diff options
Diffstat (limited to 'board/ve8313/ve8313.c')
| -rw-r--r-- | board/ve8313/ve8313.c | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/board/ve8313/ve8313.c b/board/ve8313/ve8313.c new file mode 100644 index 0000000000..8ba1b193a4 --- /dev/null +++ b/board/ve8313/ve8313.c @@ -0,0 +1,215 @@ +/* + * Copyright (C) Freescale Semiconductor, Inc. 2006-2007 + * + * Author: Scott Wood <scottwood@freescale.com> + * + * (C) Copyright 2010 + * Heiko Schocher, DENX Software Engineering, hs@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 <common.h> +#include <libfdt.h> +#include <pci.h> +#include <mpc83xx.h> +#include <ns16550.h> +#include <nand.h> + +#include <asm/bitops.h> +#include <asm/io.h> + +DECLARE_GLOBAL_DATA_PTR; + +extern void disable_addr_trans (void); +extern void enable_addr_trans (void); + +int checkboard(void) +{ + puts("Board: ve8313\n"); + return 0; +} + +static long fixed_sdram(void) +{ + u32 msize = CONFIG_SYS_DDR_SIZE * 1024 * 1024; + +#ifndef CONFIG_SYS_RAMBOOT + volatile immap_t *im = (volatile immap_t *)CONFIG_SYS_IMMR; + u32 msize_log2 = __ilog2(msize); + + out_be32(&im->sysconf.ddrlaw[0].bar, + (CONFIG_SYS_DDR_SDRAM_BASE & 0xfffff000)); + out_be32(&im->sysconf.ddrlaw[0].ar, (LBLAWAR_EN | (msize_log2 - 1))); + out_be32(&im->sysconf.ddrcdr, CONFIG_SYS_DDRCDR_VALUE); + + /* + * Erratum DDR3 requires a 50ms delay after clearing DDRCDR[DDR_cfg], + * or the DDR2 controller may fail to initialize correctly. + */ + __udelay(50000); + + out_be32(&im->ddr.csbnds[0].csbnds, (msize - 1) >> 24); + out_be32(&im->ddr.cs_config[0], CONFIG_SYS_DDR_CONFIG); + + /* Currently we use only one CS, so disable the other bank. */ + out_be32(&im->ddr.cs_config[1], 0); + + out_be32(&im->ddr.sdram_clk_cntl, CONFIG_SYS_DDR_CLK_CNTL); + out_be32(&im->ddr.timing_cfg_3, CONFIG_SYS_DDR_TIMING_3); + out_be32(&im->ddr.timing_cfg_1, CONFIG_SYS_DDR_TIMING_1); + out_be32(&im->ddr.timing_cfg_2, CONFIG_SYS_DDR_TIMING_2); + out_be32(&im->ddr.timing_cfg_0, CONFIG_SYS_DDR_TIMING_0); + + out_be32(&im->ddr.sdram_cfg, CONFIG_SYS_SDRAM_CFG); + + out_be32(&im->ddr.sdram_cfg2, CONFIG_SYS_SDRAM_CFG2); + out_be32(&im->ddr.sdram_mode, CONFIG_SYS_DDR_MODE); + out_be32(&im->ddr.sdram_mode2, CONFIG_SYS_DDR_MODE_2); + + out_be32(&im->ddr.sdram_interval, CONFIG_SYS_DDR_INTERVAL); + sync(); + + /* enable DDR controller */ + setbits_be32(&im->ddr.sdram_cfg, SDRAM_CFG_MEM_EN); + + /* now check the real size */ + disable_addr_trans (); + msize = get_ram_size (CONFIG_SYS_DDR_BASE, msize); + enable_addr_trans (); +#endif + + return msize; +} + +phys_size_t initdram(int board_type) +{ + volatile immap_t *im = (volatile immap_t *)CONFIG_SYS_IMMR; + volatile fsl_lbus_t *lbc = &im->lbus; + u32 msize; + + if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32)im) + return -1; + + /* DDR SDRAM - Main SODIMM */ + msize = fixed_sdram(); + + /* Local Bus setup lbcr and mrtpr */ + out_be32(&lbc->lbcr, CONFIG_SYS_LBC_LBCR); + out_be32(&lbc->mrtpr, CONFIG_SYS_LBC_MRTPR); + sync(); + + /* return total bus SDRAM size(bytes) -- DDR */ + return msize; +} + +#define VE8313_WDT_EN 0x00020000 +#define VE8313_WDT_TRIG 0x00040000 + +int board_early_init_f (void) +{ + volatile immap_t *im = (volatile immap_t *)CONFIG_SYS_IMMR; + volatile gpio83xx_t *gpio = (volatile gpio83xx_t *)im->gpio; + +#if defined(CONFIG_HW_WATCHDOG) + /* enable WDT */ + clrbits_be32(&gpio->dat, VE8313_WDT_EN | VE8313_WDT_TRIG); +#else + /* disable WDT */ + setbits_be32(&gpio->dat, VE8313_WDT_EN | VE8313_WDT_TRIG); +#endif + /* set WDT pins as output */ + setbits_be32(&gpio->dir, VE8313_WDT_EN | VE8313_WDT_TRIG); + + return 0; +} + +#if defined(CONFIG_HW_WATCHDOG) +void hw_watchdog_reset(void) +{ + volatile immap_t *im = (volatile immap_t *)CONFIG_SYS_IMMR; + volatile gpio83xx_t *gpio = (volatile gpio83xx_t *)im->gpio; + unsigned long reg; + + reg = in_be32(&gpio->dat); + if (reg & VE8313_WDT_TRIG) + clrbits_be32(&gpio->dat, VE8313_WDT_TRIG); + else + setbits_be32(&gpio->dat, VE8313_WDT_TRIG); +} +#endif + + +#if defined(CONFIG_PCI) +static struct pci_region pci_regions[] = { + { + bus_start: CONFIG_SYS_PCI1_MEM_BASE, + phys_start: CONFIG_SYS_PCI1_MEM_PHYS, + size: CONFIG_SYS_PCI1_MEM_SIZE, + flags: PCI_REGION_MEM | PCI_REGION_PREFETCH + }, + { + bus_start: CONFIG_SYS_PCI1_MMIO_BASE, + phys_start: CONFIG_SYS_PCI1_MMIO_PHYS, + size: CONFIG_SYS_PCI1_MMIO_SIZE, + flags: PCI_REGION_MEM + }, + { + bus_start: CONFIG_SYS_PCI1_IO_BASE, + phys_start: CONFIG_SYS_PCI1_IO_PHYS, + size: CONFIG_SYS_PCI1_IO_SIZE, + flags: PCI_REGION_IO + } +}; + +void pci_init_board(void) +{ + volatile immap_t *immr = (volatile immap_t *)CONFIG_SYS_IMMR; + volatile clk83xx_t *clk = (volatile clk83xx_t *)&immr->clk; + volatile law83xx_t *pci_law = immr->sysconf.pcilaw; + struct pci_region *reg[] = { pci_regions }; + int warmboot; + + /* Enable all 3 PCI_CLK_OUTPUTs. */ + setbits_be32(&clk->occr, 0xe0000000); + + /* + * Configure PCI Local Access Windows + */ + out_be32(&pci_law[0].bar, CONFIG_SYS_PCI1_MEM_PHYS & LAWBAR_BAR); + out_be32(&pci_law[0].ar, LBLAWAR_EN | LBLAWAR_512MB); + + out_be32(&pci_law[1].bar, CONFIG_SYS_PCI1_IO_PHYS & LAWBAR_BAR); + out_be32(&pci_law[1].ar, LBLAWAR_EN | LBLAWAR_1MB); + + warmboot = gd->bd->bi_bootflags & BOOTFLAG_WARM; + + mpc83xx_pci_init(1, reg, warmboot); +} +#endif + +#if defined(CONFIG_OF_BOARD_SETUP) +void ft_board_setup(void *blob, bd_t *bd) +{ + ft_cpu_setup(blob, bd); +#ifdef CONFIG_PCI + ft_pci_setup(blob, bd); +#endif +} +#endif |