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authorLinus Torvalds <torvalds@linux-foundation.org>2010-03-13 03:00:54 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2010-03-13 03:00:54 +0300
commitdca1d9f6d7ae428c193f32bd3e9a4ca13176648b (patch)
tree02de8c3503c1c811754423d2fa3f3b4978044f6e /arch/arm/plat-samsung/include/plat/debug-macro.S
parent9ff99339447de403a46be5e3f23d0c794d540b06 (diff)
parent91e013827c0bcbb187ecf02213c5446b6f62d445 (diff)
downloadlinux-dca1d9f6d7ae428c193f32bd3e9a4ca13176648b.tar.xz
Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (370 commits) ARM: S3C2443: Add set_rate and round_rate calls for armdiv clock ARM: S3C2443: Remove #if 0 for clk_mpll ARM: S3C2443: Update notes on MPLLREF clock ARM: S3C2443: Further clksrc-clk conversions ARM: S3C2443: Change to using plat-samsung clksrc-clk implementation USB: Fix s3c-hsotg build following Samsung platform header moves ARM: S3C64XX: Reintroduce unconditional build of audio device ARM: 5961/1: ux500: fix CLKRST addresses ARM: 5977/1: arm: Enable backtrace printing on oops when PC is corrupted ASoC: Fix S3C64xx IIS driver for Samsung header reorg ARM: S3C2440: Fix plat-s3c24xx move of s3c2440/s3c2442 support [ARM] pxa: fix typo in mxm8x10.h [ARM] pxa/raumfeld: set GPIO drive bits for LED pins [ARM] pxa/zeus: Add support for mcp2515 CAN bus [ARM] pxa/zeus: Add support for onboard max6369 watchdog [ARM] pxa/zeus: Add Eurotech as the manufacturer [ARM] pxa/zeus: Correct the USB host initialisation flags [ARM] pxa/zeus: Allow usage of 8250-compatible UART in uncompress [ARM] pxa: refactor uncompress.h for non-PXA uarts [ARM] mmp2: fix incorrect calling of chip->mask_ack() for 2nd level cascaded IRQs ...
Diffstat (limited to 'arch/arm/plat-samsung/include/plat/debug-macro.S')
-rw-r--r--arch/arm/plat-samsung/include/plat/debug-macro.S87
1 files changed, 87 insertions, 0 deletions
diff --git a/arch/arm/plat-samsung/include/plat/debug-macro.S b/arch/arm/plat-samsung/include/plat/debug-macro.S
new file mode 100644
index 000000000000..dc6efd90e8ff
--- /dev/null
+++ b/arch/arm/plat-samsung/include/plat/debug-macro.S
@@ -0,0 +1,87 @@
+/* arch/arm/plat-samsung/include/plat/debug-macro.S
+ *
+ * Copyright 2005, 2007 Simtec Electronics
+ * http://armlinux.simtec.co.uk/
+ * Ben Dooks <ben@simtec.co.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <plat/regs-serial.h>
+
+/* The S5PV210/S5PC110 and S5P6442 implementations are as belows. */
+
+ .macro fifo_level_s5pv210 rd, rx
+ ldr \rd, [ \rx, # S3C2410_UFSTAT ]
+ and \rd, \rd, #S5PV210_UFSTAT_TXMASK
+ .endm
+
+ .macro fifo_full_s5pv210 rd, rx
+ ldr \rd, [ \rx, # S3C2410_UFSTAT ]
+ tst \rd, #S5PV210_UFSTAT_TXFULL
+ .endm
+
+/* 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_s3c2440
+#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 ]
+ .endm
+
+ .macro busyuart, rd, rx
+ ldr \rd, [ \rx, # S3C2410_UFCON ]
+ tst \rd, #S3C2410_UFCON_FIFOMODE @ fifo enabled?
+ beq 1001f @
+ @ FIFO enabled...
+1003:
+ fifo_full \rd, \rx
+ bne 1003b
+ b 1002f
+
+1001:
+ @ busy waiting for non fifo
+ ldr \rd, [ \rx, # S3C2410_UTRSTAT ]
+ tst \rd, #S3C2410_UTRSTAT_TXFE
+ beq 1001b
+
+1002: @ exit busyuart
+ .endm
+
+ .macro waituart,rd,rx
+ ldr \rd, [ \rx, # S3C2410_UFCON ]
+ tst \rd, #S3C2410_UFCON_FIFOMODE @ fifo enabled?
+ beq 1001f @
+ @ FIFO enabled...
+1003:
+ fifo_level \rd, \rx
+ teq \rd, #0
+ bne 1003b
+ b 1002f
+1001:
+ @ idle waiting for non fifo
+ ldr \rd, [ \rx, # S3C2410_UTRSTAT ]
+ tst \rd, #S3C2410_UTRSTAT_TXFE
+ beq 1001b
+
+1002: @ exit busyuart
+ .endm