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Commit | Line | Data |
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1da177e4 LT |
1 | /***************************************************************************/ |
2 | ||
3 | /* | |
4 | * linux/arch/m68knommu/platform/5206/config.c | |
5 | * | |
6 | * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com) | |
7 | * Copyright (C) 2000-2001, Lineo Inc. (www.lineo.com) | |
8 | */ | |
9 | ||
10 | /***************************************************************************/ | |
11 | ||
1da177e4 | 12 | #include <linux/kernel.h> |
1da177e4 LT |
13 | #include <linux/param.h> |
14 | #include <linux/init.h> | |
9685c43e | 15 | #include <linux/io.h> |
1da177e4 LT |
16 | #include <asm/machdep.h> |
17 | #include <asm/coldfire.h> | |
1da177e4 | 18 | #include <asm/mcfsim.h> |
9685c43e | 19 | #include <asm/mcfuart.h> |
1da177e4 LT |
20 | |
21 | /***************************************************************************/ | |
22 | ||
9685c43e GU |
23 | static struct mcf_platform_uart m5206_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 | ||
35 | static struct platform_device m5206_uart = { | |
36 | .name = "mcfuart", | |
37 | .id = 0, | |
38 | .dev.platform_data = m5206_uart_platform, | |
1da177e4 LT |
39 | }; |
40 | ||
9685c43e GU |
41 | static struct platform_device *m5206_devices[] __initdata = { |
42 | &m5206_uart, | |
43 | }; | |
44 | ||
45 | /***************************************************************************/ | |
46 | ||
47 | static void __init m5206_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); | |
39f0fb6a | 52 | mcf_mapirq2imr(irq, MCFINTC_UART0); |
9685c43e GU |
53 | } else if (line == 1) { |
54 | writel(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI2, MCF_MBAR + MCFSIM_UART2ICR); | |
55 | writeb(irq, MCFUART_BASE2 + MCFUART_UIVR); | |
39f0fb6a | 56 | mcf_mapirq2imr(irq, MCFINTC_UART1); |
9685c43e GU |
57 | } |
58 | } | |
59 | ||
60 | static void __init m5206_uarts_init(void) | |
61 | { | |
62 | const int nrlines = ARRAY_SIZE(m5206_uart_platform); | |
63 | int line; | |
64 | ||
65 | for (line = 0; (line < nrlines); line++) | |
66 | m5206_uart_init_line(line, m5206_uart_platform[line].irq); | |
67 | } | |
1da177e4 LT |
68 | |
69 | /***************************************************************************/ | |
70 | ||
04b75b10 | 71 | static void __init m5206_timers_init(void) |
1da177e4 | 72 | { |
04b75b10 GU |
73 | /* Timer1 is always used as system timer */ |
74 | writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI3, | |
75 | MCF_MBAR + MCFSIM_TIMER1ICR); | |
39f0fb6a | 76 | mcf_mapirq2imr(MCF_IRQ_TIMER, MCFINTC_TIMER1); |
04b75b10 GU |
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); | |
39f0fb6a | 82 | mcf_mapirq2imr(MCF_IRQ_PROFILER, MCFINTC_TIMER2); |
04b75b10 | 83 | #endif |
1da177e4 LT |
84 | } |
85 | ||
86 | /***************************************************************************/ | |
87 | ||
851377bc GU |
88 | void m5206_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 | ||
9685c43e | 99 | void __init config_BSP(char *commandp, int size) |
1da177e4 | 100 | { |
f4a54373 GU |
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 | ||
851377bc | 107 | mach_reset = m5206_cpu_reset; |
04b75b10 | 108 | m5206_timers_init(); |
39f0fb6a GU |
109 | m5206_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); | |
1da177e4 LT |
115 | } |
116 | ||
117 | /***************************************************************************/ | |
9685c43e GU |
118 | |
119 | static int __init init_BSP(void) | |
120 | { | |
9685c43e GU |
121 | platform_add_devices(m5206_devices, ARRAY_SIZE(m5206_devices)); |
122 | return 0; | |
123 | } | |
124 | ||
125 | arch_initcall(init_BSP); | |
126 | ||
127 | /***************************************************************************/ |