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| author | Caleb Robey <c-robey@ti.com> | 2020-01-02 08:17:25 -0600 |
|---|---|---|
| committer | Lokesh Vutla <lokeshvutla@ti.com> | 2020-01-20 10:10:28 +0530 |
| commit | d6eaaae3d3066efadab3899e3f66ee8db85368b2 (patch) | |
| tree | 9bf6cf93ad7129c5a18d778659771171dd2c2202 /board/ti/common/board_detect.h | |
| parent | 4250bf8ed96b50cf78d04fb2564fed351f7daeb2 (diff) | |
| download | u-boot-d6eaaae3d3066efadab3899e3f66ee8db85368b2.zip u-boot-d6eaaae3d3066efadab3899e3f66ee8db85368b2.tar.gz u-boot-d6eaaae3d3066efadab3899e3f66ee8db85368b2.tar.bz2 | |
board: ti: beagleboneai: emmc read changes
BeagleBoard.org BeagleBone AI rev A1 does not include a board
identifier I2C EEPROM due to a design oversight. These boards have
been put into production and are generally available now.
The board identifier information, however, has been included in the
second eMMC linear boot partition (/dev/mmcblk1boot1).
This patch works by:
* First, looking for a board identifier I2C EEPROM and if not found,
* Then seeing if the boot mode matches BeagleBone AI with eMMC in the
boot chain to make sure we don't enable eMMC pinmuxes on boards
that don't support it, and
* Finally, initializes the eMMC pins and reading the header.
Signed-off-by: Jason Kridner <jdk@ti.com>
Signed-off-by: Caleb Robey <c-robey@ti.com>
Cc: Robert Nelson <robertcnelson@gmail.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Diffstat (limited to 'board/ti/common/board_detect.h')
| -rw-r--r-- | board/ti/common/board_detect.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/board/ti/common/board_detect.h b/board/ti/common/board_detect.h index a45d896..1a85b7f 100644 --- a/board/ti/common/board_detect.h +++ b/board/ti/common/board_detect.h @@ -268,6 +268,15 @@ struct ti_am6_eeprom { int ti_i2c_eeprom_am_get(int bus_addr, int dev_addr); /** + * ti_emmc_boardid_get() - Fetch board ID information from eMMC + * + * ep in SRAM is populated by the this function that is currently + * based on BeagleBone AI, but could be made more general across AM* + * platforms. + */ +int __maybe_unused ti_emmc_boardid_get(void); + +/** * ti_i2c_eeprom_dra7_get() - Consolidated eeprom data for DRA7 TI EVMs * @bus_addr: I2C bus address * @dev_addr: I2C slave address |