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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 v5 5/9] MmcDxe: add interface to change io width and speed
Date: Sun, 13 Nov 2016 14:47:54 +0800	[thread overview]
Message-ID: <1479019678-12621-6-git-send-email-haojian.zhuang@linaro.org> (raw)
In-Reply-To: <1479019678-12621-1-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>
Tested-by: Ryan Harkin <ryan.harkin@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..a242291 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



  parent reply	other threads:[~2016-11-13  6:48 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-11-13  6:47 [PATCH v5 0/9] enhance MMC Haojian Zhuang
2016-11-13  6:47 ` [PATCH v5 1/9] MmcDxe: wait OCR busy bit free Haojian Zhuang
2016-11-13  6:47 ` [PATCH v5 2/9] MmcDxe: move ECSD into CardInfo structure Haojian Zhuang
2016-11-13  6:47 ` [PATCH v5 3/9] MmcDxe: declare ECSD structure Haojian Zhuang
2016-11-13  6:47 ` [PATCH v5 4/9] MmcDxe: add SPEC_VERS field in CSD structure Haojian Zhuang
2016-11-13  6:47 ` Haojian Zhuang [this message]
2016-11-14 16:12   ` [PATCH v5 5/9] MmcDxe: add interface to change io width and speed Leif Lindholm
2016-11-13  6:47 ` [PATCH v5 6/9] MmcDxe: set io bus width before reading EXTCSD Haojian Zhuang
2016-11-14 16:36   ` Leif Lindholm
2016-11-13  6:47 ` [PATCH v5 7/9] MmcDxe: set iospeed and bus width in SD stack Haojian Zhuang
2016-11-14 17:08   ` Leif Lindholm
2016-11-13  6:47 ` [PATCH v5 8/9] MmcDxe: expand to support multiple blocks Haojian Zhuang
2016-11-14 17:15   ` Leif Lindholm
2016-11-13  6:47 ` [PATCH v5 9/9] PL180: update for indentifying SD Haojian Zhuang
2016-11-14 17:27   ` Leif Lindholm
2016-11-14 15:53 ` [PATCH v5 0/9] enhance MMC Leif Lindholm

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