Tom Rini | 10e4779 | 2018-05-06 17:58:06 -0400 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0 |
Vladimir Barinov | 8c94627 | 2015-07-20 20:49:59 +0300 | [diff] [blame] | 2 | /* |
| 3 | * board/renesas/stout/stout.c |
| 4 | * This file is Stout board support. |
| 5 | * |
| 6 | * Copyright (C) 2015 Renesas Electronics Europe GmbH |
| 7 | * Copyright (C) 2015 Renesas Electronics Corporation |
| 8 | * Copyright (C) 2015 Cogent Embedded, Inc. |
Vladimir Barinov | 8c94627 | 2015-07-20 20:49:59 +0300 | [diff] [blame] | 9 | */ |
| 10 | |
| 11 | #include <common.h> |
Simon Glass | 0af6e2d | 2019-08-01 09:46:52 -0600 | [diff] [blame] | 12 | #include <env.h> |
Simon Glass | 9758973 | 2020-05-10 11:40:02 -0600 | [diff] [blame] | 13 | #include <init.h> |
Vladimir Barinov | 8c94627 | 2015-07-20 20:49:59 +0300 | [diff] [blame] | 14 | #include <malloc.h> |
| 15 | #include <netdev.h> |
| 16 | #include <dm.h> |
Simon Glass | 3ba929a | 2020-10-30 21:38:53 -0600 | [diff] [blame^] | 17 | #include <asm/global_data.h> |
Vladimir Barinov | 8c94627 | 2015-07-20 20:49:59 +0300 | [diff] [blame] | 18 | #include <dm/platform_data/serial_sh.h> |
Simon Glass | 9d1f619 | 2019-08-02 09:44:25 -0600 | [diff] [blame] | 19 | #include <env_internal.h> |
Vladimir Barinov | 8c94627 | 2015-07-20 20:49:59 +0300 | [diff] [blame] | 20 | #include <asm/processor.h> |
| 21 | #include <asm/mach-types.h> |
| 22 | #include <asm/io.h> |
Simon Glass | 4dcacfc | 2020-05-10 11:40:13 -0600 | [diff] [blame] | 23 | #include <linux/bitops.h> |
Simon Glass | dbd7954 | 2020-05-10 11:40:11 -0600 | [diff] [blame] | 24 | #include <linux/delay.h> |
Masahiro Yamada | 56a931c | 2016-09-21 11:28:55 +0900 | [diff] [blame] | 25 | #include <linux/errno.h> |
Vladimir Barinov | 8c94627 | 2015-07-20 20:49:59 +0300 | [diff] [blame] | 26 | #include <asm/arch/sys_proto.h> |
| 27 | #include <asm/gpio.h> |
| 28 | #include <asm/arch/rmobile.h> |
| 29 | #include <asm/arch/rcar-mstp.h> |
| 30 | #include <asm/arch/mmc.h> |
| 31 | #include <asm/arch/sh_sdhi.h> |
| 32 | #include <miiphy.h> |
| 33 | #include <i2c.h> |
| 34 | #include <mmc.h> |
| 35 | #include "qos.h" |
| 36 | #include "cpld.h" |
| 37 | |
| 38 | DECLARE_GLOBAL_DATA_PTR; |
| 39 | |
| 40 | #define CLK2MHZ(clk) (clk / 1000 / 1000) |
| 41 | void s_init(void) |
| 42 | { |
| 43 | struct rcar_rwdt *rwdt = (struct rcar_rwdt *)RWDT_BASE; |
| 44 | struct rcar_swdt *swdt = (struct rcar_swdt *)SWDT_BASE; |
| 45 | |
| 46 | /* Watchdog init */ |
| 47 | writel(0xA5A5A500, &rwdt->rwtcsra); |
| 48 | writel(0xA5A5A500, &swdt->swtcsra); |
| 49 | |
| 50 | /* CPU frequency setting. Set to 1.4GHz */ |
| 51 | if (rmobile_get_cpu_rev_integer() >= R8A7790_CUT_ES2X) { |
| 52 | u32 stat = 0; |
| 53 | u32 stc = ((1400 / CLK2MHZ(CONFIG_SYS_CLK_FREQ)) - 1) |
| 54 | << PLL0_STC_BIT; |
| 55 | clrsetbits_le32(PLL0CR, PLL0_STC_MASK, stc); |
| 56 | |
| 57 | do { |
| 58 | stat = readl(PLLECR) & PLL0ST; |
| 59 | } while (stat == 0x0); |
| 60 | } |
| 61 | |
| 62 | /* QoS(Quality-of-Service) Init */ |
| 63 | qos_init(); |
| 64 | } |
| 65 | |
Marek Vasut | 3320a22 | 2018-04-12 15:23:46 +0200 | [diff] [blame] | 66 | #define TMU0_MSTP125 BIT(25) |
Vladimir Barinov | 8c94627 | 2015-07-20 20:49:59 +0300 | [diff] [blame] | 67 | |
| 68 | #define SD2CKCR 0xE6150078 |
| 69 | #define SD2_97500KHZ 0x7 |
| 70 | |
| 71 | int board_early_init_f(void) |
| 72 | { |
| 73 | /* TMU0 */ |
| 74 | mstp_clrbits_le32(MSTPSR1, SMSTPCR1, TMU0_MSTP125); |
Vladimir Barinov | 8c94627 | 2015-07-20 20:49:59 +0300 | [diff] [blame] | 75 | |
| 76 | /* |
| 77 | * SD0 clock is set to 97.5MHz by default. |
| 78 | * Set SD2 to the 97.5MHz as well. |
| 79 | */ |
| 80 | writel(SD2_97500KHZ, SD2CKCR); |
| 81 | |
| 82 | return 0; |
| 83 | } |
| 84 | |
Marek Vasut | 3320a22 | 2018-04-12 15:23:46 +0200 | [diff] [blame] | 85 | #define ETHERNET_PHY_RESET 123 /* GPIO 3 31 */ |
| 86 | |
Vladimir Barinov | 8c94627 | 2015-07-20 20:49:59 +0300 | [diff] [blame] | 87 | int board_init(void) |
| 88 | { |
| 89 | /* adress of boot parameters */ |
| 90 | gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; |
| 91 | |
Vladimir Barinov | 8c94627 | 2015-07-20 20:49:59 +0300 | [diff] [blame] | 92 | cpld_init(); |
| 93 | |
Marek Vasut | 3320a22 | 2018-04-12 15:23:46 +0200 | [diff] [blame] | 94 | /* Force ethernet PHY out of reset */ |
| 95 | gpio_request(ETHERNET_PHY_RESET, "phy_reset"); |
| 96 | gpio_direction_output(ETHERNET_PHY_RESET, 0); |
Vladimir Barinov | 8c94627 | 2015-07-20 20:49:59 +0300 | [diff] [blame] | 97 | mdelay(20); |
Marek Vasut | 3320a22 | 2018-04-12 15:23:46 +0200 | [diff] [blame] | 98 | gpio_direction_output(ETHERNET_PHY_RESET, 1); |
Vladimir Barinov | 8c94627 | 2015-07-20 20:49:59 +0300 | [diff] [blame] | 99 | |
| 100 | return 0; |
| 101 | } |
| 102 | |
Marek Vasut | 3320a22 | 2018-04-12 15:23:46 +0200 | [diff] [blame] | 103 | int dram_init(void) |
Vladimir Barinov | 8c94627 | 2015-07-20 20:49:59 +0300 | [diff] [blame] | 104 | { |
Siva Durga Prasad Paladugu | b3d55ea | 2018-07-16 15:56:11 +0530 | [diff] [blame] | 105 | if (fdtdec_setup_mem_size_base() != 0) |
Marek Vasut | 3320a22 | 2018-04-12 15:23:46 +0200 | [diff] [blame] | 106 | return -EINVAL; |
Vladimir Barinov | 8c94627 | 2015-07-20 20:49:59 +0300 | [diff] [blame] | 107 | |
Marek Vasut | 3320a22 | 2018-04-12 15:23:46 +0200 | [diff] [blame] | 108 | return 0; |
| 109 | } |
Vladimir Barinov | 8c94627 | 2015-07-20 20:49:59 +0300 | [diff] [blame] | 110 | |
Marek Vasut | 3320a22 | 2018-04-12 15:23:46 +0200 | [diff] [blame] | 111 | int dram_init_banksize(void) |
| 112 | { |
| 113 | fdtdec_setup_memory_banksize(); |
Vladimir Barinov | 8c94627 | 2015-07-20 20:49:59 +0300 | [diff] [blame] | 114 | |
Marek Vasut | 3320a22 | 2018-04-12 15:23:46 +0200 | [diff] [blame] | 115 | return 0; |
Vladimir Barinov | 8c94627 | 2015-07-20 20:49:59 +0300 | [diff] [blame] | 116 | } |
| 117 | |
| 118 | /* Stout has KSZ8041NL/RNL */ |
| 119 | #define PHY_CONTROL1 0x1E |
Marek Vasut | 9580a45 | 2019-03-30 07:05:09 +0100 | [diff] [blame] | 120 | #define PHY_LED_MODE 0xC000 |
Vladimir Barinov | 8c94627 | 2015-07-20 20:49:59 +0300 | [diff] [blame] | 121 | #define PHY_LED_MODE_ACK 0x4000 |
| 122 | int board_phy_config(struct phy_device *phydev) |
| 123 | { |
| 124 | int ret = phy_read(phydev, MDIO_DEVAD_NONE, PHY_CONTROL1); |
| 125 | ret &= ~PHY_LED_MODE; |
| 126 | ret |= PHY_LED_MODE_ACK; |
| 127 | ret = phy_write(phydev, MDIO_DEVAD_NONE, PHY_CONTROL1, (u16)ret); |
| 128 | |
| 129 | return 0; |
| 130 | } |
| 131 | |
Marek Vasut | 851d74c | 2018-04-17 01:07:23 +0200 | [diff] [blame] | 132 | enum env_location env_get_location(enum env_operation op, int prio) |
| 133 | { |
| 134 | const u32 load_magic = 0xb33fc0de; |
| 135 | |
| 136 | /* Block environment access if loaded using JTAG */ |
| 137 | if ((readl(CONFIG_SPL_TEXT_BASE + 0x24) == load_magic) && |
| 138 | (op != ENVOP_INIT)) |
| 139 | return ENVL_UNKNOWN; |
| 140 | |
| 141 | if (prio) |
| 142 | return ENVL_UNKNOWN; |
| 143 | |
| 144 | return ENVL_SPI_FLASH; |
| 145 | } |