diff options
Diffstat (limited to 'u-boot/board/inka4x0/inka4x0.c')
| -rw-r--r-- | u-boot/board/inka4x0/inka4x0.c | 266 |
1 files changed, 266 insertions, 0 deletions
diff --git a/u-boot/board/inka4x0/inka4x0.c b/u-boot/board/inka4x0/inka4x0.c new file mode 100644 index 0000000..fc498d6 --- /dev/null +++ b/u-boot/board/inka4x0/inka4x0.c @@ -0,0 +1,266 @@ +/* + * (C) Copyright 2008-2009 + * Andreas Pfefferle, DENX Software Engineering, ap@denx.de. + * + * (C) Copyright 2009 + * Detlev Zundel, DENX Software Engineering, dzu@denx.de. + * + * (C) Copyright 2004 + * Mark Jonas, Freescale Semiconductor, mark.jonas@motorola.com. + * + * (C) Copyright 2004 + * Martin Krause, TQ-Systems GmbH, martin.krause@tqs.de + * + * (C) Copyright 2003-2004 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * 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 <asm/io.h> +#include <common.h> +#include <mpc5xxx.h> +#include <pci.h> + +#if defined(CONFIG_DDR_MT46V16M16) +#include "mt46v16m16-75.h" +#elif defined(CONFIG_SDR_MT48LC16M16A2) +#include "mt48lc16m16a2-75.h" +#elif defined(CONFIG_DDR_MT46V32M16) +#include "mt46v32m16.h" +#elif defined(CONFIG_DDR_HYB25D512160BF) +#include "hyb25d512160bf.h" +#elif defined(CONFIG_DDR_K4H511638C) +#include "k4h511638c.h" +#else +#error "INKA4x0 SDRAM: invalid chip type specified!" +#endif + +#ifndef CONFIG_SYS_RAMBOOT +static void sdram_start (int hi_addr) +{ + volatile struct mpc5xxx_sdram *sdram = + (struct mpc5xxx_sdram *)MPC5XXX_SDRAM; + long hi_addr_bit = hi_addr ? 0x01000000 : 0; + + /* unlock mode register */ + out_be32(&sdram->ctrl, SDRAM_CONTROL | 0x80000000 | hi_addr_bit); + + /* precharge all banks */ + out_be32(&sdram->ctrl, SDRAM_CONTROL | 0x80000002 | hi_addr_bit); + +#if SDRAM_DDR + /* set mode register: extended mode */ + out_be32(&sdram->mode, SDRAM_EMODE); + + /* set mode register: reset DLL */ + out_be32(&sdram->mode, SDRAM_MODE | 0x04000000); +#endif + + /* precharge all banks */ + out_be32(&sdram->ctrl, SDRAM_CONTROL | 0x80000002 | hi_addr_bit); + + /* auto refresh */ + out_be32(&sdram->ctrl, SDRAM_CONTROL | 0x80000004 | hi_addr_bit); + + /* set mode register */ + out_be32(&sdram->mode, SDRAM_MODE); + + /* normal operation */ + out_be32(&sdram->ctrl, SDRAM_CONTROL | hi_addr_bit); +} +#endif + +/* + * ATTENTION: Although partially referenced initdram does NOT make real use + * use of CONFIG_SYS_SDRAM_BASE. The code does not work if CONFIG_SYS_SDRAM_BASE + * is something else than 0x00000000. + */ + +phys_size_t initdram (int board_type) +{ + volatile struct mpc5xxx_mmap_ctl *mm = + (struct mpc5xxx_mmap_ctl *) CONFIG_SYS_MBAR; + volatile struct mpc5xxx_cdm *cdm = + (struct mpc5xxx_cdm *) MPC5XXX_CDM; + volatile struct mpc5xxx_sdram *sdram = + (struct mpc5xxx_sdram *) MPC5XXX_SDRAM; + ulong dramsize = 0; +#ifndef CONFIG_SYS_RAMBOOT + long test1, test2; + + /* setup SDRAM chip selects */ + out_be32(&mm->sdram0, 0x0000001c); /* 512MB at 0x0 */ + out_be32(&mm->sdram1, 0x40000000); /* disabled */ + + /* setup config registers */ + out_be32(&sdram->config1, SDRAM_CONFIG1); + out_be32(&sdram->config2, SDRAM_CONFIG2); + +#if SDRAM_DDR + /* set tap delay */ + out_be32(&cdm->porcfg, SDRAM_TAPDELAY); +#endif + + /* find RAM size using SDRAM CS0 only */ + sdram_start(0); + test1 = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, 0x20000000); + sdram_start(1); + test2 = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, 0x20000000); + if (test1 > test2) { + sdram_start(0); + dramsize = test1; + } else { + dramsize = test2; + } + + /* memory smaller than 1MB is impossible */ + if (dramsize < (1 << 20)) { + dramsize = 0; + } + + /* set SDRAM CS0 size according to the amount of RAM found */ + if (dramsize > 0) { + out_be32(&mm->sdram0, 0x13 + + __builtin_ffs(dramsize >> 20) - 1); + } else { + out_be32(&mm->sdram0, 0); /* disabled */ + } + + out_be32(&mm->sdram1, dramsize); /* disabled */ +#else /* CONFIG_SYS_RAMBOOT */ + + /* retrieve size of memory connected to SDRAM CS0 */ + dramsize = in_be32(&mm->sdram0) & 0xFF; + if (dramsize >= 0x13) { + dramsize = (1 << (dramsize - 0x13)) << 20; + } else { + dramsize = 0; + } +#endif /* CONFIG_SYS_RAMBOOT */ + + return dramsize; +} + +int checkboard (void) +{ + puts ("Board: INKA 4X0\n"); + return 0; +} + +void flash_preinit(void) +{ + volatile struct mpc5xxx_lpb *lpb = (struct mpc5xxx_lpb *)MPC5XXX_LPB; + + /* + * Now, when we are in RAM, enable flash write + * access for detection process. + * Note that CS_BOOT (CS0) cannot be cleared when + * executing in flash. + */ + clrbits_be32(&lpb->cs0_cfg, 0x1); /* clear RO */ +} + +int misc_init_f (void) +{ + volatile struct mpc5xxx_gpio *gpio = + (struct mpc5xxx_gpio *) MPC5XXX_GPIO; + volatile struct mpc5xxx_wu_gpio *wu_gpio = + (struct mpc5xxx_wu_gpio *)MPC5XXX_WU_GPIO; + volatile struct mpc5xxx_gpt *gpt; + char tmp[10]; + int i, br; + + i = getenv_f("brightness", tmp, sizeof(tmp)); + br = (i > 0) + ? (int) simple_strtoul (tmp, NULL, 10) + : CONFIG_SYS_BRIGHTNESS; + if (br > 255) + br = 255; + + /* Initialize GPIO output pins. + */ + /* Configure GPT as GPIO output (and set them as they control low-active LEDs */ + for (i = 0; i <= 5; i++) { + gpt = (struct mpc5xxx_gpt *)(MPC5XXX_GPT + (i * 0x10)); + out_be32(&gpt->emsr, 0x34); + } + + /* Configure GPT7 as PWM timer, 1kHz, no ints. */ + gpt = (struct mpc5xxx_gpt *)(MPC5XXX_GPT + (7 * 0x10)); + out_be32(&gpt->emsr, 0); /* Disable */ + out_be32(&gpt->cir, 0x020000fe); + out_be32(&gpt->pwmcr, (br << 16)); + out_be32(&gpt->emsr, 0x3); /* Enable PWM mode and start */ + + /* Configure PSC3_6,7 as GPIO output */ + setbits_be32(&gpio->simple_gpioe, MPC5XXX_GPIO_SIMPLE_PSC3_6 | + MPC5XXX_GPIO_SIMPLE_PSC3_7); + setbits_be32(&gpio->simple_ddr, MPC5XXX_GPIO_SIMPLE_PSC3_6 | + MPC5XXX_GPIO_SIMPLE_PSC3_7); + + /* Configure PSC3_9 and GPIO_WKUP6,7 as GPIO output */ + setbits_8(&wu_gpio->enable, MPC5XXX_GPIO_WKUP_6 | + MPC5XXX_GPIO_WKUP_7 | + MPC5XXX_GPIO_WKUP_PSC3_9); + setbits_8(&wu_gpio->ddr, MPC5XXX_GPIO_WKUP_6 | + MPC5XXX_GPIO_WKUP_7 | + MPC5XXX_GPIO_WKUP_PSC3_9); + + /* Set LR mirror bit because it is low-active */ + setbits_8(&wu_gpio->dvo, MPC5XXX_GPIO_WKUP_7); + + /* Reset Coral-P graphics controller */ + setbits_8(&wu_gpio->dvo, MPC5XXX_GPIO_WKUP_PSC3_9); + + /* Enable display backlight */ + clrbits_8(&gpio->sint_inten, MPC5XXX_GPIO_SINT_PSC3_8); + setbits_8(&gpio->sint_gpioe, MPC5XXX_GPIO_SINT_PSC3_8); + setbits_8(&gpio->sint_ddr, MPC5XXX_GPIO_SINT_PSC3_8); + setbits_8(&gpio->sint_dvo, MPC5XXX_GPIO_SINT_PSC3_8); + + /* + * Configure three wire serial interface to RTC (PSC1_4, + * PSC2_4, PSC3_4, PSC3_5) + */ + setbits_8(&wu_gpio->enable, MPC5XXX_GPIO_WKUP_PSC1_4 | + MPC5XXX_GPIO_WKUP_PSC2_4); + setbits_8(&wu_gpio->ddr, MPC5XXX_GPIO_WKUP_PSC1_4 | + MPC5XXX_GPIO_WKUP_PSC2_4); + clrbits_8(&wu_gpio->dvo, MPC5XXX_GPIO_WKUP_PSC1_4); + clrbits_8(&gpio->sint_inten, MPC5XXX_GPIO_SINT_PSC3_4 | + MPC5XXX_GPIO_SINT_PSC3_5); + setbits_8(&gpio->sint_gpioe, MPC5XXX_GPIO_SINT_PSC3_4 | + MPC5XXX_GPIO_SINT_PSC3_5); + setbits_8(&gpio->sint_ddr, MPC5XXX_GPIO_SINT_PSC3_5); + clrbits_8(&gpio->sint_dvo, MPC5XXX_GPIO_SINT_PSC3_5); + + return 0; +} + +#ifdef CONFIG_PCI +static struct pci_controller hose; + +extern void pci_mpc5xxx_init(struct pci_controller *); + +void pci_init_board(void) +{ + pci_mpc5xxx_init(&hose); +} +#endif |