board/broadcom/bcm28155_ap/bcm28155_ap.c

   1 /*
   2  * Copyright 2013 Broadcom Corporation.
   3  *
   4  * SPDX-License-Identifier:      GPL-2.0+
   5  */
   6
   7 #include <common.h>
   8 #include <asm/io.h>
   9 #include <asm/mach-types.h>
  10 #include <mmc.h>
  11 #include <asm/kona-common/kona_sdhci.h>
  12 #include <asm/kona-common/clk.h>
  13 #include <asm/arch/sysmap.h>
  14
  15 #include <usb.h>
  16 #include <usb/dwc2_udc.h>
  17 #include <g_dnl.h>
  18
  19 #define SECWATCHDOG_SDOGCR_OFFSET       0x00000000
  20 #define SECWATCHDOG_SDOGCR_EN_SHIFT     27
  21 #define SECWATCHDOG_SDOGCR_SRSTEN_SHIFT 26
  22 #define SECWATCHDOG_SDOGCR_CLKS_SHIFT   20
  23 #define SECWATCHDOG_SDOGCR_LD_SHIFT     0
  24
  25 #ifndef CONFIG_USB_SERIALNO
  26 #define CONFIG_USB_SERIALNO "1234567890"
  27 #endif
  28
  29 DECLARE_GLOBAL_DATA_PTR;
  30
  31 /*
  32  * board_init - early hardware init
  33  */
  34 int board_init(void)
  35 {
  36         printf("Relocation Offset is: %08lx\n", gd->reloc_off);
  37
  38         /* adress of boot parameters */
  39         gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
  40
  41         clk_init();
  42
  43         return 0;
  44 }
  45
  46 /*
  47  * misc_init_r - miscellaneous platform dependent initializations
  48  */
  49 int misc_init_r(void)
  50 {
  51         /* Disable watchdog reset - watchdog unused */
  52         writel((0 << SECWATCHDOG_SDOGCR_EN_SHIFT) |
  53                (0 << SECWATCHDOG_SDOGCR_SRSTEN_SHIFT) |
  54                (4 << SECWATCHDOG_SDOGCR_CLKS_SHIFT) |
  55                (0x5a0 << SECWATCHDOG_SDOGCR_LD_SHIFT),
  56                (SECWD_BASE_ADDR + SECWATCHDOG_SDOGCR_OFFSET));
  57
  58         return 0;
  59 }
  60
  61 /*
  62  * dram_init - sets uboots idea of sdram size
  63  */
  64 int dram_init(void)
  65 {
  66         gd->ram_size = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE,
  67                                     CONFIG_SYS_SDRAM_SIZE);
  68         return 0;
  69 }
  70
  71 /* This is called after dram_init() so use get_ram_size result */
  72 void dram_init_banksize(void)
  73 {
  74         gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
  75         gd->bd->bi_dram[0].size = gd->ram_size;
  76 }
  77
  78 #ifdef CONFIG_KONA_SDHCI
  79 /*
  80  * mmc_init - Initializes mmc
  81  */
  82 int board_mmc_init(bd_t *bis)
  83 {
  84         int ret = 0;
  85
  86         /* Register eMMC - SDIO2 */
  87         ret = kona_sdhci_init(1, 400000, 0);
  88         if (ret)
  89                 return ret;
  90
  91         /* Register SD Card - SDIO4 kona_mmc_init assumes 0 based index */
  92         ret = kona_sdhci_init(3, 400000, 0);
  93         return ret;
  94 }
  95 #endif
  96
  97 #ifdef CONFIG_USB_GADGET
  98 static struct dwc2_plat_otg_data bcm_otg_data = {
  99         .regs_otg       = HSOTG_BASE_ADDR
 100 };
 101
 102 int board_usb_init(int index, enum usb_init_type init)
 103 {
 104         debug("%s: performing dwc2_udc_probe\n", __func__);
 105         return dwc2_udc_probe(&bcm_otg_data);
 106 }
 107
 108 int g_dnl_bind_fixup(struct usb_device_descriptor *dev, const char *name)
 109 {
 110         debug("%s\n", __func__);
 111         if (!getenv("serial#"))
 112                 g_dnl_set_serialnumber(CONFIG_USB_SERIALNO);
 113         return 0;
 114 }
 115
 116 int g_dnl_get_board_bcd_device_number(int gcnum)
 117 {
 118         debug("%s\n", __func__);
 119         return 1;
 120 }
 121
 122 int board_usb_cleanup(int index, enum usb_init_type init)
 123 {
 124         debug("%s\n", __func__);
 125         return 0;
 126 }
 127 #endif