1 /* 2 * Copyright 2010-2012 Freescale Semiconductor, Inc. 3 * TsiChung Liew (Tsi-Chung.Liew@freescale.com) 4 * 5 * See file CREDITS for list of people who contributed to this 6 * project. 7 * 8 * This program is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU General Public License as 10 * published by the Free Software Foundation; either version 2 of 11 * the License, or (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 21 * MA 02111-1307 USA 22 */ 23 24 #include <common.h> 25 #include <spi.h> 26 #include <asm/io.h> 27 #include <asm/immap.h> 28 #include <mmc.h> 29 #include <fsl_esdhc.h> 30 31 DECLARE_GLOBAL_DATA_PTR; 32 33 int checkboard(void) 34 { 35 /* 36 * need to to: 37 * Check serial flash size. if 2mb evb, else 8mb demo 38 */ 39 puts("Board: "); 40 puts("Freescale MCF54418 Tower System\n"); 41 return 0; 42 }; 43 44 phys_size_t initdram(int board_type) 45 { 46 u32 dramsize; 47 48 #if defined(CONFIG_SERIAL_BOOT) 49 /* 50 * Serial Boot: The dram is already initialized in start.S 51 * only require to return DRAM size 52 */ 53 dramsize = CONFIG_SYS_SDRAM_SIZE * 0x100000; 54 #else 55 sdramc_t *sdram = (sdramc_t *)(MMAP_SDRAM); 56 ccm_t *ccm = (ccm_t *)MMAP_CCM; 57 gpio_t *gpio = (gpio_t *) MMAP_GPIO; 58 pm_t *pm = (pm_t *) MMAP_PM; 59 u32 i; 60 61 dramsize = CONFIG_SYS_SDRAM_SIZE * 0x100000; 62 63 for (i = 0x13; i < 0x20; i++) { 64 if (dramsize == (1 << i)) 65 break; 66 } 67 68 out_8(&pm->pmcr0, 0x2E); 69 out_8(&gpio->mscr_sdram, 1); 70 71 clrbits_be16(&ccm->misccr2, CCM_MISCCR2_FBHALF); 72 setbits_be16(&ccm->misccr2, CCM_MISCCR2_DDR2CLK); 73 74 out_be32(&sdram->rcrcr, 0x40000000); 75 out_be32(&sdram->padcr, 0x01030203); 76 77 out_be32(&sdram->cr00, 0x01010101); 78 out_be32(&sdram->cr01, 0x00000101); 79 out_be32(&sdram->cr02, 0x01010100); 80 out_be32(&sdram->cr03, 0x01010000); 81 out_be32(&sdram->cr04, 0x00010101); 82 out_be32(&sdram->cr06, 0x00010100); 83 out_be32(&sdram->cr07, 0x00000001); 84 out_be32(&sdram->cr08, 0x01000001); 85 out_be32(&sdram->cr09, 0x00000100); 86 out_be32(&sdram->cr10, 0x00010001); 87 out_be32(&sdram->cr11, 0x00000200); 88 out_be32(&sdram->cr12, 0x01000002); 89 out_be32(&sdram->cr13, 0x00000000); 90 out_be32(&sdram->cr14, 0x00000100); 91 out_be32(&sdram->cr15, 0x02000100); 92 out_be32(&sdram->cr16, 0x02000407); 93 out_be32(&sdram->cr17, 0x02030007); 94 out_be32(&sdram->cr18, 0x02000100); 95 out_be32(&sdram->cr19, 0x0A030203); 96 out_be32(&sdram->cr20, 0x00020708); 97 out_be32(&sdram->cr21, 0x00050008); 98 out_be32(&sdram->cr22, 0x04030002); 99 out_be32(&sdram->cr23, 0x00000004); 100 out_be32(&sdram->cr24, 0x020A0000); 101 out_be32(&sdram->cr25, 0x0C00000E); 102 out_be32(&sdram->cr26, 0x00002004); 103 out_be32(&sdram->cr28, 0x00100010); 104 out_be32(&sdram->cr29, 0x00100010); 105 out_be32(&sdram->cr31, 0x07990000); 106 out_be32(&sdram->cr40, 0x00000000); 107 out_be32(&sdram->cr41, 0x00C80064); 108 out_be32(&sdram->cr42, 0x44520002); 109 out_be32(&sdram->cr43, 0x00C80023); 110 out_be32(&sdram->cr45, 0x0000C350); 111 out_be32(&sdram->cr56, 0x04000000); 112 out_be32(&sdram->cr57, 0x03000304); 113 out_be32(&sdram->cr58, 0x40040000); 114 out_be32(&sdram->cr59, 0xC0004004); 115 out_be32(&sdram->cr60, 0x0642C000); 116 out_be32(&sdram->cr61, 0x00000642); 117 asm("tpf"); 118 119 out_be32(&sdram->cr09, 0x01000100); 120 121 udelay(100); 122 #endif 123 return dramsize; 124 }; 125 126 int testdram(void) 127 { 128 return 0; 129 } 130