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authorJohn Crispin <john@openwrt.org>2012-08-03 08:53:02 +0000
committerJohn Crispin <john@openwrt.org>2012-08-03 08:53:02 +0000
commit060b161ca6f18e0e022da1483723ad2e9335bca7 (patch)
treedc652c26bed4d4b79395a6daafaa5da59000e940 /target/linux/lantiq/patches-3.3/0021-MIPS-lantiq-convert-to-clkdev-api.patch
parent162e272b4b2b770cd5eb97006bb4ff99b09bd8de (diff)
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cleanup patches
SVN-Revision: 32953
Diffstat (limited to 'target/linux/lantiq/patches-3.3/0021-MIPS-lantiq-convert-to-clkdev-api.patch')
-rw-r--r--target/linux/lantiq/patches-3.3/0021-MIPS-lantiq-convert-to-clkdev-api.patch285
1 files changed, 0 insertions, 285 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
deleted file mode 100644
index 48ceef206c..0000000000
--- a/target/linux/lantiq/patches-3.3/0021-MIPS-lantiq-convert-to-clkdev-api.patch
+++ /dev/null
@@ -1,285 +0,0 @@
-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(-)
-
---- 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
-
---- 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_d
- 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);
-
---- 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,
-- },
--};
-+struct clk *clk_get_cpu(void)
-+{
-+ return &cpu_clk_generic[0];
-+}
-+
-+struct clk *clk_get_fpi(void)
-+{
-+ return &cpu_clk_generic[1];
-+}
-
--void clk_init(void)
-+struct clk *clk_get_io(void)
- {
-- cpu_clk = cpu_clk_generic;
-- cpu_clk_cnt = ARRAY_SIZE(cpu_clk_generic);
-+ return &cpu_clk_generic[2];
- }
-
- static inline int clk_good(struct clk *clk)
-@@ -73,36 +70,49 @@ unsigned long clk_get_rate(struct clk *c
- }
- 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;
-
-- for (i = 0; i < cpu_clk_cnt; i++)
-- if (!strcmp(id, cpu_clk[i].name))
-- return &cpu_clk[i];
-- BUG();
-- return ERR_PTR(-ENOENT);
-+ if (clk->enable)
-+ return clk->enable(clk);
-+
-+ 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);
---- 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
---- 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';