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arm64: zynqmp: Add command for disabling loading other overlays

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Add command "zynqmp pmufw node close" to disable permission to load
additional pmufw config overlays. This command will make sure that any
other sw will ask for changing permission.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Link: https://lore.kernel.org/r/cfa5cc7909eb8deb23eb0f11c26954cbaddeb861.1642163135.git.michal.simek@xilinx.com
This commit is contained in:
Michal Simek
2022-01-14 13:25:38 +01:00
parent c750c6dbb2
commit fac46bc446
3 changed files with 36 additions and 0 deletions
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16
board/xilinx/zynqmp/cmds.c
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@@ -209,6 +209,19 @@ static int do_zynqmp_pmufw(struct cmd_tbl *cmdtp, int flag, int argc,
if (argc != cmdtp->maxargs)
return CMD_RET_USAGE;
if (!strncmp(argv[2], "node", 4)) {
u32 id;
if (!strncmp(argv[3], "close", 5))
return zynqmp_pmufw_config_close();
id = dectoul(argv[3], NULL);
printf("Enable permission for node ID %d\n", id);
return zynqmp_pmufw_node(id);
}
addr = hextoul(argv[2], NULL);
size = hextoul(argv[3], NULL);
@@ -416,6 +429,9 @@ static char zynqmp_help_text[] =
" lock(0)/split(1)\n"
#endif
"zynqmp pmufw address size - load PMU FW configuration object\n"
"zynqmp pmufw node <id> - load PMU FW configuration object\n"
"zynqmp pmufw node close - disable config object loading\n"
" node: keyword, id: NODE_ID in decimal format\n"
"zynqmp rsa srcaddr srclen mod exp rsaop -\n"
" Performs RSA encryption and RSA decryption on blob of data\n"
" at srcaddr and puts it back in srcaddr using modulus and\n"