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https://github.com/brain-hackers/u-boot-brain
synced 2024-08-20 08:58:52 +09:00
![Matthias Fuchs](/assets/img/avatar_default.png)
- remove some obsolete code - switch to generic board Signed-off-by: Matthias Fuchs <matthias.fuchs@esd.eu>
496 lines
11 KiB
C
496 lines
11 KiB
C
/*
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* (C) Copyright 2001-2003
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* Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <libfdt.h>
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#include <fdt_support.h>
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#include <asm/processor.h>
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#include <asm/io.h>
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#include <command.h>
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#include <malloc.h>
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#include <net.h>
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#include <pci.h>
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DECLARE_GLOBAL_DATA_PTR;
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extern void __ft_board_setup(void *blob, bd_t *bd);
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#undef FPGA_DEBUG
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/* fpga configuration data - generated by bin2cc */
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const unsigned char fpgadata[] =
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{
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#if defined(CONFIG_CPCI405_VER2)
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# include "fpgadata_cpci4052.c"
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#endif
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};
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/*
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* include common fpga code (for esd boards)
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*/
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#include "../common/fpga.c"
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/* Prototypes */
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int cpci405_version(void);
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void lxt971_no_sleep(void);
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int board_early_init_f(void)
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{
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#ifndef CONFIG_CPCI405_VER2
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int index, len, i;
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int status;
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#endif
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#ifdef FPGA_DEBUG
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/* set up serial port with default baudrate */
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(void)get_clocks();
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gd->baudrate = CONFIG_BAUDRATE;
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serial_init();
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console_init_f();
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#endif
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/*
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* First pull fpga-prg pin low,
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* to disable fpga logic (on version 2 board)
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*/
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out_be32((void *)GPIO0_ODR, 0x00000000); /* no open drain pins */
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out_be32((void *)GPIO0_TCR, CONFIG_SYS_FPGA_PRG); /* setup for output */
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out_be32((void *)GPIO0_OR, CONFIG_SYS_FPGA_PRG); /* set output pins to high */
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out_be32((void *)GPIO0_OR, 0); /* pull prg low */
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/*
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* Boot onboard FPGA
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*/
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#ifndef CONFIG_CPCI405_VER2
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if (cpci405_version() == 1) {
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status = fpga_boot((unsigned char *)fpgadata, sizeof(fpgadata));
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if (status != 0) {
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/* booting FPGA failed */
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#ifndef FPGA_DEBUG
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/* set up serial port with default baudrate */
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(void)get_clocks();
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gd->baudrate = CONFIG_BAUDRATE;
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serial_init();
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console_init_f();
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#endif
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printf("\nFPGA: Booting failed ");
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switch (status) {
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case ERROR_FPGA_PRG_INIT_LOW:
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printf("(Timeout: INIT not low after "
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"asserting PROGRAM*)\n ");
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break;
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case ERROR_FPGA_PRG_INIT_HIGH:
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printf("(Timeout: INIT not high after "
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"deasserting PROGRAM*)\n ");
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break;
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case ERROR_FPGA_PRG_DONE:
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printf("(Timeout: DONE not high after "
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"programming FPGA)\n ");
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break;
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}
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/* display infos on fpgaimage */
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index = 15;
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for (i = 0; i < 4; i++) {
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len = fpgadata[index];
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printf("FPGA: %s\n", &(fpgadata[index + 1]));
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index += len + 3;
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}
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putc('\n');
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/* delayed reboot */
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for (i = 20; i > 0; i--) {
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printf("Rebooting in %2d seconds \r",i);
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for (index = 0; index < 1000; index++)
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udelay(1000);
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}
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putc('\n');
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do_reset(NULL, 0, 0, NULL);
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}
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}
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#endif /* !CONFIG_CPCI405_VER2 */
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/*
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* IRQ 0-15 405GP internally generated; active high; level sensitive
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* IRQ 16 405GP internally generated; active low; level sensitive
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* IRQ 17-24 RESERVED
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* IRQ 25 (EXT IRQ 0) CAN0; active low; level sensitive
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* IRQ 26 (EXT IRQ 1) CAN1 (+FPGA on CPCI4052); active low; level sens.
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* IRQ 27 (EXT IRQ 2) PCI SLOT 0; active low; level sensitive
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* IRQ 28 (EXT IRQ 3) PCI SLOT 1; active low; level sensitive
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* IRQ 29 (EXT IRQ 4) PCI SLOT 2; active low; level sensitive
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* IRQ 30 (EXT IRQ 5) PCI SLOT 3; active low; level sensitive
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* IRQ 31 (EXT IRQ 6) COMPACT FLASH; active high; level sensitive
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*/
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mtdcr(UIC0SR, 0xFFFFFFFF); /* clear all ints */
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mtdcr(UIC0ER, 0x00000000); /* disable all ints */
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mtdcr(UIC0CR, 0x00000000); /* set all to be non-critical*/
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#if defined(CONFIG_CPCI405_6U)
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if (cpci405_version() == 3) {
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mtdcr(UIC0PR, 0xFFFFFF99); /* set int polarities */
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} else {
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mtdcr(UIC0PR, 0xFFFFFF81); /* set int polarities */
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}
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#else
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mtdcr(UIC0PR, 0xFFFFFF81); /* set int polarities */
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#endif
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mtdcr(UIC0TR, 0x10000000); /* set int trigger levels */
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mtdcr(UIC0VCR, 0x00000001); /* set vect base=0,
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* INT0 highest priority */
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mtdcr(UIC0SR, 0xFFFFFFFF); /* clear all ints */
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return 0;
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}
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int ctermm2(void)
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{
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#if defined(CONFIG_CPCI405_VER2)
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return 0; /* no, board is cpci405 */
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#else
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if ((in_8((void*)0xf0000400) == 0x00) &&
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(in_8((void*)0xf0000401) == 0x01))
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return 0; /* no, board is cpci405 */
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else
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return -1; /* yes, board is cterm-m2 */
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#endif
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}
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int cpci405_host(void)
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{
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if (mfdcr(CPC0_PSR) & PSR_PCI_ARBIT_EN)
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return -1; /* yes, board is cpci405 host */
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else
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return 0; /* no, board is cpci405 adapter */
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}
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int cpci405_version(void)
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{
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unsigned long CPC0_CR0Reg;
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unsigned long value;
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/*
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* Setup GPIO pins (CS2/GPIO11 and CS3/GPIO12 as GPIO)
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*/
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CPC0_CR0Reg = mfdcr(CPC0_CR0);
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mtdcr(CPC0_CR0, CPC0_CR0Reg | 0x03000000);
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out_be32((void*)GPIO0_ODR, in_be32((void*)GPIO0_ODR) & ~0x00180000);
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out_be32((void*)GPIO0_TCR, in_be32((void*)GPIO0_TCR) & ~0x00180000);
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udelay(1000); /* wait some time before reading input */
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value = in_be32((void*)GPIO0_IR) & 0x00180000; /* get config bits */
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/*
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* Restore GPIO settings
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*/
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mtdcr(CPC0_CR0, CPC0_CR0Reg);
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switch (value) {
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case 0x00180000:
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/* CS2==1 && CS3==1 -> version 1 */
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return 1;
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case 0x00080000:
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/* CS2==0 && CS3==1 -> version 2 */
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return 2;
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case 0x00100000:
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/* CS2==1 && CS3==0 -> version 3 or 6U board */
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return 3;
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case 0x00000000:
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/* CS2==0 && CS3==0 -> version 4 */
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return 4;
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default:
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/* should not be reached! */
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return 2;
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}
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}
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int misc_init_r (void)
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{
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unsigned long CPC0_CR0Reg;
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/* adjust flash start and offset */
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gd->bd->bi_flashstart = 0 - gd->bd->bi_flashsize;
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gd->bd->bi_flashoffset = 0;
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#if defined(CONFIG_CPCI405_VER2)
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{
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unsigned char *dst;
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ulong len = sizeof(fpgadata);
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int status;
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int index;
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int i;
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/*
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* On CPCI-405 version 2 the environment is saved in eeprom!
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* FPGA can be gzip compressed (malloc) and booted this late.
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*/
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if (cpci405_version() >= 2) {
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/*
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* Setup GPIO pins (CS6+CS7 as GPIO)
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*/
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CPC0_CR0Reg = mfdcr(CPC0_CR0);
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mtdcr(CPC0_CR0, CPC0_CR0Reg | 0x00300000);
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dst = malloc(CONFIG_SYS_FPGA_MAX_SIZE);
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if (gunzip(dst, CONFIG_SYS_FPGA_MAX_SIZE,
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(uchar *)fpgadata, &len) != 0) {
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printf("GUNZIP ERROR - must RESET board to recover\n");
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do_reset(NULL, 0, 0, NULL);
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}
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status = fpga_boot(dst, len);
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if (status != 0) {
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printf("\nFPGA: Booting failed ");
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switch (status) {
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case ERROR_FPGA_PRG_INIT_LOW:
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printf("(Timeout: INIT not low after "
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"asserting PROGRAM*)\n ");
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break;
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case ERROR_FPGA_PRG_INIT_HIGH:
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printf("(Timeout: INIT not high after "
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"deasserting PROGRAM*)\n ");
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break;
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case ERROR_FPGA_PRG_DONE:
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printf("(Timeout: DONE not high after "
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"programming FPGA)\n ");
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break;
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}
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/* display infos on fpgaimage */
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index = 15;
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for (i = 0; i < 4; i++) {
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len = dst[index];
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printf("FPGA: %s\n", &(dst[index + 1]));
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index += len + 3;
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}
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putc('\n');
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/* delayed reboot */
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for (i = 20; i > 0; i--) {
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printf("Rebooting in %2d seconds \r", i);
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for (index = 0; index < 1000; index++)
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udelay(1000);
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}
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putc('\n');
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do_reset(NULL, 0, 0, NULL);
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}
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/* restore gpio/cs settings */
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mtdcr(CPC0_CR0, CPC0_CR0Reg);
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puts("FPGA: ");
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/* display infos on fpgaimage */
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index = 15;
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for (i = 0; i < 4; i++) {
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len = dst[index];
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printf("%s ", &(dst[index + 1]));
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index += len + 3;
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}
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putc('\n');
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free(dst);
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/*
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* Reset FPGA via FPGA_DATA pin
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*/
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SET_FPGA(FPGA_PRG | FPGA_CLK);
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udelay(1000); /* wait 1ms */
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SET_FPGA(FPGA_PRG | FPGA_CLK | FPGA_DATA);
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udelay(1000); /* wait 1ms */
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#if defined(CONFIG_CPCI405_6U)
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#error HIER GETH ES WEITER MIT IO ACCESSORS
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if (cpci405_version() == 3) {
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/*
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* Enable outputs in fpga on version 3 board
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*/
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out_be16((void*)CONFIG_SYS_FPGA_BASE_ADDR,
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in_be16((void*)CONFIG_SYS_FPGA_BASE_ADDR) |
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CONFIG_SYS_FPGA_MODE_ENABLE_OUTPUT);
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/*
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* Set outputs to 0
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*/
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out_8((void*)CONFIG_SYS_LED_ADDR, 0x00);
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/*
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* Reset external DUART
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*/
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out_be16((void*)CONFIG_SYS_FPGA_BASE_ADDR,
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in_be16((void*)CONFIG_SYS_FPGA_BASE_ADDR) |
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CONFIG_SYS_FPGA_MODE_DUART_RESET);
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udelay(100);
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out_be16((void*)CONFIG_SYS_FPGA_BASE_ADDR,
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in_be16((void*)CONFIG_SYS_FPGA_BASE_ADDR) &
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~CONFIG_SYS_FPGA_MODE_DUART_RESET);
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}
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#endif
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}
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else {
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puts("\n*** U-Boot Version does not match Board Version!\n");
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puts("*** CPCI-405 Version 1.x detected!\n");
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puts("*** Please use correct U-Boot version "
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"(CPCI405 instead of CPCI4052)!\n\n");
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}
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}
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#else /* CONFIG_CPCI405_VER2 */
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if (cpci405_version() >= 2) {
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puts("\n*** U-Boot Version does not match Board Version!\n");
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puts("*** CPCI-405 Board Version 2.x detected!\n");
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puts("*** Please use correct U-Boot version "
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"(CPCI4052 instead of CPCI405)!\n\n");
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}
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#endif /* CONFIG_CPCI405_VER2 */
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/*
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* Select cts (and not dsr) on uart1
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*/
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CPC0_CR0Reg = mfdcr(CPC0_CR0);
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mtdcr(CPC0_CR0, CPC0_CR0Reg | 0x00001000);
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return 0;
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}
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/*
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* Check Board Identity:
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*/
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int checkboard(void)
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{
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#ifndef CONFIG_CPCI405_VER2
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int index;
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int len;
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#endif
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char str[64];
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int i = getenv_f("serial#", str, sizeof(str));
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unsigned short ver;
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puts("Board: ");
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if (i == -1)
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puts("### No HW ID - assuming CPCI405");
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else
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puts(str);
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ver = cpci405_version();
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printf(" (Ver %d.x, ", ver);
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if (ctermm2()) {
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char str[4];
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/*
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* Read board-id and save in env-variable
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*/
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sprintf(str, "%d", *(unsigned char *)0xf0000400);
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setenv("boardid", str);
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printf("CTERM-M2 - Id=%s)", str);
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} else {
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if (cpci405_host())
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puts("PCI Host Version)");
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else
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puts("PCI Adapter Version)");
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}
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#ifndef CONFIG_CPCI405_VER2
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puts("\nFPGA: ");
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/* display infos on fpgaimage */
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index = 15;
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for (i = 0; i < 4; i++) {
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len = fpgadata[index];
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printf("%s ", &(fpgadata[index + 1]));
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index += len + 3;
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}
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#endif
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putc('\n');
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return 0;
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}
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void reset_phy(void)
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{
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#if defined(CONFIG_LXT971_NO_SLEEP)
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/*
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* Disable sleep mode in LXT971
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*/
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lxt971_no_sleep();
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#endif
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}
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#if defined(CONFIG_CPCI405_VER2) && defined (CONFIG_IDE_RESET)
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void ide_set_reset(int on)
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{
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/*
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* Assert or deassert CompactFlash Reset Pin
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*/
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if (on) { /* assert RESET */
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out_be16((void*)CONFIG_SYS_FPGA_BASE_ADDR,
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in_be16((void*)CONFIG_SYS_FPGA_BASE_ADDR) &
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~CONFIG_SYS_FPGA_MODE_CF_RESET);
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} else { /* release RESET */
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out_be16((void*)CONFIG_SYS_FPGA_BASE_ADDR,
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in_be16((void*)CONFIG_SYS_FPGA_BASE_ADDR) |
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CONFIG_SYS_FPGA_MODE_CF_RESET);
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}
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}
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#endif /* CONFIG_IDE_RESET && CONFIG_CPCI405_VER2 */
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#if defined(CONFIG_PCI)
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void cpci405_pci_fixup_irq(struct pci_controller *hose, pci_dev_t dev)
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{
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unsigned char int_line = 0xff;
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/*
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* Write pci interrupt line register (cpci405 specific)
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*/
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switch (PCI_DEV(dev) & 0x03) {
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case 0:
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int_line = 27 + 2;
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break;
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case 1:
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int_line = 27 + 3;
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break;
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case 2:
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int_line = 27 + 0;
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break;
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case 3:
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int_line = 27 + 1;
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break;
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}
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pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE, int_line);
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}
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int pci_pre_init(struct pci_controller *hose)
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{
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hose->fixup_irq = cpci405_pci_fixup_irq;
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return 1;
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}
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#endif /* defined(CONFIG_PCI) */
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#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
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int ft_board_setup(void *blob, bd_t *bd)
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{
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int rc;
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__ft_board_setup(blob, bd);
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/*
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* Disable PCI in adapter mode.
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*/
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if (!cpci405_host()) {
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rc = fdt_find_and_setprop(blob, "/plb/pci@ec000000", "status",
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"disabled", sizeof("disabled"), 1);
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if (rc) {
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printf("Unable to update property status in PCI node, "
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"err=%s\n",
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fdt_strerror(rc));
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}
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}
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return 0;
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}
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#endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */
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