mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-23 19:43:33 +00:00
cd3eadc2bb
Remove the arm_init_domains and the DACR update, as it is now done in ARMv7 CP15 level. Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
66 lines
1.4 KiB
C
66 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
*
|
|
* 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>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <cpu_func.h>
|
|
#include <log.h>
|
|
#include <asm/cache.h>
|
|
#include <asm/global_data.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
/*
|
|
* Without LPAE short descriptors are used
|
|
* Set C - Cache Bit3
|
|
* Set B - Buffer Bit2
|
|
* The last 2 bits set to 0b10
|
|
* Do Not set XN bit4
|
|
* So value is 0xe
|
|
*
|
|
* With LPAE cache configuration happens via MAIR0 register
|
|
* AttrIndx value is 0x3 for picking byte3 for MAIR0 which has 0xFF.
|
|
* 0xFF maps to Cache writeback with Read and Write Allocate set
|
|
* The bits[1:0] should have the value 0b01 for the first level
|
|
* descriptor.
|
|
* So the value is 0xd
|
|
*/
|
|
|
|
#ifdef CONFIG_ARMV7_LPAE
|
|
#define ARMV7_DCACHE_POLICY DCACHE_WRITEALLOC
|
|
#else
|
|
#define ARMV7_DCACHE_POLICY DCACHE_WRITEBACK & ~TTB_SECT_XN_MASK
|
|
#endif
|
|
|
|
void enable_caches(void)
|
|
{
|
|
|
|
/* Enable I cache if not enabled */
|
|
if (!icache_status())
|
|
icache_enable();
|
|
|
|
dcache_enable();
|
|
}
|
|
|
|
void dram_bank_mmu_setup(int bank)
|
|
{
|
|
struct bd_info *bd = gd->bd;
|
|
int i;
|
|
|
|
u32 start = bd->bi_dram[bank].start >> MMU_SECTION_SHIFT;
|
|
u32 size = bd->bi_dram[bank].size >> MMU_SECTION_SHIFT;
|
|
u32 end = start + size;
|
|
|
|
debug("%s: bank: %d\n", __func__, bank);
|
|
for (i = start; i < end; i++)
|
|
set_section_dcache(i, ARMV7_DCACHE_POLICY);
|
|
}
|