diff options
Diffstat (limited to 'arch/m68k/platform/5272/config.c')
-rw-r--r-- | arch/m68k/platform/5272/config.c | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/arch/m68k/platform/5272/config.c b/arch/m68k/platform/5272/config.c new file mode 100644 index 000000000000..65bb582734e1 --- /dev/null +++ b/arch/m68k/platform/5272/config.c | |||
@@ -0,0 +1,176 @@ | |||
1 | /***************************************************************************/ | ||
2 | |||
3 | /* | ||
4 | * linux/arch/m68knommu/platform/5272/config.c | ||
5 | * | ||
6 | * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com) | ||
7 | * Copyright (C) 2001-2002, SnapGear Inc. (www.snapgear.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 <linux/phy.h> | ||
17 | #include <linux/phy_fixed.h> | ||
18 | #include <asm/machdep.h> | ||
19 | #include <asm/coldfire.h> | ||
20 | #include <asm/mcfsim.h> | ||
21 | #include <asm/mcfuart.h> | ||
22 | |||
23 | /***************************************************************************/ | ||
24 | |||
25 | /* | ||
26 | * Some platforms need software versions of the GPIO data registers. | ||
27 | */ | ||
28 | unsigned short ppdata; | ||
29 | unsigned char ledbank = 0xff; | ||
30 | |||
31 | /***************************************************************************/ | ||
32 | |||
33 | static struct mcf_platform_uart m5272_uart_platform[] = { | ||
34 | { | ||
35 | .mapbase = MCF_MBAR + MCFUART_BASE1, | ||
36 | .irq = MCF_IRQ_UART1, | ||
37 | }, | ||
38 | { | ||
39 | .mapbase = MCF_MBAR + MCFUART_BASE2, | ||
40 | .irq = MCF_IRQ_UART2, | ||
41 | }, | ||
42 | { }, | ||
43 | }; | ||
44 | |||
45 | static struct platform_device m5272_uart = { | ||
46 | .name = "mcfuart", | ||
47 | .id = 0, | ||
48 | .dev.platform_data = m5272_uart_platform, | ||
49 | }; | ||
50 | |||
51 | static struct resource m5272_fec_resources[] = { | ||
52 | { | ||
53 | .start = MCF_MBAR + 0x840, | ||
54 | .end = MCF_MBAR + 0x840 + 0x1cf, | ||
55 | .flags = IORESOURCE_MEM, | ||
56 | }, | ||
57 | { | ||
58 | .start = MCF_IRQ_ERX, | ||
59 | .end = MCF_IRQ_ERX, | ||
60 | .flags = IORESOURCE_IRQ, | ||
61 | }, | ||
62 | { | ||
63 | .start = MCF_IRQ_ETX, | ||
64 | .end = MCF_IRQ_ETX, | ||
65 | .flags = IORESOURCE_IRQ, | ||
66 | }, | ||
67 | { | ||
68 | .start = MCF_IRQ_ENTC, | ||
69 | .end = MCF_IRQ_ENTC, | ||
70 | .flags = IORESOURCE_IRQ, | ||
71 | }, | ||
72 | }; | ||
73 | |||
74 | static struct platform_device m5272_fec = { | ||
75 | .name = "fec", | ||
76 | .id = 0, | ||
77 | .num_resources = ARRAY_SIZE(m5272_fec_resources), | ||
78 | .resource = m5272_fec_resources, | ||
79 | }; | ||
80 | |||
81 | static struct platform_device *m5272_devices[] __initdata = { | ||
82 | &m5272_uart, | ||
83 | &m5272_fec, | ||
84 | }; | ||
85 | |||
86 | /***************************************************************************/ | ||
87 | |||
88 | static void __init m5272_uart_init_line(int line, int irq) | ||
89 | { | ||
90 | u32 v; | ||
91 | |||
92 | if ((line >= 0) && (line < 2)) { | ||
93 | /* Enable the output lines for the serial ports */ | ||
94 | v = readl(MCF_MBAR + MCFSIM_PBCNT); | ||
95 | v = (v & ~0x000000ff) | 0x00000055; | ||
96 | writel(v, MCF_MBAR + MCFSIM_PBCNT); | ||
97 | |||
98 | v = readl(MCF_MBAR + MCFSIM_PDCNT); | ||
99 | v = (v & ~0x000003fc) | 0x000002a8; | ||
100 | writel(v, MCF_MBAR + MCFSIM_PDCNT); | ||
101 | } | ||
102 | } | ||
103 | |||
104 | static void __init m5272_uarts_init(void) | ||
105 | { | ||
106 | const int nrlines = ARRAY_SIZE(m5272_uart_platform); | ||
107 | int line; | ||
108 | |||
109 | for (line = 0; (line < nrlines); line++) | ||
110 | m5272_uart_init_line(line, m5272_uart_platform[line].irq); | ||
111 | } | ||
112 | |||
113 | /***************************************************************************/ | ||
114 | |||
115 | static void m5272_cpu_reset(void) | ||
116 | { | ||
117 | local_irq_disable(); | ||
118 | /* Set watchdog to reset, and enabled */ | ||
119 | __raw_writew(0, MCF_MBAR + MCFSIM_WIRR); | ||
120 | __raw_writew(1, MCF_MBAR + MCFSIM_WRRR); | ||
121 | __raw_writew(0, MCF_MBAR + MCFSIM_WCR); | ||
122 | for (;;) | ||
123 | /* wait for watchdog to timeout */; | ||
124 | } | ||
125 | |||
126 | /***************************************************************************/ | ||
127 | |||
128 | void __init config_BSP(char *commandp, int size) | ||
129 | { | ||
130 | #if defined (CONFIG_MOD5272) | ||
131 | volatile unsigned char *pivrp; | ||
132 | |||
133 | /* Set base of device vectors to be 64 */ | ||
134 | pivrp = (volatile unsigned char *) (MCF_MBAR + MCFSIM_PIVR); | ||
135 | *pivrp = 0x40; | ||
136 | #endif | ||
137 | |||
138 | #if defined(CONFIG_NETtel) || defined(CONFIG_SCALES) | ||
139 | /* Copy command line from FLASH to local buffer... */ | ||
140 | memcpy(commandp, (char *) 0xf0004000, size); | ||
141 | commandp[size-1] = 0; | ||
142 | #elif defined(CONFIG_CANCam) | ||
143 | /* Copy command line from FLASH to local buffer... */ | ||
144 | memcpy(commandp, (char *) 0xf0010000, size); | ||
145 | commandp[size-1] = 0; | ||
146 | #endif | ||
147 | |||
148 | mach_reset = m5272_cpu_reset; | ||
149 | } | ||
150 | |||
151 | /***************************************************************************/ | ||
152 | |||
153 | /* | ||
154 | * Some 5272 based boards have the FEC ethernet diectly connected to | ||
155 | * an ethernet switch. In this case we need to use the fixed phy type, | ||
156 | * and we need to declare it early in boot. | ||
157 | */ | ||
158 | static struct fixed_phy_status nettel_fixed_phy_status __initdata = { | ||
159 | .link = 1, | ||
160 | .speed = 100, | ||
161 | .duplex = 0, | ||
162 | }; | ||
163 | |||
164 | /***************************************************************************/ | ||
165 | |||
166 | static int __init init_BSP(void) | ||
167 | { | ||
168 | m5272_uarts_init(); | ||
169 | fixed_phy_add(PHY_POLL, 0, &nettel_fixed_phy_status); | ||
170 | platform_add_devices(m5272_devices, ARRAY_SIZE(m5272_devices)); | ||
171 | return 0; | ||
172 | } | ||
173 | |||
174 | arch_initcall(init_BSP); | ||
175 | |||
176 | /***************************************************************************/ | ||