mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-18 10:48:51 +00:00
9edefc2776
These functions belong in cpu_func.h. Another option would be cache.h but that code uses driver model and we have not moved these cache functions to use driver model. Since they are CPU-related it seems reasonable to put them here. Move them over. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
140 lines
2.7 KiB
C
140 lines
2.7 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* (C) Copyright 2012 Stephen Warren
|
|
*
|
|
* See file CREDITS for list of people who contributed to this
|
|
* project.
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <cpu_func.h>
|
|
#include <dm/device.h>
|
|
#include <fdt_support.h>
|
|
|
|
#ifdef CONFIG_ARM64
|
|
#include <asm/armv8/mmu.h>
|
|
|
|
static struct mm_region bcm283x_mem_map[] = {
|
|
{
|
|
.virt = 0x00000000UL,
|
|
.phys = 0x00000000UL,
|
|
.size = 0x3f000000UL,
|
|
.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
|
|
PTE_BLOCK_INNER_SHARE
|
|
}, {
|
|
.virt = 0x3f000000UL,
|
|
.phys = 0x3f000000UL,
|
|
.size = 0x01000000UL,
|
|
.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
|
|
PTE_BLOCK_NON_SHARE |
|
|
PTE_BLOCK_PXN | PTE_BLOCK_UXN
|
|
}, {
|
|
/* List terminator */
|
|
0,
|
|
}
|
|
};
|
|
|
|
static struct mm_region bcm2711_mem_map[] = {
|
|
{
|
|
.virt = 0x00000000UL,
|
|
.phys = 0x00000000UL,
|
|
.size = 0xfe000000UL,
|
|
.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
|
|
PTE_BLOCK_INNER_SHARE
|
|
}, {
|
|
.virt = 0xfe000000UL,
|
|
.phys = 0xfe000000UL,
|
|
.size = 0x01800000UL,
|
|
.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
|
|
PTE_BLOCK_NON_SHARE |
|
|
PTE_BLOCK_PXN | PTE_BLOCK_UXN
|
|
}, {
|
|
/* List terminator */
|
|
0,
|
|
}
|
|
};
|
|
|
|
struct mm_region *mem_map = bcm283x_mem_map;
|
|
|
|
/*
|
|
* I/O address space varies on different chip versions.
|
|
* We set the base address by inspecting the DTB.
|
|
*/
|
|
static const struct udevice_id board_ids[] = {
|
|
{ .compatible = "brcm,bcm2837", .data = (ulong)&bcm283x_mem_map},
|
|
{ .compatible = "brcm,bcm2838", .data = (ulong)&bcm2711_mem_map},
|
|
{ .compatible = "brcm,bcm2711", .data = (ulong)&bcm2711_mem_map},
|
|
{ },
|
|
};
|
|
|
|
static void _rpi_update_mem_map(struct mm_region *pd)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < 2; i++) {
|
|
mem_map[i].virt = pd[i].virt;
|
|
mem_map[i].phys = pd[i].phys;
|
|
mem_map[i].size = pd[i].size;
|
|
mem_map[i].attrs = pd[i].attrs;
|
|
}
|
|
}
|
|
|
|
static void rpi_update_mem_map(void)
|
|
{
|
|
int ret;
|
|
struct mm_region *mm;
|
|
const struct udevice_id *of_match = board_ids;
|
|
|
|
while (of_match->compatible) {
|
|
ret = fdt_node_check_compatible(gd->fdt_blob, 0,
|
|
of_match->compatible);
|
|
if (!ret) {
|
|
mm = (struct mm_region *)of_match->data;
|
|
_rpi_update_mem_map(mm);
|
|
break;
|
|
}
|
|
|
|
of_match++;
|
|
}
|
|
}
|
|
#else
|
|
static void rpi_update_mem_map(void) {}
|
|
#endif
|
|
|
|
unsigned long rpi_bcm283x_base = 0x3f000000;
|
|
|
|
int arch_cpu_init(void)
|
|
{
|
|
icache_enable();
|
|
|
|
return 0;
|
|
}
|
|
|
|
int mach_cpu_init(void)
|
|
{
|
|
int ret, soc_offset;
|
|
u64 io_base, size;
|
|
|
|
rpi_update_mem_map();
|
|
|
|
/* Get IO base from device tree */
|
|
soc_offset = fdt_path_offset(gd->fdt_blob, "/soc");
|
|
if (soc_offset < 0)
|
|
return soc_offset;
|
|
|
|
ret = fdt_read_range((void *)gd->fdt_blob, soc_offset, 0, NULL,
|
|
&io_base, &size);
|
|
if (ret)
|
|
return ret;
|
|
|
|
rpi_bcm283x_base = io_base;
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_ARMV7_LPAE
|
|
void enable_caches(void)
|
|
{
|
|
dcache_enable();
|
|
}
|
|
#endif
|