diff options
Diffstat (limited to 'arch/arm/mach-imx/mach-mx51_babbage.c')
| -rw-r--r-- | arch/arm/mach-imx/mach-mx51_babbage.c | 428 |
1 files changed, 0 insertions, 428 deletions
diff --git a/arch/arm/mach-imx/mach-mx51_babbage.c b/arch/arm/mach-imx/mach-mx51_babbage.c deleted file mode 100644 index f3d264a636fa..000000000000 --- a/arch/arm/mach-imx/mach-mx51_babbage.c +++ /dev/null @@ -1,428 +0,0 @@ -/* - * Copyright 2009-2010 Freescale Semiconductor, Inc. All Rights Reserved. - * Copyright (C) 2009-2010 Amit Kucheria <amit.kucheria@canonical.com> - * - * The code contained herein is licensed under the GNU General Public - * License. You may obtain a copy of the GNU General Public License - * Version 2 or later at the following locations: - * - * http://www.opensource.org/licenses/gpl-license.html - * http://www.gnu.org/copyleft/gpl.html - */ - -#include <linux/init.h> -#include <linux/platform_device.h> -#include <linux/i2c.h> -#include <linux/gpio.h> -#include <linux/delay.h> -#include <linux/io.h> -#include <linux/input.h> -#include <linux/spi/flash.h> -#include <linux/spi/spi.h> - -#include <asm/setup.h> -#include <asm/mach-types.h> -#include <asm/mach/arch.h> -#include <asm/mach/time.h> - -#include "common.h" -#include "devices-imx51.h" -#include "hardware.h" -#include "iomux-mx51.h" - -#define BABBAGE_USB_HUB_RESET IMX_GPIO_NR(1, 7) -#define BABBAGE_USBH1_STP IMX_GPIO_NR(1, 27) -#define BABBAGE_USB_PHY_RESET IMX_GPIO_NR(2, 5) -#define BABBAGE_FEC_PHY_RESET IMX_GPIO_NR(2, 14) -#define BABBAGE_POWER_KEY IMX_GPIO_NR(2, 21) -#define BABBAGE_ECSPI1_CS0 IMX_GPIO_NR(4, 24) -#define BABBAGE_ECSPI1_CS1 IMX_GPIO_NR(4, 25) -#define BABBAGE_SD2_CD IMX_GPIO_NR(1, 6) -#define BABBAGE_SD2_WP IMX_GPIO_NR(1, 5) - -/* USB_CTRL_1 */ -#define MX51_USB_CTRL_1_OFFSET 0x10 -#define MX51_USB_CTRL_UH1_EXT_CLK_EN (1 << 25) - -#define MX51_USB_PLLDIV_12_MHZ 0x00 -#define MX51_USB_PLL_DIV_19_2_MHZ 0x01 -#define MX51_USB_PLL_DIV_24_MHZ 0x02 - -static struct gpio_keys_button babbage_buttons[] = { - { - .gpio = BABBAGE_POWER_KEY, - .code = BTN_0, - .desc = "PWR", - .active_low = 1, - .wakeup = 1, - }, -}; - -static const struct gpio_keys_platform_data imx_button_data __initconst = { - .buttons = babbage_buttons, - .nbuttons = ARRAY_SIZE(babbage_buttons), -}; - -static iomux_v3_cfg_t mx51babbage_pads[] = { - /* UART1 */ - MX51_PAD_UART1_RXD__UART1_RXD, - MX51_PAD_UART1_TXD__UART1_TXD, - MX51_PAD_UART1_RTS__UART1_RTS, - MX51_PAD_UART1_CTS__UART1_CTS, - - /* UART2 */ - MX51_PAD_UART2_RXD__UART2_RXD, - MX51_PAD_UART2_TXD__UART2_TXD, - - /* UART3 */ - MX51_PAD_EIM_D25__UART3_RXD, - MX51_PAD_EIM_D26__UART3_TXD, - MX51_PAD_EIM_D27__UART3_RTS, - MX51_PAD_EIM_D24__UART3_CTS, - - /* I2C1 */ - MX51_PAD_EIM_D16__I2C1_SDA, - MX51_PAD_EIM_D19__I2C1_SCL, - - /* I2C2 */ - MX51_PAD_KEY_COL4__I2C2_SCL, - MX51_PAD_KEY_COL5__I2C2_SDA, - - /* HSI2C */ - MX51_PAD_I2C1_CLK__I2C1_CLK, - MX51_PAD_I2C1_DAT__I2C1_DAT, - - /* USB HOST1 */ - MX51_PAD_USBH1_CLK__USBH1_CLK, - MX51_PAD_USBH1_DIR__USBH1_DIR, - MX51_PAD_USBH1_NXT__USBH1_NXT, - MX51_PAD_USBH1_DATA0__USBH1_DATA0, - MX51_PAD_USBH1_DATA1__USBH1_DATA1, - MX51_PAD_USBH1_DATA2__USBH1_DATA2, - MX51_PAD_USBH1_DATA3__USBH1_DATA3, - MX51_PAD_USBH1_DATA4__USBH1_DATA4, - MX51_PAD_USBH1_DATA5__USBH1_DATA5, - MX51_PAD_USBH1_DATA6__USBH1_DATA6, - MX51_PAD_USBH1_DATA7__USBH1_DATA7, - - /* USB HUB reset line*/ - MX51_PAD_GPIO1_7__GPIO1_7, - - /* USB PHY reset line */ - MX51_PAD_EIM_D21__GPIO2_5, - - /* FEC */ - MX51_PAD_EIM_EB2__FEC_MDIO, - MX51_PAD_EIM_EB3__FEC_RDATA1, - MX51_PAD_EIM_CS2__FEC_RDATA2, - MX51_PAD_EIM_CS3__FEC_RDATA3, - MX51_PAD_EIM_CS4__FEC_RX_ER, - MX51_PAD_EIM_CS5__FEC_CRS, - MX51_PAD_NANDF_RB2__FEC_COL, - MX51_PAD_NANDF_RB3__FEC_RX_CLK, - MX51_PAD_NANDF_D9__FEC_RDATA0, - MX51_PAD_NANDF_D8__FEC_TDATA0, - MX51_PAD_NANDF_CS2__FEC_TX_ER, - MX51_PAD_NANDF_CS3__FEC_MDC, - MX51_PAD_NANDF_CS4__FEC_TDATA1, - MX51_PAD_NANDF_CS5__FEC_TDATA2, - MX51_PAD_NANDF_CS6__FEC_TDATA3, - MX51_PAD_NANDF_CS7__FEC_TX_EN, - MX51_PAD_NANDF_RDY_INT__FEC_TX_CLK, - - /* FEC PHY reset line */ - MX51_PAD_EIM_A20__GPIO2_14, - - /* SD 1 */ - MX51_PAD_SD1_CMD__SD1_CMD, - MX51_PAD_SD1_CLK__SD1_CLK, - MX51_PAD_SD1_DATA0__SD1_DATA0, - MX51_PAD_SD1_DATA1__SD1_DATA1, - MX51_PAD_SD1_DATA2__SD1_DATA2, - MX51_PAD_SD1_DATA3__SD1_DATA3, - /* CD/WP from controller */ - MX51_PAD_GPIO1_0__SD1_CD, - MX51_PAD_GPIO1_1__SD1_WP, - - /* SD 2 */ - MX51_PAD_SD2_CMD__SD2_CMD, - MX51_PAD_SD2_CLK__SD2_CLK, - MX51_PAD_SD2_DATA0__SD2_DATA0, - MX51_PAD_SD2_DATA1__SD2_DATA1, - MX51_PAD_SD2_DATA2__SD2_DATA2, - MX51_PAD_SD2_DATA3__SD2_DATA3, - /* CD/WP gpio */ - MX51_PAD_GPIO1_6__GPIO1_6, - MX51_PAD_GPIO1_5__GPIO1_5, - - /* eCSPI1 */ - MX51_PAD_CSPI1_MISO__ECSPI1_MISO, - MX51_PAD_CSPI1_MOSI__ECSPI1_MOSI, - MX51_PAD_CSPI1_SCLK__ECSPI1_SCLK, - MX51_PAD_CSPI1_SS0__GPIO4_24, - MX51_PAD_CSPI1_SS1__GPIO4_25, - - /* Audio */ - MX51_PAD_AUD3_BB_TXD__AUD3_TXD, - MX51_PAD_AUD3_BB_RXD__AUD3_RXD, - MX51_PAD_AUD3_BB_CK__AUD3_TXC, - MX51_PAD_AUD3_BB_FS__AUD3_TXFS, -}; - -/* Serial ports */ -static const struct imxuart_platform_data uart_pdata __initconst = { - .flags = IMXUART_HAVE_RTSCTS, -}; - -static const struct imxi2c_platform_data babbage_i2c_data __initconst = { - .bitrate = 100000, -}; - -static const struct imxi2c_platform_data babbage_hsi2c_data __initconst = { - .bitrate = 400000, -}; - -static struct gpio mx51_babbage_usbh1_gpios[] = { - { BABBAGE_USBH1_STP, GPIOF_OUT_INIT_LOW, "usbh1_stp" }, - { BABBAGE_USB_PHY_RESET, GPIOF_OUT_INIT_LOW, "usbh1_phy_reset" }, -}; - -static int gpio_usbh1_active(void) -{ - iomux_v3_cfg_t usbh1stp_gpio = MX51_PAD_USBH1_STP__GPIO1_27; - int ret; - - /* Set USBH1_STP to GPIO and toggle it */ - mxc_iomux_v3_setup_pad(usbh1stp_gpio); - ret = gpio_request_array(mx51_babbage_usbh1_gpios, - ARRAY_SIZE(mx51_babbage_usbh1_gpios)); - - if (ret) { - pr_debug("failed to get USBH1 pins: %d\n", ret); - return ret; - } - - msleep(100); - gpio_set_value(BABBAGE_USBH1_STP, 1); - gpio_set_value(BABBAGE_USB_PHY_RESET, 1); - gpio_free_array(mx51_babbage_usbh1_gpios, - ARRAY_SIZE(mx51_babbage_usbh1_gpios)); - return 0; -} - -static inline void babbage_usbhub_reset(void) -{ - int ret; - - /* Reset USB hub */ - ret = gpio_request_one(BABBAGE_USB_HUB_RESET, - GPIOF_OUT_INIT_LOW, "GPIO1_7"); - if (ret) { - printk(KERN_ERR"failed to get GPIO_USB_HUB_RESET: %d\n", ret); - return; - } - - msleep(2); - /* Deassert reset */ - gpio_set_value(BABBAGE_USB_HUB_RESET, 1); -} - -static inline void babbage_fec_reset(void) -{ - int ret; - - /* reset FEC PHY */ - ret = gpio_request_one(BABBAGE_FEC_PHY_RESET, - GPIOF_OUT_INIT_LOW, "fec-phy-reset"); - if (ret) { - printk(KERN_ERR"failed to get GPIO_FEC_PHY_RESET: %d\n", ret); - return; - } - msleep(1); - gpio_set_value(BABBAGE_FEC_PHY_RESET, 1); -} - -/* This function is board specific as the bit mask for the plldiv will also -be different for other Freescale SoCs, thus a common bitmask is not -possible and cannot get place in /plat-mxc/ehci.c.*/ -static int initialize_otg_port(struct platform_device *pdev) -{ - u32 v; - void __iomem *usb_base; - void __iomem *usbother_base; - - usb_base = ioremap(MX51_USB_OTG_BASE_ADDR, SZ_4K); - if (!usb_base) - return -ENOMEM; - usbother_base = usb_base + MX5_USBOTHER_REGS_OFFSET; - - /* Set the PHY clock to 19.2MHz */ - v = __raw_readl(usbother_base + MXC_USB_PHY_CTR_FUNC2_OFFSET); - v &= ~MX5_USB_UTMI_PHYCTRL1_PLLDIV_MASK; - v |= MX51_USB_PLL_DIV_19_2_MHZ; - __raw_writel(v, usbother_base + MXC_USB_PHY_CTR_FUNC2_OFFSET); - iounmap(usb_base); - - mdelay(10); - - return mx51_initialize_usb_hw(0, MXC_EHCI_INTERNAL_PHY); -} - -static int initialize_usbh1_port(struct platform_device *pdev) -{ - u32 v; - void __iomem *usb_base; - void __iomem *usbother_base; - - usb_base = ioremap(MX51_USB_OTG_BASE_ADDR, SZ_4K); - if (!usb_base) - return -ENOMEM; - usbother_base = usb_base + MX5_USBOTHER_REGS_OFFSET; - - /* The clock for the USBH1 ULPI port will come externally from the PHY. */ - v = __raw_readl(usbother_base + MX51_USB_CTRL_1_OFFSET); - __raw_writel(v | MX51_USB_CTRL_UH1_EXT_CLK_EN, usbother_base + MX51_USB_CTRL_1_OFFSET); - iounmap(usb_base); - - mdelay(10); - - return mx51_initialize_usb_hw(1, MXC_EHCI_POWER_PINS_ENABLED | - MXC_EHCI_ITC_NO_THRESHOLD); -} - -static const struct mxc_usbh_platform_data dr_utmi_config __initconst = { - .init = initialize_otg_port, - .portsc = MXC_EHCI_UTMI_16BIT, -}; - -static const struct fsl_usb2_platform_data usb_pdata __initconst = { - .operating_mode = FSL_USB2_DR_DEVICE, - .phy_mode = FSL_USB2_PHY_UTMI_WIDE, -}; - -static const struct mxc_usbh_platform_data usbh1_config __initconst = { - .init = initialize_usbh1_port, - .portsc = MXC_EHCI_MODE_ULPI, -}; - -static bool otg_mode_host __initdata; - -static int __init babbage_otg_mode(char *options) -{ - if (!strcmp(options, "host")) - otg_mode_host = true; - else if (!strcmp(options, "device")) - otg_mode_host = false; - else - pr_info("otg_mode neither \"host\" nor \"device\". " - "Defaulting to device\n"); - return 1; -} -__setup("otg_mode=", babbage_otg_mode); - -static struct spi_board_info mx51_babbage_spi_board_info[] __initdata = { - { - .modalias = "mtd_dataflash", - .max_speed_hz = 25000000, - .bus_num = 0, - .chip_select = 1, - .mode = SPI_MODE_0, - .platform_data = NULL, - }, -}; - -static int mx51_babbage_spi_cs[] = { - BABBAGE_ECSPI1_CS0, - BABBAGE_ECSPI1_CS1, -}; - -static const struct spi_imx_master mx51_babbage_spi_pdata __initconst = { - .chipselect = mx51_babbage_spi_cs, - .num_chipselect = ARRAY_SIZE(mx51_babbage_spi_cs), -}; - -static const struct esdhc_platform_data mx51_babbage_sd1_data __initconst = { - .cd_type = ESDHC_CD_CONTROLLER, - .wp_type = ESDHC_WP_CONTROLLER, -}; - -static const struct esdhc_platform_data mx51_babbage_sd2_data __initconst = { - .cd_gpio = BABBAGE_SD2_CD, - .wp_gpio = BABBAGE_SD2_WP, - .cd_type = ESDHC_CD_GPIO, - .wp_type = ESDHC_WP_GPIO, -}; - -void __init imx51_babbage_common_init(void) -{ - mxc_iomux_v3_setup_multiple_pads(mx51babbage_pads, - ARRAY_SIZE(mx51babbage_pads)); -} - -/* - * Board specific initialization. - */ -static void __init mx51_babbage_init(void) -{ - iomux_v3_cfg_t usbh1stp = MX51_PAD_USBH1_STP__USBH1_STP; - iomux_v3_cfg_t power_key = NEW_PAD_CTRL(MX51_PAD_EIM_A27__GPIO2_21, - PAD_CTL_SRE_FAST | PAD_CTL_DSE_HIGH); - - imx51_soc_init(); - - imx51_babbage_common_init(); - - imx51_add_imx_uart(0, &uart_pdata); - imx51_add_imx_uart(1, NULL); - imx51_add_imx_uart(2, &uart_pdata); - - babbage_fec_reset(); - imx51_add_fec(NULL); - - /* Set the PAD settings for the pwr key. */ - mxc_iomux_v3_setup_pad(power_key); - imx_add_gpio_keys(&imx_button_data); - - imx51_add_imx_i2c(0, &babbage_i2c_data); - imx51_add_imx_i2c(1, &babbage_i2c_data); - imx51_add_hsi2c(&babbage_hsi2c_data); - - if (otg_mode_host) - imx51_add_mxc_ehci_otg(&dr_utmi_config); - else { - initialize_otg_port(NULL); - imx51_add_fsl_usb2_udc(&usb_pdata); - } - - gpio_usbh1_active(); - imx51_add_mxc_ehci_hs(1, &usbh1_config); - /* setback USBH1_STP to be function */ - mxc_iomux_v3_setup_pad(usbh1stp); - babbage_usbhub_reset(); - - imx51_add_sdhci_esdhc_imx(0, &mx51_babbage_sd1_data); - imx51_add_sdhci_esdhc_imx(1, &mx51_babbage_sd2_data); - - spi_register_board_info(mx51_babbage_spi_board_info, - ARRAY_SIZE(mx51_babbage_spi_board_info)); - imx51_add_ecspi(0, &mx51_babbage_spi_pdata); - imx51_add_imx2_wdt(0); -} - -static void __init mx51_babbage_timer_init(void) -{ - mx51_clocks_init(32768, 24000000, 22579200, 0); -} - -MACHINE_START(MX51_BABBAGE, "Freescale MX51 Babbage Board") - /* Maintainer: Amit Kucheria <amit.kucheria@canonical.com> */ - .atag_offset = 0x100, - .map_io = mx51_map_io, - .init_early = imx51_init_early, - .init_irq = mx51_init_irq, - .handle_irq = imx51_handle_irq, - .init_time = mx51_babbage_timer_init, - .init_machine = mx51_babbage_init, - .init_late = imx51_init_late, - .restart = mxc_restart, -MACHINE_END |