ARM: mach-shmobile: r8a7779: add SATA support

Add SATA clock for r8a7779 SoC (for both device tree and usual cases).
Register SATA controller as a "late" platform device on r8a7779 SoC.

Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

2 files changed, 30 insertions, 0 deletions

diff --git a/arch/arm/mach-shmobile/clock-r8a7779.c b/arch/arm/mach-shmobile/clock-r8a7779.c
index 1db36537255c..0f66d356e1bc 100644
--- a/arch/arm/mach-shmobile/clock-r8a7779.c
+++ b/arch/arm/mach-shmobile/clock-r8a7779.c
@@ -87,6 +87,7 @@ static struct clk div4_clks[DIV4_NR] = {
 };
 
 enum { MSTP323, MSTP322, MSTP321, MSTP320,
+        MSTP115,
         MSTP101, MSTP100,
         MSTP030,
         MSTP029, MSTP028, MSTP027, MSTP026, MSTP025, MSTP024, MSTP023, MSTP022, MSTP021,
@@ -99,6 +100,7 @@ static struct clk mstp_clks[MSTP_NR] = {
         [MSTP322] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR3, 22, 0), /* SDHI1 */
         [MSTP321] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR3, 21, 0), /* SDHI2 */
         [MSTP320] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR3, 20, 0), /* SDHI3 */
+        [MSTP115] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR1, 15, 0), /* SATA */
         [MSTP101] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR1,  1, 0), /* USB2 */
         [MSTP100] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR1,  0, 0), /* USB0/1 */
         [MSTP030] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR0, 30, 0), /* I2C0 */
@@ -156,6 +158,8 @@ static struct clk_lookup lookups[] = {
         CLKDEV_CON_ID("peripheral_clk", &div4_clks[DIV4_P]),
 
         /* MSTP32 clocks */
+        CLKDEV_DEV_ID("sata_rcar", &mstp_clks[MSTP115]), /* SATA */
+        CLKDEV_DEV_ID("fc600000.sata", &mstp_clks[MSTP115]), /* SATA w/DT */
         CLKDEV_DEV_ID("ehci-platform.1", &mstp_clks[MSTP101]), /* USB EHCI port2 */
         CLKDEV_DEV_ID("ohci-platform.1", &mstp_clks[MSTP101]), /* USB OHCI port2 */
         CLKDEV_DEV_ID("ehci-platform.0", &mstp_clks[MSTP100]), /* USB EHCI port0/1 */
diff --git a/arch/arm/mach-shmobile/setup-r8a7779.c b/arch/arm/mach-shmobile/setup-r8a7779.c
index 0068b9f85bc0..10031fef074a 100644
--- a/arch/arm/mach-shmobile/setup-r8a7779.c
+++ b/arch/arm/mach-shmobile/setup-r8a7779.c
@@ -29,6 +29,7 @@
 #include <linux/serial_sci.h>
 #include <linux/sh_intc.h>
 #include <linux/sh_timer.h>
+#include <linux/dma-mapping.h>
 #include <mach/hardware.h>
 #include <mach/irqs.h>
 #include <mach/r8a7779.h>
@@ -322,6 +323,30 @@ static struct platform_device i2c3_device = {
         .num_resources  = ARRAY_SIZE(rcar_i2c3_res),
 };
 
+static struct resource sata_resources[] = {
+        [0] = {
+                .name   = "rcar-sata",
+                .start  = 0xfc600000,
+                .end    = 0xfc601fff,
+                .flags  = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start  = gic_spi(100),
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static struct platform_device sata_device = {
+        .name           = "sata_rcar",
+        .id             = -1,
+        .resource       = sata_resources,
+        .num_resources  = ARRAY_SIZE(sata_resources),
+        .dev            = {
+                .dma_mask               = &sata_device.dev.coherent_dma_mask,
+                .coherent_dma_mask      = DMA_BIT_MASK(32),
+        },
+};
+
 static struct platform_device *r8a7779_devices_dt[] __initdata = {
         &scif0_device,
         &scif1_device,
@@ -338,6 +363,7 @@ static struct platform_device *r8a7779_late_devices[] __initdata = {
         &i2c1_device,
         &i2c2_device,
         &i2c3_device,
+        &sata_device,
 };
 
 void __init r8a7779_add_standard_devices(void)