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/kernel.h>
14 #include <linux/param.h>
15 #include <linux/init.h>
16 #include <linux/io.h>
17 #include <asm/machdep.h>
18 #include <asm/coldfire.h>
19 #include <asm/mcfsim.h>
20 #include <asm/mcfclk.h>
21
22 /***************************************************************************/
23
24 DEFINE_CLK(pll, "pll.0", MCF_CLK);
25 DEFINE_CLK(sys, "sys.0", MCF_BUSCLK);
26 DEFINE_CLK(mcftmr0, "mcftmr.0", MCF_BUSCLK);
27 DEFINE_CLK(mcftmr1, "mcftmr.1", MCF_BUSCLK);
28 DEFINE_CLK(mcfuart0, "mcfuart.0", MCF_BUSCLK);
29 DEFINE_CLK(mcfuart1, "mcfuart.1", MCF_BUSCLK);
30 DEFINE_CLK(mcfi2c0, "imx1-i2c.0", MCF_BUSCLK);
31
32 struct clk *mcf_clks[] = {
33 &clk_pll,
34 &clk_sys,
35 &clk_mcftmr0,
36 &clk_mcftmr1,
37 &clk_mcfuart0,
38 &clk_mcfuart1,
39 &clk_mcfi2c0,
40 NULL
41 };
42
43 /***************************************************************************/
44
m5407_i2c_init(void)45 static void __init m5407_i2c_init(void)
46 {
47 #if IS_ENABLED(CONFIG_I2C_IMX)
48 writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL5 | MCFSIM_ICR_PRI0,
49 MCFSIM_I2CICR);
50 mcf_mapirq2imr(MCF_IRQ_I2C0, MCFINTC_I2C);
51 #endif /* IS_ENABLED(CONFIG_I2C_IMX) */
52 }
53
54 /***************************************************************************/
55
config_BSP(char * commandp,int size)56 void __init config_BSP(char *commandp, int size)
57 {
58 mach_sched_init = hw_timer_init;
59
60 /* Only support the external interrupts on their primary level */
61 mcf_mapirq2imr(25, MCFINTC_EINT1);
62 mcf_mapirq2imr(27, MCFINTC_EINT3);
63 mcf_mapirq2imr(29, MCFINTC_EINT5);
64 mcf_mapirq2imr(31, MCFINTC_EINT7);
65 m5407_i2c_init();
66 }
67
68 /***************************************************************************/
69
