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imx: iomux-v3: add imx7d support for iomuxc

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* Add imx7d support for iomux controller
* imx7d has two iomux controllers iomuxc (0x3033000) and iomuxc-lpsr
  (0x302C0000) each conroller provides control and mux mode pad
  registers but shares iomuxc input select register with iomuxc-lpsr
  IOMUX_CONFIG_LPSR flag is used to properly set daisy chain settings
  for iomuxc-lpsr pads.
* Since mx7d introduces LPSR IOMUX pins, add new base to IOMUX v3
  driver for these LPSR pins.

Signed-off-by: Adrian Alonso <aalonso@freescale.com>
Signed-off-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: Ye.Li <B37916@freescale.com>
This commit is contained in:
Adrian Alonso 2015-08-11 11:19:50 -05:00 committed by Stefano Babic
parent 48469c2d88
commit 03f0e4c7cd
4 changed files with 1377 additions and 0 deletions
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18
arch/arm/imx-common/iomux-v3.c
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@ -41,6 +41,18 @@ void imx_iomux_v3_setup_pad(iomux_v3_cfg_t pad)
}
#endif
#ifdef CONFIG_IOMUX_LPSR
u32 lpsr = (pad & MUX_MODE_LPSR) >> MUX_MODE_SHIFT;
if (lpsr == IOMUX_CONFIG_LPSR) {
base = (void *)IOMUXC_LPSR_BASE_ADDR;
mux_mode &= ~IOMUX_CONFIG_LPSR;
/* set daisy chain sel_input */
if (sel_input_ofs)
sel_input_ofs += IOMUX_LPSR_SEL_INPUT_OFS;
}
#endif
if (mux_ctrl_ofs)
__raw_writel(mux_mode, base + mux_ctrl_ofs);
@ -55,6 +67,12 @@ void imx_iomux_v3_setup_pad(iomux_v3_cfg_t pad)
if (!(pad_ctrl & NO_PAD_CTRL) && pad_ctrl_ofs)
__raw_writel(pad_ctrl, base + pad_ctrl_ofs);
#endif
#ifdef CONFIG_IOMUX_LPSR
if (lpsr == IOMUX_CONFIG_LPSR)
base = (void *)IOMUXC_BASE_ADDR;
#endif
}
/* configures a list of pads within declared with IOMUX_PADS macro */

19
arch/arm/include/asm/arch-mx7/mx7-pins.h Normal file
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@ -0,0 +1,19 @@
/*
* Copyright (C) 2015 Freescale Semiconductor, Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __ASM_ARCH_MX7_PINS_H__
#define __ASM_ARCH_MX7_PINS_H__
#include <asm/imx-common/iomux-v3.h>
#if defined(CONFIG_MX7D)
#include "mx7d_pins.h"
#elif defined(CONFIG_MX7S)
#include "mx7s_pins.h"
#else
#error "Please select cpu"
#endif /* CONFIG_MX7D */
#endif /*__ASM_ARCH_MX7_PINS_H__ */

1308
arch/arm/include/asm/arch-mx7/mx7d_pins.h Normal file
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File diff suppressed because it is too large Load Diff

32
arch/arm/include/asm/imx-common/iomux-v3.h
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@ -85,6 +85,36 @@ typedef u64 iomux_v3_cfg_t;
#define NO_PAD_CTRL (1 << 17)
#ifdef CONFIG_MX7
#define IOMUX_LPSR_SEL_INPUT_OFS 0x70000
#define IOMUX_CONFIG_LPSR 0x8
#define MUX_MODE_LPSR ((iomux_v3_cfg_t)IOMUX_CONFIG_LPSR << \
MUX_MODE_SHIFT)
#define PAD_CTL_DSE_1P8V_140OHM (0x0<<0)
#define PAD_CTL_DSE_1P8V_35OHM (0x1<<0)
#define PAD_CTL_DSE_1P8V_70OHM (0x2<<0)
#define PAD_CTL_DSE_1P8V_23OHM (0x3<<0)
#define PAD_CTL_DSE_3P3V_196OHM (0x0<<0)
#define PAD_CTL_DSE_3P3V_49OHM (0x1<<0)
#define PAD_CTL_DSE_3P3V_98OHM (0x2<<0)
#define PAD_CTL_DSE_3P3V_32OHM (0x3<<0)
#define PAD_CTL_SRE_FAST (0 << 2)
#define PAD_CTL_SRE_SLOW (0x1 << 2)
#define PAD_CTL_HYS (0x1 << 3)
#define PAD_CTL_PUE (0x1 << 4)
#define PAD_CTL_PUS_PD100KOHM ((0x0 << 5) | PAD_CTL_PUE)
#define PAD_CTL_PUS_PU5KOHM ((0x1 << 5) | PAD_CTL_PUE)
#define PAD_CTL_PUS_PU47KOHM ((0x2 << 5) | PAD_CTL_PUE)
#define PAD_CTL_PUS_PU100KOHM ((0x3 << 5) | PAD_CTL_PUE)
#else
#ifdef CONFIG_MX6
#define PAD_CTL_HYS (1 << 16)
@ -173,6 +203,8 @@ typedef u64 iomux_v3_cfg_t;
#define PAD_CTL_SRE_SLOW (0 << 0)
#define PAD_CTL_SRE_FAST (1 << 0)
#endif
#define IOMUX_CONFIG_SION 0x10
#define GPIO_PIN_MASK 0x1f