[Qemu-devel] [PATCH v13 15/30] hw/arm/exynos4210: add a comment about a very similar SDHCI (Spec. v2) - Philippe Mathieu-Daudé

From: "Philippe Mathieu-Daudé" <f4bug@amsat.org>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Philippe Mathieu-Daudé" <f4bug@amsat.org>,
	qemu-devel@nongnu.org, "Peter Maydell" <peter.maydell@linaro.org>,
	"Alistair Francis" <alistair.francis@xilinx.com>,
	"Edgar E . Iglesias" <edgar.iglesias@xilinx.com>,
	"Fam Zheng" <famz@redhat.com>,
	"Igor Mitsyanko" <i.mitsyanko@gmail.com>,
	"open list:Exynos" <qemu-arm@nongnu.org>
Subject: [Qemu-devel] [PATCH v13 15/30] hw/arm/exynos4210: add a comment about a very similar SDHCI (Spec. v2)
Date: Tue, 13 Feb 2018 01:07:54 -0300	[thread overview]
Message-ID: <20180213040809.26021-16-f4bug@amsat.org> (raw)
In-Reply-To: <20180213040809.26021-1-f4bug@amsat.org>

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Alistair Francis <alistair.francis@xilinx.com>
---
 hw/arm/exynos4210.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/hw/arm/exynos4210.c b/hw/arm/exynos4210.c
index d89322c7ea..06f9d1ffa4 100644
--- a/hw/arm/exynos4210.c
+++ b/hw/arm/exynos4210.c
@@ -377,6 +377,18 @@ Exynos4210State *exynos4210_init(MemoryRegion *system_mem)
         BlockBackend *blk;
         DriveInfo *di;
 
+        /* Compatible with:
+         * - SD Host Controller Specification Version 2.0
+         * - SDIO Specification Version 2.0
+         * - MMC Specification Version 4.3
+         * - SDMA
+         * - ADMA2
+         *
+         * As this part of the Exynos4210 is not publically available,
+         * we used the "HS-MMC Controller S3C2416X RISC Microprocessor"
+         * public datasheet which is very similar (implementing
+         * MMC Specification Version 4.0 being the only difference noted)
+         */
         dev = qdev_create(NULL, TYPE_SYSBUS_SDHCI);
         qdev_prop_set_uint64(dev, "capareg", EXYNOS4210_SDHCI_CAPABILITIES);
         qdev_init_nofail(dev);
-- 
2.16.1
