mirror of
https://github.com/AsahiLinux/u-boot
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179 lines
4.9 KiB
C
179 lines
4.9 KiB
C
/*
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* (C) Copyright 2002
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* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
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* Marius Groeger <mgroeger@sysgo.de>
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*
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* Modified for CMC_PU2 (removed Smart Media support) by Gary Jennejohn
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* (2004) garyj@denx.de
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*
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* Modified for CMC_BASIC by Martin Krause (2005), TQ-Systems GmbH
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <asm/mach-types.h>
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#include <asm/arch/AT91RM9200.h>
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#include <at91rm9200_net.h>
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#include <dm9161.h>
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DECLARE_GLOBAL_DATA_PTR;
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/* ------------------------------------------------------------------------- */
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/*
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* Miscelaneous platform dependent initialisations
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*/
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#define CMC_HP_BASIC 1
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#define CMC_PU2 2
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#define CMC_BASIC 4
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int hw_detect (void);
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int board_init (void)
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{
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AT91PS_PIO piob = AT91C_BASE_PIOB;
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AT91PS_PIO pioc = AT91C_BASE_PIOC;
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/* Enable Ctrlc */
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console_init_f ();
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/* Correct IRDA resistor problem */
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/* Set PA23_TXD in Output */
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/* (AT91PS_PIO) AT91C_BASE_PIOA->PIO_OER = AT91C_PA23_TXD2; */
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/* memory and cpu-speed are setup before relocation */
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/* so we do _nothing_ here */
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/* PIOB and PIOC clock enabling */
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*AT91C_PMC_PCER = 1 << AT91C_ID_PIOB;
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*AT91C_PMC_PCER = 1 << AT91C_ID_PIOC;
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/*
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* configure PC0-PC3 as input without pull ups, so RS485 driver enable
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* (CMC-PU2) and digital outputs (CMC-BASIC) are deactivated.
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*/
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pioc->PIO_ODR = AT91C_PIO_PC0 | AT91C_PIO_PC1 |
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AT91C_PIO_PC2 | AT91C_PIO_PC3;
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pioc->PIO_PPUDR = AT91C_PIO_PC0 | AT91C_PIO_PC1 |
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AT91C_PIO_PC2 | AT91C_PIO_PC3;
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pioc->PIO_PER = AT91C_PIO_PC0 | AT91C_PIO_PC1 |
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AT91C_PIO_PC2 | AT91C_PIO_PC3;
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/*
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* On CMC-PU2 board configure PB3-PB6 to input without pull ups to
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* clear the duo LEDs (the external pull downs assure a proper
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* signal). On CMC-BASIC and CMC-HP-BASIC set PB3-PB6 to output and
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* drive it high, to configure current measurement on AINx.
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*/
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if (hw_detect() & CMC_PU2) {
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piob->PIO_ODR = AT91C_PIO_PB3 | AT91C_PIO_PB4 |
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AT91C_PIO_PB5 | AT91C_PIO_PB6;
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}
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else if ((hw_detect() & CMC_BASIC) || (hw_detect() & CMC_HP_BASIC)) {
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piob->PIO_SODR = AT91C_PIO_PB3 | AT91C_PIO_PB4 |
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AT91C_PIO_PB5 | AT91C_PIO_PB6;
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piob->PIO_OER = AT91C_PIO_PB3 | AT91C_PIO_PB4 |
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AT91C_PIO_PB5 | AT91C_PIO_PB6;
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}
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piob->PIO_PPUDR = AT91C_PIO_PB3 | AT91C_PIO_PB4 |
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AT91C_PIO_PB5 | AT91C_PIO_PB6;
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piob->PIO_PER = AT91C_PIO_PB3 | AT91C_PIO_PB4 |
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AT91C_PIO_PB5 | AT91C_PIO_PB6;
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/*
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* arch number of CMC_PU2-Board. MACH_TYPE_CMC_PU2 is not supported in
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* the linuxarm kernel, yet.
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*/
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/* gd->bd->bi_arch_number = MACH_TYPE_CMC_PU2; */
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gd->bd->bi_arch_number = 251;
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/* adress of boot parameters */
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gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
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return 0;
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}
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int dram_init (void)
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{
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gd->bd->bi_dram[0].start = PHYS_SDRAM;
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gd->bd->bi_dram[0].size = PHYS_SDRAM_SIZE;
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return 0;
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}
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int checkboard (void)
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{
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if (hw_detect() & CMC_PU2)
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puts ("Board: CMC-PU2 (Rittal GmbH)\n");
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else if (hw_detect() & CMC_BASIC)
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puts ("Board: CMC-BASIC (Rittal GmbH)\n");
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else if (hw_detect() & CMC_HP_BASIC)
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puts ("Board: CMC-HP-BASIC (Rittal GmbH)\n");
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else
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puts ("Board: unknown\n");
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return 0;
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}
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int hw_detect (void)
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{
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AT91PS_PIO pio = AT91C_BASE_PIOB;
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/* PIOB clock enabling */
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*AT91C_PMC_PCER = 1 << AT91C_ID_PIOB;
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/* configure PB12 as input without pull up */
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pio->PIO_ODR = AT91C_PIO_PB12;
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pio->PIO_PPUDR = AT91C_PIO_PB12;
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pio->PIO_PER = AT91C_PIO_PB12;
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/* configure PB13 as input without pull up */
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pio->PIO_ODR = AT91C_PIO_PB13;
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pio->PIO_PPUDR = AT91C_PIO_PB13;
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pio->PIO_PER = AT91C_PIO_PB13;
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/* read board identification pin */
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if (pio->PIO_PDSR & AT91C_PIO_PB12)
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return ((pio->PIO_PDSR & AT91C_PIO_PB13)
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? CMC_PU2 : 0);
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else
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return ((pio->PIO_PDSR & AT91C_PIO_PB13)
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? CMC_HP_BASIC : CMC_BASIC);
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}
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#ifdef CONFIG_DRIVER_ETHER
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#if defined(CONFIG_CMD_NET)
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/*
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* Name:
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* at91rm9200_GetPhyInterface
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* Description:
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* Initialise the interface functions to the PHY
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* Arguments:
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* None
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* Return value:
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* None
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*/
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void at91rm9200_GetPhyInterface(AT91PS_PhyOps p_phyops)
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{
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p_phyops->Init = dm9161_InitPhy;
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p_phyops->IsPhyConnected = dm9161_IsPhyConnected;
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p_phyops->GetLinkSpeed = dm9161_GetLinkSpeed;
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p_phyops->AutoNegotiate = dm9161_AutoNegotiate;
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}
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#endif
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#endif /* CONFIG_DRIVER_ETHER */
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