board/eukrea/cpuat91/cpuat91.c

   1 /*
   2  * (C) Copyright 2006-2010 Eukrea Electromatique <www.eukrea.com>
   3  * Eric Benard <eric@eukrea.com>
   4  * based on at91rm9200dk.c which is :
   5  * (C) Copyright 2002
   6  * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
   7  * Marius Groeger <mgroeger@sysgo.de>
   8  *
   9  * SPDX-License-Identifier:     GPL-2.0+
  10  */
  11
  12 #include <common.h>
  13 #include <netdev.h>
  14
  15 #include <asm/io.h>
  16 #include <asm/arch/hardware.h>
  17 #include <asm/arch/at91_pio.h>
  18 #include <asm/arch/at91_pmc.h>
  19 #include <asm/arch/at91_common.h>
  20
  21 DECLARE_GLOBAL_DATA_PTR;
  22
  23 /* ------------------------------------------------------------------------- */
  24 /*
  25  * Miscelaneous platform dependent initialisations
  26  */
  27
  28 int board_init(void)
  29 {
  30         /* arch number of CPUAT91-Board */
  31         gd->bd->bi_arch_number = MACH_TYPE_CPUAT91;
  32         /* adress of boot parameters */
  33         gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
  34
  35         return 0;
  36 }
  37
  38 int board_early_init_f(void)
  39 {
  40         at91_seriald_hw_init();
  41         return 0;
  42 }
  43
  44
  45 int dram_init(void)
  46 {
  47         /* dram_init must store complete ramsize in gd->ram_size */
  48         gd->ram_size = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE,
  49                         CONFIG_SYS_SDRAM_SIZE);
  50         return 0;
  51 }
  52
  53 #ifdef CONFIG_DRIVER_AT91EMAC
  54 int board_eth_init(bd_t *bis)
  55 {
  56         return at91emac_register(bis, (u32) ATMEL_BASE_EMAC);
  57 }
  58 #endif
  59
  60 #ifdef CONFIG_SYS_I2C_SOFT
  61 void i2c_init_board(void)
  62 {
  63         u32 pin;
  64         at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
  65         at91_pio_t *pio = (at91_pio_t *) ATMEL_BASE_PIO;
  66
  67         writel(1 << AT91_ID_PIOA, &pmc->pcer);
  68         pin = AT91_PMX_AA_TWD | AT91_PMX_AA_TWCK;
  69         writel(pin, &pio->pioa.idr);
  70         writel(pin, &pio->pioa.pudr);
  71         writel(pin, &pio->pioa.per);
  72         writel(pin, &pio->pioa.oer);
  73         writel(pin, &pio->pioa.sodr);
  74 }
  75 #endif