8f4b47949f
This patch introduces the SAMA5 support and a generic board file for SAMA5 devices. It also updates the PMC driver to manage clock division which is a requirement since some peripherals can't work at the bus frequency on SAMA5. Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com> Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
49 lines
1.1 KiB
C
49 lines
1.1 KiB
C
/*
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* linux/arch/arm/mach-at91/clock.h
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/clkdev.h>
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#define CLK_TYPE_PRIMARY 0x1
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#define CLK_TYPE_PLL 0x2
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#define CLK_TYPE_PROGRAMMABLE 0x4
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#define CLK_TYPE_PERIPHERAL 0x8
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#define CLK_TYPE_SYSTEM 0x10
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struct clk {
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struct list_head node;
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const char *name; /* unique clock name */
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struct clk_lookup cl;
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unsigned long rate_hz;
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unsigned div; /* parent clock divider */
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struct clk *parent;
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unsigned pid; /* peripheral ID */
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u32 pmc_mask;
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void (*mode)(struct clk *, int);
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unsigned id:3; /* PCK0..4, or 32k/main/a/b */
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unsigned type; /* clock type */
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u16 users;
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};
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extern int __init clk_register(struct clk *clk);
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extern struct clk mck;
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extern struct clk utmi_clk;
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#define CLKDEV_CON_ID(_id, _clk) \
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{ \
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.con_id = _id, \
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.clk = _clk, \
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}
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#define CLKDEV_CON_DEV_ID(_con_id, _dev_id, _clk) \
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{ \
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.con_id = _con_id, \
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.dev_id = _dev_id, \
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.clk = _clk, \
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}
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