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| author | Magnus Damm <damm@opensource.se> | 2013-06-28 20:27:04 +0900 |
|---|---|---|
| committer | Simon Horman <horms+renesas@verge.net.au> | 2013-07-17 14:26:49 +0900 |
| commit | 99ade1a0f02e086248874d9908def3e8e4539418 (patch) | |
| tree | a3e1dd561b672543ec3a5cabdc87904d676734dc | |
| parent | 29eb2ba89c63c6f57dc3a8b1a89241c7a877a3c8 (diff) | |
| download | kernel_goldelico_gta04-99ade1a0f02e086248874d9908def3e8e4539418.zip kernel_goldelico_gta04-99ade1a0f02e086248874d9908def3e8e4539418.tar.gz kernel_goldelico_gta04-99ade1a0f02e086248874d9908def3e8e4539418.tar.bz2 | |
ARM: shmobile: Add r8a7790 CMT00 clock event
Add clock event support for CMT0 timer channel 0
to the r8a7790 SoC code. On most ARM mach-shmobile
the CMT is hooked up to a 32KHz clock but on r8a7790
a 31.7KHz clock is instead used.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
| -rw-r--r-- | arch/arm/mach-shmobile/clock-r8a7790.c | 4 | ||||
| -rw-r--r-- | arch/arm/mach-shmobile/setup-r8a7790.c | 23 |
2 files changed, 26 insertions, 1 deletions
diff --git a/arch/arm/mach-shmobile/clock-r8a7790.c b/arch/arm/mach-shmobile/clock-r8a7790.c index 10d99b3..62d8162 100644 --- a/arch/arm/mach-shmobile/clock-r8a7790.c +++ b/arch/arm/mach-shmobile/clock-r8a7790.c @@ -47,6 +47,7 @@ #define CPG_BASE 0xe6150000 #define CPG_LEN 0x1000 +#define SMSTPCR1 0xe6150134 #define SMSTPCR2 0xe6150138 #define SMSTPCR3 0xe615013c #define SMSTPCR5 0xe6150144 @@ -186,6 +187,7 @@ enum { MSTP522, MSTP315, MSTP314, MSTP313, MSTP312, MSTP311, MSTP305, MSTP304, MSTP216, MSTP207, MSTP206, MSTP204, MSTP203, MSTP202, + MSTP124, MSTP_NR }; @@ -208,6 +210,7 @@ static struct clk mstp_clks[MSTP_NR] = { [MSTP204] = SH_CLK_MSTP32(&mp_clk, SMSTPCR2, 4, 0), /* SCIFA0 */ [MSTP203] = SH_CLK_MSTP32(&mp_clk, SMSTPCR2, 3, 0), /* SCIFA1 */ [MSTP202] = SH_CLK_MSTP32(&mp_clk, SMSTPCR2, 2, 0), /* SCIFA2 */ + [MSTP124] = SH_CLK_MSTP32(&rclk_clk, SMSTPCR1, 24, 0), /* CMT0 */ }; static struct clk_lookup lookups[] = { @@ -270,6 +273,7 @@ static struct clk_lookup lookups[] = { CLKDEV_DEV_ID("sh_mobile_sdhi.3", &mstp_clks[MSTP311]), CLKDEV_DEV_ID("ee220000.mmcif", &mstp_clks[MSTP305]), CLKDEV_DEV_ID("sh_mmcif.1", &mstp_clks[MSTP305]), + CLKDEV_DEV_ID("sh_cmt.0", &mstp_clks[MSTP124]), }; #define R8A7790_CLOCK_ROOT(e, m, p0, p1, p30, p31) \ diff --git a/arch/arm/mach-shmobile/setup-r8a7790.c b/arch/arm/mach-shmobile/setup-r8a7790.c index bc40a44..ece60c6 100644 --- a/arch/arm/mach-shmobile/setup-r8a7790.c +++ b/arch/arm/mach-shmobile/setup-r8a7790.c @@ -21,9 +21,10 @@ #include <linux/irq.h> #include <linux/kernel.h> #include <linux/of_platform.h> -#include <linux/serial_sci.h> #include <linux/platform_data/gpio-rcar.h> #include <linux/platform_data/irq-renesas-irqc.h> +#include <linux/serial_sci.h> +#include <linux/sh_timer.h> #include <mach/common.h> #include <mach/irqs.h> #include <mach/r8a7790.h> @@ -159,6 +160,25 @@ static struct resource thermal_resources[] __initdata = { thermal_resources, \ ARRAY_SIZE(thermal_resources)) +static struct sh_timer_config cmt00_platform_data = { + .name = "CMT00", + .timer_bit = 0, + .clockevent_rating = 80, +}; + +static struct resource cmt00_resources[] = { + DEFINE_RES_MEM(0xffca0510, 0x0c), + DEFINE_RES_MEM(0xffca0500, 0x04), + DEFINE_RES_IRQ(gic_spi(142)), /* CMT0_0 */ +}; + +#define r8a7790_register_cmt(idx) \ + platform_device_register_resndata(&platform_bus, "sh_cmt", \ + idx, cmt##idx##_resources, \ + ARRAY_SIZE(cmt##idx##_resources), \ + &cmt##idx##_platform_data, \ + sizeof(struct sh_timer_config)) + void __init r8a7790_add_standard_devices(void) { r8a7790_register_scif(SCIFA0); @@ -173,6 +193,7 @@ void __init r8a7790_add_standard_devices(void) r8a7790_register_scif(HSCIF1); r8a7790_register_irqc(0); r8a7790_register_thermal(); + r8a7790_register_cmt(00); } void __init r8a7790_timer_init(void) |