Merge tag 'davinci-for-v3.8/board' of git://gitorious.org/linux-davin…

…ci/linux-davinci into next/boards

From Sekhar Nori:

These changes add PRUSS support on DA850 EVM. There is also fixup
of include file ordering in the EVM file.

* tag 'davinci-for-v3.8/board' of git://gitorious.org/linux-davinci/linux-davinci:
  ARM: davinci: da850 evm: register uio_pruss device
  ARM: davinci: da850 evm: clean up include ordering
  ARM: davinci: da8xx: add DA850 PRUSS support
  ARM: davinci: add platform hook to fetch the SRAM pool
  ARM: davinci: da850: changed SRAM allocator to shared ram.
  ARM: davinci: sram: switch from iotable to ioremapped regions
  uio: uio_pruss: replace private SRAM API with genalloc
  ARM: davinci: serial: provide API to initialze UART clocks
  ARM: davinci: convert platform code to use clk_prepare/clk_unprepare

Signed-off-by: Olof Johansson <olof@lixom.net>

arch/arm/mach-davinci/board-da850-evm.c

@@ -11,39 +11,40 @@
  * is licensed "as is" without any warranty of any kind, whether express
  * or implied.
  */
-#include <linux/kernel.h>
-#include <linux/init.h>
 #include <linux/console.h>
+#include <linux/delay.h>
+#include <linux/gpio.h>
+#include <linux/gpio_keys.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
 #include <linux/i2c.h>
 #include <linux/i2c/at24.h>
 #include <linux/i2c/pca953x.h>
 #include <linux/input.h>
+#include <linux/input/tps6507x-ts.h>
 #include <linux/mfd/tps6507x.h>
-#include <linux/gpio.h>
-#include <linux/gpio_keys.h>
-#include <linux/platform_device.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/nand.h>
 #include <linux/mtd/partitions.h>
 #include <linux/mtd/physmap.h>
+#include <linux/platform_device.h>
+#include <linux/platform_data/mtd-davinci.h>
+#include <linux/platform_data/mtd-davinci-aemif.h>
+#include <linux/platform_data/spi-davinci.h>
+#include <linux/platform_data/uio_pruss.h>
 #include <linux/regulator/machine.h>
 #include <linux/regulator/tps6507x.h>
-#include <linux/input/tps6507x-ts.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/flash.h>
-#include <linux/delay.h>
 #include <linux/wl12xx.h>
 
-#include <asm/mach-types.h>
-#include <asm/mach/arch.h>
-#include <asm/system_info.h>
-
 #include <mach/cp_intc.h>
 #include <mach/da8xx.h>
-#include <linux/platform_data/mtd-davinci.h>
 #include <mach/mux.h>
-#include <linux/platform_data/mtd-davinci-aemif.h>
-#include <linux/platform_data/spi-davinci.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/system_info.h>
 
 #include <media/tvp514x.h>
 #include <media/adv7343.h>
@@ -1516,6 +1517,11 @@ static __init void da850_evm_init(void)
 		pr_warning("da850_evm_init: lcdcntl mux setup failed: %d\n",
 				ret);
 
+	ret = da8xx_register_uio_pruss();
+	if (ret)
+		pr_warn("da850_evm_init: pruss initialization failed: %d\n",
+				ret);
+
 	/* Handle board specific muxing for LCD here */
 	ret = davinci_cfg_reg_list(da850_evm_lcdc_pins);
 	if (ret)

arch/arm/mach-davinci/board-dm355-evm.c

@@ -324,7 +324,7 @@ static __init void dm355_evm_init(void)
 	if (IS_ERR(aemif))
 		WARN("%s: unable to get AEMIF clock\n", __func__);
 	else
-		clk_enable(aemif);
+		clk_prepare_enable(aemif);
 
 	platform_add_devices(davinci_evm_devices,
 			     ARRAY_SIZE(davinci_evm_devices));

arch/arm/mach-davinci/board-dm355-leopard.c

@@ -246,7 +246,7 @@ static __init void dm355_leopard_init(void)
 	if (IS_ERR(aemif))
 		WARN("%s: unable to get AEMIF clock\n", __func__);
 	else
-		clk_enable(aemif);
+		clk_prepare_enable(aemif);
 
 	platform_add_devices(davinci_leopard_devices,
 			     ARRAY_SIZE(davinci_leopard_devices));

arch/arm/mach-davinci/board-dm365-evm.c

@@ -478,7 +478,7 @@ static void __init evm_init_cpld(void)
 	aemif_clk = clk_get(NULL, "aemif");
 	if (IS_ERR(aemif_clk))
 		return;
-	clk_enable(aemif_clk);
+	clk_prepare_enable(aemif_clk);
 
 	if (request_mem_region(DM365_ASYNC_EMIF_DATA_CE1_BASE, SECTION_SIZE,
 			"cpld") == NULL)
@@ -489,7 +489,7 @@ static void __init evm_init_cpld(void)
 				SECTION_SIZE);
 fail:
 		pr_err("ERROR: can't map CPLD\n");
-		clk_disable(aemif_clk);
+		clk_disable_unprepare(aemif_clk);
 		return;
 	}
 

arch/arm/mach-davinci/board-dm644x-evm.c

@@ -776,7 +776,7 @@ static __init void davinci_evm_init(void)
 	struct davinci_soc_info *soc_info = &davinci_soc_info;
 
 	aemif_clk = clk_get(NULL, "aemif");
-	clk_enable(aemif_clk);
+	clk_prepare_enable(aemif_clk);
 
 	if (HAS_ATA) {
 		if (HAS_NAND || HAS_NOR)

arch/arm/mach-davinci/board-neuros-osd2.c

@@ -188,7 +188,7 @@ static __init void davinci_ntosd2_init(void)
 	struct davinci_soc_info *soc_info = &davinci_soc_info;
 
 	aemif_clk = clk_get(NULL, "aemif");
-	clk_enable(aemif_clk);
+	clk_prepare_enable(aemif_clk);
 
 	if (HAS_ATA) {
 		if (HAS_NAND)

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),
@@ -781,12 +788,6 @@ static struct map_desc da850_io_desc[] = {
 		.length		= DA8XX_CP_INTC_SIZE,
 		.type		= MT_DEVICE
 	},
-	{
-		.virtual	= SRAM_VIRT,
-		.pfn		= __phys_to_pfn(DA8XX_ARM_RAM_BASE),
-		.length		= SZ_8K,
-		.type		= MT_DEVICE
-	},
 };
 
 static u32 da850_psc_bases[] = { DA8XX_PSC0_BASE, DA8XX_PSC1_BASE };
@@ -1239,8 +1240,8 @@ static struct davinci_soc_info davinci_soc_info_da850 = {
 	.gpio_irq		= IRQ_DA8XX_GPIO0,
 	.serial_dev		= &da8xx_serial_device,
 	.emac_pdata		= &da8xx_emac_pdata,
-	.sram_dma		= DA8XX_ARM_RAM_BASE,
-	.sram_len		= SZ_8K,
+	.sram_dma		= DA8XX_SHARED_RAM_BASE,
+	.sram_len		= SZ_128K,
 };
 
 void __init da850_init(void)

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,
@@ -900,7 +971,7 @@ static int da850_sata_init(struct device *dev, void __iomem *addr)
 	if (IS_ERR(da850_sata_clk))
 		return PTR_ERR(da850_sata_clk);
 
-	ret = clk_enable(da850_sata_clk);
+	ret = clk_prepare_enable(da850_sata_clk);
 	if (ret)
 		goto err0;
 
@@ -931,15 +1002,15 @@ static int da850_sata_init(struct device *dev, void __iomem *addr)
 	return 0;
 
 err1:
-	clk_disable(da850_sata_clk);
+	clk_disable_unprepare(da850_sata_clk);
 err0:
 	clk_put(da850_sata_clk);
 	return ret;
 }
 
 static void da850_sata_exit(struct device *dev)
 {
-	clk_disable(da850_sata_clk);
+	clk_disable_unprepare(da850_sata_clk);
 	clk_put(da850_sata_clk);
 }
 

arch/arm/mach-davinci/dm355.c

@@ -758,12 +758,6 @@ static struct map_desc dm355_io_desc[] = {
 		.length		= IO_SIZE,
 		.type		= MT_DEVICE
 	},
-	{
-		.virtual	= SRAM_VIRT,
-		.pfn		= __phys_to_pfn(0x00010000),
-		.length		= SZ_32K,
-		.type		= MT_MEMORY_NONCACHED,
-	},
 };
 
 /* Contents of JTAG ID register used to identify exact cpu type */

arch/arm/mach-davinci/dm365.c

@@ -985,12 +985,6 @@ static struct map_desc dm365_io_desc[] = {
 		.length		= IO_SIZE,
 		.type		= MT_DEVICE
 	},
-	{
-		.virtual	= SRAM_VIRT,
-		.pfn		= __phys_to_pfn(0x00010000),
-		.length		= SZ_32K,
-		.type		= MT_MEMORY_NONCACHED,
-	},
 };
 
 static struct resource dm365_ks_resources[] = {

arch/arm/mach-davinci/dm644x.c

@@ -786,12 +786,6 @@ static struct map_desc dm644x_io_desc[] = {
 		.length		= IO_SIZE,
 		.type		= MT_DEVICE
 	},
-	{
-		.virtual	= SRAM_VIRT,
-		.pfn		= __phys_to_pfn(0x00008000),
-		.length		= SZ_16K,
-		.type		= MT_MEMORY_NONCACHED,
-	},
 };
 
 /* Contents of JTAG ID register used to identify exact cpu type */

arch/arm/mach-davinci/dm646x.c

@@ -756,12 +756,6 @@ static struct map_desc dm646x_io_desc[] = {
 		.length		= IO_SIZE,
 		.type		= MT_DEVICE
 	},
-	{
-		.virtual	= SRAM_VIRT,
-		.pfn		= __phys_to_pfn(0x00010000),
-		.length		= SZ_32K,
-		.type		= MT_MEMORY_NONCACHED,
-	},
 };
 
 /* Contents of JTAG ID register used to identify exact cpu type */

arch/arm/mach-davinci/include/mach/common.h

@@ -104,8 +104,6 @@ int davinci_pm_init(void);
 static inline int davinci_pm_init(void) { return 0; }
 #endif
 
-/* standard place to map on-chip SRAMs; they *may* support DMA */
-#define SRAM_VIRT	0xfffe0000
 #define SRAM_SIZE	SZ_128K
 
 #endif /* __ARCH_ARM_MACH_DAVINCI_COMMON_H */

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>
 
@@ -72,6 +73,7 @@ extern unsigned int da850_max_speed;
 #define DA8XX_AEMIF_CS2_BASE	0x60000000
 #define DA8XX_AEMIF_CS3_BASE	0x62000000
 #define DA8XX_AEMIF_CTL_BASE	0x68000000
+#define DA8XX_SHARED_RAM_BASE	0x80000000
 #define DA8XX_ARM_RAM_BASE	0xffff0000
 
 void __init da830_init(void);
@@ -86,6 +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);

arch/arm/mach-davinci/include/mach/serial.h

@@ -43,6 +43,7 @@ struct davinci_uart_config {
 };
 
 extern int davinci_serial_init(struct davinci_uart_config *);
+extern int davinci_serial_setup_clk(unsigned instance, unsigned int *rate);
 #endif
 
 #endif /* __ASM_ARCH_SERIAL_H */

arch/arm/mach-davinci/include/mach/sram.h

@@ -24,4 +24,7 @@
 extern void *sram_alloc(size_t len, dma_addr_t *dma);
 extern void sram_free(void *addr, size_t len);
 
+/* Get the struct gen_pool * for use in platform data */
+extern struct gen_pool *sram_get_gen_pool(void);
+
 #endif /* __MACH_SRAM_H */