brcm47xx: prepare brcm47xx patches for sending to mainline.

SVN-Revision: 22296

1 files changed, 81 insertions, 0 deletions

diff --git a/target/linux/brcm47xx/patches-2.6.34/014-MIPS-BCM47xx-Setup-and-register-serial-early.patch b/target/linux/brcm47xx/patches-2.6.34/014-MIPS-BCM47xx-Setup-and-register-serial-early.patch
new file mode 100644
index 0000000..cd35d1c
--- /dev/null
+++ b/target/linux/brcm47xx/patches-2.6.34/014-MIPS-BCM47xx-Setup-and-register-serial-early.patch
@@ -0,0 +1,81 @@
+From 4c6a515310f29c89f25a54a115cde905f97330f8 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 4/5] 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.
+
+Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+---
+ arch/mips/Kconfig         |    1 -
+ arch/mips/bcm47xx/setup.c |   36 +++++++++++++++++++++++++++++++++++-
+ 2 files changed, 35 insertions(+), 2 deletions(-)
+
+--- a/arch/mips/Kconfig
++++ b/arch/mips/Kconfig
+@@ -65,7 +65,6 @@ config BCM47XX
+ 	select SSB_B43_PCI_BRIDGE if PCI
+ 	select SSB_PCICORE_HOSTMODE if PCI
+ 	select GENERIC_GPIO
+-	select SYS_HAS_EARLY_PRINTK
+ 	select CFE
+ 	help
+ 	 Support for BCM47XX based boards
+--- a/arch/mips/bcm47xx/setup.c
++++ b/arch/mips/bcm47xx/setup.c
+@@ -28,6 +28,8 @@
+ #include <linux/types.h>
+ #include <linux/ssb/ssb.h>
+ #include <linux/ssb/ssb_embedded.h>
++#include <linux/serial.h>
++#include <linux/serial_8250.h>
+ #include <asm/bootinfo.h>
+ #include <asm/reboot.h>
+ #include <asm/time.h>
+@@ -181,12 +183,44 @@ static int bcm47xx_get_invariants(struct
+ 
+ void __init plat_mem_setup(void)
+ {
+-	int err;
++	int i, err;
++	char buf[100];
++	struct ssb_mipscore *mcore;
+ 
+ 	err = ssb_bus_ssbbus_register(&ssb_bcm47xx, SSB_ENUM_BASE,
+ 				      bcm47xx_get_invariants);
+ 	if (err)
+ 		panic("Failed to initialize SSB bus (err %d)\n", err);
++	mcore = &ssb_bcm47xx.mipscore;
++
++	nvram_getenv("kernel_args", buf, sizeof(buf));
++	if (!strncmp(buf, "console=ttyS1", 13)) {
++		struct ssb_serial_port port;
++
++		printk("Swapping serial ports!\n");
++		/* swap serial ports */
++		memcpy(&port, &mcore->serial_ports[0], sizeof(port));
++		memcpy(&mcore->serial_ports[0], &mcore->serial_ports[1], sizeof(port));
++		memcpy(&mcore->serial_ports[1], &port, sizeof(port));
++	}
++
++	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("Serial init done.\n");
+ 
+ 	_machine_restart = bcm47xx_machine_restart;
+ 	_machine_halt = bcm47xx_machine_halt;