diff options
| -rw-r--r-- | src/mainboard/dell/s1850/auto.c | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/src/mainboard/dell/s1850/auto.c b/src/mainboard/dell/s1850/auto.c index a32df1ec4d..0e07300856 100644 --- a/src/mainboard/dell/s1850/auto.c +++ b/src/mainboard/dell/s1850/auto.c @@ -74,6 +74,107 @@ static inline int spd_read_byte(unsigned device, unsigned address) #include "sdram/generic_sdram.c" +/* IPMI garbage. This is all test stuff, if it really works we'll move it somewhere + */ + +#define nftransport 0xc + +#define OBF 0 +#define IBF 1 + +#define ipmidata 0xca0 +#define ipmicsr 0xca4 + + +static inline void ibfzero(void) +{ + while(inb(ipmicsr) & (1<<IBF)) + ; +} +static inline void clearobf(void) +{ + (void) inb(ipmidata); +} + +static inline void waitobf(void) +{ + while((inb(ipmicsr) & (1<<OBF)) == 0) + ; +} +/* quite possibly the stupidest interface ever designed. */ +static inline void first_cmd_byte(unsigned char byte) +{ + ibfzero(); + clearobf(); + outb(0x61, ipmicsr); + ibfzero(); + clearobf(); + outb(byte, ipmidata); +} + +static inline void next_cmd_byte(unsigned char byte) +{ + + ibfzero(); + clearobf(); + outb(byte, ipmidata); +} + +static inline void last_cmd_byte(unsigned char byte) +{ + outb(0x62, ipmicsr); + + ibfzero(); + clearobf(); + outb(byte, ipmidata); +} + +static inline void read_response_byte(void) +{ + int val = -1; + if ((inb(ipmicsr)>>6) != 1) + return; + + ibfzero(); + waitobf(); + val = inb(ipmidata); + outb(0x68, ipmidata); + + /* see if it is done */ + if ((inb(ipmicsr)>>6) != 1){ + /* wait for the dummy read. Which describes this protocol */ + waitobf(); + (void)inb(ipmidata); + } +} + +static inline void ipmidelay(void) +{ + int i; + for(i = 0; i < 1000; i++) { + inb(0x80); + } +} + +static inline void bmc_foad(void) +{ + unsigned char c; + /* be safe; make sure it is really ready */ + while ((inb(ipmicsr)>>6)) { + outb(0x60, ipmicsr); + inb(ipmidata); + } + first_cmd_byte(nftransport << 2); + ipmidelay(); + next_cmd_byte(0x12); + ipmidelay(); + next_cmd_byte(2); + ipmidelay(); + last_cmd_byte(3); + ipmidelay(); +} + +/* end IPMI garbage */ static void main(unsigned long bist) { /* @@ -100,6 +201,7 @@ static void main(unsigned long bist) } } /* Setup the console */ + bmc_foad(); outb(0x87,0x2e); outb(0x87,0x2e); pnp_write_config(CONSOLE_SERIAL_DEV, 0x24, 0x84 | (1 << 6)); |