c7efdb9c73
Product URL: https://www.microchip.com/en-us/product/SAMA7G54 Signed-off-by: Tony Han <tony.han@microchip.com>
51 lines
1.5 KiB
C
51 lines
1.5 KiB
C
/*
|
|
* Copyright (C) 2025 Microchip Technology Inc. and its subsidiaries
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*
|
|
*/
|
|
|
|
#include <zephyr/init.h>
|
|
#include <zephyr/arch/arm/mmu/arm_mmu.h>
|
|
#include <zephyr/kernel.h>
|
|
|
|
static const struct arm_mmu_region mmu_regions[] = {
|
|
MMU_REGION_FLAT_ENTRY("vectors", CONFIG_KERNEL_VM_BASE, 0x1000,
|
|
MT_STRONGLY_ORDERED | MPERM_R | MPERM_X),
|
|
|
|
MMU_REGION_FLAT_ENTRY("flexcom3", FLEXCOM3_BASE_ADDRESS, 0x4000,
|
|
MT_STRONGLY_ORDERED | MPERM_R | MPERM_W),
|
|
|
|
MMU_REGION_FLAT_ENTRY("gic", GIC_DISTRIBUTOR_BASE, 0x1100,
|
|
MT_STRONGLY_ORDERED | MPERM_R | MPERM_W),
|
|
|
|
MMU_REGION_FLAT_ENTRY("pioa", PIO_BASE_ADDRESS, 0x4000,
|
|
MT_STRONGLY_ORDERED | MPERM_R | MPERM_W),
|
|
|
|
MMU_REGION_FLAT_ENTRY("pit64b0", PIT64B0_BASE_ADDRESS, 0x4000,
|
|
MT_STRONGLY_ORDERED | MPERM_R | MPERM_W),
|
|
|
|
MMU_REGION_FLAT_ENTRY("pmc", PMC_BASE_ADDRESS, 0x200,
|
|
MT_STRONGLY_ORDERED | MPERM_R | MPERM_W),
|
|
|
|
MMU_REGION_FLAT_ENTRY("sckc", SCKC_BASE_ADDRESS, 0x4,
|
|
MT_STRONGLY_ORDERED | MPERM_R | MPERM_W),
|
|
};
|
|
|
|
const struct arm_mmu_config mmu_config = {
|
|
.num_regions = ARRAY_SIZE(mmu_regions),
|
|
.mmu_regions = mmu_regions,
|
|
};
|
|
|
|
void relocate_vector_table(void)
|
|
{
|
|
write_vbar(CONFIG_KERNEL_VM_BASE);
|
|
}
|
|
|
|
void soc_early_init_hook(void)
|
|
{
|
|
/* Enable Generic clock for PIT64B0 for system tick */
|
|
PMC_REGS->PMC_PCR = PMC_PCR_CMD(1) | PMC_PCR_GCLKEN(1) | PMC_PCR_EN(1) |
|
|
PMC_PCR_GCLKDIV(40 - 1) | PMC_PCR_GCLKCSS_SYSPLL |
|
|
PMC_PCR_PID(ID_PIT64B0);
|
|
}
|