diff options
| author |   Aaro Koskinen <aaro.koskinen@nsn.com> | 2014-09-08 18:25:40 +0300 |
|---|---|---|
| committer |   Ralf Baechle <ralf@linux-mips.org> | 2014-11-24 07:45:32 +0100 |
| commit | 0f24017a108e7fd4319143bfd0968d5cd026f33d (patch) | |
| tree | 0358d36ea75467b5d01c59f744217291e14241e1 /arch/mips/cavium-octeon/executive | |
| parent | MIPS: oprofile: Backtrace: don't fail on leaf functions (diff) | |
| download | linux-dev-0f24017a108e7fd4319143bfd0968d5cd026f33d.tar.xz linux-dev-0f24017a108e7fd4319143bfd0968d5cd026f33d.zip | |
MIPS: Octeon: Move cvmx_fuse_read_byte()
Move cvmx_fuse_read_byte() into a .c file.
Signed-off-by: Aaro Koskinen <aaro.koskinen@nsn.com>
Cc: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Cc: Aaro Koskinen <aaro.koskinen@nsn.com>
Patchwork: https://patchwork.linux-mips.org/patch/7666/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/cavium-octeon/executive')
| -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. |