Add support for fixing up DM firmware reserved memory in the kernel device tree for K3 SoCs that use separate DM firmware.
The fixup uses the CONFIG_K3_DM_FW_RESERVED_ADDR and CONFIG_K3_DM_FW_RESERVED_SIZE Kconfig options to update the reserved-memory node with the correct DM firmware carveout. Note that the fixup needs DM reserved memory node is to be renamed in dts. Example memory@9c900000 → dm@9c900000 Signed-off-by: Paresh Bhagat <[email protected]> --- arch/arm/mach-k3/common_fdt.c | 20 +++++++++++++++++--- 1 file changed, 17 insertions(+), 3 deletions(-) diff --git a/arch/arm/mach-k3/common_fdt.c b/arch/arm/mach-k3/common_fdt.c index 4b833f5fabe..18f30e9d052 100644 --- a/arch/arm/mach-k3/common_fdt.c +++ b/arch/arm/mach-k3/common_fdt.c @@ -160,9 +160,23 @@ int fdt_fixup_reserved(void *blob) if (ret) return ret; - return fdt_fixup_reserved_memory(blob, "optee", - CONFIG_K3_OPTEE_LOAD_ADDR, - CONFIG_K3_OPTEE_RESERVED_SIZE); + ret = fdt_fixup_reserved_memory(blob, "optee", + CONFIG_K3_OPTEE_LOAD_ADDR, + CONFIG_K3_OPTEE_RESERVED_SIZE); + + if (ret) + return ret; + +#if defined(CONFIG_K3_DM_FW_RESERVED_ADDR) && defined(CONFIG_K3_DM_FW_RESERVED_SIZE) + ret = fdt_fixup_reserved_memory(blob, "dm", + CONFIG_K3_DM_FW_RESERVED_ADDR, + CONFIG_K3_DM_FW_RESERVED_SIZE); + + if (ret) + return ret; +#endif + + return 0; } static int fdt_fixup_critical_trips(void *blob, int zoneoffset, int maxc) -- 2.34.1
