1b2441318SGreg Kroah-Hartman // SPDX-License-Identifier: GPL-2.0
2f86b9e03SGreg Ungerer /***************************************************************************/
3f86b9e03SGreg Ungerer
4f86b9e03SGreg Ungerer /*
5ece9ae65SGreg Ungerer * 525x.c -- platform support for ColdFire 525x based boards
6f86b9e03SGreg Ungerer *
7f86b9e03SGreg Ungerer * Copyright (C) 2012, Steven King <sfking@fdwdc.com>
8f86b9e03SGreg Ungerer */
9f86b9e03SGreg Ungerer
10f86b9e03SGreg Ungerer /***************************************************************************/
11f86b9e03SGreg Ungerer
1263aadb77SArnd Bergmann #include <linux/clkdev.h>
13f86b9e03SGreg Ungerer #include <linux/kernel.h>
14f86b9e03SGreg Ungerer #include <linux/param.h>
15f86b9e03SGreg Ungerer #include <linux/init.h>
16f86b9e03SGreg Ungerer #include <linux/io.h>
17f86b9e03SGreg Ungerer #include <linux/platform_device.h>
18f86b9e03SGreg Ungerer #include <asm/machdep.h>
19f86b9e03SGreg Ungerer #include <asm/coldfire.h>
20f86b9e03SGreg Ungerer #include <asm/mcfsim.h>
21f86b9e03SGreg Ungerer #include <asm/mcfclk.h>
22f86b9e03SGreg Ungerer
23f86b9e03SGreg Ungerer /***************************************************************************/
24f86b9e03SGreg Ungerer
25f86b9e03SGreg Ungerer DEFINE_CLK(pll, "pll.0", MCF_CLK);
26f86b9e03SGreg Ungerer DEFINE_CLK(sys, "sys.0", MCF_BUSCLK);
27f86b9e03SGreg Ungerer
2863aadb77SArnd Bergmann static struct clk_lookup m525x_clk_lookup[] = {
29*9f668611SRandy Dunlap CLKDEV_INIT(NULL, "pll.0", &clk_pll),
3063aadb77SArnd Bergmann CLKDEV_INIT(NULL, "sys.0", &clk_sys),
3163aadb77SArnd Bergmann CLKDEV_INIT("mcftmr.0", NULL, &clk_sys),
3263aadb77SArnd Bergmann CLKDEV_INIT("mcftmr.1", NULL, &clk_sys),
3363aadb77SArnd Bergmann CLKDEV_INIT("mcfuart.0", NULL, &clk_sys),
3463aadb77SArnd Bergmann CLKDEV_INIT("mcfuart.1", NULL, &clk_sys),
3563aadb77SArnd Bergmann CLKDEV_INIT("mcfqspi.0", NULL, &clk_sys),
3663aadb77SArnd Bergmann CLKDEV_INIT("imx1-i2c.0", NULL, &clk_sys),
3763aadb77SArnd Bergmann CLKDEV_INIT("imx1-i2c.1", NULL, &clk_sys),
38f86b9e03SGreg Ungerer };
39f86b9e03SGreg Ungerer
40f86b9e03SGreg Ungerer /***************************************************************************/
41f86b9e03SGreg Ungerer
m525x_qspi_init(void)42f86b9e03SGreg Ungerer static void __init m525x_qspi_init(void)
43f86b9e03SGreg Ungerer {
44f86b9e03SGreg Ungerer #if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI)
45f86b9e03SGreg Ungerer /* set the GPIO function for the qspi cs gpios */
46f86b9e03SGreg Ungerer /* FIXME: replace with pinmux/pinctl support */
47f86b9e03SGreg Ungerer u32 f = readl(MCFSIM2_GPIOFUNC);
48f86b9e03SGreg Ungerer f |= (1 << MCFQSPI_CS2) | (1 << MCFQSPI_CS1) | (1 << MCFQSPI_CS0);
49f86b9e03SGreg Ungerer writel(f, MCFSIM2_GPIOFUNC);
50f86b9e03SGreg Ungerer
51f86b9e03SGreg Ungerer /* QSPI irq setup */
52f86b9e03SGreg Ungerer writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL4 | MCFSIM_ICR_PRI0,
53f86b9e03SGreg Ungerer MCFSIM_QSPIICR);
54f86b9e03SGreg Ungerer mcf_mapirq2imr(MCF_IRQ_QSPI, MCFINTC_QSPI);
55f86b9e03SGreg Ungerer #endif /* IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) */
56f86b9e03SGreg Ungerer }
57f86b9e03SGreg Ungerer
m525x_i2c_init(void)58f86b9e03SGreg Ungerer static void __init m525x_i2c_init(void)
59f86b9e03SGreg Ungerer {
602d24b532SSteven King #if IS_ENABLED(CONFIG_I2C_IMX)
61f86b9e03SGreg Ungerer u32 r;
62f86b9e03SGreg Ungerer
63f86b9e03SGreg Ungerer /* first I2C controller uses regular irq setup */
64f86b9e03SGreg Ungerer writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL5 | MCFSIM_ICR_PRI0,
65f86b9e03SGreg Ungerer MCFSIM_I2CICR);
66f86b9e03SGreg Ungerer mcf_mapirq2imr(MCF_IRQ_I2C0, MCFINTC_I2C);
67f86b9e03SGreg Ungerer
68f86b9e03SGreg Ungerer /* second I2C controller is completely different */
69f86b9e03SGreg Ungerer r = readl(MCFINTC2_INTPRI_REG(MCF_IRQ_I2C1));
70f86b9e03SGreg Ungerer r &= ~MCFINTC2_INTPRI_BITS(0xf, MCF_IRQ_I2C1);
71f86b9e03SGreg Ungerer r |= MCFINTC2_INTPRI_BITS(0x5, MCF_IRQ_I2C1);
72f86b9e03SGreg Ungerer writel(r, MCFINTC2_INTPRI_REG(MCF_IRQ_I2C1));
732d24b532SSteven King #endif /* IS_ENABLED(CONFIG_I2C_IMX) */
74f86b9e03SGreg Ungerer }
75f86b9e03SGreg Ungerer
76f86b9e03SGreg Ungerer /***************************************************************************/
77f86b9e03SGreg Ungerer
config_BSP(char * commandp,int size)78f86b9e03SGreg Ungerer void __init config_BSP(char *commandp, int size)
79f86b9e03SGreg Ungerer {
80f86b9e03SGreg Ungerer mach_sched_init = hw_timer_init;
81f86b9e03SGreg Ungerer
82f86b9e03SGreg Ungerer m525x_qspi_init();
83f86b9e03SGreg Ungerer m525x_i2c_init();
8463aadb77SArnd Bergmann
8563aadb77SArnd Bergmann clkdev_add_table(m525x_clk_lookup, ARRAY_SIZE(m525x_clk_lookup));
86f86b9e03SGreg Ungerer }
87f86b9e03SGreg Ungerer
88f86b9e03SGreg Ungerer /***************************************************************************/
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