diff options
Diffstat (limited to 'board/freescale/m54418twr/m54418twr.c')
| -rw-r--r-- | board/freescale/m54418twr/m54418twr.c | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/board/freescale/m54418twr/m54418twr.c b/board/freescale/m54418twr/m54418twr.c new file mode 100644 index 0000000..6e57bef --- /dev/null +++ b/board/freescale/m54418twr/m54418twr.c @@ -0,0 +1,129 @@ +/* + * Copyright 2010-2012 Freescale Semiconductor, Inc. + * TsiChung Liew (Tsi-Chung.Liew@freescale.com) + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <spi.h> +#include <asm/io.h> +#include <asm/immap.h> +#include <mmc.h> +#include <fsl_esdhc.h> + +DECLARE_GLOBAL_DATA_PTR; + +int checkboard(void) +{ + /* + * need to to: + * Check serial flash size. if 2mb evb, else 8mb demo + */ + puts("Board: "); + puts("Freescale MCF54418 Tower System\n"); + return 0; +}; + +phys_size_t initdram(int board_type) +{ + u32 dramsize; + +#if defined(CONFIG_SERIAL_BOOT) + /* + * Serial Boot: The dram is already initialized in start.S + * only require to return DRAM size + */ + dramsize = CONFIG_SYS_SDRAM_SIZE * 0x100000; +#else + sdramc_t *sdram = (sdramc_t *)(MMAP_SDRAM); + ccm_t *ccm = (ccm_t *)MMAP_CCM; + gpio_t *gpio = (gpio_t *) MMAP_GPIO; + pm_t *pm = (pm_t *) MMAP_PM; + u32 i; + + dramsize = CONFIG_SYS_SDRAM_SIZE * 0x100000; + + for (i = 0x13; i < 0x20; i++) { + if (dramsize == (1 << i)) + break; + } + + out_8(&pm->pmcr0, 0x2E); + out_8(&gpio->mscr_sdram, 1); + + clrbits_be16(&ccm->misccr2, CCM_MISCCR2_FBHALF); + setbits_be16(&ccm->misccr2, CCM_MISCCR2_DDR2CLK); + + out_be32(&sdram->rcrcr, 0x40000000); + out_be32(&sdram->padcr, 0x01030203); + + out_be32(&sdram->cr00, 0x01010101); + out_be32(&sdram->cr01, 0x00000101); + out_be32(&sdram->cr02, 0x01010100); + out_be32(&sdram->cr03, 0x01010000); + out_be32(&sdram->cr04, 0x00010101); + out_be32(&sdram->cr06, 0x00010100); + out_be32(&sdram->cr07, 0x00000001); + out_be32(&sdram->cr08, 0x01000001); + out_be32(&sdram->cr09, 0x00000100); + out_be32(&sdram->cr10, 0x00010001); + out_be32(&sdram->cr11, 0x00000200); + out_be32(&sdram->cr12, 0x01000002); + out_be32(&sdram->cr13, 0x00000000); + out_be32(&sdram->cr14, 0x00000100); + out_be32(&sdram->cr15, 0x02000100); + out_be32(&sdram->cr16, 0x02000407); + out_be32(&sdram->cr17, 0x02030007); + out_be32(&sdram->cr18, 0x02000100); + out_be32(&sdram->cr19, 0x0A030203); + out_be32(&sdram->cr20, 0x00020708); + out_be32(&sdram->cr21, 0x00050008); + out_be32(&sdram->cr22, 0x04030002); + out_be32(&sdram->cr23, 0x00000004); + out_be32(&sdram->cr24, 0x020A0000); + out_be32(&sdram->cr25, 0x0C00000E); + out_be32(&sdram->cr26, 0x00002004); + out_be32(&sdram->cr28, 0x00100010); + out_be32(&sdram->cr29, 0x00100010); + out_be32(&sdram->cr31, 0x07990000); + out_be32(&sdram->cr40, 0x00000000); + out_be32(&sdram->cr41, 0x00C80064); + out_be32(&sdram->cr42, 0x44520002); + out_be32(&sdram->cr43, 0x00C80023); + out_be32(&sdram->cr45, 0x0000C350); + out_be32(&sdram->cr56, 0x04000000); + out_be32(&sdram->cr57, 0x03000304); + out_be32(&sdram->cr58, 0x40040000); + out_be32(&sdram->cr59, 0xC0004004); + out_be32(&sdram->cr60, 0x0642C000); + out_be32(&sdram->cr61, 0x00000642); + asm("tpf"); + + out_be32(&sdram->cr09, 0x01000100); + + udelay(100); +#endif + return dramsize; +}; + +int testdram(void) +{ + return 0; +} |