mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-15 15:53:02 +00:00
5fd6d4c7b3
Now we use fdtdec_setup_mem_size_base() to get DRAM base from fdt ram node and update gd->ram_base. CFG_SYS_SDRAM_BASE is unused and will be removed. Also, since mt7622 always passes fdt to linux kernel, there's no need to assign value to gd->bd->bi_boot_params. Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
59 lines
1 KiB
C
59 lines
1 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Copyright (C) 2019 MediaTek Inc.
|
|
* Author: Sam Shih <sam.shih@mediatek.com>
|
|
*/
|
|
|
|
#include <fdtdec.h>
|
|
#include <init.h>
|
|
#include <asm/armv8/mmu.h>
|
|
#include <asm/system.h>
|
|
#include <asm/global_data.h>
|
|
#include <asm/u-boot.h>
|
|
#include <linux/sizes.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
int print_cpuinfo(void)
|
|
{
|
|
printf("CPU: MediaTek MT7622\n");
|
|
return 0;
|
|
}
|
|
|
|
int dram_init(void)
|
|
{
|
|
int ret;
|
|
|
|
ret = fdtdec_setup_mem_size_base();
|
|
if (ret)
|
|
return ret;
|
|
|
|
gd->ram_size = get_ram_size((void *)gd->ram_base, SZ_2G);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void reset_cpu(void)
|
|
{
|
|
psci_system_reset();
|
|
}
|
|
|
|
static struct mm_region mt7622_mem_map[] = {
|
|
{
|
|
/* DDR */
|
|
.virt = 0x40000000UL,
|
|
.phys = 0x40000000UL,
|
|
.size = 0x40000000UL,
|
|
.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) | PTE_BLOCK_OUTER_SHARE,
|
|
}, {
|
|
.virt = 0x00000000UL,
|
|
.phys = 0x00000000UL,
|
|
.size = 0x40000000UL,
|
|
.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
|
|
PTE_BLOCK_NON_SHARE |
|
|
PTE_BLOCK_PXN | PTE_BLOCK_UXN
|
|
}, {
|
|
0,
|
|
}
|
|
};
|
|
struct mm_region *mem_map = mt7622_mem_map;
|