+++ /dev/null
-/******************************************************************************
-*
-* Copyright (C) 2013 - 2016 Xilinx, Inc. All rights reserved.
-*
-* Permission is hereby granted, free of charge, to any person obtaining a copy
-* of this software and associated documentation files (the "Software"), to deal
-* in the Software without restriction, including without limitation the rights
-* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-* copies of the Software, and to permit persons to whom the Software is
-* furnished to do so, subject to the following conditions:
-*
-* The above copyright notice and this permission notice shall be included in
-* all copies or substantial portions of the Software.
-*
-* Use of the Software is limited solely to applications:
-* (a) running on a Xilinx device, or
-* (b) that interact with a Xilinx device through a bus or interconnect.
-*
-* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
-* XILINX BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
-* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
-* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-* SOFTWARE.
-*
-* Except as contained in this notice, the name of the Xilinx shall not be used
-* in advertising or otherwise to promote the sale, use or other dealings in
-* this Software without prior written authorization from Xilinx.
-*
-******************************************************************************/
-/*****************************************************************************/
-/**
-*
-* @file xsdps.h
-* @addtogroup sdps_v2_5
-* @{
-* @details
-*
-* This file contains the implementation of XSdPs driver.
-* This driver is used initialize read from and write to the SD card.
-* Features such as switching bus width to 4-bit and switching to high speed,
-* changing clock frequency, block size etc. are supported.
-* SD 2.0 uses 1/4 bus width and speeds of 25/50KHz. Initialization, however
-* is done using 1-bit bus width and 400KHz clock frequency.
-* SD commands are classified as broadcast and addressed. Commands can be
-* those with response only (using only command line) or
-* response + data (using command and data lines).
-* Only one command can be sent at a time. During a data transfer however,
-* when dsta lines are in use, certain commands (which use only the command
-* line) can be sent, most often to obtain status.
-* This driver does not support multi card slots at present.
-*
-* Intialization:
-* This includes initialization on the host controller side to select
-* clock frequency, bus power and default transfer related parameters.
-* The default voltage is 3.3V.
-* On the SD card side, the initialization and identification state diagram is
-* implemented. This resets the card, gives it a unique address/ID and
-* identifies key card related specifications.
-*
-* Data transfer:
-* The SD card is put in tranfer state to read from or write to it.
-* The default block size is 512 bytes and if supported,
-* default bus width is 4-bit and bus speed is High speed.
-* The read and write functions are implemented in polled mode using ADMA2.
-*
-* At any point, when key parameters such as block size or
-* clock/speed or bus width are modified, this driver takes care of
-* maintaining the same selection on host and card.
-* All error bits in host controller are monitored by the driver and in the
-* event one of them is set, driver will clear the interrupt status and
-* communicate failure to the upper layer.
-*
-* File system use:
-* This driver can be used with xilffs library to read and write files to SD.
-* (Please refer to procedure in diskio.c). The file system read/write example
-* in polled mode can used for reference.
-*
-* There is no example for using SD driver without file system at present.
-* However, the driver can be used without the file system. The glue layer
-* in filesytem can be used as reference for the same. The block count
-* passed to the read/write function in one call is limited by the ADMA2
-* descriptor table and hence care will have to be taken to call read/write
-* API's in a loop for large file sizes.
-*
-* Interrupt mode is not supported because it offers no improvement when used
-* with file system.
-*
-* eMMC support:
-* SD driver supports SD and eMMC based on the "enable MMC" parameter in SDK.
-* The features of eMMC supported by the driver will depend on those supported
-* by the host controller. The current driver supports read/write on eMMC card
-* using 4-bit and high speed mode currently.
-*
-* Features not supported include - card write protect, password setting,
-* lock/unlock, interrupts, SDMA mode, programmed I/O mode and
-* 64-bit addressed ADMA2, erase/pre-erase commands.
-*
-* <pre>
-* MODIFICATION HISTORY:
-*
-* Ver Who Date Changes
-* ----- --- -------- -----------------------------------------------
-* 1.00a hk/sg 10/17/13 Initial release
-* 2.0 hk 03/07/14 Version number revised.
-* 2.1 hk 04/18/14 Increase sleep for eMMC switch command.
-* Add sleep for microblaze designs. CR# 781117.
-* 2.2 hk 07/28/14 Make changes to enable use of data cache.
-* 2.3 sk 09/23/14 Send command for relative card address
-* when re-initialization is done.CR# 819614.
-* Use XSdPs_Change_ClkFreq API whenever changing
-* clock.CR# 816586.
-* 2.4 sk 12/04/14 Added support for micro SD without
-* WP/CD. CR# 810655.
-* Checked for DAT Inhibit mask instead of CMD
-* Inhibit mask in Cmd Transfer API.
-* Added Support for SD Card v1.0
-* 2.5 sg 07/09/15 Added SD 3.0 features
-* kvn 07/15/15 Modified the code according to MISRAC-2012.
-* 2.6 sk 10/12/15 Added support for SD card v1.0 CR# 840601.
-* 2.7 sk 11/24/15 Considered the slot type befoe checking CD/WP pins.
-* sk 12/10/15 Added support for MMC cards.
-* 01/08/16 Added workaround for issue in auto tuning mode
-* of SDR50, SDR104 and HS200.
-* sk 02/16/16 Corrected the Tuning logic.
-* sk 03/01/16 Removed Bus Width check for eMMC. CR# 938311.
-* 2.8 sk 04/20/16 Added new workaround for auto tuning.
-* 05/03/16 Standard Speed for SD to 19MHz in ZynqMPSoC. CR#951024
-* 3.0 sk 06/09/16 Added support for mkfs to calculate sector count.
-* sk 07/16/16 Added support for UHS modes.
-* sk 07/07/16 Used usleep API for both arm and microblaze.
-* sk 07/16/16 Added Tap delays accordingly to different SD/eMMC
-* operating modes.
-* sk 08/13/16 Removed sleep.h from xsdps.h as a temporary fix for
-* CR#956899.
-* 3.1 mi 09/07/16 Removed compilation warnings with extra compiler flags.
-* sk 10/13/16 Reduced the delay during power cycle to 1ms as per spec
-* sk 10/19/16 Used emmc_hwreset pin to reset eMMC.
-* sk 11/07/16 Enable Rst_n bit in ext_csd reg if not enabled.
-* sk 11/16/16 Issue DLL reset at 31 iteration to load new zero value.
-*
-* </pre>
-*
-******************************************************************************/
-
-
-#ifndef SDPS_H_
-#define SDPS_H_
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#include "xil_printf.h"
-#include "xil_cache.h"
-#include "xstatus.h"
-#include "xsdps_hw.h"
-#include <string.h>
-
-/************************** Constant Definitions *****************************/
-
-#define XSDPS_CT_ERROR 0x2U /**< Command timeout flag */
-#define MAX_TUNING_COUNT 40U /**< Maximum Tuning count */
-
-/**************************** Type Definitions *******************************/
-
-typedef void (*XSdPs_ConfigTap) (u32 Bank, u32 DeviceId, u32 CardType);
-
-/**
- * This typedef contains configuration information for the device.
- */
-typedef struct {
- u16 DeviceId; /**< Unique ID of device */
- u32 BaseAddress; /**< Base address of the device */
- u32 InputClockHz; /**< Input clock frequency */
- u32 CardDetect; /**< Card Detect */
- u32 WriteProtect; /**< Write Protect */
- u32 BusWidth; /**< Bus Width */
- u32 BankNumber; /**< MIO Bank selection for SD */
- u32 HasEMIO; /**< If SD is connected to EMIO */
-} XSdPs_Config;
-
-/* ADMA2 descriptor table */
-typedef struct {
- u16 Attribute; /**< Attributes of descriptor */
- u16 Length; /**< Length of current dma transfer */
- u32 Address; /**< Address of current dma transfer */
-} XSdPs_Adma2Descriptor;
-
-/**
- * The XSdPs driver instance data. The user is required to allocate a
- * variable of this type for every SD device in the system. A pointer
- * to a variable of this type is then passed to the driver API functions.
- */
-typedef struct {
- XSdPs_Config Config; /**< Configuration structure */
- u32 IsReady; /**< Device is initialized and ready */
- u32 Host_Caps; /**< Capabilities of host controller */
- u32 Host_CapsExt; /**< Extended Capabilities */
- u32 HCS; /**< High capacity support in card */
- u8 CardType; /**< Type of card - SD/MMC/eMMC */
- u8 Card_Version; /**< Card version */
- u8 HC_Version; /**< Host controller version */
- u8 BusWidth; /**< Current operating bus width */
- u32 BusSpeed; /**< Current operating bus speed */
- u8 Switch1v8; /**< 1.8V Switch support */
- u32 CardID[4]; /**< Card ID Register */
- u32 RelCardAddr; /**< Relative Card Address */
- u32 CardSpecData[4]; /**< Card Specific Data Register */
- u32 SectorCount; /**< Sector Count */
- u32 SdCardConfig; /**< Sd Card Configuration Register */
- u32 Mode; /**< Bus Speed Mode */
- XSdPs_ConfigTap Config_TapDelay; /**< Configuring the tap delays */
- /**< ADMA Descriptors */
-#ifdef __ICCARM__
-#pragma data_alignment = 32
- XSdPs_Adma2Descriptor Adma2_DescrTbl[32];
-#pragma data_alignment = 4
-#else
- XSdPs_Adma2Descriptor Adma2_DescrTbl[32] __attribute__ ((aligned(32)));
-#endif
-} XSdPs;
-
-/***************** Macros (Inline Functions) Definitions *********************/
-
-/************************** Function Prototypes ******************************/
-XSdPs_Config *XSdPs_LookupConfig(u16 DeviceId);
-s32 XSdPs_CfgInitialize(XSdPs *InstancePtr, XSdPs_Config *ConfigPtr,
- u32 EffectiveAddr);
-s32 XSdPs_SdCardInitialize(XSdPs *InstancePtr);
-s32 XSdPs_ReadPolled(XSdPs *InstancePtr, u32 Arg, u32 BlkCnt, u8 *Buff);
-s32 XSdPs_WritePolled(XSdPs *InstancePtr, u32 Arg, u32 BlkCnt, const u8 *Buff);
-s32 XSdPs_SetBlkSize(XSdPs *InstancePtr, u16 BlkSize);
-s32 XSdPs_Select_Card (XSdPs *InstancePtr);
-s32 XSdPs_Change_ClkFreq(XSdPs *InstancePtr, u32 SelFreq);
-s32 XSdPs_Change_BusWidth(XSdPs *InstancePtr);
-s32 XSdPs_Change_BusSpeed(XSdPs *InstancePtr);
-s32 XSdPs_Get_BusWidth(XSdPs *InstancePtr, u8 *SCR);
-s32 XSdPs_Get_BusSpeed(XSdPs *InstancePtr, u8 *ReadBuff);
-s32 XSdPs_Pullup(XSdPs *InstancePtr);
-s32 XSdPs_MmcCardInitialize(XSdPs *InstancePtr);
-s32 XSdPs_CardInitialize(XSdPs *InstancePtr);
-s32 XSdPs_Get_Mmc_ExtCsd(XSdPs *InstancePtr, u8 *ReadBuff);
-s32 XSdPs_Set_Mmc_ExtCsd(XSdPs *InstancePtr, u32 Arg);
-#if defined (ARMR5) || defined (__aarch64__)
-void XSdPs_Identify_UhsMode(XSdPs *InstancePtr, u8 *ReadBuff);
-void XSdPs_hsd_sdr25_tapdelay(u32 Bank, u32 DeviceId, u32 CardType);
-void XSdPs_sdr104_hs200_tapdelay(u32 Bank, u32 DeviceId, u32 CardType);
-#endif
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* SD_H_ */
-/** @} */
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