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authorLinus Torvalds <torvalds@linux-foundation.org>2009-06-14 16:42:43 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-14 16:42:43 -0400
commit2cf4d4514d5b43c1f3b64bd0ec8b9853bde8f1dc (patch)
treee35a625496acc6ac852846d40b8851186b9d1ac4 /arch/arm/mach-davinci/include/mach/debug-macro.S
parent44b7532b8b464f606053562400719c9c21276037 (diff)
parentce53895a5d24e0ee19fb92f56c17323fb4c9ab27 (diff)
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: (417 commits) MAINTAINERS: EB110ATX is not ebsa110 MAINTAINERS: update Eric Miao's email address and status fb: add support of LCD display controller on pxa168/910 (base layer) [ARM] 5552/1: ep93xx get_uart_rate(): use EP93XX_SYSCON_PWRCNT and EP93XX_SYSCON_PWRCN [ARM] pxa/sharpsl_pm: zaurus needs generic pxa suspend/resume routines [ARM] 5544/1: Trust PrimeCell resource sizes [ARM] pxa/sharpsl_pm: cleanup of gpio-related code. [ARM] pxa/sharpsl_pm: drop set_irq_type calls [ARM] pxa/sharpsl_pm: merge pxa-specific code into generic one [ARM] pxa/sharpsl_pm: merge the two sharpsl_pm.c since it's now pxa specific [ARM] sa1100: remove unused collie_pm.c [ARM] pxa: fix the conflicting non-static declarations of global_gpios[] [ARM] 5550/1: Add default configure file for w90p910 platform [ARM] 5549/1: Add clock api for w90p910 platform. [ARM] 5548/1: Add gpio api for w90p910 platform [ARM] 5551/1: Add multi-function pin api for w90p910 platform. [ARM] Make ARM_VIC_NR depend on ARM_VIC [ARM] 5546/1: ARM PL022 SSP/SPI driver v3 ARM: OMAP4: SMP: Update defconfig for OMAP4430 ARM: OMAP4: SMP: Enable SMP support for OMAP4430 ...
Diffstat (limited to 'arch/arm/mach-davinci/include/mach/debug-macro.S')
-rw-r--r--arch/arm/mach-davinci/include/mach/debug-macro.S31
1 files changed, 29 insertions, 2 deletions
diff --git a/arch/arm/mach-davinci/include/mach/debug-macro.S b/arch/arm/mach-davinci/include/mach/debug-macro.S
index e6c0f0d5d06..de3fc2182b4 100644
--- a/arch/arm/mach-davinci/include/mach/debug-macro.S
+++ b/arch/arm/mach-davinci/include/mach/debug-macro.S
@@ -9,6 +9,16 @@
9 * or implied. 9 * or implied.
10 */ 10 */
11 11
12/* Modifications
13 * Jan 2009 Chaithrika U S Added senduart, busyuart, waituart
14 * macros, based on debug-8250.S file
15 * but using 32-bit accesses required for
16 * some davinci devices.
17 */
18
19#include <linux/serial_reg.h>
20#define UART_SHIFT 2
21
12 .macro addruart, rx 22 .macro addruart, rx
13 mrc p15, 0, \rx, c1, c0 23 mrc p15, 0, \rx, c1, c0
14 tst \rx, #1 @ MMU enabled? 24 tst \rx, #1 @ MMU enabled?
@@ -17,5 +27,22 @@
17 orr \rx, \rx, #0x00c20000 @ UART 0 27 orr \rx, \rx, #0x00c20000 @ UART 0
18 .endm 28 .endm
19 29
20#define UART_SHIFT 2 30 .macro senduart,rd,rx
21#include <asm/hardware/debug-8250.S> 31 str \rd, [\rx, #UART_TX << UART_SHIFT]
32 .endm
33
34 .macro busyuart,rd,rx
351002: ldr \rd, [\rx, #UART_LSR << UART_SHIFT]
36 and \rd, \rd, #UART_LSR_TEMT | UART_LSR_THRE
37 teq \rd, #UART_LSR_TEMT | UART_LSR_THRE
38 bne 1002b
39 .endm
40
41 .macro waituart,rd,rx
42#ifdef FLOW_CONTROL
431001: ldr \rd, [\rx, #UART_MSR << UART_SHIFT]
44 tst \rd, #UART_MSR_CTS
45 beq 1001b
46#endif
47 .endm
48