1 /* 2 * (C) Copyright 2010 3 * Stefano Babic, DENX Software Engineering, sbabic@denx.de 4 * 5 * Based on da850evm.c, original Copyrights follow: 6 * 7 * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/ 8 * 9 * Based on da830evm.c. Original Copyrights follow: 10 * 11 * Copyright (C) 2009 Nick Thompson, GE Fanuc, Ltd. <nick.thompson@gefanuc.com> 12 * Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net> 13 * 14 * SPDX-License-Identifier: GPL-2.0+ 15 */ 16 17 #include <common.h> 18 #include <i2c.h> 19 #include <net.h> 20 #include <netdev.h> 21 #include <asm/mach-types.h> 22 #include <asm/arch/hardware.h> 23 #include <asm/ti-common/davinci_nand.h> 24 #include <asm/arch/emac_defs.h> 25 #include <asm/io.h> 26 #include <asm/arch/davinci_misc.h> 27 #include <asm/gpio.h> 28 #include "../../../drivers/video/da8xx-fb.h" 29 30 DECLARE_GLOBAL_DATA_PTR; 31 32 static const struct da8xx_panel lcd_panel = { 33 /* Casio COM57H531x */ 34 .name = "Casio_COM57H531x", 35 .width = 640, 36 .height = 480, 37 .hfp = 12, 38 .hbp = 144, 39 .hsw = 30, 40 .vfp = 10, 41 .vbp = 35, 42 .vsw = 3, 43 .pxl_clk = 25000000, 44 .invert_pxl_clk = 0, 45 }; 46 47 static const struct display_panel disp_panel = { 48 QVGA, 49 16, 50 16, 51 COLOR_ACTIVE, 52 }; 53 54 static const struct lcd_ctrl_config lcd_cfg = { 55 &disp_panel, 56 .ac_bias = 255, 57 .ac_bias_intrpt = 0, 58 .dma_burst_sz = 16, 59 .bpp = 16, 60 .fdd = 255, 61 .tft_alt_mode = 0, 62 .stn_565_mode = 0, 63 .mono_8bit_mode = 0, 64 .invert_line_clock = 1, 65 .invert_frm_clock = 1, 66 .sync_edge = 0, 67 .sync_ctrl = 1, 68 .raster_order = 0, 69 }; 70 71 /* SPI0 pin muxer settings */ 72 static const struct pinmux_config spi1_pins[] = { 73 { pinmux(5), 1, 1 }, 74 { pinmux(5), 1, 2 }, 75 { pinmux(5), 1, 4 }, 76 { pinmux(5), 1, 5 } 77 }; 78 79 /* I2C pin muxer settings */ 80 static const struct pinmux_config i2c_pins[] = { 81 { pinmux(4), 2, 2 }, 82 { pinmux(4), 2, 3 } 83 }; 84 85 /* UART0 pin muxer settings */ 86 static const struct pinmux_config uart_pins[] = { 87 { pinmux(3), 2, 7 }, 88 { pinmux(3), 2, 6 }, 89 { pinmux(3), 2, 4 }, 90 { pinmux(3), 2, 5 } 91 }; 92 93 #ifdef CONFIG_DRIVER_TI_EMAC 94 #define HAS_RMII 1 95 static const struct pinmux_config emac_pins[] = { 96 { pinmux(14), 8, 2 }, 97 { pinmux(14), 8, 3 }, 98 { pinmux(14), 8, 4 }, 99 { pinmux(14), 8, 5 }, 100 { pinmux(14), 8, 6 }, 101 { pinmux(14), 8, 7 }, 102 { pinmux(15), 8, 1 }, 103 { pinmux(4), 8, 0 }, 104 { pinmux(4), 8, 1 } 105 }; 106 #endif 107 108 #ifdef CONFIG_NAND_DAVINCI 109 const struct pinmux_config nand_pins[] = { 110 { pinmux(7), 1, 0}, /* CS2 */ 111 { pinmux(7), 0, 1}, /* CS3 in three state*/ 112 { pinmux(7), 1, 4 }, /* EMA_WE */ 113 { pinmux(7), 1, 5 }, /* EMA_OE */ 114 { pinmux(9), 1, 0 }, /* EMA_D[7] */ 115 { pinmux(9), 1, 1 }, /* EMA_D[6] */ 116 { pinmux(9), 1, 2 }, /* EMA_D[5] */ 117 { pinmux(9), 1, 3 }, /* EMA_D[4] */ 118 { pinmux(9), 1, 4 }, /* EMA_D[3] */ 119 { pinmux(9), 1, 5 }, /* EMA_D[2] */ 120 { pinmux(9), 1, 6 }, /* EMA_D[1] */ 121 { pinmux(9), 1, 7 }, /* EMA_D[0] */ 122 { pinmux(12), 1, 5 }, /* EMA_A[2] */ 123 { pinmux(12), 1, 6 }, /* EMA_A[1] */ 124 { pinmux(6), 1, 0 } /* EMA_CLK */ 125 }; 126 #endif 127 128 const struct pinmux_config gpio_pins[] = { 129 { pinmux(13), 8, 0 }, /* GPIO6[15] RESETOUTn on SOM*/ 130 { pinmux(13), 8, 5 }, /* GPIO6[10] U0_SW0 on EA20-00101_2*/ 131 { pinmux(13), 8, 3 }, /* GPIO6[12] U0_SW1 on EA20-00101_2*/ 132 { pinmux(19), 8, 5 }, /* GPIO6[1] DISP_ON */ 133 { pinmux(14), 8, 1 } /* GPIO6[6] LCD_B_PWR*/ 134 }; 135 136 const struct pinmux_config lcd_pins[] = { 137 { pinmux(17), 2, 1 }, /* LCD_D_0 */ 138 { pinmux(17), 2, 0 }, /* LCD_D_1 */ 139 { pinmux(16), 2, 7 }, /* LCD_D_2 */ 140 { pinmux(16), 2, 6 }, /* LCD_D_3 */ 141 { pinmux(16), 2, 5 }, /* LCD_D_4 */ 142 { pinmux(16), 2, 4 }, /* LCD_D_5 */ 143 { pinmux(16), 2, 3 }, /* LCD_D_6 */ 144 { pinmux(16), 2, 2 }, /* LCD_D_7 */ 145 { pinmux(18), 2, 1 }, /* LCD_D_8 */ 146 { pinmux(18), 2, 0 }, /* LCD_D_9 */ 147 { pinmux(17), 2, 7 }, /* LCD_D_10 */ 148 { pinmux(17), 2, 6 }, /* LCD_D_11 */ 149 { pinmux(17), 2, 5 }, /* LCD_D_12 */ 150 { pinmux(17), 2, 4 }, /* LCD_D_13 */ 151 { pinmux(17), 2, 3 }, /* LCD_D_14 */ 152 { pinmux(17), 2, 2 }, /* LCD_D_15 */ 153 { pinmux(18), 2, 6 }, /* LCD_PCLK */ 154 { pinmux(19), 2, 0 }, /* LCD_HSYNC */ 155 { pinmux(19), 2, 1 }, /* LCD_VSYNC */ 156 { pinmux(19), 2, 6 }, /* DA850_NLCD_AC_ENB_CS */ 157 }; 158 159 const struct pinmux_config halten_pin[] = { 160 { pinmux(3), 4, 2 } /* GPIO8[6] HALTEN */ 161 }; 162 163 static const struct pinmux_resource pinmuxes[] = { 164 #ifdef CONFIG_SPI_FLASH 165 PINMUX_ITEM(spi1_pins), 166 #endif 167 PINMUX_ITEM(uart_pins), 168 PINMUX_ITEM(i2c_pins), 169 #ifdef CONFIG_NAND_DAVINCI 170 PINMUX_ITEM(nand_pins), 171 #endif 172 #ifdef CONFIG_VIDEO 173 PINMUX_ITEM(lcd_pins), 174 #endif 175 }; 176 177 static const struct lpsc_resource lpsc[] = { 178 { DAVINCI_LPSC_AEMIF }, /* NAND, NOR */ 179 { DAVINCI_LPSC_SPI1 }, /* Serial Flash */ 180 { DAVINCI_LPSC_EMAC }, /* image download */ 181 { DAVINCI_LPSC_UART0 }, /* console */ 182 { DAVINCI_LPSC_GPIO }, 183 { DAVINCI_LPSC_LCDC }, /* LCD */ 184 }; 185 186 int board_early_init_f(void) 187 { 188 /* PinMux for GPIO */ 189 if (davinci_configure_pin_mux(gpio_pins, ARRAY_SIZE(gpio_pins)) != 0) 190 return 1; 191 192 /* Set DISP_ON high to enable LCD output*/ 193 gpio_direction_output(97, 1); 194 195 /* Set the RESETOUTn low */ 196 gpio_direction_output(111, 0); 197 198 /* Set U0_SW0 low for UART0 as console*/ 199 gpio_direction_output(106, 0); 200 201 /* Set U0_SW1 low for UART0 as console*/ 202 gpio_direction_output(108, 0); 203 204 /* Set LCD_B_PWR low to power down LCD Backlight*/ 205 gpio_direction_output(102, 0); 206 207 irq_init(); 208 209 /* 210 * NAND CS setup - cycle counts based on da850evm NAND timings in the 211 * Linux kernel @ 25MHz EMIFA 212 */ 213 #ifdef CONFIG_NAND_DAVINCI 214 writel((DAVINCI_ABCR_WSETUP(0) | 215 DAVINCI_ABCR_WSTROBE(1) | 216 DAVINCI_ABCR_WHOLD(0) | 217 DAVINCI_ABCR_RSETUP(0) | 218 DAVINCI_ABCR_RSTROBE(1) | 219 DAVINCI_ABCR_RHOLD(0) | 220 DAVINCI_ABCR_TA(0) | 221 DAVINCI_ABCR_ASIZE_8BIT), 222 &davinci_emif_regs->ab1cr); /* CS2 */ 223 #endif 224 225 /* 226 * Power on required peripherals 227 * ARM does not have access by default to PSC0 and PSC1 228 * assuming here that the DSP bootloader has set the IOPU 229 * such that PSC access is available to ARM 230 */ 231 if (da8xx_configure_lpsc_items(lpsc, ARRAY_SIZE(lpsc))) 232 return 1; 233 234 /* setup the SUSPSRC for ARM to control emulation suspend */ 235 writel(readl(&davinci_syscfg_regs->suspsrc) & 236 ~(DAVINCI_SYSCFG_SUSPSRC_EMAC | DAVINCI_SYSCFG_SUSPSRC_I2C | 237 DAVINCI_SYSCFG_SUSPSRC_SPI1 | DAVINCI_SYSCFG_SUSPSRC_TIMER0 | 238 DAVINCI_SYSCFG_SUSPSRC_UART0), 239 &davinci_syscfg_regs->suspsrc); 240 241 /* configure pinmux settings */ 242 if (davinci_configure_pin_mux_items(pinmuxes, ARRAY_SIZE(pinmuxes))) 243 return 1; 244 245 #ifdef CONFIG_DRIVER_TI_EMAC 246 if (davinci_configure_pin_mux(emac_pins, ARRAY_SIZE(emac_pins)) != 0) 247 return 1; 248 249 davinci_emac_mii_mode_sel(HAS_RMII); 250 #endif /* CONFIG_DRIVER_TI_EMAC */ 251 252 /* enable the console UART */ 253 writel((DAVINCI_UART_PWREMU_MGMT_FREE | DAVINCI_UART_PWREMU_MGMT_URRST | 254 DAVINCI_UART_PWREMU_MGMT_UTRST), 255 &davinci_uart0_ctrl_regs->pwremu_mgmt); 256 257 /* 258 * Reconfigure the LCDC priority to the highest to ensure that 259 * the throughput/latency requirements for the LCDC are met. 260 */ 261 writel(readl(&davinci_syscfg_regs->mstpri[2]) & 0x0fffffff, 262 &davinci_syscfg_regs->mstpri[2]); 263 264 265 return 0; 266 } 267 268 /* 269 * Do not overwrite the console 270 * Use always serial for U-Boot console 271 */ 272 int overwrite_console(void) 273 { 274 return 1; 275 } 276 277 int board_init(void) 278 { 279 /* arch number of the board */ 280 gd->bd->bi_arch_number = MACH_TYPE_EA20; 281 282 /* address of boot parameters */ 283 gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR; 284 285 da8xx_video_init(&lcd_panel, &lcd_cfg, 16); 286 287 return 0; 288 } 289 290 #ifdef CONFIG_BOARD_LATE_INIT 291 292 int board_late_init(void) 293 { 294 unsigned char buf[2]; 295 int ret; 296 297 /* PinMux for HALTEN */ 298 if (davinci_configure_pin_mux(halten_pin, ARRAY_SIZE(halten_pin)) != 0) 299 return 1; 300 301 /* Set HALTEN to high */ 302 gpio_direction_output(134, 1); 303 304 /* Set fixed contrast settings for LCD via I2C potentiometer */ 305 buf[0] = 0x00; 306 buf[1] = 0xd7; 307 ret = i2c_write(0x2e, 6, 1, buf, 2); 308 if (ret) 309 puts("\nContrast Settings FAILED\n"); 310 311 /* Set LCD_B_PWR high to power up LCD Backlight*/ 312 gpio_set_value(102, 1); 313 return 0; 314 } 315 #endif /* CONFIG_BOARD_LATE_INIT */ 316 317 #ifdef CONFIG_DRIVER_TI_EMAC 318 319 /* 320 * Initializes on-board ethernet controllers. 321 */ 322 int board_eth_init(bd_t *bis) 323 { 324 if (!davinci_emac_initialize()) { 325 printf("Error: Ethernet init failed!\n"); 326 return -1; 327 } 328 329 /* 330 * This board has a RMII PHY. However, the MDC line on the SOM 331 * must not be disabled (there is no MII PHY on the 332 * baseboard) via the GPIO2[6], because this pin 333 * disables at the same time the SPI flash. 334 */ 335 336 return 0; 337 } 338 #endif /* CONFIG_DRIVER_TI_EMAC */ 339