diff options
Diffstat (limited to 'arch/arm/mach-omap2/board-am3517crane.c')
| -rw-r--r-- | arch/arm/mach-omap2/board-am3517crane.c | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/board-am3517crane.c b/arch/arm/mach-omap2/board-am3517crane.c new file mode 100644 index 00000000000..71acb5ab281 --- /dev/null +++ b/arch/arm/mach-omap2/board-am3517crane.c @@ -0,0 +1,116 @@ +/* + * Support for AM3517/05 Craneboard + * http://www.mistralsolutions.com/products/craneboard.php + * + * Copyright (C) 2010 Mistral Solutions Pvt Ltd. <www.mistralsolutions.com> + * Author: R.Srinath <srinath@mistralsolutions.com> + * + * Based on mach-omap2/board-am3517evm.c + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation version 2. + * + * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind, + * whether express or implied; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/gpio.h> + +#include <mach/hardware.h> +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <asm/mach/map.h> + +#include <plat/board.h> +#include <plat/common.h> +#include <plat/usb.h> + +#include "mux.h" +#include "control.h" + +#define GPIO_USB_POWER 35 +#define GPIO_USB_NRESET 38 + + +/* Board initialization */ +static struct omap_board_config_kernel am3517_crane_config[] __initdata = { +}; + +#ifdef CONFIG_OMAP_MUX +static struct omap_board_mux board_mux[] __initdata = { + { .reg_offset = OMAP_MUX_TERMINATOR }, +}; +#else +#define board_mux NULL +#endif + +static void __init am3517_crane_init_irq(void) +{ + omap_board_config = am3517_crane_config; + omap_board_config_size = ARRAY_SIZE(am3517_crane_config); + + omap2_init_common_infrastructure(); + omap2_init_common_devices(NULL, NULL); + omap_init_irq(); +} + +static struct ehci_hcd_omap_platform_data ehci_pdata __initdata = { + .port_mode[0] = EHCI_HCD_OMAP_MODE_PHY, + .port_mode[1] = EHCI_HCD_OMAP_MODE_UNKNOWN, + .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN, + + .phy_reset = true, + .reset_gpio_port[0] = GPIO_USB_NRESET, + .reset_gpio_port[1] = -EINVAL, + .reset_gpio_port[2] = -EINVAL +}; + +static void __init am3517_crane_init(void) +{ + int ret; + + omap3_mux_init(board_mux, OMAP_PACKAGE_CBB); + omap_serial_init(); + + /* Configure GPIO for EHCI port */ + if (omap_mux_init_gpio(GPIO_USB_NRESET, OMAP_PIN_OUTPUT)) { + pr_err("Can not configure mux for GPIO_USB_NRESET %d\n", + GPIO_USB_NRESET); + return; + } + + if (omap_mux_init_gpio(GPIO_USB_POWER, OMAP_PIN_OUTPUT)) { + pr_err("Can not configure mux for GPIO_USB_POWER %d\n", + GPIO_USB_POWER); + return; + } + + ret = gpio_request(GPIO_USB_POWER, "usb_ehci_enable"); + if (ret < 0) { + pr_err("Can not request GPIO %d\n", GPIO_USB_POWER); + return; + } + + ret = gpio_direction_output(GPIO_USB_POWER, 1); + if (ret < 0) { + gpio_free(GPIO_USB_POWER); + pr_err("Unable to initialize EHCI power\n"); + return; + } + + usb_ehci_init(&ehci_pdata); +} + +MACHINE_START(CRANEBOARD, "AM3517/05 CRANEBOARD") + .boot_params = 0x80000100, + .map_io = omap3_map_io, + .reserve = omap_reserve, + .init_irq = am3517_crane_init_irq, + .init_machine = am3517_crane_init, + .timer = &omap_timer, +MACHINE_END |