![Shawn Guo](/assets/img/avatar_default.png)
It moves a bunch of header files included in hardware.h and itself from mach-imx/include/mach to mach-imx, and updates users to include hardware.h rather than mach/hardware.h. The files in mach-imx/devices will need to include "../hardware.h". Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de>
437 lines
11 KiB
C
437 lines
11 KiB
C
/*
|
|
* 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 "cpu_op-mx51.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();
|
|
|
|
#if defined(CONFIG_CPU_FREQ_IMX)
|
|
get_cpu_op = mx51_get_cpu_op;
|
|
#endif
|
|
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);
|
|
}
|
|
|
|
static struct sys_timer mx51_babbage_timer = {
|
|
.init = mx51_babbage_timer_init,
|
|
};
|
|
|
|
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,
|
|
.timer = &mx51_babbage_timer,
|
|
.init_machine = mx51_babbage_init,
|
|
.init_late = imx51_init_late,
|
|
.restart = mxc_restart,
|
|
MACHINE_END
|