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46 lines
1.5 KiB
Diff
46 lines
1.5 KiB
Diff
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From 25abc0cde3f4865910b380d68ffda0916b5870e7 Mon Sep 17 00:00:00 2001
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From: Hauke Mehrtens <hauke@hauke-m.de>
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Date: Sat, 27 Nov 2010 12:25:21 +0100
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Subject: [PATCH 4/6] MIPS: BCM47xx: Swap serial console if ttyS1 was specified.
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Some devices like the Netgear WGT634U are using ttyS1 for default
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console output. We should switch to that console if it was given in
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the kernel_args parameters.
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Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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---
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arch/mips/bcm47xx/setup.c | 16 ++++++++++++++++
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1 files changed, 16 insertions(+), 0 deletions(-)
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--- a/arch/mips/bcm47xx/setup.c
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+++ b/arch/mips/bcm47xx/setup.c
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@@ -169,12 +169,28 @@ static int bcm47xx_get_invariants(struct
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void __init plat_mem_setup(void)
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{
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int err;
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+ char buf[100];
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+ struct ssb_mipscore *mcore;
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err = ssb_bus_ssbbus_register(&ssb_bcm47xx, SSB_ENUM_BASE,
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bcm47xx_get_invariants);
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if (err)
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panic("Failed to initialize SSB bus (err %d)\n", err);
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+ mcore = &ssb_bcm47xx.mipscore;
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+ if (nvram_getenv("kernel_args", buf, sizeof(buf)) >= 0) {
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+ if (strstr(buf, "console=ttyS1")) {
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+ struct ssb_serial_port port;
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+
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+ printk(KERN_DEBUG "Swapping serial ports!\n");
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+ /* swap serial ports */
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+ memcpy(&port, &mcore->serial_ports[0], sizeof(port));
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+ memcpy(&mcore->serial_ports[0], &mcore->serial_ports[1],
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+ sizeof(port));
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+ memcpy(&mcore->serial_ports[1], &port, sizeof(port));
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+ }
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+ }
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+
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_machine_restart = bcm47xx_machine_restart;
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_machine_halt = bcm47xx_machine_halt;
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pm_power_off = bcm47xx_machine_halt;
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