mirror of
https://github.com/AsahiLinux/u-boot
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a4fc6ee9e7
The reset_cpu() implementation is basically the same across Gen3 SoCs and identical across Gen4 SoCs. Introduce weak default for reset_cpu(), so that it does not have to be duplicated in every board file again. There is a slight difference for CA53 only systems, like E3 and D3, which now check MIDR for CPU ID first just like the other systems, but this is OK since the MIDR always returns CA53 core type and the correct reset register is written. Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
97 lines
2.4 KiB
C
97 lines
2.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* board/renesas/salvator-x/salvator-x.c
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* This file is Salvator-X/Salvator-XS board support.
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*
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* Copyright (C) 2015-2017 Renesas Electronics Corporation
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* Copyright (C) 2015 Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
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*/
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#include <common.h>
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#include <cpu_func.h>
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#include <image.h>
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#include <init.h>
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#include <malloc.h>
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#include <netdev.h>
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#include <dm.h>
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#include <asm/global_data.h>
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#include <dm/platform_data/serial_sh.h>
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#include <asm/processor.h>
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#include <asm/mach-types.h>
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#include <asm/io.h>
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#include <linux/bitops.h>
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#include <linux/errno.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/gpio.h>
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#include <asm/arch/gpio.h>
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#include <asm/arch/rmobile.h>
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#include <asm/arch/rcar-mstp.h>
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#include <asm/arch/sh_sdhi.h>
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#include <i2c.h>
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#include <mmc.h>
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DECLARE_GLOBAL_DATA_PTR;
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#define DVFS_MSTP926 BIT(26)
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#define HSUSB_MSTP704 BIT(4) /* HSUSB */
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int board_early_init_f(void)
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{
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#if CONFIG_IS_ENABLED(SYS_I2C_LEGACY) && defined(CONFIG_SYS_I2C_SH)
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/* DVFS for reset */
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mstp_clrbits_le32(SMSTPCR9, SMSTPCR9, DVFS_MSTP926);
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#endif
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return 0;
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}
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/* HSUSB block registers */
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#define HSUSB_REG_LPSTS 0xE6590102
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#define HSUSB_REG_LPSTS_SUSPM_NORMAL BIT(14)
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#define HSUSB_REG_UGCTRL2 0xE6590184
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#define HSUSB_REG_UGCTRL2_USB0SEL 0x30
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#define HSUSB_REG_UGCTRL2_USB0SEL_EHCI 0x10
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int board_init(void)
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{
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/* USB1 pull-up */
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setbits_le32(PFC_PUEN6, PUEN_USB1_OVC | PUEN_USB1_PWEN);
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/* Configure the HSUSB block */
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mstp_clrbits_le32(SMSTPCR7, SMSTPCR7, HSUSB_MSTP704);
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/* Choice USB0SEL */
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clrsetbits_le32(HSUSB_REG_UGCTRL2, HSUSB_REG_UGCTRL2_USB0SEL,
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HSUSB_REG_UGCTRL2_USB0SEL_EHCI);
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/* low power status */
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setbits_le16(HSUSB_REG_LPSTS, HSUSB_REG_LPSTS_SUSPM_NORMAL);
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return 0;
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}
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#if CONFIG_IS_ENABLED(SYS_I2C_LEGACY) && defined(CONFIG_SYS_I2C_SH)
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void reset_cpu(void)
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{
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i2c_reg_write(CONFIG_SYS_I2C_POWERIC_ADDR, 0x20, 0x80);
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}
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#endif
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#ifdef CONFIG_MULTI_DTB_FIT
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int board_fit_config_name_match(const char *name)
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{
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/* PRR driver is not available yet */
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u32 cpu_type = rmobile_get_cpu_type();
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if ((cpu_type == RMOBILE_CPU_TYPE_R8A7795) &&
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!strcmp(name, "r8a77950-salvator-x-u-boot"))
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return 0;
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if ((cpu_type == RMOBILE_CPU_TYPE_R8A7796) &&
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!strcmp(name, "r8a77960-salvator-x-u-boot"))
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return 0;
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if ((cpu_type == RMOBILE_CPU_TYPE_R8A77965) &&
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!strcmp(name, "r8a77965-salvator-x-u-boot"))
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return 0;
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return -1;
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}
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#endif
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