target/linux/ramips/patches-3.14/999-pci-reset.patch

   1 Index: linux-3.14.18/arch/mips/ralink/reset.c
   2 ===================================================================
   3 --- linux-3.14.18.orig/arch/mips/ralink/reset.c 2014-11-23 00:32:23.268612766 +0100
   4 +++ linux-3.14.18/arch/mips/ralink/reset.c      2014-11-23 01:13:46.850117349 +0100
   5 @@ -18,8 +18,10 @@
   6  #include <asm/mach-ralink/ralink_regs.h>
   7
   8  /* Reset Control */
   9 -#define SYSC_REG_RESET_CTRL     0x034
  10 -#define RSTCTL_RESET_SYSTEM     BIT(0)
  11 +#define SYSC_REG_RESET_CTRL    0x034
  12 +
  13 +#define RSTCTL_RESET_PCI       BIT(26)
  14 +#define RSTCTL_RESET_SYSTEM    BIT(0)
  15
  16  static int ralink_assert_device(struct reset_controller_dev *rcdev,
  17                                 unsigned long id)
  18 @@ -83,6 +85,11 @@
  19
  20  static void ralink_restart(char *command)
  21  {
  22 +       if (IS_ENABLED(CONFIG_PCI)) {
  23 +               rt_sysc_m32(0, RSTCTL_RESET_PCI, SYSC_REG_RESET_CTRL);
  24 +               mdelay(50);
  25 +       }
  26 +
  27         local_irq_disable();
  28         rt_sysc_w32(RSTCTL_RESET_SYSTEM, SYSC_REG_RESET_CTRL);
  29         unreachable();