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-rw-r--r--target/linux/lantiq/patches-3.8/0017-MIPS-lantiq-adds-static-clock-for-PP32.patch219
1 files changed, 219 insertions, 0 deletions
diff --git a/target/linux/lantiq/patches-3.8/0017-MIPS-lantiq-adds-static-clock-for-PP32.patch b/target/linux/lantiq/patches-3.8/0017-MIPS-lantiq-adds-static-clock-for-PP32.patch
new file mode 100644
index 000000000..07ae757fa
--- /dev/null
+++ b/target/linux/lantiq/patches-3.8/0017-MIPS-lantiq-adds-static-clock-for-PP32.patch
@@ -0,0 +1,219 @@
+From 46a704b1b093f4053eceaf8e5f0ab54949afa532 Mon Sep 17 00:00:00 2001
+From: John Crispin <blogic@openwrt.org>
+Date: Sat, 19 Jan 2013 08:54:24 +0000
+Subject: [PATCH 17/40] MIPS: lantiq: adds static clock for PP32
+
+The Lantiq DSL SoCs have an internal networking processor. Add code to read
+the static clock rate.
+
+Signed-off-by: John Crispin <blogic@openwrt.org>
+Patchwork: http://patchwork.linux-mips.org/patch/4815/
+---
+ arch/mips/include/asm/mach-lantiq/lantiq.h | 1 +
+ arch/mips/lantiq/clk.c | 12 ++++++--
+ arch/mips/lantiq/clk.h | 7 ++++-
+ arch/mips/lantiq/falcon/sysctrl.c | 4 +--
+ arch/mips/lantiq/xway/clk.c | 43 ++++++++++++++++++++++++++++
+ arch/mips/lantiq/xway/sysctrl.c | 12 ++++----
+ 6 files changed, 69 insertions(+), 10 deletions(-)
+
+diff --git a/arch/mips/include/asm/mach-lantiq/lantiq.h b/arch/mips/include/asm/mach-lantiq/lantiq.h
+index 5e8a6e9..76be7a0 100644
+--- a/arch/mips/include/asm/mach-lantiq/lantiq.h
++++ b/arch/mips/include/asm/mach-lantiq/lantiq.h
+@@ -41,6 +41,7 @@ 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);
++extern struct clk *clk_get_ppe(void);
+
+ /* find out what bootsource we have */
+ extern unsigned char ltq_boot_select(void);
+diff --git a/arch/mips/lantiq/clk.c b/arch/mips/lantiq/clk.c
+index ce2f129..d903560 100644
+--- a/arch/mips/lantiq/clk.c
++++ b/arch/mips/lantiq/clk.c
+@@ -26,13 +26,15 @@
+ #include "prom.h"
+
+ /* lantiq socs have 3 static clocks */
+-static struct clk cpu_clk_generic[3];
++static struct clk cpu_clk_generic[4];
+
+-void clkdev_add_static(unsigned long cpu, unsigned long fpi, unsigned long io)
++void clkdev_add_static(unsigned long cpu, unsigned long fpi,
++ unsigned long io, unsigned long ppe)
+ {
+ cpu_clk_generic[0].rate = cpu;
+ cpu_clk_generic[1].rate = fpi;
+ cpu_clk_generic[2].rate = io;
++ cpu_clk_generic[3].rate = ppe;
+ }
+
+ struct clk *clk_get_cpu(void)
+@@ -51,6 +53,12 @@ struct clk *clk_get_io(void)
+ return &cpu_clk_generic[2];
+ }
+
++struct clk *clk_get_ppe(void)
++{
++ return &cpu_clk_generic[3];
++}
++EXPORT_SYMBOL_GPL(clk_get_ppe);
++
+ static inline int clk_good(struct clk *clk)
+ {
+ return clk && !IS_ERR(clk);
+diff --git a/arch/mips/lantiq/clk.h b/arch/mips/lantiq/clk.h
+index fa67060..77e4bdb 100644
+--- a/arch/mips/lantiq/clk.h
++++ b/arch/mips/lantiq/clk.h
+@@ -27,12 +27,15 @@
+ #define CLOCK_167M 166666667
+ #define CLOCK_196_608M 196608000
+ #define CLOCK_200M 200000000
++#define CLOCK_222M 222000000
++#define CLOCK_240M 240000000
+ #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_450M 450000000
+ #define CLOCK_500M 500000000
+ #define CLOCK_600M 600000000
+
+@@ -64,15 +67,17 @@ struct clk {
+ };
+
+ extern void clkdev_add_static(unsigned long cpu, unsigned long fpi,
+- unsigned long io);
++ unsigned long io, unsigned long ppe);
+
+ extern unsigned long ltq_danube_cpu_hz(void);
+ extern unsigned long ltq_danube_fpi_hz(void);
++extern unsigned long ltq_danube_pp32_hz(void);
+
+ extern unsigned long ltq_ar9_cpu_hz(void);
+ extern unsigned long ltq_ar9_fpi_hz(void);
+
+ extern unsigned long ltq_vr9_cpu_hz(void);
+ extern unsigned long ltq_vr9_fpi_hz(void);
++extern unsigned long ltq_vr9_pp32_hz(void);
+
+ #endif
+diff --git a/arch/mips/lantiq/falcon/sysctrl.c b/arch/mips/lantiq/falcon/sysctrl.c
+index 2d4ced3..ff4894a 100644
+--- a/arch/mips/lantiq/falcon/sysctrl.c
++++ b/arch/mips/lantiq/falcon/sysctrl.c
+@@ -241,9 +241,9 @@ void __init ltq_soc_init(void)
+
+ /* get our 3 static rates for cpu, fpi and io clocks */
+ if (ltq_sys1_r32(SYS1_CPU0CC) & CPU0CC_CPUDIV)
+- clkdev_add_static(CLOCK_200M, CLOCK_100M, CLOCK_200M);
++ clkdev_add_static(CLOCK_200M, CLOCK_100M, CLOCK_200M, 0);
+ else
+- clkdev_add_static(CLOCK_400M, CLOCK_100M, CLOCK_200M);
++ clkdev_add_static(CLOCK_400M, CLOCK_100M, CLOCK_200M, 0);
+
+ /* add our clock domains */
+ clkdev_add_sys("1d810000.gpio", SYSCTL_SYSETH, ACTS_P0);
+diff --git a/arch/mips/lantiq/xway/clk.c b/arch/mips/lantiq/xway/clk.c
+index 9aa17f7..1ab576d 100644
+--- a/arch/mips/lantiq/xway/clk.c
++++ b/arch/mips/lantiq/xway/clk.c
+@@ -53,6 +53,29 @@ unsigned long ltq_danube_cpu_hz(void)
+ }
+ }
+
++unsigned long ltq_danube_pp32_hz(void)
++{
++ unsigned int clksys = (ltq_cgu_r32(CGU_SYS) >> 7) & 3;
++ unsigned long clk;
++
++ switch (clksys) {
++ case 1:
++ clk = CLOCK_240M;
++ break;
++ case 2:
++ clk = CLOCK_222M;
++ break;
++ case 3:
++ clk = CLOCK_133M;
++ break;
++ default:
++ clk = CLOCK_266M;
++ break;
++ }
++
++ return clk;
++}
++
+ unsigned long ltq_ar9_sys_hz(void)
+ {
+ if (((ltq_cgu_r32(CGU_SYS) >> 3) & 0x3) == 0x2)
+@@ -149,3 +172,23 @@ unsigned long ltq_vr9_fpi_hz(void)
+
+ return clk;
+ }
++
++unsigned long ltq_vr9_pp32_hz(void)
++{
++ unsigned int clksys = (ltq_cgu_r32(CGU_SYS) >> 16) & 3;
++ unsigned long clk;
++
++ switch (clksys) {
++ case 1:
++ clk = CLOCK_450M;
++ break;
++ case 2:
++ clk = CLOCK_300M;
++ break;
++ default:
++ clk = CLOCK_500M;
++ break;
++ }
++
++ return clk;
++}
+diff --git a/arch/mips/lantiq/xway/sysctrl.c b/arch/mips/lantiq/xway/sysctrl.c
+index 1aaa726..3390fcd 100644
+--- a/arch/mips/lantiq/xway/sysctrl.c
++++ b/arch/mips/lantiq/xway/sysctrl.c
+@@ -356,14 +356,16 @@ void __init ltq_soc_init(void)
+
+ if (of_machine_is_compatible("lantiq,ase")) {
+ if (ltq_cgu_r32(CGU_SYS) & (1 << 5))
+- clkdev_add_static(CLOCK_266M, CLOCK_133M, CLOCK_133M);
++ clkdev_add_static(CLOCK_266M, CLOCK_133M,
++ CLOCK_133M, CLOCK_266M);
+ else
+- clkdev_add_static(CLOCK_133M, CLOCK_133M, CLOCK_133M);
++ clkdev_add_static(CLOCK_133M, CLOCK_133M,
++ CLOCK_133M, CLOCK_133M);
+ clkdev_add_cgu("1e180000.etop", "ephycgu", CGU_EPHY),
+ clkdev_add_pmu("1e180000.etop", "ephy", 0, PMU_EPHY);
+ } else if (of_machine_is_compatible("lantiq,vr9")) {
+ clkdev_add_static(ltq_vr9_cpu_hz(), ltq_vr9_fpi_hz(),
+- ltq_vr9_fpi_hz());
++ ltq_vr9_fpi_hz(), ltq_vr9_pp32_hz());
+ clkdev_add_pmu("1d900000.pcie", "phy", 1, PMU1_PCIE_PHY);
+ clkdev_add_pmu("1d900000.pcie", "bus", 0, PMU_PCIE_CLK);
+ clkdev_add_pmu("1d900000.pcie", "msi", 1, PMU1_PCIE_MSI);
+@@ -376,10 +378,10 @@ void __init ltq_soc_init(void)
+ PMU_PPE_QSB | PMU_PPE_TOP);
+ } else if (of_machine_is_compatible("lantiq,ar9")) {
+ clkdev_add_static(ltq_ar9_cpu_hz(), ltq_ar9_fpi_hz(),
+- ltq_ar9_fpi_hz());
++ ltq_ar9_fpi_hz(), CLOCK_250M);
+ clkdev_add_pmu("1e180000.etop", "switch", 0, PMU_SWITCH);
+ } else {
+ clkdev_add_static(ltq_danube_cpu_hz(), ltq_danube_fpi_hz(),
+- ltq_danube_fpi_hz());
++ ltq_danube_fpi_hz(), ltq_danube_pp32_hz());
+ }
+ }
+--
+1.7.10.4
+
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