diff options
Diffstat (limited to 'arch/m68k/platform/5307/config.c')
-rw-r--r-- | arch/m68k/platform/5307/config.c | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/arch/m68k/platform/5307/config.c b/arch/m68k/platform/5307/config.c new file mode 100644 index 000000000000..00900ac06a9c --- /dev/null +++ b/arch/m68k/platform/5307/config.c | |||
@@ -0,0 +1,147 @@ | |||
1 | /***************************************************************************/ | ||
2 | |||
3 | /* | ||
4 | * linux/arch/m68knommu/platform/5307/config.c | ||
5 | * | ||
6 | * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com) | ||
7 | * Copyright (C) 2000, Lineo (www.lineo.com) | ||
8 | */ | ||
9 | |||
10 | /***************************************************************************/ | ||
11 | |||
12 | #include <linux/kernel.h> | ||
13 | #include <linux/param.h> | ||
14 | #include <linux/init.h> | ||
15 | #include <linux/io.h> | ||
16 | #include <asm/machdep.h> | ||
17 | #include <asm/coldfire.h> | ||
18 | #include <asm/mcfsim.h> | ||
19 | #include <asm/mcfuart.h> | ||
20 | #include <asm/mcfwdebug.h> | ||
21 | |||
22 | /***************************************************************************/ | ||
23 | |||
24 | /* | ||
25 | * Some platforms need software versions of the GPIO data registers. | ||
26 | */ | ||
27 | unsigned short ppdata; | ||
28 | unsigned char ledbank = 0xff; | ||
29 | |||
30 | /***************************************************************************/ | ||
31 | |||
32 | static struct mcf_platform_uart m5307_uart_platform[] = { | ||
33 | { | ||
34 | .mapbase = MCF_MBAR + MCFUART_BASE1, | ||
35 | .irq = 73, | ||
36 | }, | ||
37 | { | ||
38 | .mapbase = MCF_MBAR + MCFUART_BASE2, | ||
39 | .irq = 74, | ||
40 | }, | ||
41 | { }, | ||
42 | }; | ||
43 | |||
44 | static struct platform_device m5307_uart = { | ||
45 | .name = "mcfuart", | ||
46 | .id = 0, | ||
47 | .dev.platform_data = m5307_uart_platform, | ||
48 | }; | ||
49 | |||
50 | static struct platform_device *m5307_devices[] __initdata = { | ||
51 | &m5307_uart, | ||
52 | }; | ||
53 | |||
54 | /***************************************************************************/ | ||
55 | |||
56 | static void __init m5307_uart_init_line(int line, int irq) | ||
57 | { | ||
58 | if (line == 0) { | ||
59 | writeb(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI1, MCF_MBAR + MCFSIM_UART1ICR); | ||
60 | writeb(irq, MCF_MBAR + MCFUART_BASE1 + MCFUART_UIVR); | ||
61 | mcf_mapirq2imr(irq, MCFINTC_UART0); | ||
62 | } else if (line == 1) { | ||
63 | writeb(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI2, MCF_MBAR + MCFSIM_UART2ICR); | ||
64 | writeb(irq, MCF_MBAR + MCFUART_BASE2 + MCFUART_UIVR); | ||
65 | mcf_mapirq2imr(irq, MCFINTC_UART1); | ||
66 | } | ||
67 | } | ||
68 | |||
69 | static void __init m5307_uarts_init(void) | ||
70 | { | ||
71 | const int nrlines = ARRAY_SIZE(m5307_uart_platform); | ||
72 | int line; | ||
73 | |||
74 | for (line = 0; (line < nrlines); line++) | ||
75 | m5307_uart_init_line(line, m5307_uart_platform[line].irq); | ||
76 | } | ||
77 | |||
78 | /***************************************************************************/ | ||
79 | |||
80 | static void __init m5307_timers_init(void) | ||
81 | { | ||
82 | /* Timer1 is always used as system timer */ | ||
83 | writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI3, | ||
84 | MCF_MBAR + MCFSIM_TIMER1ICR); | ||
85 | mcf_mapirq2imr(MCF_IRQ_TIMER, MCFINTC_TIMER1); | ||
86 | |||
87 | #ifdef CONFIG_HIGHPROFILE | ||
88 | /* Timer2 is to be used as a high speed profile timer */ | ||
89 | writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL7 | MCFSIM_ICR_PRI3, | ||
90 | MCF_MBAR + MCFSIM_TIMER2ICR); | ||
91 | mcf_mapirq2imr(MCF_IRQ_PROFILER, MCFINTC_TIMER2); | ||
92 | #endif | ||
93 | } | ||
94 | |||
95 | /***************************************************************************/ | ||
96 | |||
97 | void m5307_cpu_reset(void) | ||
98 | { | ||
99 | local_irq_disable(); | ||
100 | /* Set watchdog to soft reset, and enabled */ | ||
101 | __raw_writeb(0xc0, MCF_MBAR + MCFSIM_SYPCR); | ||
102 | for (;;) | ||
103 | /* wait for watchdog to timeout */; | ||
104 | } | ||
105 | |||
106 | /***************************************************************************/ | ||
107 | |||
108 | void __init config_BSP(char *commandp, int size) | ||
109 | { | ||
110 | #if defined(CONFIG_NETtel) || \ | ||
111 | defined(CONFIG_SECUREEDGEMP3) || defined(CONFIG_CLEOPATRA) | ||
112 | /* Copy command line from FLASH to local buffer... */ | ||
113 | memcpy(commandp, (char *) 0xf0004000, size); | ||
114 | commandp[size-1] = 0; | ||
115 | #endif | ||
116 | |||
117 | mach_reset = m5307_cpu_reset; | ||
118 | m5307_timers_init(); | ||
119 | m5307_uarts_init(); | ||
120 | |||
121 | /* Only support the external interrupts on their primary level */ | ||
122 | mcf_mapirq2imr(25, MCFINTC_EINT1); | ||
123 | mcf_mapirq2imr(27, MCFINTC_EINT3); | ||
124 | mcf_mapirq2imr(29, MCFINTC_EINT5); | ||
125 | mcf_mapirq2imr(31, MCFINTC_EINT7); | ||
126 | |||
127 | #ifdef CONFIG_BDM_DISABLE | ||
128 | /* | ||
129 | * Disable the BDM clocking. This also turns off most of the rest of | ||
130 | * the BDM device. This is good for EMC reasons. This option is not | ||
131 | * incompatible with the memory protection option. | ||
132 | */ | ||
133 | wdebug(MCFDEBUG_CSR, MCFDEBUG_CSR_PSTCLK); | ||
134 | #endif | ||
135 | } | ||
136 | |||
137 | /***************************************************************************/ | ||
138 | |||
139 | static int __init init_BSP(void) | ||
140 | { | ||
141 | platform_add_devices(m5307_devices, ARRAY_SIZE(m5307_devices)); | ||
142 | return 0; | ||
143 | } | ||
144 | |||
145 | arch_initcall(init_BSP); | ||
146 | |||
147 | /***************************************************************************/ | ||