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authorBen Dooks <ben-linux@fluff.org>2008-10-21 09:06:46 -0400
committerBen Dooks <ben-linux@fluff.org>2008-12-15 16:49:46 -0500
commit0241cbb9d62613f6952d023a04d565901a3ca1ad (patch)
treeb622324e3ea135a70a71f57f12b762c034d3557e /arch
parente1a2bd1d2f368faaf377fdf8404a685280a3d0a3 (diff)
[ARM] S3C64XX: Add UARTdevice definitions
Add resources and information for the UART deviecs on the S3C64XX CPUs. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/plat-s3c/include/plat/devs.h1
-rw-r--r--arch/arm/plat-s3c64xx/Makefile2
-rw-r--r--arch/arm/plat-s3c64xx/dev-uart.c176
-rw-r--r--arch/arm/plat-s3c64xx/include/plat/irqs.h35
4 files changed, 213 insertions, 1 deletions
diff --git a/arch/arm/plat-s3c/include/plat/devs.h b/arch/arm/plat-s3c/include/plat/devs.h
index badaac9d64a8..a689c7c5ac23 100644
--- a/arch/arm/plat-s3c/include/plat/devs.h
+++ b/arch/arm/plat-s3c/include/plat/devs.h
@@ -17,6 +17,7 @@ struct s3c24xx_uart_resources {
17}; 17};
18 18
19extern struct s3c24xx_uart_resources s3c2410_uart_resources[]; 19extern struct s3c24xx_uart_resources s3c2410_uart_resources[];
20extern struct s3c24xx_uart_resources s3c64xx_uart_resources[];
20 21
21extern struct platform_device *s3c24xx_uart_devs[]; 22extern struct platform_device *s3c24xx_uart_devs[];
22extern struct platform_device *s3c24xx_uart_src[]; 23extern struct platform_device *s3c24xx_uart_src[];
diff --git a/arch/arm/plat-s3c64xx/Makefile b/arch/arm/plat-s3c64xx/Makefile
index 900c86367e1b..178c968bb8da 100644
--- a/arch/arm/plat-s3c64xx/Makefile
+++ b/arch/arm/plat-s3c64xx/Makefile
@@ -11,3 +11,5 @@ obj-n := dummy.o
11obj- := 11obj- :=
12 12
13# Core files 13# Core files
14
15obj-y += dev-uart.o
diff --git a/arch/arm/plat-s3c64xx/dev-uart.c b/arch/arm/plat-s3c64xx/dev-uart.c
new file mode 100644
index 000000000000..62c11a6fc7ba
--- /dev/null
+++ b/arch/arm/plat-s3c64xx/dev-uart.c
@@ -0,0 +1,176 @@
1/* linux/arch/arm/plat-s3c64xx/dev-uart.c
2 *
3 * Copyright 2008 Openmoko, Inc.
4 * Copyright 2008 Simtec Electronics
5 * Ben Dooks <ben@simtec.co.uk>
6 * http://armlinux.simtec.co.uk/
7 *
8 * Base S3C64XX UART resource and device definitions
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
13 *
14*/
15
16#include <linux/kernel.h>
17#include <linux/types.h>
18#include <linux/interrupt.h>
19#include <linux/list.h>
20#include <linux/platform_device.h>
21
22#include <asm/mach/arch.h>
23#include <asm/mach/irq.h>
24#include <mach/hardware.h>
25#include <mach/map.h>
26
27#include <plat/devs.h>
28
29/* Serial port registrations */
30
31/* 64xx uarts are closer together */
32
33static struct resource s3c64xx_uart0_resource[] = {
34 [0] = {
35 .start = S3C_PA_UART0,
36 .end = S3C_PA_UART0 + 0x100,
37 .flags = IORESOURCE_MEM,
38 },
39 [1] = {
40 .start = IRQ_S3CUART_RX0,
41 .end = IRQ_S3CUART_RX0,
42 .flags = IORESOURCE_IRQ,
43 },
44 [2] = {
45 .start = IRQ_S3CUART_TX0,
46 .end = IRQ_S3CUART_TX0,
47 .flags = IORESOURCE_IRQ,
48
49 },
50 [3] = {
51 .start = IRQ_S3CUART_ERR0,
52 .end = IRQ_S3CUART_ERR0,
53 .flags = IORESOURCE_IRQ,
54 }
55};
56
57static struct resource s3c64xx_uart1_resource[] = {
58 [0] = {
59 .start = S3C_PA_UART1,
60 .end = S3C_PA_UART1 + 0x100,
61 .flags = IORESOURCE_MEM,
62 },
63 [1] = {
64 .start = IRQ_S3CUART_RX1,
65 .end = IRQ_S3CUART_RX1,
66 .flags = IORESOURCE_IRQ,
67 },
68 [2] = {
69 .start = IRQ_S3CUART_TX1,
70 .end = IRQ_S3CUART_TX1,
71 .flags = IORESOURCE_IRQ,
72
73 },
74 [3] = {
75 .start = IRQ_S3CUART_ERR1,
76 .end = IRQ_S3CUART_ERR1,
77 .flags = IORESOURCE_IRQ,
78 },
79};
80
81static struct resource s3c6xx_uart2_resource[] = {
82 [0] = {
83 .start = S3C_PA_UART2,
84 .end = S3C_PA_UART2 + 0x100,
85 .flags = IORESOURCE_MEM,
86 },
87 [1] = {
88 .start = IRQ_S3CUART_RX2,
89 .end = IRQ_S3CUART_RX2,
90 .flags = IORESOURCE_IRQ,
91 },
92 [2] = {
93 .start = IRQ_S3CUART_TX2,
94 .end = IRQ_S3CUART_TX2,
95 .flags = IORESOURCE_IRQ,
96
97 },
98 [3] = {
99 .start = IRQ_S3CUART_ERR2,
100 .end = IRQ_S3CUART_ERR2,
101 .flags = IORESOURCE_IRQ,
102 },
103};
104
105static struct resource s3c64xx_uart3_resource[] = {
106 [0] = {
107 .start = S3C_PA_UART3,
108 .end = S3C_PA_UART3 + 0x100,
109 .flags = IORESOURCE_MEM,
110 },
111 [1] = {
112 .start = IRQ_S3CUART_RX3,
113 .end = IRQ_S3CUART_RX3,
114 .flags = IORESOURCE_IRQ,
115 },
116 [2] = {
117 .start = IRQ_S3CUART_TX3,
118 .end = IRQ_S3CUART_TX3,
119 .flags = IORESOURCE_IRQ,
120
121 },
122 [3] = {
123 .start = IRQ_S3CUART_ERR3,
124 .end = IRQ_S3CUART_ERR3,
125 .flags = IORESOURCE_IRQ,
126 },
127};
128
129
130struct s3c24xx_uart_resources s3c64xx_uart_resources[] __initdata = {
131 [0] = {
132 .resources = s3c64xx_uart0_resource,
133 .nr_resources = ARRAY_SIZE(s3c64xx_uart0_resource),
134 },
135 [1] = {
136 .resources = s3c64xx_uart1_resource,
137 .nr_resources = ARRAY_SIZE(s3c64xx_uart1_resource),
138 },
139 [2] = {
140 .resources = s3c6xx_uart2_resource,
141 .nr_resources = ARRAY_SIZE(s3c6xx_uart2_resource),
142 },
143 [3] = {
144 .resources = s3c64xx_uart3_resource,
145 .nr_resources = ARRAY_SIZE(s3c64xx_uart3_resource),
146 },
147};
148
149/* uart devices */
150
151static struct platform_device s3c24xx_uart_device0 = {
152 .id = 0,
153};
154
155static struct platform_device s3c24xx_uart_device1 = {
156 .id = 1,
157};
158
159static struct platform_device s3c24xx_uart_device2 = {
160 .id = 2,
161};
162
163static struct platform_device s3c24xx_uart_device3 = {
164 .id = 3,
165};
166
167struct platform_device *s3c24xx_uart_src[4] = {
168 &s3c24xx_uart_device0,
169 &s3c24xx_uart_device1,
170 &s3c24xx_uart_device2,
171 &s3c24xx_uart_device3,
172};
173
174struct platform_device *s3c24xx_uart_devs[4] = {
175};
176
diff --git a/arch/arm/plat-s3c64xx/include/plat/irqs.h b/arch/arm/plat-s3c64xx/include/plat/irqs.h
index 592a56354551..0f207ab2df28 100644
--- a/arch/arm/plat-s3c64xx/include/plat/irqs.h
+++ b/arch/arm/plat-s3c64xx/include/plat/irqs.h
@@ -15,12 +15,45 @@
15 * the ISA space, so that the PC104 has them to itself 15 * the ISA space, so that the PC104 has them to itself
16 * and we don't end up having to do horrible things to the 16 * and we don't end up having to do horrible things to the
17 * standard ISA drivers.... 17 * standard ISA drivers....
18 *
19 * note, since we're using the VICs, our start must be a
20 * mulitple of 32 to allow the common code to work
18 */ 21 */
19 22
20#define S3C_IRQ_OFFSET (16) 23#define S3C_IRQ_OFFSET (32)
21 24
22#define S3C_IRQ(x) ((x) + S3C_IRQ_OFFSET) 25#define S3C_IRQ(x) ((x) + S3C_IRQ_OFFSET)
23 26
27/* UART interrupts, each UART has 4 intterupts per channel so
28 * use the space between the ISA and S3C main interrupts. Note, these
29 * are not in the same order as the S3C24XX series! */
30
31#define IRQ_S3CUART_BASE0 (16)
32#define IRQ_S3CUART_BASE1 (20)
33#define IRQ_S3CUART_BASE2 (24)
34#define IRQ_S3CUART_BASE3 (28)
35
36#define UART_IRQ_RXD (0)
37#define UART_IRQ_ERR (1)
38#define UART_IRQ_TXD (2)
39#define UART_IRQ_MODEM (3)
40
41#define IRQ_S3CUART_RX0 (IRQ_S3CUART_BASE0 + UART_IRQ_RXD)
42#define IRQ_S3CUART_TX0 (IRQ_S3CUART_BASE0 + UART_IRQ_TXD)
43#define IRQ_S3CUART_ERR0 (IRQ_S3CUART_BASE0 + UART_IRQ_ERR)
44
45#define IRQ_S3CUART_RX1 (IRQ_S3CUART_BASE1 + UART_IRQ_RXD)
46#define IRQ_S3CUART_TX1 (IRQ_S3CUART_BASE1 + UART_IRQ_TXD)
47#define IRQ_S3CUART_ERR1 (IRQ_S3CUART_BASE1 + UART_IRQ_ERR)
48
49#define IRQ_S3CUART_RX2 (IRQ_S3CUART_BASE2 + UART_IRQ_RXD)
50#define IRQ_S3CUART_TX2 (IRQ_S3CUART_BASE2 + UART_IRQ_TXD)
51#define IRQ_S3CUART_ERR2 (IRQ_S3CUART_BASE2 + UART_IRQ_ERR)
52
53#define IRQ_S3CUART_RX3 (IRQ_S3CUART_BASE3 + UART_IRQ_RXD)
54#define IRQ_S3CUART_TX3 (IRQ_S3CUART_BASE3 + UART_IRQ_TXD)
55#define IRQ_S3CUART_ERR3 (IRQ_S3CUART_BASE3 + UART_IRQ_ERR)
56
24/* Since the IRQ_EINT(x) are a linear mapping on current s3c64xx series 57/* Since the IRQ_EINT(x) are a linear mapping on current s3c64xx series
25 * we just defined them as an IRQ_EINT(x) macro from S3C_IRQ_EINT_BASE 58 * we just defined them as an IRQ_EINT(x) macro from S3C_IRQ_EINT_BASE
26 * which we place after the pair of VICs. */ 59 * which we place after the pair of VICs. */