ppc4xx: Add device tree support to AMCC Yosemite

Add support for booting with a device tree blob. This is needed to boot
ARCH=powerpc kernels. Also add support for setting the eth0 mac address
via the ethaddr variable.

Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu>
Signed-off-by: Stefan Roese <sr@denx.de>

diff --git a/board/amcc/yosemite/yosemite.c b/board/amcc/yosemite/yosemite.c
index 6ec922ab0074a74c796ea05ab052fca64d09ded7..212fab8d08edbfb938d3e15934f248108c025855 100644 (file)
--- a/board/amcc/yosemite/yosemite.c
+++ b/board/amcc/yosemite/yosemite.c
@@ -26,6 +26,8 @@
 #include <asm/processor.h>
 #include <asm/io.h>
 #include <spd_sdram.h>
+#include <libfdt.h>
+#include <fdt_support.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -554,3 +556,24 @@ void board_reset(void)
        /* give reset to BCSR */
        *(unsigned char *)(CFG_BCSR_BASE | 0x06) = 0x09;
 }
+
+#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
+void ft_board_setup(void *blob, bd_t *bd)
+{
+       u32 val[4];
+       int rc;
+
+       ft_cpu_setup(blob, bd);
+
+       /* Fixup NOR mapping */
+       val[0] = 0;                             /* chip select number */
+       val[1] = 0;                             /* always 0 */
+       val[2] = gd->bd->bi_flashstart;
+       val[3] = gd->bd->bi_flashsize;
+       rc = fdt_find_and_setprop(blob, "/plb/opb/ebc", "ranges",
+                                 val, sizeof(val), 1);
+       if (rc)
+               printf("Unable to update property NOR mapping, err=%s\n",
+                      fdt_strerror(rc));
+}
+#endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */

diff --git a/include/configs/yosemite.h b/include/configs/yosemite.h
index c9323f607403686ebd9d37adf341746b8d053a89..3bd115a38d9bbfbb2c3ae576feb8a7cc71aa9ab0 100644 (file)
--- a/include/configs/yosemite.h
+++ b/include/configs/yosemite.h
@@ -140,6 +140,14 @@
 #define CFG_SDRAM_BANKS                (2)
 
 
+/*-----------------------------------------------------------------------
+ * Device tree support (Linux-2.6.26+)
+ *----------------------------------------------------------------------*/
+
+/* pass open firmware flat tree */
+#define CONFIG_OF_LIBFDT       1
+#define CONFIG_OF_BOARD_SETUP  1
+
 /*-----------------------------------------------------------------------
  * I2C
  *----------------------------------------------------------------------*/
@@ -227,6 +235,7 @@
 #define CONFIG_MII             1       /* MII PHY management           */
 #define CONFIG_NET_MULTI        1      /* required for netconsole      */
 #define CONFIG_PHY1_ADDR        3
+#define CONFIG_HAS_ETH0                1       /* add support for "ethaddr"    */
 #define CONFIG_HAS_ETH1                1       /* add support for "eth1addr"   */
 #define CONFIG_PHY_ADDR                1       /* PHY address, See schematics  */