From 7e4154a553c56ccbf877ac830e15b9c23815eb4d Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Mon, 2 Jun 2014 22:04:48 -0600 Subject: [PATCH] am33xx/omap: Allow cache enable for all Sitara/OMAP Enable the cache for all devices, unless CONFIG_SYS_DCACHE_OFF is defined. This speeds up the Beaglebone Black boot considerable. (Tested only on Beaglebone Black with SD card boot) Signed-off-by: Simon Glass --- arch/arm/cpu/armv7/am33xx/board.c | 8 --- arch/arm/cpu/armv7/omap-common/Makefile | 4 ++ .../arm/cpu/armv7/omap-common/hwinit-common.c | 42 -------------- arch/arm/cpu/armv7/omap-common/omap-cache.c | 56 +++++++++++++++++++ arch/arm/cpu/armv7/omap3/board.c | 8 --- 5 files changed, 60 insertions(+), 58 deletions(-) create mode 100644 arch/arm/cpu/armv7/omap-common/omap-cache.c diff --git a/arch/arm/cpu/armv7/am33xx/board.c b/arch/arm/cpu/armv7/am33xx/board.c index 7fe049e513..828d10bb5a 100644 --- a/arch/arm/cpu/armv7/am33xx/board.c +++ b/arch/arm/cpu/armv7/am33xx/board.c @@ -255,11 +255,3 @@ void s_init(void) #endif } #endif - -#ifndef CONFIG_SYS_DCACHE_OFF -void enable_caches(void) -{ - /* Enable D-cache. I-cache is already enabled in start.S */ - dcache_enable(); -} -#endif /* !CONFIG_SYS_DCACHE_OFF */ diff --git a/arch/arm/cpu/armv7/omap-common/Makefile b/arch/arm/cpu/armv7/omap-common/Makefile index 5f5132f661..7695e16d36 100644 --- a/arch/arm/cpu/armv7/omap-common/Makefile +++ b/arch/arm/cpu/armv7/omap-common/Makefile @@ -22,6 +22,10 @@ obj-y += pipe3-phy.o obj-$(CONFIG_SCSI_AHCI_PLAT) += sata.o endif +ifeq ($(CONFIG_SYS_DCACHE_OFF),) +obj-y += omap-cache.o +endif + ifeq ($(CONFIG_OMAP34XX),) obj-y += boot-common.o obj-y += lowlevel_init.o diff --git a/arch/arm/cpu/armv7/omap-common/hwinit-common.c b/arch/arm/cpu/armv7/omap-common/hwinit-common.c index ba97d9ec56..5f50a19801 100644 --- a/arch/arm/cpu/armv7/omap-common/hwinit-common.c +++ b/arch/arm/cpu/armv7/omap-common/hwinit-common.c @@ -18,13 +18,8 @@ #include #include #include -#include #include -#define ARMV7_DCACHE_WRITEBACK 0xe -#define ARMV7_DOMAIN_CLIENT 1 -#define ARMV7_DOMAIN_MASK (0x3 << 0) - DECLARE_GLOBAL_DATA_PTR; void do_set_mux(u32 base, struct pad_conf_entry const *array, int size) @@ -263,40 +258,3 @@ int print_cpuinfo(void) return 0; } #endif - -#ifndef CONFIG_SYS_DCACHE_OFF -void enable_caches(void) -{ - /* Enable D-cache. I-cache is already enabled in start.S */ - dcache_enable(); -} - -void dram_bank_mmu_setup(int bank) -{ - bd_t *bd = gd->bd; - int i; - - u32 start = bd->bi_dram[bank].start >> 20; - u32 size = bd->bi_dram[bank].size >> 20; - u32 end = start + size; - - debug("%s: bank: %d\n", __func__, bank); - for (i = start; i < end; i++) - set_section_dcache(i, ARMV7_DCACHE_WRITEBACK); - -} - -void arm_init_domains(void) -{ - u32 reg; - - reg = get_dacr(); - /* - * Set DOMAIN to client access so that all permissions - * set in pagetables are validated by the mmu. - */ - reg &= ~ARMV7_DOMAIN_MASK; - reg |= ARMV7_DOMAIN_CLIENT; - set_dacr(reg); -} -#endif diff --git a/arch/arm/cpu/armv7/omap-common/omap-cache.c b/arch/arm/cpu/armv7/omap-common/omap-cache.c new file mode 100644 index 0000000000..579bebf93f --- /dev/null +++ b/arch/arm/cpu/armv7/omap-common/omap-cache.c @@ -0,0 +1,56 @@ +/* + * + * Common functions for OMAP4/5 based boards + * + * (C) Copyright 2010 + * Texas Instruments, + * + * Author : + * Aneesh V + * Steve Sakoman + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include +#include + +DECLARE_GLOBAL_DATA_PTR; + +#define ARMV7_DCACHE_WRITEBACK 0xe +#define ARMV7_DOMAIN_CLIENT 1 +#define ARMV7_DOMAIN_MASK (0x3 << 0) + +void enable_caches(void) +{ + /* Enable D-cache. I-cache is already enabled in start.S */ + dcache_enable(); +} + +void dram_bank_mmu_setup(int bank) +{ + bd_t *bd = gd->bd; + int i; + + u32 start = bd->bi_dram[bank].start >> 20; + u32 size = bd->bi_dram[bank].size >> 20; + u32 end = start + size; + + debug("%s: bank: %d\n", __func__, bank); + for (i = start; i < end; i++) + set_section_dcache(i, ARMV7_DCACHE_WRITEBACK); +} + +void arm_init_domains(void) +{ + u32 reg; + + reg = get_dacr(); + /* + * Set DOMAIN to client access so that all permissions + * set in pagetables are validated by the mmu. + */ + reg &= ~ARMV7_DOMAIN_MASK; + reg |= ARMV7_DOMAIN_CLIENT; + set_dacr(reg); +} diff --git a/arch/arm/cpu/armv7/omap3/board.c b/arch/arm/cpu/armv7/omap3/board.c index 9bb1a1c8f9..e252e7fd95 100644 --- a/arch/arm/cpu/armv7/omap3/board.c +++ b/arch/arm/cpu/armv7/omap3/board.c @@ -478,11 +478,3 @@ void omap3_outer_cache_disable(void) omap3_update_aux_cr(0, 0x2); } #endif /* !CONFIG_SYS_L2CACHE_OFF */ - -#ifndef CONFIG_SYS_DCACHE_OFF -void enable_caches(void) -{ - /* Enable D-cache. I-cache is already enabled in start.S */ - dcache_enable(); -} -#endif /* !CONFIG_SYS_DCACHE_OFF */ -- 2.39.2