1 /***************************************************************************/
6 * Copyright (C) 2012, Steven King <sfking@fdwdc.com>
9 /***************************************************************************/
11 #include <linux/kernel.h>
12 #include <linux/param.h>
13 #include <linux/init.h>
15 #include <linux/platform_device.h>
16 #include <asm/machdep.h>
17 #include <asm/coldfire.h>
18 #include <asm/mcfsim.h>
19 #include <asm/mcfclk.h>
21 /***************************************************************************/
23 DEFINE_CLK(pll
, "pll.0", MCF_CLK
);
24 DEFINE_CLK(sys
, "sys.0", MCF_BUSCLK
);
25 DEFINE_CLK(mcftmr0
, "mcftmr.0", MCF_BUSCLK
);
26 DEFINE_CLK(mcftmr1
, "mcftmr.1", MCF_BUSCLK
);
27 DEFINE_CLK(mcfuart0
, "mcfuart.0", MCF_BUSCLK
);
28 DEFINE_CLK(mcfuart1
, "mcfuart.1", MCF_BUSCLK
);
29 DEFINE_CLK(mcfqspi0
, "mcfqspi.0", MCF_BUSCLK
);
31 struct clk
*mcf_clks
[] = {
42 /***************************************************************************/
44 static void __init
m525x_qspi_init(void)
46 #if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI)
47 /* set the GPIO function for the qspi cs gpios */
48 /* FIXME: replace with pinmux/pinctl support */
49 u32 f
= readl(MCFSIM2_GPIOFUNC
);
50 f
|= (1 << MCFQSPI_CS2
) | (1 << MCFQSPI_CS1
) | (1 << MCFQSPI_CS0
);
51 writel(f
, MCFSIM2_GPIOFUNC
);
54 writeb(MCFSIM_ICR_AUTOVEC
| MCFSIM_ICR_LEVEL4
| MCFSIM_ICR_PRI0
,
56 mcf_mapirq2imr(MCF_IRQ_QSPI
, MCFINTC_QSPI
);
57 #endif /* IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) */
60 static void __init
m525x_i2c_init(void)
62 #if IS_ENABLED(CONFIG_I2C_COLDFIRE)
65 /* first I2C controller uses regular irq setup */
66 writeb(MCFSIM_ICR_AUTOVEC
| MCFSIM_ICR_LEVEL5
| MCFSIM_ICR_PRI0
,
68 mcf_mapirq2imr(MCF_IRQ_I2C0
, MCFINTC_I2C
);
70 /* second I2C controller is completely different */
71 r
= readl(MCFINTC2_INTPRI_REG(MCF_IRQ_I2C1
));
72 r
&= ~MCFINTC2_INTPRI_BITS(0xf, MCF_IRQ_I2C1
);
73 r
|= MCFINTC2_INTPRI_BITS(0x5, MCF_IRQ_I2C1
);
74 writel(r
, MCFINTC2_INTPRI_REG(MCF_IRQ_I2C1
));
75 #endif /* IS_ENABLED(CONFIG_I2C_COLDFIRE) */
78 /***************************************************************************/
80 void __init
config_BSP(char *commandp
, int size
)
82 mach_sched_init
= hw_timer_init
;
88 /***************************************************************************/