The Gateworks Ventana EEPROM contains a set of configuration bits that
affect the removal of device-tree nodes that support peripherals that do not
exist on sub-loaded boards. This patch adds:
- a structure to define a config bit name, dt node alias, bit position
- an array of supported configuration items
- an econfig command to get/set/list configuration bits
- use of the array when adjusting the FDT prior to boot
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Split the read_eeprom function out so that it can be shared (ie with SPL)
Cc: Stefan Roese <sr@denx.de>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Cc: Andy Ng <andreas2025@gmail.com>
Cc: Eric Nelson <eric.nelson@boundarydevices.com>
Cc: Tapani Utriainen <tapani@technexion.com>
Cc: Tom Rini <trini@ti.com>
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
