ARM: davinci: da8xx: add DA850 PRUSS support

Adds PRUSS clock support and registration helper for the
uio_pruss device.

Signed-off-by: Matt Porter <mporter@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>

3 files changed, 80 insertions, 0 deletions

diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c
index 41d2cabbcf33..68c5fe01857c 100644
--- a/arch/arm/mach-davinci/da850.c
+++ b/arch/arm/mach-davinci/da850.c
@@ -212,6 +212,12 @@ static struct clk tptc2_clk = {
         .flags          = ALWAYS_ENABLED,
 };
 
+static struct clk pruss_clk = {
+        .name           = "pruss",
+        .parent         = &pll0_sysclk2,
+        .lpsc           = DA8XX_LPSC0_PRUSS,
+};
+
 static struct clk uart0_clk = {
         .name           = "uart0",
         .parent         = &pll0_sysclk2,
@@ -385,6 +391,7 @@ static struct clk_lookup da850_clks[] = {
         CLK(NULL,               "tptc1",        &tptc1_clk),
         CLK(NULL,               "tpcc1",        &tpcc1_clk),
         CLK(NULL,               "tptc2",        &tptc2_clk),
+        CLK("pruss_uio",        "pruss",        &pruss_clk),
         CLK(NULL,               "uart0",        &uart0_clk),
         CLK(NULL,               "uart1",        &uart1_clk),
         CLK(NULL,               "uart2",        &uart2_clk),
diff --git a/arch/arm/mach-davinci/devices-da8xx.c b/arch/arm/mach-davinci/devices-da8xx.c
index d53612f12c52..46c9a0c09ae5 100644
--- a/arch/arm/mach-davinci/devices-da8xx.c
+++ b/arch/arm/mach-davinci/devices-da8xx.c
@@ -22,6 +22,7 @@
 #include <mach/time.h>
 #include <mach/da8xx.h>
 #include <mach/cpuidle.h>
+#include <mach/sram.h>
 
 #include "clock.h"
 #include "asp.h"
@@ -32,6 +33,7 @@
 #define DA8XX_WDOG_BASE                 0x01c21000 /* DA8XX_TIMER64P1_BASE */
 #define DA8XX_I2C0_BASE                 0x01c22000
 #define DA8XX_RTC_BASE                  0x01c23000
+#define DA8XX_PRUSS_MEM_BASE            0x01c30000
 #define DA8XX_MMCSD0_BASE               0x01c40000
 #define DA8XX_SPI0_BASE                 0x01c41000
 #define DA830_SPI1_BASE                 0x01e12000
@@ -518,6 +520,75 @@ void __init da8xx_register_mcasp(int id, struct snd_platform_data *pdata)
         }
 }
 
+static struct resource da8xx_pruss_resources[] = {
+        {
+                .start  = DA8XX_PRUSS_MEM_BASE,
+                .end    = DA8XX_PRUSS_MEM_BASE + 0xFFFF,
+                .flags  = IORESOURCE_MEM,
+        },
+        {
+                .start  = IRQ_DA8XX_EVTOUT0,
+                .end    = IRQ_DA8XX_EVTOUT0,
+                .flags  = IORESOURCE_IRQ,
+        },
+        {
+                .start  = IRQ_DA8XX_EVTOUT1,
+                .end    = IRQ_DA8XX_EVTOUT1,
+                .flags  = IORESOURCE_IRQ,
+        },
+        {
+                .start  = IRQ_DA8XX_EVTOUT2,
+                .end    = IRQ_DA8XX_EVTOUT2,
+                .flags  = IORESOURCE_IRQ,
+        },
+        {
+                .start  = IRQ_DA8XX_EVTOUT3,
+                .end    = IRQ_DA8XX_EVTOUT3,
+                .flags  = IORESOURCE_IRQ,
+        },
+        {
+                .start  = IRQ_DA8XX_EVTOUT4,
+                .end    = IRQ_DA8XX_EVTOUT4,
+                .flags  = IORESOURCE_IRQ,
+        },
+        {
+                .start  = IRQ_DA8XX_EVTOUT5,
+                .end    = IRQ_DA8XX_EVTOUT5,
+                .flags  = IORESOURCE_IRQ,
+        },
+        {
+                .start  = IRQ_DA8XX_EVTOUT6,
+                .end    = IRQ_DA8XX_EVTOUT6,
+                .flags  = IORESOURCE_IRQ,
+        },
+        {
+                .start  = IRQ_DA8XX_EVTOUT7,
+                .end    = IRQ_DA8XX_EVTOUT7,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static struct uio_pruss_pdata da8xx_uio_pruss_pdata = {
+        .pintc_base     = 0x4000,
+};
+
+static struct platform_device da8xx_uio_pruss_dev = {
+        .name           = "pruss_uio",
+        .id             = -1,
+        .num_resources  = ARRAY_SIZE(da8xx_pruss_resources),
+        .resource       = da8xx_pruss_resources,
+        .dev            = {
+                .coherent_dma_mask      = DMA_BIT_MASK(32),
+                .platform_data          = &da8xx_uio_pruss_pdata,
+        }
+};
+
+int __init da8xx_register_uio_pruss(void)
+{
+        da8xx_uio_pruss_pdata.sram_pool = sram_get_gen_pool();
+        return platform_device_register(&da8xx_uio_pruss_dev);
+}
+
 static const struct display_panel disp_panel = {
         QVGA,
         16,
diff --git a/arch/arm/mach-davinci/include/mach/da8xx.h b/arch/arm/mach-davinci/include/mach/da8xx.h
index 97bc7006bfc6..700d311c6854 100644
--- a/arch/arm/mach-davinci/include/mach/da8xx.h
+++ b/arch/arm/mach-davinci/include/mach/da8xx.h
@@ -26,6 +26,7 @@
 #include <linux/platform_data/mmc-davinci.h>
 #include <linux/platform_data/usb-davinci.h>
 #include <linux/platform_data/spi-davinci.h>
+#include <linux/platform_data/uio_pruss.h>
 
 #include <media/davinci/vpif_types.h>
 
@@ -87,6 +88,7 @@ int da8xx_register_watchdog(void);
 int da8xx_register_usb20(unsigned mA, unsigned potpgt);
 int da8xx_register_usb11(struct da8xx_ohci_root_hub *pdata);
 int da8xx_register_emac(void);
+int da8xx_register_uio_pruss(void);
 int da8xx_register_lcdc(struct da8xx_lcdc_platform_data *pdata);
 int da8xx_register_mmcsd0(struct davinci_mmc_config *config);
 int da850_register_mmcsd1(struct davinci_mmc_config *config);