board/hisilicon/poplar/poplar.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * (C) Copyright 2017 Linaro
   4  * Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
   5  */
   6
   7 #include <dm.h>
   8 #include <common.h>
   9 #include <asm/io.h>
  10 #include <dm/platform_data/serial_pl01x.h>
  11 #include <asm/arch/hi3798cv200.h>
  12 #include <asm/arch/dwmmc.h>
  13 #include <asm/armv8/mmu.h>
  14
  15 DECLARE_GLOBAL_DATA_PTR;
  16
  17 static struct mm_region poplar_mem_map[] = {
  18         {
  19                 .virt = 0x0UL,
  20                 .phys = 0x0UL,
  21                 .size = 0x80000000UL,
  22                 .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
  23                          PTE_BLOCK_INNER_SHARE
  24         }, {
  25                 .virt = 0x80000000UL,
  26                 .phys = 0x80000000UL,
  27                 .size = 0x80000000UL,
  28                 .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
  29                          PTE_BLOCK_NON_SHARE |
  30                          PTE_BLOCK_PXN | PTE_BLOCK_UXN
  31         }, {
  32                 0,
  33         }
  34 };
  35
  36 struct mm_region *mem_map = poplar_mem_map;
  37
  38 #if !CONFIG_IS_ENABLED(OF_CONTROL)
  39 static const struct pl01x_serial_platdata serial_platdata = {
  40         .base = REG_BASE_UART0,
  41         .type = TYPE_PL010,
  42         .clock = 75000000,
  43 };
  44
  45 U_BOOT_DEVICE(poplar_serial) = {
  46         .name = "serial_pl01x",
  47         .platdata = &serial_platdata,
  48 };
  49 #endif
  50
  51 int checkboard(void)
  52 {
  53         puts("BOARD: Hisilicon HI3798cv200 Poplar\n");
  54
  55         return 0;
  56 }
  57
  58 void reset_cpu(ulong addr)
  59 {
  60         psci_system_reset();
  61 }
  62
  63 int dram_init(void)
  64 {
  65         gd->ram_size = get_ram_size(NULL, 0x80000000);
  66
  67         return 0;
  68 }
  69
  70 /*
  71  * Some linux kernel versions don't use memory before its load address, so to
  72  * be generic we just pretend it isn't there.  In previous uboot versions we
  73  * carved the space used by BL31 (runs in DDR on this platfomr) so the PSCI code
  74  * could persist in memory and be left alone by the kernel.
  75  *
  76  * That led to a problem when mapping memory in older kernels.  That PSCI code
  77  * now lies in memory below the kernel load offset; it therefore won't be
  78  * touched by the kernel, and by not specially reserving it we avoid the mapping
  79  * problem as well.
  80  *
  81  */
  82 #define KERNEL_TEXT_OFFSET      0x00080000
  83
  84 int dram_init_banksize(void)
  85 {
  86         gd->bd->bi_dram[0].start = KERNEL_TEXT_OFFSET;
  87         gd->bd->bi_dram[0].size = gd->ram_size - gd->bd->bi_dram[0].start;
  88
  89         return 0;
  90 }
  91
  92 static void usb2_phy_config(void)
  93 {
  94         const u32 config[] = {
  95                 /* close EOP pre-emphasis. open data pre-emphasis */
  96                 0xa1001c,
  97                 /* Rcomp = 150mW, increase DC level */
  98                 0xa00607,
  99                 /* keep Rcomp working */
 100                 0xa10700,
 101                 /* Icomp = 212mW, increase current drive */
 102                 0xa00aab,
 103                 /* EMI fix: rx_active not stay 1 when error packets received */
 104                 0xa11140,
 105                 /* Comp mode select */
 106                 0xa11041,
 107                 /* adjust eye diagram */
 108                 0xa0098c,
 109                 /* adjust eye diagram */
 110                 0xa10a0a,
 111         };
 112         int i;
 113
 114         for (i = 0; i < ARRAY_SIZE(config); i++) {
 115                 writel(config[i], PERI_CTRL_USB0);
 116                 clrsetbits_le32(PERI_CTRL_USB0, BIT(21), BIT(20) | BIT(22));
 117                 udelay(20);
 118         }
 119 }
 120
 121 static void usb2_phy_init(void)
 122 {
 123         /* reset usb2 controller bus/utmi/roothub */
 124         setbits_le32(PERI_CRG46, USB2_BUS_SRST_REQ | USB2_UTMI0_SRST_REQ |
 125                         USB2_HST_PHY_SYST_REQ | USB2_OTG_PHY_SYST_REQ);
 126         udelay(200);
 127
 128         /* reset usb2 phy por/utmi */
 129         setbits_le32(PERI_CRG47, USB2_PHY01_SRST_REQ | USB2_PHY01_SRST_TREQ1);
 130         udelay(200);
 131
 132         /* open usb2 ref clk */
 133         setbits_le32(PERI_CRG47, USB2_PHY01_REF_CKEN);
 134         udelay(300);
 135
 136         /* cancel usb2 power on reset */
 137         clrbits_le32(PERI_CRG47, USB2_PHY01_SRST_REQ);
 138         udelay(500);
 139
 140         usb2_phy_config();
 141
 142         /* cancel usb2 port reset, wait comp circuit stable */
 143         clrbits_le32(PERI_CRG47, USB2_PHY01_SRST_TREQ1);
 144         mdelay(10);
 145
 146         /* open usb2 controller clk */
 147         setbits_le32(PERI_CRG46, USB2_BUS_CKEN | USB2_OHCI48M_CKEN |
 148                         USB2_OHCI12M_CKEN | USB2_OTG_UTMI_CKEN |
 149                         USB2_HST_PHY_CKEN | USB2_UTMI0_CKEN);
 150         udelay(200);
 151
 152         /* cancel usb2 control reset */
 153         clrbits_le32(PERI_CRG46, USB2_BUS_SRST_REQ | USB2_UTMI0_SRST_REQ |
 154                         USB2_HST_PHY_SYST_REQ | USB2_OTG_PHY_SYST_REQ);
 155         udelay(200);
 156 }
 157
 158 int board_mmc_init(bd_t *bis)
 159 {
 160         int ret;
 161
 162         ret = hi6220_dwmci_add_port(0, REG_BASE_MCI, 8);
 163         if (ret)
 164                 printf("mmc init error (%d)\n", ret);
 165
 166         return ret;
 167 }
 168
 169 #if defined(CONFIG_USB_GADGET) && defined(CONFIG_USB_GADGET_DWC2_OTG)
 170 #include <usb.h>
 171 #include <usb/dwc2_udc.h>
 172 #include <g_dnl.h>
 173
 174 static struct dwc2_plat_otg_data poplar_otg_data = {
 175         .regs_otg = HIOTG_BASE_ADDR
 176 };
 177
 178 static void set_usb_to_device(void)
 179 {
 180         setbits_le32(PERI_CTRL_USB3, USB2_2P_CHIPID);
 181 }
 182
 183 int board_usb_init(int index, enum usb_init_type init)
 184 {
 185         set_usb_to_device();
 186         return dwc2_udc_probe(&poplar_otg_data);
 187 }
 188
 189 int g_dnl_bind_fixup(struct usb_device_descriptor *dev, const char *name)
 190 {
 191         if (!env_get("serial#"))
 192                 g_dnl_set_serialnumber("0123456789POPLAR");
 193         return 0;
 194 }
 195 #endif
 196
 197 int board_init(void)
 198 {
 199         usb2_phy_init();
 200
 201         return 0;
 202 }
 203