From: Haojian Zhuang <haojian.zhuang@linaro.org>
To: ryan.harkin@linaro.org, edk2-devel@lists.01.org,
leif.lindholm@linaro.org, ard.biesheuvel@linaro.org
Cc: Haojian Zhuang <haojian.zhuang@linaro.org>
Subject: [PATCH v3 04/10] MmcDxe: add interface to change io width and speed
Date: Wed, 21 Sep 2016 23:02:21 +0800 [thread overview]
Message-ID: <1474470147-23156-5-git-send-email-haojian.zhuang@linaro.org> (raw)
In-Reply-To: <1474470147-23156-1-git-send-email-haojian.zhuang@linaro.org>
By default, MMC is initialized with 1-bit mode and less than 400KHz bus
clock. It causes MMC working inefficiently.
Add the interface to change the bus width and speed.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
---
EmbeddedPkg/Include/Protocol/MmcHost.h | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/EmbeddedPkg/Include/Protocol/MmcHost.h b/EmbeddedPkg/Include/Protocol/MmcHost.h
index 89f2e80..13e99e7 100644
--- a/EmbeddedPkg/Include/Protocol/MmcHost.h
+++ b/EmbeddedPkg/Include/Protocol/MmcHost.h
@@ -131,6 +131,12 @@ typedef EFI_STATUS (EFIAPI *MMC_WRITEBLOCKDATA) (
IN UINT32 *Buffer
);
+typedef EFI_STATUS (EFIAPI *MMC_SETIOS) (
+ IN EFI_MMC_HOST_PROTOCOL *This,
+ IN UINT32 BusClockRate,
+ IN UINT32 BusWidth
+ );
+
struct _EFI_MMC_HOST_PROTOCOL {
@@ -147,6 +153,8 @@ struct _EFI_MMC_HOST_PROTOCOL {
MMC_READBLOCKDATA ReadBlockData;
MMC_WRITEBLOCKDATA WriteBlockData;
+ MMC_SETIOS SetIos;
+
};
#define MMC_HOST_PROTOCOL_REVISION 0x00010001 // 1.1
--
2.7.4
next prev parent reply other threads:[~2016-09-21 15:02 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-21 15:02 [PATCH v3 00/10] enhance mmc Haojian Zhuang
2016-09-21 15:02 ` [PATCH v3 01/10] MmcDxe: wait OCR busy bit free Haojian Zhuang
2016-09-21 15:02 ` [PATCH v3 02/10] MmcDxe: move ECSD into CardInfo structure Haojian Zhuang
2016-09-21 15:02 ` [PATCH v3 03/10] MmcDxe: add SPEC_VERS field in CSD structure Haojian Zhuang
2016-09-21 15:02 ` Haojian Zhuang [this message]
2016-09-21 15:02 ` [PATCH v3 05/10] MmcDxe: declare ECSD structure Haojian Zhuang
2016-09-21 15:02 ` [PATCH v3 06/10] MmcDxe: set io bus width before reading EXTCSD Haojian Zhuang
2016-09-21 15:02 ` [PATCH v3 07/10] MmcDxe: Fix uninitialized mediaid for SD Haojian Zhuang
2016-09-21 15:02 ` [PATCH v3 08/10] MmcDxe: set iospeed and bus width in SD stack Haojian Zhuang
2016-09-21 15:02 ` [PATCH v3 09/10] MmcDxe: expand to support multiple blocks Haojian Zhuang
2016-09-21 15:02 ` [PATCH v3 10/10] PL180: update for indentifying SD Haojian Zhuang
2016-10-11 16:22 ` [PATCH v3 00/10] enhance mmc Ryan Harkin
2016-10-11 16:24 ` Ard Biesheuvel
2016-10-11 16:27 ` Ryan Harkin
2016-10-11 16:28 ` Ard Biesheuvel
2016-10-11 17:03 ` Ryan Harkin
2016-10-11 23:33 ` Haojian Zhuang
2016-10-12 5:32 ` Ryan Harkin
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