From 05def917e113ef95ef712ffd96d614203f5e8397 Mon Sep 17 00:00:00 2001 From: qianfan Zhao Date: Tue, 6 Jun 2023 10:19:33 +0100 Subject: hw: arm: allwinner-sramc: Add SRAM Controller support for R40 Only a few important registers are added, especially the SRAM_VER register. Signed-off-by: qianfan Zhao Reviewed-by: Niek Linnenbank Signed-off-by: Peter Maydell --- include/hw/misc/allwinner-sramc.h | 69 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 69 insertions(+) create mode 100644 include/hw/misc/allwinner-sramc.h (limited to 'include/hw/misc/allwinner-sramc.h') diff --git a/include/hw/misc/allwinner-sramc.h b/include/hw/misc/allwinner-sramc.h new file mode 100644 index 0000000000..66b01b8d04 --- /dev/null +++ b/include/hw/misc/allwinner-sramc.h @@ -0,0 +1,69 @@ +/* + * Allwinner SRAM controller emulation + * + * Copyright (C) 2023 qianfan Zhao + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#ifndef HW_MISC_ALLWINNER_SRAMC_H +#define HW_MISC_ALLWINNER_SRAMC_H + +#include "qom/object.h" +#include "hw/sysbus.h" +#include "qemu/uuid.h" + +/** + * Object model + * @{ + */ +#define TYPE_AW_SRAMC "allwinner-sramc" +#define TYPE_AW_SRAMC_SUN8I_R40 TYPE_AW_SRAMC "-sun8i-r40" +OBJECT_DECLARE_TYPE(AwSRAMCState, AwSRAMCClass, AW_SRAMC) + +/** @} */ + +/** + * Allwinner SRAMC object instance state + */ +struct AwSRAMCState { + /*< private >*/ + SysBusDevice parent_obj; + /*< public >*/ + + /** Maps I/O registers in physical memory */ + MemoryRegion iomem; + + /* registers */ + uint32_t sram_ctl1; + uint32_t sram_ver; + uint32_t sram_soft_entry_reg0; +}; + +/** + * Allwinner SRAM Controller class-level struct. + * + * This struct is filled by each sunxi device specific code + * such that the generic code can use this struct to support + * all devices. + */ +struct AwSRAMCClass { + /*< private >*/ + SysBusDeviceClass parent_class; + /*< public >*/ + + uint32_t sram_version_code; +}; + +#endif /* HW_MISC_ALLWINNER_SRAMC_H */ -- cgit v1.2.3