brcm47xx: swap also early boot console if necessary.

Some devices are using tty1 as the default console, also swap the early 
boot console in such case. This is needed for the WGT634U.

Thank you Russell for reporting this.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@38794 3c298f89-4303-0410-b956-a3cf2f4a3e73

2 files changed, 49 insertions, 2 deletions

diff --git a/target/linux/brcm47xx/patches-3.10/082-MIPS-BCM47XX-add-EARLY_PRINTK_8250-support.patch b/target/linux/brcm47xx/patches-3.10/082-MIPS-BCM47XX-add-EARLY_PRINTK_8250-support.patch
index 744e35985e..42f5917ed3 100644
--- a/target/linux/brcm47xx/patches-3.10/082-MIPS-BCM47XX-add-EARLY_PRINTK_8250-support.patch
+++ b/target/linux/brcm47xx/patches-3.10/082-MIPS-BCM47XX-add-EARLY_PRINTK_8250-support.patch
@@ -51,3 +51,50 @@ Date:   Thu Sep 19 22:48:35 2013 +0200
  }
  
  void __init prom_free_prom_memory(void)
+--- a/arch/mips/bcm47xx/setup.c
++++ b/arch/mips/bcm47xx/setup.c
+@@ -123,6 +123,28 @@ static int bcm47xx_get_invariants(struct
+ 	return 0;
+ }
+ 
++/*
++ * This is the second serial on the chip common core, it is at this position
++ * for sb (ssb) and ai (bcma) bus.
++ */
++#define BCM47XX_SERIAL1_ADDR (SSB_ENUM_BASE + SSB_CHIPCO_UART1_DATA)
++
++static void __init bcm47xx_swap_serial_ssb(struct ssb_mipscore *mcore)
++{
++	struct ssb_serial_port port;
++
++	printk(KERN_INFO "Swapping serial ports\n");
++
++	setup_8250_early_printk_port(CKSEG1ADDR(BCM47XX_SERIAL1_ADDR), 0, 0);
++
++	/* 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));
++
++	printk(KERN_INFO "Serial port were Swapped\n");
++}
++
+ static void __init bcm47xx_register_ssb(void)
+ {
+ 	int err;
+@@ -142,14 +164,7 @@ static void __init bcm47xx_register_ssb(
+ 	mcore = &bcm47xx_bus.ssb.mipscore;
+ 	if (bcm47xx_nvram_getenv("kernel_args", buf, sizeof(buf)) >= 0) {
+ 		if (strstr(buf, "console=ttyS1")) {
+-			struct ssb_serial_port port;
+-
+-			printk(KERN_DEBUG "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));
++			bcm47xx_swap_serial_ssb(mcore);
+ 		}
+ 	}
+ }
diff --git a/target/linux/brcm47xx/patches-3.10/830-huawei_e970_support.patch b/target/linux/brcm47xx/patches-3.10/830-huawei_e970_support.patch
index 333b9e6c5b..2ff649dde5 100644
--- a/target/linux/brcm47xx/patches-3.10/830-huawei_e970_support.patch
+++ b/target/linux/brcm47xx/patches-3.10/830-huawei_e970_support.patch
@@ -8,7 +8,7 @@
  #include <asm/bootinfo.h>
  #include <asm/prom.h>
  #include <asm/reboot.h>
-@@ -229,6 +230,33 @@ void __init plat_mem_setup(void)
+@@ -244,6 +245,33 @@ void __init plat_mem_setup(void)
  	mips_set_machine_name(bcm47xx_board_get_name());
  }
  
@@ -42,7 +42,7 @@
  static int __init bcm47xx_register_bus_complete(void)
  {
  	switch (bcm47xx_bus_type) {
-@@ -243,6 +271,8 @@ static int __init bcm47xx_register_bus_c
+@@ -258,6 +286,8 @@ static int __init bcm47xx_register_bus_c
  		break;
  #endif
  	}