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Index: sys/arm64/rockchip/rk805.c
===================================================================
--- sys/arm64/rockchip/rk805.c
+++ sys/arm64/rockchip/rk805.c
@@ -31,8 +31,10 @@
#include <sys/param.h>
#include <sys/bus.h>
#include <sys/clock.h>
+#include <sys/eventhandler.h>
#include <sys/kernel.h>
#include <sys/module.h>
+#include <sys/reboot.h>
#include <sys/mutex.h>
#include <sys/rman.h>
#include <machine/bus.h>
@@ -850,6 +852,28 @@
return (error);
}
+static void
+rk805_shutdown(void *pdev, int howto)
+{
+ device_t dev;
+ int error;
+ uint8_t val;
+
+ if ((howto & RB_POWEROFF) == 0)
+ return;
+
+ dev = (device_t)pdev;
+ if (bootverbose)
+ device_printf(dev, "shutdown...\n");
+ error = rk805_read(dev, RK805_DEV_CTRL, &val, 1);
+ if (error == 0) {
+ val |= RK805_DEV_CTRL_OFF;
+ error = rk805_write(dev, RK805_DEV_CTRL, &val, 1);
+ }
+ if (error != 0)
+ device_printf(dev, "... failed\n");
+}
+
static int
rk805_attach(device_t dev)
{
@@ -913,6 +937,13 @@
}
}
+ if (OF_hasprop(ofw_bus_get_node(dev),
+ "rockchip,system-power-controller")) {
+ /* The priority is chosen to override PSCI and EFI shutdown. */
+ EVENTHANDLER_REGISTER(shutdown_final, rk805_shutdown, dev,
+ SHUTDOWN_PRI_LAST - 2);
+ }
+
return (0);
}
Index: sys/arm64/rockchip/rk805reg.h
===================================================================
--- sys/arm64/rockchip/rk805reg.h
+++ sys/arm64/rockchip/rk805reg.h
@@ -93,6 +93,10 @@
#define RK808_LDO8_ON_VSEL 0x49
#define RK808_LDO8_SLEEP_VSEL 0x4A
+#define RK805_DEV_CTRL 0x4B
+#define RK805_DEV_CTRL_OFF (1 << 0)
+#define RK805_DEV_CTRL_SLP (1 << 1)
+
enum rk805_regulator {
RK805_DCDC1 = 0,
RK805_DCDC2,

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