diff options
Diffstat (limited to 'drivers/char/nvram.c')
| -rw-r--r-- | drivers/char/nvram.c | 110 |
1 files changed, 1 insertions, 109 deletions
diff --git a/drivers/char/nvram.c b/drivers/char/nvram.c index 9e24bbd4090..1af733d0732 100644 --- a/drivers/char/nvram.c +++ b/drivers/char/nvram.c @@ -32,11 +32,9 @@ * added changelog * 1.2 Erik Gilling: Cobalt Networks support * Tim Hockin: general cleanup, Cobalt support - * 1.3 Jon Ringle: Comdial MP1000 support - * */ -#define NVRAM_VERSION "1.3" +#define NVRAM_VERSION "1.2" #include <linux/module.h> #include <linux/config.h> @@ -47,7 +45,6 @@ #define PC 1 #define ATARI 2 #define COBALT 3 -#define MP1000 4 /* select machine configuration */ #if defined(CONFIG_ATARI) @@ -57,9 +54,6 @@ # if defined(CONFIG_COBALT) # include <linux/cobalt-nvram.h> # define MACH COBALT -# elif defined(CONFIG_MACH_MP1000) -# undef MACH -# define MACH MP1000 # else # define MACH PC # endif @@ -118,23 +112,6 @@ #endif -#if MACH == MP1000 - -/* RTC in a MP1000 */ -#define CHECK_DRIVER_INIT() 1 - -#define MP1000_CKS_RANGE_START 0 -#define MP1000_CKS_RANGE_END 111 -#define MP1000_CKS_LOC 112 - -#define NVRAM_BYTES (128-NVRAM_FIRST_BYTE) - -#define mach_check_checksum mp1000_check_checksum -#define mach_set_checksum mp1000_set_checksum -#define mach_proc_infos mp1000_proc_infos - -#endif - /* Note that *all* calls to CMOS_READ and CMOS_WRITE must be done with * rtc_lock held. Due to the index-port/data-port design of the RTC, we * don't want two different things trying to get to it at once. (e.g. the @@ -938,91 +915,6 @@ atari_proc_infos(unsigned char *nvram, char *buffer, int *len, #endif /* MACH == ATARI */ -#if MACH == MP1000 - -static int -mp1000_check_checksum(void) -{ - int i; - unsigned short sum = 0; - unsigned short expect; - - for (i = MP1000_CKS_RANGE_START; i <= MP1000_CKS_RANGE_END; ++i) - sum += __nvram_read_byte(i); - - expect = __nvram_read_byte(MP1000_CKS_LOC+1)<<8 | - __nvram_read_byte(MP1000_CKS_LOC); - return ((sum & 0xffff) == expect); -} - -static void -mp1000_set_checksum(void) -{ - int i; - unsigned short sum = 0; - - for (i = MP1000_CKS_RANGE_START; i <= MP1000_CKS_RANGE_END; ++i) - sum += __nvram_read_byte(i); - __nvram_write_byte(sum >> 8, MP1000_CKS_LOC + 1); - __nvram_write_byte(sum & 0xff, MP1000_CKS_LOC); -} - -#ifdef CONFIG_PROC_FS - -#define SERVER_N_LEN 32 -#define PATH_N_LEN 32 -#define FILE_N_LEN 32 -#define NVRAM_MAGIC_SIG 0xdead - -typedef struct NvRamImage -{ - unsigned short int magic; - unsigned short int mode; - char fname[FILE_N_LEN]; - char path[PATH_N_LEN]; - char server[SERVER_N_LEN]; - char pad[12]; -} NvRam; - -static int -mp1000_proc_infos(unsigned char *nvram, char *buffer, int *len, - off_t *begin, off_t offset, int size) -{ - int checksum; - NvRam* nv = (NvRam*)nvram; - - spin_lock_irq(&rtc_lock); - checksum = __nvram_check_checksum(); - spin_unlock_irq(&rtc_lock); - - PRINT_PROC("Checksum status: %svalid\n", checksum ? "" : "not "); - - switch( nv->mode ) - { - case 0 : - PRINT_PROC( "\tMode 0, tftp prompt\n" ); - break; - case 1 : - PRINT_PROC( "\tMode 1, booting from disk\n" ); - break; - case 2 : - PRINT_PROC( "\tMode 2, Alternate boot from disk /boot/%s\n", nv->fname ); - break; - case 3 : - PRINT_PROC( "\tMode 3, Booting from net:\n" ); - PRINT_PROC( "\t\t%s:%s%s\n",nv->server, nv->path, nv->fname ); - break; - default: - PRINT_PROC( "\tInconsistant nvram?\n" ); - break; - } - - return 1; -} -#endif - -#endif /* MACH == MP1000 */ - MODULE_LICENSE("GPL"); EXPORT_SYMBOL(__nvram_read_byte); |