ARM: shmobile: Add r8a73a4 CMT10 clock event

Add clock event support for CMT1 timer channel 0
to the r8a73a4 SoC code. The CMT is used together
with a 32KHz clock in this case.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/arch/arm/mach-shmobile/clock-r8a73a4.c b/arch/arm/mach-shmobile/clock-r8a73a4.c
index f831b3b..8ea5ef6 100644 (file)
--- a/arch/arm/mach-shmobile/clock-r8a73a4.c
+++ b/arch/arm/mach-shmobile/clock-r8a73a4.c
@@ -505,7 +505,7 @@ static struct clk div6_clks[DIV6_NR] = {
 /* MSTP */
 enum {
        MSTP217, MSTP216, MSTP207, MSTP206, MSTP204, MSTP203,
-       MSTP323, MSTP318, MSTP317, MSTP316,
+       MSTP329, MSTP323, MSTP318, MSTP317, MSTP316,
        MSTP315, MSTP314, MSTP313, MSTP312, MSTP305, MSTP300,
        MSTP411, MSTP410, MSTP409,
        MSTP522, MSTP515,
@@ -529,6 +529,7 @@ static struct clk mstp_clks[MSTP_NR] = {
        [MSTP317] = SH_CLK_MSTP32(&div4_clks[DIV4_HP],  SMSTPCR3, 17, 0), /* IIC7 */
        [MSTP318] = SH_CLK_MSTP32(&div4_clks[DIV4_HP],  SMSTPCR3, 18, 0), /* IIC0 */
        [MSTP323] = SH_CLK_MSTP32(&div4_clks[DIV4_HP],  SMSTPCR3, 23, 0), /* IIC1 */
+       [MSTP329] = SH_CLK_MSTP32(&extalr_clk, SMSTPCR3, 29, 0), /* CMT10 */
        [MSTP409] = SH_CLK_MSTP32(&main_div2_clk,       SMSTPCR4, 9, 0), /* IIC5 */
        [MSTP410] = SH_CLK_MSTP32(&div4_clks[DIV4_HP],  SMSTPCR4, 10, 0), /* IIC4 */
        [MSTP411] = SH_CLK_MSTP32(&div4_clks[DIV4_HP],  SMSTPCR4, 11, 0), /* IIC3 */
@@ -593,6 +594,7 @@ static struct clk_lookup lookups[] = {
        CLKDEV_DEV_ID("e6560000.i2c", &mstp_clks[MSTP317]),
        CLKDEV_DEV_ID("e6500000.i2c", &mstp_clks[MSTP318]),
        CLKDEV_DEV_ID("e6510000.i2c", &mstp_clks[MSTP323]),
+       CLKDEV_DEV_ID("sh_cmt.10", &mstp_clks[MSTP329]),
        CLKDEV_DEV_ID("e60b0000.i2c", &mstp_clks[MSTP409]),
        CLKDEV_DEV_ID("e6540000.i2c", &mstp_clks[MSTP410]),
        CLKDEV_DEV_ID("e6530000.i2c", &mstp_clks[MSTP411]),

diff --git a/arch/arm/mach-shmobile/setup-r8a73a4.c b/arch/arm/mach-shmobile/setup-r8a73a4.c
index 9c52096..b8dddf4 100644 (file)
--- a/arch/arm/mach-shmobile/setup-r8a73a4.c
+++ b/arch/arm/mach-shmobile/setup-r8a73a4.c
@@ -22,6 +22,7 @@
 #include <linux/of_platform.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/r8a73a4.h>
@@ -168,6 +169,25 @@ static const struct resource thermal0_resources[] = {
                                        thermal0_resources,             \
                                        ARRAY_SIZE(thermal0_resources))
 
+static struct sh_timer_config cmt10_platform_data = {
+       .name = "CMT10",
+       .timer_bit = 0,
+       .clockevent_rating = 80,
+};
+
+static struct resource cmt10_resources[] = {
+       DEFINE_RES_MEM(0xe6130010, 0x0c),
+       DEFINE_RES_MEM(0xe6130000, 0x04),
+       DEFINE_RES_IRQ(gic_spi(120)), /* CMT1_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 r8a73a4_add_standard_devices(void)
 {
        r8a73a4_register_scif(SCIFA0);
@@ -179,6 +199,7 @@ void __init r8a73a4_add_standard_devices(void)
        r8a73a4_register_irqc(0);
        r8a73a4_register_irqc(1);
        r8a73a4_register_thermal();
+       r8a7790_register_cmt(10);
 }
 
 #ifdef CONFIG_USE_OF