ppc4xx: Add lcd4_lwmon5 support
This patch adds the fast booting LWMON5 derivat "lcd4_lwmon5".
Its a stripped down version of the full blown lwmon5 support,
without ECC, USB, POST and some other stuff. It used the newly
introduced SPL infrastrucure for SPL from NOR flash booting
on the PPC4xx.
By setting the environment variable "boot_os" to "yes", Linux
will be started from the SPL version. If not, the "normal"
U-Boot will be started.
Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/board/lwmon5/sdram.c b/board/lwmon5/sdram.c
index b64b35a..78b8fbc 100644
--- a/board/lwmon5/sdram.c
+++ b/board/lwmon5/sdram.c
@@ -6,7 +6,7 @@
* Alain Saurel, AMCC/IBM, alain.saurel@fr.ibm.com
* Robert Snyder, AMCC/IBM, rob.snyder@fr.ibm.com
*
- * (C) Copyright 2007-2008
+ * (C) Copyright 2007-2013
* Stefan Roese, DENX Software Engineering, sr@denx.de.
*
* This program is free software; you can redistribute it and/or
@@ -160,6 +160,7 @@
************************************************************************/
phys_size_t initdram (int board_type)
{
+#if defined(CONFIG_SPL_BUILD) || !defined(CONFIG_LCD4_LWMON5)
/* CL=4 */
mtsdram(DDR0_02, 0x00000000);
@@ -253,6 +254,7 @@
* exceptions are enabled.
*/
set_mcsr(get_mcsr());
+#endif /* CONFIG_SPL_BUILD */
return (CONFIG_SYS_MBYTES_SDRAM << 20);
}