diff options
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-mxs/Kconfig | 12 | ||||
| -rw-r--r-- | arch/arm/mach-mxs/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/mach-mxs/include/mach/mxs.h | 9 | ||||
| -rw-r--r-- | arch/arm/mach-mxs/include/mach/uncompress.h | 1 | ||||
| -rw-r--r-- | arch/arm/mach-mxs/mach-tx28.c | 173 | ||||
| -rw-r--r-- | arch/arm/mach-mxs/module-tx28.c | 131 | ||||
| -rw-r--r-- | arch/arm/mach-mxs/module-tx28.h | 9 |
7 files changed, 335 insertions, 2 deletions
diff --git a/arch/arm/mach-mxs/Kconfig b/arch/arm/mach-mxs/Kconfig index 836cc81a63a..895d06604e1 100644 --- a/arch/arm/mach-mxs/Kconfig +++ b/arch/arm/mach-mxs/Kconfig @@ -39,4 +39,16 @@ config MACH_MX28EVK Include support for MX28EVK platform. This includes specific configurations for the board and its peripherals. +config MODULE_TX28 + bool + select SOC_IMX28 + select MXS_HAVE_AMBA_DUART + select MXS_HAVE_PLATFORM_AUART + select MXS_HAVE_PLATFORM_FEC + select MXS_HAVE_PLATFORM_MXS_PWM + +config MACH_TX28 + bool "Ka-Ro TX28 module" + select MODULE_TX28 + endif diff --git a/arch/arm/mach-mxs/Makefile b/arch/arm/mach-mxs/Makefile index 6b26f02e72a..2f1f6141ca7 100644 --- a/arch/arm/mach-mxs/Makefile +++ b/arch/arm/mach-mxs/Makefile @@ -9,5 +9,7 @@ obj-$(CONFIG_SOC_IMX28) += clock-mx28.o mm-mx28.o obj-$(CONFIG_MACH_MX23EVK) += mach-mx23evk.o obj-$(CONFIG_MACH_MX28EVK) += mach-mx28evk.o +obj-$(CONFIG_MODULE_TX28) += module-tx28.o +obj-$(CONFIG_MACH_TX28) += mach-tx28.o obj-y += devices/ diff --git a/arch/arm/mach-mxs/include/mach/mxs.h b/arch/arm/mach-mxs/include/mach/mxs.h index f186c08c291..35a89dd2724 100644 --- a/arch/arm/mach-mxs/include/mach/mxs.h +++ b/arch/arm/mach-mxs/include/mach/mxs.h @@ -28,8 +28,13 @@ /* * MXS CPU types */ -#define cpu_is_mx23() (machine_is_mx23evk()) -#define cpu_is_mx28() (machine_is_mx28evk()) +#define cpu_is_mx23() ( \ + machine_is_mx23evk() || \ + 0) +#define cpu_is_mx28() ( \ + machine_is_mx28evk() || \ + machine_is_tx28() || \ + 0) /* * IO addresses common to MXS-based diff --git a/arch/arm/mach-mxs/include/mach/uncompress.h b/arch/arm/mach-mxs/include/mach/uncompress.h index a005e76f34f..f12a1732d8b 100644 --- a/arch/arm/mach-mxs/include/mach/uncompress.h +++ b/arch/arm/mach-mxs/include/mach/uncompress.h @@ -63,6 +63,7 @@ static inline void __arch_decomp_setup(unsigned long arch_id) mxs_duart_base = MX23_DUART_BASE_ADDR; break; case MACH_TYPE_MX28EVK: + case MACH_TYPE_TX28: mxs_duart_base = MX28_DUART_BASE_ADDR; break; default: diff --git a/arch/arm/mach-mxs/mach-tx28.c b/arch/arm/mach-mxs/mach-tx28.c new file mode 100644 index 00000000000..b609b84784d --- /dev/null +++ b/arch/arm/mach-mxs/mach-tx28.c @@ -0,0 +1,173 @@ +/* + * Copyright (C) 2010 <LW@KARO-electronics.de> + * + * based on: mach-mx28_evk.c + * Copyright 2010 Freescale Semiconductor, Inc. All Rights Reserved. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation + */ +#include <linux/kernel.h> +#include <linux/gpio.h> +#include <linux/leds.h> +#include <linux/platform_device.h> +#include <linux/spi/spi.h> +#include <linux/spi/spi_gpio.h> + +#include <asm/mach/arch.h> +#include <asm/mach/time.h> + +#include <mach/common.h> +#include <mach/iomux-mx28.h> + +#include "devices-mx28.h" +#include "module-tx28.h" + +#define TX28_STK5_GPIO_LED MXS_GPIO_NR(4, 10) + +static const iomux_cfg_t tx28_stk5v3_pads[] __initconst = { + /* LED */ + MX28_PAD_ENET0_RXD3__GPIO_4_10 | + MXS_PAD_3V3 | MXS_PAD_4MA | MXS_PAD_NOPULL, + + /* framebuffer */ +#define LCD_MODE (MXS_PAD_3V3 | MXS_PAD_4MA) + MX28_PAD_LCD_D00__LCD_D0 | LCD_MODE, + MX28_PAD_LCD_D01__LCD_D1 | LCD_MODE, + MX28_PAD_LCD_D02__LCD_D2 | LCD_MODE, + MX28_PAD_LCD_D03__LCD_D3 | LCD_MODE, + MX28_PAD_LCD_D04__LCD_D4 | LCD_MODE, + MX28_PAD_LCD_D05__LCD_D5 | LCD_MODE, + MX28_PAD_LCD_D06__LCD_D6 | LCD_MODE, + MX28_PAD_LCD_D07__LCD_D7 | LCD_MODE, + MX28_PAD_LCD_D08__LCD_D8 | LCD_MODE, + MX28_PAD_LCD_D09__LCD_D9 | LCD_MODE, + MX28_PAD_LCD_D10__LCD_D10 | LCD_MODE, + MX28_PAD_LCD_D11__LCD_D11 | LCD_MODE, + MX28_PAD_LCD_D12__LCD_D12 | LCD_MODE, + MX28_PAD_LCD_D13__LCD_D13 | LCD_MODE, + MX28_PAD_LCD_D14__LCD_D14 | LCD_MODE, + MX28_PAD_LCD_D15__LCD_D15 | LCD_MODE, + MX28_PAD_LCD_D16__LCD_D16 | LCD_MODE, + MX28_PAD_LCD_D17__LCD_D17 | LCD_MODE, + MX28_PAD_LCD_D18__LCD_D18 | LCD_MODE, + MX28_PAD_LCD_D19__LCD_D19 | LCD_MODE, + MX28_PAD_LCD_D20__LCD_D20 | LCD_MODE, + MX28_PAD_LCD_D21__LCD_D21 | LCD_MODE, + MX28_PAD_LCD_D22__LCD_D22 | LCD_MODE, + MX28_PAD_LCD_D23__LCD_D23 | LCD_MODE, + MX28_PAD_LCD_RD_E__LCD_VSYNC | LCD_MODE, + MX28_PAD_LCD_WR_RWN__LCD_HSYNC | LCD_MODE, + MX28_PAD_LCD_RS__LCD_DOTCLK | LCD_MODE, + MX28_PAD_LCD_CS__LCD_CS | LCD_MODE, + MX28_PAD_LCD_VSYNC__LCD_VSYNC | LCD_MODE, + MX28_PAD_LCD_HSYNC__LCD_HSYNC | LCD_MODE, + MX28_PAD_LCD_DOTCLK__LCD_DOTCLK | LCD_MODE, + MX28_PAD_LCD_ENABLE__GPIO_1_31 | LCD_MODE, + MX28_PAD_LCD_RESET__GPIO_3_30 | LCD_MODE, + MX28_PAD_PWM0__PWM_0 | LCD_MODE, + + /* UART1 */ + MX28_PAD_AUART0_CTS__DUART_RX, + MX28_PAD_AUART0_RTS__DUART_TX, + MX28_PAD_AUART0_TX__DUART_RTS, + MX28_PAD_AUART0_RX__DUART_CTS, + + /* UART2 */ + MX28_PAD_AUART1_RX__AUART1_RX, + MX28_PAD_AUART1_TX__AUART1_TX, + MX28_PAD_AUART1_RTS__AUART1_RTS, + MX28_PAD_AUART1_CTS__AUART1_CTS, + + /* CAN */ + MX28_PAD_GPMI_RDY2__CAN0_TX, + MX28_PAD_GPMI_RDY3__CAN0_RX, + + /* I2C */ + MX28_PAD_I2C0_SCL__I2C0_SCL, + MX28_PAD_I2C0_SDA__I2C0_SDA, + + /* TSC2007 */ + MX28_PAD_SAIF0_MCLK__GPIO_3_20 | MXS_PAD_3V3 | MXS_PAD_4MA | MXS_PAD_PULLUP, + + /* MMC0 */ + MX28_PAD_SSP0_DATA0__SSP0_D0 | + (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), + MX28_PAD_SSP0_DATA1__SSP0_D1 | + (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), + MX28_PAD_SSP0_DATA2__SSP0_D2 | + (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), + MX28_PAD_SSP0_DATA3__SSP0_D3 | + (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), + MX28_PAD_SSP0_DATA4__SSP0_D4 | + (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), + MX28_PAD_SSP0_DATA5__SSP0_D5 | + (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), + MX28_PAD_SSP0_DATA6__SSP0_D6 | + (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), + MX28_PAD_SSP0_DATA7__SSP0_D7 | + (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), + MX28_PAD_SSP0_CMD__SSP0_CMD | + (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), + MX28_PAD_SSP0_DETECT__SSP0_CARD_DETECT | + (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_NOPULL), + MX28_PAD_SSP0_SCK__SSP0_SCK | + (MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_NOPULL), +}; + +static struct gpio_led tx28_stk5v3_leds[] = { + { + .name = "GPIO-LED", + .default_trigger = "heartbeat", + .gpio = TX28_STK5_GPIO_LED, + }, +}; + +static const struct gpio_led_platform_data tx28_stk5v3_led_data __initconst = { + .leds = tx28_stk5v3_leds, + .num_leds = ARRAY_SIZE(tx28_stk5v3_leds), +}; + +static struct spi_board_info tx28_spi_board_info[] = { + { + .modalias = "spidev", + .max_speed_hz = 20000000, + .bus_num = 0, + .chip_select = 1, + .controller_data = (void *)SPI_GPIO_NO_CHIPSELECT, + .mode = SPI_MODE_0, + }, +}; + +static void __init tx28_stk5v3_init(void) +{ + mxs_iomux_setup_multiple_pads(tx28_stk5v3_pads, + ARRAY_SIZE(tx28_stk5v3_pads)); + + mx28_add_duart(); /* UART1 */ + mx28_add_auart(1); /* UART2 */ + + tx28_add_fec0(); + /* spi via ssp will be added when available */ + spi_register_board_info(tx28_spi_board_info, + ARRAY_SIZE(tx28_spi_board_info)); + mxs_add_platform_device("leds-gpio", 0, NULL, 0, + &tx28_stk5v3_led_data, sizeof(tx28_stk5v3_led_data)); +} + +static void __init tx28_timer_init(void) +{ + mx28_clocks_init(); +} + +static struct sys_timer tx28_timer = { + .init = tx28_timer_init, +}; + +MACHINE_START(TX28, "Ka-Ro electronics TX28 module") + .map_io = mx28_map_io, + .init_irq = mx28_init_irq, + .init_machine = tx28_stk5v3_init, + .timer = &tx28_timer, +MACHINE_END diff --git a/arch/arm/mach-mxs/module-tx28.c b/arch/arm/mach-mxs/module-tx28.c new file mode 100644 index 00000000000..fa0b154da67 --- /dev/null +++ b/arch/arm/mach-mxs/module-tx28.c @@ -0,0 +1,131 @@ +/* + * Copyright (C) 2010 <LW@KARO-electronics.de> + * + * This program is free software; you can redistribute it and/or modify it under + * the terms of the GNU General Public License version 2 as published by the + * Free Software Foundation. + */ + +#include <linux/delay.h> +#include <linux/fec.h> +#include <linux/gpio.h> + +#include <mach/iomux-mx28.h> +#include "../devices-mx28.h" + +#include "module-tx28.h" + +#define TX28_FEC_PHY_POWER MXS_GPIO_NR(3, 29) +#define TX28_FEC_PHY_RESET MXS_GPIO_NR(4, 13) + +static const iomux_cfg_t tx28_fec_gpio_pads[] __initconst = { + /* PHY POWER */ + MX28_PAD_PWM4__GPIO_3_29 | + MXS_PAD_4MA | MXS_PAD_NOPULL | MXS_PAD_3V3, + /* PHY RESET */ + MX28_PAD_ENET0_RX_CLK__GPIO_4_13 | + MXS_PAD_4MA | MXS_PAD_NOPULL | MXS_PAD_3V3, + /* Mode strap pins 0-2 */ + MX28_PAD_ENET0_RXD0__GPIO_4_3 | + MXS_PAD_8MA | MXS_PAD_PULLUP | MXS_PAD_3V3, + MX28_PAD_ENET0_RXD1__GPIO_4_4 | + MXS_PAD_8MA | MXS_PAD_PULLUP | MXS_PAD_3V3, + MX28_PAD_ENET0_RX_EN__GPIO_4_2 | + MXS_PAD_8MA | MXS_PAD_PULLUP | MXS_PAD_3V3, + /* nINT */ + MX28_PAD_ENET0_TX_CLK__GPIO_4_5 | + MXS_PAD_4MA | MXS_PAD_NOPULL | MXS_PAD_3V3, + + MX28_PAD_ENET0_MDC__GPIO_4_0, + MX28_PAD_ENET0_MDIO__GPIO_4_1, + MX28_PAD_ENET0_TX_EN__GPIO_4_6, + MX28_PAD_ENET0_TXD0__GPIO_4_7, + MX28_PAD_ENET0_TXD1__GPIO_4_8, + MX28_PAD_ENET_CLK__GPIO_4_16, +}; + +#define FEC_MODE (MXS_PAD_8MA | MXS_PAD_PULLUP | MXS_PAD_3V3) +static const iomux_cfg_t tx28_fec_pads[] __initconst = { + MX28_PAD_ENET0_MDC__ENET0_MDC | FEC_MODE, + MX28_PAD_ENET0_MDIO__ENET0_MDIO | FEC_MODE, + MX28_PAD_ENET0_RX_EN__ENET0_RX_EN | FEC_MODE, + MX28_PAD_ENET0_RXD0__ENET0_RXD0 | FEC_MODE, + MX28_PAD_ENET0_RXD1__ENET0_RXD1 | FEC_MODE, + MX28_PAD_ENET0_TX_EN__ENET0_TX_EN | FEC_MODE, + MX28_PAD_ENET0_TXD0__ENET0_TXD0 | FEC_MODE, + MX28_PAD_ENET0_TXD1__ENET0_TXD1 | FEC_MODE, + MX28_PAD_ENET_CLK__CLKCTRL_ENET | FEC_MODE, +}; + +static const struct fec_platform_data tx28_fec_data __initconst = { + .phy = PHY_INTERFACE_MODE_RMII, +}; + +int __init tx28_add_fec0(void) +{ + int i, ret; + + pr_debug("%s: Switching FEC PHY power off\n", __func__); + ret = mxs_iomux_setup_multiple_pads(tx28_fec_gpio_pads, + ARRAY_SIZE(tx28_fec_gpio_pads)); + for (i = 0; i < ARRAY_SIZE(tx28_fec_gpio_pads); i++) { + unsigned int gpio = MXS_GPIO_NR(PAD_BANK(tx28_fec_gpio_pads[i]), + PAD_PIN(tx28_fec_gpio_pads[i])); + + ret = gpio_request(gpio, "FEC"); + if (ret) { + pr_err("Failed to request GPIO_%d_%d: %d\n", + PAD_BANK(tx28_fec_gpio_pads[i]), + PAD_PIN(tx28_fec_gpio_pads[i]), ret); + goto free_gpios; + } + ret = gpio_direction_output(gpio, 0); + if (ret) { + pr_err("Failed to set direction of GPIO_%d_%d to output: %d\n", + gpio / 32 + 1, gpio % 32, ret); + goto free_gpios; + } + } + + /* Power up fec phy */ + pr_debug("%s: Switching FEC PHY power on\n", __func__); + ret = gpio_direction_output(TX28_FEC_PHY_POWER, 1); + if (ret) { + pr_err("Failed to power on PHY: %d\n", ret); + goto free_gpios; + } + mdelay(26); /* 25ms according to data sheet */ + + /* nINT */ + gpio_direction_input(MXS_GPIO_NR(4, 5)); + /* Mode strap pins */ + gpio_direction_output(MXS_GPIO_NR(4, 2), 1); + gpio_direction_output(MXS_GPIO_NR(4, 3), 1); + gpio_direction_output(MXS_GPIO_NR(4, 4), 1); + + udelay(100); /* minimum assertion time for nRST */ + + pr_debug("%s: Deasserting FEC PHY RESET\n", __func__); + gpio_set_value(TX28_FEC_PHY_RESET, 1); + + ret = mxs_iomux_setup_multiple_pads(tx28_fec_pads, + ARRAY_SIZE(tx28_fec_pads)); + if (ret) { + pr_debug("%s: mxs_iomux_setup_multiple_pads() failed with rc: %d\n", + __func__, ret); + goto free_gpios; + } + pr_debug("%s: Registering FEC device\n", __func__); + mx28_add_fec(0, &tx28_fec_data); + return 0; + +free_gpios: + while (--i >= 0) { + unsigned int gpio = MXS_GPIO_NR(PAD_BANK(tx28_fec_gpio_pads[i]), + PAD_PIN(tx28_fec_gpio_pads[i])); + + gpio_free(gpio); + } + + return ret; +} diff --git a/arch/arm/mach-mxs/module-tx28.h b/arch/arm/mach-mxs/module-tx28.h new file mode 100644 index 00000000000..df9e1b6e81b --- /dev/null +++ b/arch/arm/mach-mxs/module-tx28.h @@ -0,0 +1,9 @@ +/* + * Copyright (C) 2010 Pengutronix + * Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de> + * + * This program is free software; you can redistribute it and/or modify it under + * the terms of the GNU General Public License version 2 as published by the + * Free Software Foundation. + */ +int __init tx28_add_fec0(void); |