1/* 2 * linux/arch/arm/mach-omap2/board-cm-t3517.c 3 * 4 * Support for the CompuLab CM-T3517 modules 5 * 6 * Copyright (C) 2010 CompuLab, Ltd. 7 * Author: Igor Grinberg <grinberg@compulab.co.il> 8 * 9 * This program is free software; you can redistribute it and/or 10 * modify it under the terms of the GNU General Public License 11 * version 2 as published by the Free Software Foundation. 12 * 13 * This program is distributed in the hope that it will be useful, but 14 * WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 21 * 02110-1301 USA 22 * 23 */ 24 25#include <linux/kernel.h> 26#include <linux/init.h> 27#include <linux/platform_device.h> 28#include <linux/delay.h> 29#include <linux/gpio.h> 30#include <linux/leds.h> 31#include <linux/rtc-v3020.h> 32#include <linux/mtd/mtd.h> 33#include <linux/mtd/nand.h> 34#include <linux/mtd/partitions.h> 35#include <linux/can/platform/ti_hecc.h> 36 37#include <asm/mach-types.h> 38#include <asm/mach/arch.h> 39#include <asm/mach/map.h> 40 41#include <plat/board.h> 42#include "common.h" 43#include <plat/usb.h> 44#include <plat/nand.h> 45#include <plat/gpmc.h> 46 47#include <mach/am35xx.h> 48 49#include "mux.h" 50#include "control.h" 51#include "common-board-devices.h" 52#include "am35xx-emac.h" 53 54#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE) 55static struct gpio_led cm_t3517_leds[] = { 56 [0] = { 57 .gpio = 186, 58 .name = "cm-t3517:green", 59 .default_trigger = "heartbeat", 60 .active_low = 0, 61 }, 62}; 63 64static struct gpio_led_platform_data cm_t3517_led_pdata = { 65 .num_leds = ARRAY_SIZE(cm_t3517_leds), 66 .leds = cm_t3517_leds, 67}; 68 69static struct platform_device cm_t3517_led_device = { 70 .name = "leds-gpio", 71 .id = -1, 72 .dev = { 73 .platform_data = &cm_t3517_led_pdata, 74 }, 75}; 76 77static void __init cm_t3517_init_leds(void) 78{ 79 platform_device_register(&cm_t3517_led_device); 80} 81#else 82static inline void cm_t3517_init_leds(void) {} 83#endif 84 85#if defined(CONFIG_CAN_TI_HECC) || defined(CONFIG_CAN_TI_HECC_MODULE) 86static struct resource cm_t3517_hecc_resources[] = { 87 { 88 .start = AM35XX_IPSS_HECC_BASE, 89 .end = AM35XX_IPSS_HECC_BASE + SZ_16K - 1, 90 .flags = IORESOURCE_MEM, 91 }, 92 { 93 .start = INT_35XX_HECC0_IRQ, 94 .end = INT_35XX_HECC0_IRQ, 95 .flags = IORESOURCE_IRQ, 96 }, 97}; 98 99static struct ti_hecc_platform_data cm_t3517_hecc_pdata = { 100 .scc_hecc_offset = AM35XX_HECC_SCC_HECC_OFFSET, 101 .scc_ram_offset = AM35XX_HECC_SCC_RAM_OFFSET, 102 .hecc_ram_offset = AM35XX_HECC_RAM_OFFSET, 103 .mbx_offset = AM35XX_HECC_MBOX_OFFSET, 104 .int_line = AM35XX_HECC_INT_LINE, 105 .version = AM35XX_HECC_VERSION, 106}; 107 108static struct platform_device cm_t3517_hecc_device = { 109 .name = "ti_hecc", 110 .id = 1, 111 .num_resources = ARRAY_SIZE(cm_t3517_hecc_resources), 112 .resource = cm_t3517_hecc_resources, 113 .dev = { 114 .platform_data = &cm_t3517_hecc_pdata, 115 }, 116}; 117 118static void cm_t3517_init_hecc(void) 119{ 120 platform_device_register(&cm_t3517_hecc_device); 121} 122#else 123static inline void cm_t3517_init_hecc(void) {} 124#endif 125 126#if defined(CONFIG_RTC_DRV_V3020) || defined(CONFIG_RTC_DRV_V3020_MODULE) 127#define RTC_IO_GPIO (153) 128#define RTC_WR_GPIO (154) 129#define RTC_RD_GPIO (53) 130#define RTC_CS_GPIO (163) 131#define RTC_CS_EN_GPIO (160) 132 133struct v3020_platform_data cm_t3517_v3020_pdata = { 134 .use_gpio = 1, 135 .gpio_cs = RTC_CS_GPIO, 136 .gpio_wr = RTC_WR_GPIO, 137 .gpio_rd = RTC_RD_GPIO, 138 .gpio_io = RTC_IO_GPIO, 139}; 140 141static struct platform_device cm_t3517_rtc_device = { 142 .name = "v3020", 143 .id = -1, 144 .dev = { 145 .platform_data = &cm_t3517_v3020_pdata, 146 } 147}; 148 149static void __init cm_t3517_init_rtc(void) 150{ 151 int err; 152 153 err = gpio_request_one(RTC_CS_EN_GPIO, GPIOF_OUT_INIT_HIGH, 154 "rtc cs en"); 155 if (err) { 156 pr_err("CM-T3517: rtc cs en gpio request failed: %d\n", err); 157 return; 158 } 159 160 platform_device_register(&cm_t3517_rtc_device); 161} 162#else 163static inline void cm_t3517_init_rtc(void) {} 164#endif 165 166#if defined(CONFIG_USB_EHCI_HCD) || defined(CONFIG_USB_EHCI_HCD_MODULE) 167#define HSUSB1_RESET_GPIO (146) 168#define HSUSB2_RESET_GPIO (147) 169#define USB_HUB_RESET_GPIO (152) 170 171static struct usbhs_omap_board_data cm_t3517_ehci_pdata __initdata = { 172 .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY, 173 .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY, 174 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED, 175 176 .phy_reset = true, 177 .reset_gpio_port[0] = HSUSB1_RESET_GPIO, 178 .reset_gpio_port[1] = HSUSB2_RESET_GPIO, 179 .reset_gpio_port[2] = -EINVAL, 180}; 181 182static int __init cm_t3517_init_usbh(void) 183{ 184 int err; 185 186 err = gpio_request_one(USB_HUB_RESET_GPIO, GPIOF_OUT_INIT_LOW, 187 "usb hub rst"); 188 if (err) { 189 pr_err("CM-T3517: usb hub rst gpio request failed: %d\n", err); 190 } else { 191 udelay(10); 192 gpio_set_value(USB_HUB_RESET_GPIO, 1); 193 msleep(1); 194 } 195 196 usbhs_init(&cm_t3517_ehci_pdata); 197 198 return 0; 199} 200#else 201static inline int cm_t3517_init_usbh(void) 202{ 203 return 0; 204} 205#endif 206 207#if defined(CONFIG_MTD_NAND_OMAP2) || defined(CONFIG_MTD_NAND_OMAP2_MODULE) 208static struct mtd_partition cm_t3517_nand_partitions[] = { 209 { 210 .name = "xloader", 211 .offset = 0, /* Offset = 0x00000 */ 212 .size = 4 * NAND_BLOCK_SIZE, 213 .mask_flags = MTD_WRITEABLE 214 }, 215 { 216 .name = "uboot", 217 .offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */ 218 .size = 15 * NAND_BLOCK_SIZE, 219 }, 220 { 221 .name = "uboot environment", 222 .offset = MTDPART_OFS_APPEND, /* Offset = 0x260000 */ 223 .size = 2 * NAND_BLOCK_SIZE, 224 }, 225 { 226 .name = "linux", 227 .offset = MTDPART_OFS_APPEND, /* Offset = 0x2A0000 */ 228 .size = 32 * NAND_BLOCK_SIZE, 229 }, 230 { 231 .name = "rootfs", 232 .offset = MTDPART_OFS_APPEND, /* Offset = 0x6A0000 */ 233 .size = MTDPART_SIZ_FULL, 234 }, 235}; 236 237static struct omap_nand_platform_data cm_t3517_nand_data = { 238 .parts = cm_t3517_nand_partitions, 239 .nr_parts = ARRAY_SIZE(cm_t3517_nand_partitions), 240 .cs = 0, 241}; 242 243static void __init cm_t3517_init_nand(void) 244{ 245 if (gpmc_nand_init(&cm_t3517_nand_data) < 0) 246 pr_err("CM-T3517: NAND initialization failed\n"); 247} 248#else 249static inline void cm_t3517_init_nand(void) {} 250#endif 251 252static struct omap_board_config_kernel cm_t3517_config[] __initdata = { 253}; 254 255#ifdef CONFIG_OMAP_MUX 256static struct omap_board_mux board_mux[] __initdata = { 257 /* GPIO186 - Green LED */ 258 OMAP3_MUX(SYS_CLKOUT2, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT), 259 260 /* RTC GPIOs: */ 261 /* IO - GPIO153 */ 262 OMAP3_MUX(MCBSP4_DR, OMAP_MUX_MODE4 | OMAP_PIN_INPUT), 263 /* WR# - GPIO154 */ 264 OMAP3_MUX(MCBSP4_DX, OMAP_MUX_MODE4 | OMAP_PIN_INPUT), 265 /* RD# - GPIO53 */ 266 OMAP3_MUX(GPMC_NCS2, OMAP_MUX_MODE4 | OMAP_PIN_INPUT), 267 /* CS# - GPIO163 */ 268 OMAP3_MUX(UART3_CTS_RCTX, OMAP_MUX_MODE4 | OMAP_PIN_INPUT), 269 /* CS EN - GPIO160 */ 270 OMAP3_MUX(MCBSP_CLKS, OMAP_MUX_MODE4 | OMAP_PIN_INPUT), 271 272 /* HSUSB1 RESET */ 273 OMAP3_MUX(UART2_TX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT), 274 /* HSUSB2 RESET */ 275 OMAP3_MUX(UART2_RX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT), 276 /* CM-T3517 USB HUB nRESET */ 277 OMAP3_MUX(MCBSP4_CLKX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT), 278 279 { .reg_offset = OMAP_MUX_TERMINATOR }, 280}; 281#endif 282 283static void __init cm_t3517_init(void) 284{ 285 omap3_mux_init(board_mux, OMAP_PACKAGE_CBB); 286 omap_serial_init(); 287 omap_sdrc_init(NULL, NULL); 288 omap_board_config = cm_t3517_config; 289 omap_board_config_size = ARRAY_SIZE(cm_t3517_config); 290 cm_t3517_init_leds(); 291 cm_t3517_init_nand(); 292 cm_t3517_init_rtc(); 293 cm_t3517_init_usbh(); 294 cm_t3517_init_hecc(); 295 am35xx_emac_init(AM35XX_DEFAULT_MDIO_FREQUENCY, 1); 296} 297 298MACHINE_START(CM_T3517, "Compulab CM-T3517") 299 .atag_offset = 0x100, 300 .reserve = omap_reserve, 301 .map_io = omap3_map_io, 302 .init_early = am35xx_init_early, 303 .init_irq = omap3_init_irq, 304 .handle_irq = omap3_intc_handle_irq, 305 .init_machine = cm_t3517_init, 306 .timer = &omap3_timer, 307 .restart = omap_prcm_restart, 308MACHINE_END 309