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| author |   Aaro Koskinen <aaro.koskinen@nsn.com> | 2013-11-01 17:06:04 +0200 |
|---|---|---|
| committer |   Ralf Baechle <ralf@linux-mips.org> | 2014-01-23 13:02:34 +0100 |
| commit | b2e4f1560f7388f8157dd2c828211abbfad0e806 (patch) | |
| tree | 3f4b6d6755e8ba4330cd69451554ef997a9fe67b /arch/mips/cavium-octeon | |
| parent | MIPS: cavium-octeon: fix out-of-bounds array access (diff) | |
| download | linux-dev-b2e4f1560f7388f8157dd2c828211abbfad0e806.tar.xz linux-dev-b2e4f1560f7388f8157dd2c828211abbfad0e806.zip | |
MIPS: cavium-octeon: fix early boot hang on EBH5600 board
The boot hangs early on EBH5600 board when octeon_fdt_pip_iface() is
trying enumerate a non-existant interface. The actual hang happens in
cvmx_helper_interface_get_mode():
mode.u64 = cvmx_read_csr(CVMX_GMXX_INF_MODE(interface));
when interface == 4. We can avoid this situation by first checking that
the interface exists in the DTB.
Signed-off-by: Aaro Koskinen <aaro.koskinen@nsn.com>
Acked-by: David Daney <david.daney@cavium.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6101/
Diffstat (limited to 'arch/mips/cavium-octeon')
| -rw-r--r-- | arch/mips/cavium-octeon/octeon-platform.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/mips/cavium-octeon/octeon-platform.c b/arch/mips/cavium-octeon/octeon-platform.c index 1830874ff1e2..f68c75ab8ece 100644 --- a/arch/mips/cavium-octeon/octeon-platform.c +++ b/arch/mips/cavium-octeon/octeon-platform.c @@ -336,14 +336,14 @@ static void __init octeon_fdt_pip_iface(int pip, int idx, u64 *pmac) int p; int count = 0; - if (cvmx_helper_interface_enumerate(idx) == 0) - count = cvmx_helper_ports_on_interface(idx); - snprintf(name_buffer, sizeof(name_buffer), "interface@%d", idx); iface = fdt_subnode_offset(initial_boot_params, pip, name_buffer); if (iface < 0) return; + if (cvmx_helper_interface_enumerate(idx) == 0) + count = cvmx_helper_ports_on_interface(idx); + for (p = 0; p < 16; p++) octeon_fdt_pip_port(iface, idx, p, count - 1, pmac); } |