1 /* 2 * Copyright (C) 2013 Freescale Semiconductor, Inc. 3 * 4 * Author: Fabio Estevam <fabio.estevam@freescale.com> 5 * 6 * SPDX-License-Identifier: GPL-2.0+ 7 */ 8 9 #include <asm/arch/clock.h> 10 #include <asm/arch/crm_regs.h> 11 #include <asm/arch/iomux.h> 12 #include <asm/arch/imx-regs.h> 13 #include <asm/arch/mx6-pins.h> 14 #include <asm/arch/mxc_hdmi.h> 15 #include <asm/arch/sys_proto.h> 16 #include <asm/gpio.h> 17 #include <asm/imx-common/iomux-v3.h> 18 #include <asm/imx-common/boot_mode.h> 19 #include <asm/io.h> 20 #include <linux/sizes.h> 21 #include <common.h> 22 #include <fsl_esdhc.h> 23 #include <ipu_pixfmt.h> 24 #include <mmc.h> 25 #include <miiphy.h> 26 #include <netdev.h> 27 #include <linux/fb.h> 28 29 DECLARE_GLOBAL_DATA_PTR; 30 31 #define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | \ 32 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \ 33 PAD_CTL_SRE_FAST | PAD_CTL_HYS) 34 35 #define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP | \ 36 PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm | \ 37 PAD_CTL_SRE_FAST | PAD_CTL_HYS) 38 39 #define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | \ 40 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS) 41 42 #define USDHC1_CD_GPIO IMX_GPIO_NR(1, 2) 43 #define USDHC3_CD_GPIO IMX_GPIO_NR(3, 9) 44 #define ETH_PHY_RESET IMX_GPIO_NR(3, 29) 45 46 int dram_init(void) 47 { 48 gd->ram_size = (phys_size_t)CONFIG_DDR_MB * 1024 * 1024; 49 50 return 0; 51 } 52 53 static iomux_v3_cfg_t const uart1_pads[] = { 54 MX6_PAD_CSI0_DAT10__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL), 55 MX6_PAD_CSI0_DAT11__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL), 56 }; 57 58 iomux_v3_cfg_t const usdhc1_pads[] = { 59 MX6_PAD_SD1_CLK__SD1_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), 60 MX6_PAD_SD1_CMD__SD1_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), 61 MX6_PAD_SD1_DAT0__SD1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 62 MX6_PAD_SD1_DAT1__SD1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 63 MX6_PAD_SD1_DAT2__SD1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 64 MX6_PAD_SD1_DAT3__SD1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 65 /* Carrier MicroSD Card Detect */ 66 MX6_PAD_GPIO_2__GPIO1_IO02 | MUX_PAD_CTRL(NO_PAD_CTRL), 67 }; 68 69 static iomux_v3_cfg_t const usdhc3_pads[] = { 70 MX6_PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), 71 MX6_PAD_SD3_CMD__SD3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), 72 MX6_PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 73 MX6_PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 74 MX6_PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 75 MX6_PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 76 /* SOM MicroSD Card Detect */ 77 MX6_PAD_EIM_DA9__GPIO3_IO09 | MUX_PAD_CTRL(NO_PAD_CTRL), 78 }; 79 80 static iomux_v3_cfg_t const enet_pads[] = { 81 MX6_PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL), 82 MX6_PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL), 83 MX6_PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL), 84 MX6_PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL), 85 MX6_PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL), 86 MX6_PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL), 87 MX6_PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL), 88 MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL), 89 MX6_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL), 90 MX6_PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL), 91 MX6_PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL), 92 MX6_PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL), 93 MX6_PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL), 94 MX6_PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL), 95 MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL), 96 /* AR8031 PHY Reset */ 97 MX6_PAD_EIM_D29__GPIO3_IO29 | MUX_PAD_CTRL(NO_PAD_CTRL), 98 }; 99 100 static void setup_iomux_uart(void) 101 { 102 imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads)); 103 } 104 105 static void setup_iomux_enet(void) 106 { 107 imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads)); 108 109 /* Reset AR8031 PHY */ 110 gpio_direction_output(ETH_PHY_RESET, 0); 111 udelay(500); 112 gpio_set_value(ETH_PHY_RESET, 1); 113 } 114 115 static struct fsl_esdhc_cfg usdhc_cfg[2] = { 116 {USDHC3_BASE_ADDR}, 117 {USDHC1_BASE_ADDR}, 118 }; 119 120 int board_mmc_getcd(struct mmc *mmc) 121 { 122 struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv; 123 int ret = 0; 124 125 switch (cfg->esdhc_base) { 126 case USDHC1_BASE_ADDR: 127 ret = !gpio_get_value(USDHC1_CD_GPIO); 128 break; 129 case USDHC3_BASE_ADDR: 130 ret = !gpio_get_value(USDHC3_CD_GPIO); 131 break; 132 } 133 134 return ret; 135 } 136 137 int board_mmc_init(bd_t *bis) 138 { 139 s32 status = 0; 140 u32 index = 0; 141 142 /* 143 * Following map is done: 144 * (U-boot device node) (Physical Port) 145 * mmc0 SOM MicroSD 146 * mmc1 Carrier board MicroSD 147 */ 148 for (index = 0; index < CONFIG_SYS_FSL_USDHC_NUM; ++index) { 149 switch (index) { 150 case 0: 151 imx_iomux_v3_setup_multiple_pads( 152 usdhc3_pads, ARRAY_SIZE(usdhc3_pads)); 153 usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK); 154 usdhc_cfg[0].max_bus_width = 4; 155 gpio_direction_input(USDHC3_CD_GPIO); 156 break; 157 case 1: 158 imx_iomux_v3_setup_multiple_pads( 159 usdhc1_pads, ARRAY_SIZE(usdhc1_pads)); 160 usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK); 161 usdhc_cfg[1].max_bus_width = 4; 162 gpio_direction_input(USDHC1_CD_GPIO); 163 break; 164 default: 165 printf("Warning: you configured more USDHC controllers" 166 "(%d) then supported by the board (%d)\n", 167 index + 1, CONFIG_SYS_FSL_USDHC_NUM); 168 return status; 169 } 170 171 status |= fsl_esdhc_initialize(bis, &usdhc_cfg[index]); 172 } 173 174 return status; 175 } 176 177 static int mx6_rgmii_rework(struct phy_device *phydev) 178 { 179 unsigned short val; 180 181 /* To enable AR8031 ouput a 125MHz clk from CLK_25M */ 182 phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x7); 183 phy_write(phydev, MDIO_DEVAD_NONE, 0xe, 0x8016); 184 phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x4007); 185 186 val = phy_read(phydev, MDIO_DEVAD_NONE, 0xe); 187 val &= 0xffe3; 188 val |= 0x18; 189 phy_write(phydev, MDIO_DEVAD_NONE, 0xe, val); 190 191 /* introduce tx clock delay */ 192 phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x5); 193 val = phy_read(phydev, MDIO_DEVAD_NONE, 0x1e); 194 val |= 0x0100; 195 phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, val); 196 197 return 0; 198 } 199 200 int board_phy_config(struct phy_device *phydev) 201 { 202 mx6_rgmii_rework(phydev); 203 204 if (phydev->drv->config) 205 phydev->drv->config(phydev); 206 207 return 0; 208 } 209 210 #if defined(CONFIG_VIDEO_IPUV3) 211 static struct fb_videomode const hdmi = { 212 .name = "HDMI", 213 .refresh = 60, 214 .xres = 1024, 215 .yres = 768, 216 .pixclock = 15385, 217 .left_margin = 220, 218 .right_margin = 40, 219 .upper_margin = 21, 220 .lower_margin = 7, 221 .hsync_len = 60, 222 .vsync_len = 10, 223 .sync = FB_SYNC_EXT, 224 .vmode = FB_VMODE_NONINTERLACED 225 }; 226 227 int board_video_skip(void) 228 { 229 int ret; 230 231 ret = ipuv3_fb_init(&hdmi, 0, IPU_PIX_FMT_RGB24); 232 233 if (ret) { 234 printf("HDMI cannot be configured: %d\n", ret); 235 return ret; 236 } 237 238 imx_enable_hdmi_phy(); 239 240 return ret; 241 } 242 243 static void setup_display(void) 244 { 245 struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR; 246 int reg; 247 248 enable_ipu_clock(); 249 imx_setup_hdmi(); 250 251 reg = readl(&mxc_ccm->chsccdr); 252 reg |= (CHSCCDR_CLK_SEL_LDB_DI0 253 << MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_OFFSET); 254 writel(reg, &mxc_ccm->chsccdr); 255 } 256 #endif /* CONFIG_VIDEO_IPUV3 */ 257 258 int board_eth_init(bd_t *bis) 259 { 260 setup_iomux_enet(); 261 262 return cpu_eth_init(bis); 263 } 264 265 int board_early_init_f(void) 266 { 267 setup_iomux_uart(); 268 #if defined(CONFIG_VIDEO_IPUV3) 269 setup_display(); 270 #endif 271 return 0; 272 } 273 274 /* 275 * Do not overwrite the console 276 * Use always serial for U-Boot console 277 */ 278 int overwrite_console(void) 279 { 280 return 1; 281 } 282 283 #ifdef CONFIG_CMD_BMODE 284 static const struct boot_mode board_boot_modes[] = { 285 /* 4 bit bus width */ 286 {"mmc0", MAKE_CFGVAL(0x40, 0x30, 0x00, 0x00)}, 287 {"mmc1", MAKE_CFGVAL(0x40, 0x20, 0x00, 0x00)}, 288 {NULL, 0}, 289 }; 290 #endif 291 292 int board_late_init(void) 293 { 294 #ifdef CONFIG_CMD_BMODE 295 add_board_boot_modes(board_boot_modes); 296 #endif 297 298 return 0; 299 } 300 301 int board_init(void) 302 { 303 /* address of boot parameters */ 304 gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; 305 306 return 0; 307 } 308 309 int checkboard(void) 310 { 311 puts("Board: Wandboard\n"); 312 313 return 0; 314 } 315