/* * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved. */ /* * 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; either version 2 of the License, or * (at your option) any later version. * 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 Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #include #include #include #include #include #include #include #include #include #include #include #include "crm_regs.h" #include "devices-imx53.h" #define ARD_ETHERNET_INT_B IMX_GPIO_NR(2, 31) #define ARD_SD1_CD IMX_GPIO_NR(1, 1) #define ARD_SD1_WP IMX_GPIO_NR(1, 9) #define ARD_I2CPORTEXP_B IMX_GPIO_NR(2, 3) #define ARD_VOLUMEDOWN IMX_GPIO_NR(4, 0) #define ARD_HOME IMX_GPIO_NR(5, 10) #define ARD_BACK IMX_GPIO_NR(5, 11) #define ARD_PROG IMX_GPIO_NR(5, 12) #define ARD_VOLUMEUP IMX_GPIO_NR(5, 13) static iomux_v3_cfg_t mx53_ard_pads[] = { /* UART1 */ MX53_PAD_PATA_DIOW__UART1_TXD_MUX, MX53_PAD_PATA_DMACK__UART1_RXD_MUX, /* WEIM for CS1 */ MX53_PAD_EIM_EB3__GPIO2_31, /* ETHERNET_INT_B */ MX53_PAD_EIM_D16__EMI_WEIM_D_16, MX53_PAD_EIM_D17__EMI_WEIM_D_17, MX53_PAD_EIM_D18__EMI_WEIM_D_18, MX53_PAD_EIM_D19__EMI_WEIM_D_19, MX53_PAD_EIM_D20__EMI_WEIM_D_20, MX53_PAD_EIM_D21__EMI_WEIM_D_21, MX53_PAD_EIM_D22__EMI_WEIM_D_22, MX53_PAD_EIM_D23__EMI_WEIM_D_23, MX53_PAD_EIM_D24__EMI_WEIM_D_24, MX53_PAD_EIM_D25__EMI_WEIM_D_25, MX53_PAD_EIM_D26__EMI_WEIM_D_26, MX53_PAD_EIM_D27__EMI_WEIM_D_27, MX53_PAD_EIM_D28__EMI_WEIM_D_28, MX53_PAD_EIM_D29__EMI_WEIM_D_29, MX53_PAD_EIM_D30__EMI_WEIM_D_30, MX53_PAD_EIM_D31__EMI_WEIM_D_31, MX53_PAD_EIM_DA0__EMI_NAND_WEIM_DA_0, MX53_PAD_EIM_DA1__EMI_NAND_WEIM_DA_1, MX53_PAD_EIM_DA2__EMI_NAND_WEIM_DA_2, MX53_PAD_EIM_DA3__EMI_NAND_WEIM_DA_3, MX53_PAD_EIM_DA4__EMI_NAND_WEIM_DA_4, MX53_PAD_EIM_DA5__EMI_NAND_WEIM_DA_5, MX53_PAD_EIM_DA6__EMI_NAND_WEIM_DA_6, MX53_PAD_EIM_OE__EMI_WEIM_OE, MX53_PAD_EIM_RW__EMI_WEIM_RW, MX53_PAD_EIM_CS1__EMI_WEIM_CS_1, /* SDHC1 */ MX53_PAD_SD1_CMD__ESDHC1_CMD, MX53_PAD_SD1_CLK__ESDHC1_CLK, MX53_PAD_SD1_DATA0__ESDHC1_DAT0, MX53_PAD_SD1_DATA1__ESDHC1_DAT1, MX53_PAD_SD1_DATA2__ESDHC1_DAT2, MX53_PAD_SD1_DATA3__ESDHC1_DAT3, MX53_PAD_PATA_DATA8__ESDHC1_DAT4, MX53_PAD_PATA_DATA9__ESDHC1_DAT5, MX53_PAD_PATA_DATA10__ESDHC1_DAT6, MX53_PAD_PATA_DATA11__ESDHC1_DAT7, MX53_PAD_GPIO_1__GPIO1_1, MX53_PAD_GPIO_9__GPIO1_9, /* I2C2 */ MX53_PAD_EIM_EB2__I2C2_SCL, MX53_PAD_KEY_ROW3__I2C2_SDA, /* I2C3 */ MX53_PAD_GPIO_3__I2C3_SCL, MX53_PAD_GPIO_16__I2C3_SDA, /* GPIO */ MX53_PAD_DISP0_DAT16__GPIO5_10, /* home */ MX53_PAD_DISP0_DAT17__GPIO5_11, /* back */ MX53_PAD_DISP0_DAT18__GPIO5_12, /* prog */ MX53_PAD_DISP0_DAT19__GPIO5_13, /* vol up */ MX53_PAD_GPIO_10__GPIO4_0, /* vol down */ }; #define GPIO_BUTTON(gpio_num, ev_code, act_low, descr, wake) \ { \ .gpio = gpio_num, \ .type = EV_KEY, \ .code = ev_code, \ .active_low = act_low, \ .desc = "btn " descr, \ .wakeup = wake, \ } static struct gpio_keys_button ard_buttons[] = { GPIO_BUTTON(ARD_HOME, KEY_HOME, 1, "home", 0), GPIO_BUTTON(ARD_BACK, KEY_BACK, 1, "back", 0), GPIO_BUTTON(ARD_PROG, KEY_PROGRAM, 1, "program", 0), GPIO_BUTTON(ARD_VOLUMEUP, KEY_VOLUMEUP, 1, "volume-up", 0), GPIO_BUTTON(ARD_VOLUMEDOWN, KEY_VOLUMEDOWN, 1, "volume-down", 0), }; static const struct gpio_keys_platform_data ard_button_data __initconst = { .buttons = ard_buttons, .nbuttons = ARRAY_SIZE(ard_buttons), }; static struct resource ard_smsc911x_resources[] = { { .start = MX53_CS1_64MB_BASE_ADDR, .end = MX53_CS1_64MB_BASE_ADDR + SZ_32M - 1, .flags = IORESOURCE_MEM, }, { .start = gpio_to_irq(ARD_ETHERNET_INT_B), .end = gpio_to_irq(ARD_ETHERNET_INT_B), .flags = IORESOURCE_IRQ, }, }; struct smsc911x_platform_config ard_smsc911x_config = { .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW, .irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL, .flags = SMSC911X_USE_32BIT, }; static struct platform_device ard_smsc_lan9220_device = { .name = "smsc911x", .id = -1, .num_resources = ARRAY_SIZE(ard_smsc911x_resources), .resource = ard_smsc911x_resources, .dev = { .platform_data = &ard_smsc911x_config, }, }; static const struct esdhc_platform_data mx53_ard_sd1_data __initconst = { .cd_gpio = ARD_SD1_CD, .wp_gpio = ARD_SD1_WP, }; static struct imxi2c_platform_data mx53_ard_i2c2_data = { .bitrate = 50000, }; static struct imxi2c_platform_data mx53_ard_i2c3_data = { .bitrate = 400000, }; static void __init mx53_ard_io_init(void) { gpio_request(ARD_ETHERNET_INT_B, "eth-int-b"); gpio_direction_input(ARD_ETHERNET_INT_B); gpio_request(ARD_I2CPORTEXP_B, "i2cptexp-rst"); gpio_direction_output(ARD_I2CPORTEXP_B, 1); } /* Config CS1 settings for ethernet controller */ static int weim_cs_config(void) { u32 reg; void __iomem *weim_base, *iomuxc_base; weim_base = ioremap(MX53_WEIM_BASE_ADDR, SZ_4K); if (!weim_base) return -ENOMEM; iomuxc_base = ioremap(MX53_IOMUXC_BASE_ADDR, SZ_4K); if (!iomuxc_base) return -ENOMEM; /* CS1 timings for LAN9220 */ writel(0x20001, (weim_base + 0x18)); writel(0x0, (weim_base + 0x1C)); writel(0x16000202, (weim_base + 0x20)); writel(0x00000002, (weim_base + 0x24)); writel(0x16002082, (weim_base + 0x28)); writel(0x00000000, (weim_base + 0x2C)); writel(0x00000000, (weim_base + 0x90)); /* specify 64 MB on CS1 and CS0 on GPR1 */ reg = readl(iomuxc_base + 0x4); reg &= ~0x3F; reg |= 0x1B; writel(reg, (iomuxc_base + 0x4)); iounmap(iomuxc_base); iounmap(weim_base); return 0; } void __init imx53_ard_common_init(void) { mxc_iomux_v3_setup_multiple_pads(mx53_ard_pads, ARRAY_SIZE(mx53_ard_pads)); weim_cs_config(); } static struct platform_device *devices[] __initdata = { &ard_smsc_lan9220_device, }; static void __init mx53_ard_board_init(void) { imx53_soc_init(); imx53_add_imx_uart(0, NULL); imx53_ard_common_init(); mx53_ard_io_init(); platform_add_devices(devices, ARRAY_SIZE(devices)); imx53_add_sdhci_esdhc_imx(0, &mx53_ard_sd1_data); imx53_add_imx2_wdt(0, NULL); imx53_add_imx_i2c(1, &mx53_ard_i2c2_data); imx53_add_imx_i2c(2, &mx53_ard_i2c3_data); imx_add_gpio_keys(&ard_button_data); } static void __init mx53_ard_timer_init(void) { mx53_clocks_init(32768, 24000000, 22579200, 0); } static struct sys_timer mx53_ard_timer = { .init = mx53_ard_timer_init, }; MACHINE_START(MX53_ARD, "Freescale MX53 ARD Board") .map_io = mx53_map_io, .init_early = imx53_init_early, .init_irq = mx53_init_irq, .timer = &mx53_ard_timer, .init_machine = mx53_ard_board_init, MACHINE_END