TQM8xx: add device tree support for TQM8xx based boards.

Also use hwconfig to configure whether the board has a FEC or not.
We then can adjust the DTS to tell Linux if there is a FEC present.

syntax:

hwconfig=fec:on   if hardware has a  FEC
hwconfig=fec:off  if hardware has no FEC

Signed-off-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Wolfgang Denk <wd@denx.de>

diff --git a/board/tqc/tqm8xx/tqm8xx.c b/board/tqc/tqm8xx/tqm8xx.c
index f92c598dd847069e492c7434963f14bf3bb388e6..53f79e8b80f6429ba76a65f0f38d3a6b53b6d0aa 100644 (file)
--- a/board/tqc/tqm8xx/tqm8xx.c
+++ b/board/tqc/tqm8xx/tqm8xx.c
@@ -22,11 +22,16 @@
  */
 
 #include <common.h>
+#include <hwconfig.h>
 #include <mpc8xx.h>
 #ifdef CONFIG_PS2MULT
 #include <ps2mult.h>
 #endif
 
+#if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT)
+#include <libfdt.h>
+#endif
+
 extern flash_info_t flash_info[];      /* FLASH chips info */
 
 DECLARE_GLOBAL_DATA_PTR;
@@ -599,6 +604,120 @@ void lcd_show_board_info(void)
 }
 #endif /* CONFIG_LCD_INFO */
 
+/*
+ * Device Tree Support
+ */
+#if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT)
+int fdt_set_node_and_value (void *blob,
+                               char *nodename,
+                               char *regname,
+                               void *var,
+                               int size)
+{
+       int ret = 0;
+       int nodeoffset = 0;
+
+       nodeoffset = fdt_path_offset (blob, nodename);
+       if (nodeoffset >= 0) {
+               ret = fdt_setprop (blob, nodeoffset, regname, var,
+                                       size);
+               if (ret < 0) {
+                       printf("ft_blob_update(): "
+                               "cannot set %s/%s property; err: %s\n",
+                               nodename, regname, fdt_strerror (ret));
+               }
+       } else {
+               printf("ft_blob_update(): "
+                       "cannot find %s node err:%s\n",
+                       nodename, fdt_strerror (nodeoffset));
+       }
+       return ret;
+}
+
+int fdt_del_node_name (void *blob, char *nodename)
+{
+       int ret = 0;
+       int nodeoffset = 0;
+
+       nodeoffset = fdt_path_offset (blob, nodename);
+       if (nodeoffset >= 0) {
+               ret = fdt_del_node (blob, nodeoffset);
+               if (ret < 0) {
+                       printf("%s: cannot delete %s; err: %s\n",
+                               __func__, nodename, fdt_strerror (ret));
+               }
+       } else {
+               printf("%s: cannot find %s node err:%s\n",
+                       __func__, nodename, fdt_strerror (nodeoffset));
+       }
+       return ret;
+}
+
+int fdt_del_prop_name (void *blob, char *nodename, char *propname)
+{
+       int ret = 0;
+       int nodeoffset = 0;
+
+       nodeoffset = fdt_path_offset (blob, nodename);
+       if (nodeoffset >= 0) {
+               ret = fdt_delprop (blob, nodeoffset, propname);
+               if (ret < 0) {
+                       printf("%s: cannot delete %s %s; err: %s\n",
+                               __func__, nodename, propname,
+                               fdt_strerror (ret));
+               }
+       } else {
+               printf("%s: cannot find %s node err:%s\n",
+                       __func__, nodename, fdt_strerror (nodeoffset));
+       }
+       return ret;
+}
+
+/*
+ * update "brg" property in the blob
+ */
+void ft_blob_update (void *blob, bd_t *bd)
+{
+       uchar enetaddr[6];
+       ulong brg_data = 0;
+
+       /* BRG */
+       brg_data = cpu_to_be32(bd->bi_busfreq);
+       fdt_set_node_and_value(blob,
+                               "/soc/cpm", "brg-frequency",
+                               &brg_data, sizeof(brg_data));
+
+       /* MAC addr */
+       if (eth_getenv_enetaddr("ethaddr", enetaddr)) {
+               fdt_set_node_and_value(blob,
+                                       "ethernet0", "local-mac-address",
+                                       enetaddr, sizeof(u8) * 6);
+       }
+
+       if (hwconfig_arg_cmp("fec", "off")) {
+               /* no FEC on this plattform, delete DTS nodes */
+               fdt_del_node_name (blob, "ethernet1");
+               fdt_del_node_name (blob, "mdio1");
+               /* also the aliases entries */
+               fdt_del_prop_name (blob, "/aliases", "ethernet1");
+               fdt_del_prop_name (blob, "/aliases", "mdio1");
+       } else {
+               /* adjust local-mac-address for FEC ethernet */
+               if (eth_getenv_enetaddr("eth1addr", enetaddr)) {
+                       fdt_set_node_and_value(blob,
+                                       "ethernet1", "local-mac-address",
+                                       enetaddr, sizeof(u8) * 6);
+               }
+       }
+}
+
+void ft_board_setup(void *blob, bd_t *bd)
+{
+       ft_cpu_setup(blob, bd);
+       ft_blob_update(blob, bd);
+}
+#endif /* defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT) */
+
 /* ---------------------------------------------------------------------------- */
 /* TK885D specific initializaion                                               */
 /* ---------------------------------------------------------------------------- */