diff options
Diffstat (limited to 'arch/arm/mach-mx5/board-mx51_efikamx.c')
| -rw-r--r-- | arch/arm/mach-mx5/board-mx51_efikamx.c | 211 |
1 files changed, 72 insertions, 139 deletions
diff --git a/arch/arm/mach-mx5/board-mx51_efikamx.c b/arch/arm/mach-mx5/board-mx51_efikamx.c index b7946f8e8d4..acab1911cb3 100644 --- a/arch/arm/mach-mx5/board-mx51_efikamx.c +++ b/arch/arm/mach-mx5/board-mx51_efikamx.c @@ -25,6 +25,9 @@ #include <linux/fsl_devices.h> #include <linux/spi/flash.h> #include <linux/spi/spi.h> +#include <linux/mfd/mc13892.h> +#include <linux/regulator/machine.h> +#include <linux/regulator/consumer.h> #include <mach/common.h> #include <mach/hardware.h> @@ -40,8 +43,7 @@ #include "devices-imx51.h" #include "devices.h" - -#define MX51_USB_PLL_DIV_24_MHZ 0x01 +#include "efika.h" #define EFIKAMX_PCBID0 IMX_GPIO_NR(3, 16) #define EFIKAMX_PCBID1 IMX_GPIO_NR(3, 17) @@ -53,13 +55,14 @@ #define EFIKAMX_POWER_KEY IMX_GPIO_NR(2, 31) -#define EFIKAMX_SPI_CS0 IMX_GPIO_NR(4, 24) -#define EFIKAMX_SPI_CS1 IMX_GPIO_NR(4, 25) - /* board 1.1 doesn't have same reset gpio */ #define EFIKAMX_RESET1_1 IMX_GPIO_NR(3, 2) #define EFIKAMX_RESET IMX_GPIO_NR(1, 4) +#define EFIKAMX_POWEROFF IMX_GPIO_NR(4, 13) + +#define EFIKAMX_PMIC IMX_GPIO_NR(1, 6) + /* the pci ids pin have pull up. they're driven low according to board id */ #define MX51_PAD_PCBID0 IOMUX_PAD(0x518, 0x130, 3, 0x0, 0, PAD_CTL_PUS_100K_UP) #define MX51_PAD_PCBID1 IOMUX_PAD(0x51C, 0x134, 3, 0x0, 0, PAD_CTL_PUS_100K_UP) @@ -67,38 +70,11 @@ #define MX51_PAD_PWRKEY IOMUX_PAD(0x48c, 0x0f8, 1, 0x0, 0, PAD_CTL_PUS_100K_UP | PAD_CTL_PKE) static iomux_v3_cfg_t mx51efikamx_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, /* board id */ MX51_PAD_PCBID0, MX51_PAD_PCBID1, MX51_PAD_PCBID2, - /* 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, - - /* 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, - - /* SD/MMC WP/CD */ - MX51_PAD_GPIO1_0__SD1_CD, - MX51_PAD_GPIO1_1__SD1_WP, - MX51_PAD_GPIO1_7__SD2_WP, - MX51_PAD_GPIO1_8__SD2_CD, - /* leds */ MX51_PAD_CSI1_D9__GPIO3_13, MX51_PAD_CSI1_VSYNC__GPIO3_14, @@ -107,64 +83,12 @@ static iomux_v3_cfg_t mx51efikamx_pads[] = { /* power key */ MX51_PAD_PWRKEY, - /* spi */ - MX51_PAD_CSPI1_MOSI__ECSPI1_MOSI, - MX51_PAD_CSPI1_MISO__ECSPI1_MISO, - MX51_PAD_CSPI1_SS0__GPIO4_24, - MX51_PAD_CSPI1_SS1__GPIO4_25, - MX51_PAD_CSPI1_RDY__ECSPI1_RDY, - MX51_PAD_CSPI1_SCLK__ECSPI1_SCLK, - /* reset */ MX51_PAD_DI1_PIN13__GPIO3_2, MX51_PAD_GPIO1_4__GPIO1_4, -}; -/* Serial ports */ -#if defined(CONFIG_SERIAL_IMX) || defined(CONFIG_SERIAL_IMX_MODULE) -static const struct imxuart_platform_data uart_pdata = { - .flags = IMXUART_HAVE_RTSCTS, -}; - -static inline void mxc_init_imx_uart(void) -{ - imx51_add_imx_uart(0, &uart_pdata); - imx51_add_imx_uart(1, &uart_pdata); - imx51_add_imx_uart(2, &uart_pdata); -} -#else /* !SERIAL_IMX */ -static inline void mxc_init_imx_uart(void) -{ -} -#endif /* SERIAL_IMX */ - -/* 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_OTG_BASE_ADDR, SZ_4K); - if (!usb_base) - return -ENOMEM; - usbother_base = (void __iomem *)(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_24_MHZ; - __raw_writel(v, usbother_base + MXC_USB_PHY_CTR_FUNC2_OFFSET); - iounmap(usb_base); - return 0; -} - -static struct mxc_usbh_platform_data dr_utmi_config = { - .init = initialize_otg_port, - .portsc = MXC_EHCI_UTMI_16BIT, - .flags = MXC_EHCI_INTERNAL_PHY, + /* power off */ + MX51_PAD_CSI2_VSYNC__GPIO4_13, }; /* PCBID2 PCBID1 PCBID0 STATE @@ -265,47 +189,6 @@ static const struct gpio_keys_platform_data mx51_efikamx_powerkey_data __initcon .nbuttons = ARRAY_SIZE(mx51_efikamx_powerkey), }; -static struct mtd_partition mx51_efikamx_spi_nor_partitions[] = { - { - .name = "u-boot", - .offset = 0, - .size = SZ_256K, - }, - { - .name = "config", - .offset = MTDPART_OFS_APPEND, - .size = SZ_64K, - }, -}; - -static struct flash_platform_data mx51_efikamx_spi_flash_data = { - .name = "spi_flash", - .parts = mx51_efikamx_spi_nor_partitions, - .nr_parts = ARRAY_SIZE(mx51_efikamx_spi_nor_partitions), - .type = "sst25vf032b", -}; - -static struct spi_board_info mx51_efikamx_spi_board_info[] __initdata = { - { - .modalias = "m25p80", - .max_speed_hz = 25000000, - .bus_num = 0, - .chip_select = 1, - .platform_data = &mx51_efikamx_spi_flash_data, - .irq = -1, - }, -}; - -static int mx51_efikamx_spi_cs[] = { - EFIKAMX_SPI_CS0, - EFIKAMX_SPI_CS1, -}; - -static const struct spi_imx_master mx51_efikamx_spi_pdata __initconst = { - .chipselect = mx51_efikamx_spi_cs, - .num_chipselect = ARRAY_SIZE(mx51_efikamx_spi_cs), -}; - void mx51_efikamx_reset(void) { if (system_rev == 0x11) @@ -314,14 +197,53 @@ void mx51_efikamx_reset(void) gpio_direction_output(EFIKAMX_RESET, 0); } -static void __init mxc_board_init(void) +static struct regulator *pwgt1, *pwgt2, *coincell; + +static void mx51_efikamx_power_off(void) +{ + if (!IS_ERR(coincell)) + regulator_disable(coincell); + + if (!IS_ERR(pwgt1) && !IS_ERR(pwgt2)) { + regulator_disable(pwgt2); + regulator_disable(pwgt1); + } + gpio_direction_output(EFIKAMX_POWEROFF, 1); +} + +static int __init mx51_efikamx_power_init(void) +{ + if (machine_is_mx51_efikamx()) { + pwgt1 = regulator_get(NULL, "pwgt1"); + pwgt2 = regulator_get(NULL, "pwgt2"); + if (!IS_ERR(pwgt1) && !IS_ERR(pwgt2)) { + regulator_enable(pwgt1); + regulator_enable(pwgt2); + } + gpio_request(EFIKAMX_POWEROFF, "poweroff"); + pm_power_off = mx51_efikamx_power_off; + + /* enable coincell charger. maybe need a small power driver ? */ + coincell = regulator_get(NULL, "coincell"); + if (!IS_ERR(coincell)) { + regulator_set_voltage(coincell, 3000000, 3000000); + regulator_enable(coincell); + } + + regulator_has_full_constraints(); + } + + return 0; +} +late_initcall(mx51_efikamx_power_init); + +static void __init mx51_efikamx_init(void) { mxc_iomux_v3_setup_multiple_pads(mx51efikamx_pads, ARRAY_SIZE(mx51efikamx_pads)); + efika_board_common_init(); + mx51_efikamx_board_id(); - mxc_register_device(&mxc_usbdr_host_device, &dr_utmi_config); - mxc_init_imx_uart(); - imx51_add_sdhci_esdhc_imx(0, NULL); /* on < 1.2 boards both SD controllers are used */ if (system_rev < 0x12) { @@ -332,10 +254,6 @@ static void __init mxc_board_init(void) platform_device_register(&mx51_efikamx_leds_device); imx51_add_gpio_keys(&mx51_efikamx_powerkey_data); - spi_register_board_info(mx51_efikamx_spi_board_info, - ARRAY_SIZE(mx51_efikamx_spi_board_info)); - imx51_add_ecspi(0, &mx51_efikamx_spi_pdata); - if (system_rev == 0x11) { gpio_request(EFIKAMX_RESET1_1, "reset"); gpio_direction_output(EFIKAMX_RESET1_1, 1); @@ -343,6 +261,20 @@ static void __init mxc_board_init(void) gpio_request(EFIKAMX_RESET, "reset"); gpio_direction_output(EFIKAMX_RESET, 1); } + + /* + * enable wifi by default only on mx + * sb and mx have same wlan pin but the value to enable it are + * different :/ + */ + gpio_request(EFIKA_WLAN_EN, "wlan_en"); + gpio_direction_output(EFIKA_WLAN_EN, 0); + msleep(10); + + gpio_request(EFIKA_WLAN_RESET, "wlan_rst"); + gpio_direction_output(EFIKA_WLAN_RESET, 0); + msleep(10); + gpio_set_value(EFIKA_WLAN_RESET, 1); } static void __init mx51_efikamx_timer_init(void) @@ -350,15 +282,16 @@ static void __init mx51_efikamx_timer_init(void) mx51_clocks_init(32768, 24000000, 22579200, 24576000); } -static struct sys_timer mxc_timer = { - .init = mx51_efikamx_timer_init, +static struct sys_timer mx51_efikamx_timer = { + .init = mx51_efikamx_timer_init, }; MACHINE_START(MX51_EFIKAMX, "Genesi EfikaMX nettop") /* Maintainer: Amit Kucheria <amit.kucheria@linaro.org> */ .boot_params = MX51_PHYS_OFFSET + 0x100, .map_io = mx51_map_io, + .init_early = imx51_init_early, .init_irq = mx51_init_irq, - .init_machine = mxc_board_init, - .timer = &mxc_timer, + .timer = &mx51_efikamx_timer, + .init_machine = mx51_efikamx_init, MACHINE_END |