aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux/cns21xx/patches-3.3/101-cns21xx-serial-support.patch
blob: 05ad3e46824ceca610e97fffc9feae25e07ab67a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
--- a/arch/arm/mach-cns21xx/common.h
+++ b/arch/arm/mach-cns21xx/common.h
@@ -16,4 +16,7 @@ void cns21xx_init_irq(void);
 
 extern struct sys_timer cns21xx_timer;
 
+int cns21xx_register_uart0(void);
+int cns21xx_register_uart1(void);
+
 #endif /* _MACH_CNS21XX_COMMON_H */
--- /dev/null
+++ b/arch/arm/mach-cns21xx/devices.c
@@ -0,0 +1,79 @@
+/*
+ *  Copyright (c) 2008 Cavium Networks
+ *  Copyright (c) 2010-2012 Gabor Juhos <juhosg@openwrt.org>
+ *
+ *  This file 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 <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/serial_8250.h>
+
+#include <mach/irqs.h>
+#include <mach/hardware.h>
+#include <mach/cns21xx.h>
+#include <mach/cns21xx_misc.h>
+
+#define CNS21XX_UART_CLOCK	24000000
+
+#define CNS21XX_UART_FLAGS (UPF_SKIP_TEST | UPF_FIXED_TYPE | UPF_NO_TXEN_TEST)
+
+static struct plat_serial8250_port cns21xx_uart0_data[] = {
+	{
+		.mapbase	= CNS21XX_UART0_BASE,
+		.membase	= (void *) CNS21XX_UART0_BASE_VIRT,
+		.irq		= CNS21XX_IRQ_UART0,
+		.uartclk	= CNS21XX_UART_CLOCK,
+		.regshift	= 2,
+		.iotype		= UPIO_MEM,
+		.type		= PORT_16550A,
+		.flags		= CNS21XX_UART_FLAGS,
+	}, {
+		/* terminating entry */
+	},
+};
+
+static struct platform_device cns21xx_uart0_device = {
+	.name	= "serial8250",
+	.id	= PLAT8250_DEV_PLATFORM,
+	.dev	= {
+		.platform_data = cns21xx_uart0_data,
+	},
+};
+
+int __init cns21xx_register_uart0(void)
+{
+	return platform_device_register(&cns21xx_uart0_device);
+}
+
+static struct plat_serial8250_port cns21xx_uart1_data[] = {
+	{
+		.mapbase	= CNS21XX_UART1_BASE,
+		.membase	= (void *) CNS21XX_UART1_BASE_VIRT,
+		.irq		= CNS21XX_IRQ_UART1,
+		.uartclk	= CNS21XX_UART_CLOCK,
+		.regshift	= 2,
+		.iotype		= UPIO_MEM,
+		.type		= PORT_16550A,
+		.flags		= CNS21XX_UART_FLAGS,
+	}, {
+		/* terminating entry */
+	},
+};
+
+static struct platform_device cns21xx_uart1_device = {
+	.name	= "serial8250",
+	.id	= PLAT8250_DEV_PLATFORM1,
+	.dev	= {
+		.platform_data = cns21xx_uart1_data,
+	},
+};
+
+int __init cns21xx_register_uart1(void)
+{
+	HAL_MISC_ENABLE_UART1_PINS();
+	return platform_device_register(&cns21xx_uart1_device);
+}
--- a/arch/arm/mach-cns21xx/Makefile
+++ b/arch/arm/mach-cns21xx/Makefile
@@ -4,7 +4,7 @@
 
 # Object file lists.
 
-obj-y		:= core.o irq.o mm.o time.o
+obj-y		:= core.o devices.o irq.o mm.o time.o
 
 # machine specific files