diff options
Diffstat (limited to 'u-boot/board/esd/hub405/hub405.c')
| -rw-r--r-- | u-boot/board/esd/hub405/hub405.c | 224 |
1 files changed, 224 insertions, 0 deletions
diff --git a/u-boot/board/esd/hub405/hub405.c b/u-boot/board/esd/hub405/hub405.c new file mode 100644 index 0000000..d17c415 --- /dev/null +++ b/u-boot/board/esd/hub405/hub405.c @@ -0,0 +1,224 @@ +/* + * (C) Copyright 2001-2003 + * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.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 <asm/processor.h> +#include <asm/io.h> +#include <command.h> +#include <malloc.h> + +DECLARE_GLOBAL_DATA_PTR; + +extern void lxt971_no_sleep(void); + +int board_revision(void) +{ + unsigned long osrl_reg; + unsigned long isr1l_reg; + unsigned long tcr_reg; + unsigned long value; + + /* + * Get version of HUB405 board from GPIO's + */ + + /* + * Setup GPIO pin(s) (IRQ6/GPIO23) + */ + osrl_reg = in_be32((void *)GPIO0_OSRH); + isr1l_reg = in_be32((void *)GPIO0_ISR1H); + tcr_reg = in_be32((void *)GPIO0_TCR); + out_be32((void *)GPIO0_OSRH, osrl_reg & ~0x00030000); /* output select */ + out_be32((void *)GPIO0_ISR1H, isr1l_reg | 0x00030000); /* input select */ + out_be32((void *)GPIO0_TCR, tcr_reg & ~0x00000100); /* select input */ + + udelay(1000); /* wait some time before reading input */ + value = in_be32((void *)GPIO0_IR) & 0x00000100; /* get config bits */ + + /* + * Restore GPIO settings + */ + out_be32((void *)GPIO0_OSRH, osrl_reg); /* output select */ + out_be32((void *)GPIO0_ISR1H, isr1l_reg); /* input select */ + out_be32((void *)GPIO0_TCR, tcr_reg); /* enable output driver for outputs */ + + if (value & 0x00000100) { + /* Revision 1.1 or 1.2 detected */ + return 1; + } + + /* Revision 1.0 */ + return 0; +} + + +int board_early_init_f (void) +{ + /* + * IRQ 0-15 405GP internally generated; active high; level sensitive + * IRQ 16 405GP internally generated; active low; level sensitive + * IRQ 17-24 RESERVED + * IRQ 25 (EXT IRQ 0) CAN0; active low; level sensitive + * IRQ 26 (EXT IRQ 1) SER0 ; active low; level sensitive + * IRQ 27 (EXT IRQ 2) SER1; active low; level sensitive + * IRQ 28 (EXT IRQ 3) FPGA 0; active low; level sensitive + * IRQ 29 (EXT IRQ 4) FPGA 1; active low; level sensitive + * IRQ 30 (EXT IRQ 5) PCI INTA; active low; level sensitive + * IRQ 31 (EXT IRQ 6) COMPACT FLASH; active high; level sensitive + */ + mtdcr(UIC0SR, 0xFFFFFFFF); /* clear all ints */ + mtdcr(UIC0ER, 0x00000000); /* disable all ints */ + mtdcr(UIC0CR, 0x00000000); /* set all to be non-critical*/ + mtdcr(UIC0PR, 0xFFFFFF9F); /* set int polarities */ + mtdcr(UIC0TR, 0x10000000); /* set int trigger levels */ + mtdcr(UIC0VCR, 0x00000001); /* set vect base=0,INT0 highest priority*/ + mtdcr(UIC0SR, 0xFFFFFFFF); /* clear all ints */ + + /* + * EBC Configuration Register: set ready timeout to 512 ebc-clks -> ca. 15 us + */ + mtebc (EBC0_CFG, 0xa8400000); /* ebc always driven */ + + return 0; +} + +#define LED_REG (DUART0_BA + 0x20) +int misc_init_r (void) +{ + unsigned long val; + int delay, flashcnt; + char *str; + char hw_rev[4]; + + /* + * Enable interrupts in exar duart mcr[3] + */ + out_8((void *)(DUART0_BA + 4), 0x08); + out_8((void *)(DUART1_BA + 4), 0x08); + out_8((void *)(DUART2_BA + 4), 0x08); + out_8((void *)(DUART3_BA + 4), 0x08); + + /* + * Set RS232/RS422 control (RS232 = high on GPIO) + */ + val = in_be32((void *)GPIO0_OR); + val &= ~(CONFIG_SYS_UART2_RS232 | CONFIG_SYS_UART3_RS232 | + CONFIG_SYS_UART4_RS232 | CONFIG_SYS_UART5_RS232); + + str = getenv("phys0"); + if (!str || (str && (str[0] == '0'))) + val |= CONFIG_SYS_UART2_RS232; + + str = getenv("phys1"); + if (!str || (str && (str[0] == '0'))) + val |= CONFIG_SYS_UART3_RS232; + + str = getenv("phys2"); + if (!str || (str && (str[0] == '0'))) + val |= CONFIG_SYS_UART4_RS232; + + str = getenv("phys3"); + if (!str || (str && (str[0] == '0'))) + val |= CONFIG_SYS_UART5_RS232; + + out_be32((void *)GPIO0_OR, val); + + /* + * check board type and setup AP power + */ + str = getenv("bd_type"); /* this is only set on non prototype hardware */ + if (str != NULL) { + if ((strcmp(str, "swch405") == 0) || ((!strcmp(str, "hub405") && (gd->board_type >= 1)))) { + unsigned char led_reg_default = 0; + str = getenv("ap_pwr"); + if (!str || (str && (str[0] == '1'))) + led_reg_default = 0x04 | 0x02 ; /* U2_LED | AP_PWR */ + + /* + * Flash LEDs + */ + for (flashcnt = 0; flashcnt < 3; flashcnt++) { + /* LED_A..D off */ + out_8((void *)LED_REG, led_reg_default); + for (delay = 0; delay < 100; delay++) + udelay(1000); + /* LED_A..D on */ + out_8((void *)LED_REG, led_reg_default | 0xf0); + for (delay = 0; delay < 50; delay++) + udelay(1000); + } + out_8((void *)LED_REG, led_reg_default); + } + } + + /* + * Reset external DUARTs + */ + out_be32((void *)GPIO0_OR, + in_be32((void *)GPIO0_OR) | CONFIG_SYS_DUART_RST); /* set reset to high */ + udelay(10); /* wait 10us */ + out_be32((void *)GPIO0_OR, + in_be32((void *)GPIO0_OR) & ~CONFIG_SYS_DUART_RST); /* set reset to low */ + udelay(1000); /* wait 1ms */ + + /* + * Store hardware revision in environment for further processing + */ + sprintf(hw_rev, "1.%ld", gd->board_type); + setenv("hw_rev", hw_rev); + return (0); +} + + +/* + * Check Board Identity: + */ +int checkboard (void) +{ + char str[64]; + int i = getenv_f("serial#", str, sizeof(str)); + + puts ("Board: "); + + if (i == -1) { + puts ("### No HW ID - assuming HUB405"); + } else { + puts(str); + } + + if (getenv_f("bd_type", str, sizeof(str)) != -1) { + printf(" (%s", str); + } else { + puts(" (Missing bd_type!"); + } + + gd->board_type = board_revision(); + printf(", Rev 1.%ld)\n", gd->board_type); + + /* + * Disable sleep mode in LXT971 + */ + lxt971_no_sleep(); + + return 0; +} |