add 'nonce' nand driver

The nonce NAND driver provides a no-op implementation useful for
testing the system independently of any driver side-effects.

diff --git a/src/flash/Makefile.am b/src/flash/Makefile.am
index 840323028ca1cbe26736f240ade3d7911dfc9169..94cc86e5c7efab0913c5f9094565416fc90c14ed 100644 (file)
--- a/src/flash/Makefile.am
+++ b/src/flash/Makefile.am
@@ -44,6 +44,7 @@ NAND_SRCS = \
        nand.c
 
 NAND_DEVICES_SRCS = \
+       nonce_nand.c \
        davinci_nand.c \
        lpc3180_nand_controller.c \
        mx3_nand.c \

diff --git a/src/flash/nand.c b/src/flash/nand.c
index 895abe31016a57bd69f722ff8dbf3c79fff49edc..94cec8d598059aeca4d7bb317f346661e30d8c8c 100644 (file)
--- a/src/flash/nand.c
+++ b/src/flash/nand.c
@@ -36,6 +36,7 @@ static int nand_write_page(struct nand_device *nand, uint32_t page, uint8_t *dat
 
 /* NAND flash controller
  */
+extern struct nand_flash_controller nonce_nand_controller;
 extern struct nand_flash_controller davinci_nand_controller;
 extern struct nand_flash_controller lpc3180_nand_controller;
 extern struct nand_flash_controller orion_nand_controller;
@@ -49,6 +50,7 @@ extern struct nand_flash_controller imx31_nand_flash_controller;
 
 static struct nand_flash_controller *nand_flash_controllers[] =
 {
+       &nonce_nand_controller,
        &davinci_nand_controller,
        &lpc3180_nand_controller,
        &orion_nand_controller,

diff --git a/src/flash/nonce_nand.c b/src/flash/nonce_nand.c
new file mode 100644 (file)
index 0000000..dae62a7
--- /dev/null
+++ b/src/flash/nonce_nand.c
@@ -0,0 +1,80 @@
+/***************************************************************************
+ *   Copyright (C) 2009 Zachary T Welch <zw@superlucidity.net>             *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+#include "nand.h"
+
+
+static int nonce_nand_command(struct nand_device *nand, uint8_t command)
+{
+       return ERROR_OK;
+}
+static int nonce_nand_address(struct nand_device *nand, uint8_t address)
+{
+       return ERROR_OK;
+}
+static int nonce_nand_read(struct nand_device *nand, void *data)
+{
+       return ERROR_OK;
+}
+static int nonce_nand_write(struct nand_device *nand, uint16_t data)
+{
+       return ERROR_OK;
+}
+static int nonce_nand_fast_block_write(struct nand_device *nand,
+               uint8_t *data, int size)
+{
+       return ERROR_OK;
+}
+
+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;
+}
+
+static int nonce_nand_init(struct nand_device *nand)
+{
+       return ERROR_OK;
+}
+
+struct nand_flash_controller nonce_nand_controller =
+{
+       .name                   = "nonce",
+       .nand_device_command    = &nonce_nand_device_command,
+       .init                   = &nonce_nand_init,
+       .reset                  = &nonce_nand_reset,
+       .command                = &nonce_nand_command,
+       .address                = &nonce_nand_address,
+       .read_data              = &nonce_nand_read,
+       .write_data             = &nonce_nand_write,
+       .write_block_data       = &nonce_nand_fast_block_write,
+       .controller_ready       = &nonce_nand_controller_ready,
+};