Commit 96f3e256 authored by Lothar Waßmann's avatar Lothar Waßmann Committed by Sascha Hauer
Browse files

MXC IOMUX-V3 replace struct pad_desc with bitmapped cookie (step 2) 

This patch actually replaces the 'struct pad_desc' with a u64 cookie
to facilitate adding platform specific pad_ctrl settings to an
existing pad definition.

So, instead of:
	iomux_v3_cfg_t power_key = MX51_PAD_EIM_A27__GPIO_2_21;
	power_key.pad_ctrl = MX51_GPIO_PAD_CTRL_2;
	mxc_iomux_v3_setup_pad(&power_key);
one can write:
	mxc_iomux_v3_setup_pad((MX51_PAD_EIM_A27__GPIO_2_21 & ~MUX_PAD_CTRL_MASK) | MX51_GPIO_PAD_CTRL_2);

Patch applies to branch 'imx-for-2.6.38' of git://git.pengutronix.de/git/imx/linux-2.6



Signed-Off-By: default avatarLothar Waßmann <LW@KARO-electronics.de>

Signed-off-by: default avatarSascha Hauer <s.hauer@pengutronix.de>
parent 28a4f908

arch/arm/mach-mx3/mach-pcm043.c

+7 −7
Original line number Diff line number Diff line
@@ -237,7 +237,7 @@ static void pcm043_ac97_warm_reset(struct snd_ac97 *ac97) 
		return;

	}



	mxc_iomux_v3_setup_pad(&txfs_gpio);

	mxc_iomux_v3_setup_pad(txfs_gpio);



	/* warm reset */

	gpio_direction_output(AC97_GPIO_TXFS, 1);
@@ -245,7 +245,7 @@ static void pcm043_ac97_warm_reset(struct snd_ac97 *ac97) 
	gpio_set_value(AC97_GPIO_TXFS, 0);



	gpio_free(AC97_GPIO_TXFS);

	mxc_iomux_v3_setup_pad(&txfs);

	mxc_iomux_v3_setup_pad(txfs);

}



static void pcm043_ac97_cold_reset(struct snd_ac97 *ac97)
@@ -269,9 +269,9 @@ static void pcm043_ac97_cold_reset(struct snd_ac97 *ac97) 
	if (ret)

		goto err3;



	mxc_iomux_v3_setup_pad(&txfs_gpio);

	mxc_iomux_v3_setup_pad(&txd_gpio);

	mxc_iomux_v3_setup_pad(&reset_gpio);

	mxc_iomux_v3_setup_pad(txfs_gpio);

	mxc_iomux_v3_setup_pad(txd_gpio);

	mxc_iomux_v3_setup_pad(reset_gpio);



	gpio_direction_output(AC97_GPIO_TXFS, 0);

	gpio_direction_output(AC97_GPIO_TXD, 0);
@@ -281,8 +281,8 @@ static void pcm043_ac97_cold_reset(struct snd_ac97 *ac97) 
	udelay(10);

	gpio_direction_output(AC97_GPIO_RESET, 1);



	mxc_iomux_v3_setup_pad(&txd);

	mxc_iomux_v3_setup_pad(&txfs);

	mxc_iomux_v3_setup_pad(txd);

	mxc_iomux_v3_setup_pad(txfs);



	gpio_free(AC97_GPIO_RESET);

err3:

arch/arm/mach-mx5/board-mx51_babbage.c

+6 −6
Original line number Diff line number Diff line
@@ -193,7 +193,7 @@ static int gpio_usbh1_active(void) 
	int ret;



	/* Set USBH1_STP to GPIO and toggle it */

	mxc_iomux_v3_setup_pad(&usbh1stp_gpio);

	mxc_iomux_v3_setup_pad(usbh1stp_gpio);

	ret = gpio_request(BABBAGE_USBH1_STP, "usbh1_stp");



	if (ret) {
@@ -206,7 +206,7 @@ static int gpio_usbh1_active(void) 
	gpio_free(BABBAGE_USBH1_STP);



	/* De-assert USB PHY RESETB */

	mxc_iomux_v3_setup_pad(&phyreset_gpio);

	mxc_iomux_v3_setup_pad(phyreset_gpio);

	ret = gpio_request(BABBAGE_PHY_RESET, "phy_reset");



	if (ret) {
@@ -352,7 +352,8 @@ static const struct spi_imx_master mx51_babbage_spi_pdata __initconst = { 
static void __init mxc_board_init(void)

{

	iomux_v3_cfg_t usbh1stp = MX51_PAD_USBH1_STP__USBH1_STP;

	iomux_v3_cfg_t power_key = MX51_PAD_EIM_A27__GPIO_2_21;

	iomux_v3_cfg_t power_key = (MX51_PAD_EIM_A27__GPIO_2_21 &

				~MUX_PAD_CTRL_MASK) | MX51_GPIO_PAD_CTRL_2;



#if defined(CONFIG_CPU_FREQ_IMX)

	get_cpu_op = mx51_get_cpu_op;
@@ -364,8 +365,7 @@ static void __init mxc_board_init(void) 
	imx51_add_fec(NULL);



	/* Set the PAD settings for the pwr key. */

	power_key.pad_ctrl = MX51_GPIO_PAD_CTRL_2;

	mxc_iomux_v3_setup_pad(&power_key);

	mxc_iomux_v3_setup_pad(power_key);

	imx51_add_gpio_keys(&imx_button_data);



	imx51_add_imx_i2c(0, &babbage_i2c_data);
@@ -382,7 +382,7 @@ static void __init mxc_board_init(void) 
	gpio_usbh1_active();

	mxc_register_device(&mxc_usbh1_device, &usbh1_config);

	/* setback USBH1_STP to be function */

	mxc_iomux_v3_setup_pad(&usbh1stp);

	mxc_iomux_v3_setup_pad(usbh1stp);

	babbage_usbhub_reset();



	imx51_add_sdhci_esdhc_imx(0, NULL);

arch/arm/plat-mxc/include/mach/iomux-v3.h

+37 −53
Original line number Diff line number Diff line
@@ -42,58 +42,42 @@ 
 * If <padname> or <padmode> refers to a GPIO, it is named

 * GPIO_<unit>_<num>

 *

 * IOMUX/PAD Bit field definitions

 *

 * MUX_CTRL_OFS:	    0..11 (12)

 * PAD_CTRL_OFS:	   12..23 (12)

 * SEL_INPUT_OFS:	   24..35 (12)

 * MUX_MODE + SION:	   36..40  (5)

 * PAD_CTRL + NO_PAD_CTRL: 41..57 (17)

 * SEL_INP:		   58..61  (4)

 * reserved:		     63    (1)

*/



typedef struct deprecated_pad_desc {

	unsigned mux_ctrl_ofs:12; /* IOMUXC_SW_MUX_CTL_PAD offset */

	unsigned mux_mode:8;

	unsigned pad_ctrl_ofs:12; /* IOMUXC_SW_PAD_CTRL offset */

#define	NO_PAD_CTRL	(1 << 16)

	unsigned pad_ctrl:17;

	unsigned select_input_ofs:12; /* IOMUXC_SELECT_INPUT offset */

	unsigned select_input:3;

} iomux_v3_cfg_t;



static inline unsigned int MUX_CTRL_OFS(iomux_v3_cfg_t *pad)

{

	return pad->mux_ctrl_ofs;

}



static inline unsigned int MUX_MODE(iomux_v3_cfg_t *pad)

{

	return pad->mux_mode;

}



static inline unsigned int MUX_SELECT_INPUT_OFS(iomux_v3_cfg_t *pad)

{

	return pad->select_input_ofs;

}



static inline unsigned int MUX_SELECT_INPUT(iomux_v3_cfg_t *pad)

{

	return pad->select_input;

}



static inline unsigned int MUX_PAD_CTRL_OFS(iomux_v3_cfg_t *pad)

{

	return pad->pad_ctrl_ofs;

}



static inline unsigned int MUX_PAD_CTRL(iomux_v3_cfg_t *pad)

{

	return pad->pad_ctrl;

}



#define IOMUX_PAD(_pad_ctrl_ofs, _mux_ctrl_ofs, _mux_mode, _select_input_ofs, \

		_select_input, _pad_ctrl)				\

		{							\

			.mux_ctrl_ofs     = _mux_ctrl_ofs,		\

			.mux_mode         = _mux_mode,			\

			.pad_ctrl_ofs     = _pad_ctrl_ofs,		\

			.pad_ctrl         = _pad_ctrl,			\

			.select_input_ofs = _select_input_ofs,		\

			.select_input     = _select_input,		\

		}

typedef u64 iomux_v3_cfg_t;



#define MUX_CTRL_OFS_SHIFT	0

#define MUX_CTRL_OFS_MASK	((iomux_v3_cfg_t)0xfff << MUX_CTRL_OFS_SHIFT)

#define MUX_PAD_CTRL_OFS_SHIFT	12

#define MUX_PAD_CTRL_OFS_MASK	((iomux_v3_cfg_t)0xfff << MUX_PAD_CTRL_OFS_SHIFT)

#define MUX_SEL_INPUT_OFS_SHIFT	24

#define MUX_SEL_INPUT_OFS_MASK	((iomux_v3_cfg_t)0xfff << MUX_SEL_INPUT_OFS_SHIFT)



#define MUX_MODE_SHIFT		36

#define MUX_MODE_MASK		((iomux_v3_cfg_t)0x1f << MUX_MODE_SHIFT)

#define MUX_PAD_CTRL_SHIFT	41

#define MUX_PAD_CTRL_MASK	((iomux_v3_cfg_t)0x1ffff << MUX_PAD_CTRL_SHIFT)

#define NO_PAD_CTRL		((iomux_v3_cfg_t)1 << (MUX_PAD_CTRL_SHIFT + 16))

#define MUX_SEL_INPUT_SHIFT	58

#define MUX_SEL_INPUT_MASK	((iomux_v3_cfg_t)0xf << MUX_SEL_INPUT_SHIFT)



#define IOMUX_PAD(_pad_ctrl_ofs, _mux_ctrl_ofs, _mux_mode, _sel_input_ofs, \

		_sel_input, _pad_ctrl)					\

	(((iomux_v3_cfg_t)(_mux_ctrl_ofs) << MUX_CTRL_OFS_SHIFT) |	\

		((iomux_v3_cfg_t)(_mux_mode) << MUX_MODE_SHIFT) |	\

		((iomux_v3_cfg_t)(_pad_ctrl_ofs) << MUX_PAD_CTRL_OFS_SHIFT) | \

		((iomux_v3_cfg_t)(_pad_ctrl) << MUX_PAD_CTRL_SHIFT) |	\

		((iomux_v3_cfg_t)(_sel_input_ofs) << MUX_SEL_INPUT_OFS_SHIFT) | \

		((iomux_v3_cfg_t)(_sel_input) << MUX_SEL_INPUT_SHIFT))



/*

 * Use to set PAD control
@@ -137,7 +121,7 @@ static inline unsigned int MUX_PAD_CTRL(iomux_v3_cfg_t *pad) 
/*

 * setups a single pad in the iomuxer

 */

int mxc_iomux_v3_setup_pad(iomux_v3_cfg_t *pad);

int mxc_iomux_v3_setup_pad(iomux_v3_cfg_t pad);



/*

 * setups mutliple pads

arch/arm/plat-mxc/iomux-v3.c

+16 −9
Original line number Diff line number Diff line
@@ -34,17 +34,24 @@ static void __iomem *base; 
/*

 * configures a single pad in the iomuxer

 */

int mxc_iomux_v3_setup_pad(iomux_v3_cfg_t *pad)

int mxc_iomux_v3_setup_pad(iomux_v3_cfg_t pad)

{

	if (MUX_CTRL_OFS(pad))

		__raw_writel(MUX_MODE(pad), base + MUX_CTRL_OFS(pad));

	u32 mux_ctrl_ofs = (pad & MUX_CTRL_OFS_MASK) >> MUX_CTRL_OFS_SHIFT;

	u32 mux_mode = (pad & MUX_MODE_MASK) >> MUX_MODE_SHIFT;

	u32 sel_input_ofs = (pad & MUX_SEL_INPUT_OFS_MASK) >> MUX_SEL_INPUT_OFS_SHIFT;

	u32 sel_input = (pad & MUX_SEL_INPUT_MASK) >> MUX_SEL_INPUT_SHIFT;

	u32 pad_ctrl_ofs = (pad & MUX_PAD_CTRL_OFS_MASK) >> MUX_PAD_CTRL_OFS_SHIFT;

	u32 pad_ctrl = (pad & MUX_PAD_CTRL_MASK) >> MUX_PAD_CTRL_SHIFT;



	if (MUX_SELECT_INPUT_OFS(pad))

		__raw_writel(MUX_SELECT_INPUT(pad),

			base + MUX_SELECT_INPUT_OFS(pad));

	if (mux_ctrl_ofs)

		__raw_writel(mux_mode, base + mux_ctrl_ofs);



	if (sel_input_ofs)

		__raw_writel(sel_input, base + sel_input_ofs);



	if (!(pad_ctrl & NO_PAD_CTRL) && pad_ctrl_ofs)

		__raw_writel(pad_ctrl, base + pad_ctrl_ofs);



	if (!(MUX_PAD_CTRL(pad) & NO_PAD_CTRL) && MUX_PAD_CTRL_OFS(pad))

		__raw_writel(MUX_PAD_CTRL(pad), base + MUX_PAD_CTRL_OFS(pad));

	return 0;

}

EXPORT_SYMBOL(mxc_iomux_v3_setup_pad);
@@ -56,7 +63,7 @@ int mxc_iomux_v3_setup_multiple_pads(iomux_v3_cfg_t *pad_list, unsigned count) 
	int ret;



	for (i = 0; i < count; i++) {

		ret = mxc_iomux_v3_setup_pad(p);

		ret = mxc_iomux_v3_setup_pad(*p);

		if (ret)

			return ret;

		p++;

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