diff options
Diffstat (limited to 'arch/arm/cpu/armv7/omap-common/omap-cache.c')
-rw-r--r-- | arch/arm/cpu/armv7/omap-common/omap-cache.c | 56 |
1 files changed, 56 insertions, 0 deletions
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, <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); +} |