From bddeeae3cc2f31400d41dd27a4dd7e4f2156565d Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Wed, 13 Jun 2018 17:12:12 +1000
Subject: Add continuous clocking option

For P8 CFAM without async mode

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 cf-code/cf-fsi-fw.S | 16 ++++++++++++++--
 cf-fsi-fw.h         |  3 ++-
 2 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/cf-code/cf-fsi-fw.S b/cf-code/cf-fsi-fw.S
index f76627e..e897eaa 100644
--- a/cf-code/cf-fsi-fw.S
+++ b/cf-code/cf-fsi-fw.S
@@ -175,11 +175,19 @@ _header_info:
 	.byte	API_VERSION_MAJ		/* 0x04 */
 	.byte	API_VERSION_MIN		/* 0x05 */
 	.byte	0,0			/* 0x06 pad */
+
 #ifdef ENABLE_TRACE
-	.long	FW_OPTION_TRACE_EN	/* 0x08 */
+#define _FW_OPTION_TRACE_EN	FW_OPTION_TRACE_EN
+#else
+#define _FW_OPTION_TRACE_EN	0
+#endif
+
+#ifdef CONTINUOUS_CLOCKING
+#define _FW_OPTION_CONT_CLOCK	FW_OPTION_CONT_CLOCK
 #else
-	.long	0
+#define _FW_OPTION_CONT_CLOCK	0
 #endif
+	.long	_FW_OPTION_TRACE_EN | _FW_OPTION_CONT_CLOCK	/* 0x08 */
 
 	/*
 	 * Config area
@@ -290,8 +298,12 @@ main_loop:
 	move.l	%a1@(CMD_STAT_REG),%d2
 	tst.b	%d2
 	bne	command_request
+#ifdef CONTINUOUS_CLOCKING
+	clock_toggle
+#else
 	stop	#0x2000
 	move.w	#0x2007,%sr
+#endif
 	bra	1b
 
 arbitration_request:
diff --git a/cf-fsi-fw.h b/cf-fsi-fw.h
index 1ffa0a5..9356a41 100644
--- a/cf-fsi-fw.h
+++ b/cf-fsi-fw.h
@@ -32,7 +32,8 @@
 #define  API_VERSION_MAJ	1	/* Current version */
 #define  API_VERSION_MIN	1
 #define HDR_FW_OPTIONS		0x08	/* 4 bytes option flags */
-#define   FW_OPTION_TRACE_EN	0x00000001	/* FW tracing enabled */
+#define  FW_OPTION_TRACE_EN	0x00000001	/* FW tracing enabled */
+#define	 FW_OPTION_CONT_CLOCK	0x00000002	/* Continuous clocking */
 
 /* Boot Config: Address of Command/Status area */
 #define HDR_CMD_STAT_AREA	0x80	/* 4 bytes CF address */
-- 
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