diff options
Diffstat (limited to 'arch/arm/mach-imx/mach-armadillo5x0.c')
| -rw-r--r-- | arch/arm/mach-imx/mach-armadillo5x0.c | 568 |
1 files changed, 568 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/mach-armadillo5x0.c b/arch/arm/mach-imx/mach-armadillo5x0.c new file mode 100644 index 00000000000..39406b7e322 --- /dev/null +++ b/arch/arm/mach-imx/mach-armadillo5x0.c @@ -0,0 +1,568 @@ +/* + * armadillo5x0.c + * + * Copyright 2009 Alberto Panizzo <maramaopercheseimorto@gmail.com> + * updates in http://alberdroid.blogspot.com/ + * + * Based on Atmark Techno, Inc. armadillo 500 BSP 2008 + * Based on mx31ads.c and pcm037.c Great Work! + * + * 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/types.h> +#include <linux/init.h> +#include <linux/clk.h> +#include <linux/platform_device.h> +#include <linux/gpio.h> +#include <linux/smsc911x.h> +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <linux/mtd/physmap.h> +#include <linux/io.h> +#include <linux/input.h> +#include <linux/i2c.h> +#include <linux/usb/otg.h> +#include <linux/usb/ulpi.h> +#include <linux/delay.h> +#include <linux/regulator/machine.h> +#include <linux/regulator/fixed.h> + +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <asm/mach/time.h> +#include <asm/memory.h> +#include <asm/mach/map.h> + +#include "common.h" +#include "devices-imx31.h" +#include "crmregs-imx3.h" +#include "hardware.h" +#include "iomux-mx3.h" +#include "ulpi.h" + +static int armadillo5x0_pins[] = { + /* UART1 */ + MX31_PIN_CTS1__CTS1, + MX31_PIN_RTS1__RTS1, + MX31_PIN_TXD1__TXD1, + MX31_PIN_RXD1__RXD1, + /* UART2 */ + MX31_PIN_CTS2__CTS2, + MX31_PIN_RTS2__RTS2, + MX31_PIN_TXD2__TXD2, + MX31_PIN_RXD2__RXD2, + /* LAN9118_IRQ */ + IOMUX_MODE(MX31_PIN_GPIO1_0, IOMUX_CONFIG_GPIO), + /* SDHC1 */ + MX31_PIN_SD1_DATA3__SD1_DATA3, + MX31_PIN_SD1_DATA2__SD1_DATA2, + MX31_PIN_SD1_DATA1__SD1_DATA1, + MX31_PIN_SD1_DATA0__SD1_DATA0, + MX31_PIN_SD1_CLK__SD1_CLK, + MX31_PIN_SD1_CMD__SD1_CMD, + /* Framebuffer */ + MX31_PIN_LD0__LD0, + MX31_PIN_LD1__LD1, + MX31_PIN_LD2__LD2, + MX31_PIN_LD3__LD3, + MX31_PIN_LD4__LD4, + MX31_PIN_LD5__LD5, + MX31_PIN_LD6__LD6, + MX31_PIN_LD7__LD7, + MX31_PIN_LD8__LD8, + MX31_PIN_LD9__LD9, + MX31_PIN_LD10__LD10, + MX31_PIN_LD11__LD11, + MX31_PIN_LD12__LD12, + MX31_PIN_LD13__LD13, + MX31_PIN_LD14__LD14, + MX31_PIN_LD15__LD15, + MX31_PIN_LD16__LD16, + MX31_PIN_LD17__LD17, + MX31_PIN_VSYNC3__VSYNC3, + MX31_PIN_HSYNC__HSYNC, + MX31_PIN_FPSHIFT__FPSHIFT, + MX31_PIN_DRDY0__DRDY0, + IOMUX_MODE(MX31_PIN_LCS1, IOMUX_CONFIG_GPIO), /*ADV7125_PSAVE*/ + /* I2C2 */ + MX31_PIN_CSPI2_MOSI__SCL, + MX31_PIN_CSPI2_MISO__SDA, + /* OTG */ + MX31_PIN_USBOTG_DATA0__USBOTG_DATA0, + MX31_PIN_USBOTG_DATA1__USBOTG_DATA1, + MX31_PIN_USBOTG_DATA2__USBOTG_DATA2, + MX31_PIN_USBOTG_DATA3__USBOTG_DATA3, + MX31_PIN_USBOTG_DATA4__USBOTG_DATA4, + MX31_PIN_USBOTG_DATA5__USBOTG_DATA5, + MX31_PIN_USBOTG_DATA6__USBOTG_DATA6, + MX31_PIN_USBOTG_DATA7__USBOTG_DATA7, + MX31_PIN_USBOTG_CLK__USBOTG_CLK, + MX31_PIN_USBOTG_DIR__USBOTG_DIR, + MX31_PIN_USBOTG_NXT__USBOTG_NXT, + MX31_PIN_USBOTG_STP__USBOTG_STP, + /* USB host 2 */ + IOMUX_MODE(MX31_PIN_USBH2_CLK, IOMUX_CONFIG_FUNC), + IOMUX_MODE(MX31_PIN_USBH2_DIR, IOMUX_CONFIG_FUNC), + IOMUX_MODE(MX31_PIN_USBH2_NXT, IOMUX_CONFIG_FUNC), + IOMUX_MODE(MX31_PIN_USBH2_STP, IOMUX_CONFIG_FUNC), + IOMUX_MODE(MX31_PIN_USBH2_DATA0, IOMUX_CONFIG_FUNC), + IOMUX_MODE(MX31_PIN_USBH2_DATA1, IOMUX_CONFIG_FUNC), + IOMUX_MODE(MX31_PIN_STXD3, IOMUX_CONFIG_FUNC), + IOMUX_MODE(MX31_PIN_SRXD3, IOMUX_CONFIG_FUNC), + IOMUX_MODE(MX31_PIN_SCK3, IOMUX_CONFIG_FUNC), + IOMUX_MODE(MX31_PIN_SFS3, IOMUX_CONFIG_FUNC), + IOMUX_MODE(MX31_PIN_STXD6, IOMUX_CONFIG_FUNC), + IOMUX_MODE(MX31_PIN_SRXD6, IOMUX_CONFIG_FUNC), +}; + +/* USB */ + +#define OTG_RESET IOMUX_TO_GPIO(MX31_PIN_STXD4) +#define USBH2_RESET IOMUX_TO_GPIO(MX31_PIN_SCK6) +#define USBH2_CS IOMUX_TO_GPIO(MX31_PIN_GPIO1_3) + +#define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \ + PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU) + +static int usbotg_init(struct platform_device *pdev) +{ + int err; + + mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA0, USB_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA1, USB_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA2, USB_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA3, USB_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA4, USB_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA5, USB_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA6, USB_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA7, USB_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_USBOTG_CLK, USB_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_USBOTG_DIR, USB_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_USBOTG_NXT, USB_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_USBOTG_STP, USB_PAD_CFG); + + /* Chip already enabled by hardware */ + /* OTG phy reset*/ + err = gpio_request(OTG_RESET, "USB-OTG-RESET"); + if (err) { + pr_err("Failed to request the usb otg reset gpio\n"); + return err; + } + + err = gpio_direction_output(OTG_RESET, 1/*HIGH*/); + if (err) { + pr_err("Failed to reset the usb otg phy\n"); + goto otg_free_reset; + } + + gpio_set_value(OTG_RESET, 0/*LOW*/); + mdelay(5); + gpio_set_value(OTG_RESET, 1/*HIGH*/); + mdelay(10); + + return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED | + MXC_EHCI_INTERFACE_DIFF_UNI); + +otg_free_reset: + gpio_free(OTG_RESET); + return err; +} + +static int usbh2_init(struct platform_device *pdev) +{ + int err; + + mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_SRXD6, USB_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_STXD6, USB_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_SFS3, USB_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_SCK3, USB_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_SRXD3, USB_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_STXD3, USB_PAD_CFG); + + mxc_iomux_set_gpr(MUX_PGP_UH2, true); + + + /* Enable the chip */ + err = gpio_request(USBH2_CS, "USB-H2-CS"); + if (err) { + pr_err("Failed to request the usb host 2 CS gpio\n"); + return err; + } + + err = gpio_direction_output(USBH2_CS, 0/*Enabled*/); + if (err) { + pr_err("Failed to drive the usb host 2 CS gpio\n"); + goto h2_free_cs; + } + + /* H2 phy reset*/ + err = gpio_request(USBH2_RESET, "USB-H2-RESET"); + if (err) { + pr_err("Failed to request the usb host 2 reset gpio\n"); + goto h2_free_cs; + } + + err = gpio_direction_output(USBH2_RESET, 1/*HIGH*/); + if (err) { + pr_err("Failed to reset the usb host 2 phy\n"); + goto h2_free_reset; + } + + gpio_set_value(USBH2_RESET, 0/*LOW*/); + mdelay(5); + gpio_set_value(USBH2_RESET, 1/*HIGH*/); + mdelay(10); + + return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED | + MXC_EHCI_INTERFACE_DIFF_UNI); + +h2_free_reset: + gpio_free(USBH2_RESET); +h2_free_cs: + gpio_free(USBH2_CS); + return err; +} + +static struct mxc_usbh_platform_data usbotg_pdata __initdata = { + .init = usbotg_init, + .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT, +}; + +static struct mxc_usbh_platform_data usbh2_pdata __initdata = { + .init = usbh2_init, + .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT, +}; + +/* RTC over I2C*/ +#define ARMADILLO5X0_RTC_GPIO IOMUX_TO_GPIO(MX31_PIN_SRXD4) + +static struct i2c_board_info armadillo5x0_i2c_rtc = { + I2C_BOARD_INFO("s35390a", 0x30), +}; + +/* GPIO BUTTONS */ +static struct gpio_keys_button armadillo5x0_buttons[] = { + { + .code = KEY_ENTER, /*28*/ + .gpio = IOMUX_TO_GPIO(MX31_PIN_SCLK0), + .active_low = 1, + .desc = "menu", + .wakeup = 1, + }, { + .code = KEY_BACK, /*158*/ + .gpio = IOMUX_TO_GPIO(MX31_PIN_SRST0), + .active_low = 1, + .desc = "back", + .wakeup = 1, + } +}; + +static const struct gpio_keys_platform_data + armadillo5x0_button_data __initconst = { + .buttons = armadillo5x0_buttons, + .nbuttons = ARRAY_SIZE(armadillo5x0_buttons), +}; + +/* + * NAND Flash + */ +static const struct mxc_nand_platform_data +armadillo5x0_nand_board_info __initconst = { + .width = 1, + .hw_ecc = 1, +}; + +/* + * MTD NOR Flash + */ +static struct mtd_partition armadillo5x0_nor_flash_partitions[] = { + { + .name = "nor.bootloader", + .offset = 0x00000000, + .size = 4*32*1024, + }, { + .name = "nor.kernel", + .offset = MTDPART_OFS_APPEND, + .size = 16*128*1024, + }, { + .name = "nor.userland", + .offset = MTDPART_OFS_APPEND, + .size = 110*128*1024, + }, { + .name = "nor.config", + .offset = MTDPART_OFS_APPEND, + .size = 1*128*1024, + }, +}; + +static const struct physmap_flash_data + armadillo5x0_nor_flash_pdata __initconst = { + .width = 2, + .parts = armadillo5x0_nor_flash_partitions, + .nr_parts = ARRAY_SIZE(armadillo5x0_nor_flash_partitions), +}; + +static const struct resource armadillo5x0_nor_flash_resource __initconst = { + .flags = IORESOURCE_MEM, + .start = MX31_CS0_BASE_ADDR, + .end = MX31_CS0_BASE_ADDR + SZ_64M - 1, +}; + +/* + * FB support + */ +static const struct fb_videomode fb_modedb[] = { + { /* 640x480 @ 60 Hz */ + .name = "CRT-VGA", + .refresh = 60, + .xres = 640, + .yres = 480, + .pixclock = 39721, + .left_margin = 35, + .right_margin = 115, + .upper_margin = 43, + .lower_margin = 1, + .hsync_len = 10, + .vsync_len = 1, + .sync = FB_SYNC_OE_ACT_HIGH, + .vmode = FB_VMODE_NONINTERLACED, + .flag = 0, + }, {/* 800x600 @ 56 Hz */ + .name = "CRT-SVGA", + .refresh = 56, + .xres = 800, + .yres = 600, + .pixclock = 30000, + .left_margin = 30, + .right_margin = 108, + .upper_margin = 13, + .lower_margin = 10, + .hsync_len = 10, + .vsync_len = 1, + .sync = FB_SYNC_OE_ACT_HIGH | FB_SYNC_HOR_HIGH_ACT | + FB_SYNC_VERT_HIGH_ACT, + .vmode = FB_VMODE_NONINTERLACED, + .flag = 0, + }, +}; + +static struct mx3fb_platform_data mx3fb_pdata __initdata = { + .name = "CRT-VGA", + .mode = fb_modedb, + .num_modes = ARRAY_SIZE(fb_modedb), +}; + +/* + * SDHC 1 + * MMC support + */ +static int armadillo5x0_sdhc1_get_ro(struct device *dev) +{ + return gpio_get_value(IOMUX_TO_GPIO(MX31_PIN_ATA_RESET_B)); +} + +static int armadillo5x0_sdhc1_init(struct device *dev, + irq_handler_t detect_irq, void *data) +{ + int ret; + int gpio_det, gpio_wp; + + gpio_det = IOMUX_TO_GPIO(MX31_PIN_ATA_DMACK); + gpio_wp = IOMUX_TO_GPIO(MX31_PIN_ATA_RESET_B); + + ret = gpio_request(gpio_det, "sdhc-card-detect"); + if (ret) + return ret; + + gpio_direction_input(gpio_det); + + ret = gpio_request(gpio_wp, "sdhc-write-protect"); + if (ret) + goto err_gpio_free; + + gpio_direction_input(gpio_wp); + + /* When supported the trigger type have to be BOTH */ + ret = request_irq(gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_ATA_DMACK)), + detect_irq, IRQF_TRIGGER_FALLING, + "sdhc-detect", data); + + if (ret) + goto err_gpio_free_2; + + return 0; + +err_gpio_free_2: + gpio_free(gpio_wp); + +err_gpio_free: + gpio_free(gpio_det); + + return ret; + +} + +static void armadillo5x0_sdhc1_exit(struct device *dev, void *data) +{ + free_irq(gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_ATA_DMACK)), data); + gpio_free(IOMUX_TO_GPIO(MX31_PIN_ATA_DMACK)); + gpio_free(IOMUX_TO_GPIO(MX31_PIN_ATA_RESET_B)); +} + +static const struct imxmmc_platform_data sdhc_pdata __initconst = { + .get_ro = armadillo5x0_sdhc1_get_ro, + .init = armadillo5x0_sdhc1_init, + .exit = armadillo5x0_sdhc1_exit, +}; + +/* + * SMSC 9118 + * Network support + */ +static struct resource armadillo5x0_smc911x_resources[] = { + { + .start = MX31_CS3_BASE_ADDR, + .end = MX31_CS3_BASE_ADDR + SZ_32M - 1, + .flags = IORESOURCE_MEM, + }, { + /* irq number is run-time assigned */ + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL, + }, +}; + +static struct smsc911x_platform_config smsc911x_info = { + .flags = SMSC911X_USE_16BIT, + .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW, + .irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL, +}; + +static struct platform_device armadillo5x0_smc911x_device = { + .name = "smsc911x", + .id = -1, + .num_resources = ARRAY_SIZE(armadillo5x0_smc911x_resources), + .resource = armadillo5x0_smc911x_resources, + .dev = { + .platform_data = &smsc911x_info, + }, +}; + +/* UART device data */ +static const struct imxuart_platform_data uart_pdata __initconst = { + .flags = IMXUART_HAVE_RTSCTS, +}; + +static struct platform_device *devices[] __initdata = { + &armadillo5x0_smc911x_device, +}; + +static struct regulator_consumer_supply dummy_supplies[] = { + REGULATOR_SUPPLY("vdd33a", "smsc911x"), + REGULATOR_SUPPLY("vddvario", "smsc911x"), +}; + +/* + * Perform board specific initializations + */ +static void __init armadillo5x0_init(void) +{ + imx31_soc_init(); + + mxc_iomux_setup_multiple_pins(armadillo5x0_pins, + ARRAY_SIZE(armadillo5x0_pins), "armadillo5x0"); + + regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies)); + + armadillo5x0_smc911x_resources[1].start = + gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_0)); + armadillo5x0_smc911x_resources[1].end = + gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_0)); + platform_add_devices(devices, ARRAY_SIZE(devices)); + imx_add_gpio_keys(&armadillo5x0_button_data); + imx31_add_imx_i2c1(NULL); + + /* Register UART */ + imx31_add_imx_uart0(&uart_pdata); + imx31_add_imx_uart1(&uart_pdata); + + /* SMSC9118 IRQ pin */ + gpio_direction_input(MX31_PIN_GPIO1_0); + + /* Register SDHC */ + imx31_add_mxc_mmc(0, &sdhc_pdata); + + /* Register FB */ + imx31_add_ipu_core(); + imx31_add_mx3_sdc_fb(&mx3fb_pdata); + + /* Register NOR Flash */ + platform_device_register_resndata(NULL, "physmap-flash", -1, + &armadillo5x0_nor_flash_resource, 1, + &armadillo5x0_nor_flash_pdata, + sizeof(armadillo5x0_nor_flash_pdata)); + + /* Register NAND Flash */ + imx31_add_mxc_nand(&armadillo5x0_nand_board_info); + + /* set NAND page size to 2k if not configured via boot mode pins */ + __raw_writel(__raw_readl(mx3_ccm_base + MXC_CCM_RCSR) | + (1 << 30), mx3_ccm_base + MXC_CCM_RCSR); + + /* RTC */ + /* Get RTC IRQ and register the chip */ + if (gpio_request(ARMADILLO5X0_RTC_GPIO, "rtc") == 0) { + if (gpio_direction_input(ARMADILLO5X0_RTC_GPIO) == 0) + armadillo5x0_i2c_rtc.irq = gpio_to_irq(ARMADILLO5X0_RTC_GPIO); + else + gpio_free(ARMADILLO5X0_RTC_GPIO); + } + if (armadillo5x0_i2c_rtc.irq == 0) + pr_warning("armadillo5x0_init: failed to get RTC IRQ\n"); + i2c_register_board_info(1, &armadillo5x0_i2c_rtc, 1); + + /* USB */ + + usbotg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS | + ULPI_OTG_DRVVBUS_EXT); + if (usbotg_pdata.otg) + imx31_add_mxc_ehci_otg(&usbotg_pdata); + usbh2_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS | + ULPI_OTG_DRVVBUS_EXT); + if (usbh2_pdata.otg) + imx31_add_mxc_ehci_hs(2, &usbh2_pdata); +} + +static void __init armadillo5x0_timer_init(void) +{ + mx31_clocks_init(26000000); +} + +MACHINE_START(ARMADILLO5X0, "Armadillo-500") + /* Maintainer: Alberto Panizzo */ + .atag_offset = 0x100, + .map_io = mx31_map_io, + .init_early = imx31_init_early, + .init_irq = mx31_init_irq, + .init_time = armadillo5x0_timer_init, + .init_machine = armadillo5x0_init, + .restart = mxc_restart, +MACHINE_END |