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-rw-r--r--target/linux/octeon/patches-3.10/0009-MIPS-cavium-octeon-fix-early-boot-hang-on-EBH5600-bo.patch42
1 files changed, 42 insertions, 0 deletions
diff --git a/target/linux/octeon/patches-3.10/0009-MIPS-cavium-octeon-fix-early-boot-hang-on-EBH5600-bo.patch b/target/linux/octeon/patches-3.10/0009-MIPS-cavium-octeon-fix-early-boot-hang-on-EBH5600-bo.patch
new file mode 100644
index 0000000000..6cbbe348a0
--- /dev/null
+++ b/target/linux/octeon/patches-3.10/0009-MIPS-cavium-octeon-fix-early-boot-hang-on-EBH5600-bo.patch
@@ -0,0 +1,42 @@
+From b2e4f1560f7388f8157dd2c828211abbfad0e806 Mon Sep 17 00:00:00 2001
+From: Aaro Koskinen <aaro.koskinen@nsn.com>
+Date: Fri, 1 Nov 2013 17:06:04 +0200
+Subject: [PATCH] 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/
+---
+ arch/mips/cavium-octeon/octeon-platform.c | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+--- 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 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);
+ }