board/atmel/sama5d2_ptc_ek/sama5d2_ptc_ek.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (C) 2017 Microchip Corporation
   4  *                    Wenyou Yang <wenyou.yang@microchip.com>
   5  */
   6
   7 #include <common.h>
   8 #include <debug_uart.h>
   9 #include <dm.h>
  10 #include <i2c.h>
  11 #include <init.h>
  12 #include <nand.h>
  13 #include <version.h>
  14 #include <asm/io.h>
  15 #include <asm/arch/at91_common.h>
  16 #include <asm/arch/atmel_pio4.h>
  17 #include <asm/arch/atmel_mpddrc.h>
  18 #include <asm/arch/atmel_sdhci.h>
  19 #include <asm/arch/clk.h>
  20 #include <asm/arch/gpio.h>
  21 #include <asm/arch/sama5d2.h>
  22 #include <asm/arch/sama5d2_smc.h>
  23
  24 extern void at91_pda_detect(void);
  25
  26 DECLARE_GLOBAL_DATA_PTR;
  27
  28 #ifdef CONFIG_NAND_ATMEL
  29 static void board_nand_hw_init(void)
  30 {
  31         struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
  32
  33         at91_periph_clk_enable(ATMEL_ID_HSMC);
  34
  35         /* Configure SMC CS3 for NAND */
  36         writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(1) |
  37                AT91_SMC_SETUP_NRD(1) | AT91_SMC_SETUP_NCS_RD(1),
  38                &smc->cs[3].setup);
  39         writel(AT91_SMC_PULSE_NWE(2) | AT91_SMC_PULSE_NCS_WR(4) |
  40                AT91_SMC_PULSE_NRD(2) | AT91_SMC_PULSE_NCS_RD(3),
  41                &smc->cs[3].pulse);
  42         writel(AT91_SMC_CYCLE_NWE(6) | AT91_SMC_CYCLE_NRD(5),
  43                &smc->cs[3].cycle);
  44         writel(AT91_SMC_TIMINGS_TCLR(2) | AT91_SMC_TIMINGS_TADL(7) |
  45                AT91_SMC_TIMINGS_TAR(2)  | AT91_SMC_TIMINGS_TRR(3)   |
  46                AT91_SMC_TIMINGS_TWB(7)  | AT91_SMC_TIMINGS_RBNSEL(3) |
  47                AT91_SMC_TIMINGS_NFSEL(1), &smc->cs[3].timings);
  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(3),
  52                &smc->cs[3].mode);
  53
  54         atmel_pio4_set_b_periph(AT91_PIO_PORTA, 22, ATMEL_PIO_DRVSTR_ME);       /* D0 */
  55         atmel_pio4_set_b_periph(AT91_PIO_PORTA, 23, ATMEL_PIO_DRVSTR_ME);       /* D1 */
  56         atmel_pio4_set_b_periph(AT91_PIO_PORTA, 24, ATMEL_PIO_DRVSTR_ME);       /* D2 */
  57         atmel_pio4_set_b_periph(AT91_PIO_PORTA, 25, ATMEL_PIO_DRVSTR_ME);       /* D3 */
  58         atmel_pio4_set_b_periph(AT91_PIO_PORTA, 26, ATMEL_PIO_DRVSTR_ME);       /* D4 */
  59         atmel_pio4_set_b_periph(AT91_PIO_PORTA, 27, ATMEL_PIO_DRVSTR_ME);       /* D5 */
  60         atmel_pio4_set_b_periph(AT91_PIO_PORTA, 28, ATMEL_PIO_DRVSTR_ME);       /* D6 */
  61         atmel_pio4_set_b_periph(AT91_PIO_PORTA, 29, ATMEL_PIO_DRVSTR_ME);       /* D7 */
  62         atmel_pio4_set_b_periph(AT91_PIO_PORTB, 2, 0);  /* RE */
  63         atmel_pio4_set_b_periph(AT91_PIO_PORTA, 30, 0); /* WE */
  64         atmel_pio4_set_b_periph(AT91_PIO_PORTA, 31, ATMEL_PIO_PUEN_MASK);       /* NCS */
  65         atmel_pio4_set_b_periph(AT91_PIO_PORTC, 8, ATMEL_PIO_PUEN_MASK);        /* RDY */
  66         atmel_pio4_set_b_periph(AT91_PIO_PORTB, 0, ATMEL_PIO_PUEN_MASK);        /* ALE */
  67         atmel_pio4_set_b_periph(AT91_PIO_PORTB, 1, ATMEL_PIO_PUEN_MASK);        /* CLE */
  68 }
  69 #endif
  70
  71 #ifdef CONFIG_BOARD_LATE_INIT
  72 int board_late_init(void)
  73 {
  74         at91_pda_detect();
  75         return 0;
  76 }
  77 #endif
  78
  79 static void board_usb_hw_init(void)
  80 {
  81         atmel_pio4_set_pio_output(AT91_PIO_PORTB, 12, ATMEL_PIO_PUEN_MASK);
  82 }
  83
  84 #ifdef CONFIG_DEBUG_UART_BOARD_INIT
  85 static void board_uart0_hw_init(void)
  86 {
  87         atmel_pio4_set_c_periph(AT91_PIO_PORTB, 26, ATMEL_PIO_PUEN_MASK);       /* URXD0 */
  88         atmel_pio4_set_c_periph(AT91_PIO_PORTB, 27, 0); /* UTXD0 */
  89
  90         at91_periph_clk_enable(ATMEL_ID_UART0);
  91 }
  92
  93 void board_debug_uart_init(void)
  94 {
  95         board_uart0_hw_init();
  96 }
  97 #endif
  98
  99 #ifdef CONFIG_BOARD_EARLY_INIT_F
 100 int board_early_init_f(void)
 101 {
 102 #ifdef CONFIG_DEBUG_UART
 103         debug_uart_init();
 104 #endif
 105         return 0;
 106 }
 107 #endif
 108
 109 int board_init(void)
 110 {
 111         /* address of boot parameters */
 112         gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
 113
 114 #ifdef CONFIG_NAND_ATMEL
 115         board_nand_hw_init();
 116 #endif
 117 #ifdef CONFIG_CMD_USB
 118         board_usb_hw_init();
 119 #endif
 120         return 0;
 121 }
 122
 123 int dram_init(void)
 124 {
 125         gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
 126                                     CONFIG_SYS_SDRAM_SIZE);
 127         return 0;
 128 }
 129
 130 #define AT24MAC_MAC_OFFSET      0xfa
 131
 132 #ifdef CONFIG_MISC_INIT_R
 133 int misc_init_r(void)
 134 {
 135 #ifdef CONFIG_I2C_EEPROM
 136         at91_set_ethaddr(AT24MAC_MAC_OFFSET);
 137 #endif
 138         return 0;
 139 }
 140 #endif