diff options
| -rw-r--r-- | board_enable.c | 40 |
1 files changed, 9 insertions, 31 deletions
diff --git a/board_enable.c b/board_enable.c index a4f52b5..5381e82 100644 --- a/board_enable.c +++ b/board_enable.c @@ -495,51 +495,29 @@ static int board_artecgroup_dbe6x(const char *name) #define DBE6x_BOOT_LOC_FLASH (2) #define DBE6x_BOOT_LOC_FWHUB (3) - unsigned long msr[2]; - int msr_fd; + msr_t msr; unsigned long boot_loc; - msr_fd = open("/dev/cpu/0/msr", O_RDWR); - if (msr_fd == -1) { - perror("open /dev/cpu/0/msr"); + /* Geode only has a single core */ + if (setup_cpu_msr(0)) return -1; - } - if (lseek(msr_fd, DBE6x_MSR_DIVIL_BALL_OPTS, SEEK_SET) == -1) { - perror("lseek"); - close(msr_fd); - return -1; - } - - if (read(msr_fd, (void *)msr, 8) != 8) { - perror("read"); - close(msr_fd); - return -1; - } + msr = rdmsr(DBE6x_MSR_DIVIL_BALL_OPTS); - if ((msr[0] & (DBE6x_BOOT_OP_LATCHED)) == + if ((msr.lo & (DBE6x_BOOT_OP_LATCHED)) == (DBE6x_BOOT_LOC_FWHUB << DBE6x_BOOT_OP_LATCHED_SHIFT)) boot_loc = DBE6x_BOOT_LOC_FWHUB; else boot_loc = DBE6x_BOOT_LOC_FLASH; - msr[0] &= ~(DBE6x_PRI_BOOT_LOC | DBE6x_SEC_BOOT_LOC); - msr[0] |= ((boot_loc << DBE6x_PRI_BOOT_LOC_SHIFT) | + msr.lo &= ~(DBE6x_PRI_BOOT_LOC | DBE6x_SEC_BOOT_LOC); + msr.lo |= ((boot_loc << DBE6x_PRI_BOOT_LOC_SHIFT) | (boot_loc << DBE6x_SEC_BOOT_LOC_SHIFT)); - if (lseek(msr_fd, DBE6x_MSR_DIVIL_BALL_OPTS, SEEK_SET) == -1) { - perror("lseek"); - close(msr_fd); - return -1; - } + wrmsr(DBE6x_MSR_DIVIL_BALL_OPTS, msr); - if (write(msr_fd, (void *)msr, 8) != 8) { - perror("write"); - close(msr_fd); - return -1; - } + cleanup_cpu_msr(); - close(msr_fd); return 0; } |
