mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-12 14:16:17 +09:00
aef149e9dd
Code reads DT and setup MMU table based on memory node. This will ensure that only DT needs to be changed. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
115 lines
2.6 KiB
C
115 lines
2.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* (C) Copyright 2016 - 2018 Xilinx, Inc.
|
|
* Michal Simek <michal.simek@xilinx.com>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <asm/armv8/mmu.h>
|
|
#include <asm/io.h>
|
|
#include <asm/arch/hardware.h>
|
|
#include <asm/arch/sys_proto.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
#define VERSAL_MEM_MAP_USED 6
|
|
|
|
#define DRAM_BANKS CONFIG_NR_DRAM_BANKS
|
|
|
|
/* +1 is end of list which needs to be empty */
|
|
#define VERSAL_MEM_MAP_MAX (VERSAL_MEM_MAP_USED + DRAM_BANKS + 1)
|
|
|
|
static struct mm_region versal_mem_map[VERSAL_MEM_MAP_MAX] = {
|
|
{
|
|
.virt = 0x80000000UL,
|
|
.phys = 0x80000000UL,
|
|
.size = 0x70000000UL,
|
|
.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
|
|
PTE_BLOCK_NON_SHARE |
|
|
PTE_BLOCK_PXN | PTE_BLOCK_UXN
|
|
}, {
|
|
.virt = 0xf0000000UL,
|
|
.phys = 0xf0000000UL,
|
|
.size = 0x0fe00000UL,
|
|
.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
|
|
PTE_BLOCK_NON_SHARE |
|
|
PTE_BLOCK_PXN | PTE_BLOCK_UXN
|
|
}, {
|
|
.virt = 0xffe00000UL,
|
|
.phys = 0xffe00000UL,
|
|
.size = 0x00200000UL,
|
|
.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
|
|
PTE_BLOCK_INNER_SHARE
|
|
}, {
|
|
.virt = 0x400000000UL,
|
|
.phys = 0x400000000UL,
|
|
.size = 0x200000000UL,
|
|
.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
|
|
PTE_BLOCK_NON_SHARE |
|
|
PTE_BLOCK_PXN | PTE_BLOCK_UXN
|
|
}, {
|
|
.virt = 0x600000000UL,
|
|
.phys = 0x600000000UL,
|
|
.size = 0x800000000UL,
|
|
.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
|
|
PTE_BLOCK_INNER_SHARE
|
|
}, {
|
|
.virt = 0xe00000000UL,
|
|
.phys = 0xe00000000UL,
|
|
.size = 0xf200000000UL,
|
|
.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
|
|
PTE_BLOCK_NON_SHARE |
|
|
PTE_BLOCK_PXN | PTE_BLOCK_UXN
|
|
}
|
|
};
|
|
|
|
void mem_map_fill(void)
|
|
{
|
|
int banks = VERSAL_MEM_MAP_USED;
|
|
|
|
for (int i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
|
|
/* Zero size means no more DDR that's this is end */
|
|
if (!gd->bd->bi_dram[i].size)
|
|
break;
|
|
|
|
versal_mem_map[banks].virt = gd->bd->bi_dram[i].start;
|
|
versal_mem_map[banks].phys = gd->bd->bi_dram[i].start;
|
|
versal_mem_map[banks].size = gd->bd->bi_dram[i].size;
|
|
versal_mem_map[banks].attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
|
|
PTE_BLOCK_INNER_SHARE;
|
|
banks = banks + 1;
|
|
}
|
|
}
|
|
|
|
struct mm_region *mem_map = versal_mem_map;
|
|
|
|
u64 get_page_table_size(void)
|
|
{
|
|
return 0x14000;
|
|
}
|
|
|
|
#if defined(CONFIG_SYS_MEM_RSVD_FOR_MMU)
|
|
int reserve_mmu(void)
|
|
{
|
|
tcm_init(TCM_LOCK);
|
|
gd->arch.tlb_size = PGTABLE_SIZE;
|
|
gd->arch.tlb_addr = VERSAL_TCM_BASE_ADDR;
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#if defined(CONFIG_OF_BOARD)
|
|
void *board_fdt_blob_setup(void)
|
|
{
|
|
static void *fw_dtb = (void *)CONFIG_VERSAL_OF_BOARD_DTB_ADDR;
|
|
|
|
if (fdt_magic(fw_dtb) != FDT_MAGIC) {
|
|
printf("DTB is not passed via %llx\n", (u64)fw_dtb);
|
|
return NULL;
|
|
}
|
|
|
|
return fw_dtb;
|
|
}
|
|
#endif
|