diff options
Diffstat (limited to 'arch/arm/mach-omap2/board-cm-t3517.c')
| -rw-r--r-- | arch/arm/mach-omap2/board-cm-t3517.c | 308 |
1 files changed, 308 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/board-cm-t3517.c b/arch/arm/mach-omap2/board-cm-t3517.c new file mode 100644 index 00000000..9e66e167 --- /dev/null +++ b/arch/arm/mach-omap2/board-cm-t3517.c @@ -0,0 +1,308 @@ +/* + * linux/arch/arm/mach-omap2/board-cm-t3517.c + * + * Support for the CompuLab CM-T3517 modules + * + * Copyright (C) 2010 CompuLab, Ltd. + * Author: Igor Grinberg <grinberg@compulab.co.il> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/delay.h> +#include <linux/gpio.h> +#include <linux/leds.h> +#include <linux/rtc-v3020.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/nand.h> +#include <linux/mtd/partitions.h> +#include <linux/can/platform/ti_hecc.h> + +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <asm/mach/map.h> + +#include <plat/board.h> +#include "common.h" +#include <plat/usb.h> +#include <plat/nand.h> +#include <plat/gpmc.h> + +#include <mach/am35xx.h> + +#include "mux.h" +#include "control.h" +#include "common-board-devices.h" +#include "am35xx-emac.h" + +#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE) +static struct gpio_led cm_t3517_leds[] = { + [0] = { + .gpio = 186, + .name = "cm-t3517:green", + .default_trigger = "heartbeat", + .active_low = 0, + }, +}; + +static struct gpio_led_platform_data cm_t3517_led_pdata = { + .num_leds = ARRAY_SIZE(cm_t3517_leds), + .leds = cm_t3517_leds, +}; + +static struct platform_device cm_t3517_led_device = { + .name = "leds-gpio", + .id = -1, + .dev = { + .platform_data = &cm_t3517_led_pdata, + }, +}; + +static void __init cm_t3517_init_leds(void) +{ + platform_device_register(&cm_t3517_led_device); +} +#else +static inline void cm_t3517_init_leds(void) {} +#endif + +#if defined(CONFIG_CAN_TI_HECC) || defined(CONFIG_CAN_TI_HECC_MODULE) +static struct resource cm_t3517_hecc_resources[] = { + { + .start = AM35XX_IPSS_HECC_BASE, + .end = AM35XX_IPSS_HECC_BASE + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + { + .start = INT_35XX_HECC0_IRQ, + .end = INT_35XX_HECC0_IRQ, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct ti_hecc_platform_data cm_t3517_hecc_pdata = { + .scc_hecc_offset = AM35XX_HECC_SCC_HECC_OFFSET, + .scc_ram_offset = AM35XX_HECC_SCC_RAM_OFFSET, + .hecc_ram_offset = AM35XX_HECC_RAM_OFFSET, + .mbx_offset = AM35XX_HECC_MBOX_OFFSET, + .int_line = AM35XX_HECC_INT_LINE, + .version = AM35XX_HECC_VERSION, +}; + +static struct platform_device cm_t3517_hecc_device = { + .name = "ti_hecc", + .id = 1, + .num_resources = ARRAY_SIZE(cm_t3517_hecc_resources), + .resource = cm_t3517_hecc_resources, + .dev = { + .platform_data = &cm_t3517_hecc_pdata, + }, +}; + +static void cm_t3517_init_hecc(void) +{ + platform_device_register(&cm_t3517_hecc_device); +} +#else +static inline void cm_t3517_init_hecc(void) {} +#endif + +#if defined(CONFIG_RTC_DRV_V3020) || defined(CONFIG_RTC_DRV_V3020_MODULE) +#define RTC_IO_GPIO (153) +#define RTC_WR_GPIO (154) +#define RTC_RD_GPIO (53) +#define RTC_CS_GPIO (163) +#define RTC_CS_EN_GPIO (160) + +struct v3020_platform_data cm_t3517_v3020_pdata = { + .use_gpio = 1, + .gpio_cs = RTC_CS_GPIO, + .gpio_wr = RTC_WR_GPIO, + .gpio_rd = RTC_RD_GPIO, + .gpio_io = RTC_IO_GPIO, +}; + +static struct platform_device cm_t3517_rtc_device = { + .name = "v3020", + .id = -1, + .dev = { + .platform_data = &cm_t3517_v3020_pdata, + } +}; + +static void __init cm_t3517_init_rtc(void) +{ + int err; + + err = gpio_request_one(RTC_CS_EN_GPIO, GPIOF_OUT_INIT_HIGH, + "rtc cs en"); + if (err) { + pr_err("CM-T3517: rtc cs en gpio request failed: %d\n", err); + return; + } + + platform_device_register(&cm_t3517_rtc_device); +} +#else +static inline void cm_t3517_init_rtc(void) {} +#endif + +#if defined(CONFIG_USB_EHCI_HCD) || defined(CONFIG_USB_EHCI_HCD_MODULE) +#define HSUSB1_RESET_GPIO (146) +#define HSUSB2_RESET_GPIO (147) +#define USB_HUB_RESET_GPIO (152) + +static struct usbhs_omap_board_data cm_t3517_ehci_pdata __initdata = { + .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY, + .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY, + .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED, + + .phy_reset = true, + .reset_gpio_port[0] = HSUSB1_RESET_GPIO, + .reset_gpio_port[1] = HSUSB2_RESET_GPIO, + .reset_gpio_port[2] = -EINVAL, +}; + +static int __init cm_t3517_init_usbh(void) +{ + int err; + + err = gpio_request_one(USB_HUB_RESET_GPIO, GPIOF_OUT_INIT_LOW, + "usb hub rst"); + if (err) { + pr_err("CM-T3517: usb hub rst gpio request failed: %d\n", err); + } else { + udelay(10); + gpio_set_value(USB_HUB_RESET_GPIO, 1); + msleep(1); + } + + usbhs_init(&cm_t3517_ehci_pdata); + + return 0; +} +#else +static inline int cm_t3517_init_usbh(void) +{ + return 0; +} +#endif + +#if defined(CONFIG_MTD_NAND_OMAP2) || defined(CONFIG_MTD_NAND_OMAP2_MODULE) +static struct mtd_partition cm_t3517_nand_partitions[] = { + { + .name = "xloader", + .offset = 0, /* Offset = 0x00000 */ + .size = 4 * NAND_BLOCK_SIZE, + .mask_flags = MTD_WRITEABLE + }, + { + .name = "uboot", + .offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */ + .size = 15 * NAND_BLOCK_SIZE, + }, + { + .name = "uboot environment", + .offset = MTDPART_OFS_APPEND, /* Offset = 0x260000 */ + .size = 2 * NAND_BLOCK_SIZE, + }, + { + .name = "linux", + .offset = MTDPART_OFS_APPEND, /* Offset = 0x2A0000 */ + .size = 32 * NAND_BLOCK_SIZE, + }, + { + .name = "rootfs", + .offset = MTDPART_OFS_APPEND, /* Offset = 0x6A0000 */ + .size = MTDPART_SIZ_FULL, + }, +}; + +static struct omap_nand_platform_data cm_t3517_nand_data = { + .parts = cm_t3517_nand_partitions, + .nr_parts = ARRAY_SIZE(cm_t3517_nand_partitions), + .cs = 0, +}; + +static void __init cm_t3517_init_nand(void) +{ + if (gpmc_nand_init(&cm_t3517_nand_data) < 0) + pr_err("CM-T3517: NAND initialization failed\n"); +} +#else +static inline void cm_t3517_init_nand(void) {} +#endif + +static struct omap_board_config_kernel cm_t3517_config[] __initdata = { +}; + +#ifdef CONFIG_OMAP_MUX +static struct omap_board_mux board_mux[] __initdata = { + /* GPIO186 - Green LED */ + OMAP3_MUX(SYS_CLKOUT2, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT), + + /* RTC GPIOs: */ + /* IO - GPIO153 */ + OMAP3_MUX(MCBSP4_DR, OMAP_MUX_MODE4 | OMAP_PIN_INPUT), + /* WR# - GPIO154 */ + OMAP3_MUX(MCBSP4_DX, OMAP_MUX_MODE4 | OMAP_PIN_INPUT), + /* RD# - GPIO53 */ + OMAP3_MUX(GPMC_NCS2, OMAP_MUX_MODE4 | OMAP_PIN_INPUT), + /* CS# - GPIO163 */ + OMAP3_MUX(UART3_CTS_RCTX, OMAP_MUX_MODE4 | OMAP_PIN_INPUT), + /* CS EN - GPIO160 */ + OMAP3_MUX(MCBSP_CLKS, OMAP_MUX_MODE4 | OMAP_PIN_INPUT), + + /* HSUSB1 RESET */ + OMAP3_MUX(UART2_TX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT), + /* HSUSB2 RESET */ + OMAP3_MUX(UART2_RX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT), + /* CM-T3517 USB HUB nRESET */ + OMAP3_MUX(MCBSP4_CLKX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT), + + { .reg_offset = OMAP_MUX_TERMINATOR }, +}; +#endif + +static void __init cm_t3517_init(void) +{ + omap3_mux_init(board_mux, OMAP_PACKAGE_CBB); + omap_serial_init(); + omap_sdrc_init(NULL, NULL); + omap_board_config = cm_t3517_config; + omap_board_config_size = ARRAY_SIZE(cm_t3517_config); + cm_t3517_init_leds(); + cm_t3517_init_nand(); + cm_t3517_init_rtc(); + cm_t3517_init_usbh(); + cm_t3517_init_hecc(); + am35xx_emac_init(AM35XX_DEFAULT_MDIO_FREQUENCY, 1); +} + +MACHINE_START(CM_T3517, "Compulab CM-T3517") + .atag_offset = 0x100, + .reserve = omap_reserve, + .map_io = omap3_map_io, + .init_early = am35xx_init_early, + .init_irq = omap3_init_irq, + .handle_irq = omap3_intc_handle_irq, + .init_machine = cm_t3517_init, + .timer = &omap3_timer, + .restart = omap_prcm_restart, +MACHINE_END |