/**
* (C) Copyright 2014, Cavium Inc.
+ * (C) Copyright 2017, Xilinx Inc.
*
* SPDX-License-Identifier: GPL-2.0+
**/
#include <asm-offsets.h>
#include <config.h>
+#include <efi_loader.h>
#include <version.h>
#include <asm/macro.h>
#include <asm/psci.h>
* x0~x7: input arguments
* x0~x3: output arguments
*/
-static void hvc_call(struct pt_regs *args)
+static void __efi_runtime hvc_call(struct pt_regs *args)
{
asm volatile(
"ldr x0, %0\n"
* x0~x3: output arguments
*/
-void smc_call(struct pt_regs *args)
+void __efi_runtime smc_call(struct pt_regs *args)
{
asm volatile(
"ldr x0, %0\n"
* use PSCI on U-Boot running below a hypervisor, please detect
* this and set the flag accordingly.
*/
-static const bool use_smc_for_psci = true;
+static const __efi_runtime_data bool use_smc_for_psci = true;
-void __noreturn psci_system_reset(void)
+void __noreturn __efi_runtime psci_system_reset(void)
{
struct pt_regs regs;
while (1)
;
}
+
+void __noreturn __efi_runtime psci_system_off(void)
+{
+ struct pt_regs regs;
+
+ regs.regs[0] = ARM_PSCI_0_2_FN_SYSTEM_OFF;
+
+ if (use_smc_for_psci)
+ smc_call(®s);
+ else
+ hvc_call(®s);
+
+ while (1)
+ ;
+}
+
+#ifdef CONFIG_CMD_POWEROFF
+int do_poweroff(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ puts("poweroff ...\n");
+
+ udelay(50000); /* wait 50 ms */
+
+ disable_interrupts();
+
+ psci_system_off();
+
+ /*NOTREACHED*/
+ return 0;
+}
+#endif
+
+#ifdef CONFIG_PSCI_RESET
+void reset_misc(void)
+{
+ psci_system_reset();
+}
+
+#ifdef CONFIG_EFI_LOADER
+void __efi_runtime EFIAPI efi_reset_system(
+ enum efi_reset_type reset_type,
+ efi_status_t reset_status,
+ unsigned long data_size, void *reset_data)
+{
+ switch (reset_type) {
+ case EFI_RESET_COLD:
+ case EFI_RESET_WARM:
+ psci_system_reset();
+ break;
+ case EFI_RESET_SHUTDOWN:
+ psci_system_off();
+ break;
+ }
+
+ while (1) { }
+}
+#endif /* CONFIG_EFI_LOADER */
+#endif /* CONFIG_PSCI_RESET */