1 files changed, 103 insertions, 17 deletions

diff --git a/arch/arm/mach-davinci/devices-da8xx.c b/arch/arm/mach-davinci/devices-da8xx.c
index 2d5502d84a22..bf572525175d 100644
--- a/arch/arm/mach-davinci/devices-da8xx.c
+++ b/arch/arm/mach-davinci/devices-da8xx.c
@@ -12,7 +12,7 @@
  */
 #include <linux/init.h>
 #include <linux/platform_device.h>
-#include <linux/dma-mapping.h>
+#include <linux/dma-contiguous.h>
 #include <linux/serial_8250.h>
 #include <linux/ahci_platform.h>
 #include <linux/clk.h>
@@ -359,7 +359,7 @@ static struct resource da8xx_watchdog_resources[] = {
 	},
 };
 
-struct platform_device da8xx_wdt_device = {
+static struct platform_device da8xx_wdt_device = {
 	.name		= "watchdog",
 	.id		= -1,
 	.num_resources	= ARRAY_SIZE(da8xx_watchdog_resources),
@@ -368,7 +368,15 @@ struct platform_device da8xx_wdt_device = {
 
 void da8xx_restart(char mode, const char *cmd)
 {
-	davinci_watchdog_reset(&da8xx_wdt_device);
+	struct device *dev;
+
+	dev = bus_find_device_by_name(&platform_bus_type, NULL, "watchdog");
+	if (!dev) {
+		pr_err("%s: failed to find watchdog device\n", __func__);
+		return;
+	}
+
+	davinci_watchdog_reset(to_platform_device(dev));
 }
 
 int __init da8xx_register_watchdog(void)
@@ -656,7 +664,7 @@ static struct resource da8xx_mmcsd0_resources[] = {
 };
 
 static struct platform_device da8xx_mmcsd0_device = {
-	.name		= "davinci_mmc",
+	.name		= "da830-mmc",
 	.id		= 0,
 	.num_resources	= ARRAY_SIZE(da8xx_mmcsd0_resources),
 	.resource	= da8xx_mmcsd0_resources,
@@ -693,7 +701,7 @@ static struct resource da850_mmcsd1_resources[] = {
 };
 
 static struct platform_device da850_mmcsd1_device = {
-	.name		= "davinci_mmc",
+	.name		= "da830-mmc",
 	.id		= 1,
 	.num_resources	= ARRAY_SIZE(da850_mmcsd1_resources),
 	.resource	= da850_mmcsd1_resources,
@@ -706,6 +714,92 @@ int __init da850_register_mmcsd1(struct davinci_mmc_config *config)
 }
 #endif
 
+static struct resource da8xx_rproc_resources[] = {
+	{ /* DSP boot address */
+		.start		= DA8XX_SYSCFG0_BASE + DA8XX_HOST1CFG_REG,
+		.end		= DA8XX_SYSCFG0_BASE + DA8XX_HOST1CFG_REG + 3,
+		.flags		= IORESOURCE_MEM,
+	},
+	{ /* DSP interrupt registers */
+		.start		= DA8XX_SYSCFG0_BASE + DA8XX_CHIPSIG_REG,
+		.end		= DA8XX_SYSCFG0_BASE + DA8XX_CHIPSIG_REG + 7,
+		.flags		= IORESOURCE_MEM,
+	},
+	{ /* dsp irq */
+		.start		= IRQ_DA8XX_CHIPINT0,
+		.end		= IRQ_DA8XX_CHIPINT0,
+		.flags		= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device da8xx_dsp = {
+	.name	= "davinci-rproc",
+	.dev	= {
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+	},
+	.num_resources	= ARRAY_SIZE(da8xx_rproc_resources),
+	.resource	= da8xx_rproc_resources,
+};
+
+#if IS_ENABLED(CONFIG_DA8XX_REMOTEPROC)
+
+static phys_addr_t rproc_base __initdata;
+static unsigned long rproc_size __initdata;
+
+static int __init early_rproc_mem(char *p)
+{
+	char *endp;
+
+	if (p == NULL)
+		return 0;
+
+	rproc_size = memparse(p, &endp);
+	if (*endp == '@')
+		rproc_base = memparse(endp + 1, NULL);
+
+	return 0;
+}
+early_param("rproc_mem", early_rproc_mem);
+
+void __init da8xx_rproc_reserve_cma(void)
+{
+	int ret;
+
+	if (!rproc_base || !rproc_size) {
+		pr_err("%s: 'rproc_mem=nn@address' badly specified\n"
+		       "    'nn' and 'address' must both be non-zero\n",
+		       __func__);
+
+		return;
+	}
+
+	pr_info("%s: reserving 0x%lx @ 0x%lx...\n",
+		__func__, rproc_size, (unsigned long)rproc_base);
+
+	ret = dma_declare_contiguous(&da8xx_dsp.dev, rproc_size, rproc_base, 0);
+	if (ret)
+		pr_err("%s: dma_declare_contiguous failed %d\n", __func__, ret);
+}
+
+#else
+
+void __init da8xx_rproc_reserve_cma(void)
+{
+}
+
+#endif
+
+int __init da8xx_register_rproc(void)
+{
+	int ret;
+
+	ret = platform_device_register(&da8xx_dsp);
+	if (ret)
+		pr_err("%s: can't register DSP device: %d\n", __func__, ret);
+
+	return ret;
+};
+
 static struct resource da8xx_rtc_resources[] = {
 	{
 		.start		= DA8XX_RTC_BASE,
@@ -751,7 +845,7 @@ void __iomem * __init da8xx_get_mem_ctlr(void)
 
 	da8xx_ddr2_ctlr_base = ioremap(DA8XX_DDR2_CTL_BASE, SZ_32K);
 	if (!da8xx_ddr2_ctlr_base)
-		pr_warning("%s: Unable to map DDR2 controller",	__func__);
+		pr_warn("%s: Unable to map DDR2 controller", __func__);
 
 	return da8xx_ddr2_ctlr_base;
 }
@@ -832,7 +926,7 @@ static struct resource da8xx_spi1_resources[] = {
 	},
 };
 
-struct davinci_spi_platform_data da8xx_spi_pdata[] = {
+static struct davinci_spi_platform_data da8xx_spi_pdata[] = {
 	[0] = {
 		.version	= SPI_VERSION_2,
 		.intr_line	= 1,
@@ -866,20 +960,12 @@ static struct platform_device da8xx_spi_device[] = {
 	},
 };
 
-int __init da8xx_register_spi(int instance, const struct spi_board_info *info,
-			      unsigned len)
+int __init da8xx_register_spi_bus(int instance, unsigned num_chipselect)
 {
-	int ret;
-
 	if (instance < 0 || instance > 1)
 		return -EINVAL;
 
-	ret = spi_register_board_info(info, len);
-	if (ret)
-		pr_warning("%s: failed to register board info for spi %d :"
-			   " %d\n", __func__, instance, ret);
-
-	da8xx_spi_pdata[instance].num_chipselect = len;
+	da8xx_spi_pdata[instance].num_chipselect = num_chipselect;
 
 	if (instance == 1 && cpu_is_davinci_da850()) {
 		da8xx_spi1_resources[0].start = DA850_SPI1_BASE;