flash/nand: review NAND driver interface

From struct nand_flash_controller :
- remove unused field register_commands;
- remove field controller_ready, exported but
  never referenced.
Remove dead code pointed by controller_ready.

Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>

13 files changed, 2 insertions, 47 deletions

diff --git a/src/flash/nand/driver.h b/src/flash/nand/driver.h
index deb41b2a..4edce9fa 100644
--- a/src/flash/nand/driver.h
+++ b/src/flash/nand/driver.h
@@ -42,9 +42,6 @@ struct nand_flash_controller
 	/** NAND device command called when driver is instantiated during configuration. */
 	__NAND_DEVICE_COMMAND((*nand_device_command));
 
-	/** Register controller specific commands as a TCL interface to the driver. */
-	int (*register_commands)(struct command_context *cmd_ctx);
-
 	/** Initialize the NAND device. */
 	int (*init)(struct nand_device *nand);
 
@@ -75,9 +72,6 @@ struct nand_flash_controller
 	/** Read a page from the NAND device. */
 	int (*read_page)(struct nand_device *nand, uint32_t page, uint8_t *data, uint32_t data_size, uint8_t *oob, uint32_t oob_size);
 
-	/** Check if the controller is ready for more instructions with timeout. */
-	int (*controller_ready)(struct nand_device *nand, int timeout);
-
 	/** Check if the NAND device is ready for more instructions with timeout. */
 	int (*nand_ready)(struct nand_device *nand, int timeout);
 };
diff --git a/src/flash/nand/lpc3180.c b/src/flash/nand/lpc3180.c
index d81443d1..3285c42f 100644
--- a/src/flash/nand/lpc3180.c
+++ b/src/flash/nand/lpc3180.c
@@ -1363,6 +1363,5 @@ struct nand_flash_controller lpc3180_nand_controller = {
 	.read_data = lpc3180_read_data,
 	.write_page = lpc3180_write_page,
 	.read_page = lpc3180_read_page,
-	.controller_ready = lpc3180_controller_ready,
 	.nand_ready = lpc3180_nand_ready,
 };
diff --git a/src/flash/nand/mx2.c b/src/flash/nand/mx2.c
index 147546d7..42bb0720 100644
--- a/src/flash/nand/mx2.c
+++ b/src/flash/nand/mx2.c
@@ -73,7 +73,6 @@ static int do_data_output(struct nand_device *nand);
 
 static int imx27_command(struct nand_device *nand, uint8_t command);
 static int imx27_address(struct nand_device *nand, uint8_t address);
-static int imx27_controller_ready(struct nand_device *nand, int tout);
 
 NAND_DEVICE_COMMAND_HANDLER(imx27_nand_device_command)
 {
@@ -229,11 +228,6 @@ static int imx27_write_data(struct nand_device *nand, uint16_t data)
 	return ERROR_NAND_OPERATION_FAILED;
 }
 
-static int imx27_nand_ready(struct nand_device *nand, int timeout)
-{
-	return imx27_controller_ready(nand, timeout);
-}
-
 static int imx27_reset(struct nand_device *nand)
 {
 	/*
@@ -342,7 +336,7 @@ static int imx27_address(struct nand_device *nand, uint8_t address)
 	return ERROR_OK;
 }
 
-static int imx27_controller_ready(struct nand_device *nand, int tout)
+static int imx27_nand_ready(struct nand_device *nand, int tout)
 {
 	uint16_t poll_complete_status;
 	struct mx2_nf_controller *mx2_nf_info = nand->controller_priv;
@@ -771,6 +765,5 @@ struct nand_flash_controller imx27_nand_flash_controller = {
 	.read_data		= &imx27_read_data,
 	.write_page		= &imx27_write_page,
 	.read_page		= &imx27_read_page,
-	.controller_ready	= &imx27_controller_ready,
 	.nand_ready		= &imx27_nand_ready,
 };
diff --git a/src/flash/nand/mx3.c b/src/flash/nand/mx3.c
index 7d9cc8b9..7676d1b8 100644
--- a/src/flash/nand/mx3.c
+++ b/src/flash/nand/mx3.c
@@ -61,7 +61,6 @@ static int do_data_output (struct nand_device *nand);
 
 static int imx31_command (struct nand_device *nand, uint8_t command);
 static int imx31_address (struct nand_device *nand, uint8_t address);
-static int imx31_controller_ready (struct nand_device *nand, int tout);
 
 NAND_DEVICE_COMMAND_HANDLER(imx31_nand_device_command)
 {
@@ -312,11 +311,6 @@ static int imx31_write_data (struct nand_device *nand, uint16_t data)
 	return ERROR_NAND_OPERATION_FAILED;
 }
 
-static int imx31_nand_ready (struct nand_device *nand, int timeout)
-{
-	return imx31_controller_ready (nand, timeout);
-}
-
 static int imx31_reset (struct nand_device *nand)
 {
 	/*
@@ -438,7 +432,7 @@ static int imx31_address (struct nand_device *nand, uint8_t address)
 	return ERROR_OK;
 }
 
-static int imx31_controller_ready (struct nand_device *nand, int tout)
+static int imx31_nand_ready (struct nand_device *nand, int tout)
 {
 	uint16_t poll_complete_status;
 	struct mx3_nf_controller *mx3_nf_info = nand->controller_priv;
@@ -876,6 +870,5 @@ struct nand_flash_controller imx31_nand_flash_controller = {
 		.read_data = &imx31_read_data,
 		.write_page = &imx31_write_page,
 		.read_page = &imx31_read_page,
-		.controller_ready = &imx31_controller_ready,
 		.nand_ready = &imx31_nand_ready,
 	};
diff --git a/src/flash/nand/nonce.c b/src/flash/nand/nonce.c
index ab490aea..565ad727 100644
--- a/src/flash/nand/nonce.c
+++ b/src/flash/nand/nonce.c
@@ -52,11 +52,6 @@ static int nonce_nand_reset(struct nand_device *nand)
 	return nonce_nand_command(nand, NAND_CMD_RESET);
 }
 
-static int nonce_nand_controller_ready(struct nand_device *nand, int timeout)
-{
-	return true;
-}
-
 NAND_DEVICE_COMMAND_HANDLER(nonce_nand_device_command)
 {
 	return ERROR_OK;
@@ -79,5 +74,4 @@ struct nand_flash_controller nonce_nand_controller =
 	.read_data		= &nonce_nand_read,
 	.write_data		= &nonce_nand_write,
 	.write_block_data	= &nonce_nand_fast_block_write,
-	.controller_ready	= &nonce_nand_controller_ready,
 };
diff --git a/src/flash/nand/orion.c b/src/flash/nand/orion.c
index b46ffaed..3ab2364d 100644
--- a/src/flash/nand/orion.c
+++ b/src/flash/nand/orion.c
@@ -116,11 +116,6 @@ static int orion_nand_reset(struct nand_device *nand)
 	return orion_nand_command(nand, NAND_CMD_RESET);
 }
 
-static int orion_nand_controller_ready(struct nand_device *nand, int timeout)
-{
-	return 1;
-}
-
 NAND_DEVICE_COMMAND_HANDLER(orion_nand_device_command)
 {
 	struct orion_nand_controller *hw;
@@ -175,7 +170,6 @@ struct nand_flash_controller orion_nand_controller =
 	.write_data		= orion_nand_write,
 	.write_block_data	= orion_nand_fast_block_write,
 	.reset			= orion_nand_reset,
-	.controller_ready	= orion_nand_controller_ready,
 	.nand_device_command	= orion_nand_device_command,
 	.init			= orion_nand_init,
 };
diff --git a/src/flash/nand/s3c2410.c b/src/flash/nand/s3c2410.c
index 3c391bce..1827c74e 100644
--- a/src/flash/nand/s3c2410.c
+++ b/src/flash/nand/s3c2410.c
@@ -118,6 +118,5 @@ struct nand_flash_controller s3c2410_nand_controller = {
 		.read_data = &s3c2410_read_data,
 		.write_page = s3c24xx_write_page,
 		.read_page = s3c24xx_read_page,
-		.controller_ready = &s3c24xx_controller_ready,
 		.nand_ready = &s3c2410_nand_ready,
 	};
diff --git a/src/flash/nand/s3c2412.c b/src/flash/nand/s3c2412.c
index 57843053..f43f8a69 100644
--- a/src/flash/nand/s3c2412.c
+++ b/src/flash/nand/s3c2412.c
@@ -74,6 +74,5 @@ struct nand_flash_controller s3c2412_nand_controller = {
 		.read_page = s3c24xx_read_page,
 		.write_block_data = &s3c2440_write_block_data,
 		.read_block_data = &s3c2440_read_block_data,
-		.controller_ready = &s3c24xx_controller_ready,
 		.nand_ready = &s3c2440_nand_ready,
 	};
diff --git a/src/flash/nand/s3c2440.c b/src/flash/nand/s3c2440.c
index d1a421e3..797ce242 100644
--- a/src/flash/nand/s3c2440.c
+++ b/src/flash/nand/s3c2440.c
@@ -166,6 +166,5 @@ struct nand_flash_controller s3c2440_nand_controller = {
 		.read_page = s3c24xx_read_page,
 		.write_block_data = &s3c2440_write_block_data,
 		.read_block_data = &s3c2440_read_block_data,
-		.controller_ready = &s3c24xx_controller_ready,
 		.nand_ready = &s3c2440_nand_ready,
 	};
diff --git a/src/flash/nand/s3c2443.c b/src/flash/nand/s3c2443.c
index d3414771..5fb2d927 100644
--- a/src/flash/nand/s3c2443.c
+++ b/src/flash/nand/s3c2443.c
@@ -75,6 +75,5 @@ struct nand_flash_controller s3c2443_nand_controller = {
 		.read_page = s3c24xx_read_page,
 		.write_block_data = &s3c2440_write_block_data,
 		.read_block_data = &s3c2440_read_block_data,
-		.controller_ready = &s3c24xx_controller_ready,
 		.nand_ready = &s3c2440_nand_ready,
 	};
diff --git a/src/flash/nand/s3c24xx.c b/src/flash/nand/s3c24xx.c
index d305b221..e3b5c2e2 100644
--- a/src/flash/nand/s3c24xx.c
+++ b/src/flash/nand/s3c24xx.c
@@ -126,8 +126,3 @@ int s3c24xx_read_data(struct nand_device *nand, void *data)
 	target_read_u8(target, s3c24xx_info->data, data);
 	return ERROR_OK;
 }
-
-int s3c24xx_controller_ready(struct nand_device *nand, int timeout)
-{
-	return 1;
-}
diff --git a/src/flash/nand/s3c24xx.h b/src/flash/nand/s3c24xx.h
index 9424cb3e..059c84d9 100644
--- a/src/flash/nand/s3c24xx.h
+++ b/src/flash/nand/s3c24xx.h
@@ -68,8 +68,6 @@ int s3c24xx_address(struct nand_device *nand, uint8_t address);
 int s3c24xx_write_data(struct nand_device *nand, uint16_t data);
 int s3c24xx_read_data(struct nand_device *nand, void *data);
 
-int s3c24xx_controller_ready(struct nand_device *nand, int tout);
-
 #define s3c24xx_write_page NULL
 #define s3c24xx_read_page NULL
 
diff --git a/src/flash/nand/s3c6400.c b/src/flash/nand/s3c6400.c
index 20b6cc17..960447d9 100644
--- a/src/flash/nand/s3c6400.c
+++ b/src/flash/nand/s3c6400.c
@@ -71,6 +71,5 @@ struct nand_flash_controller s3c6400_nand_controller = {
 		.read_page = s3c24xx_read_page,
 		.write_block_data = &s3c2440_write_block_data,
 		.read_block_data = &s3c2440_read_block_data,
-		.controller_ready = &s3c24xx_controller_ready,
 		.nand_ready = &s3c2440_nand_ready,
 	};