x86: add support for the RDC R-321x SoC (5e3a77e9) · Commits · e / devices / android_kernel_oneplus_sm8150

arch/x86/Kconfig

+13 −1

Original line number	Diff line number	Diff line
		@@ -291,6 +291,18 @@ config X86_ES7000
		Only choose this option if you have such a system, otherwise you
		should say N here.

		config X86_RDC321X
		bool "RDC R-321x SoC"
		depends on X86_32
		select M486
		select X86_REBOOTFIXUPS
		select GENERIC_GPIO
		select LEDS_GPIO
		help
		This option is needed for RDC R-321x system-on-chip, also known
		as R-8610-(G).
		If you don't have one of these chips, you should say N here.

		config X86_VSMP
		bool "Support for ScaleMP vSMP"
		depends on X86_64 && PCI
		@@ -637,7 +649,7 @@ config X86_REBOOTFIXUPS
		system.

		Currently, the only fixup is for the Geode machines using
		CS5530A and CS5536 chipsets.
		CS5530A and CS5536 chipsets and the RDC R-321x SoC.

		Say Y if you want to enable the fixup. Currently, it's safe to
		enable this option even if you don't need it.

arch/x86/Makefile

+5 −0

Original line number	Diff line number	Diff line
		@@ -139,6 +139,11 @@ mflags-$(CONFIG_X86_ES7000) := -Iinclude/asm-x86/mach-es7000
		fcore-$(CONFIG_X86_ES7000) := arch/x86/mach-es7000/
		mcore-$(CONFIG_X86_ES7000) := arch/x86/mach-default/

		# RDC R-321x subarch support
		mflags-$(CONFIG_X86_RDC321X) := -Iinclude/asm-x86/mach-rdc321x
		mcore-$(CONFIG_X86_RDC321X) := arch/x86/mach-default
		core-$(CONFIG_X86_RDC321X) += arch/x86/mach-rdc321x/

		# default subarch .h files
		mflags-y += -Iinclude/asm-x86/mach-default

arch/x86/mach-rdc321x/Makefile

0 → 100644

+5 −0

Original line number	Diff line number	Diff line
		#
		# Makefile for the RDC321x specific parts of the kernel
		#
		obj-$(CONFIG_X86_RDC321X) := gpio.o platform.o wdt.o

arch/x86/mach-rdc321x/gpio.c

0 → 100644

+91 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2007, OpenWrt.org, Florian Fainelli <florian@openwrt.org>
		* RDC321x architecture specific GPIO support
		*
		* This program is free software; you can redistribute it and/or modify it
		* under the terms of the GNU General Public License as published by the
		* Free Software Foundation; either version 2 of the License, or (at your
		* option) any later version.
		*/

		#include <linux/autoconf.h>
		#include <linux/init.h>
		#include <linux/io.h>
		#include <linux/types.h>
		#include <linux/module.h>
		#include <linux/delay.h>

		#include <asm/mach-rdc321x/rdc321x_defs.h>

		static inline int rdc_gpio_is_valid(unsigned gpio)
		{
		return (gpio <= RDC_MAX_GPIO);
		}

		static unsigned int rdc_gpio_read(unsigned gpio)
		{
		unsigned int val;

		val = 0x80000000 \| (7 << 11) \| ((gpio&0x20?0x84:0x48));
		outl(val, RDC3210_CFGREG_ADDR);
		udelay(10);
		val = inl(RDC3210_CFGREG_DATA);
		val \|= (0x1 << (gpio & 0x1F));
		outl(val, RDC3210_CFGREG_DATA);
		udelay(10);
		val = 0x80000000 \| (7 << 11) \| ((gpio&0x20?0x88:0x4C));
		outl(val, RDC3210_CFGREG_ADDR);
		udelay(10);
		val = inl(RDC3210_CFGREG_DATA);

		return val;
		}

		static void rdc_gpio_write(unsigned int val)
		{
		if (val) {
		outl(val, RDC3210_CFGREG_DATA);
		udelay(10);
		}
		}

		int rdc_gpio_get_value(unsigned gpio)
		{
		if (rdc_gpio_is_valid(gpio))
		return (int)rdc_gpio_read(gpio);
		else
		return -EINVAL;
		}
		EXPORT_SYMBOL(rdc_gpio_get_value);

		void rdc_gpio_set_value(unsigned gpio, int value)
		{
		unsigned int val;

		if (!rdc_gpio_is_valid(gpio))
		return;

		val = rdc_gpio_read(gpio);

		if (value)
		val &= ~(0x1 << (gpio & 0x1F));
		else
		val \|= (0x1 << (gpio & 0x1F));

		rdc_gpio_write(val);
		}
		EXPORT_SYMBOL(rdc_gpio_set_value);

		int rdc_gpio_direction_input(unsigned gpio)
		{
		return 0;
		}
		EXPORT_SYMBOL(rdc_gpio_direction_input);

		int rdc_gpio_direction_output(unsigned gpio, int value)
		{
		return 0;
		}
		EXPORT_SYMBOL(rdc_gpio_direction_output);

arch/x86/mach-rdc321x/platform.c

0 → 100644

+68 −0

Original line number	Diff line number	Diff line
		/*
		* Generic RDC321x platform devices
		*
		* Copyright (C) 2007 Florian Fainelli <florian@openwrt.org>
		*
		* This program is free software; you can redistribute it and/or
		* modify it under the terms of the GNU General Public License
		* as published by the Free Software Foundation; either version 2
		* of the License, or (at your option) any later version.
		*
		* This program is distributed in the hope that it will be useful,
		* but WITHOUT ANY WARRANTY; without even the implied warranty of
		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		* GNU General Public License for more details.
		*
		* You should have received a copy of the GNU General Public License
		* along with this program; if not, write to the
		* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
		* Boston, MA 02110-1301, USA.
		*
		*/

		#include <linux/init.h>
		#include <linux/kernel.h>
		#include <linux/list.h>
		#include <linux/device.h>
		#include <linux/platform_device.h>
		#include <linux/version.h>
		#include <linux/leds.h>

		#include <asm/gpio.h>

		/* LEDS */
		static struct gpio_led default_leds[] = {
		{ .name = "rdc:dmz", .gpio = 1, },
		};

		static struct gpio_led_platform_data rdc321x_led_data = {
		.num_leds = ARRAY_SIZE(default_leds),
		.leds = default_leds,
		};

		static struct platform_device rdc321x_leds = {
		.name = "leds-gpio",
		.id = -1,
		.dev = {
		.platform_data = &rdc321x_led_data,
		}
		};

		/* Watchdog */
		static struct platform_device rdc321x_wdt = {
		.name = "rdc321x-wdt",
		.id = -1,
		.num_resources = 0,
		};

		static struct platform_device *rdc321x_devs[] = {
		&rdc321x_leds,
		&rdc321x_wdt
		};

		static int __init rdc_board_setup(void)
		{
		return platform_add_devices(rdc321x_devs, ARRAY_SIZE(rdc321x_devs));
		}

		arch_initcall(rdc_board_setup);