diff options
Diffstat (limited to 'src/drivers/spi')
| -rw-r--r-- | src/drivers/spi/spi_winbond.h | 37 | ||||
| -rw-r--r-- | src/drivers/spi/winbond.c | 34 |
2 files changed, 49 insertions, 22 deletions
diff --git a/src/drivers/spi/spi_winbond.h b/src/drivers/spi/spi_winbond.h new file mode 100644 index 0000000000..e21571c56c --- /dev/null +++ b/src/drivers/spi/spi_winbond.h @@ -0,0 +1,37 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2008, Network Appliance Inc. + * Author: Jason McMullan <mcmullan <at> netapp.com> + * + * 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; version 2 of the License. + * + * 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. + */ + +/* Winbond specific function */ +/* M25Pxx-specific commands */ +#define CMD_W25_WREN 0x06 /* Write Enable */ +#define CMD_W25_WRDI 0x04 /* Write Disable */ +#define CMD_W25_RDSR 0x05 /* Read Status Register */ +#define CMD_W25_WRSR 0x01 /* Write Status Register */ +#define CMD_W25_RDSR2 0x35 /* Read Status2 Register */ +#define CMD_W25_WRSR2 0x31 /* Write Status2 Register */ +#define CMD_W25_READ 0x03 /* Read Data Bytes */ +#define CMD_W25_FAST_READ 0x0b /* Read Data Bytes at Higher Speed */ +#define CMD_W25_PP 0x02 /* Page Program */ +#define CMD_W25_SE 0x20 /* Sector (4K) Erase */ +#define CMD_W25_RDID 0x9f /* Read ID */ +#define CMD_W25_BE 0xd8 /* Block (64K) Erase */ +#define CMD_W25_CE 0xc7 /* Chip Erase */ +#define CMD_W25_DP 0xb9 /* Deep Power-down */ +#define CMD_W25_RES 0xab /* Release from DP and Read Signature */ +#define CMD_VOLATILE_SREG_WREN 0x50 /* Write Enable for Volatile SREG */ + +/* tw: Maximum time to write a flash cell in milliseconds */ +#define WINBOND_FLASH_TIMEOUT 30 diff --git a/src/drivers/spi/winbond.c b/src/drivers/spi/winbond.c index 5a75ccc766..be0850493f 100644 --- a/src/drivers/spi/winbond.c +++ b/src/drivers/spi/winbond.c @@ -1,7 +1,16 @@ /* * Copyright 2008, Network Appliance Inc. - * Author: Jason McMullan <mcmullan <at> netapp.com> - * Licensed under the GPL-2 or later. + * Jason McMullan <mcmullan@netapp.com> + * + * 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. */ #include <console/console.h> @@ -14,26 +23,7 @@ #include <lib.h> #include "spi_flash_internal.h" - -/* M25Pxx-specific commands */ -#define CMD_W25_WREN 0x06 /* Write Enable */ -#define CMD_W25_WRDI 0x04 /* Write Disable */ -#define CMD_W25_RDSR 0x05 /* Read Status Register */ -#define CMD_W25_WRSR 0x01 /* Write Status Register */ -#define CMD_W25_RDSR2 0x35 /* Read Status2 Register */ -#define CMD_W25_WRSR2 0x31 /* Write Status2 Register */ -#define CMD_W25_READ 0x03 /* Read Data Bytes */ -#define CMD_W25_FAST_READ 0x0b /* Read Data Bytes at Higher Speed */ -#define CMD_W25_PP 0x02 /* Page Program */ -#define CMD_W25_SE 0x20 /* Sector (4K) Erase */ -#define CMD_W25_BE 0xd8 /* Block (64K) Erase */ -#define CMD_W25_CE 0xc7 /* Chip Erase */ -#define CMD_W25_DP 0xb9 /* Deep Power-down */ -#define CMD_W25_RES 0xab /* Release from DP, and Read Signature */ -#define CMD_VOLATILE_SREG_WREN 0x50 /* Write Enable for Volatile SREG */ - -/* tw: Maximum time to write a flash cell in milliseconds */ -#define WINBOND_FLASH_TIMEOUT 30 +#include "spi_winbond.h" struct winbond_spi_flash_params { uint16_t id; |