/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright ( C ) 2016 Marvell , All Rights Reserved .
*
* Author : Hu Ziji < huziji @ marvell . com >
* Date : 2016 - 8 - 24
*/
#ifndef SDHCI_XENON_H_
#define SDHCI_XENON_H_
/* Register Offset of Xenon SDHC self-defined register */
#define XENON_SYS_CFG_INFO 0 x0104
#define XENON_SLOT_TYPE_SDIO_SHIFT 24
#define XENON_NR_SUPPORTED_SLOT_MASK 0 x7
#define XENON_SYS_OP_CTRL 0 x0108
#define XENON_AUTO_CLKGATE_DISABLE_MASK BIT(20 )
#define XENON_SDCLK_IDLEOFF_ENABLE_SHIFT 8
#define XENON_SLOT_ENABLE_SHIFT 0
#define XENON_SYS_EXT_OP_CTRL 0 x010C
#define XENON_MASK_CMD_CONFLICT_ERR BIT(8 )
#define XENON_SLOT_OP_STATUS_CTRL 0 x0128
#define XENON_TUN_CONSECUTIVE_TIMES_SHIFT 16
#define XENON_TUN_CONSECUTIVE_TIMES_MASK 0 x7
#define XENON_TUN_CONSECUTIVE_TIMES 0 x4
#define XENON_TUNING_STEP_SHIFT 12
#define XENON_TUNING_STEP_MASK 0 xF
#define XENON_TUNING_STEP_DIVIDER BIT(6 )
#define XENON_SLOT_EMMC_CTRL 0 x0130
#define XENON_ENABLE_RESP_STROBE BIT(25 )
#define XENON_ENABLE_DATA_STROBE BIT(24 )
#define XENON_SLOT_RETUNING_REQ_CTRL 0 x0144
/* retuning compatible */
#define XENON_RETUNING_COMPATIBLE 0 x1
#define XENON_SLOT_EXT_PRESENT_STATE 0 x014C
#define XENON_DLL_LOCK_STATE 0 x1
#define XENON_SLOT_DLL_CUR_DLY_VAL 0 x0150
/* Tuning Parameter */
#define XENON_TMR_RETUN_NO_PRESENT 0 xF
#define XENON_DEF_TUNING_COUNT 0 x9
#define XENON_DEFAULT_SDCLK_FREQ 400000
#define XENON_LOWEST_SDCLK_FREQ 100000
/* Xenon specific Mode Select value */
#define XENON_CTRL_HS200 0 x5
#define XENON_CTRL_HS400 0 x6
enum xenon_variant {
XENON_A3700,
XENON_AP806,
XENON_AP807,
XENON_CP110,
XENON_AC5
};
struct xenon_priv {
unsigned char tuning_count;
/* idx of SDHC */
u8 sdhc_id;
/*
* eMMC / SD / SDIO require different register settings .
* Xenon driver has to recognize card type
* before mmc_host - > card is not available .
* This field records the card type during init .
* It is updated in xenon_init_card ( ) .
*
* It is only valid during initialization after it is updated .
* Do not access this variable in normal transfers after
* initialization completes .
*/
unsigned int init_card_type;
/*
* The bus_width , timing , and clock fields in below
* record the current ios setting of Xenon SDHC .
* Driver will adjust PHY setting if any change to
* ios affects PHY timing .
*/
unsigned char bus_width;
unsigned char timing;
unsigned int clock;
struct clk *axi_clk;
int phy_type;
/*
* Contains board - specific PHY parameters
* passed from device tree .
*/
void *phy_params;
struct xenon_emmc_phy_regs *emmc_phy_regs;
bool restore_needed;
enum xenon_variant hw_version;
};
int xenon_phy_adj(struct sdhci_host *host, struct mmc_ios *ios);
int xenon_phy_parse_params(struct device *dev,
struct sdhci_host *host);
void xenon_soc_pad_ctrl(struct sdhci_host *host,
unsigned char signal_voltage);
#endif
Messung V0.5 in Prozent C=92 H=100 G=95
¤ Dauer der Verarbeitung: 0.8 Sekunden
(vorverarbeitet am 2026-09-29)
¤
*© Formatika GbR, Deutschland