1 // SPDX-License-Identifier: GPL-2.0
3 * board/renesas/stout/stout.c
4 * This file is Stout board support.
6 * Copyright (C) 2015 Renesas Electronics Europe GmbH
7 * Copyright (C) 2015 Renesas Electronics Corporation
8 * Copyright (C) 2015 Cogent Embedded, Inc.
17 #include <dm/platform_data/serial_sh.h>
18 #include <env_internal.h>
19 #include <asm/processor.h>
20 #include <asm/mach-types.h>
22 #include <linux/bitops.h>
23 #include <linux/delay.h>
24 #include <linux/errno.h>
25 #include <asm/arch/sys_proto.h>
27 #include <asm/arch/rmobile.h>
28 #include <asm/arch/rcar-mstp.h>
29 #include <asm/arch/mmc.h>
30 #include <asm/arch/sh_sdhi.h>
37 DECLARE_GLOBAL_DATA_PTR;
39 #define CLK2MHZ(clk) (clk / 1000 / 1000)
42 struct rcar_rwdt *rwdt = (struct rcar_rwdt *)RWDT_BASE;
43 struct rcar_swdt *swdt = (struct rcar_swdt *)SWDT_BASE;
46 writel(0xA5A5A500, &rwdt->rwtcsra);
47 writel(0xA5A5A500, &swdt->swtcsra);
49 /* CPU frequency setting. Set to 1.4GHz */
50 if (rmobile_get_cpu_rev_integer() >= R8A7790_CUT_ES2X) {
52 u32 stc = ((1400 / CLK2MHZ(CONFIG_SYS_CLK_FREQ)) - 1)
54 clrsetbits_le32(PLL0CR, PLL0_STC_MASK, stc);
57 stat = readl(PLLECR) & PLL0ST;
58 } while (stat == 0x0);
61 /* QoS(Quality-of-Service) Init */
65 #define TMU0_MSTP125 BIT(25)
67 #define SD2CKCR 0xE6150078
68 #define SD2_97500KHZ 0x7
70 int board_early_init_f(void)
73 mstp_clrbits_le32(MSTPSR1, SMSTPCR1, TMU0_MSTP125);
76 * SD0 clock is set to 97.5MHz by default.
77 * Set SD2 to the 97.5MHz as well.
79 writel(SD2_97500KHZ, SD2CKCR);
84 #define ETHERNET_PHY_RESET 123 /* GPIO 3 31 */
88 /* adress of boot parameters */
89 gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
93 /* Force ethernet PHY out of reset */
94 gpio_request(ETHERNET_PHY_RESET, "phy_reset");
95 gpio_direction_output(ETHERNET_PHY_RESET, 0);
97 gpio_direction_output(ETHERNET_PHY_RESET, 1);
104 if (fdtdec_setup_mem_size_base() != 0)
110 int dram_init_banksize(void)
112 fdtdec_setup_memory_banksize();
117 /* Stout has KSZ8041NL/RNL */
118 #define PHY_CONTROL1 0x1E
119 #define PHY_LED_MODE 0xC000
120 #define PHY_LED_MODE_ACK 0x4000
121 int board_phy_config(struct phy_device *phydev)
123 int ret = phy_read(phydev, MDIO_DEVAD_NONE, PHY_CONTROL1);
124 ret &= ~PHY_LED_MODE;
125 ret |= PHY_LED_MODE_ACK;
126 ret = phy_write(phydev, MDIO_DEVAD_NONE, PHY_CONTROL1, (u16)ret);
131 enum env_location env_get_location(enum env_operation op, int prio)
133 const u32 load_magic = 0xb33fc0de;
135 /* Block environment access if loaded using JTAG */
136 if ((readl(CONFIG_SPL_TEXT_BASE + 0x24) == load_magic) &&
143 return ENVL_SPI_FLASH;