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gpio: mxc_gpio: add support for i.MX8

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Add i.MX8 support, there are 8 GPIO banks.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Anatolij Gustschin <agust@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
This commit is contained in:
Peng Fan 2018-10-18 14:28:27 +02:00 committed by Stefano Babic
parent 2d58296f3e
commit 8b2a31f133
2 changed files with 42 additions and 9 deletions
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21
arch/arm/include/asm/arch-imx8/gpio.h Normal file
View File

@ -0,0 +1,21 @@
/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright 2018 NXP
*/
#ifndef __ASM_ARCH_IMX8_GPIO_H
#define __ASM_ARCH_IMX8_GPIO_H
#if !(defined(__KERNEL_STRICT_NAMES) || defined(__ASSEMBLY__))
/* GPIO registers */
struct gpio_regs {
u32 gpio_dr; /* data */
u32 gpio_dir; /* direction */
u32 gpio_psr; /* pad satus */
};
#endif
/* IMX8 the GPIO index is from 0 not 1 */
#define IMX_GPIO_NR(port, index) (((port) * 32) + ((index) & 31))
#endif /* __ASM_ARCH_IMX8_GPIO_H */

30
drivers/gpio/mxc_gpio.c
View File

@ -40,21 +40,27 @@ static unsigned long gpio_ports[] = {
[2] = GPIO3_BASE_ADDR,
#if defined(CONFIG_MX25) || defined(CONFIG_MX27) || defined(CONFIG_MX51) || \
defined(CONFIG_MX53) || defined(CONFIG_MX6) || \
defined(CONFIG_MX7) || defined(CONFIG_MX8M)
defined(CONFIG_MX7) || defined(CONFIG_MX8M) || \
defined(CONFIG_ARCH_IMX8)
[3] = GPIO4_BASE_ADDR,
#endif
#if defined(CONFIG_MX27) || defined(CONFIG_MX53) || defined(CONFIG_MX6) || \
defined(CONFIG_MX7) || defined(CONFIG_MX8M)
defined(CONFIG_MX7) || defined(CONFIG_MX8M) || \
defined(CONFIG_ARCH_IMX8)
[4] = GPIO5_BASE_ADDR,
#if !(defined(CONFIG_MX6UL) || defined(CONFIG_MX6ULL) || defined(CONFIG_MX8M))
[5] = GPIO6_BASE_ADDR,
#endif
#endif
#if defined(CONFIG_MX53) || defined(CONFIG_MX6) || defined(CONFIG_MX7)
#if defined(CONFIG_MX53) || defined(CONFIG_MX6) || defined(CONFIG_MX7) || \
defined(CONFIG_ARCH_IMX8)
#if !(defined(CONFIG_MX6UL) || defined(CONFIG_MX6ULL))
[6] = GPIO7_BASE_ADDR,
#endif
#endif
#if defined(CONFIG_ARCH_IMX8)
[7] = GPIO8_BASE_ADDR,
#endif
};
static int mxc_gpio_direction(unsigned int gpio,
@ -347,19 +353,22 @@ static const struct mxc_gpio_plat mxc_plat[] = {
{ 2, (struct gpio_regs *)GPIO3_BASE_ADDR },
#if defined(CONFIG_MX25) || defined(CONFIG_MX27) || defined(CONFIG_MX51) || \
defined(CONFIG_MX53) || defined(CONFIG_MX6) || \
defined(CONFIG_MX8M)
defined(CONFIG_MX8M) || defined(CONFIG_ARCH_IMX8)
{ 3, (struct gpio_regs *)GPIO4_BASE_ADDR },
#endif
#if defined(CONFIG_MX27) || defined(CONFIG_MX53) || defined(CONFIG_MX6) || \
defined(CONFIG_MX8M)
defined(CONFIG_MX8M) || defined(CONFIG_ARCH_IMX8)
{ 4, (struct gpio_regs *)GPIO5_BASE_ADDR },
#ifndef CONFIG_MX8M
{ 5, (struct gpio_regs *)GPIO6_BASE_ADDR },
#endif
#endif
#if defined(CONFIG_MX53) || defined(CONFIG_MX6)
#if defined(CONFIG_MX53) || defined(CONFIG_MX6) || defined(CONFIG_ARCH_IMX8)
{ 6, (struct gpio_regs *)GPIO7_BASE_ADDR },
#endif
#if defined(CONFIG_ARCH_IMX8)
{ 7, (struct gpio_regs *)GPIO8_BASE_ADDR },
#endif
};
U_BOOT_DEVICES(mxc_gpios) = {
@ -368,19 +377,22 @@ U_BOOT_DEVICES(mxc_gpios) = {
{ "gpio_mxc", &mxc_plat[2] },
#if defined(CONFIG_MX25) || defined(CONFIG_MX27) || defined(CONFIG_MX51) || \
defined(CONFIG_MX53) || defined(CONFIG_MX6) || \
defined(CONFIG_MX8M)
defined(CONFIG_MX8M) || defined(CONFIG_ARCH_IMX8)
{ "gpio_mxc", &mxc_plat[3] },
#endif
#if defined(CONFIG_MX27) || defined(CONFIG_MX53) || defined(CONFIG_MX6) || \
defined(CONFIG_MX8M)
defined(CONFIG_MX8M) || defined(CONFIG_ARCH_IMX8)
{ "gpio_mxc", &mxc_plat[4] },
#ifndef CONFIG_MX8M
{ "gpio_mxc", &mxc_plat[5] },
#endif
#endif
#if defined(CONFIG_MX53) || defined(CONFIG_MX6)
#if defined(CONFIG_MX53) || defined(CONFIG_MX6) || defined(CONFIG_ARCH_IMX8)
{ "gpio_mxc", &mxc_plat[6] },
#endif
#if defined(CONFIG_ARCH_IMX8)
{ "gpio_mxc", &mxc_plat[7] },
#endif
};
#endif
#endif