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authorLennert Buytenhek <buytenh@wantstofly.org>2006-09-18 18:15:21 -0400
committerRussell King <rmk+kernel@arm.linux.org.uk>2006-09-25 05:25:38 -0400
commite25d64f1242e8586f6e20c26fd876a4d956a6c45 (patch)
tree1a68da7173716896254847708dcd1675102a24ac
parent7ae1f7ec525c32db441836ab0ab010b85cb819a2 (diff)
[ARM] 3819/1: iop3xx: factor out shared i2c code
Move the i2c bits shared between iop32x and iop33x to plat-iop/i2c.c and include/asm-arm/hardware/iop3xx.h. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat
-rw-r--r--arch/arm/mach-iop32x/common.c17
-rw-r--r--arch/arm/mach-iop32x/setup.c53
-rw-r--r--arch/arm/mach-iop33x/setup.c44
-rw-r--r--arch/arm/plat-iop/Makefile2
-rw-r--r--arch/arm/plat-iop/i2c.c81
-rw-r--r--include/asm-arm/arch-iop32x/iop321.h14
-rw-r--r--include/asm-arm/arch-iop33x/iop331.h16
-rw-r--r--include/asm-arm/hardware/iop3xx.h15
8 files changed, 111 insertions, 131 deletions
diff --git a/arch/arm/mach-iop32x/common.c b/arch/arm/mach-iop32x/common.c
index 8044af6a54e1..17e7d650fecb 100644
--- a/arch/arm/mach-iop32x/common.c
+++ b/arch/arm/mach-iop32x/common.c
@@ -14,6 +14,7 @@
14 14
15#include <linux/delay.h> 15#include <linux/delay.h>
16#include <asm/hardware.h> 16#include <asm/hardware.h>
17#include <asm/hardware/iop3xx.h>
17 18
18/* 19/*
19 * Shared variables 20 * Shared variables
@@ -39,23 +40,23 @@ void ep80219_power_off(void)
39 */ 40 */
40 41
41 /* Send the Address byte w/ the start condition */ 42 /* Send the Address byte w/ the start condition */
42 *IOP321_IDBR1 = 0x60; 43 *IOP3XX_IDBR1 = 0x60;
43 *IOP321_ICR1 = 0xE9; 44 *IOP3XX_ICR1 = 0xE9;
44 mdelay(1); 45 mdelay(1);
45 46
46 /* Send the START_MSG byte w/ no start or stop condition */ 47 /* Send the START_MSG byte w/ no start or stop condition */
47 *IOP321_IDBR1 = 0x0F; 48 *IOP3XX_IDBR1 = 0x0F;
48 *IOP321_ICR1 = 0xE8; 49 *IOP3XX_ICR1 = 0xE8;
49 mdelay(1); 50 mdelay(1);
50 51
51 /* Send the SHUTDOWN_COMPLETE Message ID byte w/ no start or stop condition */ 52 /* Send the SHUTDOWN_COMPLETE Message ID byte w/ no start or stop condition */
52 *IOP321_IDBR1 = 0x03; 53 *IOP3XX_IDBR1 = 0x03;
53 *IOP321_ICR1 = 0xE8; 54 *IOP3XX_ICR1 = 0xE8;
54 mdelay(1); 55 mdelay(1);
55 56
56 /* Send an ignored byte w/ stop condition */ 57 /* Send an ignored byte w/ stop condition */
57 *IOP321_IDBR1 = 0x00; 58 *IOP3XX_IDBR1 = 0x00;
58 *IOP321_ICR1 = 0xEA; 59 *IOP3XX_ICR1 = 0xEA;
59 60
60 while (1) ; 61 while (1) ;
61} 62}
diff --git a/arch/arm/mach-iop32x/setup.c b/arch/arm/mach-iop32x/setup.c
index 48d806474f40..1a03b0b41baa 100644
--- a/arch/arm/mach-iop32x/setup.c
+++ b/arch/arm/mach-iop32x/setup.c
@@ -29,6 +29,7 @@
29#include <asm/hardware.h> 29#include <asm/hardware.h>
30#include <asm/mach-types.h> 30#include <asm/mach-types.h>
31#include <asm/mach/arch.h> 31#include <asm/mach/arch.h>
32#include <asm/hardware/iop3xx.h>
32 33
33#define IOP321_UART_XTAL 1843200 34#define IOP321_UART_XTAL 1843200
34 35
@@ -57,58 +58,10 @@ static struct uart_port iop321_serial_ports[] = {
57 } 58 }
58}; 59};
59 60
60static struct resource iop32x_i2c_0_resources[] = {
61 [0] = {
62 .start = 0xfffff680,
63 .end = 0xfffff698,
64 .flags = IORESOURCE_MEM,
65 },
66 [1] = {
67 .start = IRQ_IOP321_I2C_0,
68 .end = IRQ_IOP321_I2C_0,
69 .flags = IORESOURCE_IRQ
70 }
71};
72
73static struct resource iop32x_i2c_1_resources[] = {
74 [0] = {
75 .start = 0xfffff6a0,
76 .end = 0xfffff6b8,
77 .flags = IORESOURCE_MEM,
78 },
79 [1] = {
80 .start = IRQ_IOP321_I2C_1,
81 .end = IRQ_IOP321_I2C_1,
82 .flags = IORESOURCE_IRQ
83 }
84};
85
86static struct platform_device iop32x_i2c_0_controller = {
87 .name = "IOP3xx-I2C",
88 .id = 0,
89 .num_resources = 2,
90 .resource = iop32x_i2c_0_resources
91};
92
93static struct platform_device iop32x_i2c_1_controller = {
94 .name = "IOP3xx-I2C",
95 .id = 1,
96 .num_resources = 2,
97 .resource = iop32x_i2c_1_resources
98};
99
100static struct platform_device *iop32x_devices[] __initdata = {
101 &iop32x_i2c_0_controller,
102 &iop32x_i2c_1_controller
103};
104
105void __init iop32x_init(void) 61void __init iop32x_init(void)
106{ 62{
107 if(iop_is_321()) 63 platform_device_register(&iop3xx_i2c0_device);
108 { 64 platform_device_register(&iop3xx_i2c1_device);
109 platform_add_devices(iop32x_devices,
110 ARRAY_SIZE(iop32x_devices));
111 }
112 early_serial_setup(&iop321_serial_ports[0]); 65 early_serial_setup(&iop321_serial_ports[0]);
113} 66}
114 67
diff --git a/arch/arm/mach-iop33x/setup.c b/arch/arm/mach-iop33x/setup.c
index 67cb21cb0ad9..ad737d6582b5 100644
--- a/arch/arm/mach-iop33x/setup.c
+++ b/arch/arm/mach-iop33x/setup.c
@@ -100,51 +100,9 @@ static struct platform_device iop33x_uart1 = {
100 .resource = iop33x_uart1_resources, 100 .resource = iop33x_uart1_resources,
101}; 101};
102 102
103static struct resource iop33x_i2c_0_resources[] = {
104 [0] = {
105 .start = 0xfffff680,
106 .end = 0xfffff698,
107 .flags = IORESOURCE_MEM,
108 },
109 [1] = {
110 .start = IRQ_IOP331_I2C_0,
111 .end = IRQ_IOP331_I2C_0,
112 .flags = IORESOURCE_IRQ
113 }
114};
115
116static struct resource iop33x_i2c_1_resources[] = {
117 [0] = {
118 .start = 0xfffff6a0,
119 .end = 0xfffff6b8,
120 .flags = IORESOURCE_MEM,
121 },
122 [1] = {
123 .start = IRQ_IOP331_I2C_1,
124 .end = IRQ_IOP331_I2C_1,
125 .flags = IORESOURCE_IRQ
126 }
127};
128
129static struct platform_device iop33x_i2c_0_controller = {
130 .name = "IOP3xx-I2C",
131 .id = 0,
132 .num_resources = 2,
133 .resource = iop33x_i2c_0_resources
134};
135
136static struct platform_device iop33x_i2c_1_controller = {
137 .name = "IOP3xx-I2C",
138 .id = 1,
139 .num_resources = 2,
140 .resource = iop33x_i2c_1_resources
141};
142
143static struct platform_device *iop33x_devices[] __initdata = { 103static struct platform_device *iop33x_devices[] __initdata = {
144 &iop33x_uart0, 104 &iop33x_uart0,
145 &iop33x_uart1, 105 &iop33x_uart1,
146 &iop33x_i2c_0_controller,
147 &iop33x_i2c_1_controller
148}; 106};
149 107
150void __init iop33x_init(void) 108void __init iop33x_init(void)
@@ -154,6 +112,8 @@ void __init iop33x_init(void)
154 platform_add_devices(iop33x_devices, 112 platform_add_devices(iop33x_devices,
155 ARRAY_SIZE(iop33x_devices)); 113 ARRAY_SIZE(iop33x_devices));
156 } 114 }
115 platform_device_register(&iop3xx_i2c0_device);
116 platform_device_register(&iop3xx_i2c1_device);
157} 117}
158 118
159#ifdef CONFIG_ARCH_IOP33X 119#ifdef CONFIG_ARCH_IOP33X
diff --git a/arch/arm/plat-iop/Makefile b/arch/arm/plat-iop/Makefile
index b299103537c5..be6ab7c71ca3 100644
--- a/arch/arm/plat-iop/Makefile
+++ b/arch/arm/plat-iop/Makefile
@@ -2,7 +2,7 @@
2# Makefile for the linux kernel. 2# Makefile for the linux kernel.
3# 3#
4 4
5obj-y := setup.o 5obj-y := i2c.o setup.o
6obj-m := 6obj-m :=
7obj-n := 7obj-n :=
8obj- := 8obj- :=
diff --git a/arch/arm/plat-iop/i2c.c b/arch/arm/plat-iop/i2c.c
new file mode 100644
index 000000000000..7ae149c2e982
--- /dev/null
+++ b/arch/arm/plat-iop/i2c.c
@@ -0,0 +1,81 @@
1/*
2 * arch/arm/plat-iop/i2c.c
3 *
4 * Author: Nicolas Pitre <nico@cam.org>
5 * Copyright (C) 2001 MontaVista Software, Inc.
6 * Copyright (C) 2004 Intel Corporation.
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 */
12
13#include <linux/mm.h>
14#include <linux/init.h>
15#include <linux/major.h>
16#include <linux/fs.h>
17#include <linux/platform_device.h>
18#include <linux/serial.h>
19#include <linux/tty.h>
20#include <linux/serial_core.h>
21#include <asm/io.h>
22#include <asm/pgtable.h>
23#include <asm/page.h>
24#include <asm/mach/map.h>
25#include <asm/setup.h>
26#include <asm/system.h>
27#include <asm/memory.h>
28#include <asm/hardware.h>
29#include <asm/hardware/iop3xx.h>
30#include <asm/mach-types.h>
31#include <asm/mach/arch.h>
32
33#ifdef CONFIG_ARCH_IOP32X
34#define IRQ_IOP3XX_I2C_0 IRQ_IOP321_I2C_0
35#define IRQ_IOP3XX_I2C_1 IRQ_IOP321_I2C_1
36#endif
37#ifdef CONFIG_ARCH_IOP33X
38#define IRQ_IOP3XX_I2C_0 IRQ_IOP331_I2C_0
39#define IRQ_IOP3XX_I2C_1 IRQ_IOP331_I2C_1
40#endif
41
42static struct resource iop3xx_i2c0_resources[] = {
43 [0] = {
44 .start = 0xfffff680,
45 .end = 0xfffff697,
46 .flags = IORESOURCE_MEM,
47 },
48 [1] = {
49 .start = IRQ_IOP3XX_I2C_0,
50 .end = IRQ_IOP3XX_I2C_0,
51 .flags = IORESOURCE_IRQ,
52 },
53};
54
55struct platform_device iop3xx_i2c0_device = {
56 .name = "IOP3xx-I2C",
57 .id = 0,
58 .num_resources = 2,
59 .resource = iop3xx_i2c0_resources,
60};
61
62
63static struct resource iop3xx_i2c1_resources[] = {
64 [0] = {
65 .start = 0xfffff6a0,
66 .end = 0xfffff6b7,
67 .flags = IORESOURCE_MEM,
68 },
69 [1] = {
70 .start = IRQ_IOP3XX_I2C_1,
71 .end = IRQ_IOP3XX_I2C_1,
72 .flags = IORESOURCE_IRQ,
73 }
74};
75
76struct platform_device iop3xx_i2c1_device = {
77 .name = "IOP3xx-I2C",
78 .id = 1,
79 .num_resources = 2,
80 .resource = iop3xx_i2c1_resources,
81};
diff --git a/include/asm-arm/arch-iop32x/iop321.h b/include/asm-arm/arch-iop32x/iop321.h
index 307272b07809..1a82dd96bf50 100644
--- a/include/asm-arm/arch-iop32x/iop321.h
+++ b/include/asm-arm/arch-iop32x/iop321.h
@@ -314,20 +314,6 @@
314 314
315/* SSP serial port unit 0x00001600 - 0x0000167F */ 315/* SSP serial port unit 0x00001600 - 0x0000167F */
316/* I2C bus interface unit 0x00001680 - 0x000016FF */ 316/* I2C bus interface unit 0x00001680 - 0x000016FF */
317#define IOP321_ICR0 (volatile u32 *)IOP321_REG_ADDR(0x00001680)
318#define IOP321_ISR0 (volatile u32 *)IOP321_REG_ADDR(0x00001684)
319#define IOP321_ISAR0 (volatile u32 *)IOP321_REG_ADDR(0x00001688)
320#define IOP321_IDBR0 (volatile u32 *)IOP321_REG_ADDR(0x0000168C)
321/* Reserved 0x00001690 */
322#define IOP321_IBMR0 (volatile u32 *)IOP321_REG_ADDR(0x00001694)
323/* Reserved 0x00001698 */
324/* Reserved 0x0000169C */
325#define IOP321_ICR1 (volatile u32 *)IOP321_REG_ADDR(0x000016A0)
326#define IOP321_ISR1 (volatile u32 *)IOP321_REG_ADDR(0x000016A4)
327#define IOP321_ISAR1 (volatile u32 *)IOP321_REG_ADDR(0x000016A8)
328#define IOP321_IDBR1 (volatile u32 *)IOP321_REG_ADDR(0x000016AC)
329#define IOP321_IBMR1 (volatile u32 *)IOP321_REG_ADDR(0x000016B4)
330/* Reserved 0x000016B8 through 0x000016FC */
331 317
332/* for I2C bit defs see drivers/i2c/i2c-iop3xx.h */ 318/* for I2C bit defs see drivers/i2c/i2c-iop3xx.h */
333 319
diff --git a/include/asm-arm/arch-iop33x/iop331.h b/include/asm-arm/arch-iop33x/iop331.h
index 21430f877ea7..a7f47122c5e1 100644
--- a/include/asm-arm/arch-iop33x/iop331.h
+++ b/include/asm-arm/arch-iop33x/iop331.h
@@ -311,22 +311,6 @@
311/* SSP serial port unit 0x00001600 - 0x0000167F */ 311/* SSP serial port unit 0x00001600 - 0x0000167F */
312 312
313/* I2C bus interface unit 0x00001680 - 0x000016FF */ 313/* I2C bus interface unit 0x00001680 - 0x000016FF */
314/* for I2C bit defs see drivers/i2c/i2c-iop3xx.h */
315
316#define IOP331_ICR0 (volatile u32 *)IOP331_REG_ADDR(0x00001680)
317#define IOP331_ISR0 (volatile u32 *)IOP331_REG_ADDR(0x00001684)
318#define IOP331_ISAR0 (volatile u32 *)IOP331_REG_ADDR(0x00001688)
319#define IOP331_IDBR0 (volatile u32 *)IOP331_REG_ADDR(0x0000168C)
320/* Reserved 0x00001690 */
321#define IOP331_IBMR0 (volatile u32 *)IOP331_REG_ADDR(0x00001694)
322/* Reserved 0x00001698 */
323/* Reserved 0x0000169C */
324#define IOP331_ICR1 (volatile u32 *)IOP331_REG_ADDR(0x000016A0)
325#define IOP331_ISR1 (volatile u32 *)IOP331_REG_ADDR(0x000016A4)
326#define IOP331_ISAR1 (volatile u32 *)IOP331_REG_ADDR(0x000016A8)
327#define IOP331_IDBR1 (volatile u32 *)IOP331_REG_ADDR(0x000016AC)
328#define IOP331_IBMR1 (volatile u32 *)IOP331_REG_ADDR(0x000016B4)
329/* Reserved 0x000016B8 through 0x000016FF */
330 314
331/* 0x00001700 through 0x0000172C UART 0 */ 315/* 0x00001700 through 0x0000172C UART 0 */
332 316
diff --git a/include/asm-arm/hardware/iop3xx.h b/include/asm-arm/hardware/iop3xx.h
index c17cc19cdfab..ea7d05970001 100644
--- a/include/asm-arm/hardware/iop3xx.h
+++ b/include/asm-arm/hardware/iop3xx.h
@@ -23,6 +23,18 @@
23#define IOP3XX_PERIPHERAL_SIZE 0x00002000 23#define IOP3XX_PERIPHERAL_SIZE 0x00002000
24#define IOP3XX_REG_ADDR(reg) (IOP3XX_PERIPHERAL_VIRT_BASE + (reg)) 24#define IOP3XX_REG_ADDR(reg) (IOP3XX_PERIPHERAL_VIRT_BASE + (reg))
25 25
26/* I2C bus interface unit */
27#define IOP3XX_ICR0 (volatile u32 *)IOP3XX_REG_ADDR(0x1680)
28#define IOP3XX_ISR0 (volatile u32 *)IOP3XX_REG_ADDR(0x1684)
29#define IOP3XX_ISAR0 (volatile u32 *)IOP3XX_REG_ADDR(0x1688)
30#define IOP3XX_IDBR0 (volatile u32 *)IOP3XX_REG_ADDR(0x168c)
31#define IOP3XX_IBMR0 (volatile u32 *)IOP3XX_REG_ADDR(0x1694)
32#define IOP3XX_ICR1 (volatile u32 *)IOP3XX_REG_ADDR(0x16a0)
33#define IOP3XX_ISR1 (volatile u32 *)IOP3XX_REG_ADDR(0x16a4)
34#define IOP3XX_ISAR1 (volatile u32 *)IOP3XX_REG_ADDR(0x16a8)
35#define IOP3XX_IDBR1 (volatile u32 *)IOP3XX_REG_ADDR(0x16ac)
36#define IOP3XX_IBMR1 (volatile u32 *)IOP3XX_REG_ADDR(0x16b4)
37
26 38
27/* 39/*
28 * IOP3XX I/O and Mem space regions for PCI autoconfiguration 40 * IOP3XX I/O and Mem space regions for PCI autoconfiguration
@@ -37,6 +49,9 @@
37 49
38#ifndef __ASSEMBLY__ 50#ifndef __ASSEMBLY__
39void iop3xx_map_io(void); 51void iop3xx_map_io(void);
52
53extern struct platform_device iop3xx_i2c0_device;
54extern struct platform_device iop3xx_i2c1_device;
40#endif 55#endif
41 56
42 57
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