board/davinci/sonata/sonata.c

   1 /*
   2  * Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
   3  *
   4  * Parts are shamelessly stolen from various TI sources, original copyright
   5  * follows:
   6  * -----------------------------------------------------------------
   7  *
   8  * Copyright (C) 2004 Texas Instruments.
   9  *
  10  * ----------------------------------------------------------------------------
  11  * SPDX-License-Identifier:     GPL-2.0+
  12  * ----------------------------------------------------------------------------
  13  */
  14
  15 #include <common.h>
  16 #include <nand.h>
  17 #include <asm/ti-common/davinci_nand.h>
  18 #include <asm/arch/hardware.h>
  19 #include <asm/arch/davinci_misc.h>
  20
  21 DECLARE_GLOBAL_DATA_PTR;
  22
  23 int board_init(void)
  24 {
  25         /* address of boot parameters */
  26         gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR;
  27
  28         /* Configure AEMIF pins (although this should be configured at boot time
  29          * with pull-up/pull-down resistors) */
  30         REG(PINMUX0) = 0x00000c1f;
  31
  32         davinci_errata_workarounds();
  33
  34         /* Power on required peripherals */
  35         lpsc_on(DAVINCI_LPSC_GPIO);
  36
  37 #if !defined(CONFIG_SYS_USE_DSPLINK)
  38         /* Powerup the DSP */
  39         dsp_on();
  40 #endif /* CONFIG_SYS_USE_DSPLINK */
  41
  42         davinci_enable_uart0();
  43         davinci_enable_emac();
  44         davinci_enable_i2c();
  45
  46         lpsc_on(DAVINCI_LPSC_TIMER1);
  47         timer_init();
  48
  49         return(0);
  50 }
  51
  52 int misc_init_r(void)
  53 {
  54         uint8_t eeprom_enetaddr[6];
  55
  56         /* Read Ethernet MAC address from EEPROM if available. */
  57         if (dvevm_read_mac_address(eeprom_enetaddr))
  58                 davinci_sync_env_enetaddr(eeprom_enetaddr);
  59
  60         return(0);
  61 }
  62
  63 #ifdef CONFIG_NAND_DAVINCI
  64
  65 /* Set WP on deselect, write enable on select */
  66 static void nand_sonata_select_chip(struct mtd_info *mtd, int chip)
  67 {
  68 #define GPIO_SET_DATA01 0x01c67018
  69 #define GPIO_CLR_DATA01 0x01c6701c
  70 #define GPIO_NAND_WP    (1 << 4)
  71 #ifdef SONATA_BOARD_GPIOWP
  72         if (chip < 0) {
  73                 REG(GPIO_CLR_DATA01) |= GPIO_NAND_WP;
  74         } else {
  75                 REG(GPIO_SET_DATA01) |= GPIO_NAND_WP;
  76         }
  77 #endif
  78 }
  79
  80 int board_nand_init(struct nand_chip *nand)
  81 {
  82         davinci_nand_init(nand);
  83         nand->select_chip = nand_sonata_select_chip;
  84         return 0;
  85 }
  86
  87 #endif /* CONFIG_NAND_DAVINCI */