From: Ben Dooks <ben-linux@fluff.org>
Date: Sun, 22 Jul 2007 15:10:23 +0000 (+0100)
Subject: [ARM] 4512/1: S3C: rename the debug macros for per-cpu updates
X-Git-Tag: firefly_0821_release~27204^2^9~12
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=cbc4dbffc89fbaada94ae7873ad6631a701fd00e;p=firefly-linux-kernel-4.4.55.git

[ARM] 4512/1: S3C: rename the debug macros for per-cpu updates

Update the debug macros for use with the new per-cpu
configuration and usage.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

diff --git a/include/asm-arm/arch-s3c2410/debug-macro.S b/include/asm-arm/arch-s3c2410/debug-macro.S
index b0a44178b14e..6fcef3383f8e 100644
--- a/include/asm-arm/arch-s3c2410/debug-macro.S
+++ b/include/asm-arm/arch-s3c2410/debug-macro.S
@@ -14,9 +14,7 @@
 
 #include <asm/arch/map.h>
 #include <asm/arch/regs-gpio.h>
-
 #include <asm/plat-s3c/regs-serial.h>
-#include <asm/plat-s3c/debug-macro.S>
 
 #define S3C2410_UART1_OFF (0x4000)
 #define SHIFT_2440TXF (14-9)
@@ -31,7 +29,7 @@
 #endif
 	.endm
 
-	.macro fifo_full rd, rx
+	.macro fifo_full_s3c24xx rd, rx
 		@ check for arm920 vs arm926. currently assume all arm926
 		@ devices have an 64 byte FIFO identical to the s3c2440
 		mrc	p15, 0, \rd, c0, c0
@@ -52,7 +50,14 @@
 		tst	\rd, #S3C2410_UFSTAT_TXFULL
 	.endm
 
-	.macro fifo_level rd, rx
+	.macro  fifo_full_s3c2410 rd, rx
+		ldr	\rd, [ \rx, # S3C2410_UFSTAT ]
+		tst	\rd, #S3C2410_UFSTAT_TXFULL
+	.endm
+
+/* fifo level reading */
+
+	.macro fifo_level_s3c24xx rd, rx
 		mrc	p15, 0, \rd, c1, c0
 		tst	\rd, #1
 		addeq	\rd, \rx, #(S3C24XX_PA_GPIO - S3C24XX_PA_UART)
@@ -66,3 +71,27 @@
 		andne	\rd, \rd, #S3C2410_UFSTAT_TXMASK
 		andeq	\rd, \rd, #S3C2440_UFSTAT_TXMASK
 	.endm
+
+	.macro fifo_level_s3c2410 rd, rx
+		ldr	\rd, [ \rx, # S3C2410_UFSTAT ]
+		and	\rd, \rd, #S3C2410_UFSTAT_TXMASK
+	.endm
+
+/* Select the correct implementation depending on the configuration. The
+ * S3C2440 will get selected by default, as these are the most widely
+ * used variants of these
+*/
+
+#if defined(CONFIG_CPU_LLSERIAL_S3C2410_ONLY)
+#define fifo_full  fifo_full_s3c2410
+#define fifo_level fifo_level_s3c2410
+#warning 2410only
+#elif !defined(CONFIG_CPU_LLSERIAL_S3C2440_ONLY)
+#define fifo_full  fifo_full_s3c24xx
+#define fifo_level fifo_level_s3c24xx
+#warning generic
+#endif
+
+/* include the reset of the code which will do the work */
+
+#include <asm/plat-s3c/debug-macro.S>
diff --git a/include/asm-arm/plat-s3c/debug-macro.S b/include/asm-arm/plat-s3c/debug-macro.S
index a43bbfa90a0b..84c40b847da8 100644
--- a/include/asm-arm/plat-s3c/debug-macro.S
+++ b/include/asm-arm/plat-s3c/debug-macro.S
@@ -11,7 +11,26 @@
 
 #include <asm/plat-s3c/regs-serial.h>
 
-#define S3C2410_UART1_OFF (0x4000)
+/* The S3C2440 implementations are used by default as they are the
+ * most widely re-used */
+
+	.macro fifo_level_s3c2440 rd, rx
+		ldr	\rd, [ \rx, # S3C2410_UFSTAT ]
+		and	\rd, \rd, #S3C2440_UFSTAT_TXMASK
+	.endm
+
+#ifndef fifo_level
+#define fifo_level fifo_level_s3c2410
+#endif
+
+	.macro  fifo_full_s3c2440 rd, rx
+		ldr	\rd, [ \rx, # S3C2410_UFSTAT ]
+		tst	\rd, #S3C2440_UFSTAT_TXFULL
+	.endm
+
+#ifndef fifo_full
+#define fifo_full fifo_full_s3c2440
+#endif
 
 	.macro	senduart,rd,rx
 		strb 	\rd, [\rx, # S3C2410_UTXH ]
@@ -37,7 +56,6 @@
 	.endm
 
 	.macro	waituart,rd,rx
-
 		ldr	\rd, [ \rx, # S3C2410_UFCON ]
 		tst	\rd, #S3C2410_UFCON_FIFOMODE	@ fifo enabled?
 		beq	1001f				@