From c696e1f2b392af19653e82da26df3c61b85ab5a2 Mon Sep 17 00:00:00 2001 From: Bin Meng Date: Tue, 1 Sep 2020 09:39:02 +0800 Subject: hw/sd: Add Cadence SDHCI emulation MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Cadence SD/SDIO/eMMC Host Controller (SD4HC) is an SDHCI compatible controller. The SDHCI compatible registers start from offset 0x200, which are called Slot Register Set (SRS) in its datasheet. This creates a Cadence SDHCI model built on top of the existing generic SDHCI model. Cadence specific Host Register Set (HRS) is implemented to make guest software happy. Signed-off-by: Bin Meng Acked-by: Philippe Mathieu-Daudé Acked-by: Alistair Francis Message-Id: <1598924352-89526-8-git-send-email-bmeng.cn@gmail.com> Signed-off-by: Alistair Francis --- include/hw/sd/cadence_sdhci.h | 47 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 include/hw/sd/cadence_sdhci.h (limited to 'include/hw/sd') diff --git a/include/hw/sd/cadence_sdhci.h b/include/hw/sd/cadence_sdhci.h new file mode 100644 index 0000000..cd8288b --- /dev/null +++ b/include/hw/sd/cadence_sdhci.h @@ -0,0 +1,47 @@ +/* + * Cadence SDHCI emulation + * + * Copyright (c) 2020 Wind River Systems, Inc. + * + * Author: + * Bin Meng + * + * 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 or + * (at your option) version 3 of the License. + * + * 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 CADENCE_SDHCI_H +#define CADENCE_SDHCI_H + +#include "hw/sd/sdhci.h" + +#define CADENCE_SDHCI_REG_SIZE 0x100 +#define CADENCE_SDHCI_NUM_REGS (CADENCE_SDHCI_REG_SIZE / sizeof(uint32_t)) + +typedef struct CadenceSDHCIState { + SysBusDevice parent; + + MemoryRegion container; + MemoryRegion iomem; + BusState *bus; + + uint32_t regs[CADENCE_SDHCI_NUM_REGS]; + + SDHCIState sdhci; +} CadenceSDHCIState; + +#define TYPE_CADENCE_SDHCI "cadence.sdhci" +#define CADENCE_SDHCI(obj) OBJECT_CHECK(CadenceSDHCIState, (obj), \ + TYPE_CADENCE_SDHCI) + +#endif /* CADENCE_SDHCI_H */ -- cgit v1.1