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authorZhicheng Fan <B32736@freescale.com>2013-03-25 07:30:07 +0000
committerAndy Fleming <afleming@freescale.com>2013-05-02 16:56:45 -0500
commit7d83b79c2bdfeca79eaf1b536ada8ad0de1d204a (patch)
tree4a54bfb9a65dbf7464b0252396fe3cd5b240af79 /board
parent56376c42882896419f4231879fd19b0e307a3207 (diff)
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qoriq/p1_p2_rdb_pc: USB device-tree fixups for P1020
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.mehresh@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Zhicheng Fan <B32736@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
Diffstat (limited to 'board')
-rw-r--r--board/freescale/p1_p2_rdb_pc/p1_p2_rdb_pc.c47
1 files changed, 47 insertions, 0 deletions
diff --git a/board/freescale/p1_p2_rdb_pc/p1_p2_rdb_pc.c b/board/freescale/p1_p2_rdb_pc/p1_p2_rdb_pc.c
index 5b5b86c..ef62638 100644
--- a/board/freescale/p1_p2_rdb_pc/p1_p2_rdb_pc.c
+++ b/board/freescale/p1_p2_rdb_pc/p1_p2_rdb_pc.c
@@ -421,6 +421,8 @@ void ft_board_setup(void *blob, bd_t *bd)
{
phys_addr_t base;
phys_size_t size;
+ const char *soc_usb_compat = "fsl-usb2-dr";
+ int err, usb1_off, usb2_off;
ft_cpu_setup(blob, bd);
@@ -442,5 +444,50 @@ void ft_board_setup(void *blob, bd_t *bd)
#if defined(CONFIG_HAS_FSL_DR_USB)
fdt_fixup_dr_usb(blob, bd);
#endif
+
+#if defined(CONFIG_SDCARD) || defined(CONFIG_SPIFLASH)
+ /* Delete eLBC node as it is muxed with USB2 controller */
+ if (hwconfig("usb2")) {
+ const char *soc_elbc_compat = "fsl,p1020-elbc";
+ int 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;
+ }
+#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));
+ }
+
}
#endif