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Diffstat (limited to 'u-boot/board/gdsys/gdppc440etx/gdppc440etx.c')
| -rw-r--r-- | u-boot/board/gdsys/gdppc440etx/gdppc440etx.c | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/u-boot/board/gdsys/gdppc440etx/gdppc440etx.c b/u-boot/board/gdsys/gdppc440etx/gdppc440etx.c new file mode 100644 index 0000000..328eb95 --- /dev/null +++ b/u-boot/board/gdsys/gdppc440etx/gdppc440etx.c @@ -0,0 +1,176 @@ +/* + * (C) Copyright 2008 + * Dirk Eibach, Guntermann & Drunck GmbH, eibach@gdsys.de + * + * Based on board/amcc/yosemite/yosemite.c + * (C) Copyright 2006-2007 + * Stefan Roese, DENX Software Engineering, sr@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 <asm/ppc4xx.h> +#include <asm/processor.h> +#include <asm/io.h> +#include <asm/4xx_pci.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* info for FLASH chips */ +extern flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; + +int board_early_init_f(void) +{ + register uint reg; + + /* + * Setup the external bus controller/chip selects + */ + mfebc(EBC0_CFG, reg); + mtebc(EBC0_CFG, reg | 0x04000000); /* Set ATC */ + + /* + * Setup the GPIO pins + */ + + /* setup Address lines for flash size 64Meg. */ + out32(GPIO0_OSRL, in32(GPIO0_OSRL) | 0x54000000); + out32(GPIO0_TSRL, in32(GPIO0_TSRL) | 0x54000000); + out32(GPIO0_ISR1L, in32(GPIO0_ISR1L) | 0x54000000); + + /* setup emac */ + out32(GPIO0_TCR, in32(GPIO0_TCR) | 0xC080); + out32(GPIO0_TSRL, in32(GPIO0_TSRL) | 0x40); + out32(GPIO0_ISR1L, in32(GPIO0_ISR1L) | 0x55); + out32(GPIO0_OSRH, in32(GPIO0_OSRH) | 0x50004000); + out32(GPIO0_ISR1H, in32(GPIO0_ISR1H) | 0x00440000); + + /* UART0 and UART1*/ + out32(GPIO1_TCR, in32(GPIO1_TCR) | 0x16000000); + out32(GPIO1_OSRL, in32(GPIO1_OSRL) | 0x02180000); + out32(GPIO1_ISR1L, in32(GPIO1_ISR1L) | 0x00400000); + out32(GPIO1_ISR2L, in32(GPIO1_ISR2L) | 0x04010000); + + /* disable boot-eeprom WP */ + out32(GPIO0_OSRL, in32(GPIO0_OSRL) & ~0x00C00000); + out32(GPIO0_TSRL, in32(GPIO0_TSRL) & ~0x00C00000); + out32(GPIO0_ISR1L, in32(GPIO0_ISR1L) & ~0x00C00000); + out32(GPIO0_TCR, in32(GPIO0_TCR) | 0x08000000); + out32(GPIO0_OR, in32(GPIO0_OR) & ~0x08000000); + + /* external interrupts IRQ0...3 */ + out32(GPIO1_TCR, in32(GPIO1_TCR) & ~0x00f00000); + out32(GPIO1_TSRL, in32(GPIO1_TSRL) & ~0x00005500); + out32(GPIO1_ISR1L, in32(GPIO1_ISR1L) | 0x00005500); + + + /* + * Setup the interrupt controller polarities, triggers, etc. + */ + mtdcr(UIC0SR, 0xffffffff); /* clear all */ + mtdcr(UIC0ER, 0x00000000); /* disable all */ + mtdcr(UIC0CR, 0x00000009); /* ATI & UIC1 crit are critical */ + mtdcr(UIC0PR, 0xfffffe13); /* per ref-board manual */ + mtdcr(UIC0TR, 0x01c00008); /* per ref-board manual */ + mtdcr(UIC0VR, 0x00000001); /* int31 highest, base=0x000 */ + mtdcr(UIC0SR, 0xffffffff); /* clear all */ + + mtdcr(UIC1SR, 0xffffffff); /* clear all */ + mtdcr(UIC1ER, 0x00000000); /* disable all */ + mtdcr(UIC1CR, 0x00000000); /* all non-critical */ + mtdcr(UIC1PR, 0xffffe0ff); /* per ref-board manual */ + mtdcr(UIC1TR, 0x00ffc000); /* per ref-board manual */ + mtdcr(UIC1VR, 0x00000001); /* int31 highest, base=0x000 */ + mtdcr(UIC1SR, 0xffffffff); /* clear all */ + + /* + * Setup other serial configuration + */ + mfsdr(SDR0_PCI0, reg); + mtsdr(SDR0_PCI0, 0x80000000 | reg); /* PCI arbiter enabled */ + mtsdr(SDR0_PFC0, 0x00003e00); /* Pin function */ + mtsdr(SDR0_PFC1, 0x00048000); /* Pin function: UART0 has 4 pins */ + + return 0; +} + +int misc_init_r(void) +{ + uint pbcr; + int size_val; + uint sz; + + /* Re-do sizing to get full correct info */ + mfebc(PB0CR, pbcr); + + if (gd->bd->bi_flashsize > 0x08000000) + panic("Max. flash banksize is 128 MB!\n"); + + for (sz = gd->bd->bi_flashsize, size_val = 7; + ((sz & 0x08000000) == 0) && (size_val > 0); --size_val) + sz <<= 1; + + pbcr = (pbcr & 0x0001ffff) | gd->bd->bi_flashstart | (size_val << 17); + mtebc(PB0CR, pbcr); + + /* adjust flash start and offset */ + gd->bd->bi_flashstart = 0 - gd->bd->bi_flashsize; + gd->bd->bi_flashoffset = 0; + + /* Monitor protection ON by default */ + (void)flash_protect(FLAG_PROTECT_SET, + -CONFIG_SYS_MONITOR_LEN, + 0xffffffff, + &flash_info[0]); + + return 0; +} + +int checkboard(void) +{ + char *s = getenv("serial#"); + + printf("Board: GDPPC440ETX - G&D PPC440EP/GR ETX-module"); + + if (s != NULL) { + puts(", serial# "); + puts(s); + } + putc('\n'); + + return 0; +} + +/* + * Override weak pci_pre_init() + */ +#if defined(CONFIG_PCI) +int pci_pre_init(struct pci_controller *hose) +{ + /* First call common code */ + __pci_pre_init(hose); + + /* enable 66 MHz ext. Clock */ + out32(GPIO1_TCR, in32(GPIO1_TCR) | 0x00008000); + out32(GPIO1_OR, in32(GPIO1_OR) | 0x00008000); + + return 1; +} +#endif /* defined(CONFIG_PCI) */ |