1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * evm.c 4 * 5 * Copyright (C) 2013, Adeneo Embedded <www.adeneo-embedded.com> 6 * Antoine Tenart, <atenart@adeneo-embedded.com> 7 */ 8 9 #include <common.h> 10 #include <environment.h> 11 #include <spl.h> 12 #include <netdev.h> 13 #include <asm/cache.h> 14 #include <asm/io.h> 15 #include <asm/arch/clock.h> 16 #include <asm/arch/cpu.h> 17 #include <asm/arch/ddr_defs.h> 18 #include <asm/arch/hardware.h> 19 #include <asm/arch/sys_proto.h> 20 #include <asm/arch/mmc_host_def.h> 21 #include <asm/arch/mem.h> 22 #include <asm/arch/mux.h> 23 24 DECLARE_GLOBAL_DATA_PTR; 25 26 int board_init(void) 27 { 28 gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; 29 #if defined(CONFIG_NAND) 30 gpmc_init(); 31 #endif 32 return 0; 33 } 34 35 int board_eth_init(bd_t *bis) 36 { 37 uint8_t mac_addr[6]; 38 uint32_t mac_hi, mac_lo; 39 struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE; 40 41 if (!eth_env_get_enetaddr("ethaddr", mac_addr)) { 42 printf("<ethaddr> not set. Reading from E-fuse\n"); 43 /* try reading mac address from efuse */ 44 mac_lo = readl(&cdev->macid0l); 45 mac_hi = readl(&cdev->macid0h); 46 mac_addr[0] = mac_hi & 0xFF; 47 mac_addr[1] = (mac_hi & 0xFF00) >> 8; 48 mac_addr[2] = (mac_hi & 0xFF0000) >> 16; 49 mac_addr[3] = (mac_hi & 0xFF000000) >> 24; 50 mac_addr[4] = mac_lo & 0xFF; 51 mac_addr[5] = (mac_lo & 0xFF00) >> 8; 52 53 if (is_valid_ethaddr(mac_addr)) 54 eth_env_set_enetaddr("ethaddr", mac_addr); 55 else 56 printf("Unable to read MAC address. Set <ethaddr>\n"); 57 } 58 59 return davinci_emac_initialize(); 60 } 61 62 #ifdef CONFIG_SPL_BUILD 63 static struct module_pin_mux mmc_pin_mux[] = { 64 { OFFSET(pincntl157), PULLDOWN_EN | PULLUDDIS | MODE(0x0) }, 65 { OFFSET(pincntl158), PULLDOWN_EN | PULLUDEN | MODE(0x0) }, 66 { OFFSET(pincntl159), PULLUP_EN | PULLUDDIS | MODE(0x0) }, 67 { OFFSET(pincntl160), PULLUP_EN | PULLUDDIS | MODE(0x0) }, 68 { OFFSET(pincntl161), PULLUP_EN | PULLUDDIS | MODE(0x0) }, 69 { OFFSET(pincntl162), PULLUP_EN | PULLUDDIS | MODE(0x0) }, 70 { OFFSET(pincntl163), PULLUP_EN | PULLUDDIS | MODE(0x0) }, 71 { -1 }, 72 }; 73 74 void set_uart_mux_conf(void) {} 75 76 void set_mux_conf_regs(void) 77 { 78 configure_module_pin_mux(mmc_pin_mux); 79 } 80 81 /* 82 * EMIF Paramters. Refer the EMIF register documentation and the 83 * memory datasheet for details. This is for 796 MHz. 84 */ 85 #define EMIF_TIM1 0x1779C9FE 86 #define EMIF_TIM2 0x50608074 87 #define EMIF_TIM3 0x009F857F 88 #define EMIF_SDREF 0x10001841 89 #define EMIF_SDCFG 0x62A73832 90 #define EMIF_PHYCFG 0x00000110 91 static const struct emif_regs ddr3_emif_regs = { 92 .sdram_config = EMIF_SDCFG, 93 .ref_ctrl = EMIF_SDREF, 94 .sdram_tim1 = EMIF_TIM1, 95 .sdram_tim2 = EMIF_TIM2, 96 .sdram_tim3 = EMIF_TIM3, 97 .emif_ddr_phy_ctlr_1 = EMIF_PHYCFG, 98 }; 99 100 static const struct cmd_control ddr3_ctrl = { 101 .cmd0csratio = 0x100, 102 .cmd0iclkout = 0x001, 103 .cmd1csratio = 0x100, 104 .cmd1iclkout = 0x001, 105 .cmd2csratio = 0x100, 106 .cmd2iclkout = 0x001, 107 }; 108 109 /* These values are obtained from the CCS app */ 110 #define RD_DQS_GATE (0x1B3) 111 #define RD_DQS (0x35) 112 #define WR_DQS (0x93) 113 static struct ddr_data ddr3_data = { 114 .datardsratio0 = ((RD_DQS<<10) | (RD_DQS<<0)), 115 .datawdsratio0 = ((WR_DQS<<10) | (WR_DQS<<0)), 116 .datawiratio0 = ((0x20<<10) | 0x20<<0), 117 .datagiratio0 = ((0x20<<10) | 0x20<<0), 118 .datafwsratio0 = ((RD_DQS_GATE<<10) | (RD_DQS_GATE<<0)), 119 .datawrsratio0 = (((WR_DQS+0x40)<<10) | ((WR_DQS+0x40)<<0)), 120 }; 121 122 static const struct dmm_lisa_map_regs evm_lisa_map_regs = { 123 .dmm_lisa_map_0 = 0x00000000, 124 .dmm_lisa_map_1 = 0x00000000, 125 .dmm_lisa_map_2 = 0x80640300, 126 .dmm_lisa_map_3 = 0xC0640320, 127 }; 128 129 void sdram_init(void) 130 { 131 /* 132 * Pass in our DDR3 config information and that we have 2 EMIFs to 133 * configure. 134 */ 135 config_ddr(&ddr3_data, &ddr3_ctrl, &ddr3_emif_regs, 136 &evm_lisa_map_regs, 2); 137 } 138 #endif /* CONFIG_SPL_BUILD */ 139