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-rw-r--r--cpu/ppc4xx/start.S4
-rw-r--r--include/configs/pcs440ep.h2
-rw-r--r--include/configs/yosemite.h2
3 files changed, 6 insertions, 2 deletions
diff --git a/cpu/ppc4xx/start.S b/cpu/ppc4xx/start.S
index 77c2aa4..0638024 100644
--- a/cpu/ppc4xx/start.S
+++ b/cpu/ppc4xx/start.S
@@ -110,6 +110,10 @@
# endif
#endif /* CFG_INIT_DCACHE_CS */
+#if (defined(CFG_INIT_RAM_DCACHE) && (CFG_INIT_RAM_END > (4 << 10)))
+#error Only 4k of init-ram is supported - please adjust CFG_INIT_RAM_END!
+#endif
+
#define function_prolog(func_name) .text; \
.align 2; \
.globl func_name; \
diff --git a/include/configs/pcs440ep.h b/include/configs/pcs440ep.h
index d66f4bd..07fc23e 100644
--- a/include/configs/pcs440ep.h
+++ b/include/configs/pcs440ep.h
@@ -66,7 +66,7 @@
*----------------------------------------------------------------------*/
#define CFG_INIT_RAM_DCACHE 1 /* d-cache as init ram */
#define CFG_INIT_RAM_ADDR 0x70000000 /* DCache */
-#define CFG_INIT_RAM_END (8 << 10)
+#define CFG_INIT_RAM_END (4 << 10)
#define CFG_GBL_DATA_SIZE 256 /* num bytes initial data*/
#define CFG_GBL_DATA_OFFSET (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE)
#define CFG_INIT_SP_OFFSET CFG_GBL_DATA_OFFSET
diff --git a/include/configs/yosemite.h b/include/configs/yosemite.h
index a8eeff9..4c86bc5 100644
--- a/include/configs/yosemite.h
+++ b/include/configs/yosemite.h
@@ -75,7 +75,7 @@
*----------------------------------------------------------------------*/
#define CFG_INIT_RAM_DCACHE 1 /* d-cache as init ram */
#define CFG_INIT_RAM_ADDR 0x70000000 /* DCache */
-#define CFG_INIT_RAM_END (8 << 10)
+#define CFG_INIT_RAM_END (4 << 10)
#define CFG_GBL_DATA_SIZE 256 /* num bytes initial data*/
#define CFG_GBL_DATA_OFFSET (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE)
#define CFG_INIT_SP_OFFSET CFG_GBL_DATA_OFFSET