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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
| commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
| tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /arch/m68k/coldfire/m5206.c | |
| parent | Initial commit. (diff) | |
| download | linux-upstream.tar.xz linux-upstream.zip | |
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/m68k/coldfire/m5206.c')
| -rw-r--r-- | arch/m68k/coldfire/m5206.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/arch/m68k/coldfire/m5206.c b/arch/m68k/coldfire/m5206.c new file mode 100644 index 000000000..5e726e94b --- /dev/null +++ b/arch/m68k/coldfire/m5206.c @@ -0,0 +1,68 @@ +// SPDX-License-Identifier: GPL-2.0 +/***************************************************************************/ + +/* + * m5206.c -- platform support for ColdFire 5206 based boards + * + * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com) + * Copyright (C) 2000-2001, Lineo Inc. (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 m5206_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 m5206_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) +{ +#if defined(CONFIG_NETtel) + /* Copy command line from FLASH to local buffer... */ + memcpy(commandp, (char *) 0xf0004000, size); + commandp[size-1] = 0; +#endif /* CONFIG_NETtel */ + + mach_sched_init = hw_timer_init; + + /* Only support the external interrupts on their primary level */ + mcf_mapirq2imr(25, MCFINTC_EINT1); + mcf_mapirq2imr(28, MCFINTC_EINT4); + mcf_mapirq2imr(31, MCFINTC_EINT7); + m5206_i2c_init(); + + clkdev_add_table(m5206_clk_lookup, ARRAY_SIZE(m5206_clk_lookup)); +} + +/***************************************************************************/ |