diff options
Diffstat (limited to 'arch/m68k/platform/5206e/config.c')
-rw-r--r-- | arch/m68k/platform/5206e/config.c | 127 |
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 --- /dev/null +++ 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 | |||
23 | static 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 | |||
35 | static struct platform_device m5206e_uart = { | ||
36 | .name = "mcfuart", | ||
37 | .id = 0, | ||
38 | .dev.platform_data = m5206e_uart_platform, | ||
39 | }; | ||
40 | |||
41 | static struct platform_device *m5206e_devices[] __initdata = { | ||
42 | &m5206e_uart, | ||
43 | }; | ||
44 | |||
45 | /***************************************************************************/ | ||
46 | |||
47 | static 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 | |||
60 | static 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 | |||
71 | static 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 | |||
88 | void 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 | |||
99 | void __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 | |||
119 | static int __init init_BSP(void) | ||
120 | { | ||
121 | platform_add_devices(m5206e_devices, ARRAY_SIZE(m5206e_devices)); | ||
122 | return 0; | ||
123 | } | ||
124 | |||
125 | arch_initcall(init_BSP); | ||
126 | |||
127 | /***************************************************************************/ | ||