po 15. 6. 2020 v 12:19 odesÃlatel Michal Simek michal.simek@xilinx.com napsal:
PMU FW has functionality to accept and reload configuration object at run time. The patch is adding support for doing it via u-boot prompt.
For example: tftpboot 100000 pmu_obj.bin zynqmp pmufw 100000 $filesize
The most of pmufw configurations don't allow config reloading. Also official Xilinx PMUFW doens't support this feature properly but the patch should open a way to call PMUFW with this request.
Here is example of PMUFW config fragment which enables config reloading.
/* SET CONFIG SECTION */ PM_CONFIG_SET_CONFIG_SECTION_ID, /* Section ID */ PM_CONFIG_IPI_PSU_CORTEXA53_0_MASK | PM_CONFIG_IPI_PSU_CORTEXR5_0_MASK | PM_CONFIG_IPI_PSU_CORTEXR5_1_MASK, /* Permissions to set config */
Signed-off-by: Michal Simek michal.simek@xilinx.com
board/xilinx/zynqmp/cmds.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+)
diff --git a/board/xilinx/zynqmp/cmds.c b/board/xilinx/zynqmp/cmds.c index 0f1f26986f21..c0d28a73e45d 100644 --- a/board/xilinx/zynqmp/cmds.c +++ b/board/xilinx/zynqmp/cmds.c @@ -130,8 +130,27 @@ static int do_zynqmp_tcm_init(struct cmd_tbl *cmdtp, int flag, int argc, } #endif
+static int do_zynqmp_pmufw(struct cmd_tbl *cmdtp, int flag, int argc,
char * const argv[])+{
u32 addr, size;if (argc != cmdtp->maxargs)return CMD_RET_USAGE;addr = simple_strtoul(argv[2], NULL, 16);size = simple_strtoul(argv[3], NULL, 16);flush_dcache_range((ulong)addr, (ulong)(addr + size));zynqmp_pmufw_load_config_object((const void *)(uintptr_t)addr,(size_t)size);return 0;+}
static struct cmd_tbl cmd_zynqmp_sub[] = { U_BOOT_CMD_MKENT(secure, 5, 0, do_zynqmp_verify_secure, "", ""),
U_BOOT_CMD_MKENT(pmufw, 4, 0, do_zynqmp_pmufw, "", ""), U_BOOT_CMD_MKENT(mmio_read, 3, 0, do_zynqmp_mmio_read, "", ""), U_BOOT_CMD_MKENT(mmio_write, 5, 0, do_zynqmp_mmio_write, "", ""),#ifdef CONFIG_DEFINE_TCM_OCM_MMAP @@ -184,6 +203,7 @@ static char zynqmp_help_text[] = " to be initialized. Supported modes will be\n" " lock(0)/split(1)\n" #endif
"zynqmp pmufw address size - load PMU FW configuration object\n" ;#endif
-- 2.27.0
Applied. M