armv8: Add tlb_allocated to arch global data
When secure ram is used, MMU tables have to be put into secure ram.
To use common MMU code, gd->arch.tlb_addr will be used to host TLB
entry pointer. To save allocated memory for later use, tlb_allocated
variable is added to global data structure.
Signed-off-by: York Sun <york.sun@nxp.com>
diff --git a/arch/arm/include/asm/global_data.h b/arch/arm/include/asm/global_data.h
index 2d76cd4..1055017 100644
--- a/arch/arm/include/asm/global_data.h
+++ b/arch/arm/include/asm/global_data.h
@@ -57,6 +57,7 @@
* 0x2 maintained
*/
phys_addr_t secure_ram;
+ unsigned long tlb_allocated;
#endif
#ifdef CONFIG_OMAP_COMMON
diff --git a/common/board_f.c b/common/board_f.c
index 0fc96bd..a1138b0 100644
--- a/common/board_f.c
+++ b/common/board_f.c
@@ -432,6 +432,15 @@
gd->arch.tlb_addr = gd->relocaddr;
debug("TLB table from %08lx to %08lx\n", gd->arch.tlb_addr,
gd->arch.tlb_addr + gd->arch.tlb_size);
+
+#ifdef CONFIG_SYS_MEM_RESERVE_SECURE
+ /*
+ * Record allocated tlb_addr in case gd->tlb_addr to be overwritten
+ * with location within secure ram.
+ */
+ gd->arch.tlb_allocated = gd->arch.tlb_addr;
+#endif
+
return 0;
}
#endif