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5 commits

Author SHA1 Message Date
Nikita Kiryanov
43e568c4ae arm: am437x: cm-t43: set MPU and CORE voltages on boot
During boot, U-Boot raises the CPU frequency but the CORE and MPU regulators
are not updated. This is not a problem in cold boot since the default values
that the pmic outputs are correct, but if Linux were to switch the module to a
low power OPP, the new voltage values will be retained after a reboot and the
module will likely hang once U-Boot raises the CPU frequency back up.

Set both CORE and MPU regulators to to 1.1V on boot.

Cc: Tom Rini <trini@konsulko.com>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
Reviewed-by: Tom Rini <trini@konsulko.com>
2016-02-24 18:44:09 -05:00
Nikita Kiryanov
e038e2a89b arm: am437x: cm-t43: get rid of enable_vtt_regulator()
CM-T43 does not have a vtt regulator. Remove the function that's supposed
to enable it.

Cc: Tom Rini <trini@konsulko.com>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
Reviewed-by: Tom Rini <trini@konsulko.com>
2016-02-24 18:44:08 -05:00
Nikita Kiryanov
dccaaaeb99 arm: am437x: cm-t43: set tps fseal bit
Set TPS65218 FSEAL bit to 1 so that RTC could be powered using on-board
3V battery. This is necessary so that time and date will survive reboots and
power offs.

Cc: Tom Rini <trini@konsulko.com>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
Reviewed-by: Tom Rini <trini@konsulko.com>
2016-02-24 18:44:08 -05:00
Nikita Kiryanov
5dc5a8cac7 arm: am437x: cm-t43: split board file
Simplify the board file by splitting it to spl portion and u-boot portion.
Some unnecessary includes were identified and removed. No functional changes.

Cc: Tom Rini <trini@konsulko.com>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
Reviewed-by: Tom Rini <trini@konsulko.com>
2016-02-24 18:44:06 -05:00
Nikita Kiryanov
8883ddafde arm: am437x: Introduce new board cm-t43
Add initial support for CM-T43, an AM437x based SoM.
This support includes: serial, MMC/eMMC, NAND, USB, ETH, I2C, GPIO, DRAM
detection.

Cc: Tom Rini <trini@konsulko.com>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
2015-08-12 20:48:05 -04:00