po 15. 6. 2020 v 12:19 odesílatel 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