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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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19
drivers/firmware/firmware-zynqmp.c
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@@ -49,6 +49,25 @@ static unsigned int xpm_configobject[] = {
PM_CONFIG_IPI_PSU_CORTEXR5_1_MASK, /* IPI Mask */
};
static unsigned int xpm_configobject_close[] = {
/**********************************************************************/
/* HEADER */
2, /* Number of remaining words in the header */
1, /* Number of sections included in config object */
PM_CONFIG_OBJECT_TYPE_OVERLAY, /* Type of Config object as overlay */
/**********************************************************************/
/* SET CONFIG SECTION */
PM_CONFIG_SET_CONFIG_SECTION_ID,
0U, /* Loading permission to Overlay config object */
};
int zynqmp_pmufw_config_close(void)
{
zynqmp_pmufw_load_config_object(xpm_configobject_close,
sizeof(xpm_configobject_close));
return 0;
}
int zynqmp_pmufw_node(u32 id)
{
/* Record power domain id */