1 // SPDX-License-Identifier: GPL-2.0
2 /***************************************************************************/
3
4 /*
5 * m5206.c -- platform support for ColdFire 5206 based boards
6 *
7 * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com)
8 * Copyright (C) 2000-2001, Lineo Inc. (www.lineo.com)
9 */
10
11 /***************************************************************************/
12
13 #include <linux/clkdev.h>
14 #include <linux/kernel.h>
15 #include <linux/param.h>
16 #include <linux/init.h>
17 #include <linux/io.h>
18 #include <asm/machdep.h>
19 #include <asm/coldfire.h>
20 #include <asm/mcfsim.h>
21 #include <asm/mcfclk.h>
22
23 /***************************************************************************/
24
25 DEFINE_CLK(pll, "pll.0", MCF_CLK);
26 DEFINE_CLK(sys, "sys.0", MCF_BUSCLK);
27
28 static struct clk_lookup m5206_clk_lookup[] = {
29 CLKDEV_INIT(NULL, "pll.0", &clk_pll),
30 CLKDEV_INIT(NULL, "sys.0", &clk_sys),
31 CLKDEV_INIT("mcftmr.0", NULL, &clk_sys),
32 CLKDEV_INIT("mcftmr.1", NULL, &clk_sys),
33 CLKDEV_INIT("mcfuart.0", NULL, &clk_sys),
34 CLKDEV_INIT("mcfuart.1", NULL, &clk_sys),
35 CLKDEV_INIT("imx1-i2c.0", NULL, &clk_sys),
36 };
37
38 /***************************************************************************/
39
40 static void __init m5206_i2c_init(void)
41 {
42 #if IS_ENABLED(CONFIG_I2C_IMX)
43 writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL5 | MCFSIM_ICR_PRI0,
44 MCFSIM_I2CICR);
45 mcf_mapirq2imr(MCF_IRQ_I2C0, MCFINTC_I2C);
46 #endif /* IS_ENABLED(CONFIG_I2C_IMX) */
47 }
48
49 void __init config_BSP(char *commandp, int size)
50 {
51 #if defined(CONFIG_NETtel)
52 /* Copy command line from FLASH to local buffer... */
53 memcpy(commandp, (char *) 0xf0004000, size);
54 commandp[size-1] = 0;
55 #endif /* CONFIG_NETtel */
56
57 mach_sched_init = hw_timer_init;
58
59 /* Only support the external interrupts on their primary level */
60 mcf_mapirq2imr(25, MCFINTC_EINT1);
61 mcf_mapirq2imr(28, MCFINTC_EINT4);
62 mcf_mapirq2imr(31, MCFINTC_EINT7);
63 m5206_i2c_init();
64
65 clkdev_add_table(m5206_clk_lookup, ARRAY_SIZE(m5206_clk_lookup));
66 }
67
68 /***************************************************************************/
69
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