1 /* 2 * Olimex MX23 Olinuxino Boot setup 3 * 4 * Copyright (C) 2013 Marek Vasut <marex@denx.de> 5 * 6 * SPDX-License-Identifier: GPL-2.0+ 7 */ 8 9 #include <common.h> 10 #include <config.h> 11 #include <asm/io.h> 12 #include <asm/arch/iomux-mx23.h> 13 #include <asm/arch/imx-regs.h> 14 #include <asm/arch/sys_proto.h> 15 16 #define MUX_CONFIG_EMI (MXS_PAD_3V3 | MXS_PAD_12MA | MXS_PAD_PULLUP) 17 #define MUX_CONFIG_SSP (MXS_PAD_8MA | MXS_PAD_PULLUP) 18 19 const iomux_cfg_t iomux_setup[] = { 20 /* DUART */ 21 MX23_PAD_PWM0__DUART_RX, 22 MX23_PAD_PWM1__DUART_TX, 23 24 /* EMI */ 25 MX23_PAD_EMI_D00__EMI_D00 | MUX_CONFIG_EMI, 26 MX23_PAD_EMI_D01__EMI_D01 | MUX_CONFIG_EMI, 27 MX23_PAD_EMI_D02__EMI_D02 | MUX_CONFIG_EMI, 28 MX23_PAD_EMI_D03__EMI_D03 | MUX_CONFIG_EMI, 29 MX23_PAD_EMI_D04__EMI_D04 | MUX_CONFIG_EMI, 30 MX23_PAD_EMI_D05__EMI_D05 | MUX_CONFIG_EMI, 31 MX23_PAD_EMI_D06__EMI_D06 | MUX_CONFIG_EMI, 32 MX23_PAD_EMI_D07__EMI_D07 | MUX_CONFIG_EMI, 33 MX23_PAD_EMI_D08__EMI_D08 | MUX_CONFIG_EMI, 34 MX23_PAD_EMI_D09__EMI_D09 | MUX_CONFIG_EMI, 35 MX23_PAD_EMI_D10__EMI_D10 | MUX_CONFIG_EMI, 36 MX23_PAD_EMI_D11__EMI_D11 | MUX_CONFIG_EMI, 37 MX23_PAD_EMI_D12__EMI_D12 | MUX_CONFIG_EMI, 38 MX23_PAD_EMI_D13__EMI_D13 | MUX_CONFIG_EMI, 39 MX23_PAD_EMI_D14__EMI_D14 | MUX_CONFIG_EMI, 40 MX23_PAD_EMI_D15__EMI_D15 | MUX_CONFIG_EMI, 41 MX23_PAD_EMI_DQM0__EMI_DQM0 | MUX_CONFIG_EMI, 42 MX23_PAD_EMI_DQM1__EMI_DQM1 | MUX_CONFIG_EMI, 43 MX23_PAD_EMI_DQS0__EMI_DQS0 | MUX_CONFIG_EMI, 44 MX23_PAD_EMI_DQS1__EMI_DQS1 | MUX_CONFIG_EMI, 45 MX23_PAD_EMI_CLK__EMI_CLK | MUX_CONFIG_EMI, 46 MX23_PAD_EMI_CLKN__EMI_CLKN | MUX_CONFIG_EMI, 47 48 MX23_PAD_EMI_A00__EMI_A00 | MUX_CONFIG_EMI, 49 MX23_PAD_EMI_A01__EMI_A01 | MUX_CONFIG_EMI, 50 MX23_PAD_EMI_A02__EMI_A02 | MUX_CONFIG_EMI, 51 MX23_PAD_EMI_A03__EMI_A03 | MUX_CONFIG_EMI, 52 MX23_PAD_EMI_A04__EMI_A04 | MUX_CONFIG_EMI, 53 MX23_PAD_EMI_A05__EMI_A05 | MUX_CONFIG_EMI, 54 MX23_PAD_EMI_A06__EMI_A06 | MUX_CONFIG_EMI, 55 MX23_PAD_EMI_A07__EMI_A07 | MUX_CONFIG_EMI, 56 MX23_PAD_EMI_A08__EMI_A08 | MUX_CONFIG_EMI, 57 MX23_PAD_EMI_A09__EMI_A09 | MUX_CONFIG_EMI, 58 MX23_PAD_EMI_A10__EMI_A10 | MUX_CONFIG_EMI, 59 MX23_PAD_EMI_A11__EMI_A11 | MUX_CONFIG_EMI, 60 MX23_PAD_EMI_A12__EMI_A12 | MUX_CONFIG_EMI, 61 MX23_PAD_EMI_BA0__EMI_BA0 | MUX_CONFIG_EMI, 62 MX23_PAD_EMI_BA1__EMI_BA1 | MUX_CONFIG_EMI, 63 64 MX23_PAD_EMI_CASN__EMI_CASN | MUX_CONFIG_EMI, 65 MX23_PAD_EMI_CE0N__EMI_CE0N | MUX_CONFIG_EMI, 66 MX23_PAD_EMI_CE1N__EMI_CE1N | MUX_CONFIG_EMI, 67 MX23_PAD_EMI_CKE__EMI_CKE | MUX_CONFIG_EMI, 68 MX23_PAD_EMI_RASN__EMI_RASN | MUX_CONFIG_EMI, 69 MX23_PAD_EMI_WEN__EMI_WEN | MUX_CONFIG_EMI, 70 71 /* Green LED */ 72 MX23_PAD_SSP1_DETECT__GPIO_2_1 | 73 (MXS_PAD_3V3 | MXS_PAD_4MA | MXS_PAD_NOPULL), 74 75 /* MMC 0 */ 76 MX23_PAD_SSP1_CMD__SSP1_CMD | MUX_CONFIG_SSP, 77 MX23_PAD_SSP1_DATA0__SSP1_DATA0 | MUX_CONFIG_SSP, 78 MX23_PAD_SSP1_DATA1__SSP1_DATA1 | MUX_CONFIG_SSP, 79 MX23_PAD_SSP1_DATA2__SSP1_DATA2 | MUX_CONFIG_SSP, 80 MX23_PAD_SSP1_DATA3__SSP1_DATA3 | MUX_CONFIG_SSP, 81 MX23_PAD_SSP1_SCK__SSP1_SCK | MUX_CONFIG_SSP, 82 83 /* Ethernet */ 84 MX23_PAD_GPMI_ALE__GPIO_0_17 | 85 (MXS_PAD_3V3 | MXS_PAD_12MA | MXS_PAD_NOPULL), 86 }; 87 88 void board_init_ll(const uint32_t arg, const uint32_t *resptr) 89 { 90 mxs_common_spl_init(arg, resptr, iomux_setup, ARRAY_SIZE(iomux_setup)); 91 } 92 93 /* Fine-tune the DRAM configuration. */ 94 void mxs_adjust_memory_params(uint32_t *dram_vals) 95 { 96 /* Enable Auto Precharge. */ 97 dram_vals[3] |= 1 << 8; 98 /* Enable Fast Writes. */ 99 dram_vals[5] |= 1 << 8; 100 /* tEMRS = 3*tCK */ 101 dram_vals[10] &= ~(0x3 << 8); 102 dram_vals[10] |= (0x3 << 8); 103 /* CASLAT = 3*tCK */ 104 dram_vals[11] &= ~(0x3 << 0); 105 dram_vals[11] |= (0x3 << 0); 106 /* tCKE = 1*tCK */ 107 dram_vals[12] &= ~(0x7 << 0); 108 dram_vals[12] |= (0x1 << 0); 109 /* CASLAT_LIN_GATE = 3*tCK , CASLAT_LIN = 3*tCK, tWTR=2*tCK */ 110 dram_vals[13] &= ~((0xf << 16) | (0xf << 24) | (0xf << 0)); 111 dram_vals[13] |= (0x6 << 16) | (0x6 << 24) | (0x2 << 0); 112 /* tDAL = 6*tCK */ 113 dram_vals[15] &= ~(0xf << 16); 114 dram_vals[15] |= (0x6 << 16); 115 /* tREF = 1040*tCK */ 116 dram_vals[26] &= ~0xffff; 117 dram_vals[26] |= 0x0410; 118 /* tRAS_MAX = 9334*tCK */ 119 dram_vals[32] &= ~0xffff; 120 dram_vals[32] |= 0x2475; 121 } 122