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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2013
* David Feng <fenghua@phytium.com.cn>
* Sharma Bhupesh <bhupesh.sharma@freescale.com>
*/
#include <common.h>
#include <cpu_func.h>
#include <dm.h>
#include <init.h>
#include <malloc.h>
#include <errno.h>
#include <net.h>
#include <netdev.h>
#include <asm/global_data.h>
#include <asm/io.h>
#include <linux/compiler.h>
#include <linux/sizes.h>
#include <dm/platform_data/serial_pl01x.h>
#include "pcie.h"
#include <asm/armv8/mmu.h>
#ifdef CONFIG_VIRTIO_NET
#include <virtio_types.h>
#include <virtio.h>
#endif
DECLARE_GLOBAL_DATA_PTR;
static const struct pl01x_serial_plat serial_plat = {
.base = V2M_UART0,
.type = TYPE_PL011,
.clock = CFG_PL011_CLOCK,
};
U_BOOT_DRVINFO(vexpress_serials) = {
.name = "serial_pl01x",
.plat = &serial_plat,
};
static struct mm_region vexpress64_mem_map[] = {
{
.virt = V2M_PA_BASE,
.phys = V2M_PA_BASE,
.size = SZ_2G,
.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
PTE_BLOCK_NON_SHARE |
PTE_BLOCK_PXN | PTE_BLOCK_UXN
}, {
.virt = V2M_DRAM_BASE,
.phys = V2M_DRAM_BASE,
.size = SZ_2G,
.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
PTE_BLOCK_INNER_SHARE
}, {
/*
* DRAM beyond 2 GiB is located high. Let's map just some
* of it, although U-Boot won't realistically use it, and
* the actual available amount might be smaller on the model.
*/
.virt = 0x880000000UL, /* 32 + 2 GiB */
.phys = 0x880000000UL,
.size = 6UL * SZ_1G,
.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
PTE_BLOCK_INNER_SHARE
}, {
/* List terminator */
0,
}
};
struct mm_region *mem_map = vexpress64_mem_map;
/* This function gets replaced by platforms supporting PCIe.
* The replacement function, eg. on Juno, initialises the PCIe bus.
*/
__weak void vexpress64_pcie_init(void)
{
}
int board_init(void)
{
vexpress64_pcie_init();
#ifdef CONFIG_VIRTIO_NET
virtio_init();
#endif
return 0;
}
int dram_init(void)
{
return fdtdec_setup_mem_size_base();
}
int dram_init_banksize(void)
{
return fdtdec_setup_memory_banksize();
}
/* Assigned in lowlevel_init.S
* Push the variable into the .data section so that it
* does not get cleared later.
*/
unsigned long __section(".data") prior_stage_fdt_address[2];
#ifdef CONFIG_OF_BOARD
#ifdef CONFIG_TARGET_VEXPRESS64_JUNO
#define JUNO_FLASH_SEC_SIZE (256 * 1024)
static phys_addr_t find_dtb_in_nor_flash(const char *partname)
{
phys_addr_t sector = CFG_SYS_FLASH_BASE;
int i;
for (i = 0;
i < CONFIG_SYS_MAX_FLASH_SECT;
i++, sector += JUNO_FLASH_SEC_SIZE) {
int len = strlen(partname) + 1;
int offs;
phys_addr_t imginfo;
u32 reg;
reg = readl(sector + JUNO_FLASH_SEC_SIZE - 0x04);
/* This makes up the string "HSLFTOOF" flash footer */
if (reg != 0x464F4F54U)
continue;
reg = readl(sector + JUNO_FLASH_SEC_SIZE - 0x08);
if (reg != 0x464C5348U)
continue;
for (offs = 0; offs < 32; offs += 4, len -= 4) {
reg = readl(sector + JUNO_FLASH_SEC_SIZE - 0x30 + offs);
if (strncmp(partname + offs, (char *)®,
len > 4 ? 4 : len))
break;
if (len > 4)
continue;
reg = readl(sector + JUNO_FLASH_SEC_SIZE - 0x10);
imginfo = sector + JUNO_FLASH_SEC_SIZE - 0x30 - reg;
reg = readl(imginfo + 0x54);
return CFG_SYS_FLASH_BASE +
reg * JUNO_FLASH_SEC_SIZE;
}
}
printf("No DTB found\n");
return ~0;
}
#endif
/*
* Filter for a valid DTB, as TF-A happens to provide a pointer to some
* data structure using the DTB format, which we cannot use.
* The address of the DTB cannot be 0, in fact this is the reserved value
* for x1 in the kernel boot protocol.
* And while the nt_fw_config.dtb used by TF-A is a valid DTB structure, it
* does not contain the typical nodes and properties, which we test for by
* probing for the mandatory /memory node.
*/
static bool is_valid_dtb(uintptr_t dtb_ptr)
{
if (dtb_ptr == 0 || fdt_magic(dtb_ptr) != FDT_MAGIC)
return false;
return fdt_subnode_offset((void *)dtb_ptr, 0, "memory") >= 0;
}
void *board_fdt_blob_setup(int *err)
{
#ifdef CONFIG_TARGET_VEXPRESS64_JUNO
phys_addr_t fdt_rom_addr = find_dtb_in_nor_flash(CONFIG_JUNO_DTB_PART);
*err = 0;
if (fdt_rom_addr == ~0UL) {
*err = -ENXIO;
return NULL;
}
return (void *)fdt_rom_addr;
#endif
#ifdef VEXPRESS_FDT_ADDR
if (fdt_magic(VEXPRESS_FDT_ADDR) == FDT_MAGIC) {
*err = 0;
return (void *)VEXPRESS_FDT_ADDR;
}
#endif
if (is_valid_dtb(prior_stage_fdt_address[1])) {
*err = 0;
return (void *)prior_stage_fdt_address[1];
} else if (is_valid_dtb(prior_stage_fdt_address[0])) {
*err = 0;
return (void *)prior_stage_fdt_address[0];
}
if (fdt_magic(gd->fdt_blob) == FDT_MAGIC) {
*err = 0;
return (void *)gd->fdt_blob;
}
*err = -ENXIO;
return NULL;
}
#endif
/* Actual reset is done via PSCI. */
void reset_cpu(void)
{
}
/*
* Board specific ethernet initialization routine.
*/
int board_eth_init(struct bd_info *bis)
{
int rc = 0;
#ifndef CONFIG_DM_ETH
#ifdef CONFIG_SMC911X
rc = smc911x_initialize(0, CFG_SMC911X_BASE);
#endif
#endif
return rc;
}
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