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authorGabor Juhos <juhosg@openwrt.org>2012-12-20 14:51:17 +0000
committerGabor Juhos <juhosg@openwrt.org>2012-12-20 14:51:17 +0000
commita81fa112439474816177fe88d9092fb33234efd0 (patch)
tree532fbc803f01b2d654021ccc54a8b7fc90fd3c16 /target/linux/cns21xx/patches-3.7/004-arm-add-fa-time.patch
parent1d7ba088e66045333edcdd13f523aeee85a4a25f (diff)
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cns21xx: add support for 3.7
Signed-off-by: Gabor Juhos <juhosg@openwrt.org> SVN-Revision: 34801
Diffstat (limited to 'target/linux/cns21xx/patches-3.7/004-arm-add-fa-time.patch')
-rw-r--r--target/linux/cns21xx/patches-3.7/004-arm-add-fa-time.patch143
1 files changed, 143 insertions, 0 deletions
diff --git a/target/linux/cns21xx/patches-3.7/004-arm-add-fa-time.patch b/target/linux/cns21xx/patches-3.7/004-arm-add-fa-time.patch
new file mode 100644
index 0000000..460e7cb
--- /dev/null
+++ b/target/linux/cns21xx/patches-3.7/004-arm-add-fa-time.patch
@@ -0,0 +1,143 @@
+--- /dev/null
++++ b/arch/arm/plat-fa/include/plat/time.h
+@@ -0,0 +1,20 @@
++/*
++ * Copyright (c) 2010-2012 Gabor Juhos <juhosg@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.
++ */
++
++#ifndef _FA_TIME_H
++#define _FA_TIME_H
++
++#define FA_TIMER1 0
++#define FA_TIMER2 1
++#define FA_TIMER3 2
++
++int __init fa_timer_init(unsigned int mapbase, unsigned int irq,
++ unsigned int timer, unsigned int freq);
++
++#endif /* _FA_TIME_H */
+--- /dev/null
++++ b/arch/arm/plat-fa/time.c
+@@ -0,0 +1,97 @@
++/*
++ * Copyright (C) 2001-2006 Storlink, Corp.
++ * Copyright (C) 2008-2009 Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
++ * Copyright (c) 2010-2012 Gabor Juhos <juhosg@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.
++ */
++
++#include <linux/init.h>
++#include <linux/interrupt.h>
++#include <linux/irq.h>
++#include <linux/io.h>
++
++#include <asm/mach/time.h>
++#include <plat/time.h>
++
++/*
++ * Register definitions for the timers
++ */
++#define TIMER_COUNT(_base, _tmr) ((_base) + 0x00 + (_tmr) * 0x10)
++#define TIMER_LOAD(_base, _tmr) ((_base) + 0x04 + (_tmr) * 0x10)
++#define TIMER_MATCH1(_base, _tmr) ((_base) + 0x08 + (_tmr) * 0x10)
++#define TIMER_MATCH2(_base, _tmr) ((_base) + 0x0c + (_tmr) * 0x10)
++
++#define TIMER_CR(_base) ((_base) + 0x30)
++#define TIMER_STATUS(_base) ((_base) + 0x34)
++#define TIMER_MASK(_base) ((_base) + 0x38)
++
++#define TIMER_SIZE 0x3c
++
++#define TIMER_CR_ENABLE(x) (1 << ((x) * 3))
++#define TIMER_CR_CLOCK(x) (1 << ((x) * 3 + 1))
++#define TIMER_CR_INT(x) (1 << ((x) * 3 + 2))
++#define TIMER_CR_DOWN(x) (1 << ((x) * 3 + 9))
++
++#define TIMER_MASK_MATCH1(x) (1 << ((x) * 3))
++#define TIMER_MASK_MATCH2(x) (1 << ((x) * 3 + 1))
++#define TIMER_MASK_OF(x) (1 << ((x) * 3 + 2))
++
++#define TIMER_MASK_ALL 0x7ff
++
++/*
++ * IRQ handler for the timer
++ */
++static irqreturn_t fa_timer_interrupt(int irq, void *dev_id)
++{
++ timer_tick();
++ return IRQ_HANDLED;
++}
++
++static struct irqaction fa_timer_irq = {
++ .name = "Timer Tick",
++ .flags = IRQF_DISABLED | IRQF_TIMER,
++ .handler = fa_timer_interrupt,
++};
++
++int __init fa_timer_init(unsigned int mapbase, unsigned int irq,
++ unsigned int timer, unsigned int freq)
++{
++ void __iomem *base;
++
++ base = ioremap(mapbase, TIMER_SIZE);
++ if (!base)
++ return -ENOMEM;
++
++ /* disable timers, clear status and mask all interrupts */
++ __raw_writel(0, TIMER_CR(base));
++ __raw_writel(0, TIMER_STATUS(base));
++ __raw_writel(TIMER_MASK_ALL, TIMER_MASK(base));
++
++ /*
++ * Make irqs happen for the system timer
++ */
++ setup_irq(irq, &fa_timer_irq);
++
++ /* Setup the timer */
++ __raw_writel(freq / HZ, TIMER_COUNT(base, timer));
++ __raw_writel(freq / HZ, TIMER_LOAD(base, timer));
++ __raw_writel(0, TIMER_MATCH1(base, timer));
++ __raw_writel(0, TIMER_MATCH2(base, timer));
++
++ /* Enable interrupt and start the timer */
++ __raw_writel(TIMER_MASK_ALL & ~TIMER_MASK_OF(timer),
++ TIMER_MASK(base));
++
++ __raw_writel(TIMER_CR_ENABLE(timer) |
++ TIMER_CR_INT(timer) |
++ TIMER_CR_DOWN(timer),
++ TIMER_CR(base));
++
++ iounmap(base);
++
++ return 0;
++}
+--- a/arch/arm/plat-fa/Kconfig
++++ b/arch/arm/plat-fa/Kconfig
+@@ -1,3 +1,6 @@
+ if PLAT_FA
+
++config PLAT_FA_TIME
++ def_bool n
++
+ endif
+--- a/arch/arm/plat-fa/Makefile
++++ b/arch/arm/plat-fa/Makefile
+@@ -4,6 +4,8 @@
+
+ obj-y :=
+
++obj-$(CONFIG_PLAT_FA_TIME) += time.o
++
+ obj-m :=
+ obj-n :=
+ obj- :=