42 lines
1.5 KiB
Diff
42 lines
1.5 KiB
Diff
From b2e4f1560f7388f8157dd2c828211abbfad0e806 Mon Sep 17 00:00:00 2001
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From: Aaro Koskinen <aaro.koskinen@nsn.com>
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Date: Fri, 1 Nov 2013 17:06:04 +0200
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Subject: [PATCH] MIPS: cavium-octeon: fix early boot hang on EBH5600 board
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The boot hangs early on EBH5600 board when octeon_fdt_pip_iface() is
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trying enumerate a non-existant interface. The actual hang happens in
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cvmx_helper_interface_get_mode():
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mode.u64 = cvmx_read_csr(CVMX_GMXX_INF_MODE(interface));
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when interface == 4. We can avoid this situation by first checking that
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the interface exists in the DTB.
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Signed-off-by: Aaro Koskinen <aaro.koskinen@nsn.com>
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Acked-by: David Daney <david.daney@cavium.com>
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Signed-off-by: John Crispin <blogic@openwrt.org>
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Patchwork: http://patchwork.linux-mips.org/patch/6101/
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---
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arch/mips/cavium-octeon/octeon-platform.c | 6 +++---
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1 file changed, 3 insertions(+), 3 deletions(-)
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--- a/arch/mips/cavium-octeon/octeon-platform.c
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+++ b/arch/mips/cavium-octeon/octeon-platform.c
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@@ -336,14 +336,14 @@ static void __init octeon_fdt_pip_iface(
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int p;
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int count = 0;
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- if (cvmx_helper_interface_enumerate(idx) == 0)
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- count = cvmx_helper_ports_on_interface(idx);
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-
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snprintf(name_buffer, sizeof(name_buffer), "interface@%d", idx);
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iface = fdt_subnode_offset(initial_boot_params, pip, name_buffer);
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if (iface < 0)
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return;
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+ if (cvmx_helper_interface_enumerate(idx) == 0)
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+ count = cvmx_helper_ports_on_interface(idx);
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+
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for (p = 0; p < 16; p++)
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octeon_fdt_pip_port(iface, idx, p, count - 1, pmac);
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}
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