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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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4621d5f8cb
OMAP2420 platform consists of mmc block as in omap1 and not the hsmmc block as present in omap2430, omap3, omap4 platforms. Removing all base address macro defines except keeping one for OMAP2420 and adapting only hsmmc device registration and driver to hwmod framework. Changes involves: 1) Remove controller reset in devices.c which is taken care of by hwmod framework. 2) Using omap-device layer to register device and utilizing data from hwmod data file for base address, dma channel number, Irq_number, device attribute. 3) Update the driver to use dev_attr to find whether controller supports dual volt cards Signed-off-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Kishore Kadiyala <kishore.kadiyala@ti.com> Reviewed-by: Balaji T K <balajitk@ti.com> Cc: Benoit Cousson <b-cousson@ti.com> CC: Kevin Hilman <khilman@deeprootsystems.com> Cc: Tony Lindgren <tony@atomide.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
180 lines
5.0 KiB
C
180 lines
5.0 KiB
C
/*
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* MMC definitions for OMAP2
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*
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* Copyright (C) 2006 Nokia Corporation
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef __OMAP2_MMC_H
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#define __OMAP2_MMC_H
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#include <linux/types.h>
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#include <linux/device.h>
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#include <linux/mmc/host.h>
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#include <plat/board.h>
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#define OMAP15XX_NR_MMC 1
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#define OMAP16XX_NR_MMC 2
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#define OMAP1_MMC_SIZE 0x080
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#define OMAP1_MMC1_BASE 0xfffb7800
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#define OMAP1_MMC2_BASE 0xfffb7c00 /* omap16xx only */
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#define OMAP24XX_NR_MMC 2
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#define OMAP2420_MMC_SIZE OMAP1_MMC_SIZE
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#define OMAP2_MMC1_BASE 0x4809c000
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#define OMAP4_MMC_REG_OFFSET 0x100
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#define OMAP_MMC_MAX_SLOTS 2
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#define OMAP_HSMMC_SUPPORTS_DUAL_VOLT BIT(1)
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struct omap_mmc_dev_attr {
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u8 flags;
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};
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struct omap_mmc_platform_data {
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/* back-link to device */
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struct device *dev;
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/* number of slots per controller */
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unsigned nr_slots:2;
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/* set if your board has components or wiring that limits the
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* maximum frequency on the MMC bus */
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unsigned int max_freq;
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/* switch the bus to a new slot */
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int (*switch_slot)(struct device *dev, int slot);
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/* initialize board-specific MMC functionality, can be NULL if
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* not supported */
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int (*init)(struct device *dev);
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void (*cleanup)(struct device *dev);
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void (*shutdown)(struct device *dev);
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/* To handle board related suspend/resume functionality for MMC */
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int (*suspend)(struct device *dev, int slot);
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int (*resume)(struct device *dev, int slot);
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/* Return context loss count due to PM states changing */
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int (*get_context_loss_count)(struct device *dev);
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u64 dma_mask;
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/* Integrating attributes from the omap_hwmod layer */
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u8 controller_flags;
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/* Register offset deviation */
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u16 reg_offset;
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struct omap_mmc_slot_data {
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/*
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* 4/8 wires and any additional host capabilities
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* need to OR'd all capabilities (ref. linux/mmc/host.h)
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*/
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u8 wires; /* Used for the MMC driver on omap1 and 2420 */
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u32 caps; /* Used for the MMC driver on 2430 and later */
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/*
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* nomux means "standard" muxing is wrong on this board, and
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* that board-specific code handled it before common init logic.
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*/
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unsigned nomux:1;
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/* switch pin can be for card detect (default) or card cover */
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unsigned cover:1;
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/* use the internal clock */
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unsigned internal_clock:1;
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/* nonremovable e.g. eMMC */
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unsigned nonremovable:1;
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/* Try to sleep or power off when possible */
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unsigned power_saving:1;
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/* If using power_saving and the MMC power is not to go off */
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unsigned no_off:1;
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/* Regulator off remapped to sleep */
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unsigned vcc_aux_disable_is_sleep:1;
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/* we can put the features above into this variable */
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#define HSMMC_HAS_PBIAS (1 << 0)
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#define HSMMC_HAS_UPDATED_RESET (1 << 1)
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unsigned features;
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int switch_pin; /* gpio (card detect) */
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int gpio_wp; /* gpio (write protect) */
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int (*set_bus_mode)(struct device *dev, int slot, int bus_mode);
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int (*set_power)(struct device *dev, int slot,
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int power_on, int vdd);
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int (*get_ro)(struct device *dev, int slot);
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int (*set_sleep)(struct device *dev, int slot, int sleep,
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int vdd, int cardsleep);
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void (*remux)(struct device *dev, int slot, int power_on);
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/* Call back before enabling / disabling regulators */
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void (*before_set_reg)(struct device *dev, int slot,
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int power_on, int vdd);
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/* Call back after enabling / disabling regulators */
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void (*after_set_reg)(struct device *dev, int slot,
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int power_on, int vdd);
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/* if we have special card, init it using this callback */
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void (*init_card)(struct mmc_card *card);
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/* return MMC cover switch state, can be NULL if not supported.
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*
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* possible return values:
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* 0 - closed
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* 1 - open
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*/
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int (*get_cover_state)(struct device *dev, int slot);
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const char *name;
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u32 ocr_mask;
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/* Card detection IRQs */
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int card_detect_irq;
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int (*card_detect)(struct device *dev, int slot);
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unsigned int ban_openended:1;
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} slots[OMAP_MMC_MAX_SLOTS];
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};
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/* called from board-specific card detection service routine */
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extern void omap_mmc_notify_cover_event(struct device *dev, int slot,
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int is_closed);
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#if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE) || \
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defined(CONFIG_MMC_OMAP_HS) || defined(CONFIG_MMC_OMAP_HS_MODULE)
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void omap1_init_mmc(struct omap_mmc_platform_data **mmc_data,
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int nr_controllers);
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void omap242x_init_mmc(struct omap_mmc_platform_data **mmc_data);
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int omap_mmc_add(const char *name, int id, unsigned long base,
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unsigned long size, unsigned int irq,
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struct omap_mmc_platform_data *data);
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#else
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static inline void omap1_init_mmc(struct omap_mmc_platform_data **mmc_data,
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int nr_controllers)
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{
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}
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static inline void omap242x_init_mmc(struct omap_mmc_platform_data **mmc_data)
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{
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}
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static inline int omap_mmc_add(const char *name, int id, unsigned long base,
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unsigned long size, unsigned int irq,
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struct omap_mmc_platform_data *data)
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{
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return 0;
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}
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#endif
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#endif
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