drivers/spi: provide a mechanism to obtain the SPI flash boot device
The MRC cache wants to be able to access the SPI flash boot device. Allow an easy way to provide that so that there isn't duplicate spi_flash objects representing the same device. BUG=chrome-os-partner:56151 Change-Id: Iba92e8bb8a6060cdd327b10f5f8ec23ac61101e7 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/17715 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com>
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@ -95,3 +95,9 @@ const struct region_device *boot_device_rw(void)
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return &spi_rw;
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return &spi_rw;
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}
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}
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const struct spi_flash *boot_device_spi_flash(void)
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{
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boot_device_rw_init();
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return car_get_var(sfg);
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}
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@ -88,4 +88,8 @@ int spi_flash_volatile_group_end(const struct spi_flash *flash);
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int chipset_volatile_group_begin(const struct spi_flash *flash);
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int chipset_volatile_group_begin(const struct spi_flash *flash);
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int chipset_volatile_group_end(const struct spi_flash *flash);
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int chipset_volatile_group_end(const struct spi_flash *flash);
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/* Return spi_flash object reference for the boot device. This is only valid
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* if CONFIG_BOOT_DEVICE_SPI_FLASH is enabled. */
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const struct spi_flash *boot_device_spi_flash(void);
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#endif /* _SPI_FLASH_H_ */
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#endif /* _SPI_FLASH_H_ */
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