diff options
Diffstat (limited to 'arch/m68k/coldfire/m5407.c')
| -rw-r--r-- | arch/m68k/coldfire/m5407.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/arch/m68k/coldfire/m5407.c b/arch/m68k/coldfire/m5407.c new file mode 100644 index 0000000000..b32efb3042 --- /dev/null +++ b/arch/m68k/coldfire/m5407.c @@ -0,0 +1,65 @@ +// SPDX-License-Identifier: GPL-2.0 +/***************************************************************************/ + +/* + * m5407.c -- platform support for ColdFire 5407 based boards + * + * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com) + * Copyright (C) 2000, Lineo (www.lineo.com) + */ + +/***************************************************************************/ + +#include <linux/clkdev.h> +#include <linux/kernel.h> +#include <linux/param.h> +#include <linux/init.h> +#include <linux/io.h> +#include <asm/machdep.h> +#include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/mcfclk.h> + +/***************************************************************************/ + +DEFINE_CLK(pll, "pll.0", MCF_CLK); +DEFINE_CLK(sys, "sys.0", MCF_BUSCLK); + +static struct clk_lookup m5407_clk_lookup[] = { + CLKDEV_INIT(NULL, "pll.0", &clk_pll), + CLKDEV_INIT(NULL, "sys.0", &clk_sys), + CLKDEV_INIT("mcftmr.0", NULL, &clk_sys), + CLKDEV_INIT("mcftmr.1", NULL, &clk_sys), + CLKDEV_INIT("mcfuart.0", NULL, &clk_sys), + CLKDEV_INIT("mcfuart.1", NULL, &clk_sys), + CLKDEV_INIT("imx1-i2c.0", NULL, &clk_sys), +}; + +/***************************************************************************/ + +static void __init m5407_i2c_init(void) +{ +#if IS_ENABLED(CONFIG_I2C_IMX) + writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL5 | MCFSIM_ICR_PRI0, + MCFSIM_I2CICR); + mcf_mapirq2imr(MCF_IRQ_I2C0, MCFINTC_I2C); +#endif /* IS_ENABLED(CONFIG_I2C_IMX) */ +} + +/***************************************************************************/ + +void __init config_BSP(char *commandp, int size) +{ + mach_sched_init = hw_timer_init; + + /* Only support the external interrupts on their primary level */ + mcf_mapirq2imr(25, MCFINTC_EINT1); + mcf_mapirq2imr(27, MCFINTC_EINT3); + mcf_mapirq2imr(29, MCFINTC_EINT5); + mcf_mapirq2imr(31, MCFINTC_EINT7); + m5407_i2c_init(); + + clkdev_add_table(m5407_clk_lookup, ARRAY_SIZE(m5407_clk_lookup)); +} + +/***************************************************************************/ |