diff options
| -rw-r--r-- | board/xilinx/zynqmp/zynqmp.c | 17 | ||||
| -rw-r--r-- | include/command.h | 2 |
2 files changed, 19 insertions, 0 deletions
diff --git a/board/xilinx/zynqmp/zynqmp.c b/board/xilinx/zynqmp/zynqmp.c index ff0b3c75f5..b9825ddaa8 100644 --- a/board/xilinx/zynqmp/zynqmp.c +++ b/board/xilinx/zynqmp/zynqmp.c @@ -316,6 +316,23 @@ int zynq_board_read_rom_ethaddr(unsigned char *ethaddr) return 0; } +unsigned long do_go_exec(ulong (*entry)(int, char * const []), int argc, + char * const argv[]) +{ + int ret = 0; + + if (current_el() > 1) { + smp_kick_all_cpus(); + dcache_disable(); + armv8_switch_to_el1(0x0, 0, 0, 0, (unsigned long)entry, + ES_TO_AARCH64); + } else { + printf("FAIL: current EL is not above EL1\n"); + ret = EINVAL; + } + return ret; +} + #if !defined(CONFIG_SYS_SDRAM_BASE) && !defined(CONFIG_SYS_SDRAM_SIZE) int dram_init_banksize(void) { diff --git a/include/command.h b/include/command.h index 767cabb3df..56499b8ad5 100644 --- a/include/command.h +++ b/include/command.h @@ -111,6 +111,8 @@ extern int common_diskboot(cmd_tbl_t *cmdtp, const char *intf, int argc, extern int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]); extern int do_poweroff(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]); +extern unsigned long do_go_exec(ulong (*entry)(int, char * const []), int argc, + char * const argv[]); /* * Error codes that commands return to cmd_process(). We use the standard 0 * and 1 for success and failure, but add one more case - failure with a |