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Merge changes from topic "xlnx_mmap_dynamic_dtb" into integration

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* changes:
  fix(xilinx): dcache flush for dtb region
  fix(xilinx): dynamic mmap region for dtb
This commit is contained in:
Manish V Badarkhe 2023-09-15 08:44:42 +02:00 • committed by TrustedFirmware Code Review
commit 44a267b59e
3 changed files with 30 additions and 2 deletions
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24
plat/xilinx/common/plat_fdt.c
View file

@ -8,6 +8,7 @@
#include <common/fdt_fixup.h>
#include <common/fdt_wrappers.h>
#include <libfdt.h>
#include <lib/xlat_tables/xlat_tables_v2.h>
#include <plat_fdt.h>
#include <platform_def.h>
@ -24,6 +25,17 @@ void prepare_dtb(void)
if (IS_TFA_IN_OCM(BL31_BASE))
return;
#if defined(PLAT_XLAT_TABLES_DYNAMIC)
ret = mmap_add_dynamic_region((unsigned long long)dtb,
(uintptr_t)dtb,
XILINX_OF_BOARD_DTB_MAX_SIZE,
MT_MEMORY | MT_RW | MT_NS);
if (ret != 0) {
WARN("Failed to add dynamic region for dtb: error %d\n", ret);
return;
}
#endif
/* Return if no device tree is detected */
if (fdt_check_header(dtb) != 0) {
NOTICE("Can't read DT at %p\n", dtb);
@ -48,6 +60,16 @@ void prepare_dtb(void)
return;
}
clean_dcache_range((uintptr_t)dtb, fdt_blob_size(dtb));
flush_dcache_range((uintptr_t)dtb, fdt_blob_size(dtb));
#if defined(PLAT_XLAT_TABLES_DYNAMIC)
ret = mmap_remove_dynamic_region((uintptr_t)dtb,
XILINX_OF_BOARD_DTB_MAX_SIZE);
if (ret != 0) {
WARN("Failed to remove dynamic region for dtb: error %d\n", ret);
return;
}
#endif
INFO("Changed device tree to advertise PSCI and reserved memories.\n");
}

3
plat/xilinx/versal/bl31_versal_setup.c
View file

@ -224,7 +224,8 @@ void bl31_plat_arch_setup(void)
plat_arm_interconnect_enter_coherency();
const mmap_region_t bl_regions[] = {
#if (defined(XILINX_OF_BOARD_DTB_ADDR) && !IS_TFA_IN_OCM(BL31_BASE))
#if (defined(XILINX_OF_BOARD_DTB_ADDR) && !IS_TFA_IN_OCM(BL31_BASE) && \
(!defined(PLAT_XLAT_TABLES_DYNAMIC)))
MAP_REGION_FLAT(XILINX_OF_BOARD_DTB_ADDR, XILINX_OF_BOARD_DTB_MAX_SIZE,
MT_MEMORY | MT_RW | MT_NS),
#endif

5
plat/xilinx/versal/platform.mk
View file

@ -49,6 +49,11 @@ ifdef XILINX_OF_BOARD_DTB_ADDR
$(eval $(call add_define,XILINX_OF_BOARD_DTB_ADDR))
endif
PLAT_XLAT_TABLES_DYNAMIC := 0
ifeq (${PLAT_XLAT_TABLES_DYNAMIC},1)
$(eval $(call add_define,PLAT_XLAT_TABLES_DYNAMIC))
endif
PLAT_INCLUDES := -Iinclude/plat/arm/common/ \
-Iplat/xilinx/common/include/ \
-Iplat/xilinx/common/ipi_mailbox_service/ \