| Message ID | 5a672cf6e264dce677b41607d3263e3cce9b0a95.1592216355.git.michal.simek@xilinx.com |
|---|---|
| State | Accepted |
| Commit | e20d88bffaa4292f2fec9e03eac91154429c6482 |
| Delegated to: | Michal Simek |
| Headers | show |
| Series | xilinx: zynqmp: Enable pmufw config reloading | expand |
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
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
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(+)