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ARM: mxs/mx28evk: add mmc device
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Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Tested-by: Marc Kleine-Budde <mkl@pengutronix.de>
[sha: updated to Uwes v4 version]
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Shawn Guo authored and Sascha Hauer committed Mar 25, 2011
1 parent 1b6f1e8 commit 5bb2c82
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Showing 2 changed files with 90 additions and 0 deletions.
1 change: 1 addition & 0 deletions arch/arm/mach-mxs/Kconfig
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Original file line number Diff line number Diff line change
Expand Up @@ -36,6 +36,7 @@ config MACH_MX28EVK
select MXS_HAVE_PLATFORM_AUART
select MXS_HAVE_PLATFORM_FEC
select MXS_HAVE_PLATFORM_FLEXCAN
select MXS_HAVE_PLATFORM_MXS_MMC
select MXS_HAVE_PLATFORM_MXSFB
select MXS_OCOTP
default y
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89 changes: 89 additions & 0 deletions arch/arm/mach-mxs/mach-mx28evk.c
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Original file line number Diff line number Diff line change
Expand Up @@ -34,6 +34,11 @@
#define MX28EVK_LCD_ENABLE MXS_GPIO_NR(3, 30)
#define MX28EVK_FEC_PHY_RESET MXS_GPIO_NR(4, 13)

#define MX28EVK_MMC0_WRITE_PROTECT MXS_GPIO_NR(2, 12)
#define MX28EVK_MMC1_WRITE_PROTECT MXS_GPIO_NR(0, 28)
#define MX28EVK_MMC0_SLOT_POWER MXS_GPIO_NR(3, 28)
#define MX28EVK_MMC1_SLOT_POWER MXS_GPIO_NR(3, 29)

static const iomux_cfg_t mx28evk_pads[] __initconst = {
/* duart */
MX28_PAD_PWM0__DUART_RX | MXS_PAD_CTRL,
Expand Down Expand Up @@ -115,6 +120,65 @@ static const iomux_cfg_t mx28evk_pads[] __initconst = {
MX28_PAD_LCD_RESET__GPIO_3_30 | MXS_PAD_CTRL,
/* backlight control */
MX28_PAD_PWM2__GPIO_3_18 | 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),
/* write protect */
MX28_PAD_SSP1_SCK__GPIO_2_12 |
(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
/* slot power enable */
MX28_PAD_PWM3__GPIO_3_28 |
(MXS_PAD_4MA | 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),
};

/* fec */
Expand Down Expand Up @@ -258,6 +322,18 @@ static const struct mxsfb_platform_data mx28evk_mxsfb_pdata __initconst = {
.ld_intf_width = STMLCDIF_24BIT,
};

static struct mxs_mmc_platform_data mx28evk_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 mx28evk_init(void)
{
int ret;
Expand Down Expand Up @@ -297,6 +373,19 @@ static void __init mx28evk_init(void)
gpio_set_value(MX28EVK_BL_ENABLE, 1);

mx28_add_mxsfb(&mx28evk_mxsfb_pdata);

/* power on mmc slot by writing 0 to the gpio */
ret = gpio_request_one(MX28EVK_MMC0_SLOT_POWER, GPIOF_DIR_OUT,
"mmc0-slot-power");
if (ret)
pr_warn("failed to request gpio mmc0-slot-power: %d\n", ret);
mx28_add_mxs_mmc(0, &mx28evk_mmc_pdata[0]);

ret = gpio_request_one(MX28EVK_MMC1_SLOT_POWER, GPIOF_DIR_OUT,
"mmc1-slot-power");
if (ret)
pr_warn("failed to request gpio mmc1-slot-power: %d\n", ret);
mx28_add_mxs_mmc(1, &mx28evk_mmc_pdata[1]);
}

static void __init mx28evk_timer_init(void)
Expand Down

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