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authorMichal Simek <michal.simek@xilinx.com>2020-04-27 11:26:31 +0200
committerMichal Simek <michal.simek@xilinx.com>2020-06-25 10:08:04 +0200
commite20d88bffaa4292f2fec9e03eac91154429c6482 (patch)
tree0d901027fe6018bbc3f0239b8737fb05659c4dd3 /board/xilinx/zynqmp
parent3ccea69fc495a8e6c529d6c647af4da3775dcb87 (diff)
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xilinx: zynqmp: Enable pmufw config reloading
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>
Diffstat (limited to 'board/xilinx/zynqmp')
-rw-r--r--board/xilinx/zynqmp/cmds.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/board/xilinx/zynqmp/cmds.c b/board/xilinx/zynqmp/cmds.c
index 0f1f26986f..c0d28a73e4 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