arch/ppc/platforms/pq2ads.c

   1 /*
   2  * PQ2ADS platform support
   3  *
   4  * Author: Kumar Gala <galak@kernel.crashing.org>
   5  * Derived from: est8260_setup.c by Allen Curtis
   6  *
   7  * Copyright 2004 Freescale Semiconductor, Inc.
   8  *
   9  * This program is free software; you can redistribute  it and/or modify it
  10  * under  the terms of  the GNU General  Public License as published by the
  11  * Free Software Foundation;  either version 2 of the  License, or (at your
  12  * option) any later version.
  13  */
  14
  15 #include <linux/init.h>
  16
  17 #include <asm/io.h>
  18 #include <asm/mpc8260.h>
  19 #include <asm/cpm2.h>
  20 #include <asm/immap_cpm2.h>
  21
  22 void __init
  23 m82xx_board_setup(void)
  24 {
  25         cpm2_map_t* immap = ioremap(CPM_MAP_ADDR, sizeof(cpm2_map_t));
  26         u32 *bcsr = ioremap(BCSR_ADDR+4, sizeof(u32));
  27
  28         /* Enable the 2nd UART port */
  29         clrbits32(bcsr, BCSR1_RS232_EN2);
  30
  31 #ifdef CONFIG_SERIAL_CPM_SCC1
  32         clrbits32((u32*)&immap->im_scc[0].scc_sccm, UART_SCCM_TX | UART_SCCM_RX);
  33         clrbits32((u32*)&immap->im_scc[0].scc_gsmrl, SCC_GSMRL_ENR | SCC_GSMRL_ENT);
  34 #endif
  35
  36 #ifdef CONFIG_SERIAL_CPM_SCC2
  37         clrbits32((u32*)&immap->im_scc[1].scc_sccm, UART_SCCM_TX | UART_SCCM_RX);
  38         clrbits32((u32*)&immap->im_scc[1].scc_gsmrl, SCC_GSMRL_ENR | SCC_GSMRL_ENT);
  39 #endif
  40
  41 #ifdef CONFIG_SERIAL_CPM_SCC3
  42         clrbits32((u32*)&immap->im_scc[2].scc_sccm, UART_SCCM_TX | UART_SCCM_RX);
  43         clrbits32((u32*)&immap->im_scc[2].scc_gsmrl, SCC_GSMRL_ENR | SCC_GSMRL_ENT);
  44 #endif
  45
  46 #ifdef CONFIG_SERIAL_CPM_SCC4
  47         clrbits32((u32*)&immap->im_scc[3].scc_sccm, UART_SCCM_TX | UART_SCCM_RX);
  48         clrbits32((u32*)&immap->im_scc[3].scc_gsmrl, SCC_GSMRL_ENR | SCC_GSMRL_ENT);
  49 #endif
  50
  51         iounmap(bcsr);
  52         iounmap(immap);
  53 }