mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-12 14:23:00 +00:00
175f502734
The ATF can pass additional information via the first four registers, x0...x3. The R-Car Gen3 with mainline ATF, register x1 contains pointer to a device tree with platform information. Parse this device tree and extract DRAM size information from it. This is useful on systems where the DRAM size can vary between configurations. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
143 lines
3.3 KiB
C
143 lines
3.3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* board/renesas/salvator-x/salvator-x.c
|
|
* This file is Salvator-X/Salvator-XS board support.
|
|
*
|
|
* Copyright (C) 2015-2017 Renesas Electronics Corporation
|
|
* Copyright (C) 2015 Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <malloc.h>
|
|
#include <netdev.h>
|
|
#include <dm.h>
|
|
#include <dm/platform_data/serial_sh.h>
|
|
#include <asm/processor.h>
|
|
#include <asm/mach-types.h>
|
|
#include <asm/io.h>
|
|
#include <linux/errno.h>
|
|
#include <asm/arch/sys_proto.h>
|
|
#include <asm/gpio.h>
|
|
#include <asm/arch/gpio.h>
|
|
#include <asm/arch/rmobile.h>
|
|
#include <asm/arch/rcar-mstp.h>
|
|
#include <asm/arch/sh_sdhi.h>
|
|
#include <i2c.h>
|
|
#include <mmc.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
void s_init(void)
|
|
{
|
|
}
|
|
|
|
#define DVFS_MSTP926 BIT(26)
|
|
#define HSUSB_MSTP704 BIT(4) /* HSUSB */
|
|
|
|
int board_early_init_f(void)
|
|
{
|
|
#if defined(CONFIG_SYS_I2C) && defined(CONFIG_SYS_I2C_SH)
|
|
/* DVFS for reset */
|
|
mstp_clrbits_le32(SMSTPCR9, SMSTPCR9, DVFS_MSTP926);
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
/* HSUSB block registers */
|
|
#define HSUSB_REG_LPSTS 0xE6590102
|
|
#define HSUSB_REG_LPSTS_SUSPM_NORMAL BIT(14)
|
|
#define HSUSB_REG_UGCTRL2 0xE6590184
|
|
#define HSUSB_REG_UGCTRL2_USB0SEL 0x30
|
|
#define HSUSB_REG_UGCTRL2_USB0SEL_EHCI 0x10
|
|
|
|
int board_init(void)
|
|
{
|
|
/* adress of boot parameters */
|
|
gd->bd->bi_boot_params = CONFIG_SYS_TEXT_BASE + 0x50000;
|
|
|
|
/* USB1 pull-up */
|
|
setbits_le32(PFC_PUEN6, PUEN_USB1_OVC | PUEN_USB1_PWEN);
|
|
|
|
/* Configure the HSUSB block */
|
|
mstp_clrbits_le32(SMSTPCR7, SMSTPCR7, HSUSB_MSTP704);
|
|
/* Choice USB0SEL */
|
|
clrsetbits_le32(HSUSB_REG_UGCTRL2, HSUSB_REG_UGCTRL2_USB0SEL,
|
|
HSUSB_REG_UGCTRL2_USB0SEL_EHCI);
|
|
/* low power status */
|
|
setbits_le16(HSUSB_REG_LPSTS, HSUSB_REG_LPSTS_SUSPM_NORMAL);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* 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;
|
|
}
|
|
|
|
#define RST_BASE 0xE6160000
|
|
#define RST_CA57RESCNT (RST_BASE + 0x40)
|
|
#define RST_CA53RESCNT (RST_BASE + 0x44)
|
|
#define RST_RSTOUTCR (RST_BASE + 0x58)
|
|
#define RST_CODE 0xA5A5000F
|
|
|
|
void reset_cpu(ulong addr)
|
|
{
|
|
#if defined(CONFIG_SYS_I2C) && defined(CONFIG_SYS_I2C_SH)
|
|
i2c_reg_write(CONFIG_SYS_I2C_POWERIC_ADDR, 0x20, 0x80);
|
|
#else
|
|
/* only CA57 ? */
|
|
writel(RST_CODE, RST_CA57RESCNT);
|
|
#endif
|
|
}
|
|
|
|
#ifdef CONFIG_MULTI_DTB_FIT
|
|
int board_fit_config_name_match(const char *name)
|
|
{
|
|
/* PRR driver is not available yet */
|
|
u32 cpu_type = rmobile_get_cpu_type();
|
|
|
|
if ((cpu_type == RMOBILE_CPU_TYPE_R8A7795) &&
|
|
!strcmp(name, "r8a7795-salvator-x-u-boot"))
|
|
return 0;
|
|
|
|
if ((cpu_type == RMOBILE_CPU_TYPE_R8A7796) &&
|
|
!strcmp(name, "r8a7796-salvator-x-u-boot"))
|
|
return 0;
|
|
|
|
if ((cpu_type == RMOBILE_CPU_TYPE_R8A77965) &&
|
|
!strcmp(name, "r8a77965-salvator-x-u-boot"))
|
|
return 0;
|
|
|
|
return -1;
|
|
}
|
|
#endif
|