Commit 1cb59f9f authored by Lothar Waßmann's avatar Lothar Waßmann Committed by Sascha Hauer

ARM: mxs: Initial support for Ka-Ro TX28

Based on code created by Lothar Waßmann, Sascha Hauer, Wolfram Sang and
me.
Signed-off-by: default avatarLothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: default avatarSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: default avatarWolfram Sang <w.sang@pengutronix.de>
Signed-off-by: default avatarUwe Kleine-König <u.kleine-koenig@pengutronix.de>
parent ccb24d50
......@@ -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
......@@ -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/
......@@ -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
......
......@@ -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:
......
/*
* 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
/*
* 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;
}
/*
* 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);
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