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linux-stable/arch/arm/mach-mxs/mach-m28evk.c
Shawn Guo d1654b803f ARM: mxs: enable pinctrl dummy states 
The mxs pinctrl driver will only support DT probe.  That said, the mxs
device drivers can only get pinctrl state from pinctrl subsystem when
the drivers get probed from device tree.

Before converting the whole mxs platform support over to device tree,
we need to enable pinctrl dummy states for those non-DT board files
to ensure the pinctrl API adopted by mxs device drivers will work for
both DT and non-DT probe.

Instead of calling pinctrl_provide_dummies() directly in every board
file, the patch introduces soc specific calls mx23_soc_init() and
mx28_soc_init() for boards' .init_machine hook to invoke, so that
any soc specific setup for non-DT boot only can be added there.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-05-08 23:05:17 +08:00

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/*
* Copyright (C) 2011
* Stefano Babic, DENX Software Engineering, <sbabic@denx.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 as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <linux/leds.h>
#include <linux/irq.h>
#include <linux/clk.h>
#include <linux/i2c.h>
#include <linux/i2c/at24.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <mach/common.h>
#include <mach/iomux-mx28.h>
#include "devices-mx28.h"
#define M28EVK_GPIO_USERLED1 MXS_GPIO_NR(3, 16)
#define M28EVK_GPIO_USERLED2 MXS_GPIO_NR(3, 17)
#define MX28EVK_BL_ENABLE MXS_GPIO_NR(3, 18)
#define M28EVK_LCD_ENABLE MXS_GPIO_NR(3, 28)
#define MX28EVK_MMC0_WRITE_PROTECT MXS_GPIO_NR(2, 12)
#define MX28EVK_MMC1_WRITE_PROTECT MXS_GPIO_NR(0, 28)
static const iomux_cfg_t m28evk_pads[] __initconst = {
/* duart */
MX28_PAD_AUART0_CTS__DUART_RX | MXS_PAD_CTRL,
MX28_PAD_AUART0_RTS__DUART_TX | MXS_PAD_CTRL,
/* auart0 */
MX28_PAD_AUART0_RX__AUART0_RX | MXS_PAD_CTRL,
MX28_PAD_AUART0_TX__AUART0_TX | MXS_PAD_CTRL,
/* auart3 */
MX28_PAD_AUART3_RX__AUART3_RX | MXS_PAD_CTRL,
MX28_PAD_AUART3_TX__AUART3_TX | MXS_PAD_CTRL,
MX28_PAD_AUART3_CTS__AUART3_CTS | MXS_PAD_CTRL,
MX28_PAD_AUART3_RTS__AUART3_RTS | MXS_PAD_CTRL,
#define MXS_PAD_FEC (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP)
/* fec0 */
MX28_PAD_ENET0_MDC__ENET0_MDC | MXS_PAD_FEC,
MX28_PAD_ENET0_MDIO__ENET0_MDIO | MXS_PAD_FEC,
MX28_PAD_ENET0_RX_EN__ENET0_RX_EN | MXS_PAD_FEC,
MX28_PAD_ENET0_RXD0__ENET0_RXD0 | MXS_PAD_FEC,
MX28_PAD_ENET0_RXD1__ENET0_RXD1 | MXS_PAD_FEC,
MX28_PAD_ENET0_TX_EN__ENET0_TX_EN | MXS_PAD_FEC,
MX28_PAD_ENET0_TXD0__ENET0_TXD0 | MXS_PAD_FEC,
MX28_PAD_ENET0_TXD1__ENET0_TXD1 | MXS_PAD_FEC,
MX28_PAD_ENET_CLK__CLKCTRL_ENET | MXS_PAD_FEC,
/* fec1 */
MX28_PAD_ENET0_CRS__ENET1_RX_EN | MXS_PAD_FEC,
MX28_PAD_ENET0_RXD2__ENET1_RXD0 | MXS_PAD_FEC,
MX28_PAD_ENET0_RXD3__ENET1_RXD1 | MXS_PAD_FEC,
MX28_PAD_ENET0_COL__ENET1_TX_EN | MXS_PAD_FEC,
MX28_PAD_ENET0_TXD2__ENET1_TXD0 | MXS_PAD_FEC,
MX28_PAD_ENET0_TXD3__ENET1_TXD1 | MXS_PAD_FEC,
/* flexcan0 */
MX28_PAD_GPMI_RDY2__CAN0_TX,
MX28_PAD_GPMI_RDY3__CAN0_RX,
/* flexcan1 */
MX28_PAD_GPMI_CE2N__CAN1_TX,
MX28_PAD_GPMI_CE3N__CAN1_RX,
/* I2C */
MX28_PAD_I2C0_SCL__I2C0_SCL,
MX28_PAD_I2C0_SDA__I2C0_SDA,
/* mxsfb (lcdif) */
MX28_PAD_LCD_D00__LCD_D0 | MXS_PAD_CTRL,
MX28_PAD_LCD_D01__LCD_D1 | MXS_PAD_CTRL,
MX28_PAD_LCD_D02__LCD_D2 | MXS_PAD_CTRL,
MX28_PAD_LCD_D03__LCD_D3 | MXS_PAD_CTRL,
MX28_PAD_LCD_D04__LCD_D4 | MXS_PAD_CTRL,
MX28_PAD_LCD_D05__LCD_D5 | MXS_PAD_CTRL,
MX28_PAD_LCD_D06__LCD_D6 | MXS_PAD_CTRL,
MX28_PAD_LCD_D07__LCD_D7 | MXS_PAD_CTRL,
MX28_PAD_LCD_D08__LCD_D8 | MXS_PAD_CTRL,
MX28_PAD_LCD_D09__LCD_D9 | MXS_PAD_CTRL,
MX28_PAD_LCD_D10__LCD_D10 | MXS_PAD_CTRL,
MX28_PAD_LCD_D11__LCD_D11 | MXS_PAD_CTRL,
MX28_PAD_LCD_D12__LCD_D12 | MXS_PAD_CTRL,
MX28_PAD_LCD_D13__LCD_D13 | MXS_PAD_CTRL,
MX28_PAD_LCD_D14__LCD_D14 | MXS_PAD_CTRL,
MX28_PAD_LCD_D15__LCD_D15 | MXS_PAD_CTRL,
MX28_PAD_LCD_D16__LCD_D16 | MXS_PAD_CTRL,
MX28_PAD_LCD_D17__LCD_D17 | MXS_PAD_CTRL,
MX28_PAD_LCD_D18__LCD_D18 | MXS_PAD_CTRL,
MX28_PAD_LCD_D19__LCD_D19 | MXS_PAD_CTRL,
MX28_PAD_LCD_D20__LCD_D20 | MXS_PAD_CTRL,
MX28_PAD_LCD_D21__LCD_D21 | MXS_PAD_CTRL,
MX28_PAD_LCD_D22__LCD_D22 | MXS_PAD_CTRL,
MX28_PAD_LCD_D23__LCD_D23 | MXS_PAD_CTRL,
MX28_PAD_LCD_ENABLE__LCD_ENABLE | MXS_PAD_CTRL,
MX28_PAD_LCD_DOTCLK__LCD_DOTCLK | MXS_PAD_CTRL,
/* 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),
/* mmc1 */
MX28_PAD_GPMI_D00__SSP1_D0 |
(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX28_PAD_GPMI_D01__SSP1_D1 |
(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX28_PAD_GPMI_D02__SSP1_D2 |
(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX28_PAD_GPMI_D03__SSP1_D3 |
(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX28_PAD_GPMI_D04__SSP1_D4 |
(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX28_PAD_GPMI_D05__SSP1_D5 |
(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX28_PAD_GPMI_D06__SSP1_D6 |
(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX28_PAD_GPMI_D07__SSP1_D7 |
(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX28_PAD_GPMI_RDY1__SSP1_CMD |
(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX28_PAD_GPMI_RDY0__SSP1_CARD_DETECT |
(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
MX28_PAD_GPMI_WRN__SSP1_SCK |
(MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
/* write protect */
MX28_PAD_GPMI_RESETN__GPIO_0_28 |
(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
/* slot power enable */
MX28_PAD_PWM4__GPIO_3_29 |
(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
/* led */
MX28_PAD_PWM0__GPIO_3_16 | MXS_PAD_CTRL,
MX28_PAD_PWM1__GPIO_3_17 | MXS_PAD_CTRL,
/* nand */
MX28_PAD_GPMI_D00__GPMI_D0 |
(MXS_PAD_4MA | MXS_PAD_1V8 | MXS_PAD_NOPULL),
MX28_PAD_GPMI_D01__GPMI_D1 |
(MXS_PAD_4MA | MXS_PAD_1V8 | MXS_PAD_NOPULL),
MX28_PAD_GPMI_D02__GPMI_D2 |
(MXS_PAD_4MA | MXS_PAD_1V8 | MXS_PAD_NOPULL),
MX28_PAD_GPMI_D03__GPMI_D3 |
(MXS_PAD_4MA | MXS_PAD_1V8 | MXS_PAD_NOPULL),
MX28_PAD_GPMI_D04__GPMI_D4 |
(MXS_PAD_4MA | MXS_PAD_1V8 | MXS_PAD_NOPULL),
MX28_PAD_GPMI_D05__GPMI_D5 |
(MXS_PAD_4MA | MXS_PAD_1V8 | MXS_PAD_NOPULL),
MX28_PAD_GPMI_D06__GPMI_D6 |
(MXS_PAD_4MA | MXS_PAD_1V8 | MXS_PAD_NOPULL),
MX28_PAD_GPMI_D07__GPMI_D7 |
(MXS_PAD_4MA | MXS_PAD_1V8 | MXS_PAD_NOPULL),
MX28_PAD_GPMI_CE0N__GPMI_CE0N |
(MXS_PAD_4MA | MXS_PAD_1V8 | MXS_PAD_NOPULL),
MX28_PAD_GPMI_RDY0__GPMI_READY0 |
(MXS_PAD_4MA | MXS_PAD_1V8 | MXS_PAD_NOPULL),
MX28_PAD_GPMI_RDN__GPMI_RDN |
(MXS_PAD_12MA | MXS_PAD_1V8 | MXS_PAD_PULLUP),
MX28_PAD_GPMI_WRN__GPMI_WRN |
(MXS_PAD_12MA | MXS_PAD_1V8 | MXS_PAD_PULLUP),
MX28_PAD_GPMI_ALE__GPMI_ALE |
(MXS_PAD_4MA | MXS_PAD_1V8 | MXS_PAD_PULLUP),
MX28_PAD_GPMI_CLE__GPMI_CLE |
(MXS_PAD_4MA | MXS_PAD_1V8 | MXS_PAD_PULLUP),
MX28_PAD_GPMI_RESETN__GPMI_RESETN |
(MXS_PAD_12MA | MXS_PAD_1V8 | MXS_PAD_PULLUP),
/* Backlight */
MX28_PAD_PWM3__GPIO_3_28 | MXS_PAD_CTRL,
};
/* led */
static const struct gpio_led m28evk_leds[] __initconst = {
{
.name = "user-led1",
.default_trigger = "heartbeat",
.gpio = M28EVK_GPIO_USERLED1,
},
{
.name = "user-led2",
.default_trigger = "heartbeat",
.gpio = M28EVK_GPIO_USERLED2,
},
};
static const struct gpio_led_platform_data m28evk_led_data __initconst = {
.leds = m28evk_leds,
.num_leds = ARRAY_SIZE(m28evk_leds),
};
static struct fec_platform_data mx28_fec_pdata[] __initdata = {
{
/* fec0 */
.phy = PHY_INTERFACE_MODE_RMII,
}, {
/* fec1 */
.phy = PHY_INTERFACE_MODE_RMII,
},
};
static int __init m28evk_fec_get_mac(void)
{
int i;
u32 val;
const u32 *ocotp = mxs_get_ocotp();
if (!ocotp)
return -ETIMEDOUT;
/*
* OCOTP only stores the last 4 octets for each mac address,
* so hard-code DENX OUI (C0:E5:4E) here.
*/
for (i = 0; i < 2; i++) {
val = ocotp[i];
mx28_fec_pdata[i].mac[0] = 0xC0;
mx28_fec_pdata[i].mac[1] = 0xE5;
mx28_fec_pdata[i].mac[2] = 0x4E;
mx28_fec_pdata[i].mac[3] = (val >> 16) & 0xff;
mx28_fec_pdata[i].mac[4] = (val >> 8) & 0xff;
mx28_fec_pdata[i].mac[5] = (val >> 0) & 0xff;
}
return 0;
}
/* mxsfb (lcdif) */
static struct fb_videomode m28evk_video_modes[] = {
{
.name = "Ampire AM-800480R2TMQW-T01H",
.refresh = 60,
.xres = 800,
.yres = 480,
.pixclock = 30066, /* picosecond (33.26 MHz) */
.left_margin = 0,
.right_margin = 256,
.upper_margin = 0,
.lower_margin = 45,
.hsync_len = 1,
.vsync_len = 1,
.sync = FB_SYNC_DATA_ENABLE_HIGH_ACT,
},
};
static const struct mxsfb_platform_data m28evk_mxsfb_pdata __initconst = {
.mode_list = m28evk_video_modes,
.mode_count = ARRAY_SIZE(m28evk_video_modes),
.default_bpp = 16,
.ld_intf_width = STMLCDIF_18BIT,
};
static struct at24_platform_data m28evk_eeprom = {
.byte_len = 16384,
.page_size = 32,
.flags = AT24_FLAG_ADDR16,
};
static struct i2c_board_info m28_stk5v3_i2c_boardinfo[] __initdata = {
{
I2C_BOARD_INFO("at24", 0x51), /* E0=1, E1=0, E2=0 */
.platform_data = &m28evk_eeprom,
},
};
static struct mxs_mmc_platform_data m28evk_mmc_pdata[] __initdata = {
{
/* mmc0 */
.wp_gpio = MX28EVK_MMC0_WRITE_PROTECT,
.flags = SLOTF_8_BIT_CAPABLE,
}, {
/* mmc1 */
.wp_gpio = MX28EVK_MMC1_WRITE_PROTECT,
.flags = SLOTF_8_BIT_CAPABLE,
},
};
static void __init m28evk_init(void)
{
mx28_soc_init();
mxs_iomux_setup_multiple_pads(m28evk_pads, ARRAY_SIZE(m28evk_pads));
mx28_add_duart();
mx28_add_auart0();
mx28_add_auart3();
if (!m28evk_fec_get_mac()) {
mx28_add_fec(0, &mx28_fec_pdata[0]);
mx28_add_fec(1, &mx28_fec_pdata[1]);
}
mx28_add_flexcan(0, NULL);
mx28_add_flexcan(1, NULL);
mx28_add_mxsfb(&m28evk_mxsfb_pdata);
mx28_add_mxs_mmc(0, &m28evk_mmc_pdata[0]);
mx28_add_mxs_mmc(1, &m28evk_mmc_pdata[1]);
gpio_led_register_device(0, &m28evk_led_data);
/* I2C */
mx28_add_mxs_i2c(0);
i2c_register_board_info(0, m28_stk5v3_i2c_boardinfo,
ARRAY_SIZE(m28_stk5v3_i2c_boardinfo));
}
static void __init m28evk_timer_init(void)
{
mx28_clocks_init();
}
static struct sys_timer m28evk_timer = {
.init = m28evk_timer_init,
};
MACHINE_START(M28EVK, "DENX M28 EVK")
.map_io = mx28_map_io,
.init_irq = mx28_init_irq,
.timer = &m28evk_timer,
.init_machine = m28evk_init,
.restart = mxs_restart,
MACHINE_END
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