MX31: Add NAND SPL for i.MX31.
This patch adds the NAND SPL framework needed to boot i.MX31 boards
from NAND.
It has been tested on a i.MX31 PDK board with large page NAND. Small
page NANDs should work as well, but this has not been tested.
Note: The i.MX31 NFC uses a non-standard layout for large page NANDs,
whether this is compatible with a particular setup depends on how
the NAND device is programmed by the flash programmer (e.g. JTAG
debugger).
The patch is based on the work by Maxim Artamonov.
Signed-off-by: Maxim Artamonov <scn1874@yandex.ru>
Signed-off-by: Magnus Lilja <lilja.magnus@gmail.com>
diff --git a/cpu/arm1136/start.S b/cpu/arm1136/start.S
index 28cb5fd..957f438 100644
--- a/cpu/arm1136/start.S
+++ b/cpu/arm1136/start.S
@@ -200,12 +200,15 @@
ldr pc, _start_armboot
+#ifdef CONFIG_NAND_SPL
+_start_armboot: .word nand_boot
+#else
#ifdef CONFIG_ONENAND_IPL
_start_armboot: .word start_oneboot
#else
_start_armboot: .word start_armboot
-#endif
-
+#endif /* CONFIG_ONENAND_IPL */
+#endif /* CONFIG_NAND_SPL */
/*
*************************************************************************
@@ -217,6 +220,7 @@
*
*************************************************************************
*/
+#ifndef CONFIG_SKIP_LOWLEVEL_INIT
cpu_init_crit:
/*
* flush v4 I/D caches
@@ -243,6 +247,7 @@
bl lowlevel_init /* go setup pll,mux,memory */
mov lr, ip /* restore link */
mov pc, lr /* back to my caller */
+#endif /* CONFIG_SKIP_LOWLEVEL_INIT */
#ifndef CONFIG_PRELOADER
/*
