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author | John Crispin <john@openwrt.org> | 2012-05-27 16:12:59 +0000 |
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committer | John Crispin <john@openwrt.org> | 2012-05-27 16:12:59 +0000 |
commit | 800277052019b54e9a5669d086a4e96bf2dcbe75 (patch) | |
tree | 57a5594d93d1a6ff1cc4d897f7bc3551e8af6128 /target/linux/lantiq/patches-3.2/0026-MIPS-lantiq-convert-falcon-to-clkdev-api.patch | |
parent | 81ddc886e172dae27ae9f15721d2ee34fc00d890 (diff) | |
download | mtk-20170518-800277052019b54e9a5669d086a4e96bf2dcbe75.zip mtk-20170518-800277052019b54e9a5669d086a4e96bf2dcbe75.tar.gz mtk-20170518-800277052019b54e9a5669d086a4e96bf2dcbe75.tar.bz2 |
3.2 R.I.P.
SVN-Revision: 31911
Diffstat (limited to 'target/linux/lantiq/patches-3.2/0026-MIPS-lantiq-convert-falcon-to-clkdev-api.patch')
-rw-r--r-- | target/linux/lantiq/patches-3.2/0026-MIPS-lantiq-convert-falcon-to-clkdev-api.patch | 235 |
1 files changed, 0 insertions, 235 deletions
diff --git a/target/linux/lantiq/patches-3.2/0026-MIPS-lantiq-convert-falcon-to-clkdev-api.patch b/target/linux/lantiq/patches-3.2/0026-MIPS-lantiq-convert-falcon-to-clkdev-api.patch deleted file mode 100644 index 6d4e6f4..0000000 --- a/target/linux/lantiq/patches-3.2/0026-MIPS-lantiq-convert-falcon-to-clkdev-api.patch +++ /dev/null @@ -1,235 +0,0 @@ -From 3a20e2b3471baf86765747b0e194400d3d74b6d8 Mon Sep 17 00:00:00 2001 -From: John Crispin <blogic@openwrt.org> -Date: Thu, 8 Mar 2012 11:19:11 +0100 -Subject: [PATCH 26/73] MIPS: lantiq: convert falcon to clkdev api - -Unify sysctrl/clock code and add clkdev hooks to sysctrl.c - -Signed-off-by: John Crispin <blogic@openwrt.org> ---- - .../include/asm/mach-lantiq/falcon/lantiq_soc.h | 8 +- - arch/mips/lantiq/falcon/Makefile | 2 +- - arch/mips/lantiq/falcon/sysctrl.c | 129 ++++++++++++-------- - 3 files changed, 80 insertions(+), 59 deletions(-) - ---- a/arch/mips/include/asm/mach-lantiq/falcon/lantiq_soc.h -+++ b/arch/mips/include/asm/mach-lantiq/falcon/lantiq_soc.h -@@ -95,6 +95,7 @@ - - /* Activation Status Register */ - #define ACTS_ASC1_ACT 0x00000800 -+#define ACTS_I2C_ACT 0x00004000 - #define ACTS_P0 0x00010000 - #define ACTS_P1 0x00010000 - #define ACTS_P2 0x00020000 -@@ -106,13 +107,6 @@ - #define ACTS_PADCTRL3 0x00200000 - #define ACTS_PADCTRL4 0x00400000 - --extern void ltq_sysctl_activate(int module, unsigned int mask); --extern void ltq_sysctl_deactivate(int module, unsigned int mask); --extern void ltq_sysctl_clken(int module, unsigned int mask); --extern void ltq_sysctl_clkdis(int module, unsigned int mask); --extern void ltq_sysctl_reboot(int module, unsigned int mask); --extern int ltq_gpe_is_activated(unsigned int mask); -- - /* global register ranges */ - extern __iomem void *ltq_ebu_membase; - extern __iomem void *ltq_sys1_membase; ---- a/arch/mips/lantiq/falcon/Makefile -+++ b/arch/mips/lantiq/falcon/Makefile -@@ -1,2 +1,2 @@ --obj-y := clk.o prom.o reset.o sysctrl.o devices.o gpio.o -+obj-y := prom.o reset.o sysctrl.o devices.o gpio.o - obj-$(CONFIG_LANTIQ_MACH_EASY98000) += mach-easy98000.o ---- a/arch/mips/lantiq/falcon/sysctrl.c -+++ b/arch/mips/lantiq/falcon/sysctrl.c -@@ -9,11 +9,13 @@ - - #include <linux/ioport.h> - #include <linux/export.h> -+#include <linux/clkdev.h> - #include <asm/delay.h> - - #include <lantiq_soc.h> - - #include "devices.h" -+#include "../clk.h" - - /* infrastructure control register */ - #define SYS1_INFRAC 0x00bc -@@ -38,6 +40,10 @@ - #define LTQ_SYSCTL_DEACT 0x0028 - /* reboot Register */ - #define LTQ_SYSCTL_RBT 0x002c -+/* CPU0 Clock Control Register */ -+#define LTQ_SYS1_CPU0CC 0x0040 -+/* clock divider bit */ -+#define LTQ_CPU0CC_CPUDIV 0x0001 - - static struct resource ltq_sysctl_res[] = { - MEM_RES("sys1", LTQ_SYS1_BASE_ADDR, LTQ_SYS1_SIZE), -@@ -64,79 +70,67 @@ void __iomem *ltq_ebu_membase; - #define ltq_status_r32(x) ltq_r32(ltq_status_membase + (x)) - - static inline void --ltq_sysctl_wait(int module, unsigned int mask, -+ltq_sysctl_wait(struct clk *clk, - unsigned int test, unsigned int reg) - { - int err = 1000000; - -- do {} while (--err && ((ltq_reg_r32(module, reg) -- & mask) != test)); -+ do {} while (--err && ((ltq_reg_r32(clk->module, reg) -+ & clk->bits) != test)); - if (!err) -- pr_err("module de/activation failed %d %08X %08X\n", -- module, mask, test); -+ pr_err("module de/activation failed %d %08X %08X %08X\n", -+ clk->module, clk->bits, test, -+ ltq_reg_r32(clk->module, reg) & clk->bits); - } - --void --ltq_sysctl_activate(int module, unsigned int mask) --{ -- if (module > SYSCTL_SYSGPE) -- return; -- -- ltq_reg_w32(module, mask, LTQ_SYSCTL_CLKEN); -- ltq_reg_w32(module, mask, LTQ_SYSCTL_ACT); -- ltq_sysctl_wait(module, mask, mask, LTQ_SYSCTL_ACTS); -+static int -+ltq_sysctl_activate(struct clk *clk) -+{ -+ ltq_reg_w32(clk->module, clk->bits, LTQ_SYSCTL_CLKEN); -+ ltq_reg_w32(clk->module, clk->bits, LTQ_SYSCTL_ACT); -+ ltq_sysctl_wait(clk, clk->bits, LTQ_SYSCTL_ACTS); -+ return 0; - } --EXPORT_SYMBOL(ltq_sysctl_activate); - --void --ltq_sysctl_deactivate(int module, unsigned int mask) -+static void -+ltq_sysctl_deactivate(struct clk *clk) - { -- if (module > SYSCTL_SYSGPE) -- return; -- -- ltq_reg_w32(module, mask, LTQ_SYSCTL_CLKCLR); -- ltq_reg_w32(module, mask, LTQ_SYSCTL_DEACT); -- ltq_sysctl_wait(module, mask, 0, LTQ_SYSCTL_ACTS); -+ ltq_reg_w32(clk->module, clk->bits, LTQ_SYSCTL_CLKCLR); -+ ltq_reg_w32(clk->module, clk->bits, LTQ_SYSCTL_DEACT); -+ ltq_sysctl_wait(clk, 0, LTQ_SYSCTL_ACTS); - } --EXPORT_SYMBOL(ltq_sysctl_deactivate); - --void --ltq_sysctl_clken(int module, unsigned int mask) -+static int -+ltq_sysctl_clken(struct clk *clk) - { -- if (module > SYSCTL_SYSGPE) -- return; -- -- ltq_reg_w32(module, mask, LTQ_SYSCTL_CLKEN); -- ltq_sysctl_wait(module, mask, mask, LTQ_SYSCTL_CLKS); -+ ltq_reg_w32(clk->module, clk->bits, LTQ_SYSCTL_CLKEN); -+ ltq_sysctl_wait(clk, clk->bits, LTQ_SYSCTL_CLKS); -+ return 0; - } --EXPORT_SYMBOL(ltq_sysctl_clken); - --void --ltq_sysctl_clkdis(int module, unsigned int mask) -+static void -+ltq_sysctl_clkdis(struct clk *clk) - { -- if (module > SYSCTL_SYSGPE) -- return; -- -- ltq_reg_w32(module, mask, LTQ_SYSCTL_CLKCLR); -- ltq_sysctl_wait(module, mask, 0, LTQ_SYSCTL_CLKS); -+ ltq_reg_w32(clk->module, clk->bits, LTQ_SYSCTL_CLKCLR); -+ ltq_sysctl_wait(clk, 0, LTQ_SYSCTL_CLKS); - } --EXPORT_SYMBOL(ltq_sysctl_clkdis); - --void --ltq_sysctl_reboot(int module, unsigned int mask) -+static void -+ltq_sysctl_reboot(struct clk *clk) - { - unsigned int act; -+ unsigned int bits; - -- if (module > SYSCTL_SYSGPE) -- return; -- -- act = ltq_reg_r32(module, LTQ_SYSCTL_ACT); -- if ((~act & mask) != 0) -- ltq_sysctl_activate(module, ~act & mask); -- ltq_reg_w32(module, act & mask, LTQ_SYSCTL_RBT); -- ltq_sysctl_wait(module, mask, mask, LTQ_SYSCTL_ACTS); -+ act = ltq_reg_r32(clk->module, LTQ_SYSCTL_ACT); -+ bits = ~act & clk->bits; -+ if (bits != 0) { -+ ltq_reg_w32(clk->module, bits, LTQ_SYSCTL_CLKEN); -+ ltq_reg_w32(clk->module, bits, LTQ_SYSCTL_ACT); -+ ltq_sysctl_wait(clk, bits, LTQ_SYSCTL_ACTS); -+ } -+ ltq_reg_w32(clk->module, act & clk->bits, LTQ_SYSCTL_RBT); -+ ltq_sysctl_wait(clk, clk->bits, LTQ_SYSCTL_ACTS); - } --EXPORT_SYMBOL(ltq_sysctl_reboot); - - /* enable the ONU core */ - static void -@@ -167,6 +161,24 @@ ltq_gpe_enable(void) - udelay(1); - } - -+static inline void -+clkdev_add_sys(const char *dev, unsigned int module, -+ unsigned int bits) -+{ -+ struct clk *clk = kzalloc(sizeof(struct clk), GFP_KERNEL); -+ -+ clk->cl.dev_id = dev; -+ clk->cl.con_id = NULL; -+ clk->cl.clk = clk; -+ clk->module = module; -+ clk->activate = ltq_sysctl_activate; -+ clk->deactivate = ltq_sysctl_deactivate; -+ clk->enable = ltq_sysctl_clken; -+ clk->disable = ltq_sysctl_clkdis; -+ clk->reboot = ltq_sysctl_reboot; -+ clkdev_add(&clk->cl); -+} -+ - void __init - ltq_soc_init(void) - { -@@ -180,4 +192,19 @@ ltq_soc_init(void) - ltq_ebu_membase = ltq_remap_resource(<q_ebu_res); - - ltq_gpe_enable(); -+ -+ /* get our 3 static rates for cpu, fpi and io clocks */ -+ if (ltq_sys1_r32(LTQ_SYS1_CPU0CC) & LTQ_CPU0CC_CPUDIV) -+ clkdev_add_static(CLOCK_200M, CLOCK_100M, CLOCK_200M); -+ else -+ clkdev_add_static(CLOCK_400M, CLOCK_100M, CLOCK_200M); -+ -+ /* add our clock domains */ -+ clkdev_add_sys("falcon_gpio.0", SYSCTL_SYSETH, ACTS_PADCTRL0 | ACTS_P0); -+ clkdev_add_sys("falcon_gpio.1", SYSCTL_SYS1, ACTS_PADCTRL1 | ACTS_P1); -+ clkdev_add_sys("falcon_gpio.2", SYSCTL_SYSETH, ACTS_PADCTRL2 | ACTS_P2); -+ clkdev_add_sys("falcon_gpio.3", SYSCTL_SYS1, ACTS_PADCTRL3 | ACTS_P3); -+ clkdev_add_sys("falcon_gpio.4", SYSCTL_SYS1, ACTS_PADCTRL4 | ACTS_P4); -+ clkdev_add_sys("ltq_asc.1", SYSCTL_SYS1, ACTS_ASC1_ACT); -+ clkdev_add_sys("falcon_i2c", SYSCTL_SYS1, ACTS_I2C_ACT); - } |