diff options
Diffstat (limited to 'target/linux/ramips/patches-3.18/999-pci-reset.patch')
| -rw-r--r-- | target/linux/ramips/patches-3.18/999-pci-reset.patch | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/target/linux/ramips/patches-3.18/999-pci-reset.patch b/target/linux/ramips/patches-3.18/999-pci-reset.patch new file mode 100644 index 0000000000..6055731822 --- /dev/null +++ b/target/linux/ramips/patches-3.18/999-pci-reset.patch @@ -0,0 +1,35 @@ +--- 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(); |