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https://github.com/brain-hackers/u-boot-brain
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d2d9bdfcf9
By default saveenv option is not supported for SPL. This patch enable the support for save environment variable for SPL build. Enable save environment support in SPL after setenv. By default the saveenv option is not provided in SPL, but some boards need this support in 'Falcon' boot, where SPL need to boot from different images based on environment variable set by OS. For example OS may set "reboot_image" environment variable to "recovery" inorder to boot recovery image by SPL. The SPL read "reboot_image" and act accordingly and change the reboot_image to default mode using setenv and save the environemnt. Signed-off-by: Ravi Babu <ravibabu@ti.com> Reviewed-by: Simon Glass <sig@chromium.org> change in v1: - dropped SUPPORT, use CONFIG_SPL_SAVEENV - updates the comments in mmc_private.h
139 lines
3.2 KiB
C
139 lines
3.2 KiB
C
/*
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* Copyright 2008,2010 Freescale Semiconductor, Inc
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* Andy Fleming
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*
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* Based (loosely) on the Linux code
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef _MMC_PRIVATE_H_
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#define _MMC_PRIVATE_H_
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#include <mmc.h>
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extern int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd,
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struct mmc_data *data);
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extern int mmc_send_status(struct mmc *mmc, int timeout);
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extern int mmc_set_blocklen(struct mmc *mmc, int len);
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#ifdef CONFIG_FSL_ESDHC_ADAPTER_IDENT
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void mmc_adapter_card_type_ident(void);
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#endif
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#ifdef CONFIG_BLK
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ulong mmc_bread(struct udevice *dev, lbaint_t start, lbaint_t blkcnt,
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void *dst);
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#else
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ulong mmc_bread(struct blk_desc *block_dev, lbaint_t start, lbaint_t blkcnt,
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void *dst);
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#endif
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#if !(defined(CONFIG_SPL_BUILD) && !defined(CONFIG_SPL_SAVEENV))
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unsigned long mmc_berase(struct blk_desc *block_dev, lbaint_t start,
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lbaint_t blkcnt);
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#ifdef CONFIG_BLK
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ulong mmc_bwrite(struct udevice *dev, lbaint_t start, lbaint_t blkcnt,
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const void *src);
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#else
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ulong mmc_bwrite(struct blk_desc *block_dev, lbaint_t start, lbaint_t blkcnt,
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const void *src);
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#endif
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#else /* CONFIG_SPL_BUILD and CONFIG_SPL_SAVEENV is not defined */
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/* declare dummies to reduce code size. */
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#ifdef CONFIG_BLK
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static inline unsigned long mmc_berase(struct udevice *dev,
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lbaint_t start, lbaint_t blkcnt)
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{
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return 0;
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}
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static inline ulong mmc_bwrite(struct udevice *dev, lbaint_t start,
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lbaint_t blkcnt, const void *src)
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{
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return 0;
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}
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#else
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static inline unsigned long mmc_berase(struct blk_desc *block_dev,
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lbaint_t start, lbaint_t blkcnt)
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{
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return 0;
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}
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static inline ulong mmc_bwrite(struct blk_desc *block_dev, lbaint_t start,
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lbaint_t blkcnt, const void *src)
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{
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return 0;
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}
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#endif
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#endif /* CONFIG_SPL_BUILD */
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#ifdef CONFIG_MMC_TRACE
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void mmmc_trace_before_send(struct mmc *mmc, struct mmc_cmd *cmd);
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void mmmc_trace_after_send(struct mmc *mmc, struct mmc_cmd *cmd, int ret);
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void mmc_trace_state(struct mmc *mmc, struct mmc_cmd *cmd);
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#else
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static inline void mmmc_trace_before_send(struct mmc *mmc, struct mmc_cmd *cmd)
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{
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}
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static inline void mmmc_trace_after_send(struct mmc *mmc, struct mmc_cmd *cmd,
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int ret)
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{
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}
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static inline void mmc_trace_state(struct mmc *mmc, struct mmc_cmd *cmd)
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{
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}
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#endif
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/**
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* mmc_get_next_devnum() - Get the next available MMC device number
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*
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* @return next available device number (0 = first), or -ve on error
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*/
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int mmc_get_next_devnum(void);
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/**
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* mmc_do_preinit() - Get an MMC device ready for use
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*/
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void mmc_do_preinit(void);
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/**
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* mmc_list_init() - Set up the list of MMC devices
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*/
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void mmc_list_init(void);
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/**
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* mmc_list_add() - Add a new MMC device to the list of devices
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*
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* @mmc: Device to add
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*/
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void mmc_list_add(struct mmc *mmc);
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/**
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* mmc_switch_part() - Switch to a new MMC hardware partition
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*
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* @mmc: MMC device
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* @part_num: Hardware partition number
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* @return 0 if OK, -ve on error
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*/
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int mmc_switch_part(struct mmc *mmc, unsigned int part_num);
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/**
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* mmc_switch() - Issue and MMC switch mode command
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*
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* @mmc: MMC device
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* @set: Unused
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* @index: Cmdarg index
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* @value: Cmdarg value
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* @return 0 if OK, -ve on error
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*/
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int mmc_switch(struct mmc *mmc, u8 set, u8 index, u8 value);
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#endif /* _MMC_PRIVATE_H_ */
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