diff options
Diffstat (limited to 'roms/u-boot/board/renesas/stout/stout.c')
-rw-r--r-- | roms/u-boot/board/renesas/stout/stout.c | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/roms/u-boot/board/renesas/stout/stout.c b/roms/u-boot/board/renesas/stout/stout.c new file mode 100644 index 000000000..3fdf936dd --- /dev/null +++ b/roms/u-boot/board/renesas/stout/stout.c @@ -0,0 +1,145 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * board/renesas/stout/stout.c + * This file is Stout board support. + * + * Copyright (C) 2015 Renesas Electronics Europe GmbH + * Copyright (C) 2015 Renesas Electronics Corporation + * Copyright (C) 2015 Cogent Embedded, Inc. + */ + +#include <common.h> +#include <env.h> +#include <init.h> +#include <malloc.h> +#include <netdev.h> +#include <dm.h> +#include <asm/global_data.h> +#include <dm/platform_data/serial_sh.h> +#include <env_internal.h> +#include <asm/processor.h> +#include <asm/mach-types.h> +#include <asm/io.h> +#include <linux/bitops.h> +#include <linux/delay.h> +#include <linux/errno.h> +#include <asm/arch/sys_proto.h> +#include <asm/gpio.h> +#include <asm/arch/rmobile.h> +#include <asm/arch/rcar-mstp.h> +#include <asm/arch/mmc.h> +#include <asm/arch/sh_sdhi.h> +#include <miiphy.h> +#include <i2c.h> +#include <mmc.h> +#include "qos.h" +#include "cpld.h" + +DECLARE_GLOBAL_DATA_PTR; + +#define CLK2MHZ(clk) (clk / 1000 / 1000) +void s_init(void) +{ + struct rcar_rwdt *rwdt = (struct rcar_rwdt *)RWDT_BASE; + struct rcar_swdt *swdt = (struct rcar_swdt *)SWDT_BASE; + + /* Watchdog init */ + writel(0xA5A5A500, &rwdt->rwtcsra); + writel(0xA5A5A500, &swdt->swtcsra); + + /* CPU frequency setting. Set to 1.4GHz */ + if (rmobile_get_cpu_rev_integer() >= R8A7790_CUT_ES2X) { + u32 stat = 0; + u32 stc = ((1400 / CLK2MHZ(CONFIG_SYS_CLK_FREQ)) - 1) + << PLL0_STC_BIT; + clrsetbits_le32(PLL0CR, PLL0_STC_MASK, stc); + + do { + stat = readl(PLLECR) & PLL0ST; + } while (stat == 0x0); + } + + /* QoS(Quality-of-Service) Init */ + qos_init(); +} + +#define TMU0_MSTP125 BIT(25) + +#define SD2CKCR 0xE6150078 +#define SD2_97500KHZ 0x7 + +int board_early_init_f(void) +{ + /* TMU0 */ + mstp_clrbits_le32(MSTPSR1, SMSTPCR1, TMU0_MSTP125); + + /* + * SD0 clock is set to 97.5MHz by default. + * Set SD2 to the 97.5MHz as well. + */ + writel(SD2_97500KHZ, SD2CKCR); + + return 0; +} + +#define ETHERNET_PHY_RESET 123 /* GPIO 3 31 */ + +int board_init(void) +{ + /* adress of boot parameters */ + gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; + + cpld_init(); + + /* Force ethernet PHY out of reset */ + gpio_request(ETHERNET_PHY_RESET, "phy_reset"); + gpio_direction_output(ETHERNET_PHY_RESET, 0); + mdelay(20); + gpio_direction_output(ETHERNET_PHY_RESET, 1); + + 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; +} + +/* Stout has KSZ8041NL/RNL */ +#define PHY_CONTROL1 0x1E +#define PHY_LED_MODE 0xC000 +#define PHY_LED_MODE_ACK 0x4000 +int board_phy_config(struct phy_device *phydev) +{ + int ret = phy_read(phydev, MDIO_DEVAD_NONE, PHY_CONTROL1); + ret &= ~PHY_LED_MODE; + ret |= PHY_LED_MODE_ACK; + ret = phy_write(phydev, MDIO_DEVAD_NONE, PHY_CONTROL1, (u16)ret); + + return 0; +} + +enum env_location env_get_location(enum env_operation op, int prio) +{ + const u32 load_magic = 0xb33fc0de; + + /* Block environment access if loaded using JTAG */ + if ((readl(CONFIG_SPL_TEXT_BASE + 0x24) == load_magic) && + (op != ENVOP_INIT)) + return ENVL_UNKNOWN; + + if (prio) + return ENVL_UNKNOWN; + + return ENVL_SPI_FLASH; +} |