diff options
| author | Cédric Le Goater <clg@kaod.org> | 2016-09-06 19:52:17 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2016-09-06 19:52:17 +0100 |
| commit | c2da8a8b90faf0b77417e08fa942af1ff0f7cdc3 (patch) | |
| tree | 2258604fba53b490d84133d84efec72e555be6da /include | |
| parent | 2926375cffce464fde6b4dabaed1e133d549af39 (diff) | |
ast2400: add a memory controller device model
The uboot in the previous release of the SDK was using a hardcoded
value for memory size. This is not true anymore, the value is now
retrieved from the memory controller.
Below is a model for this device, only supporting unlock and
configuration. Without it, we endup running a guest with 64MB, which
is a bit low nowdays. It uses a 'silicon-rev' property and ram_size to
build a default value. Some bits should be linked to SCU strapping
registers but it seems a bit complex to add for the current need.
The model is ready for the AST2500 SOC.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/hw/arm/ast2400.h | 2 | ||||
| -rw-r--r-- | include/hw/misc/aspeed_sdmc.h | 31 |
2 files changed, 33 insertions, 0 deletions
diff --git a/include/hw/arm/ast2400.h b/include/hw/arm/ast2400.h index 7833bc716c..e68807d475 100644 --- a/include/hw/arm/ast2400.h +++ b/include/hw/arm/ast2400.h @@ -15,6 +15,7 @@ #include "hw/arm/arm.h" #include "hw/intc/aspeed_vic.h" #include "hw/misc/aspeed_scu.h" +#include "hw/misc/aspeed_sdmc.h" #include "hw/timer/aspeed_timer.h" #include "hw/i2c/aspeed_i2c.h" #include "hw/ssi/aspeed_smc.h" @@ -32,6 +33,7 @@ typedef struct AST2400State { AspeedSCUState scu; AspeedSMCState smc; AspeedSMCState spi; + AspeedSDMCState sdmc; } AST2400State; #define TYPE_AST2400 "ast2400" diff --git a/include/hw/misc/aspeed_sdmc.h b/include/hw/misc/aspeed_sdmc.h new file mode 100644 index 0000000000..7e081f6d2b --- /dev/null +++ b/include/hw/misc/aspeed_sdmc.h @@ -0,0 +1,31 @@ +/* + * 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 (0x8 >> 2) + +typedef struct AspeedSDMCState { + /*< private >*/ + SysBusDevice parent_obj; + + /*< public >*/ + MemoryRegion iomem; + + uint32_t regs[ASPEED_SDMC_NR_REGS]; + uint32_t silicon_rev; + +} AspeedSDMCState; + +#endif /* ASPEED_SDMC_H */ |