board/calao/usb_a9263/usb_a9263.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * (C) Copyright 2007-2013
   4  * Stelian Pop <stelian.pop@leadtechdesign.com>
   5  * Lead Tech Design <www.leadtechdesign.com>
   6  * Thomas Petazzoni, Free Electrons, <thomas.petazzoni@free-electrons.com>
   7  * Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
   8  */
   9
  10 #include <common.h>
  11 #include <asm/arch/at91sam9_smc.h>
  12 #include <asm/arch/at91_common.h>
  13 #include <asm/arch/at91_matrix.h>
  14 #include <asm/arch/clk.h>
  15 #include <asm/arch/gpio.h>
  16 #include <asm-generic/gpio.h>
  17 #include <asm/io.h>
  18 #include <net.h>
  19 #include <netdev.h>
  20
  21 DECLARE_GLOBAL_DATA_PTR;
  22
  23 #ifdef CONFIG_CMD_NAND
  24 static void usb_a9263_nand_hw_init(void)
  25 {
  26         unsigned long csa;
  27         at91_smc_t *smc = (at91_smc_t *)ATMEL_BASE_SMC0;
  28         at91_matrix_t *matrix = (at91_matrix_t *)ATMEL_BASE_MATRIX;
  29
  30         /* Enable CS3 */
  31         csa = readl(&matrix->csa[0]) | AT91_MATRIX_CSA_EBI_CS3A;
  32         writel(csa, &matrix->csa[0]);
  33
  34         /* Configure SMC CS3 for NAND/SmartMedia */
  35         writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(0) |
  36                AT91_SMC_SETUP_NRD(1) | AT91_SMC_SETUP_NCS_RD(0),
  37                &smc->cs[3].setup);
  38
  39         writel(AT91_SMC_PULSE_NWE(3) | AT91_SMC_PULSE_NCS_WR(3) |
  40                AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(3),
  41                &smc->cs[3].pulse);
  42
  43         writel(AT91_SMC_CYCLE_NWE(5) | AT91_SMC_CYCLE_NRD(5),
  44                &smc->cs[3].cycle);
  45
  46         writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
  47                AT91_SMC_MODE_EXNW_DISABLE |
  48                AT91_SMC_MODE_DBW_8 |
  49                AT91_SMC_MODE_TDF_CYCLE(2), &smc->cs[3].mode);
  50
  51         at91_periph_clk_enable(ATMEL_ID_PIOA);
  52         at91_periph_clk_enable(ATMEL_ID_PIOCDE);
  53
  54         /* Configure RDY/BSY */
  55         gpio_request(CONFIG_SYS_NAND_READY_PIN, "NAND ready/busy");
  56         gpio_direction_input(CONFIG_SYS_NAND_READY_PIN);
  57
  58         /* Enable NandFlash */
  59         gpio_request(CONFIG_SYS_NAND_ENABLE_PIN, "NAND enable");
  60         gpio_direction_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
  61 }
  62 #endif
  63
  64 #ifdef CONFIG_MACB
  65 static void usb_a9263_macb_hw_init(void)
  66 {
  67         at91_periph_clk_enable(ATMEL_ID_EMAC);
  68
  69         /*
  70          * Disable pull-up on:
  71          *  RXDV (PC25) => PHY normal mode (not Test mode)
  72          *  ERX0 (PE25) => PHY ADDR0
  73          *  ERX1 (PE26) => PHY ADDR1 => PHYADDR = 0x0
  74          *
  75          * PHY has internal weak pull-up/pull-down
  76          */
  77         gpio_request(GPIO_PIN_PC(25), "PHY mode");
  78         gpio_direction_input(GPIO_PIN_PC(25));
  79
  80         gpio_request(GPIO_PIN_PE(25), "PHY ADDR0");
  81         gpio_direction_input(GPIO_PIN_PE(25));
  82
  83         gpio_request(GPIO_PIN_PE(26), "PHY ADDR1");
  84         gpio_direction_input(GPIO_PIN_PE(26));
  85
  86         at91_phy_reset();
  87
  88         /* It will set proper pinmux for ports PC25, PE25-26 */
  89         at91_macb_hw_init();
  90 }
  91 #endif
  92
  93 int board_init(void)
  94 {
  95         /* adress of boot parameters */
  96         gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
  97
  98 #ifdef CONFIG_CMD_NAND
  99         usb_a9263_nand_hw_init();
 100 #endif
 101 #ifdef CONFIG_MACB
 102         usb_a9263_macb_hw_init();
 103 #endif
 104 #ifdef CONFIG_USB_OHCI_NEW
 105         at91_uhp_hw_init();
 106 #endif
 107         return 0;
 108 }
 109
 110 int dram_init(void)
 111 {
 112         gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
 113                                     CONFIG_SYS_SDRAM_SIZE);
 114         return 0;
 115 }
 116
 117 int board_eth_init(bd_t *bis)
 118 {
 119         int rc = 0;
 120
 121 #ifdef CONFIG_MACB
 122         rc = macb_eth_initialize(0, (void *)ATMEL_BASE_EMAC, 0x0001);
 123 #endif
 124         return rc;
 125 }