diff options
Diffstat (limited to 'arch/mips/cavium-octeon/executive/octeon-model.c')
| -rw-r--r-- | arch/mips/cavium-octeon/executive/octeon-model.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/mips/cavium-octeon/executive/octeon-model.c b/arch/mips/cavium-octeon/executive/octeon-model.c index f4c1b36fdf65..e1878723efd8 100644 --- a/arch/mips/cavium-octeon/executive/octeon-model.c +++ b/arch/mips/cavium-octeon/executive/octeon-model.c @@ -28,6 +28,26 @@ #include <asm/octeon/octeon.h> /** + * Read a byte of fuse data + * @byte_addr: address to read + * + * Returns fuse value: 0 or 1 + */ +uint8_t cvmx_fuse_read_byte(int byte_addr) +{ + union cvmx_mio_fus_rcmd read_cmd; + + read_cmd.u64 = 0; + read_cmd.s.addr = byte_addr; + read_cmd.s.pend = 1; + cvmx_write_csr(CVMX_MIO_FUS_RCMD, read_cmd.u64); + while ((read_cmd.u64 = cvmx_read_csr(CVMX_MIO_FUS_RCMD)) + && read_cmd.s.pend) + ; + return read_cmd.s.dat; +} + +/** * Given the chip processor ID from COP0, this function returns a * string representing the chip model number. The string is of the * form CNXXXXpX.X-FREQ-SUFFIX. |