diff options
Diffstat (limited to 'arch/mips/cavium-octeon/executive/octeon-model.c')
| -rw-r--r-- | arch/mips/cavium-octeon/executive/octeon-model.c | 49 |
1 files changed, 35 insertions, 14 deletions
diff --git a/arch/mips/cavium-octeon/executive/octeon-model.c b/arch/mips/cavium-octeon/executive/octeon-model.c index f4c1b36fdf65..e15b049b3bd7 100644 --- a/arch/mips/cavium-octeon/executive/octeon-model.c +++ b/arch/mips/cavium-octeon/executive/octeon-model.c @@ -28,22 +28,23 @@ #include <asm/octeon/octeon.h> /** - * 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. - * - XXXX = The chip model number - * - X.X = Chip pass number - * - FREQ = Current frequency in Mhz - * - SUFFIX = NSP, EXP, SCP, SSP, or CP - * - * @chip_id: Chip ID + * Read a byte of fuse data + * @byte_addr: address to read * - * Returns Model string + * Returns fuse value: 0 or 1 */ -const char *octeon_model_get_string(uint32_t chip_id) +static uint8_t __init cvmx_fuse_read_byte(int byte_addr) { - static char buffer[32]; - return octeon_model_get_string_buffer(chip_id, buffer); + 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; } /* @@ -51,7 +52,8 @@ const char *octeon_model_get_string(uint32_t chip_id) * as running early in u-boot static/global variables don't work when * running from flash. */ -const char *octeon_model_get_string_buffer(uint32_t chip_id, char *buffer) +static const char *__init octeon_model_get_string_buffer(uint32_t chip_id, + char *buffer) { const char *family; const char *core_model; @@ -407,3 +409,22 @@ const char *octeon_model_get_string_buffer(uint32_t chip_id, char *buffer) sprintf(buffer, "CN%s%sp%s-%d-%s", family, core_model, pass, clock_mhz, suffix); return buffer; } + +/** + * 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. + * - XXXX = The chip model number + * - X.X = Chip pass number + * - FREQ = Current frequency in Mhz + * - SUFFIX = NSP, EXP, SCP, SSP, or CP + * + * @chip_id: Chip ID + * + * Returns Model string + */ +const char *__init octeon_model_get_string(uint32_t chip_id) +{ + static char buffer[32]; + return octeon_model_get_string_buffer(chip_id, buffer); +} |