QE: Move FDT support into a common file

Move the flat device tree setup for QE related devices into
a common file shared between 83xx & 85xx platforms that have QE's.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

3 files changed, 93 insertions, 1 deletions

diff --git a/drivers/qe/Makefile b/drivers/qe/Makefile
index 4844181b8e..ec5aa738aa 100644
--- a/drivers/qe/Makefile
+++ b/drivers/qe/Makefile
@@ -24,7 +24,8 @@ include $(TOPDIR)/config.mk
 
 LIB 	:= $(obj)qe.a
 
-COBJS 	:= qe.o uccf.o uec.o uec_phy.o
+COBJS-$(CONFIG_OF_LIBFDT) += fdt.o
+COBJS 	:= qe.o uccf.o uec.o uec_phy.o $(COBJS-y)
 
 SRCS 	:= $(COBJS:.o=.c)
 OBJS 	:= $(addprefix $(obj),$(COBJS))
diff --git a/drivers/qe/fdt.c b/drivers/qe/fdt.c
new file mode 100644
index 0000000000..53074889c1
--- /dev/null
+++ b/drivers/qe/fdt.c
@@ -0,0 +1,90 @@
+/*
+ * Copyright 2008 Freescale Semiconductor, Inc.
+ *
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <libfdt.h>
+#include <fdt_support.h>
+#include "qe.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/*
+ * If a QE firmware has been uploaded, then add the 'firmware' node under
+ * the 'qe' node.
+ */
+void fdt_fixup_qe_firmware(void *blob)
+{
+	struct qe_firmware_info *qe_fw_info;
+	int node, ret;
+
+	qe_fw_info = qe_get_firmware_info();
+	if (!qe_fw_info)
+		return;
+
+	node = fdt_path_offset(blob, "/qe");
+	if (node < 0)
+		return;
+
+	/* We assume the node doesn't exist yet */
+	node = fdt_add_subnode(blob, node, "firmware");
+	if (node < 0)
+		return;
+
+	ret = fdt_setprop(blob, node, "extended-modes",
+		&qe_fw_info->extended_modes, sizeof(u64));
+	if (ret < 0)
+		goto error;
+
+	ret = fdt_setprop_string(blob, node, "id", qe_fw_info->id);
+	if (ret < 0)
+		goto error;
+
+	ret = fdt_setprop(blob, node, "virtual-traps", qe_fw_info->vtraps,
+		sizeof(qe_fw_info->vtraps));
+	if (ret < 0)
+		goto error;
+
+	return;
+
+error:
+	fdt_del_node(blob, node);
+}
+
+void ft_qe_setup(void *blob)
+{
+#ifdef CONFIG_QE
+	do_fixup_by_prop_u32(blob, "device_type", "qe", 4,
+		"bus-frequency", gd->qe_clk, 1);
+	do_fixup_by_prop_u32(blob, "device_type", "qe", 4,
+		"brg-frequency", gd->brg_clk, 1);
+	do_fixup_by_compat_u32(blob, "fsl,qe",
+		"clock-frequency", gd->qe_clk, 1);
+	do_fixup_by_compat_u32(blob, "fsl,qe",
+		"bus-frequency", gd->qe_clk, 1);
+	do_fixup_by_compat_u32(blob, "fsl,qe",
+		"brg-frequency", gd->brg_clk, 1);
+	fdt_fixup_qe_firmware(blob);
+#endif
+}
diff --git a/drivers/qe/qe.h b/drivers/qe/qe.h
index 4c96c67ff3..741ed7fa4a 100644
--- a/drivers/qe/qe.h
+++ b/drivers/qe/qe.h
@@ -289,5 +289,6 @@ int qe_set_brg(uint brg, uint rate);
 int qe_set_mii_clk_src(int ucc_num);
 int qe_upload_firmware(const struct qe_firmware *firmware);
 struct qe_firmware_info *qe_get_firmware_info(void);
+void ft_qe_setup(void *blob);
 
 #endif /* __QE_H__ */