[xburst] Add 2.6.35 patches

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@22463 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 238 insertions, 0 deletions

diff --git a/target/linux/xburst/patches-2.6.35/005-timer.patch b/target/linux/xburst/patches-2.6.35/005-timer.patch
new file mode 100644
index 0000000000..2e117de4b6
--- /dev/null
+++ b/target/linux/xburst/patches-2.6.35/005-timer.patch
@@ -0,0 +1,238 @@
+From ad817ad0a57d0fa6041071395d4cf0d2e9a44635 Mon Sep 17 00:00:00 2001
+From: Lars-Peter Clausen <lars@metafoo.de>
+Date: Sat, 19 Jun 2010 04:08:09 +0000
+Subject: [PATCH] MIPS: JZ4740: Add timer support
+
+Add support for the timer/counter unit on a JZ4740 SoC.  This code is used
+as a common base for the JZ4740 clocksource/clockevent implementation and
+PWM support.
+
+Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
+Cc: linux-mips@linux-mips.org
+Cc: linux-kernel@vger.kernel.org
+Patchwork: https://patchwork.linux-mips.org/patch/1396/
+Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
+---
+ arch/mips/include/asm/mach-jz4740/timer.h |   22 +++++
+ arch/mips/jz4740/timer.c                  |   48 ++++++++++
+ arch/mips/jz4740/timer.h                  |  136 +++++++++++++++++++++++++++++
+ 3 files changed, 206 insertions(+), 0 deletions(-)
+ create mode 100644 arch/mips/include/asm/mach-jz4740/timer.h
+ create mode 100644 arch/mips/jz4740/timer.c
+ create mode 100644 arch/mips/jz4740/timer.h
+
+--- /dev/null
++++ b/arch/mips/include/asm/mach-jz4740/timer.h
+@@ -0,0 +1,22 @@
++/*
++ *  Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.de>
++ *  JZ4740 platform timer 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.
++ *
++ *  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.,
++ *  675 Mass Ave, Cambridge, MA 02139, USA.
++ *
++ */
++
++#ifndef __ASM_MACH_JZ4740_TIMER
++#define __ASM_MACH_JZ4740_TIMER
++
++void jz4740_timer_enable_watchdog(void);
++void jz4740_timer_disable_watchdog(void);
++
++#endif
+--- /dev/null
++++ b/arch/mips/jz4740/timer.c
+@@ -0,0 +1,48 @@
++/*
++ *  Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.de>
++ *  JZ4740 platform timer 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.
++ *
++ *  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.,
++ *  675 Mass Ave, Cambridge, MA 02139, USA.
++ *
++ */
++
++#include <linux/io.h>
++#include <linux/kernel.h>
++#include <linux/module.h>
++
++#include "timer.h"
++
++#include <asm/mach-jz4740/base.h>
++
++void __iomem *jz4740_timer_base;
++
++void jz4740_timer_enable_watchdog(void)
++{
++	writel(BIT(16), jz4740_timer_base + JZ_REG_TIMER_STOP_CLEAR);
++}
++
++void jz4740_timer_disable_watchdog(void)
++{
++	writel(BIT(16), jz4740_timer_base + JZ_REG_TIMER_STOP_SET);
++}
++
++void __init jz4740_timer_init(void)
++{
++	jz4740_timer_base = ioremap(JZ4740_TCU_BASE_ADDR, 0x100);
++
++	if (!jz4740_timer_base)
++		panic("Failed to ioremap timer registers");
++
++	/* Disable all timer clocks except for those used as system timers */
++	writel(0x000100fc, jz4740_timer_base + JZ_REG_TIMER_STOP_SET);
++
++	/* Timer irqs are unmasked by default, mask them */
++	writel(0x00ff00ff, jz4740_timer_base + JZ_REG_TIMER_MASK_SET);
++}
+--- /dev/null
++++ b/arch/mips/jz4740/timer.h
+@@ -0,0 +1,136 @@
++/*
++ *  Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.de>
++ *  JZ4740 platform timer 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.
++ *
++ *  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.,
++ *  675 Mass Ave, Cambridge, MA 02139, USA.
++ *
++ */
++
++#ifndef __MIPS_JZ4740_TIMER_H__
++#define __MIPS_JZ4740_TIMER_H__
++
++#include <linux/module.h>
++#include <linux/io.h>
++
++#define JZ_REG_TIMER_STOP		0x0C
++#define JZ_REG_TIMER_STOP_SET		0x1C
++#define JZ_REG_TIMER_STOP_CLEAR		0x2C
++#define JZ_REG_TIMER_ENABLE		0x00
++#define JZ_REG_TIMER_ENABLE_SET		0x04
++#define JZ_REG_TIMER_ENABLE_CLEAR	0x08
++#define JZ_REG_TIMER_FLAG		0x10
++#define JZ_REG_TIMER_FLAG_SET		0x14
++#define JZ_REG_TIMER_FLAG_CLEAR		0x18
++#define JZ_REG_TIMER_MASK		0x20
++#define JZ_REG_TIMER_MASK_SET		0x24
++#define JZ_REG_TIMER_MASK_CLEAR		0x28
++
++#define JZ_REG_TIMER_DFR(x) (((x) * 0x10) + 0x30)
++#define JZ_REG_TIMER_DHR(x) (((x) * 0x10) + 0x34)
++#define JZ_REG_TIMER_CNT(x) (((x) * 0x10) + 0x38)
++#define JZ_REG_TIMER_CTRL(x) (((x) * 0x10) + 0x3C)
++
++#define JZ_TIMER_IRQ_HALF(x) BIT((x) + 0x10)
++#define JZ_TIMER_IRQ_FULL(x) BIT(x)
++
++#define JZ_TIMER_CTRL_PWM_ABBRUPT_SHUTDOWN	BIT(9)
++#define JZ_TIMER_CTRL_PWM_ACTIVE_LOW		BIT(8)
++#define JZ_TIMER_CTRL_PWM_ENABLE		BIT(7)
++#define JZ_TIMER_CTRL_PRESCALE_MASK		0x1c
++#define JZ_TIMER_CTRL_PRESCALE_OFFSET		0x3
++#define JZ_TIMER_CTRL_PRESCALE_1		(0 << 3)
++#define JZ_TIMER_CTRL_PRESCALE_4		(1 << 3)
++#define JZ_TIMER_CTRL_PRESCALE_16		(2 << 3)
++#define JZ_TIMER_CTRL_PRESCALE_64		(3 << 3)
++#define JZ_TIMER_CTRL_PRESCALE_256		(4 << 3)
++#define JZ_TIMER_CTRL_PRESCALE_1024		(5 << 3)
++
++#define JZ_TIMER_CTRL_PRESCALER(x) ((x) << JZ_TIMER_CTRL_PRESCALE_OFFSET)
++
++#define JZ_TIMER_CTRL_SRC_EXT		BIT(2)
++#define JZ_TIMER_CTRL_SRC_RTC		BIT(1)
++#define JZ_TIMER_CTRL_SRC_PCLK		BIT(0)
++
++extern void __iomem *jz4740_timer_base;
++void __init jz4740_timer_init(void);
++
++static inline void jz4740_timer_stop(unsigned int timer)
++{
++	writel(BIT(timer), jz4740_timer_base + JZ_REG_TIMER_STOP_SET);
++}
++
++static inline void jz4740_timer_start(unsigned int timer)
++{
++	writel(BIT(timer), jz4740_timer_base + JZ_REG_TIMER_STOP_CLEAR);
++}
++
++static inline bool jz4740_timer_is_enabled(unsigned int timer)
++{
++	return readb(jz4740_timer_base + JZ_REG_TIMER_ENABLE) & BIT(timer);
++}
++
++static inline void jz4740_timer_enable(unsigned int timer)
++{
++	writeb(BIT(timer), jz4740_timer_base + JZ_REG_TIMER_ENABLE_SET);
++}
++
++static inline void jz4740_timer_disable(unsigned int timer)
++{
++	writeb(BIT(timer), jz4740_timer_base + JZ_REG_TIMER_ENABLE_CLEAR);
++}
++
++
++static inline void jz4740_timer_set_period(unsigned int timer, uint16_t period)
++{
++	writew(period, jz4740_timer_base + JZ_REG_TIMER_DFR(timer));
++}
++
++static inline void jz4740_timer_set_duty(unsigned int timer, uint16_t duty)
++{
++	writew(duty, jz4740_timer_base + JZ_REG_TIMER_DHR(timer));
++}
++
++static inline void jz4740_timer_set_count(unsigned int timer, uint16_t count)
++{
++	writew(count, jz4740_timer_base + JZ_REG_TIMER_CNT(timer));
++}
++
++static inline uint16_t jz4740_timer_get_count(unsigned int timer)
++{
++	return readw(jz4740_timer_base + JZ_REG_TIMER_CNT(timer));
++}
++
++static inline void jz4740_timer_ack_full(unsigned int timer)
++{
++	writel(JZ_TIMER_IRQ_FULL(timer), jz4740_timer_base + JZ_REG_TIMER_FLAG_CLEAR);
++}
++
++static inline void jz4740_timer_irq_full_enable(unsigned int timer)
++{
++	writel(JZ_TIMER_IRQ_FULL(timer), jz4740_timer_base + JZ_REG_TIMER_FLAG_CLEAR);
++	writel(JZ_TIMER_IRQ_FULL(timer), jz4740_timer_base + JZ_REG_TIMER_MASK_CLEAR);
++}
++
++static inline void jz4740_timer_irq_full_disable(unsigned int timer)
++{
++	writel(JZ_TIMER_IRQ_FULL(timer), jz4740_timer_base + JZ_REG_TIMER_MASK_SET);
++}
++
++static inline void jz4740_timer_set_ctrl(unsigned int timer, uint16_t ctrl)
++{
++	writew(ctrl, jz4740_timer_base + JZ_REG_TIMER_CTRL(timer));
++}
++
++static inline uint16_t jz4740_timer_get_ctrl(unsigned int timer)
++{
++	return readw(jz4740_timer_base + JZ_REG_TIMER_CTRL(timer));
++}
++
++#endif