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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2006-03-16 15:40:25 -0500
committerRussell King <rmk+kernel@arm.linux.org.uk>2006-03-21 17:05:57 -0500
commit268099e3ccca5a988632ce18abd21d809d632ddc (patch)
treeeb060cc006e441742b1035d1a69e4d2d79e83e22 /include/asm-arm
parent22398f57b6372f3150f9ebb4b6d0aa4bf98c5dfb (diff)
[ARM] Collect 8250-based debug implementations together
Several ARM machine implementations used an 8250 compatible port for debugging purposes, and indepdently implemented the low level debug macros every time. Provide a common implementation and convert these implementations to use this version. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'include/asm-arm')
-rw-r--r--include/asm-arm/arch-cl7500/debug-macro.S14
-rw-r--r--include/asm-arm/arch-ebsa110/debug-macro.S19
-rw-r--r--include/asm-arm/arch-ebsa285/debug-macro.S18
-rw-r--r--include/asm-arm/arch-iop3xx/debug-macro.S19
-rw-r--r--include/asm-arm/arch-ixp4xx/debug-macro.S15
-rw-r--r--include/asm-arm/arch-pxa/debug-macro.S17
-rw-r--r--include/asm-arm/arch-rpc/debug-macro.S19
-rw-r--r--include/asm-arm/hardware/debug-8250.S29
8 files changed, 47 insertions, 103 deletions
diff --git a/include/asm-arm/arch-cl7500/debug-macro.S b/include/asm-arm/arch-cl7500/debug-macro.S
index a5d489d7955a..9a2b67d24098 100644
--- a/include/asm-arm/arch-cl7500/debug-macro.S
+++ b/include/asm-arm/arch-cl7500/debug-macro.S
@@ -17,15 +17,5 @@
17 orr \rx, \rx, #0x00000be0 17 orr \rx, \rx, #0x00000be0
18 .endm 18 .endm
19 19
20 .macro senduart,rd,rx 20#define UART_SHIFT 2
21 strb \rd, [\rx] 21#include <asm/hardware/debug-8250.S>
22 .endm
23
24 .macro busyuart,rd,rx
25 .endm
26
27 .macro waituart,rd,rx
281001: ldrb \rd, [\rx, #0x14]
29 tst \rd, #0x20
30 beq 1001b
31 .endm
diff --git a/include/asm-arm/arch-ebsa110/debug-macro.S b/include/asm-arm/arch-ebsa110/debug-macro.S
index dcd03a40c502..f61cadabe0ec 100644
--- a/include/asm-arm/arch-ebsa110/debug-macro.S
+++ b/include/asm-arm/arch-ebsa110/debug-macro.S
@@ -16,19 +16,6 @@
16 orr \rx, \rx, #0x00000be0 16 orr \rx, \rx, #0x00000be0
17 .endm 17 .endm
18 18
19 .macro senduart,rd,rx 19#define UART_SHIFT 2
20 strb \rd, [\rx] 20#define FLOW_CONTROL
21 .endm 21#include <asm/hardware/debug-8250.h>
22
23 .macro busyuart,rd,rx
241002: ldrb \rd, [\rx, #0x14]
25 and \rd, \rd, #0x60
26 teq \rd, #0x60
27 bne 1002b
28 .endm
29
30 .macro waituart,rd,rx
311001: ldrb \rd, [\rx, #0x18]
32 tst \rd, #0x10
33 beq 1001b
34 .endm
diff --git a/include/asm-arm/arch-ebsa285/debug-macro.S b/include/asm-arm/arch-ebsa285/debug-macro.S
index 97d15fc629af..b48cec4a0c45 100644
--- a/include/asm-arm/arch-ebsa285/debug-macro.S
+++ b/include/asm-arm/arch-ebsa285/debug-macro.S
@@ -23,22 +23,10 @@
23 orr \rx, \rx, #0x000003f8 23 orr \rx, \rx, #0x000003f8
24 .endm 24 .endm
25 25
26 .macro senduart,rd,rx 26#define UART_SHIFT 0
27 strb \rd, [\rx] 27#define FLOW_CONTROL
28 .endm 28#include <asm/hardware/debug-8250.S>
29 29
30 .macro busyuart,rd,rx
311002: ldrb \rd, [\rx, #0x5]
32 and \rd, \rd, #0x60
33 teq \rd, #0x60
34 bne 1002b
35 .endm
36
37 .macro waituart,rd,rx
381001: ldrb \rd, [\rx, #0x6]
39 tst \rd, #0x10
40 beq 1001b
41 .endm
42#else 30#else
43 /* For EBSA285 debugging */ 31 /* For EBSA285 debugging */
44 .equ dc21285_high, ARMCSR_BASE & 0xff000000 32 .equ dc21285_high, ARMCSR_BASE & 0xff000000
diff --git a/include/asm-arm/arch-iop3xx/debug-macro.S b/include/asm-arm/arch-iop3xx/debug-macro.S
index cc15f80ebd9a..ce007e531994 100644
--- a/include/asm-arm/arch-iop3xx/debug-macro.S
+++ b/include/asm-arm/arch-iop3xx/debug-macro.S
@@ -28,21 +28,8 @@
28#endif 28#endif
29 .endm 29 .endm
30 30
31 .macro senduart,rd,rx
32 strb \rd, [\rx]
33 .endm
34
35 .macro busyuart,rd,rx
361002: ldrb \rd, [\rx, #0x5]
37 and \rd, \rd, #0x60
38 teq \rd, #0x60
39 bne 1002b
40 .endm
41
42 .macro waituart,rd,rx
43#if !defined(CONFIG_ARCH_IQ80321) || !defined(CONFIG_ARCH_IQ31244) || !defined(CONFIG_ARCH_IQ80331) 31#if !defined(CONFIG_ARCH_IQ80321) || !defined(CONFIG_ARCH_IQ31244) || !defined(CONFIG_ARCH_IQ80331)
441001: ldrb \rd, [\rx, #0x6] 32#define FLOW_CONTROL
45 tst \rd, #0x10
46 beq 1001b
47#endif 33#endif
48 .endm 34#define UART_SHIFT 0
35#include <asm/hardware/debug-8250.S>
diff --git a/include/asm-arm/arch-ixp4xx/debug-macro.S b/include/asm-arm/arch-ixp4xx/debug-macro.S
index 2e23651e217f..37bc8ef23e67 100644
--- a/include/asm-arm/arch-ixp4xx/debug-macro.S
+++ b/include/asm-arm/arch-ixp4xx/debug-macro.S
@@ -20,16 +20,5 @@
20 @ byte writes used - Big Endian. 20 @ byte writes used - Big Endian.
21 .endm 21 .endm
22 22
23 .macro senduart,rd,rx 23#define UART_SHIFT 2
24 strb \rd, [\rx] 24#include <asm/hardware/debug-8250.S>
25 .endm
26
27 .macro waituart,rd,rx
281002: ldrb \rd, [\rx, #0x14]
29 and \rd, \rd, #0x60 @ check THRE and TEMT bits
30 teq \rd, #0x60
31 bne 1002b
32 .endm
33
34 .macro busyuart,rd,rx
35 .endm
diff --git a/include/asm-arm/arch-pxa/debug-macro.S b/include/asm-arm/arch-pxa/debug-macro.S
index b6ec68879176..9012cbc0ad8b 100644
--- a/include/asm-arm/arch-pxa/debug-macro.S
+++ b/include/asm-arm/arch-pxa/debug-macro.S
@@ -21,18 +21,5 @@
21 orr \rx, \rx, #0x00100000 21 orr \rx, \rx, #0x00100000
22 .endm 22 .endm
23 23
24 .macro senduart,rd,rx 24#define UART_SHIFT 2
25 str \rd, [\rx, #0] 25#include <asm/hardware/debug-8250.S>
26 .endm
27
28 .macro busyuart,rd,rx
291002: ldr \rd, [\rx, #0x14]
30 tst \rd, #(1 << 6)
31 beq 1002b
32 .endm
33
34 .macro waituart,rd,rx
351001: ldr \rd, [\rx, #0x14]
36 tst \rd, #(1 << 5)
37 beq 1001b
38 .endm
diff --git a/include/asm-arm/arch-rpc/debug-macro.S b/include/asm-arm/arch-rpc/debug-macro.S
index 456d3d754c3d..c634c8d8f4a1 100644
--- a/include/asm-arm/arch-rpc/debug-macro.S
+++ b/include/asm-arm/arch-rpc/debug-macro.S
@@ -20,19 +20,6 @@
20 orr \rx, \rx, #0x00000fe0 20 orr \rx, \rx, #0x00000fe0
21 .endm 21 .endm
22 22
23 .macro senduart,rd,rx 23#define UART_SHIFT 2
24 strb \rd, [\rx] 24#define FLOW_CONTROL
25 .endm 25#include <asm/hardware/debug-8250.S>
26
27 .macro busyuart,rd,rx
281001: ldrb \rd, [\rx, #0x14]
29 and \rd, \rd, #0x60
30 teq \rd, #0x60
31 bne 1001b
32 .endm
33
34 .macro waituart,rd,rx
351001: ldrb \rd, [\rx, #0x18]
36 tst \rd, #0x10
37 beq 1001b
38 .endm
diff --git a/include/asm-arm/hardware/debug-8250.S b/include/asm-arm/hardware/debug-8250.S
new file mode 100644
index 000000000000..4594fea91ec1
--- /dev/null
+++ b/include/asm-arm/hardware/debug-8250.S
@@ -0,0 +1,29 @@
1/*
2 * linux/include/asm-arm/hardware/debug-8250.h
3 *
4 * Copyright (C) 1994-1999 Russell King
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10#include <linux/serial_reg.h>
11
12 .macro senduart,rd,rx
13 strb \rd, [\rx, #UART_TX << UART_SHIFT]
14 .endm
15
16 .macro busyuart,rd,rx
171002: ldrb \rd, [\rx, #UART_LSR << UART_SHIFT]
18 and \rd, \rd, #UART_LSR_TEMT | UART_LSR_THRE
19 teq \rd, #UART_LSR_TEMT | UART_LSR_THRE
20 bne 1002b
21 .endm
22
23 .macro waituart,rd,rx
24#ifdef FLOW_CONTROL
251001: ldrb \rd, [\rx, #UART_MSR << UART_SHIFT]
26 tst \rd, #UART_MSR_CTS
27 beq 1001b
28#endif
29 .endm
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