1 // SPDX-License-Identifier: GPL-2.0
2 /***************************************************************************/
3
4 /*
5 * m5407.c -- platform support for ColdFire 5407 based boards
6 *
7 * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com)
8 * Copyright (C) 2000, Lineo (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 m5407_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 m5407_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 /***************************************************************************/
50
51 void __init config_BSP(char *commandp, int size)
52 {
53 mach_sched_init = hw_timer_init;
54
55 /* Only support the external interrupts on their primary level */
56 mcf_mapirq2imr(25, MCFINTC_EINT1);
57 mcf_mapirq2imr(27, MCFINTC_EINT3);
58 mcf_mapirq2imr(29, MCFINTC_EINT5);
59 mcf_mapirq2imr(31, MCFINTC_EINT7);
60 m5407_i2c_init();
61
62 clkdev_add_table(m5407_clk_lookup, ARRAY_SIZE(m5407_clk_lookup));
63 }
64
65 /***************************************************************************/
66
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.