|
@@ -225,6 +225,10 @@ u32 fsp_get_usable_lowmem_top(const void *hob_list)
|
|
|
struct hob_res_desc *res_desc;
|
|
|
phys_addr_t phys_start;
|
|
|
u32 top;
|
|
|
+#ifdef CONFIG_FSP_BROKEN_HOB
|
|
|
+ struct hob_mem_alloc *res_mem;
|
|
|
+ phys_addr_t mem_base = 0;
|
|
|
+#endif
|
|
|
|
|
|
/* Get the HOB list for processing */
|
|
|
hdr = hob_list;
|
|
@@ -242,9 +246,38 @@ u32 fsp_get_usable_lowmem_top(const void *hob_list)
|
|
|
top += (u32)(res_desc->len);
|
|
|
}
|
|
|
}
|
|
|
+
|
|
|
+#ifdef CONFIG_FSP_BROKEN_HOB
|
|
|
+ /*
|
|
|
+ * Find out the lowest memory base address allocated by FSP
|
|
|
+ * for the boot service data
|
|
|
+ */
|
|
|
+ if (hdr->type == HOB_TYPE_MEM_ALLOC) {
|
|
|
+ res_mem = (struct hob_mem_alloc *)hdr;
|
|
|
+ if (!mem_base)
|
|
|
+ mem_base = res_mem->mem_base;
|
|
|
+ if (res_mem->mem_base < mem_base)
|
|
|
+ mem_base = res_mem->mem_base;
|
|
|
+ }
|
|
|
+#endif
|
|
|
+
|
|
|
hdr = get_next_hob(hdr);
|
|
|
}
|
|
|
|
|
|
+#ifdef CONFIG_FSP_BROKEN_HOB
|
|
|
+ /*
|
|
|
+ * Check whether the memory top address is below the FSP HOB list.
|
|
|
+ * If not, use the lowest memory base address allocated by FSP as
|
|
|
+ * the memory top address. This is to prevent U-Boot relocation
|
|
|
+ * overwrites the important boot service data which is used by FSP,
|
|
|
+ * otherwise the subsequent call to fsp_notify() will fail.
|
|
|
+ */
|
|
|
+ if (top > (u32)hob_list) {
|
|
|
+ debug("Adjust memory top address due to a buggy FSP\n");
|
|
|
+ top = (u32)mem_base;
|
|
|
+ }
|
|
|
+#endif
|
|
|
+
|
|
|
return top;
|
|
|
}
|
|
|
|