Patchwork [V2,1/2] powerpc/85xx: Add QE common init functions

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Submitter Xiaobo Xie
Date Aug. 30, 2013, 10:01 a.m.
Message ID <1377856896-29244-1-git-send-email-X.Xie@freescale.com>
Download mbox | patch
Permalink /patch/271205/
State Superseded
Headers show

Comments

Xiaobo Xie - Aug. 30, 2013, 10:01 a.m.
Define two QE init functions in common file, and avoid
the same codes being duplicated in board files.

Signed-off-by: Xie Xiaobo <X.Xie@freescale.com>
---
 arch/powerpc/platforms/85xx/common.c  | 47 +++++++++++++++++++++++++++++++++++
 arch/powerpc/platforms/85xx/mpc85xx.h |  8 ++++++
 2 files changed, 55 insertions(+)

Patch

diff --git a/arch/powerpc/platforms/85xx/common.c b/arch/powerpc/platforms/85xx/common.c
index d0861a0..fb3f5e6 100644
--- a/arch/powerpc/platforms/85xx/common.c
+++ b/arch/powerpc/platforms/85xx/common.c
@@ -7,6 +7,8 @@ 
  */
 #include <linux/of_platform.h>
 
+#include <asm/qe.h>
+#include <asm/qe_ic.h>
 #include <sysdev/cpm2_pic.h>
 
 #include "mpc85xx.h"
@@ -80,3 +82,48 @@  void __init mpc85xx_cpm2_pic_init(void)
 	irq_set_chained_handler(irq, cpm2_cascade);
 }
 #endif
+
+#ifdef CONFIG_QUICC_ENGINE
+void __init mpc85xx_qe_pic_init(void)
+{
+	struct device_node *np;
+
+	np = of_find_compatible_node(NULL, NULL, "fsl,qe-ic");
+	if (np) {
+		qe_ic_init(np, 0, qe_ic_cascade_low_mpic,
+				qe_ic_cascade_high_mpic);
+		of_node_put(np);
+	} else
+		pr_err("%s: Could not find qe-ic node\n", __func__);
+}
+
+void __init mpc85xx_qe_init(void)
+{
+	struct device_node *np;
+
+	np = of_find_compatible_node(NULL, NULL, "fsl,qe");
+	if (!np) {
+		np = of_find_node_by_name(NULL, "qe");
+		if (!np) {
+			pr_err("%s: Could not find Quicc Engine node\n",
+					__func__);
+			return;
+		}
+	}
+
+	qe_reset();
+	of_node_put(np);
+
+	np = of_find_node_by_name(NULL, "par_io");
+	if (np) {
+		struct device_node *ucc;
+
+		par_io_init(np);
+		of_node_put(np);
+
+		for_each_node_by_name(ucc, "ucc")
+			par_io_of_config(ucc);
+
+	}
+}
+#endif
diff --git a/arch/powerpc/platforms/85xx/mpc85xx.h b/arch/powerpc/platforms/85xx/mpc85xx.h
index 2aa7c5d..1d39095 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx.h
+++ b/arch/powerpc/platforms/85xx/mpc85xx.h
@@ -8,4 +8,12 @@  extern void mpc85xx_cpm2_pic_init(void);
 static inline void __init mpc85xx_cpm2_pic_init(void) {}
 #endif /* CONFIG_CPM2 */
 
+#ifdef CONFIG_QUICC_ENGINE
+extern void mpc85xx_qe_pic_init(void);
+extern void mpc85xx_qe_init(void);
+#else
+static inline void __init mpc85xx_qe_pic_init(void) {}
+static inline void __init mpc85xx_qe_init(void) {}
+#endif
+
 #endif