LXR uboot/board/ronetix/pm9g45/pm9g45.c

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * (C) Copyright 2010
   4 * Ilko Iliev <iliev@ronetix.at>
   5 * Asen Dimov <dimov@ronetix.at>
   6 * Ronetix GmbH <www.ronetix.at>
   7 *
   8 * (C) Copyright 2007-2008
   9 * Stelian Pop <stelian@popies.net>
  10 * Lead Tech Design <www.leadtechdesign.com>
  11 */
  12
  13#include <common.h>
  14#include <linux/sizes.h>
  15#include <asm/io.h>
  16#include <asm/gpio.h>
  17#include <asm/arch/at91sam9_smc.h>
  18#include <asm/arch/at91_common.h>
  19#include <asm/arch/at91_rstc.h>
  20#include <asm/arch/at91_matrix.h>
  21#include <asm/arch/gpio.h>
  22#include <asm/arch/clk.h>
  23#if defined(CONFIG_RESET_PHY_R) && defined(CONFIG_MACB)
  24#include <net.h>
  25#endif
  26#include <netdev.h>
  27#include <asm/mach-types.h>
  28
  29DECLARE_GLOBAL_DATA_PTR;
  30
  31/*
  32 * Miscelaneous platform dependent initialisations
  33 */
  34
  35#ifdef CONFIG_CMD_NAND
  36static void pm9g45_nand_hw_init(void)
  37{
  38        unsigned long csa;
  39        struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
  40        struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
  41
  42        /* Enable CS3 */
  43        csa = readl(&matrix->ccr[6]) | AT91_MATRIX_CSA_EBI_CS3A;
  44        writel(csa, &matrix->ccr[6]);
  45
  46        /* Configure SMC CS3 for NAND/SmartMedia */
  47        writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(0) |
  48                AT91_SMC_SETUP_NRD(1) | AT91_SMC_SETUP_NCS_RD(0),
  49                &smc->cs[3].setup);
  50
  51        writel(AT91_SMC_PULSE_NWE(4) | AT91_SMC_PULSE_NCS_WR(3) |
  52                AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(2),
  53                &smc->cs[3].pulse);
  54
  55        writel(AT91_SMC_CYCLE_NWE(7) | AT91_SMC_CYCLE_NRD(4),
  56                &smc->cs[3].cycle);
  57
  58        writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
  59                AT91_SMC_MODE_EXNW_DISABLE |
  60                AT91_SMC_MODE_DBW_8 |
  61                AT91_SMC_MODE_TDF_CYCLE(3),
  62                &smc->cs[3].mode);
  63
  64        at91_periph_clk_enable(ATMEL_ID_PIOC);
  65
  66#ifdef CONFIG_SYS_NAND_READY_PIN
  67        /* Configure RDY/BSY */
  68        gpio_direction_input(CONFIG_SYS_NAND_READY_PIN);
  69#endif
  70
  71        /* Enable NandFlash */
  72        gpio_direction_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
  73}
  74#endif
  75
  76#ifdef CONFIG_MACB
  77static void pm9g45_macb_hw_init(void)
  78{
  79        /*
  80         * PD2 enables the 50MHz oscillator for Ethernet PHY
  81         * 1 - enable
  82         * 0 - disable
  83         */
  84        at91_set_pio_output(AT91_PIO_PORTD, 2, 1);
  85        at91_set_pio_value(AT91_PIO_PORTD, 2, 1); /* 1- enable, 0 - disable */
  86
  87        at91_periph_clk_enable(ATMEL_ID_EMAC);
  88
  89        /*
  90         * Disable pull-up on:
  91         *      RXDV (PA15) => PHY normal mode (not Test mode)
  92         *      ERX0 (PA12) => PHY ADDR0
  93         *      ERX1 (PA13) => PHY ADDR1 => PHYADDR = 0x0
  94         *
  95         * PHY has internal pull-down
  96         */
  97        at91_set_pio_pullup(AT91_PIO_PORTA, 15, 0);
  98        at91_set_pio_pullup(AT91_PIO_PORTA, 12, 0);
  99        at91_set_pio_pullup(AT91_PIO_PORTA, 13, 0);
 100
 101        /* Re-enable pull-up */
 102        at91_set_pio_pullup(AT91_PIO_PORTA, 15, 1);
 103        at91_set_pio_pullup(AT91_PIO_PORTA, 12, 1);
 104        at91_set_pio_pullup(AT91_PIO_PORTA, 13, 1);
 105
 106        at91_macb_hw_init();
 107}
 108#endif
 109
 110int board_early_init_f(void)
 111{
 112        at91_periph_clk_enable(ATMEL_ID_PIOA);
 113        at91_periph_clk_enable(ATMEL_ID_PIOB);
 114        at91_periph_clk_enable(ATMEL_ID_PIOC);
 115        at91_periph_clk_enable(ATMEL_ID_PIODE);
 116
 117        at91_seriald_hw_init();
 118
 119        return 0;
 120}
 121
 122int board_init(void)
 123{
 124        /* arch number of AT91SAM9M10G45EK-Board */
 125        gd->bd->bi_arch_number = MACH_TYPE_PM9G45;
 126        /* adress of boot parameters */
 127        gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
 128
 129#ifdef CONFIG_CMD_NAND
 130        pm9g45_nand_hw_init();
 131#endif
 132
 133#ifdef CONFIG_MACB
 134        pm9g45_macb_hw_init();
 135#endif
 136        return 0;
 137}
 138
 139int dram_init(void)
 140{
 141        /* dram_init must store complete ramsize in gd->ram_size */
 142        gd->ram_size = get_ram_size((void *)PHYS_SDRAM,
 143                                PHYS_SDRAM_SIZE);
 144        return 0;
 145}
 146
 147int dram_init_banksize(void)
 148{
 149        gd->bd->bi_dram[0].start = PHYS_SDRAM;
 150        gd->bd->bi_dram[0].size = PHYS_SDRAM_SIZE;
 151
 152        return 0;
 153}
 154
 155#ifdef CONFIG_RESET_PHY_R
 156void reset_phy(void)
 157{
 158#ifdef CONFIG_MACB
 159        /*
 160         * Initialize ethernet HW addr prior to starting Linux,
 161         * needed for nfsroot
 162         */
 163        eth_init();
 164#endif
 165}
 166#endif
 167
 168int board_eth_init(bd_t *bis)
 169{
 170        int rc = 0;
 171#ifdef CONFIG_MACB
 172        rc = macb_eth_initialize(0, (void *)ATMEL_BASE_EMAC, 0x01);
 173#endif
 174        return rc;
 175}
 176