board/ronetix/pm9g45/pm9g45.c

   1 /*
   2  * (C) Copyright 2010
   3  * Ilko Iliev <iliev@ronetix.at>
   4  * Asen Dimov <dimov@ronetix.at>
   5  * Ronetix GmbH <www.ronetix.at>
   6  *
   7  * (C) Copyright 2007-2008
   8  * Stelian Pop <stelian.pop@leadtechdesign.com>
   9  * Lead Tech Design <www.leadtechdesign.com>
  10  *
  11  * See file CREDITS for list of people who contributed to this
  12  * project.
  13  *
  14  * This program is free software; you can redistribute it and/or
  15  * modify it under the terms of the GNU General Public License as
  16  * published by the Free Software Foundation; either version 2 of
  17  * the License, or (at your option) any later version.
  18  *
  19  * This program is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  22  * GNU General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU General Public License
  25  * along with this program; if not, write to the Free Software
  26  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  27  * MA 02111-1307 USA
  28  */
  29
  30 #include <common.h>
  31 #include <asm/sizes.h>
  32 #include <asm/arch/at91sam9g45.h>
  33 #include <asm/arch/at91sam9_smc.h>
  34 #include <asm/arch/at91_common.h>
  35 #include <asm/arch/at91_pmc.h>
  36 #include <asm/arch/at91_rstc.h>
  37 #include <asm/arch/at91_matrix.h>
  38 #include <asm/arch/at91_pio.h>
  39 #include <asm/arch/clk.h>
  40 #include <asm/arch/io.h>
  41 #include <asm/arch/hardware.h>
  42 #if defined(CONFIG_RESET_PHY_R) && defined(CONFIG_MACB)
  43 #include <net.h>
  44 #endif
  45 #include <netdev.h>
  46
  47 DECLARE_GLOBAL_DATA_PTR;
  48
  49 /*
  50  * Miscelaneous platform dependent initialisations
  51  */
  52
  53 #ifdef CONFIG_CMD_NAND
  54 static void pm9g45_nand_hw_init(void)
  55 {
  56         unsigned long csa;
  57         at91_smc_t      *smc    = (at91_smc_t *) AT91_SMC_BASE;
  58         at91_matrix_t   *matrix = (at91_matrix_t *) AT91_MATRIX_BASE;
  59         at91_pmc_t      *pmc    = (at91_pmc_t *) AT91_PMC_BASE;
  60
  61         /* Enable CS3 */
  62         csa = readl(&matrix->ccr[6]) | AT91_MATRIX_CSA_EBI_CS3A;
  63         writel(csa, &matrix->ccr[6]);
  64
  65         /* Configure SMC CS3 for NAND/SmartMedia */
  66         writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(0) |
  67                 AT91_SMC_SETUP_NRD(1) | AT91_SMC_SETUP_NCS_RD(0),
  68                 &smc->cs[3].setup);
  69
  70         writel(AT91_SMC_PULSE_NWE(4) | AT91_SMC_PULSE_NCS_WR(3) |
  71                 AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(2),
  72                 &smc->cs[3].pulse);
  73
  74         writel(AT91_SMC_CYCLE_NWE(7) | AT91_SMC_CYCLE_NRD(4),
  75                 &smc->cs[3].cycle);
  76
  77         writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
  78                 AT91_SMC_MODE_EXNW_DISABLE |
  79                 AT91_SMC_MODE_DBW_8 |
  80                 AT91_SMC_MODE_TDF_CYCLE(3),
  81                 &smc->cs[3].mode);
  82
  83         writel(1 << AT91SAM9G45_ID_PIOC, &pmc->pcer);
  84
  85 #ifdef CONFIG_SYS_NAND_READY_PIN
  86         /* Configure RDY/BSY */
  87         at91_set_pio_input(CONFIG_SYS_NAND_READY_PIN, 1);
  88 #endif
  89
  90         /* Enable NandFlash */
  91         at91_set_pio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
  92 }
  93 #endif
  94
  95 #ifdef CONFIG_MACB
  96 static void pm9g45_macb_hw_init(void)
  97 {
  98         at91_pmc_t      *pmc    = (at91_pmc_t *) AT91_PMC_BASE;
  99
 100         /*
 101          * PD2 enables the 50MHz oscillator for Ethernet PHY
 102          * 1 - enable
 103          * 0 - disable
 104          */
 105         at91_set_pio_output(AT91_PIO_PORTD, 2, 1);
 106         at91_set_pio_value(AT91_PIO_PORTD, 2, 1); /* 1- enable, 0 - disable */
 107
 108         /* Enable clock */
 109         writel(1 << AT91SAM9G45_ID_EMAC, &pmc->pcer);
 110
 111         /*
 112          * Disable pull-up on:
 113          *      RXDV (PA15) => PHY normal mode (not Test mode)
 114          *      ERX0 (PA12) => PHY ADDR0
 115          *      ERX1 (PA13) => PHY ADDR1 => PHYADDR = 0x0
 116          *
 117          * PHY has internal pull-down
 118          */
 119         at91_set_pio_pullup(AT91_PIO_PORTA, 15, 0);
 120         at91_set_pio_pullup(AT91_PIO_PORTA, 12, 0);
 121         at91_set_pio_pullup(AT91_PIO_PORTA, 13, 0);
 122
 123         /* Re-enable pull-up */
 124         at91_set_pio_pullup(AT91_PIO_PORTA, 15, 1);
 125         at91_set_pio_pullup(AT91_PIO_PORTA, 12, 1);
 126         at91_set_pio_pullup(AT91_PIO_PORTA, 13, 1);
 127
 128         at91_macb_hw_init();
 129 }
 130 #endif
 131
 132 int board_init(void)
 133 {
 134         at91_pmc_t      *pmc    = (at91_pmc_t *) AT91_PMC_BASE;
 135
 136         /* Enable Ctrlc */
 137         console_init_f();
 138
 139         writel((1 << AT91SAM9G45_ID_PIOA) |
 140                 (1 << AT91SAM9G45_ID_PIOB) |
 141                 (1 << AT91SAM9G45_ID_PIOC) |
 142                 (1 << AT91SAM9G45_ID_PIODE), &pmc->pcer);
 143
 144         /* arch number of AT91SAM9M10G45EK-Board */
 145         gd->bd->bi_arch_number = MACH_TYPE_PM9G45;
 146         /* adress of boot parameters */
 147         gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
 148
 149         at91_serial_hw_init();
 150 #ifdef CONFIG_CMD_NAND
 151         pm9g45_nand_hw_init();
 152 #endif
 153
 154 #ifdef CONFIG_MACB
 155         pm9g45_macb_hw_init();
 156 #endif
 157         return 0;
 158 }
 159
 160 int dram_init(void)
 161 {
 162         gd->bd->bi_dram[0].start = PHYS_SDRAM;
 163         gd->bd->bi_dram[0].size = PHYS_SDRAM_SIZE;
 164         return 0;
 165 }
 166
 167 #ifdef CONFIG_RESET_PHY_R
 168 void reset_phy(void)
 169 {
 170 #ifdef CONFIG_MACB
 171         /*
 172          * Initialize ethernet HW addr prior to starting Linux,
 173          * needed for nfsroot
 174          */
 175         eth_init(gd->bd);
 176 #endif
 177 }
 178 #endif
 179
 180 int board_eth_init(bd_t *bis)
 181 {
 182         int rc = 0;
 183 #ifdef CONFIG_MACB
 184         rc = macb_eth_initialize(0, (void *)AT91_EMAC_BASE, 0x01);
 185 #endif
 186         return rc;
 187 }