diff options
author | Simon Glass <sjg@chromium.org> | 2014-06-02 22:04:48 -0600 |
---|---|---|
committer | Tom Rini <trini@ti.com> | 2014-06-11 16:25:39 -0400 |
commit | 7e4154a553c56ccbf877ac830e15b9c23815eb4d (patch) | |
tree | dad7705451942a8ad81857650b04ce229d4de500 /arch/arm/cpu/armv7/omap-common | |
parent | 89742924c8e1c003362b970a2d2998a61e1ca420 (diff) | |
download | u-boot-imx-7e4154a553c56ccbf877ac830e15b9c23815eb4d.zip u-boot-imx-7e4154a553c56ccbf877ac830e15b9c23815eb4d.tar.gz u-boot-imx-7e4154a553c56ccbf877ac830e15b9c23815eb4d.tar.bz2 |
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 <sjg@chromium.org>
Diffstat (limited to 'arch/arm/cpu/armv7/omap-common')
-rw-r--r-- | arch/arm/cpu/armv7/omap-common/Makefile | 4 | ||||
-rw-r--r-- | arch/arm/cpu/armv7/omap-common/hwinit-common.c | 42 | ||||
-rw-r--r-- | arch/arm/cpu/armv7/omap-common/omap-cache.c | 56 |
3 files changed, 60 insertions, 42 deletions
diff --git a/arch/arm/cpu/armv7/omap-common/Makefile b/arch/arm/cpu/armv7/omap-common/Makefile index 5f5132f..7695e16 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 ba97d9e..5f50a19 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 <asm/emif.h> #include <asm/omap_common.h> #include <linux/compiler.h> -#include <asm/cache.h> #include <asm/system.h> -#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 0000000..579bebf --- /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, <www.ti.com> + * + * Author : + * Aneesh V <aneesh@ti.com> + * Steve Sakoman <steve@sakoman.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/cache.h> + +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); +} |