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-rw-r--r--arch/m68k/platform/5206e/config.c127
1 files changed, 127 insertions, 0 deletions
diff --git a/arch/m68k/platform/5206e/config.c b/arch/m68k/platform/5206e/config.c
new file mode 100644
index 00000000000..942397984c6
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+++ b/arch/m68k/platform/5206e/config.c
@@ -0,0 +1,127 @@
1/***************************************************************************/
2
3/*
4 * linux/arch/m68knommu/platform/5206e/config.c
5 *
6 * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com)
7 */
8
9/***************************************************************************/
10
11#include <linux/kernel.h>
12#include <linux/param.h>
13#include <linux/init.h>
14#include <linux/io.h>
15#include <asm/machdep.h>
16#include <asm/coldfire.h>
17#include <asm/mcfsim.h>
18#include <asm/mcfuart.h>
19#include <asm/mcfdma.h>
20
21/***************************************************************************/
22
23static struct mcf_platform_uart m5206e_uart_platform[] = {
24 {
25 .mapbase = MCF_MBAR + MCFUART_BASE1,
26 .irq = 73,
27 },
28 {
29 .mapbase = MCF_MBAR + MCFUART_BASE2,
30 .irq = 74,
31 },
32 { },
33};
34
35static struct platform_device m5206e_uart = {
36 .name = "mcfuart",
37 .id = 0,
38 .dev.platform_data = m5206e_uart_platform,
39};
40
41static struct platform_device *m5206e_devices[] __initdata = {
42 &m5206e_uart,
43};
44
45/***************************************************************************/
46
47static void __init m5206e_uart_init_line(int line, int irq)
48{
49 if (line == 0) {
50 writel(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI1, MCF_MBAR + MCFSIM_UART1ICR);
51 writeb(irq, MCFUART_BASE1 + MCFUART_UIVR);
52 mcf_mapirq2imr(irq, MCFINTC_UART0);
53 } else if (line == 1) {
54 writel(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI2, MCF_MBAR + MCFSIM_UART2ICR);
55 writeb(irq, MCFUART_BASE2 + MCFUART_UIVR);
56 mcf_mapirq2imr(irq, MCFINTC_UART1);
57 }
58}
59
60static void __init m5206e_uarts_init(void)
61{
62 const int nrlines = ARRAY_SIZE(m5206e_uart_platform);
63 int line;
64
65 for (line = 0; (line < nrlines); line++)
66 m5206e_uart_init_line(line, m5206e_uart_platform[line].irq);
67}
68
69/***************************************************************************/
70
71static void __init m5206e_timers_init(void)
72{
73 /* Timer1 is always used as system timer */
74 writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI3,
75 MCF_MBAR + MCFSIM_TIMER1ICR);
76 mcf_mapirq2imr(MCF_IRQ_TIMER, MCFINTC_TIMER1);
77
78#ifdef CONFIG_HIGHPROFILE
79 /* Timer2 is to be used as a high speed profile timer */
80 writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL7 | MCFSIM_ICR_PRI3,
81 MCF_MBAR + MCFSIM_TIMER2ICR);
82 mcf_mapirq2imr(MCF_IRQ_PROFILER, MCFINTC_TIMER2);
83#endif
84}
85
86/***************************************************************************/
87
88void m5206e_cpu_reset(void)
89{
90 local_irq_disable();
91 /* Set watchdog to soft reset, and enabled */
92 __raw_writeb(0xc0, MCF_MBAR + MCFSIM_SYPCR);
93 for (;;)
94 /* wait for watchdog to timeout */;
95}
96
97/***************************************************************************/
98
99void __init config_BSP(char *commandp, int size)
100{
101#if defined(CONFIG_NETtel)
102 /* Copy command line from FLASH to local buffer... */
103 memcpy(commandp, (char *) 0xf0004000, size);
104 commandp[size-1] = 0;
105#endif /* CONFIG_NETtel */
106
107 mach_reset = m5206e_cpu_reset;
108 m5206e_timers_init();
109 m5206e_uarts_init();
110
111 /* Only support the external interrupts on their primary level */
112 mcf_mapirq2imr(25, MCFINTC_EINT1);
113 mcf_mapirq2imr(28, MCFINTC_EINT4);
114 mcf_mapirq2imr(31, MCFINTC_EINT7);
115}
116
117/***************************************************************************/
118
119static int __init init_BSP(void)
120{
121 platform_add_devices(m5206e_devices, ARRAY_SIZE(m5206e_devices));
122 return 0;
123}
124
125arch_initcall(init_BSP);
126
127/***************************************************************************/