brcm47xx: swap also early boot console if necessary.
authorHauke Mehrtens <hauke@hauke-m.de>
Wed, 13 Nov 2013 18:38:18 +0000 (18:38 +0000)
committerHauke Mehrtens <hauke@hauke-m.de>
Wed, 13 Nov 2013 18:38:18 +0000 (18:38 +0000)
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>
SVN-Revision: 38794

target/linux/brcm47xx/patches-3.10/082-MIPS-BCM47XX-add-EARLY_PRINTK_8250-support.patch
target/linux/brcm47xx/patches-3.10/830-huawei_e970_support.patch

index 744e35985e7b93d5950c83c167b7a415b95e30cc..42f5917ed335b789b2daace47a780ee3eae29e55 100644 (file)
@@ -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);
+               }
+       }
+ }
index 333b9e6c5b21ebd03d82246fd41e1912b770628e..2ff649dde590ee84db26cf182d54e5168040f0ab 100644 (file)
@@ -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
        }