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armv8: K3: am654: Add custom MMU support

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Add MMU mappings for AM654 SoC.

Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
This commit is contained in:
Lokesh Vutla 2018-08-27 15:57:13 +05:30 committed by Tom Rini
parent c68721d93a
commit e091832f25
2 changed files with 46 additions and 0 deletions
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1
arch/arm/mach-k3/Makefile
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@ -4,3 +4,4 @@
# Lokesh Vutla <lokeshvutla@ti.com>
obj-$(CONFIG_SOC_K3_AM6) += am6_init.o
obj-$(CONFIG_ARM64) += arm64-mmu.o

45
arch/arm/mach-k3/arm64-mmu.c Normal file
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@ -0,0 +1,45 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* K3: ARM64 MMU setup
*
* Copyright (C) 2018 Texas Instruments Incorporated - http://www.ti.com/
* Lokesh Vutla <lokeshvutla@ti.com>
* (This file is derived from arch/arm/cpu/armv8/zynqmp/cpu.c)
*
*/
#include <common.h>
#include <asm/system.h>
#include <asm/armv8/mmu.h>
/* NR_DRAM_BANKS + 32bit IO + 64bit IO + terminator */
#define NR_MMU_REGIONS (CONFIG_NR_DRAM_BANKS + 3)
/* ToDo: Add 64bit IO */
struct mm_region am654_mem_map[NR_MMU_REGIONS] = {
{
.virt = 0x0UL,
.phys = 0x0UL,
.size = 0x80000000UL,
.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
PTE_BLOCK_NON_SHARE |
PTE_BLOCK_PXN | PTE_BLOCK_UXN
}, {
.virt = 0x80000000UL,
.phys = 0x80000000UL,
.size = 0x80000000UL,
.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
PTE_BLOCK_INNER_SHARE
}, {
.virt = 0x880000000UL,
.phys = 0x880000000UL,
.size = 0x80000000UL,
.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
PTE_BLOCK_INNER_SHARE
}, {
/* List terminator */
0,
}
};
struct mm_region *mem_map = am654_mem_map;