tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/***************************************************************************/
2
3/*
4 * m5307.c -- platform support for ColdFire 5307 based boards
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 */
27unsigned short ppdata;
28unsigned char ledbank = 0xff;
29
30/***************************************************************************/
31
32DEFINE_CLK(pll, "pll.0", MCF_CLK);
33DEFINE_CLK(sys, "sys.0", MCF_BUSCLK);
34DEFINE_CLK(mcftmr0, "mcftmr.0", MCF_BUSCLK);
35DEFINE_CLK(mcftmr1, "mcftmr.1", MCF_BUSCLK);
36DEFINE_CLK(mcfuart0, "mcfuart.0", MCF_BUSCLK);
37DEFINE_CLK(mcfuart1, "mcfuart.1", MCF_BUSCLK);
38DEFINE_CLK(mcfi2c0, "imx1-i2c.0", MCF_BUSCLK);
39
40struct clk *mcf_clks[] = {
41 &clk_pll,
42 &clk_sys,
43 &clk_mcftmr0,
44 &clk_mcftmr1,
45 &clk_mcfuart0,
46 &clk_mcfuart1,
47 &clk_mcfi2c0,
48 NULL
49};
50
51/***************************************************************************/
52
53static void __init m5307_i2c_init(void)
54{
55#if IS_ENABLED(CONFIG_I2C_IMX)
56 writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL5 | MCFSIM_ICR_PRI0,
57 MCFSIM_I2CICR);
58 mcf_mapirq2imr(MCF_IRQ_I2C0, MCFINTC_I2C);
59#endif /* IS_ENABLED(CONFIG_I2C_IMX) */
60}
61
62/***************************************************************************/
63
64void __init config_BSP(char *commandp, int size)
65{
66#if defined(CONFIG_NETtel) || \
67 defined(CONFIG_SECUREEDGEMP3) || defined(CONFIG_CLEOPATRA)
68 /* Copy command line from FLASH to local buffer... */
69 memcpy(commandp, (char *) 0xf0004000, size);
70 commandp[size-1] = 0;
71#endif
72
73 mach_sched_init = hw_timer_init;
74
75 /* Only support the external interrupts on their primary level */
76 mcf_mapirq2imr(25, MCFINTC_EINT1);
77 mcf_mapirq2imr(27, MCFINTC_EINT3);
78 mcf_mapirq2imr(29, MCFINTC_EINT5);
79 mcf_mapirq2imr(31, MCFINTC_EINT7);
80
81#ifdef CONFIG_BDM_DISABLE
82 /*
83 * Disable the BDM clocking. This also turns off most of the rest of
84 * the BDM device. This is good for EMC reasons. This option is not
85 * incompatible with the memory protection option.
86 */
87 wdebug(MCFDEBUG_CSR, MCFDEBUG_CSR_PSTCLK);
88#endif
89 m5307_i2c_init();
90}
91
92/***************************************************************************/