SPL: Port SPL framework to powerpc
This patch enables the SPL framework to be used on powerpc platforms
and not only ARM.
timer_init() does not exist on PPC systems. The timer (decrementer) is
initialized and enabled in interrupt_init() here. And currently
interrupt_init() is called after relocation to SDRAM. Since the only
powerpc SPL implementation (a3m071) doesn't need a timer, let's remove
this timer_init() call for PPC systems.
Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/common/spl/spl.c b/common/spl/spl.c
index f068abd..ff9ba7b 100644
--- a/common/spl/spl.c
+++ b/common/spl/spl.c
@@ -74,6 +74,16 @@
}
#endif
+/*
+ * Weak default function for board specific cleanup/preparation before
+ * Linux boot. Some boards/platforms might not need it, so just provide
+ * an empty stub here.
+ */
+__weak void spl_board_prepare_for_linux(void)
+{
+ /* Nothing to do! */
+}
+
void spl_parse_image_header(const struct image_header *header)
{
u32 header_size = sizeof(struct image_header);
@@ -155,7 +165,13 @@
CONFIG_SYS_SPL_MALLOC_SIZE);
#endif
+#ifndef CONFIG_PPC
+ /*
+ * timer_init() does not exist on PPC systems. The timer is initialized
+ * and enabled (decrementer) in interrupt_init() here.
+ */
timer_init();
+#endif
#ifdef CONFIG_SPL_BOARD_INIT
spl_board_init();