diff options
Diffstat (limited to 'arch/arm/mach-imx/iomux-v1.c')
| -rw-r--r-- | arch/arm/mach-imx/iomux-v1.c | 174 |
1 files changed, 0 insertions, 174 deletions
diff --git a/arch/arm/mach-imx/iomux-v1.c b/arch/arm/mach-imx/iomux-v1.c deleted file mode 100644 index a4bec3b9b2b3..000000000000 --- a/arch/arm/mach-imx/iomux-v1.c +++ /dev/null @@ -1,174 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * arch/arm/plat-mxc/iomux-v1.c - * - * Copyright (C) 2004 Sascha Hauer, Synertronixx GmbH - * Copyright (C) 2009 Uwe Kleine-Koenig, Pengutronix - * - * Common code for i.MX1, i.MX21 and i.MX27 - */ - -#include <linux/errno.h> -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/string.h> -#include <linux/gpio.h> - -#include <asm/mach/map.h> - -#include "hardware.h" -#include "iomux-v1.h" - -static void __iomem *imx_iomuxv1_baseaddr; -static unsigned imx_iomuxv1_numports; - -static inline unsigned long imx_iomuxv1_readl(unsigned offset) -{ - return imx_readl(imx_iomuxv1_baseaddr + offset); -} - -static inline void imx_iomuxv1_writel(unsigned long val, unsigned offset) -{ - imx_writel(val, imx_iomuxv1_baseaddr + offset); -} - -static inline void imx_iomuxv1_rmwl(unsigned offset, - unsigned long mask, unsigned long value) -{ - unsigned long reg = imx_iomuxv1_readl(offset); - - reg &= ~mask; - reg |= value; - - imx_iomuxv1_writel(reg, offset); -} - -static inline void imx_iomuxv1_set_puen( - unsigned int port, unsigned int pin, int on) -{ - unsigned long mask = 1 << pin; - - imx_iomuxv1_rmwl(MXC_PUEN(port), mask, on ? mask : 0); -} - -static inline void imx_iomuxv1_set_ddir( - unsigned int port, unsigned int pin, int out) -{ - unsigned long mask = 1 << pin; - - imx_iomuxv1_rmwl(MXC_DDIR(port), mask, out ? mask : 0); -} - -static inline void imx_iomuxv1_set_gpr( - unsigned int port, unsigned int pin, int af) -{ - unsigned long mask = 1 << pin; - - imx_iomuxv1_rmwl(MXC_GPR(port), mask, af ? mask : 0); -} - -static inline void imx_iomuxv1_set_gius( - unsigned int port, unsigned int pin, int inuse) -{ - unsigned long mask = 1 << pin; - - imx_iomuxv1_rmwl(MXC_GIUS(port), mask, inuse ? mask : 0); -} - -static inline void imx_iomuxv1_set_ocr( - unsigned int port, unsigned int pin, unsigned int ocr) -{ - unsigned long shift = (pin & 0xf) << 1; - unsigned long mask = 3 << shift; - unsigned long value = ocr << shift; - unsigned long offset = pin < 16 ? MXC_OCR1(port) : MXC_OCR2(port); - - imx_iomuxv1_rmwl(offset, mask, value); -} - -static inline void imx_iomuxv1_set_iconfa( - unsigned int port, unsigned int pin, unsigned int aout) -{ - unsigned long shift = (pin & 0xf) << 1; - unsigned long mask = 3 << shift; - unsigned long value = aout << shift; - unsigned long offset = pin < 16 ? MXC_ICONFA1(port) : MXC_ICONFA2(port); - - imx_iomuxv1_rmwl(offset, mask, value); -} - -static inline void imx_iomuxv1_set_iconfb( - unsigned int port, unsigned int pin, unsigned int bout) -{ - unsigned long shift = (pin & 0xf) << 1; - unsigned long mask = 3 << shift; - unsigned long value = bout << shift; - unsigned long offset = pin < 16 ? MXC_ICONFB1(port) : MXC_ICONFB2(port); - - imx_iomuxv1_rmwl(offset, mask, value); -} - -int mxc_gpio_mode(int gpio_mode) -{ - unsigned int pin = gpio_mode & GPIO_PIN_MASK; - unsigned int port = (gpio_mode & GPIO_PORT_MASK) >> GPIO_PORT_SHIFT; - unsigned int ocr = (gpio_mode & GPIO_OCR_MASK) >> GPIO_OCR_SHIFT; - unsigned int aout = (gpio_mode >> GPIO_AOUT_SHIFT) & 3; - unsigned int bout = (gpio_mode >> GPIO_BOUT_SHIFT) & 3; - - if (port >= imx_iomuxv1_numports) - return -EINVAL; - - /* Pullup enable */ - imx_iomuxv1_set_puen(port, pin, gpio_mode & GPIO_PUEN); - - /* Data direction */ - imx_iomuxv1_set_ddir(port, pin, gpio_mode & GPIO_OUT); - - /* Primary / alternate function */ - imx_iomuxv1_set_gpr(port, pin, gpio_mode & GPIO_AF); - - /* use as gpio? */ - imx_iomuxv1_set_gius(port, pin, !(gpio_mode & (GPIO_PF | GPIO_AF))); - - imx_iomuxv1_set_ocr(port, pin, ocr); - - imx_iomuxv1_set_iconfa(port, pin, aout); - - imx_iomuxv1_set_iconfb(port, pin, bout); - - return 0; -} - -static int imx_iomuxv1_setup_multiple(const int *list, unsigned count) -{ - size_t i; - int ret = 0; - - for (i = 0; i < count; ++i) { - ret = mxc_gpio_mode(list[i]); - - if (ret) - return ret; - } - - return ret; -} - -int mxc_gpio_setup_multiple_pins(const int *pin_list, unsigned count, - const char *label) -{ - int ret; - - ret = imx_iomuxv1_setup_multiple(pin_list, count); - return ret; -} - -int __init imx_iomuxv1_init(void __iomem *base, int numports) -{ - imx_iomuxv1_baseaddr = base; - imx_iomuxv1_numports = numports; - - return 0; -} |