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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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e08016d0f4
The MMC controller on the OMAP2420 is different from those on the OMAP2430, OMAP3 and OMAP4 families - all of the latter are identical. The one on the OMAP2420 is closer to that on OMAP1 chips. Currently, the n8x0 is the only OMAP2420 platform supported in mainline which registers the MMC controller. Upcoming changes to register the controllers using hwmod data are potentially invasive. To reduce the risk, separate out the 2420 controller registration from the common init function and update its only user. Also seperating out mux settings for OMAP2420. Signed-off-by: Anand Gadiyar <gadiyar@ti.com> Signed-off-by: Kishore Kadiyala <kishore.kadiyala@ti.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Madhusudhan Chikkature <madhu.cr@ti.com> Cc: Chris Ball <cjb@laptop.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
189 lines
5.4 KiB
C
189 lines
5.4 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 OMAP34XX_NR_MMC 3
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#define OMAP44XX_NR_MMC 5
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#define OMAP2420_MMC_SIZE OMAP1_MMC_SIZE
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#define OMAP3_HSMMC_SIZE 0x200
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#define OMAP4_HSMMC_SIZE 0x1000
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#define OMAP2_MMC1_BASE 0x4809c000
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#define OMAP2_MMC2_BASE 0x480b4000
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#define OMAP3_MMC3_BASE 0x480ad000
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#define OMAP4_MMC4_BASE 0x480d1000
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#define OMAP4_MMC5_BASE 0x480d5000
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#define OMAP4_MMC_REG_OFFSET 0x100
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#define HSMMC5 (1 << 4)
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#define HSMMC4 (1 << 3)
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#define HSMMC3 (1 << 2)
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#define HSMMC2 (1 << 1)
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#define HSMMC1 (1 << 0)
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#define OMAP_MMC_MAX_SLOTS 2
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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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/* 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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void omap2_init_mmc(struct omap_mmc_platform_data **mmc_data,
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int nr_controllers);
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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 void omap2_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 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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