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 <config.h>
  14 #include <init.h>
  15 #include <asm/global_data.h>
  16 #include <linux/sizes.h>
  17 #include <asm/io.h>
  18 #include <asm/gpio.h>
  19 #include <asm/arch/at91sam9_smc.h>
  20 #include <asm/arch/at91_common.h>
  21 #include <asm/arch/at91_rstc.h>
  22 #include <asm/arch/at91_matrix.h>
  23 #include <asm/arch/gpio.h>
  24 #include <asm/arch/clk.h>
  25 #if defined(CONFIG_RESET_PHY_R) && defined(CONFIG_MACB)
  26 #include <net.h>
  27 #endif
  28 #include <netdev.h>
  29 #include <asm/mach-types.h>
  30
  31 DECLARE_GLOBAL_DATA_PTR;
  32
  33 /*
  34  * Miscelaneous platform dependent initialisations
  35  */
  36
  37 #ifdef CONFIG_CMD_NAND
  38 static void pm9g45_nand_hw_init(void)
  39 {
  40         unsigned long csa;
  41         struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
  42         struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
  43
  44         /* Enable CS3 */
  45         csa = readl(&matrix->ccr[6]) | AT91_MATRIX_CSA_EBI_CS3A;
  46         writel(csa, &matrix->ccr[6]);
  47
  48         /* Configure SMC CS3 for NAND/SmartMedia */
  49         writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(0) |
  50                 AT91_SMC_SETUP_NRD(1) | AT91_SMC_SETUP_NCS_RD(0),
  51                 &smc->cs[3].setup);
  52
  53         writel(AT91_SMC_PULSE_NWE(4) | AT91_SMC_PULSE_NCS_WR(3) |
  54                 AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(2),
  55                 &smc->cs[3].pulse);
  56
  57         writel(AT91_SMC_CYCLE_NWE(7) | AT91_SMC_CYCLE_NRD(4),
  58                 &smc->cs[3].cycle);
  59
  60         writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
  61                 AT91_SMC_MODE_EXNW_DISABLE |
  62                 AT91_SMC_MODE_DBW_8 |
  63                 AT91_SMC_MODE_TDF_CYCLE(3),
  64                 &smc->cs[3].mode);
  65
  66         at91_periph_clk_enable(ATMEL_ID_PIOC);
  67
  68 #ifdef CFG_SYS_NAND_READY_PIN
  69         /* Configure RDY/BSY */
  70         gpio_request(CFG_SYS_NAND_READY_PIN, "NAND RDY/BSY");
  71         gpio_direction_input(CFG_SYS_NAND_READY_PIN);
  72 #endif
  73
  74         /* Enable NandFlash */
  75         gpio_request(CFG_SYS_NAND_ENABLE_PIN, "NAND enable");
  76         gpio_direction_output(CFG_SYS_NAND_ENABLE_PIN, 1);
  77 }
  78 #endif
  79
  80 #ifdef CONFIG_MACB
  81 static void pm9g45_macb_hw_init(void)
  82 {
  83         /*
  84          * PD2 enables the 50MHz oscillator for Ethernet PHY
  85          * 1 - enable
  86          * 0 - disable
  87          */
  88         at91_set_pio_output(AT91_PIO_PORTD, 2, 1);
  89         at91_set_pio_value(AT91_PIO_PORTD, 2, 1); /* 1- enable, 0 - disable */
  90
  91         at91_periph_clk_enable(ATMEL_ID_EMAC);
  92
  93         /*
  94          * Disable pull-up on:
  95          *      RXDV (PA15) => PHY normal mode (not Test mode)
  96          *      ERX0 (PA12) => PHY ADDR0
  97          *      ERX1 (PA13) => PHY ADDR1 => PHYADDR = 0x0
  98          *
  99          * PHY has internal pull-down
 100          */
 101         at91_set_pio_pullup(AT91_PIO_PORTA, 15, 0);
 102         at91_set_pio_pullup(AT91_PIO_PORTA, 12, 0);
 103         at91_set_pio_pullup(AT91_PIO_PORTA, 13, 0);
 104
 105         /* Re-enable pull-up */
 106         at91_set_pio_pullup(AT91_PIO_PORTA, 15, 1);
 107         at91_set_pio_pullup(AT91_PIO_PORTA, 12, 1);
 108         at91_set_pio_pullup(AT91_PIO_PORTA, 13, 1);
 109
 110         at91_macb_hw_init();
 111 }
 112 #endif
 113
 114 int board_early_init_f(void)
 115 {
 116         at91_periph_clk_enable(ATMEL_ID_PIOA);
 117         at91_periph_clk_enable(ATMEL_ID_PIOB);
 118         at91_periph_clk_enable(ATMEL_ID_PIOC);
 119         at91_periph_clk_enable(ATMEL_ID_PIODE);
 120
 121         at91_seriald_hw_init();
 122
 123         return 0;
 124 }
 125
 126 int board_init(void)
 127 {
 128         /* arch number of AT91SAM9M10G45EK-Board */
 129         gd->bd->bi_arch_number = MACH_TYPE_PM9G45;
 130         /* adress of boot parameters */
 131         gd->bd->bi_boot_params = CFG_SYS_SDRAM_BASE + 0x100;
 132
 133 #ifdef CONFIG_CMD_NAND
 134         pm9g45_nand_hw_init();
 135 #endif
 136
 137 #ifdef CONFIG_MACB
 138         pm9g45_macb_hw_init();
 139 #endif
 140         return 0;
 141 }
 142
 143 int dram_init(void)
 144 {
 145         /* dram_init must store complete ramsize in gd->ram_size */
 146         gd->ram_size = get_ram_size((void *)CFG_SYS_SDRAM_BASE,
 147                                     CFG_SYS_SDRAM_SIZE);
 148         return 0;
 149 }
 150
 151 int dram_init_banksize(void)
 152 {
 153         gd->bd->bi_dram[0].start = CFG_SYS_SDRAM_BASE;
 154         gd->bd->bi_dram[0].size = CFG_SYS_SDRAM_SIZE;
 155
 156         return 0;
 157 }
 158
 159 #ifdef CONFIG_RESET_PHY_R
 160 void reset_phy(void)
 161 {
 162 #ifdef CONFIG_MACB
 163         /*
 164          * Initialize ethernet HW addr prior to starting Linux,
 165          * needed for nfsroot
 166          */
 167         eth_init();
 168 #endif
 169 }
 170 #endif
 171
 172 int board_eth_init(struct bd_info *bis)
 173 {
 174         int rc = 0;
 175 #ifdef CONFIG_MACB
 176         rc = macb_eth_initialize(0, (void *)ATMEL_BASE_EMAC, 0x01);
 177 #endif
 178         return rc;
 179 }