X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=arch%2Fmips%2Fralink%2Freset.c;h=ee117c4bc4a36cc6f974c5efc89751300a535108;hb=0ca9b67606f0ce984b5811b0830cfd7d143f6077;hp=ee26d45e48e787a6bd0768aeecd9050b43b01d7b;hpb=81ab9f6c5ff8565e4cba330e340a8979a10521d7;p=firefly-linux-kernel-4.4.55.git

diff --git a/arch/mips/ralink/reset.c b/arch/mips/ralink/reset.c
index ee26d45e48e7..ee117c4bc4a3 100644
--- a/arch/mips/ralink/reset.c
+++ b/arch/mips/ralink/reset.c
@@ -11,6 +11,7 @@
 #include <linux/pm.h>
 #include <linux/io.h>
 #include <linux/of.h>
+#include <linux/delay.h>
 #include <linux/reset-controller.h>
 
 #include <asm/reboot.h>
@@ -18,8 +19,10 @@
 #include <asm/mach-ralink/ralink_regs.h>
 
 /* Reset Control */
-#define SYSC_REG_RESET_CTRL     0x034
-#define RSTCTL_RESET_SYSTEM     BIT(0)
+#define SYSC_REG_RESET_CTRL	0x034
+
+#define RSTCTL_RESET_PCI	BIT(26)
+#define RSTCTL_RESET_SYSTEM	BIT(0)
 
 static int ralink_assert_device(struct reset_controller_dev *rcdev,
 				unsigned long id)
@@ -83,6 +86,11 @@ void ralink_rst_init(void)
 
 static void ralink_restart(char *command)
 {
+	if (IS_ENABLED(CONFIG_PCI)) {
+		rt_sysc_m32(0, RSTCTL_RESET_PCI, SYSC_REG_RESET_CTRL);
+		mdelay(50);
+	}
+
 	local_irq_disable();
 	rt_sysc_w32(RSTCTL_RESET_SYSTEM, SYSC_REG_RESET_CTRL);
 	unreachable();