xref: /openbmc/linux/arch/m68k/coldfire/m5307.c (revision f86b9e03)
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/mcfwdebug.h>
20 #include <asm/mcfclk.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 DEFINE_CLK(pll, "pll.0", MCF_CLK);
33 DEFINE_CLK(sys, "sys.0", MCF_BUSCLK);
34 DEFINE_CLK(mcftmr0, "mcftmr.0", MCF_BUSCLK);
35 DEFINE_CLK(mcftmr1, "mcftmr.1", MCF_BUSCLK);
36 DEFINE_CLK(mcfuart0, "mcfuart.0", MCF_BUSCLK);
37 DEFINE_CLK(mcfuart1, "mcfuart.1", MCF_BUSCLK);
38 
39 struct clk *mcf_clks[] = {
40 	&clk_pll,
41 	&clk_sys,
42 	&clk_mcftmr0,
43 	&clk_mcftmr1,
44 	&clk_mcfuart0,
45 	&clk_mcfuart1,
46 	NULL
47 };
48 
49 /***************************************************************************/
50 
51 void __init config_BSP(char *commandp, int size)
52 {
53 #if defined(CONFIG_NETtel) || \
54     defined(CONFIG_SECUREEDGEMP3) || defined(CONFIG_CLEOPATRA)
55 	/* Copy command line from FLASH to local buffer... */
56 	memcpy(commandp, (char *) 0xf0004000, size);
57 	commandp[size-1] = 0;
58 #endif
59 
60 	mach_sched_init = hw_timer_init;
61 
62 	/* Only support the external interrupts on their primary level */
63 	mcf_mapirq2imr(25, MCFINTC_EINT1);
64 	mcf_mapirq2imr(27, MCFINTC_EINT3);
65 	mcf_mapirq2imr(29, MCFINTC_EINT5);
66 	mcf_mapirq2imr(31, MCFINTC_EINT7);
67 
68 #ifdef CONFIG_BDM_DISABLE
69 	/*
70 	 * Disable the BDM clocking.  This also turns off most of the rest of
71 	 * the BDM device.  This is good for EMC reasons. This option is not
72 	 * incompatible with the memory protection option.
73 	 */
74 	wdebug(MCFDEBUG_CSR, MCFDEBUG_CSR_PSTCLK);
75 #endif
76 }
77 
78 /***************************************************************************/
79