openwrtv3/target/linux/brcm47xx/patches-3.2/114-MIPS-BCM47xx-Setup-and-register-serial-early.patch
Hauke Mehrtens 7fee567dc0 brcm47xx: move and rename the patches
The patches are now grouped by the part what they are doing and are using three digest numbers.

This does not remove or adds anything

SVN-Revision: 30942
2012-03-14 21:48:23 +00:00

69 lines
1.8 KiB
Diff

From 9be402f069cc259ad5795b77567d66c4e7f6bef6 Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Sun, 18 Jul 2010 14:59:24 +0200
Subject: [PATCH 4/6] MIPS: BCM47xx: Setup and register serial early
Swap the first and second serial if console=ttyS1 was set.
Set it up and register it for early serial support.
This patch has been in OpenWRT for a long time.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
---
arch/mips/bcm47xx/setup.c | 39 ++++++++++++++++++++++++++++++++++++++-
1 files changed, 38 insertions(+), 1 deletions(-)
--- a/arch/mips/bcm47xx/setup.c
+++ b/arch/mips/bcm47xx/setup.c
@@ -32,6 +32,8 @@
#include <linux/ssb/ssb_embedded.h>
#include <linux/bcma/bcma_soc.h>
#include <linux/platform_device.h>
+#include <linux/serial.h>
+#include <linux/serial_8250.h>
#include <asm/bootinfo.h>
#include <asm/reboot.h>
#include <asm/time.h>
@@ -279,6 +281,31 @@ static int bcm47xx_get_invariants(struct
return 0;
}
+#ifdef CONFIG_SERIAL_8250
+static void __init bcm47xx_early_serial_setup(struct ssb_mipscore *mcore)
+{
+ int i;
+
+ for (i = 0; i < mcore->nr_serial_ports; i++) {
+ struct ssb_serial_port *port = &(mcore->serial_ports[i]);
+ struct uart_port s;
+
+ memset(&s, 0, sizeof(s));
+ s.line = i;
+ s.mapbase = (unsigned int) port->regs;
+ s.membase = port->regs;
+ s.irq = port->irq + 2;
+ s.uartclk = port->baud_base;
+ s.flags = UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ;
+ s.iotype = SERIAL_IO_MEM;
+ s.regshift = port->reg_shift;
+
+ early_serial_setup(&s);
+ }
+ printk(KERN_DEBUG "Serial init done.\n");
+}
+#endif
+
static void __init bcm47xx_register_ssb(void)
{
int err;
@@ -311,6 +338,10 @@ static void __init bcm47xx_register_ssb(
memcpy(&mcore->serial_ports[1], &port, sizeof(port));
}
}
+
+#ifdef CONFIG_SERIAL_8250
+ bcm47xx_early_serial_setup(mcore);
+#endif
}
#endif