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 static const struct pl01x_serial_platdata serial_platdata = { 39 .base = REG_BASE_UART0, 40 .type = TYPE_PL010, 41 .clock = 75000000, 42 }; 43 44 U_BOOT_DEVICE(poplar_serial) = { 45 .name = "serial_pl01x", 46 .platdata = &serial_platdata, 47 }; 48 49 int checkboard(void) 50 { 51 puts("BOARD: Hisilicon HI3798cv200 Poplar\n"); 52 53 return 0; 54 } 55 56 void reset_cpu(ulong addr) 57 { 58 psci_system_reset(); 59 } 60 61 int dram_init(void) 62 { 63 gd->ram_size = get_ram_size(NULL, 0x80000000); 64 65 return 0; 66 } 67 68 /* 69 * Some linux kernel versions don't use memory before its load address, so to 70 * be generic we just pretend it isn't there. In previous uboot versions we 71 * carved the space used by BL31 (runs in DDR on this platfomr) so the PSCI code 72 * could persist in memory and be left alone by the kernel. 73 * 74 * That led to a problem when mapping memory in older kernels. That PSCI code 75 * now lies in memory below the kernel load offset; it therefore won't be 76 * touched by the kernel, and by not specially reserving it we avoid the mapping 77 * problem as well. 78 * 79 */ 80 #define KERNEL_TEXT_OFFSET 0x00080000 81 82 int dram_init_banksize(void) 83 { 84 gd->bd->bi_dram[0].start = KERNEL_TEXT_OFFSET; 85 gd->bd->bi_dram[0].size = gd->ram_size - gd->bd->bi_dram[0].start; 86 87 return 0; 88 } 89 90 static void usb2_phy_config(void) 91 { 92 const u32 config[] = { 93 /* close EOP pre-emphasis. open data pre-emphasis */ 94 0xa1001c, 95 /* Rcomp = 150mW, increase DC level */ 96 0xa00607, 97 /* keep Rcomp working */ 98 0xa10700, 99 /* Icomp = 212mW, increase current drive */ 100 0xa00aab, 101 /* EMI fix: rx_active not stay 1 when error packets received */ 102 0xa11140, 103 /* Comp mode select */ 104 0xa11041, 105 /* adjust eye diagram */ 106 0xa0098c, 107 /* adjust eye diagram */ 108 0xa10a0a, 109 }; 110 int i; 111 112 for (i = 0; i < ARRAY_SIZE(config); i++) { 113 writel(config[i], PERI_CTRL_USB0); 114 clrsetbits_le32(PERI_CTRL_USB0, BIT(21), BIT(20) | BIT(22)); 115 udelay(20); 116 } 117 } 118 119 static void usb2_phy_init(void) 120 { 121 /* reset usb2 controller bus/utmi/roothub */ 122 setbits_le32(PERI_CRG46, USB2_BUS_SRST_REQ | USB2_UTMI0_SRST_REQ | 123 USB2_HST_PHY_SYST_REQ | USB2_OTG_PHY_SYST_REQ); 124 udelay(200); 125 126 /* reset usb2 phy por/utmi */ 127 setbits_le32(PERI_CRG47, USB2_PHY01_SRST_REQ | USB2_PHY01_SRST_TREQ1); 128 udelay(200); 129 130 /* open usb2 ref clk */ 131 setbits_le32(PERI_CRG47, USB2_PHY01_REF_CKEN); 132 udelay(300); 133 134 /* cancel usb2 power on reset */ 135 clrbits_le32(PERI_CRG47, USB2_PHY01_SRST_REQ); 136 udelay(500); 137 138 usb2_phy_config(); 139 140 /* cancel usb2 port reset, wait comp circuit stable */ 141 clrbits_le32(PERI_CRG47, USB2_PHY01_SRST_TREQ1); 142 mdelay(10); 143 144 /* open usb2 controller clk */ 145 setbits_le32(PERI_CRG46, USB2_BUS_CKEN | USB2_OHCI48M_CKEN | 146 USB2_OHCI12M_CKEN | USB2_OTG_UTMI_CKEN | 147 USB2_HST_PHY_CKEN | USB2_UTMI0_CKEN); 148 udelay(200); 149 150 /* cancel usb2 control reset */ 151 clrbits_le32(PERI_CRG46, USB2_BUS_SRST_REQ | USB2_UTMI0_SRST_REQ | 152 USB2_HST_PHY_SYST_REQ | USB2_OTG_PHY_SYST_REQ); 153 udelay(200); 154 } 155 156 int board_mmc_init(bd_t *bis) 157 { 158 int ret; 159 160 ret = hi6220_dwmci_add_port(0, REG_BASE_MCI, 8); 161 if (ret) 162 printf("mmc init error (%d)\n", ret); 163 164 return ret; 165 } 166 167 int board_init(void) 168 { 169 usb2_phy_init(); 170 171 return 0; 172 } 173 174