5c58 100644 --- a/configs/ph1_pro4_defconfig +++ b/configs/ph1_pro4_defconfig @@ -2,6 +2,7 @@ CONFIG_ARM=y CONFIG_ARCH_UNIPHIER=y CONFIG_DM=y CONFIG_DM_SERIAL=y +CONFIG_SPL_DM=y CONFIG_DM_I2C=y CONFIG_MACH_PH1_PRO4=y CONFIG_PFC_MICRO_SUPPORT_CARD=y diff --git a/configs/ph1_sld8_defconfig b/configs/ph1_sld8_defconfig index cf229aef25..e7e7ffff0b 100644 --- a/configs/ph1_sld8_defconfig +++ b/configs/ph1_sld8_defconfig @@ -2,6 +2,7 @@ CONFIG_ARM=y CONFIG_ARCH_UNIPHIER=y CONFIG_DM=y CONFIG_DM_SERIAL=y +CONFIG_SPL_DM=y CONFIG_DM_I2C=y CONFIG_MACH_PH1_SLD8=y CONFIG_PFC_MICRO_SUPPORT_CARD=y diff --git a/include/configs/uniphier.h b/include/configs/uniphier.h index 58608ca67d..c27010a408 100644 --- a/include/configs/uniphier.h +++ b/include/configs/uniphier.h @@ -280,9 +280,6 @@ #define CONFIG_SKIP_LOWLEVEL_INIT #endif -#define CONFIG_SYS_SPL_MALLOC_START (0x0ff00000) -#define CONFIG_SYS_SPL_MALLOC_SIZE (0x00004000) - #ifdef CONFIG_SPL_BUILD #define CONFIG_SYS_INIT_SP_ADDR (0x0ff08000) #else @@ -292,6 +289,7 @@ #define CONFIG_PANIC_HANG #define CONFIG_SPL_FRAMEWORK +#define CONFIG_SPL_SERIAL_SUPPORT #define CONFIG_SPL_NAND_SUPPORT #define CONFIG_SPL_LIBCOMMON_SUPPORT /* for mem_malloc_init */ From ce3a63905b06c884b8e22249b264b246cb84716f Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Mon, 23 Mar 2015 00:07:26 +0900 Subject: [PATCH 07/14] ARM: UniPhier: use CONFIG_SPL_STACK to define SPL stack pointer Ifdef conditionals for CONFIG options are not Kconfig-friendly. Instead, define CONFIG_SPL_STACK to prepare for Kconfig moves. Signed-off-by: Masahiro Yamada --- arch/arm/mach-uniphier/init_page_table.S | 10 +++++++++- arch/arm/mach-uniphier/lowlevel_init.S | 7 ++++--- include/configs/uniphier.h | 5 +---- 3 files changed, 14 insertions(+), 8 deletions(-) diff --git a/arch/arm/mach-uniphier/init_page_table.S b/arch/arm/mach-uniphier/init_page_table.S index 2638bcd779..ac2959a17d 100644 --- a/arch/arm/mach-uniphier/init_page_table.S +++ b/arch/arm/mach-uniphier/init_page_table.S @@ -1,3 +1,11 @@ +/* + * Copyright (C) 2015 Panasonic Corporation + * Copyright (C) 2015 Socionext Inc. + * Author: Masahiro Yamada + * + * SPDX-License-Identifier: GPL-2.0+ + */ + #include #include @@ -8,7 +16,7 @@ #define NORMAL 0x0000000e /* Normal Memory Write-Back, No Write-Allocate */ #define TEXT_SECTION ((CONFIG_SPL_TEXT_BASE) >> (SECTION_SHIFT)) -#define STACK_SECTION ((CONFIG_SYS_INIT_SP_ADDR) >> (SECTION_SHIFT)) +#define STACK_SECTION ((CONFIG_SPL_STACK) >> (SECTION_SHIFT)) .section ".rodata" .align 14 diff --git a/arch/arm/mach-uniphier/lowlevel_init.S b/arch/arm/mach-uniphier/lowlevel_init.S index 92299fe64d..3a3ada8fce 100644 --- a/arch/arm/mach-uniphier/lowlevel_init.S +++ b/arch/arm/mach-uniphier/lowlevel_init.S @@ -1,6 +1,7 @@ /* - * Copyright (C) 2012-2014 Panasonic Corporation - * Author: Masahiro Yamada + * Copyright (C) 2012-2015 Panasonic Corporation + * Copyright (C) 2015 Socionext Inc. + * Author: Masahiro Yamada * * SPDX-License-Identifier: GPL-2.0+ */ @@ -142,7 +143,7 @@ ENTRY(setup_init_ram) ldr r0, = 0x00408006 @ touch to zero with address range ldr r1, = SSCOQM str r0, [r1] - ldr r0, = (CONFIG_SYS_INIT_SP_ADDR - BOOT_RAM_SIZE) @ base address + ldr r0, = (CONFIG_SPL_STACK - BOOT_RAM_SIZE) @ base address ldr r1, = SSCOQAD str r0, [r1] ldr r0, = BOOT_RAM_SIZE diff --git a/include/configs/uniphier.h b/include/configs/uniphier.h index c27010a408..db1e08f81a 100644 --- a/include/configs/uniphier.h +++ b/include/configs/uniphier.h @@ -280,11 +280,8 @@ #define CONFIG_SKIP_LOWLEVEL_INIT #endif -#ifdef CONFIG_SPL_BUILD -#define CONFIG_SYS_INIT_SP_ADDR (0x0ff08000) -#else +#define CONFIG_SPL_STACK (0x0ff08000) #define CONFIG_SYS_INIT_SP_ADDR ((CONFIG_SYS_TEXT_BASE) - 0x00001000) -#endif #define CONFIG_PANIC_HANG From 6a3cffe8e189ca7ebd5bb801db7ec28b35ed9797 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Mon, 23 Mar 2015 00:07:27 +0900 Subject: [PATCH 08/14] ARM: UniPhier: add CONFIG_SPL_MAX_FOOTPRINT The Boot ROM of UniPhier platform only loads 64KB image. We should always make sure that SPL memory footprint is less than that. Signed-off-by: Masahiro Yamada --- include/configs/uniphier.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/configs/uniphier.h b/include/configs/uniphier.h index db1e08f81a..d2d88dd29e 100644 --- a/include/configs/uniphier.h +++ b/include/configs/uniphier.h @@ -296,4 +296,6 @@ #define CONFIG_SYS_NAND_U_BOOT_OFFS 0x10000 +#define CONFIG_SPL_MAX_FOOTPRINT 0x10000 + #endif /* __CONFIG_UNIPHIER_COMMON_H__ */ From 8cddc27965e45993b7579ede119147c2640dc44a Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Mon, 23 Mar 2015 00:07:28 +0900 Subject: [PATCH 09/14] ARM: UniPhier: move init stack area just below TEXT_BASE There is no good reason to have the 0x1000 gap between CONFIG_SYS_INIT_SP_ADDR and CONFIG_SYS_TEXT_BASE. Signed-off-by: Masahiro Yamada --- include/configs/uniphier.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/configs/uniphier.h b/include/configs/uniphier.h index d2d88dd29e..ba89a425a8 100644 --- a/include/configs/uniphier.h +++ b/include/configs/uniphier.h @@ -281,7 +281,7 @@ #endif #define CONFIG_SPL_STACK (0x0ff08000) -#define CONFIG_SYS_INIT_SP_ADDR ((CONFIG_SYS_TEXT_BASE) - 0x00001000) +#define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_TEXT_BASE) #define CONFIG_PANIC_HANG From def3feb8cbfd44f2cfec73db4cf54760eaa97ed6 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Mon, 23 Mar 2015 00:07:29 +0900 Subject: [PATCH 10/14] ARM: UniPhier: add empty lowlevel_init to U-boot proper To remove the ifdef conditional of CONFIG_SKIP_LOWLEVEL_INIT, add late_lowlevel_init.S to U-Boot proper. Signed-off-by: Masahiro Yamada --- arch/arm/mach-uniphier/Makefile | 1 + arch/arm/mach-uniphier/late_lowlevel_init.S | 12 ++++++++++++ include/configs/uniphier.h | 4 ---- 3 files changed, 13 insertions(+), 4 deletions(-) create mode 100644 arch/arm/mach-uniphier/late_lowlevel_init.S diff --git a/arch/arm/mach-uniphier/Makefile b/arch/arm/mach-uniphier/Makefile index e7a801b2ac..f191aa3d76 100644 --- a/arch/arm/mach-uniphier/Makefile +++ b/arch/arm/mach-uniphier/Makefile @@ -12,6 +12,7 @@ obj-y += ddrphy_training.o else +obj-y += late_lowlevel_init.o obj-$(CONFIG_BOARD_EARLY_INIT_F) += board_early_init_f.o obj-$(CONFIG_DISPLAY_CPUINFO) += cpu_info.o obj-$(CONFIG_MISC_INIT_F) += print_misc_info.o diff --git a/arch/arm/mach-uniphier/late_lowlevel_init.S b/arch/arm/mach-uniphier/late_lowlevel_init.S new file mode 100644 index 0000000000..22be2a21da --- /dev/null +++ b/arch/arm/mach-uniphier/late_lowlevel_init.S @@ -0,0 +1,12 @@ +/* + * Copyright (C) 2015 Socionext Inc. + * Author: Masahiro Yamada + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include + +ENTRY(lowlevel_init) + mov pc, lr +ENDPROC(lowlevel_init) diff --git a/include/configs/uniphier.h b/include/configs/uniphier.h index ba89a425a8..d4688c54ba 100644 --- a/include/configs/uniphier.h +++ b/include/configs/uniphier.h @@ -276,10 +276,6 @@ #define CONFIG_SPL_TEXT_BASE 0x00100000 #endif -#ifndef CONFIG_SPL_BUILD -#define CONFIG_SKIP_LOWLEVEL_INIT -#endif - #define CONFIG_SPL_STACK (0x0ff08000) #define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_TEXT_BASE) From 4d13b1b708b8c31c0e22d7f31f05dde4b3961621 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Mon, 23 Mar 2015 00:07:30 +0900 Subject: [PATCH 11/14] ARM: UniPhier: fix typos in comments Signed-off-by: Masahiro Yamada --- arch/arm/mach-uniphier/lowlevel_init.S | 14 +++++++------- arch/arm/mach-uniphier/support_card.c | 11 ++++++----- 2 files changed, 13 insertions(+), 12 deletions(-) diff --git a/arch/arm/mach-uniphier/lowlevel_init.S b/arch/arm/mach-uniphier/lowlevel_init.S index 3a3ada8fce..4a23ea4d56 100644 --- a/arch/arm/mach-uniphier/lowlevel_init.S +++ b/arch/arm/mach-uniphier/lowlevel_init.S @@ -25,8 +25,8 @@ ENTRY(lowlevel_init) * First we need to turn on MMU and Dcache again to get back * data access to L2. */ - mrc p15, 0, r0, c1, c0, 0 @ SCTLR (System Contrl Register) - orr r0, r0, #(CR_C | CR_M) @ enable MMU and Dcache + mrc p15, 0, r0, c1, c0, 0 @ SCTLR (System Control Register) + orr r0, r0, #(CR_C | CR_M) @ enable MMU and Dcache mcr p15, 0, r0, c1, c0, 0 #ifdef CONFIG_DEBUG_LL @@ -41,7 +41,7 @@ ENTRY(lowlevel_init) ldr r3, =init_page_table @ page table must be 16KB aligned /* Disable MMU and Dcache before switching Page Table */ - mrc p15, 0, r0, c1, c0, 0 @ SCTLR (System Contrl Register) + mrc p15, 0, r0, c1, c0, 0 @ SCTLR (System Control Register) bic r0, r0, #(CR_C | CR_M) @ disable MMU and Dcache mcr p15, 0, r0, c1, c0, 0 @@ -55,7 +55,7 @@ ENTRY(lowlevel_init) * bit[7] EXCL (Exclusive cache bit) * bit[6] SMP * bit[3] Write full line of zeros mode - * bit[2] L1 Prefetch enable + * bit[2] L1 prefetch enable * bit[1] L2 prefetch enable * bit[0] FW (Cache and TLB maintenance broadcast) */ @@ -81,7 +81,7 @@ primary_cpu: ldr r0, =_start @ entry for the secondary CPU str r0, [r1] ldr r0, [r1] @ make sure str is complete before sev - sev @ kick the sedoncary CPU + sev @ kick the secondary CPU mrc p15, 4, r1, c15, c0, 0 @ Configuration Base Address Register bfc r1, #0, #13 @ clear bit 12-0 mov r0, #-1 @@ -118,7 +118,7 @@ ENTRY(enable_mmu) * TLBs was already invalidated in "../start.S" * So, we don't need to invalidate it here. */ - mrc p15, 0, r0, c1, c0, 0 @ SCTLR (System Contrl Register) + mrc p15, 0, r0, c1, c0, 0 @ SCTLR (System Control Register) orr r0, r0, #(CR_C | CR_M) @ MMU and Dcache enable mcr p15, 0, r0, c1, c0, 0 @@ -155,7 +155,7 @@ ENTRY(setup_init_ram) ldr r1, = SSCOPPQSEF ldr r0, [r1] cmp r0, #0 @ check if the command is successfully set - bne 0b @ try again if an error occurres + bne 0b @ try again if an error occurs ldr r1, = SSCOLPQS 1: diff --git a/arch/arm/mach-uniphier/support_card.c b/arch/arm/mach-uniphier/support_card.c index e7b4158636..77cc794e61 100644 --- a/arch/arm/mach-uniphier/support_card.c +++ b/arch/arm/mach-uniphier/support_card.c @@ -1,6 +1,7 @@ /* - * Copyright (C) 2012-2014 Panasonic Corporation - * Author: Masahiro Yamada + * Copyright (C) 2012-2015 Panasonic Corporation + * Copyright (C) 2015 Socionext Inc. + * Author: Masahiro Yamada * * SPDX-License-Identifier: GPL-2.0+ */ @@ -94,7 +95,7 @@ void support_card_init(void) /* * After power on, we need to keep the LAN controller in reset state * for a while. (200 usec) - * Fortunatelly, enough wait time is already inserted in pll_init() + * Fortunately, enough wait time is already inserted in pll_init() * function. So we do not have to wait here. */ support_card_reset_deassert(); @@ -213,11 +214,11 @@ static void detect_num_flash_banks(void) debug("number of flash banks: %d\n", cfi_flash_num_flash_banks); } -#else /* ONFIG_SYS_NO_FLASH */ +#else /* CONFIG_SYS_NO_FLASH */ void detect_num_flash_banks(void) { }; -#endif /* ONFIG_SYS_NO_FLASH */ +#endif /* CONFIG_SYS_NO_FLASH */ void support_card_late_init(void) { From 62118b7b0183d29755a101a6a5b88dee11c5f94b Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Mon, 23 Mar 2015 00:07:31 +0900 Subject: [PATCH 12/14] ARM: UniPhier: optimize kicking secondary CPUs code Currently, the secondary CPU(s) are kicked three times: Boot ROM ---(kick)--> SPL ---(kick)--> U-boot ---(kick)--> Linux. It makes the boot sequence very complicated. This commit merges the first and the second kicks, so the secondary CPU(s) can directly jump from SPL to Linux. arch/arm/mach-uniphier/smp.S is no longer necessary. Linux boot test passed. Signed-off-by: Masahiro Yamada --- arch/arm/mach-uniphier/Makefile | 1 - arch/arm/mach-uniphier/cache_uniphier.c | 13 +----- arch/arm/mach-uniphier/lowlevel_init.S | 42 ++++++++++++++++--- arch/arm/mach-uniphier/smp.S | 54 ------------------------- 4 files changed, 38 insertions(+), 72 deletions(-) delete mode 100644 arch/arm/mach-uniphier/smp.S diff --git a/arch/arm/mach-uniphier/Makefile b/arch/arm/mach-uniphier/Makefile index f191aa3d76..24591d6ee5 100644 --- a/arch/arm/mach-uniphier/Makefile +++ b/arch/arm/mach-uniphier/Makefile @@ -22,7 +22,6 @@ obj-$(CONFIG_BOARD_EARLY_INIT_R) += board_early_init_r.o obj-$(CONFIG_BOARD_LATE_INIT) += board_late_init.o obj-y += reset.o obj-y += cache_uniphier.o -obj-$(CONFIG_UNIPHIER_SMP) += smp.o obj-$(CONFIG_CMD_PINMON) += cmd_pinmon.o obj-$(CONFIG_CMD_DDRPHY_DUMP) += cmd_ddrphy.o diff --git a/arch/arm/mach-uniphier/cache_uniphier.c b/arch/arm/mach-uniphier/cache_uniphier.c index 52f3c7c7a6..4bf01bce3e 100644 --- a/arch/arm/mach-uniphier/cache_uniphier.c +++ b/arch/arm/mach-uniphier/cache_uniphier.c @@ -1,6 +1,7 @@ /* * Copyright (C) 2012-2014 Panasonic Corporation - * Author: Masahiro Yamada + * Copyright (C) 2015 Socionext Inc. + * Author: Masahiro Yamada * * SPDX-License-Identifier: GPL-2.0+ */ @@ -119,20 +120,10 @@ void v7_outer_cache_disable(void) writel(tmp, SSCC); } -void wakeup_secondary(void); - void enable_caches(void) { uint32_t reg; -#ifdef CONFIG_UNIPHIER_SMP - /* - * The secondary CPU must move to DDR, - * before L2 disable. - * On SPL, the Page Table is located on the L2. - */ - wakeup_secondary(); -#endif /* * UniPhier SoCs must use L2 cache for init stack pointer. * We disable L2 and L1 in this order. diff --git a/arch/arm/mach-uniphier/lowlevel_init.S b/arch/arm/mach-uniphier/lowlevel_init.S index 4a23ea4d56..825b160762 100644 --- a/arch/arm/mach-uniphier/lowlevel_init.S +++ b/arch/arm/mach-uniphier/lowlevel_init.S @@ -48,6 +48,25 @@ ENTRY(lowlevel_init) bl enable_mmu #ifdef CONFIG_UNIPHIER_SMP +secondary_startup: + /* + * Entry point for secondary CPUs + * + * The Boot ROM has already enabled MMU for the secondary CPUs as well + * as for the primary one. The MMU table embedded in the Boot ROM + * prohibits the DRAM access, so it is impossible to bring the + * secondary CPUs into DRAM directly. They must jump here into SPL, + * which is run on L2 cache. + * + * Boot Sequence + * [primary CPU] [secondary CPUs] + * start from Boot ROM start from Boot ROM + * jump to SPL sleep in Boot ROM + * kick secondaries ---(sev)---> jump to SPL + * jump to U-Boot main sleep in SPL + * jump to Linux + * kick secondaries ---(sev)---> jump to Linux + */ /* * ACTLR (Auxiliary Control Register) for Cortex-A9 * bit[9] Parity on @@ -68,17 +87,28 @@ ENTRY(lowlevel_init) and r0, r0, #0x3 cmp r0, #0x0 beq primary_cpu - ldr r1, =ROM_BOOT_ROMRSV2 + /* only for secondary CPUs */ + ldr r1, =ROM_BOOT_ROMRSV2 @ The last data access to L2 cache + mrc p15, 0, r0, c1, c0, 0 @ SCTLR (System Control Register) + orr r0, r0, #CR_I @ Enable ICache + bic r0, r0, #(CR_C | CR_M) @ MMU and Dcache must be disabled + mcr p15, 0, r0, c1, c0, 0 @ before jumping to Linux mov r0, #0 str r0, [r1] -0: wfe - ldr r0, [r1] + b 1f + /* + * L2 cache is shared among all the CPUs and it might be disabled by + * the primary one. Before that, the following 5 lines must be cached + * on the Icaches of the secondary CPUs. + */ +0: wfe @ kicked by Linux +1: ldr r0, [r1] cmp r0, #0 - beq 0b - bx r0 @ r0: entry point of U-Boot main for the secondary CPU + bxne r0 @ r0: Linux entry for secondary CPUs + b 0b primary_cpu: ldr r1, =ROM_BOOT_ROMRSV2 - ldr r0, =_start @ entry for the secondary CPU + ldr r0, =secondary_startup str r0, [r1] ldr r0, [r1] @ make sure str is complete before sev sev @ kick the secondary CPU diff --git a/arch/arm/mach-uniphier/smp.S b/arch/arm/mach-uniphier/smp.S deleted file mode 100644 index 18e3a9d21e..0000000000 --- a/arch/arm/mach-uniphier/smp.S +++ /dev/null @@ -1,54 +0,0 @@ -/* - * Copyright (C) 2013 Panasonic Corporation - * Author: Masahiro Yamada - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include -#include -#include -#include -#include - -/* Entry point of U-Boot main program for the secondary CPU */ -LENTRY(secondary_entry) - mrc p15, 0, r0, c1, c0, 0 @ SCTLR (System Contrl Register) - bic r0, r0, #(CR_C | CR_M) @ MMU and Dcache disable - mcr p15, 0, r0, c1, c0, 0 - mcr p15, 0, r0, c8, c7, 0 @ invalidate TLBs - mcr p15, 0, r0, c7, c5, 0 @ invalidate icache - dsb - led_write(C,0,,) - ldr r1, =ROM_BOOT_ROMRSV2 - mov r0, #0 - str r0, [r1] -0: wfe - ldr r4, [r1] @ r4: entry point for secondary CPUs - cmp r4, #0 - beq 0b - led_write(C, P, U, 1) - bx r4 @ secondary CPUs jump to linux -ENDPROC(secondary_entry) - -ENTRY(wakeup_secondary) - ldr r1, =ROM_BOOT_ROMRSV2 -0: ldr r0, [r1] - cmp r0, #0 - bne 0b - - /* set entry address and send event to the secondary CPU */ - ldr r0, =secondary_entry - str r0, [r1] - ldr r0, [r1] @ make sure store is complete - mov r0, #0x100 -0: subs r0, r0, #1 @ I don't know the reason, but without this wait - bne 0b @ fails to wake up the secondary CPU - sev - - /* wait until the secondary CPU reach to secondary_entry */ -0: ldr r0, [r1] - cmp r0, #0 - bne 0b - bx lr -ENDPROC(wakeup_secondary) From a509161a21ef7584d614dc1530a2756dcfb217e0 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Mon, 23 Mar 2015 00:07:32 +0900 Subject: [PATCH 13/14] ARM: UniPhier: disable L2 cache by lowlevel_init of U-Boot proper The L2 cache is used as a temporary SRAM on SPL. Now the secondary CPUs store the necessary code for jumping to Linux on their L1 I-caches. So, the L2 cache can be disabled much earlier, at the very entry of U-Boot proper (lowlevel_init). This makes the boot sequence clearer. Also, as the L1 cache has been disabled by the start.S, enable_caches() does not need to do it again. Signed-off-by: Masahiro Yamada --- arch/arm/mach-uniphier/cache_uniphier.c | 17 ----------------- arch/arm/mach-uniphier/late_lowlevel_init.S | 5 +++++ 2 files changed, 5 insertions(+), 17 deletions(-) diff --git a/arch/arm/mach-uniphier/cache_uniphier.c b/arch/arm/mach-uniphier/cache_uniphier.c index 4bf01bce3e..c1e9164489 100644 --- a/arch/arm/mach-uniphier/cache_uniphier.c +++ b/arch/arm/mach-uniphier/cache_uniphier.c @@ -122,23 +122,6 @@ void v7_outer_cache_disable(void) void enable_caches(void) { - uint32_t reg; - - /* - * UniPhier SoCs must use L2 cache for init stack pointer. - * We disable L2 and L1 in this order. - * If CONFIG_SYS_DCACHE_OFF is not defined, - * caches are enabled again with a new page table. - */ - - /* L2 disable */ - v7_outer_cache_disable(); - - /* L1 disable */ - reg = get_cr(); - reg &= ~(CR_C | CR_M); - set_cr(reg); - #ifndef CONFIG_SYS_DCACHE_OFF dcache_enable(); #endif diff --git a/arch/arm/mach-uniphier/late_lowlevel_init.S b/arch/arm/mach-uniphier/late_lowlevel_init.S index 22be2a21da..1363364c80 100644 --- a/arch/arm/mach-uniphier/late_lowlevel_init.S +++ b/arch/arm/mach-uniphier/late_lowlevel_init.S @@ -6,7 +6,12 @@ */ #include +#include ENTRY(lowlevel_init) + ldr r1, = SSCC + ldr r0, [r1] + bic r0, r0, #SSCC_ON @ L2 disable + str r0, [r1] mov pc, lr ENDPROC(lowlevel_init) From 90e357efed06767d87c49280bc25272fdf378612 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Mon, 23 Mar 2015 00:07:33 +0900 Subject: [PATCH 14/14] ARM: UniPhier: remove unnecessary ifdef conditional The callee (arch/arm/lib/cache-cp15.c) has a #ifdef CONFIG_SYS_DCACHE_OFF conditional. The same conditional in the caller (arch/arm/mach-uniphier/cache_uniphier.c) is redundant. Signed-off-by: Masahiro Yamada --- arch/arm/mach-uniphier/cache_uniphier.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/arch/arm/mach-uniphier/cache_uniphier.c b/arch/arm/mach-uniphier/cache_uniphier.c index c1e9164489..d8b8228853 100644 --- a/arch/arm/mach-uniphier/cache_uniphier.c +++ b/arch/arm/mach-uniphier/cache_uniphier.c @@ -122,7 +122,5 @@ void v7_outer_cache_disable(void) void enable_caches(void) { -#ifndef CONFIG_SYS_DCACHE_OFF dcache_enable(); -#endif }