X-Git-Url: https://review.openocd.org/gitweb?a=blobdiff_plain;f=src%2Fflash%2Fdavinci_nand.c;h=d4c161975b319f03e0b4bc816313f3fe62f50112;hb=eba5608b5227696e00437543c0226ed04cae12d5;hp=ffd35608df18b6fe2ee5d8fda292151070fb544e;hpb=35e5e0712730d09804949df3f15a2fae1a6a704b;p=openocd.git

diff --git a/src/flash/davinci_nand.c b/src/flash/davinci_nand.c
index ffd35608df..d4c161975b 100644
--- a/src/flash/davinci_nand.c
+++ b/src/flash/davinci_nand.c
@@ -28,7 +28,7 @@
 #include "config.h"
 #endif
 
-#include "nand.h"
+#include "arm_nandio.h"
 
 
 enum ecc {
@@ -51,6 +51,9 @@ struct davinci_nand {
 	uint32_t		cmd;		/* with CLE */
 	uint32_t		addr;		/* with ALE */
 
+	/* write acceleration */
+	struct arm_nand_data	io;
+
 	/* page i/o for the relevant flavor of hardware ECC */
 	int (*read_page)(struct nand_device_s *nand, uint32_t page,
 			uint8_t *data, uint32_t data_size, uint8_t *oob, uint32_t oob_size);
@@ -181,7 +184,7 @@ static int davinci_read_data(struct nand_device_s *nand, void *data)
 	return ERROR_OK;
 }
 
-/* REVISIT a bit of native code should let block I/O be MUCH faster */
+/* REVISIT a bit of native code should let block reads be MUCH faster */
 
 static int davinci_read_block_data(struct nand_device_s *nand,
 		uint8_t *data, int data_size)
@@ -223,10 +226,17 @@ static int davinci_write_block_data(struct nand_device_s *nand,
 	target_t *target = info->target;
 	uint32_t nfdata = info->data;
 	uint32_t tmp;
+	int status;
 
 	if (!halted(target, "write_block"))
 		return ERROR_NAND_OPERATION_FAILED;
 
+	/* try the fast way first */
+	status = arm_nandwrite(&info->io, data, data_size);
+	if (status != ERROR_NAND_NO_BUFFER)
+		return status;
+
+	/* else do it slowly */
 	while (data_size >= 4) {
 		tmp = le_to_h_u32(data);
 		target_write_u32(target, nfdata, tmp);
@@ -285,6 +295,12 @@ static int davinci_write_page(struct nand_device_s *nand, uint32_t page,
 		memset(oob, 0x0ff, oob_size);
 	}
 
+	/* REVISIT avoid wasting SRAM:  unless nand->use_raw is set,
+	 * use 512 byte chunks.  Read side support will often want
+	 * to include oob_size ...
+	 */
+	info->io.chunk_size = nand->page_size;
+
 	status = info->write_page(nand, page, data, data_size, oob, oob_size);
 	free(ooballoc);
 	return status;
@@ -613,16 +629,13 @@ static int davinci_read_page_ecc4infix(struct nand_device_s *nand, uint32_t page
 	return ERROR_OK;
 }
 
-static int davinci_nand_device_command(struct command_context_s *cmd_ctx,
-		char *cmd, char **argv, int argc,
-		struct nand_device_s *nand)
+NAND_DEVICE_COMMAND_HANDLER(davinci_nand_device_command)
 {
 	struct davinci_nand *info;
 	target_t *target;
 	unsigned long chip, aemif;
 	enum ecc eccmode;
 	int chipsel;
-	char *ep;
 
 	/* arguments:
 	 *  - "davinci"
@@ -635,36 +648,36 @@ static int davinci_nand_device_command(struct command_context_s *cmd_ctx,
 	if (argc < 5) {
 		LOG_ERROR("parameters: %s target "
 				"chip_addr hwecc_mode aemif_addr",
-				argv[0]);
+				args[0]);
 		goto fail;
 	}
 
-	target = get_target(argv[1]);
+	target = get_target(args[1]);
 	if (!target) {
-		LOG_ERROR("invalid target %s", argv[1]);
+		LOG_ERROR("invalid target %s", args[1]);
 		goto fail;
 	}
 
-	chip = strtoul(argv[2], &ep, 0);
-	if (*ep || chip == 0 || chip == ULONG_MAX) {
-		LOG_ERROR("Invalid NAND chip address %s", argv[2]);
+	COMMAND_PARSE_NUMBER(ulong, args[2], chip);
+	if (chip == 0) {
+		LOG_ERROR("Invalid NAND chip address %s", args[2]);
 		goto fail;
 	}
 
-	if (strcmp(argv[3], "hwecc1") == 0)
+	if (strcmp(args[3], "hwecc1") == 0)
 		eccmode = HWECC1;
-	else if (strcmp(argv[3], "hwecc4") == 0)
+	else if (strcmp(args[3], "hwecc4") == 0)
 		eccmode = HWECC4;
-	else if (strcmp(argv[3], "hwecc4_infix") == 0)
+	else if (strcmp(args[3], "hwecc4_infix") == 0)
 		eccmode = HWECC4_INFIX;
 	else {
-		LOG_ERROR("Invalid ecc mode %s", argv[3]);
+		LOG_ERROR("Invalid ecc mode %s", args[3]);
 		goto fail;
 	}
 
-	aemif = strtoul(argv[4], &ep, 0);
-	if (*ep || chip == 0 || chip == ULONG_MAX) {
-		LOG_ERROR("Invalid AEMIF controller address %s", argv[4]);
+	COMMAND_PARSE_NUMBER(ulong, args[4], aemif);
+	if (aemif == 0) {
+		LOG_ERROR("Invalid AEMIF controller address %s", args[4]);
 		goto fail;
 	}
 
@@ -700,6 +713,9 @@ static int davinci_nand_device_command(struct command_context_s *cmd_ctx,
 
 	nand->controller_priv = info;
 
+	info->io.target = target;
+	info->io.data = info->data;
+
 	/* NOTE:  for now we don't do any error correction on read.
 	 * Nothing else in OpenOCD currently corrects read errors,
 	 * and in any case it's *writing* that we care most about.
@@ -728,7 +744,7 @@ fail:
 	return ERROR_NAND_OPERATION_FAILED;
 }
 
-nand_flash_controller_t davinci_nand_controller = {
+struct nand_flash_controller davinci_nand_controller = {
 	.name			= "davinci",
 	.nand_device_command	= davinci_nand_device_command,
 	.register_commands	= davinci_register_commands,