diff options
| author | Michal Simek <michal.simek@xilinx.com> | 2020-04-27 11:26:31 +0200 |
|---|---|---|
| committer | Michal Simek <michal.simek@xilinx.com> | 2020-06-25 10:08:04 +0200 |
| commit | e20d88bffaa4292f2fec9e03eac91154429c6482 (patch) | |
| tree | 0d901027fe6018bbc3f0239b8737fb05659c4dd3 /board/xilinx | |
| parent | 3ccea69fc495a8e6c529d6c647af4da3775dcb87 (diff) | |
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')
| -rw-r--r-- | board/xilinx/zynqmp/cmds.c | 20 |
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 |