qemu/include/hw/misc/aspeed_sdmc.h
Cédric Le Goater ebe31c0a8e aspeed: add a max_ram_size property to the memory controller
This will be used to construct a memory region beyond the RAM region
to let firmwares scan the address space with load/store to guess how
much RAM the SoC has.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Joel Stanley <joel@jms.id.au>
Tested-by: Cédric Le Goater <clg@kaod.org>
Message-id: 20180807075757.7242-7-joel@jms.id.au
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-08-16 14:29:58 +01:00

36 lines
760 B
C

/*
* ASPEED SDRAM Memory Controller
*
* Copyright (C) 2016 IBM Corp.
*
* This code is licensed under the GPL version 2 or later. See the
* COPYING file in the top-level directory.
*/
#ifndef ASPEED_SDMC_H
#define ASPEED_SDMC_H
#include "hw/sysbus.h"
#define TYPE_ASPEED_SDMC "aspeed.sdmc"
#define ASPEED_SDMC(obj) OBJECT_CHECK(AspeedSDMCState, (obj), TYPE_ASPEED_SDMC)
#define ASPEED_SDMC_NR_REGS (0x174 >> 2)
typedef struct AspeedSDMCState {
/*< private >*/
SysBusDevice parent_obj;
/*< public >*/
MemoryRegion iomem;
uint32_t regs[ASPEED_SDMC_NR_REGS];
uint32_t silicon_rev;
uint32_t ram_bits;
uint64_t ram_size;
uint64_t max_ram_size;
uint32_t fixed_conf;
} AspeedSDMCState;
#endif /* ASPEED_SDMC_H */