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// SPDX-License-Identifier: GPL-2.0
/*
* board/renesas/rcar-common/common.c
*
* Copyright (C) 2013 Renesas Electronics Corporation
* Copyright (C) 2013 Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
* Copyright (C) 2015 Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
*/
#include <common.h>
#include <dm.h>
#include <dm/uclass-internal.h>
#include <asm/arch/rmobile.h>
#include <linux/libfdt.h>
#ifdef CONFIG_RCAR_GEN3
DECLARE_GLOBAL_DATA_PTR;
/* If the firmware passed a device tree use it for U-Boot DRAM setup. */
extern u64 rcar_atf_boot_args[];
int dram_init(void)
{
const void *atf_fdt_blob = (const void *)(rcar_atf_boot_args[1]);
const void *blob;
/* Check if ATF passed us DTB. If not, fall back to builtin DTB. */
if (fdt_magic(atf_fdt_blob) == FDT_MAGIC)
blob = atf_fdt_blob;
else
blob = gd->fdt_blob;
return fdtdec_setup_mem_size_base_fdt(blob);
}
int dram_init_banksize(void)
{
const void *atf_fdt_blob = (const void *)(rcar_atf_boot_args[1]);
const void *blob;
/* Check if ATF passed us DTB. If not, fall back to builtin DTB. */
if (fdt_magic(atf_fdt_blob) == FDT_MAGIC)
blob = atf_fdt_blob;
else
blob = gd->fdt_blob;
fdtdec_setup_memory_banksize_fdt(blob);
return 0;
}
#if CONFIG_IS_ENABLED(OF_BOARD_SETUP) && CONFIG_IS_ENABLED(PCI)
int ft_board_setup(void *blob, bd_t *bd)
{
struct udevice *dev;
struct uclass *uc;
fdt_addr_t regs_addr;
int i, off, ret;
ret = uclass_get(UCLASS_PCI, &uc);
if (ret)
return ret;
uclass_foreach_dev(dev, uc) {
struct pci_controller hose = { 0 };
for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
if (hose.region_count == MAX_PCI_REGIONS) {
printf("maximum number of regions parsed, aborting\n");
break;
}
if (bd->bi_dram[i].size) {
pci_set_region(&hose.regions[hose.region_count++],
bd->bi_dram[i].start,
bd->bi_dram[i].start,
bd->bi_dram[i].size,
PCI_REGION_MEM |
PCI_REGION_PREFETCH |
PCI_REGION_SYS_MEMORY);
}
}
regs_addr = devfdt_get_addr_index(dev, 0);
off = fdt_node_offset_by_compat_reg(blob,
"renesas,pcie-rcar-gen3", regs_addr);
if (off < 0) {
printf("Failed to find PCIe node@%llx\n", regs_addr);
return off;
}
fdt_pci_dma_ranges(blob, off, &hose);
}
return 0;
}
#endif
#endif
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