board/calao/usb_a9263/usb_a9263.c

   1 /*
   2  * (C) Copyright 2007-2013
   3  * Stelian Pop <stelian.pop@leadtechdesign.com>
   4  * Lead Tech Design <www.leadtechdesign.com>
   5  * Thomas Petazzoni, Free Electrons, <thomas.petazzoni@free-electrons.com>
   6  * Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
   7  *
   8  * SPDX-License-Identifier:     GPL-2.0+
   9  */
  10
  11 #include <common.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/io.h>
  19 #include <net.h>
  20 #include <netdev.h>
  21
  22 DECLARE_GLOBAL_DATA_PTR;
  23
  24 #ifdef CONFIG_CMD_NAND
  25 static void usb_a9263_nand_hw_init(void)
  26 {
  27         unsigned long csa;
  28         at91_smc_t *smc = (at91_smc_t *)ATMEL_BASE_SMC0;
  29         at91_matrix_t *matrix = (at91_matrix_t *)ATMEL_BASE_MATRIX;
  30
  31         /* Enable CS3 */
  32         csa = readl(&matrix->csa[0]) | AT91_MATRIX_CSA_EBI_CS3A;
  33         writel(csa, &matrix->csa[0]);
  34
  35         /* Configure SMC CS3 for NAND/SmartMedia */
  36         writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(0) |
  37                AT91_SMC_SETUP_NRD(1) | AT91_SMC_SETUP_NCS_RD(0),
  38                &smc->cs[3].setup);
  39
  40         writel(AT91_SMC_PULSE_NWE(3) | AT91_SMC_PULSE_NCS_WR(3) |
  41                AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(3),
  42                &smc->cs[3].pulse);
  43
  44         writel(AT91_SMC_CYCLE_NWE(5) | AT91_SMC_CYCLE_NRD(5),
  45                &smc->cs[3].cycle);
  46
  47         writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
  48                AT91_SMC_MODE_EXNW_DISABLE |
  49                AT91_SMC_MODE_DBW_8 |
  50                AT91_SMC_MODE_TDF_CYCLE(2), &smc->cs[3].mode);
  51
  52         at91_periph_clk_enable(ATMEL_ID_PIOA);
  53         at91_periph_clk_enable(ATMEL_ID_PIOCDE);
  54
  55         /* Configure RDY/BSY */
  56         gpio_request(CONFIG_SYS_NAND_READY_PIN, "NAND ready/busy");
  57         gpio_direction_input(CONFIG_SYS_NAND_READY_PIN);
  58
  59         /* Enable NandFlash */
  60         gpio_request(CONFIG_SYS_NAND_ENABLE_PIN, "NAND enable");
  61         gpio_direction_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
  62 }
  63 #endif
  64
  65 #ifdef CONFIG_MACB
  66 static void usb_a9263_macb_hw_init(void)
  67 {
  68         at91_periph_clk_enable(ATMEL_ID_EMAC);
  69
  70         /*
  71          * Disable pull-up on:
  72          *  RXDV (PC25) => PHY normal mode (not Test mode)
  73          *  ERX0 (PE25) => PHY ADDR0
  74          *  ERX1 (PE26) => PHY ADDR1 => PHYADDR = 0x0
  75          *
  76          * PHY has internal weak pull-up/pull-down
  77          */
  78         gpio_request(GPIO_PIN_PC(25), "PHY mode");
  79         gpio_direction_input(GPIO_PIN_PC(25));
  80
  81         gpio_request(GPIO_PIN_PE(25), "PHY ADDR0");
  82         gpio_direction_input(GPIO_PIN_PE(25));
  83
  84         gpio_request(GPIO_PIN_PE(26), "PHY ADDR1");
  85         gpio_direction_input(GPIO_PIN_PE(26));
  86
  87         at91_phy_reset();
  88
  89         /* It will set proper pinmux for ports PC25, PE25-26 */
  90         at91_macb_hw_init();
  91 }
  92 #endif
  93
  94 int board_init(void)
  95 {
  96         /* adress of boot parameters */
  97         gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
  98
  99 #ifdef CONFIG_CMD_NAND
 100         usb_a9263_nand_hw_init();
 101 #endif
 102 #ifdef CONFIG_MACB
 103         usb_a9263_macb_hw_init();
 104 #endif
 105 #ifdef CONFIG_USB_OHCI_NEW
 106         at91_uhp_hw_init();
 107 #endif
 108         return 0;
 109 }
 110
 111 int dram_init(void)
 112 {
 113         gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
 114                                     CONFIG_SYS_SDRAM_SIZE);
 115         return 0;
 116 }
 117
 118 int board_eth_init(bd_t *bis)
 119 {
 120         int rc = 0;
 121
 122 #ifdef CONFIG_MACB
 123         rc = macb_eth_initialize(0, (void *)ATMEL_BASE_EMAC, 0x0001);
 124 #endif
 125         return rc;
 126 }