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70 lines
1.8 KiB
Diff
70 lines
1.8 KiB
Diff
From 9be402f069cc259ad5795b77567d66c4e7f6bef6 Mon Sep 17 00:00:00 2001
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From: Hauke Mehrtens <hauke@hauke-m.de>
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Date: Sun, 18 Jul 2010 14:59:24 +0200
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Subject: [PATCH 4/6] MIPS: BCM47xx: Setup and register serial early
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Swap the first and second serial if console=ttyS1 was set.
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Set it up and register it for early serial support.
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This patch has been in OpenWRT for a long time.
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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 | 39 ++++++++++++++++++++++++++++++++++++++-
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1 files changed, 38 insertions(+), 1 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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@@ -32,6 +32,8 @@
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#include <linux/ssb/ssb_embedded.h>
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#include <linux/bcma/bcma_soc.h>
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#include <linux/platform_device.h>
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+#include <linux/serial.h>
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+#include <linux/serial_8250.h>
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#include <asm/bootinfo.h>
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#include <asm/reboot.h>
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#include <asm/time.h>
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@@ -279,6 +281,31 @@ static int bcm47xx_get_invariants(struct
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return 0;
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}
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+#ifdef CONFIG_SERIAL_8250
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+static void __init bcm47xx_early_serial_setup(struct ssb_mipscore *mcore)
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+{
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+ int i;
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+
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+ for (i = 0; i < mcore->nr_serial_ports; i++) {
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+ struct ssb_serial_port *port = &(mcore->serial_ports[i]);
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+ struct uart_port s;
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+
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+ memset(&s, 0, sizeof(s));
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+ s.line = i;
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+ s.mapbase = (unsigned int) port->regs;
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+ s.membase = port->regs;
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+ s.irq = port->irq + 2;
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+ s.uartclk = port->baud_base;
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+ s.flags = UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ;
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+ s.iotype = SERIAL_IO_MEM;
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+ s.regshift = port->reg_shift;
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+
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+ early_serial_setup(&s);
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+ }
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+ printk(KERN_DEBUG "Serial init done.\n");
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+}
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+#endif
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+
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static void __init bcm47xx_register_ssb(void)
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{
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int err;
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@@ -311,6 +338,10 @@ static void __init bcm47xx_register_ssb(
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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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+#ifdef CONFIG_SERIAL_8250
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+ bcm47xx_early_serial_setup(mcore);
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+#endif
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}
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#endif
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