Merge branch 'for-rmk' of git://git.pengutronix.de/git/imx/linux-2.6 into devel-stable

1 files changed, 78 insertions, 96 deletions

diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
index d0602dd5d1b2..d5a5d4d9c19b 100644
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -273,50 +273,6 @@ struct sdma_channel {
 #define MXC_SDMA_MIN_PRIORITY 1
 #define MXC_SDMA_MAX_PRIORITY 7
 
-/**
- * struct sdma_script_start_addrs - SDMA script start pointers
- *
- * start addresses of the different functions in the physical
- * address space of the SDMA engine.
- */
-struct sdma_script_start_addrs {
-	u32 ap_2_ap_addr;
-	u32 ap_2_bp_addr;
-	u32 ap_2_ap_fixed_addr;
-	u32 bp_2_ap_addr;
-	u32 loopback_on_dsp_side_addr;
-	u32 mcu_interrupt_only_addr;
-	u32 firi_2_per_addr;
-	u32 firi_2_mcu_addr;
-	u32 per_2_firi_addr;
-	u32 mcu_2_firi_addr;
-	u32 uart_2_per_addr;
-	u32 uart_2_mcu_addr;
-	u32 per_2_app_addr;
-	u32 mcu_2_app_addr;
-	u32 per_2_per_addr;
-	u32 uartsh_2_per_addr;
-	u32 uartsh_2_mcu_addr;
-	u32 per_2_shp_addr;
-	u32 mcu_2_shp_addr;
-	u32 ata_2_mcu_addr;
-	u32 mcu_2_ata_addr;
-	u32 app_2_per_addr;
-	u32 app_2_mcu_addr;
-	u32 shp_2_per_addr;
-	u32 shp_2_mcu_addr;
-	u32 mshc_2_mcu_addr;
-	u32 mcu_2_mshc_addr;
-	u32 spdif_2_mcu_addr;
-	u32 mcu_2_spdif_addr;
-	u32 asrc_2_mcu_addr;
-	u32 ext_mem_2_ipu_addr;
-	u32 descrambler_addr;
-	u32 dptc_dvfs_addr;
-	u32 utra_addr;
-	u32 ram_code_start_addr;
-};
-
 #define SDMA_FIRMWARE_MAGIC 0x414d4453
 
 /**
@@ -1127,8 +1083,74 @@ static void sdma_issue_pending(struct dma_chan *chan)
 	 */
 }
 
-static int __init sdma_init(struct sdma_engine *sdma,
-		void *ram_code, int ram_code_size)
+#define SDMA_SCRIPT_ADDRS_ARRAY_SIZE_V1	34
+
+static void sdma_add_scripts(struct sdma_engine *sdma,
+		const struct sdma_script_start_addrs *addr)
+{
+	s32 *addr_arr = (u32 *)addr;
+	s32 *saddr_arr = (u32 *)sdma->script_addrs;
+	int i;
+
+	for (i = 0; i < SDMA_SCRIPT_ADDRS_ARRAY_SIZE_V1; i++)
+		if (addr_arr[i] > 0)
+			saddr_arr[i] = addr_arr[i];
+}
+
+static int __init sdma_get_firmware(struct sdma_engine *sdma,
+		const char *cpu_name, int to_version)
+{
+	const struct firmware *fw;
+	char *fwname;
+	const struct sdma_firmware_header *header;
+	int ret;
+	const struct sdma_script_start_addrs *addr;
+	unsigned short *ram_code;
+
+	fwname = kasprintf(GFP_KERNEL, "sdma-%s-to%d.bin", cpu_name, to_version);
+	if (!fwname)
+		return -ENOMEM;
+
+	ret = request_firmware(&fw, fwname, sdma->dev);
+	if (ret) {
+		kfree(fwname);
+		return ret;
+	}
+	kfree(fwname);
+
+	if (fw->size < sizeof(*header))
+		goto err_firmware;
+
+	header = (struct sdma_firmware_header *)fw->data;
+
+	if (header->magic != SDMA_FIRMWARE_MAGIC)
+		goto err_firmware;
+	if (header->ram_code_start + header->ram_code_size > fw->size)
+		goto err_firmware;
+
+	addr = (void *)header + header->script_addrs_start;
+	ram_code = (void *)header + header->ram_code_start;
+
+	clk_enable(sdma->clk);
+	/* download the RAM image for SDMA */
+	sdma_load_script(sdma, ram_code,
+			header->ram_code_size,
+			sdma->script_addrs->ram_code_start_addr);
+	clk_disable(sdma->clk);
+
+	sdma_add_scripts(sdma, addr);
+
+	dev_info(sdma->dev, "loaded firmware %d.%d\n",
+			header->version_major,
+			header->version_minor);
+
+err_firmware:
+	release_firmware(fw);
+
+	return ret;
+}
+
+static int __init sdma_init(struct sdma_engine *sdma)
 {
 	int i, ret;
 	dma_addr_t ccb_phys;
@@ -1192,11 +1214,6 @@ static int __init sdma_init(struct sdma_engine *sdma,
 
 	__raw_writel(ccb_phys, sdma->regs + SDMA_H_C0PTR);
 
-	/* download the RAM image for SDMA */
-	sdma_load_script(sdma, ram_code,
-			ram_code_size,
-			sdma->script_addrs->ram_code_start_addr);
-
 	/* Set bits of CONFIG register with given context switching mode */
 	__raw_writel(SDMA_H_CONFIG_CSM, sdma->regs + SDMA_H_CONFIG);
 
@@ -1216,14 +1233,9 @@ err_dma_alloc:
 static int __init sdma_probe(struct platform_device *pdev)
 {
 	int ret;
-	const struct firmware *fw;
-	const struct sdma_firmware_header *header;
-	const struct sdma_script_start_addrs *addr;
 	int irq;
-	unsigned short *ram_code;
 	struct resource *iores;
 	struct sdma_platform_data *pdata = pdev->dev.platform_data;
-	char *fwname;
 	int i;
 	dma_cap_mask_t mask;
 	struct sdma_engine *sdma;
@@ -1262,38 +1274,9 @@ static int __init sdma_probe(struct platform_device *pdev)
 	if (ret)
 		goto err_request_irq;
 
-	fwname = kasprintf(GFP_KERNEL, "sdma-%s-to%d.bin",
-			pdata->cpu_name, pdata->to_version);
-	if (!fwname) {
-		ret = -ENOMEM;
-		goto err_cputype;
-	}
-
-	ret = request_firmware(&fw, fwname, &pdev->dev);
-	if (ret) {
-		dev_err(&pdev->dev, "request firmware \"%s\" failed with %d\n",
-				fwname, ret);
-		kfree(fwname);
-		goto err_cputype;
-	}
-	kfree(fwname);
-
-	if (fw->size < sizeof(*header))
-		goto err_firmware;
-
-	header = (struct sdma_firmware_header *)fw->data;
-
-	if (header->magic != SDMA_FIRMWARE_MAGIC)
-		goto err_firmware;
-	if (header->ram_code_start + header->ram_code_size > fw->size)
-		goto err_firmware;
-
-	addr = (void *)header + header->script_addrs_start;
-	ram_code = (void *)header + header->ram_code_start;
-	sdma->script_addrs = kmalloc(sizeof(*addr), GFP_KERNEL);
+	sdma->script_addrs = kzalloc(sizeof(*sdma->script_addrs), GFP_KERNEL);
 	if (!sdma->script_addrs)
-		goto err_firmware;
-	memcpy(sdma->script_addrs, addr, sizeof(*addr));
+		goto err_alloc;
 
 	sdma->version = pdata->sdma_version;
 
@@ -1316,10 +1299,15 @@ static int __init sdma_probe(struct platform_device *pdev)
 		list_add_tail(&sdmac->chan.device_node, &sdma->dma_device.channels);
 	}
 
-	ret = sdma_init(sdma, ram_code, header->ram_code_size);
+	ret = sdma_init(sdma);
 	if (ret)
 		goto err_init;
 
+	if (pdata->script_addrs)
+		sdma_add_scripts(sdma, pdata->script_addrs);
+
+	sdma_get_firmware(sdma, pdata->cpu_name, pdata->to_version);
+
 	sdma->dma_device.dev = &pdev->dev;
 
 	sdma->dma_device.device_alloc_chan_resources = sdma_alloc_chan_resources;
@@ -1336,10 +1324,6 @@ static int __init sdma_probe(struct platform_device *pdev)
 		goto err_init;
 	}
 
-	dev_info(&pdev->dev, "initialized (firmware %d.%d)\n",
-			header->version_major,
-			header->version_minor);
-
 	/* request channel 0. This is an internal control channel
 	 * to the SDMA engine and not available to clients.
 	 */
@@ -1347,15 +1331,13 @@ static int __init sdma_probe(struct platform_device *pdev)
 	dma_cap_set(DMA_SLAVE, mask);
 	dma_request_channel(mask, NULL, NULL);
 
-	release_firmware(fw);
+	dev_info(sdma->dev, "initialized\n");
 
 	return 0;
 
 err_init:
 	kfree(sdma->script_addrs);
-err_firmware:
-	release_firmware(fw);
-err_cputype:
+err_alloc:
 	free_irq(irq, sdma);
 err_request_irq:
 	iounmap(sdma->regs);