1 /* 2 * (C) Copyright 2011 3 * Logic Product Development <www.logicpd.com> 4 * 5 * Author : 6 * Peter Barada <peter.barada@logicpd.com> 7 * 8 * Derived from Beagle Board and 3430 SDP code by 9 * Richard Woodruff <r-woodruff2@ti.com> 10 * Syed Mohammed Khasim <khasim@ti.com> 11 * 12 * SPDX-License-Identifier: GPL-2.0+ 13 */ 14 #include <common.h> 15 #include <dm.h> 16 #include <ns16550.h> 17 #include <netdev.h> 18 #include <flash.h> 19 #include <nand.h> 20 #include <i2c.h> 21 #include <twl4030.h> 22 #include <asm/io.h> 23 #include <asm/arch/mmc_host_def.h> 24 #include <asm/arch/mux.h> 25 #include <asm/arch/mem.h> 26 #include <asm/arch/sys_proto.h> 27 #include <asm/gpio.h> 28 #include <asm/mach-types.h> 29 #include <linux/mtd/rawnand.h> 30 #include <asm/omap_musb.h> 31 #include <linux/errno.h> 32 #include <linux/usb/ch9.h> 33 #include <linux/usb/gadget.h> 34 #include <linux/usb/musb.h> 35 #include "omap3logic.h" 36 #ifdef CONFIG_USB_EHCI_HCD 37 #include <usb.h> 38 #include <asm/ehci-omap.h> 39 #endif 40 41 DECLARE_GLOBAL_DATA_PTR; 42 43 /* This is only needed until SPL gets OF support */ 44 #ifdef CONFIG_SPL_BUILD 45 static const struct ns16550_platdata omap3logic_serial = { 46 .base = OMAP34XX_UART1, 47 .reg_shift = 2, 48 .clock = V_NS16550_CLK, 49 .fcr = UART_FCR_DEFVAL, 50 }; 51 52 U_BOOT_DEVICE(omap3logic_uart) = { 53 "ns16550_serial", 54 &omap3logic_serial 55 }; 56 #endif 57 58 /* 59 * two dimensional array of strucures containining board name and Linux 60 * machine IDs; row it selected based on CPU column is slected based 61 * on hsusb0_data5 pin having a pulldown resistor 62 */ 63 static struct board_id { 64 char *name; 65 int machine_id; 66 char *fdtfile; 67 } boards[2][2] = { 68 { 69 { 70 .name = "OMAP35xx SOM LV", 71 .machine_id = MACH_TYPE_OMAP3530_LV_SOM, 72 .fdtfile = "logicpd-som-lv-35xx-devkit.dtb", 73 }, 74 { 75 .name = "OMAP35xx Torpedo", 76 .machine_id = MACH_TYPE_OMAP3_TORPEDO, 77 .fdtfile = "logicpd-torpedo-35xx-devkit.dtb", 78 }, 79 }, 80 { 81 { 82 .name = "DM37xx SOM LV", 83 .fdtfile = "logicpd-som-lv-37xx-devkit.dtb", 84 }, 85 { 86 .name = "DM37xx Torpedo", 87 .fdtfile = "logicpd-torpedo-37xx-devkit.dtb", 88 }, 89 }, 90 }; 91 92 #ifdef CONFIG_SPL_OS_BOOT 93 int spl_start_uboot(void) 94 { 95 /* break into full u-boot on 'c' */ 96 return serial_tstc() && serial_getc() == 'c'; 97 } 98 #endif 99 100 #if defined(CONFIG_SPL_BUILD) 101 /* 102 * Routine: get_board_mem_timings 103 * Description: If we use SPL then there is no x-loader nor config header 104 * so we have to setup the DDR timings ourself on the first bank. This 105 * provides the timing values back to the function that configures 106 * the memory. 107 */ 108 void get_board_mem_timings(struct board_sdrc_timings *timings) 109 { 110 timings->mr = MICRON_V_MR_165; 111 /* 256MB DDR */ 112 timings->mcfg = MICRON_V_MCFG_200(256 << 20); 113 timings->ctrla = MICRON_V_ACTIMA_200; 114 timings->ctrlb = MICRON_V_ACTIMB_200; 115 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz; 116 } 117 #endif 118 119 #ifdef CONFIG_USB_MUSB_OMAP2PLUS 120 static struct musb_hdrc_config musb_config = { 121 .multipoint = 1, 122 .dyn_fifo = 1, 123 .num_eps = 16, 124 .ram_bits = 12, 125 }; 126 127 static struct omap_musb_board_data musb_board_data = { 128 .interface_type = MUSB_INTERFACE_ULPI, 129 }; 130 131 static struct musb_hdrc_platform_data musb_plat = { 132 #if defined(CONFIG_USB_MUSB_HOST) 133 .mode = MUSB_HOST, 134 #elif defined(CONFIG_USB_MUSB_GADGET) 135 .mode = MUSB_PERIPHERAL, 136 #else 137 #error "Please define either CONFIG_USB_MUSB_HOST or CONFIG_USB_MUSB_GADGET" 138 #endif 139 .config = &musb_config, 140 .power = 100, 141 .platform_ops = &omap2430_ops, 142 .board_data = &musb_board_data, 143 }; 144 #endif 145 146 #if defined(CONFIG_USB_EHCI_HCD) && !defined(CONFIG_SPL_BUILD) 147 /* Call usb_stop() before starting the kernel */ 148 void show_boot_progress(int val) 149 { 150 if (val == BOOTSTAGE_ID_RUN_OS) 151 usb_stop(); 152 } 153 154 static struct omap_usbhs_board_data usbhs_bdata = { 155 .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY, 156 .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY, 157 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED 158 }; 159 160 int ehci_hcd_init(int index, enum usb_init_type init, 161 struct ehci_hccr **hccr, struct ehci_hcor **hcor) 162 { 163 return omap_ehci_hcd_init(index, &usbhs_bdata, hccr, hcor); 164 } 165 166 int ehci_hcd_stop(int index) 167 { 168 return omap_ehci_hcd_stop(); 169 } 170 171 #endif /* CONFIG_USB_EHCI_HCD */ 172 173 174 /* 175 * Routine: misc_init_r 176 * Description: Configure board specific parts 177 */ 178 int misc_init_r(void) 179 { 180 twl4030_power_init(); 181 omap_die_id_display(); 182 183 #ifdef CONFIG_USB_MUSB_OMAP2PLUS 184 musb_register(&musb_plat, &musb_board_data, (void *)MUSB_BASE); 185 #endif 186 187 return 0; 188 } 189 190 /* 191 * BOARD_ID_GPIO - GPIO of pin with optional pulldown resistor on SOM LV 192 */ 193 #define BOARD_ID_GPIO 189 /* hsusb0_data5 pin */ 194 195 /* 196 * Routine: board_init 197 * Description: Early hardware init. 198 */ 199 int board_init(void) 200 { 201 gpmc_init(); /* in SRAM or SDRAM, finish GPMC */ 202 203 /* boot param addr */ 204 gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100); 205 206 return 0; 207 } 208 209 #ifdef CONFIG_BOARD_LATE_INIT 210 211 static void unlock_nand(void) 212 { 213 int dev = nand_curr_device; 214 struct mtd_info *mtd; 215 216 mtd = get_nand_dev_by_index(dev); 217 nand_unlock(mtd, 0, mtd->size, 0); 218 } 219 220 int board_late_init(void) 221 { 222 struct board_id *board; 223 unsigned int val; 224 225 /* 226 * To identify between a SOM LV and Torpedo module, 227 * a pulldown resistor is on hsusb0_data5 for the SOM LV module. 228 * Drive the pin (and let it soak), then read it back. 229 * If the pin is still high its a Torpedo. If low its a SOM LV 230 */ 231 232 /* Mux hsusb0_data5 as a GPIO */ 233 MUX_VAL(CP(HSUSB0_DATA5), (IEN | PTD | DIS | M4)); 234 235 if (gpio_request(BOARD_ID_GPIO, "husb0_data5.gpio_189") == 0) { 236 237 /* 238 * Drive BOARD_ID_GPIO - the pulldown resistor on the SOM LV 239 * will drain the voltage. 240 */ 241 gpio_direction_output(BOARD_ID_GPIO, 0); 242 gpio_set_value(BOARD_ID_GPIO, 1); 243 244 /* Let it soak for a bit */ 245 sdelay(0x100); 246 247 /* 248 * Read state of BOARD_ID_GPIO as an input and if its set. 249 * If so the board is a Torpedo 250 */ 251 gpio_direction_input(BOARD_ID_GPIO); 252 val = gpio_get_value(BOARD_ID_GPIO); 253 gpio_free(BOARD_ID_GPIO); 254 255 board = &boards[!!(get_cpu_family() == CPU_OMAP36XX)][!!val]; 256 printf("Board: %s\n", board->name); 257 258 /* Set the machine_id passed to Linux */ 259 if (board->machine_id) 260 gd->bd->bi_arch_number = board->machine_id; 261 262 /* If the user has not set fdtimage, set the default */ 263 if (!env_get("fdtimage")) 264 env_set("fdtimage", board->fdtfile); 265 } 266 267 /* restore hsusb0_data5 pin as hsusb0_data5 */ 268 MUX_VAL(CP(HSUSB0_DATA5), (IEN | PTD | DIS | M0)); 269 270 #ifdef CONFIG_CMD_NAND_LOCK_UNLOCK 271 unlock_nand(); 272 #endif 273 return 0; 274 } 275 #endif 276 277 #if defined(CONFIG_MMC) 278 int board_mmc_init(bd_t *bis) 279 { 280 return omap_mmc_init(0, 0, 0, -1, -1); 281 } 282 #endif 283 284 #if defined(CONFIG_MMC) 285 void board_mmc_power_init(void) 286 { 287 twl4030_power_mmc_init(0); 288 } 289 #endif 290 291 #ifdef CONFIG_SMC911X 292 /* GPMC CS1 settings for Logic SOM LV/Torpedo LAN92xx Ethernet chip */ 293 static const u32 gpmc_lan92xx_config[] = { 294 NET_LAN92XX_GPMC_CONFIG1, 295 NET_LAN92XX_GPMC_CONFIG2, 296 NET_LAN92XX_GPMC_CONFIG3, 297 NET_LAN92XX_GPMC_CONFIG4, 298 NET_LAN92XX_GPMC_CONFIG5, 299 NET_LAN92XX_GPMC_CONFIG6, 300 }; 301 302 int board_eth_init(bd_t *bis) 303 { 304 enable_gpmc_cs_config(gpmc_lan92xx_config, &gpmc_cfg->cs[1], 305 CONFIG_SMC911X_BASE, GPMC_SIZE_16M); 306 307 return smc911x_initialize(0, CONFIG_SMC911X_BASE); 308 } 309 #endif 310 311 312