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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2017 Tuomas Tynkkynen
*/
#include <common.h>
#include <cpu_func.h>
#include <dm.h>
#include <fdtdec.h>
#include <init.h>
#include <log.h>
#include <virtio_types.h>
#include <virtio.h>
#ifdef CONFIG_ARM64
#include <asm/armv8/mmu.h>
static struct mm_region qemu_arm64_mem_map[] = {
{
/* Flash */
.virt = 0x00000000UL,
.phys = 0x00000000UL,
.size = 0x08000000UL,
.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
PTE_BLOCK_INNER_SHARE
}, {
/* Lowmem peripherals */
.virt = 0x08000000UL,
.phys = 0x08000000UL,
.size = 0x38000000,
.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
PTE_BLOCK_NON_SHARE |
PTE_BLOCK_PXN | PTE_BLOCK_UXN
}, {
/* RAM */
.virt = 0x40000000UL,
.phys = 0x40000000UL,
.size = 255UL * SZ_1G,
.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
PTE_BLOCK_INNER_SHARE
}, {
/* Highmem PCI-E ECAM memory area */
.virt = 0x4010000000ULL,
.phys = 0x4010000000ULL,
.size = 0x10000000,
.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
PTE_BLOCK_NON_SHARE |
PTE_BLOCK_PXN | PTE_BLOCK_UXN
}, {
/* Highmem PCI-E MMIO memory area */
.virt = 0x8000000000ULL,
.phys = 0x8000000000ULL,
.size = 0x8000000000ULL,
.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 = qemu_arm64_mem_map;
#endif
int board_init(void)
{
return 0;
}
int board_late_init(void)
{
/*
* Make sure virtio bus is enumerated so that peripherals
* on the virtio bus can be discovered by their drivers
*/
virtio_init();
return 0;
}
int dram_init(void)
{
if (fdtdec_setup_mem_size_base() != 0)
return -EINVAL;
return 0;
}
int dram_init_banksize(void)
{
fdtdec_setup_memory_banksize();
return 0;
}
void *board_fdt_blob_setup(void)
{
/* QEMU loads a generated DTB for us at the start of RAM. */
return (void *)CONFIG_SYS_SDRAM_BASE;
}
void enable_caches(void)
{
icache_enable();
dcache_enable();
}
#if defined(CONFIG_EFI_RNG_PROTOCOL)
#include <efi_loader.h>
#include <efi_rng.h>
#include <dm/device-internal.h>
efi_status_t platform_get_rng_device(struct udevice **dev)
{
int ret;
efi_status_t status = EFI_DEVICE_ERROR;
struct udevice *bus, *devp;
for (uclass_first_device(UCLASS_VIRTIO, &bus); bus;
uclass_next_device(&bus)) {
for (device_find_first_child(bus, &devp); devp;
device_find_next_child(&devp)) {
if (device_get_uclass_id(devp) == UCLASS_RNG) {
*dev = devp;
status = EFI_SUCCESS;
break;
}
}
}
if (status != EFI_SUCCESS) {
debug("No rng device found\n");
return EFI_DEVICE_ERROR;
}
if (*dev) {
ret = device_probe(*dev);
if (ret)
return EFI_DEVICE_ERROR;
} else {
debug("Couldn't get child device\n");
return EFI_DEVICE_ERROR;
}
return EFI_SUCCESS;
}
#endif /* CONFIG_EFI_RNG_PROTOCOL */
#ifdef CONFIG_ARM64
#define __W "w"
#else
#define __W
#endif
u8 flash_read8(void *addr)
{
u8 ret;
asm("ldrb %" __W "0, %1" : "=r"(ret) : "m"(*(u8 *)addr));
return ret;
}
u16 flash_read16(void *addr)
{
u16 ret;
asm("ldrh %" __W "0, %1" : "=r"(ret) : "m"(*(u16 *)addr));
return ret;
}
u32 flash_read32(void *addr)
{
u32 ret;
asm("ldr %" __W "0, %1" : "=r"(ret) : "m"(*(u32 *)addr));
return ret;
}
void flash_write8(u8 value, void *addr)
{
asm("strb %" __W "1, %0" : "=m"(*(u8 *)addr) : "r"(value));
}
void flash_write16(u16 value, void *addr)
{
asm("strh %" __W "1, %0" : "=m"(*(u16 *)addr) : "r"(value));
}
void flash_write32(u32 value, void *addr)
{
asm("str %" __W "1, %0" : "=m"(*(u32 *)addr) : "r"(value));
}
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