fc14176ba2
The BCM2835 CPRMAN is the clock manager of the SoC. It is composed of a main oscillator, and several sub-components (PLLs, multiplexers, ...) to generate the BCM2835 clock tree. This commit adds a skeleton of the CPRMAN, with a dummy register read/write implementation. It embeds the main oscillator (xosc) from which all the clocks will be derived. Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Luc Michel <luc@lmichel.fr> Tested-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
38 lines
708 B
C
38 lines
708 B
C
/*
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* BCM2835 CPRMAN clock manager
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*
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* Copyright (c) 2020 Luc Michel <luc@lmichel.fr>
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef HW_MISC_CPRMAN_H
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#define HW_MISC_CPRMAN_H
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#include "hw/sysbus.h"
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#include "hw/qdev-clock.h"
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#define TYPE_BCM2835_CPRMAN "bcm2835-cprman"
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typedef struct BCM2835CprmanState BCM2835CprmanState;
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DECLARE_INSTANCE_CHECKER(BCM2835CprmanState, CPRMAN,
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TYPE_BCM2835_CPRMAN)
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#define CPRMAN_NUM_REGS (0x2000 / sizeof(uint32_t))
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struct BCM2835CprmanState {
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/*< private >*/
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SysBusDevice parent_obj;
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/*< public >*/
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MemoryRegion iomem;
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uint32_t regs[CPRMAN_NUM_REGS];
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uint32_t xosc_freq;
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Clock *xosc;
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};
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#endif
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