Merge branch 'master' of git://git.denx.de/u-boot-mpc83xx

* 'master' of git://git.denx.de/u-boot-mpc83xx:
  mpc8313erdb: fix mtdparts address
  powerpc/83xx/km: add support for 8321 based tuge1 board
  powerpc/83xx/km: merge tuxa and tuda1 boards to tuxx1
  powerpc/83xx/km: remove obsolete defines for tuda1
  powerpc/83xx/km: update SDRAM parameters for km8321 boards
  mpc8313erdb: Enable GPIO support on the MPC8313E RDB
  mpc83xx: Add a GPIO driver for the MPC83XX family
  gpio: Replace ARM gpio.h with the common API in include/asm-generic
  gpio: Modify common gpio.h to more closely match Linux