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/arch/hardware.h> 22 #include <asm/ti-common/davinci_nand.h> 23 #include <asm/arch/emac_defs.h> 24 #include <asm/io.h> 25 #include <asm/arch/davinci_misc.h> 26 #include <asm/gpio.h> 27 #include "../../../drivers/video/da8xx-fb.h" 28 29 DECLARE_GLOBAL_DATA_PTR; 30 31 static const struct da8xx_panel lcd_panel = { 32 /* Casio COM57H531x */ 33 .name = "Casio_COM57H531x", 34 .width = 640, 35 .height = 480, 36 .hfp = 12, 37 .hbp = 144, 38 .hsw = 30, 39 .vfp = 10, 40 .vbp = 35, 41 .vsw = 3, 42 .pxl_clk = 25000000, 43 .invert_pxl_clk = 0, 44 }; 45 46 static const struct display_panel disp_panel = { 47 QVGA, 48 16, 49 16, 50 COLOR_ACTIVE, 51 }; 52 53 static const struct lcd_ctrl_config lcd_cfg = { 54 &disp_panel, 55 .ac_bias = 255, 56 .ac_bias_intrpt = 0, 57 .dma_burst_sz = 16, 58 .bpp = 16, 59 .fdd = 255, 60 .tft_alt_mode = 0, 61 .stn_565_mode = 0, 62 .mono_8bit_mode = 0, 63 .invert_line_clock = 1, 64 .invert_frm_clock = 1, 65 .sync_edge = 0, 66 .sync_ctrl = 1, 67 .raster_order = 0, 68 }; 69 70 /* SPI0 pin muxer settings */ 71 static const struct pinmux_config spi1_pins[] = { 72 { pinmux(5), 1, 1 }, 73 { pinmux(5), 1, 2 }, 74 { pinmux(5), 1, 4 }, 75 { pinmux(5), 1, 5 } 76 }; 77 78 /* I2C pin muxer settings */ 79 static const struct pinmux_config i2c_pins[] = { 80 { pinmux(4), 2, 2 }, 81 { pinmux(4), 2, 3 } 82 }; 83 84 /* UART0 pin muxer settings */ 85 static const struct pinmux_config uart_pins[] = { 86 { pinmux(3), 2, 7 }, 87 { pinmux(3), 2, 6 }, 88 { pinmux(3), 2, 4 }, 89 { pinmux(3), 2, 5 } 90 }; 91 92 #ifdef CONFIG_DRIVER_TI_EMAC 93 #define HAS_RMII 1 94 static const struct pinmux_config emac_pins[] = { 95 { pinmux(14), 8, 2 }, 96 { pinmux(14), 8, 3 }, 97 { pinmux(14), 8, 4 }, 98 { pinmux(14), 8, 5 }, 99 { pinmux(14), 8, 6 }, 100 { pinmux(14), 8, 7 }, 101 { pinmux(15), 8, 1 }, 102 { pinmux(4), 8, 0 }, 103 { pinmux(4), 8, 1 } 104 }; 105 #endif 106 107 #ifdef CONFIG_NAND_DAVINCI 108 const struct pinmux_config nand_pins[] = { 109 { pinmux(7), 1, 0}, /* CS2 */ 110 { pinmux(7), 0, 1}, /* CS3 in three state*/ 111 { pinmux(7), 1, 4 }, /* EMA_WE */ 112 { pinmux(7), 1, 5 }, /* EMA_OE */ 113 { pinmux(9), 1, 0 }, /* EMA_D[7] */ 114 { pinmux(9), 1, 1 }, /* EMA_D[6] */ 115 { pinmux(9), 1, 2 }, /* EMA_D[5] */ 116 { pinmux(9), 1, 3 }, /* EMA_D[4] */ 117 { pinmux(9), 1, 4 }, /* EMA_D[3] */ 118 { pinmux(9), 1, 5 }, /* EMA_D[2] */ 119 { pinmux(9), 1, 6 }, /* EMA_D[1] */ 120 { pinmux(9), 1, 7 }, /* EMA_D[0] */ 121 { pinmux(12), 1, 5 }, /* EMA_A[2] */ 122 { pinmux(12), 1, 6 }, /* EMA_A[1] */ 123 { pinmux(6), 1, 0 } /* EMA_CLK */ 124 }; 125 #endif 126 127 const struct pinmux_config gpio_pins[] = { 128 { pinmux(13), 8, 0 }, /* GPIO6[15] RESETOUTn on SOM*/ 129 { pinmux(13), 8, 5 }, /* GPIO6[10] U0_SW0 on EA20-00101_2*/ 130 { pinmux(13), 8, 3 }, /* GPIO6[12] U0_SW1 on EA20-00101_2*/ 131 { pinmux(19), 8, 5 }, /* GPIO6[1] DISP_ON */ 132 { pinmux(14), 8, 1 } /* GPIO6[6] LCD_B_PWR*/ 133 }; 134 135 const struct pinmux_config lcd_pins[] = { 136 { pinmux(17), 2, 1 }, /* LCD_D_0 */ 137 { pinmux(17), 2, 0 }, /* LCD_D_1 */ 138 { pinmux(16), 2, 7 }, /* LCD_D_2 */ 139 { pinmux(16), 2, 6 }, /* LCD_D_3 */ 140 { pinmux(16), 2, 5 }, /* LCD_D_4 */ 141 { pinmux(16), 2, 4 }, /* LCD_D_5 */ 142 { pinmux(16), 2, 3 }, /* LCD_D_6 */ 143 { pinmux(16), 2, 2 }, /* LCD_D_7 */ 144 { pinmux(18), 2, 1 }, /* LCD_D_8 */ 145 { pinmux(18), 2, 0 }, /* LCD_D_9 */ 146 { pinmux(17), 2, 7 }, /* LCD_D_10 */ 147 { pinmux(17), 2, 6 }, /* LCD_D_11 */ 148 { pinmux(17), 2, 5 }, /* LCD_D_12 */ 149 { pinmux(17), 2, 4 }, /* LCD_D_13 */ 150 { pinmux(17), 2, 3 }, /* LCD_D_14 */ 151 { pinmux(17), 2, 2 }, /* LCD_D_15 */ 152 { pinmux(18), 2, 6 }, /* LCD_PCLK */ 153 { pinmux(19), 2, 0 }, /* LCD_HSYNC */ 154 { pinmux(19), 2, 1 }, /* LCD_VSYNC */ 155 { pinmux(19), 2, 6 }, /* DA850_NLCD_AC_ENB_CS */ 156 }; 157 158 const struct pinmux_config halten_pin[] = { 159 { pinmux(3), 4, 2 } /* GPIO8[6] HALTEN */ 160 }; 161 162 static const struct pinmux_resource pinmuxes[] = { 163 #ifdef CONFIG_SPI_FLASH 164 PINMUX_ITEM(spi1_pins), 165 #endif 166 PINMUX_ITEM(uart_pins), 167 PINMUX_ITEM(i2c_pins), 168 #ifdef CONFIG_NAND_DAVINCI 169 PINMUX_ITEM(nand_pins), 170 #endif 171 #ifdef CONFIG_VIDEO 172 PINMUX_ITEM(lcd_pins), 173 #endif 174 }; 175 176 static const struct lpsc_resource lpsc[] = { 177 { DAVINCI_LPSC_AEMIF }, /* NAND, NOR */ 178 { DAVINCI_LPSC_SPI1 }, /* Serial Flash */ 179 { DAVINCI_LPSC_EMAC }, /* image download */ 180 { DAVINCI_LPSC_UART0 }, /* console */ 181 { DAVINCI_LPSC_GPIO }, 182 { DAVINCI_LPSC_LCDC }, /* LCD */ 183 }; 184 185 int board_early_init_f(void) 186 { 187 /* PinMux for GPIO */ 188 if (davinci_configure_pin_mux(gpio_pins, ARRAY_SIZE(gpio_pins)) != 0) 189 return 1; 190 191 /* Set DISP_ON high to enable LCD output*/ 192 gpio_direction_output(97, 1); 193 194 /* Set the RESETOUTn low */ 195 gpio_direction_output(111, 0); 196 197 /* Set U0_SW0 low for UART0 as console*/ 198 gpio_direction_output(106, 0); 199 200 /* Set U0_SW1 low for UART0 as console*/ 201 gpio_direction_output(108, 0); 202 203 /* Set LCD_B_PWR low to power down LCD Backlight*/ 204 gpio_direction_output(102, 0); 205 206 #ifndef CONFIG_USE_IRQ 207 irq_init(); 208 #endif 209 210 /* 211 * NAND CS setup - cycle counts based on da850evm NAND timings in the 212 * Linux kernel @ 25MHz EMIFA 213 */ 214 #ifdef CONFIG_NAND_DAVINCI 215 writel((DAVINCI_ABCR_WSETUP(0) | 216 DAVINCI_ABCR_WSTROBE(1) | 217 DAVINCI_ABCR_WHOLD(0) | 218 DAVINCI_ABCR_RSETUP(0) | 219 DAVINCI_ABCR_RSTROBE(1) | 220 DAVINCI_ABCR_RHOLD(0) | 221 DAVINCI_ABCR_TA(0) | 222 DAVINCI_ABCR_ASIZE_8BIT), 223 &davinci_emif_regs->ab1cr); /* CS2 */ 224 #endif 225 226 /* 227 * Power on required peripherals 228 * ARM does not have access by default to PSC0 and PSC1 229 * assuming here that the DSP bootloader has set the IOPU 230 * such that PSC access is available to ARM 231 */ 232 if (da8xx_configure_lpsc_items(lpsc, ARRAY_SIZE(lpsc))) 233 return 1; 234 235 /* setup the SUSPSRC for ARM to control emulation suspend */ 236 writel(readl(&davinci_syscfg_regs->suspsrc) & 237 ~(DAVINCI_SYSCFG_SUSPSRC_EMAC | DAVINCI_SYSCFG_SUSPSRC_I2C | 238 DAVINCI_SYSCFG_SUSPSRC_SPI1 | DAVINCI_SYSCFG_SUSPSRC_TIMER0 | 239 DAVINCI_SYSCFG_SUSPSRC_UART0), 240 &davinci_syscfg_regs->suspsrc); 241 242 /* configure pinmux settings */ 243 if (davinci_configure_pin_mux_items(pinmuxes, ARRAY_SIZE(pinmuxes))) 244 return 1; 245 246 #ifdef CONFIG_DRIVER_TI_EMAC 247 if (davinci_configure_pin_mux(emac_pins, ARRAY_SIZE(emac_pins)) != 0) 248 return 1; 249 250 davinci_emac_mii_mode_sel(HAS_RMII); 251 #endif /* CONFIG_DRIVER_TI_EMAC */ 252 253 /* enable the console UART */ 254 writel((DAVINCI_UART_PWREMU_MGMT_FREE | DAVINCI_UART_PWREMU_MGMT_URRST | 255 DAVINCI_UART_PWREMU_MGMT_UTRST), 256 &davinci_uart0_ctrl_regs->pwremu_mgmt); 257 258 /* 259 * Reconfigure the LCDC priority to the highest to ensure that 260 * the throughput/latency requirements for the LCDC are met. 261 */ 262 writel(readl(&davinci_syscfg_regs->mstpri[2]) & 0x0fffffff, 263 &davinci_syscfg_regs->mstpri[2]); 264 265 266 return 0; 267 } 268 269 /* 270 * Do not overwrite the console 271 * Use always serial for U-Boot console 272 */ 273 int overwrite_console(void) 274 { 275 return 1; 276 } 277 278 int board_init(void) 279 { 280 /* arch number of the board */ 281 gd->bd->bi_arch_number = MACH_TYPE_EA20; 282 283 /* address of boot parameters */ 284 gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR; 285 286 da8xx_video_init(&lcd_panel, &lcd_cfg, 16); 287 288 return 0; 289 } 290 291 #ifdef CONFIG_BOARD_LATE_INIT 292 293 int board_late_init(void) 294 { 295 unsigned char buf[2]; 296 int ret; 297 298 /* PinMux for HALTEN */ 299 if (davinci_configure_pin_mux(halten_pin, ARRAY_SIZE(halten_pin)) != 0) 300 return 1; 301 302 /* Set HALTEN to high */ 303 gpio_direction_output(134, 1); 304 305 /* Set fixed contrast settings for LCD via I2C potentiometer */ 306 buf[0] = 0x00; 307 buf[1] = 0xd7; 308 ret = i2c_write(0x2e, 6, 1, buf, 2); 309 if (ret) 310 puts("\nContrast Settings FAILED\n"); 311 312 /* Set LCD_B_PWR high to power up LCD Backlight*/ 313 gpio_set_value(102, 1); 314 return 0; 315 } 316 #endif /* CONFIG_BOARD_LATE_INIT */ 317 318 #ifdef CONFIG_DRIVER_TI_EMAC 319 320 /* 321 * Initializes on-board ethernet controllers. 322 */ 323 int board_eth_init(bd_t *bis) 324 { 325 if (!davinci_emac_initialize()) { 326 printf("Error: Ethernet init failed!\n"); 327 return -1; 328 } 329 330 /* 331 * This board has a RMII PHY. However, the MDC line on the SOM 332 * must not be disabled (there is no MII PHY on the 333 * baseboard) via the GPIO2[6], because this pin 334 * disables at the same time the SPI flash. 335 */ 336 337 return 0; 338 } 339 #endif /* CONFIG_DRIVER_TI_EMAC */ 340