ARM: multi_v7_defconfig: Switch BCM2835 to sdhci-iproc.c for MMC
[linux/fpc-iii.git] / arch / m68k / coldfire / m523x.c
bloba191a467eff276a3f2a4a8027592f0c2e09fc9c3
1 /***************************************************************************/
3 /*
4 * m523x.c -- platform support for ColdFire 523x based boards
6 * Sub-architcture dependent initialization code for the Freescale
7 * 523x CPUs.
9 * Copyright (C) 1999-2005, Greg Ungerer (gerg@snapgear.com)
10 * Copyright (C) 2001-2003, SnapGear Inc. (www.snapgear.com)
13 /***************************************************************************/
15 #include <linux/kernel.h>
16 #include <linux/param.h>
17 #include <linux/init.h>
18 #include <linux/io.h>
19 #include <asm/machdep.h>
20 #include <asm/coldfire.h>
21 #include <asm/mcfsim.h>
22 #include <asm/mcfclk.h>
24 /***************************************************************************/
26 DEFINE_CLK(pll, "pll.0", MCF_CLK);
27 DEFINE_CLK(sys, "sys.0", MCF_BUSCLK);
28 DEFINE_CLK(mcfpit0, "mcfpit.0", MCF_CLK);
29 DEFINE_CLK(mcfpit1, "mcfpit.1", MCF_CLK);
30 DEFINE_CLK(mcfpit2, "mcfpit.2", MCF_CLK);
31 DEFINE_CLK(mcfpit3, "mcfpit.3", MCF_CLK);
32 DEFINE_CLK(mcfuart0, "mcfuart.0", MCF_BUSCLK);
33 DEFINE_CLK(mcfuart1, "mcfuart.1", MCF_BUSCLK);
34 DEFINE_CLK(mcfuart2, "mcfuart.2", MCF_BUSCLK);
35 DEFINE_CLK(mcfqspi0, "mcfqspi.0", MCF_BUSCLK);
36 DEFINE_CLK(fec0, "fec.0", MCF_BUSCLK);
38 struct clk *mcf_clks[] = {
39 &clk_pll,
40 &clk_sys,
41 &clk_mcfpit0,
42 &clk_mcfpit1,
43 &clk_mcfpit2,
44 &clk_mcfpit3,
45 &clk_mcfuart0,
46 &clk_mcfuart1,
47 &clk_mcfuart2,
48 &clk_mcfqspi0,
49 &clk_fec0,
50 NULL
53 /***************************************************************************/
55 static void __init m523x_qspi_init(void)
57 #if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI)
58 u16 par;
60 /* setup QSPS pins for QSPI with gpio CS control */
61 writeb(0x1f, MCFGPIO_PAR_QSPI);
62 /* and CS2 & CS3 as gpio */
63 par = readw(MCFGPIO_PAR_TIMER);
64 par &= 0x3f3f;
65 writew(par, MCFGPIO_PAR_TIMER);
66 #endif /* IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) */
69 /***************************************************************************/
71 static void __init m523x_fec_init(void)
73 /* Set multi-function pins to ethernet use */
74 writeb(readb(MCFGPIO_PAR_FECI2C) | 0xf0, MCFGPIO_PAR_FECI2C);
77 /***************************************************************************/
79 void __init config_BSP(char *commandp, int size)
81 mach_sched_init = hw_timer_init;
82 m523x_fec_init();
83 m523x_qspi_init();
86 /***************************************************************************/