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(val: MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL5 | MCFSIM_ICR_PRI0, |
44 | addr: 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 | |