bcm53xx: add restart support

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
SVN-Revision: 41912

diff --git a/target/linux/bcm53xx/patches-3.14/131-ARM-BCM5301X-add-restart-support.patch b/target/linux/bcm53xx/patches-3.14/131-ARM-BCM5301X-add-restart-support.patch
new file mode 100644 (file)
index 0000000..7fdbaa3
--- /dev/null
+++ b/target/linux/bcm53xx/patches-3.14/131-ARM-BCM5301X-add-restart-support.patch
@@ -0,0 +1,74 @@
+From 28b11a8b1258214b3b5d58bb6e3bbcb0fc9fd4fe Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
+Date: Thu, 31 Jul 2014 07:28:05 +0200
+Subject: [PATCH] ARM: BCM5301X: add restart support
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
+---
+ arch/arm/mach-bcm/bcm_5301x.c | 31 +++++++++++++++++++++++++++++++
+ 1 file changed, 31 insertions(+)
+
+diff --git a/arch/arm/mach-bcm/bcm_5301x.c b/arch/arm/mach-bcm/bcm_5301x.c
+index edff697..e349897 100644
+--- a/arch/arm/mach-bcm/bcm_5301x.c
++++ b/arch/arm/mach-bcm/bcm_5301x.c
+@@ -12,9 +12,26 @@
+ #include <asm/siginfo.h>
+ #include <asm/signal.h>
+ 
++#include <linux/bcma/bcma.h>
+ 
+ static bool first_fault = true;
+ 
++static struct bcma_bus *bcm5301x_get_bcma_bus(void)
++{
++      struct device_node *np;
++      struct platform_device *pdev;
++
++      np = of_find_compatible_node(NULL, NULL, "brcm,bus-aix");
++      if (!np)
++              return NULL;
++
++      pdev = of_find_device_by_node(np);
++      if (!pdev)
++              return NULL;
++
++      return platform_get_drvdata(pdev);
++}
++
+ static int bcm5301x_abort_handler(unsigned long addr, unsigned int fsr,
+                                struct pt_regs *regs)
+ {
+@@ -49,6 +66,19 @@ static void __init bcm5301x_dt_init(void)
+       of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
+ }
+ 
++static void bcm5301x_restart(enum reboot_mode mode, const char *cmd)
++{
++      struct bcma_bus *bus = bcm5301x_get_bcma_bus();
++
++      if (bus)
++              bcma_chipco_watchdog_timer_set(&bus->drv_cc, 1);
++      else
++              pr_warn("Unable to access bcma bus\n");
++
++      while (1)
++              ;
++}
++
+ static const char __initconst *bcm5301x_dt_compat[] = {
+       "brcm,bcm4708",
+       NULL,
+@@ -57,5 +87,6 @@ static const char __initconst *bcm5301x_dt_compat[] = {
+ DT_MACHINE_START(BCM5301X, "BCM5301X")
+       .init_early     = bcm5301x_init_early,
+       .init_machine   = bcm5301x_dt_init,
++      .restart        = bcm5301x_restart,
+       .dt_compat      = bcm5301x_dt_compat,
+ MACHINE_END
+-- 
+1.8.4.5
+