From 7138a7f9ac3640df808c295c411bc4acb3d1965e Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Eric=20B=C3=A9nard?= Date: Tue, 8 May 2012 09:20:23 +0200 Subject: ARM: imx: eukrea_cpuimx51sd: support rev2 PCB MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit rev1 were shipped with silicon 2.0, rev2 with silicon 3.0 so we are using the silicon version to know the PCB revision Signed-off-by: Eric Bénard Cc: Sascha Hauer Signed-off-by: Sascha Hauer --- arch/arm/mach-imx/mach-cpuimx51sd.c | 49 +++++++++++++++++++++++++++++++------ 1 file changed, 41 insertions(+), 8 deletions(-) (limited to 'arch/arm/mach-imx') diff --git a/arch/arm/mach-imx/mach-cpuimx51sd.c b/arch/arm/mach-imx/mach-cpuimx51sd.c index 3e1d9fe..ce341a6 100644 --- a/arch/arm/mach-imx/mach-cpuimx51sd.c +++ b/arch/arm/mach-imx/mach-cpuimx51sd.c @@ -41,11 +41,13 @@ #define USBH1_RST IMX_GPIO_NR(2, 28) #define ETH_RST IMX_GPIO_NR(2, 31) -#define TSC2007_IRQGPIO IMX_GPIO_NR(3, 12) +#define TSC2007_IRQGPIO_REV2 IMX_GPIO_NR(3, 12) +#define TSC2007_IRQGPIO_REV3 IMX_GPIO_NR(4, 0) #define CAN_IRQGPIO IMX_GPIO_NR(1, 1) #define CAN_RST IMX_GPIO_NR(4, 15) #define CAN_NCS IMX_GPIO_NR(4, 24) -#define CAN_RXOBF IMX_GPIO_NR(1, 4) +#define CAN_RXOBF_REV2 IMX_GPIO_NR(1, 4) +#define CAN_RXOBF_REV3 IMX_GPIO_NR(3, 12) #define CAN_RX1BF IMX_GPIO_NR(1, 6) #define CAN_TXORTS IMX_GPIO_NR(1, 7) #define CAN_TX1RTS IMX_GPIO_NR(1, 8) @@ -90,6 +92,10 @@ static iomux_v3_cfg_t eukrea_cpuimx51sd_pads[] = { MX51_PAD_I2C1_CLK__GPIO4_16, MX51_PAD_I2C1_DAT__GPIO4_17, + /* I2C1 */ + MX51_PAD_SD2_CMD__I2C1_SCL, + MX51_PAD_SD2_CLK__I2C1_SDA, + /* CAN */ MX51_PAD_CSPI1_MOSI__ECSPI1_MOSI, MX51_PAD_CSPI1_MISO__ECSPI1_MISO, @@ -108,15 +114,27 @@ static iomux_v3_cfg_t eukrea_cpuimx51sd_pads[] = { NEW_PAD_CTRL(MX51_PAD_GPIO_NAND__GPIO_NAND, PAD_CTL_PUS_22K_UP | PAD_CTL_PKE | PAD_CTL_SRE_FAST | PAD_CTL_DSE_HIGH | PAD_CTL_PUE | PAD_CTL_HYS), + NEW_PAD_CTRL(MX51_PAD_NANDF_D8__GPIO4_0, PAD_CTL_PUS_22K_UP | + PAD_CTL_PKE | PAD_CTL_SRE_FAST | + PAD_CTL_DSE_HIGH | PAD_CTL_PUE | PAD_CTL_HYS), }; static const struct imxuart_platform_data uart_pdata __initconst = { .flags = IMXUART_HAVE_RTSCTS, }; +static int tsc2007_get_pendown_state(void) +{ + if (mx51_revision() < IMX_CHIP_REVISION_3_0) + return !gpio_get_value(TSC2007_IRQGPIO_REV2); + else + return !gpio_get_value(TSC2007_IRQGPIO_REV3); +} + static struct tsc2007_platform_data tsc2007_info = { .model = 2007, .x_plate_ohms = 180, + .get_pendown_state = tsc2007_get_pendown_state, }; static struct i2c_board_info eukrea_cpuimx51sd_i2c_devices[] = { @@ -126,7 +144,6 @@ static struct i2c_board_info eukrea_cpuimx51sd_i2c_devices[] = { I2C_BOARD_INFO("tsc2007", 0x49), .type = "tsc2007", .platform_data = &tsc2007_info, - .irq = IMX_GPIO_TO_IRQ(TSC2007_IRQGPIO), }, }; @@ -255,10 +272,14 @@ static const struct spi_imx_master cpuimx51sd_ecspi1_pdata __initconst = { .num_chipselect = ARRAY_SIZE(cpuimx51sd_spi1_cs), }; -static struct platform_device *platform_devices[] __initdata = { +static struct platform_device *rev2_platform_devices[] __initdata = { &hsi2c_gpio_device, }; +static const struct imxi2c_platform_data cpuimx51sd_i2c_data __initconst = { + .bitrate = 100000, +}; + static void __init eukrea_cpuimx51sd_init(void) { imx51_soc_init(); @@ -292,13 +313,25 @@ static void __init eukrea_cpuimx51sd_init(void) spi_register_board_info(cpuimx51sd_spi_device, ARRAY_SIZE(cpuimx51sd_spi_device)); - gpio_request(TSC2007_IRQGPIO, "tsc2007_irq"); - gpio_direction_input(TSC2007_IRQGPIO); - gpio_free(TSC2007_IRQGPIO); + if (mx51_revision() < IMX_CHIP_REVISION_3_0) { + eukrea_cpuimx51sd_i2c_devices[1].irq = + gpio_to_irq(TSC2007_IRQGPIO_REV2), + platform_add_devices(rev2_platform_devices, + ARRAY_SIZE(rev2_platform_devices)); + gpio_request(TSC2007_IRQGPIO_REV2, "tsc2007_irq"); + gpio_direction_input(TSC2007_IRQGPIO_REV2); + gpio_free(TSC2007_IRQGPIO_REV2); + } else { + eukrea_cpuimx51sd_i2c_devices[1].irq = + gpio_to_irq(TSC2007_IRQGPIO_REV3), + imx51_add_imx_i2c(0, &cpuimx51sd_i2c_data); + gpio_request(TSC2007_IRQGPIO_REV3, "tsc2007_irq"); + gpio_direction_input(TSC2007_IRQGPIO_REV3); + gpio_free(TSC2007_IRQGPIO_REV3); + } i2c_register_board_info(0, eukrea_cpuimx51sd_i2c_devices, ARRAY_SIZE(eukrea_cpuimx51sd_i2c_devices)); - platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices)); if (otg_mode_host) imx51_add_mxc_ehci_otg(&dr_utmi_config); -- cgit v1.1