[U-Boot] [PATCH] qoriq/p1_p2_rdb: USB device-tree fixups for P1020

[Ramneek Mehresh]

Resolve P1020 second USB controller multiplexing with eLBC
        - mandatory to mention USB2 in hwconfig string to select it
          over eLBC, otherwise USB2 node is removed
        - works only for SPI and SD boot

Signed-off-by: Ramneek Mehresh <ramneek.mehr...@freescale.com>
---
Applies on git://git.am.freescale.net/mirrors/u-boot.git
(branch master)

 board/freescale/p1_p2_rdb/p1_p2_rdb.c |   54 +++++++++++++++++++++++++++++++++
 1 files changed, 54 insertions(+), 0 deletions(-)

diff --git a/board/freescale/p1_p2_rdb/p1_p2_rdb.c 
b/board/freescale/p1_p2_rdb/p1_p2_rdb.c
index d66b130..14ad895 100644
--- a/board/freescale/p1_p2_rdb/p1_p2_rdb.c
+++ b/board/freescale/p1_p2_rdb/p1_p2_rdb.c
@@ -37,6 +37,7 @@
 #include <netdev.h>
 #include <rtc.h>
 #include <i2c.h>
+#include <hwconfig.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -247,6 +248,11 @@ extern void ft_pci_board_setup(void *blob);
 
 void ft_board_setup(void *blob, bd_t *bd)
 {
+#if defined(CONFIG_SDCARD) || defined(CONFIG_SPIFLASH)
+       const char *soc_elbc_compat = "fsl,p1020-elbc";
+#endif
+       const char *soc_usb_compat = "fsl-usb2-dr";
+       int off, err, usb1_off, usb2_off;
        phys_addr_t base;
        phys_size_t size;
 
@@ -260,5 +266,53 @@ void ft_board_setup(void *blob, bd_t *bd)
 #endif /* #if defined(CONFIG_PCI) */
 
        fdt_fixup_memory(blob, (u64)base, (u64)size);
+
+       fdt_fixup_dr_usb(blob, bd);
+
+#if defined(CONFIG_SDCARD) || defined(CONFIG_SPIFLASH)
+       /* Delete eLBC node as it is muxed with USB2 controller */
+       if (hwconfig("usb2")) {
+               off = fdt_node_offset_by_compatible(blob, -1,
+                       soc_elbc_compat);
+               if (off < 0) {
+                       printf("WARNING: could not find compatible node"
+                               " %s: %s.\n", soc_elbc_compat,
+                               fdt_strerror(off));
+                               return;
+               }
+               err = fdt_del_node(blob, off);
+               if (err < 0) {
+                       printf("WARNING: could not remove %s: %s.\n",
+                               soc_elbc_compat, fdt_strerror(err));
+                               return;
+               }
+       } else {
+#endif
+               /* Delete USB2 node as it is muxed with eLBC */
+               usb1_off = fdt_node_offset_by_compatible(blob, -1,
+                       soc_usb_compat);
+               if (usb1_off < 0) {
+                       printf("WARNING: could not find compatible node"
+                               " %s: %s.\n", soc_usb_compat,
+                               fdt_strerror(usb1_off));
+                       return;
+               }
+               usb2_off = fdt_node_offset_by_compatible(blob, usb1_off,
+                                soc_usb_compat);
+               if (usb2_off < 0) {
+                       printf("WARNING: could not find compatible node"
+                               " %s: %s.\n", soc_usb_compat,
+                               fdt_strerror(usb2_off));
+                       return;
+               }
+               err = fdt_del_node(blob, usb2_off);
+               if (err < 0) {
+                       printf("WARNING: could not remove %s: %s.\n",
+                               soc_usb_compat, fdt_strerror(err));
+                       return;
+               }
+#if defined(CONFIG_SDCARD) || defined(CONFIG_SPIFLASH)
+       }
+#endif
 }
 #endif
-- 
1.6.1


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