[lantiq] adds 3.3 patches and files

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@31307 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 299 insertions, 0 deletions

diff --git a/target/linux/lantiq/patches-3.3/0021-MIPS-lantiq-convert-to-clkdev-api.patch b/target/linux/lantiq/patches-3.3/0021-MIPS-lantiq-convert-to-clkdev-api.patch
new file mode 100644
index 000000000..5ee11a2d3
--- /dev/null
+++ b/target/linux/lantiq/patches-3.3/0021-MIPS-lantiq-convert-to-clkdev-api.patch
@@ -0,0 +1,299 @@
+From 69f1bf02b0c6b132140326320d26aa4e91bc3290 Mon Sep 17 00:00:00 2001
+From: John Crispin <blogic@openwrt.org>
+Date: Thu, 8 Mar 2012 08:39:06 +0100
+Subject: [PATCH 21/70] MIPS: lantiq: convert to clkdev api
+
+* Change setup from HAVE_CLK -> HAVE_MACH_CLKDEV/CLKDEV_LOOKUP
+* Add clk_activate/clk_deactivate
+* Add better error paths to the clk_*() functions
+* Change the way our static clocks are referenced
+
+Signed-off-by: John Crispin <blogic@openwrt.org>
+---
+ arch/mips/Kconfig                          |    3 +-
+ arch/mips/include/asm/mach-lantiq/lantiq.h |   20 ++----
+ arch/mips/lantiq/clk.c                     |   96 +++++++++++++++------------
+ arch/mips/lantiq/clk.h                     |   52 ++++++++++++++-
+ arch/mips/lantiq/prom.c                    |    1 -
+ 5 files changed, 111 insertions(+), 61 deletions(-)
+
+diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
+index 8ad52f4..df4e125 100644
+--- a/arch/mips/Kconfig
++++ b/arch/mips/Kconfig
+@@ -228,7 +228,8 @@ config LANTIQ
+ 	select ARCH_REQUIRE_GPIOLIB
+ 	select SWAP_IO_SPACE
+ 	select BOOT_RAW
+-	select HAVE_CLK
++	select HAVE_MACH_CLKDEV
++	select CLKDEV_LOOKUP
+ 	select HAVE_OPROFILE
+ 	select MIPS_MACHINE
+ 
+diff --git a/arch/mips/include/asm/mach-lantiq/lantiq.h b/arch/mips/include/asm/mach-lantiq/lantiq.h
+index 924b91a..622847f 100644
+--- a/arch/mips/include/asm/mach-lantiq/lantiq.h
++++ b/arch/mips/include/asm/mach-lantiq/lantiq.h
+@@ -9,6 +9,7 @@
+ #define _LANTIQ_H__
+ 
+ #include <linux/irq.h>
++#include <linux/clk.h>
+ #include <linux/ioport.h>
+ 
+ /* generic reg access functions */
+@@ -22,18 +23,6 @@
+ extern unsigned int ltq_get_cpu_ver(void);
+ extern unsigned int ltq_get_soc_type(void);
+ 
+-/* clock speeds */
+-#define CLOCK_60M	60000000
+-#define CLOCK_83M	83333333
+-#define CLOCK_100M	100000000
+-#define CLOCK_111M	111111111
+-#define CLOCK_133M	133333333
+-#define CLOCK_167M	166666667
+-#define CLOCK_200M	200000000
+-#define CLOCK_266M	266666666
+-#define CLOCK_333M	333333333
+-#define CLOCK_400M	400000000
+-
+ /* spinlock all ebu i/o */
+ extern spinlock_t ebu_lock;
+ 
+@@ -46,6 +35,13 @@ extern void ltq_disable_irq(struct irq_data *data);
+ extern void ltq_mask_and_ack_irq(struct irq_data *data);
+ extern void ltq_enable_irq(struct irq_data *data);
+ 
++/* clock handling */
++extern int clk_activate(struct clk *clk);
++extern void clk_deactivate(struct clk *clk);
++extern struct clk *clk_get_cpu(void);
++extern struct clk *clk_get_fpi(void);
++extern struct clk *clk_get_io(void);
++
+ /* find out what caused the last cpu reset */
+ extern int ltq_reset_cause(void);
+ 
+diff --git a/arch/mips/lantiq/clk.c b/arch/mips/lantiq/clk.c
+index 39eef7f..84a201e 100644
+--- a/arch/mips/lantiq/clk.c
++++ b/arch/mips/lantiq/clk.c
+@@ -12,6 +12,7 @@
+ #include <linux/kernel.h>
+ #include <linux/types.h>
+ #include <linux/clk.h>
++#include <linux/clkdev.h>
+ #include <linux/err.h>
+ #include <linux/list.h>
+ 
+@@ -24,33 +25,29 @@
+ #include "clk.h"
+ #include "prom.h"
+ 
+-struct clk {
+-	const char *name;
+-	unsigned long rate;
+-	unsigned long (*get_rate) (void);
+-};
++/* lantiq socs have 3 static clocks */
++static struct clk cpu_clk_generic[3];
+ 
+-static struct clk *cpu_clk;
+-static int cpu_clk_cnt;
++void clkdev_add_static(unsigned long cpu, unsigned long fpi, unsigned long io)
++{
++	cpu_clk_generic[0].rate = cpu;
++	cpu_clk_generic[1].rate = fpi;
++	cpu_clk_generic[2].rate = io;
++}
+ 
+-/* lantiq socs have 3 static clocks */
+-static struct clk cpu_clk_generic[] = {
+-	{
+-		.name = "cpu",
+-		.get_rate = ltq_get_cpu_hz,
+-	}, {
+-		.name = "fpi",
+-		.get_rate = ltq_get_fpi_hz,
+-	}, {
+-		.name = "io",
+-		.get_rate = ltq_get_io_region_clock,
+-	},
+-};
+-
+-void clk_init(void)
++struct clk *clk_get_cpu(void)
++{
++	return &cpu_clk_generic[0];
++}
++
++struct clk *clk_get_fpi(void)
+ {
+-	cpu_clk = cpu_clk_generic;
+-	cpu_clk_cnt = ARRAY_SIZE(cpu_clk_generic);
++	return &cpu_clk_generic[1];
++}
++
++struct clk *clk_get_io(void)
++{
++	return &cpu_clk_generic[2];
+ }
+ 
+ static inline int clk_good(struct clk *clk)
+@@ -73,36 +70,49 @@ unsigned long clk_get_rate(struct clk *clk)
+ }
+ EXPORT_SYMBOL(clk_get_rate);
+ 
+-struct clk *clk_get(struct device *dev, const char *id)
++int clk_enable(struct clk *clk)
+ {
+-	int i;
++	if (unlikely(!clk_good(clk)))
++		return -1;
++
++	if (clk->enable)
++		return clk->enable(clk);
+ 
+-	for (i = 0; i < cpu_clk_cnt; i++)
+-		if (!strcmp(id, cpu_clk[i].name))
+-			return &cpu_clk[i];
+-	BUG();
+-	return ERR_PTR(-ENOENT);
++	return -1;
+ }
+-EXPORT_SYMBOL(clk_get);
++EXPORT_SYMBOL(clk_enable);
+ 
+-void clk_put(struct clk *clk)
++void clk_disable(struct clk *clk)
+ {
+-	/* not used */
++	if (unlikely(!clk_good(clk)))
++		return;
++
++	if (clk->disable)
++		clk->disable(clk);
+ }
+-EXPORT_SYMBOL(clk_put);
++EXPORT_SYMBOL(clk_disable);
+ 
+-int clk_enable(struct clk *clk)
++int clk_activate(struct clk *clk)
+ {
+-	/* not used */
+-	return 0;
++	if (unlikely(!clk_good(clk)))
++		return -1;
++
++	if (clk->activate)
++		return clk->activate(clk);
++
++	return -1;
+ }
+-EXPORT_SYMBOL(clk_enable);
++EXPORT_SYMBOL(clk_activate);
+ 
+-void clk_disable(struct clk *clk)
++void clk_deactivate(struct clk *clk)
+ {
+-	/* not used */
++	if (unlikely(!clk_good(clk)))
++		return;
++
++	if (clk->deactivate)
++		clk->deactivate(clk);
+ }
+-EXPORT_SYMBOL(clk_disable);
++EXPORT_SYMBOL(clk_deactivate);
+ 
+ static inline u32 ltq_get_counter_resolution(void)
+ {
+@@ -126,7 +136,7 @@ void __init plat_time_init(void)
+ 
+ 	ltq_soc_init();
+ 
+-	clk = clk_get(0, "cpu");
++	clk = clk_get_cpu();
+ 	mips_hpt_frequency = clk_get_rate(clk) / ltq_get_counter_resolution();
+ 	write_c0_compare(read_c0_count());
+ 	pr_info("CPU Clock: %ldMHz\n", clk_get_rate(clk) / 1000000);
+diff --git a/arch/mips/lantiq/clk.h b/arch/mips/lantiq/clk.h
+index 3328925..d047768 100644
+--- a/arch/mips/lantiq/clk.h
++++ b/arch/mips/lantiq/clk.h
+@@ -9,10 +9,54 @@
+ #ifndef _LTQ_CLK_H__
+ #define _LTQ_CLK_H__
+ 
+-extern void clk_init(void);
++#include <linux/clkdev.h>
+ 
+-extern unsigned long ltq_get_cpu_hz(void);
+-extern unsigned long ltq_get_fpi_hz(void);
+-extern unsigned long ltq_get_io_region_clock(void);
++/* clock speeds */
++#define CLOCK_60M	60000000
++#define CLOCK_62_5M	62500000
++#define CLOCK_83M	83333333
++#define CLOCK_83_5M	83500000
++#define CLOCK_98_304M	98304000
++#define CLOCK_100M	100000000
++#define CLOCK_111M	111111111
++#define CLOCK_125M	125000000
++#define CLOCK_133M	133333333
++#define CLOCK_150M	150000000
++#define CLOCK_166M	166666666
++#define CLOCK_167M	166666667
++#define CLOCK_196_608M	196608000
++#define CLOCK_200M	200000000
++#define CLOCK_250M	250000000
++#define CLOCK_266M	266666666
++#define CLOCK_300M	300000000
++#define CLOCK_333M	333333333
++#define CLOCK_393M	393215332
++#define CLOCK_400M	400000000
++#define CLOCK_500M	500000000
++#define CLOCK_600M	600000000
++
++struct clk {
++	struct clk_lookup cl;
++	unsigned long rate;
++	unsigned long (*get_rate) (void);
++	unsigned int module;
++	unsigned int bits;
++	int (*enable) (struct clk *clk);
++	void (*disable) (struct clk *clk);
++	int (*activate) (struct clk *clk);
++	void (*deactivate) (struct clk *clk);
++	void (*reboot) (struct clk *clk);
++};
++
++extern void clkdev_add_static(unsigned long cpu, unsigned long fpi,
++					unsigned long io);
++
++extern unsigned long ltq_danube_cpu_hz(void);
++extern unsigned long ltq_danube_fpi_hz(void);
++extern unsigned long ltq_danube_io_region_clock(void);
++
++extern unsigned long ltq_vr9_cpu_hz(void);
++extern unsigned long ltq_vr9_fpi_hz(void);
++extern unsigned long ltq_vr9_io_region_clock(void);
+ 
+ #endif
+diff --git a/arch/mips/lantiq/prom.c b/arch/mips/lantiq/prom.c
+index acb8921..971554b 100644
+--- a/arch/mips/lantiq/prom.c
++++ b/arch/mips/lantiq/prom.c
+@@ -103,7 +103,6 @@ EXPORT_SYMBOL(ltq_remap_resource);
+ void __init prom_init(void)
+ {
+ 	ltq_soc_detect(&soc_info);
+-	clk_init();
+ 	snprintf(soc_info.sys_type, LTQ_SYS_TYPE_LEN - 1, "%s rev %s",
+ 		soc_info.name, soc_info.rev_type);
+ 	soc_info.sys_type[LTQ_SYS_TYPE_LEN - 1] = '\0';
+-- 
+1.7.9.1
+