Alison Wang | efa9f28 | 2012-10-18 19:25:52 +0000 | [diff] [blame] | 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 | } |