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 <init.h>
  12 #include <asm/arch/at91sam9_smc.h>
  13 #include <asm/arch/at91_common.h>
  14 #include <asm/arch/at91_matrix.h>
  15 #include <asm/arch/clk.h>
  16 #include <asm/arch/gpio.h>
  17 #include <asm-generic/gpio.h>
  18 #include <asm/global_data.h>
  19 #include <asm/io.h>
  20 #include <net.h>
  21 #include <netdev.h>
  22
  23 DECLARE_GLOBAL_DATA_PTR;
  24
  25 #ifdef CONFIG_CMD_NAND
  26 static void usb_a9263_nand_hw_init(void)
  27 {
  28         unsigned long csa;
  29         at91_smc_t *smc = (at91_smc_t *)ATMEL_BASE_SMC0;
  30         at91_matrix_t *matrix = (at91_matrix_t *)ATMEL_BASE_MATRIX;
  31
  32         /* Enable CS3 */
  33         csa = readl(&matrix->csa[0]) | AT91_MATRIX_CSA_EBI_CS3A;
  34         writel(csa, &matrix->csa[0]);
  35
  36         /* Configure SMC CS3 for NAND/SmartMedia */
  37         writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(0) |
  38                AT91_SMC_SETUP_NRD(1) | AT91_SMC_SETUP_NCS_RD(0),
  39                &smc->cs[3].setup);
  40
  41         writel(AT91_SMC_PULSE_NWE(3) | AT91_SMC_PULSE_NCS_WR(3) |
  42                AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(3),
  43                &smc->cs[3].pulse);
  44
  45         writel(AT91_SMC_CYCLE_NWE(5) | AT91_SMC_CYCLE_NRD(5),
  46                &smc->cs[3].cycle);
  47
  48         writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
  49                AT91_SMC_MODE_EXNW_DISABLE |
  50                AT91_SMC_MODE_DBW_8 |
  51                AT91_SMC_MODE_TDF_CYCLE(2), &smc->cs[3].mode);
  52
  53         at91_periph_clk_enable(ATMEL_ID_PIOA);
  54         at91_periph_clk_enable(ATMEL_ID_PIOCDE);
  55
  56         /* Configure RDY/BSY */
  57         gpio_request(CFG_SYS_NAND_READY_PIN, "NAND ready/busy");
  58         gpio_direction_input(CFG_SYS_NAND_READY_PIN);
  59
  60         /* Enable NandFlash */
  61         gpio_request(CFG_SYS_NAND_ENABLE_PIN, "NAND enable");
  62         gpio_direction_output(CFG_SYS_NAND_ENABLE_PIN, 1);
  63 }
  64 #endif
  65
  66 #ifdef CONFIG_MACB
  67 static void usb_a9263_macb_hw_init(void)
  68 {
  69         at91_periph_clk_enable(ATMEL_ID_EMAC);
  70
  71         /*
  72          * Disable pull-up on:
  73          *  RXDV (PC25) => PHY normal mode (not Test mode)
  74          *  ERX0 (PE25) => PHY ADDR0
  75          *  ERX1 (PE26) => PHY ADDR1 => PHYADDR = 0x0
  76          *
  77          * PHY has internal weak pull-up/pull-down
  78          */
  79         gpio_request(GPIO_PIN_PC(25), "PHY mode");
  80         gpio_direction_input(GPIO_PIN_PC(25));
  81
  82         gpio_request(GPIO_PIN_PE(25), "PHY ADDR0");
  83         gpio_direction_input(GPIO_PIN_PE(25));
  84
  85         gpio_request(GPIO_PIN_PE(26), "PHY ADDR1");
  86         gpio_direction_input(GPIO_PIN_PE(26));
  87
  88         at91_phy_reset();
  89
  90         /* It will set proper pinmux for ports PC25, PE25-26 */
  91         at91_macb_hw_init();
  92 }
  93 #endif
  94
  95 int board_init(void)
  96 {
  97         /* adress of boot parameters */
  98         gd->bd->bi_boot_params = CFG_SYS_SDRAM_BASE + 0x100;
  99
 100 #ifdef CONFIG_CMD_NAND
 101         usb_a9263_nand_hw_init();
 102 #endif
 103 #ifdef CONFIG_MACB
 104         usb_a9263_macb_hw_init();
 105 #endif
 106 #ifdef CONFIG_USB_OHCI_NEW
 107         at91_uhp_hw_init();
 108 #endif
 109         return 0;
 110 }
 111
 112 int dram_init(void)
 113 {
 114         gd->ram_size = get_ram_size((void *)CFG_SYS_SDRAM_BASE,
 115                                     CFG_SYS_SDRAM_SIZE);
 116         return 0;
 117 }
 118
 119 int board_eth_init(struct bd_info *bis)
 120 {
 121         int rc = 0;
 122
 123 #ifdef CONFIG_MACB
 124         rc = macb_eth_initialize(0, (void *)ATMEL_BASE_EMAC, 0x0001);
 125 #endif
 126         return rc;
 127 }