| /* |
| * 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 <linux/init.h> |
| #include <linux/clk.h> |
| #include <linux/delay.h> |
| #include <linux/gpio.h> |
| #include <linux/smsc911x.h> |
| |
| #include <mach/common.h> |
| #include <mach/hardware.h> |
| #include <mach/iomux-mx53.h> |
| |
| #include <asm/mach-types.h> |
| #include <asm/mach/arch.h> |
| #include <asm/mach/time.h> |
| |
| #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 = IMX_GPIO_TO_IRQ(ARD_ETHERNET_INT_B), |
| .end = IMX_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) |
| { |
| mxc_iomux_v3_setup_multiple_pads(mx53_ard_pads, |
| ARRAY_SIZE(mx53_ard_pads)); |
| |
| 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; |
| } |
| |
| 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); |
| |
| mx53_ard_io_init(); |
| weim_cs_config(); |
| 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 |