ppc4xx: remove PCI405 board
Signed-off-by: Matthias Fuchs <matthias.fuchs@esd.eu>
This commit is contained in:
@@ -1,12 +0,0 @@
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if TARGET_PCI405
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config SYS_BOARD
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default "pci405"
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config SYS_VENDOR
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default "esd"
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config SYS_CONFIG_NAME
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default "PCI405"
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endif
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@@ -1,6 +0,0 @@
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PCI405 BOARD
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M: Matthias Fuchs <matthias.fuchs@esd-electronics.com>
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S: Maintained
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F: board/esd/pci405/
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F: include/configs/PCI405.h
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F: configs/PCI405_defconfig
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@@ -1,9 +0,0 @@
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#
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# (C) Copyright 2000-2006
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# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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#
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# SPDX-License-Identifier: GPL-2.0+
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#
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obj-y = pci405.o flash.o ../common/misc.o cmd_pci405.o
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obj-y += writeibm.o
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@@ -1,97 +0,0 @@
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/*
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* (C) Copyright 2002-2004
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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 <command.h>
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#include <malloc.h>
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#include <net.h>
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#include <asm/io.h>
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#include <pci.h>
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#include <asm/4xx_pci.h>
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#include <asm/processor.h>
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#include "pci405.h"
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#if defined(CONFIG_CMD_BSP)
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/*
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* Command loadpci: wait for signal from host and boot image.
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*/
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int do_loadpci(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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unsigned int *ptr;
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int count = 0;
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int count2 = 0;
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int i;
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char addr[16];
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char str[] = "\\|/-";
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char *local_args[2];
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/*
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* Mark sync address
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*/
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ptr = 0;
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/* cppcheck-suppress nullPointer */
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*ptr = 0xffffffff;
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puts("\nWaiting for image from pci host -");
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/*
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* Wait for host to write the start address
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*/
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/* cppcheck-suppress nullPointer */
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while (*ptr == 0xffffffff) {
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count++;
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if (!(count % 100)) {
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count2++;
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putc(0x08); /* backspace */
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putc(str[count2 % 4]);
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}
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/* Abort if ctrl-c was pressed */
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if (ctrlc()) {
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puts("\nAbort\n");
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return 0;
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}
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udelay(1000);
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}
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if (*ptr == PCI_RECONFIG_MAGIC) {
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/*
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* Save own pci configuration in PRAM
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*/
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memset((char *)PCI_REGS_ADDR, 0, PCI_REGS_LEN);
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ptr = (unsigned int *)PCI_REGS_ADDR + 1;
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for (i=0; i<0x40; i+=4) {
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pci_read_config_dword(PCIDEVID_405GP, i, ptr++);
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}
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ptr = (unsigned int *)PCI_REGS_ADDR;
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*ptr = crc32(0, (uchar *)PCI_REGS_ADDR+4, PCI_REGS_LEN-4);
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printf("\nStoring PCI Configuration Regs...\n");
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} else {
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sprintf(addr, "%08x", *ptr);
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/*
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* Boot image via bootm
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*/
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printf("\nBooting Image at addr 0x%s ...\n", addr);
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setenv("loadaddr", addr);
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local_args[0] = argv[0];
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local_args[1] = NULL;
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do_bootm (cmdtp, 0, 1, local_args);
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}
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return 0;
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}
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U_BOOT_CMD(
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loadpci, 1, 1, do_loadpci,
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"Wait for pci-image and boot it",
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""
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);
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#endif
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@@ -1,85 +0,0 @@
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/*
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* (C) Copyright 2001
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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 <asm/ppc4xx.h>
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#include <asm/processor.h>
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/*
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* include common flash code (for esd boards)
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*/
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#include "../common/flash.c"
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/*-----------------------------------------------------------------------
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* Functions
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*/
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static ulong flash_get_size (vu_long * addr, flash_info_t * info);
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static void flash_get_offsets (ulong base, flash_info_t * info);
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/*-----------------------------------------------------------------------
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*/
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unsigned long flash_init (void)
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{
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unsigned long size_b0;
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int i;
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uint pbcr;
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unsigned long base_b0;
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int size_val = 0;
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/* Init: no FLASHes known */
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for (i=0; i<CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
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flash_info[i].flash_id = FLASH_UNKNOWN;
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}
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/* Static FLASH Bank configuration here - FIXME XXX */
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size_b0 = flash_get_size((vu_long *)FLASH_BASE0_PRELIM, &flash_info[0]);
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if (flash_info[0].flash_id == FLASH_UNKNOWN) {
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printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
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size_b0, size_b0<<20);
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}
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/* Setup offsets */
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flash_get_offsets (-size_b0, &flash_info[0]);
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/* Re-do sizing to get full correct info */
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mtdcr(EBC0_CFGADDR, PB0CR);
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pbcr = mfdcr(EBC0_CFGDATA);
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mtdcr(EBC0_CFGADDR, PB0CR);
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base_b0 = -size_b0;
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switch (size_b0) {
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case 1 << 20:
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size_val = 0;
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break;
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case 2 << 20:
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size_val = 1;
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break;
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case 4 << 20:
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size_val = 2;
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break;
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case 8 << 20:
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size_val = 3;
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break;
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case 16 << 20:
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size_val = 4;
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break;
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}
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pbcr = (pbcr & 0x0001ffff) | base_b0 | (size_val << 17);
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mtdcr(EBC0_CFGDATA, pbcr);
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/* Monitor protection ON by default */
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(void)flash_protect(FLAG_PROTECT_SET,
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-monitor_flash_len,
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0xffffffff,
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&flash_info[0]);
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flash_info[0].size = size_b0;
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return (size_b0);
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}
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File diff suppressed because it is too large
Load Diff
@@ -1,366 +0,0 @@
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/*
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* (C) Copyright 2001-2004
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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 <asm/processor.h>
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#include <command.h>
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#include <malloc.h>
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#include <pci.h>
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#include <asm/4xx_pci.h>
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#include <asm/io.h>
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#include "pci405.h"
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DECLARE_GLOBAL_DATA_PTR;
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/* Prototypes */
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unsigned long fpga_done_state(void);
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unsigned long fpga_init_state(void);
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#if 0
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#define FPGA_DEBUG
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#endif
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/* predefine these here */
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#define FPGA_DONE_STATE (fpga_done_state())
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#define FPGA_INIT_STATE (fpga_init_state())
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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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#include "fpgadata.c"
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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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#define FPGA_DONE_STATE_V11 (in_be32((void*)GPIO0_IR) & CONFIG_SYS_FPGA_DONE)
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#define FPGA_DONE_STATE_V12 (in_be32((void*)GPIO0_IR) & CONFIG_SYS_FPGA_DONE_V12)
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#define FPGA_INIT_STATE_V11 (in_be32((void*)GPIO0_IR) & CONFIG_SYS_FPGA_INIT)
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#define FPGA_INIT_STATE_V12 (in_be32((void*)GPIO0_IR) & CONFIG_SYS_FPGA_INIT_V12)
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int board_revision(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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* Get version of PCI405 board from GPIO's
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*/
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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) & ~0x00100200);
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out_be32((void*)GPIO0_TCR, in_be32((void*)GPIO0_TCR) & ~0x00100200);
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udelay(1000); /* wait some time before reading input */
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value = in_be32((void*)GPIO0_IR) & 0x00100200; /* 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 0x00100200:
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/* CS2==1 && IRQ5==1 -> version 1.0 and 1.1 */
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return 1;
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case 0x00000200:
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/* CS2==0 && IRQ5==1 -> version 1.2 */
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return 2;
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case 0x00000000:
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/* CS2==0 && IRQ5==0 -> version 1.3 */
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return 3;
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#if 0 /* not yet manufactured ! */
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case 0x00100000:
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/* CS2==1 && IRQ5==0 -> version 1.4 */
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return 4;
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#endif
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default:
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/* should not be reached! */
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return 0;
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}
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}
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unsigned long fpga_done_state(void)
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{
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if (gd->board_type < 2) {
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return FPGA_DONE_STATE_V11;
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} else {
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return FPGA_DONE_STATE_V12;
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}
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}
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unsigned long fpga_init_state(void)
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{
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if (gd->board_type < 2) {
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return FPGA_INIT_STATE_V11;
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} else {
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return FPGA_INIT_STATE_V12;
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}
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}
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int board_early_init_f (void)
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{
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unsigned long CPC0_CR0Reg;
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/*
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* First pull fpga-prg pin low, to disable fpga logic (on version 1.2 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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* 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; active low; level sensitive
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* IRQ 27 (EXT IRQ 2) CAN2; active low; level sensitive
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* IRQ 28 (EXT IRQ 3) CAN3; active low; level sensitive
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* IRQ 29 (EXT IRQ 4) unused; active low; level sensitive
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* IRQ 30 (EXT IRQ 5) FPGA Timestamp; active low; level sensitive
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* IRQ 31 (EXT IRQ 6) PCI Reset; active low; 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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mtdcr(UIC0PR, 0xFFFFFF80); /* set int polarities */
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mtdcr(UIC0TR, 0x10000000); /* set int trigger levels */
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mtdcr(UIC0VCR, 0x00000001); /* set vect base=0,INT0 highest priority*/
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mtdcr(UIC0SR, 0xFFFFFFFF); /* clear all ints */
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/*
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* Setup GPIO pins (IRQ4/GPIO21 as GPIO)
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*/
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CPC0_CR0Reg = mfdcr(CPC0_CR0);
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mtdcr(CPC0_CR0, CPC0_CR0Reg | 0x00008000);
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/*
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* Setup GPIO pins (CS6+CS7 as GPIO)
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*/
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mtdcr(CPC0_CR0, CPC0_CR0Reg | 0x00300000);
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/*
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* EBC Configuration Register: set ready timeout to 512 ebc-clks -> ca. 25 us
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*/
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mtebc (EBC0_CFG, 0xa8400000); /* ebc always driven */
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return 0;
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}
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int misc_init_r (void)
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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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unsigned int *ptr;
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unsigned int *magic;
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/*
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* On PCI-405 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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dst = malloc(CONFIG_SYS_FPGA_MAX_SIZE);
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if (gunzip (dst, CONFIG_SYS_FPGA_MAX_SIZE, (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 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 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 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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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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/*
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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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/*
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* Check if magic for pci reconfig is written
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*/
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magic = (unsigned int *)0x00000004;
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if (*magic == PCI_RECONFIG_MAGIC) {
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/*
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* Rewrite pci config regs (only after soft-reset with magic set)
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*/
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ptr = (unsigned int *)PCI_REGS_ADDR;
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if (crc32(0, (uchar *)PCI_REGS_ADDR+4, PCI_REGS_LEN-4) == *ptr) {
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puts("Restoring PCI Configurations Regs!\n");
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ptr = (unsigned int *)PCI_REGS_ADDR + 1;
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for (i=0; i<0x40; i+=4) {
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pci_write_config_dword(PCIDEVID_405GP, i, *ptr++);
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}
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}
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mtdcr(UIC0SR, 0xFFFFFFFF); /* clear all ints */
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*magic = 0; /* clear pci reconfig magic again */
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}
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/*
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* Decrease PLB latency timeout and reduce priority of the PCI bridge master
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*/
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#define PCI0_BRDGOPT1 0x4a
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pci_write_config_word(PCIDEVID_405GP, PCI0_BRDGOPT1, 0x3f20);
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/*
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* Enable fairness and high bus utilization
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*/
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mtdcr(PLB0_ACR, 0x98000000);
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free(dst);
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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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*/
|
||||
int checkboard (void)
|
||||
{
|
||||
char str[64];
|
||||
int i = getenv_f("serial#", str, sizeof(str));
|
||||
|
||||
puts ("Board: ");
|
||||
|
||||
if (i == -1) {
|
||||
puts ("### No HW ID - assuming PCI405");
|
||||
} else {
|
||||
puts (str);
|
||||
}
|
||||
|
||||
gd->board_type = board_revision();
|
||||
printf(" (Rev 1.%ld", gd->board_type);
|
||||
|
||||
if (gd->board_type >= 2) {
|
||||
unsigned long CPC0_CR0Reg;
|
||||
unsigned long value;
|
||||
|
||||
/*
|
||||
* Setup GPIO pins (Trace/GPIO1 to GPIO)
|
||||
*/
|
||||
CPC0_CR0Reg = mfdcr(CPC0_CR0);
|
||||
mtdcr(CPC0_CR0, CPC0_CR0Reg & ~0x08000000);
|
||||
out_be32((void*)GPIO0_ODR, in_be32((void*)GPIO0_ODR) & ~0x40000000);
|
||||
out_be32((void*)GPIO0_TCR, in_be32((void*)GPIO0_TCR) & ~0x40000000);
|
||||
udelay(1000); /* wait some time before reading input */
|
||||
value = in_be32((void*)GPIO0_IR) & 0x40000000; /* get config bits */
|
||||
if (value) {
|
||||
puts(", 33 MHz PCI");
|
||||
} else {
|
||||
puts(", 66 MHz PCI");
|
||||
}
|
||||
}
|
||||
|
||||
puts(")\n");
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* ------------------------------------------------------------------------- */
|
||||
#define UART1_MCR 0xef600404
|
||||
int wpeeprom(int wp)
|
||||
{
|
||||
int wp_state = wp;
|
||||
|
||||
if (wp == 1) {
|
||||
out_8((void *)UART1_MCR, in_8((void *)UART1_MCR) & ~0x02);
|
||||
} else if (wp == 0) {
|
||||
out_8((void *)UART1_MCR, in_8((void *)UART1_MCR) | 0x02);
|
||||
} else {
|
||||
if (in_8((void *)UART1_MCR) & 0x02) {
|
||||
wp_state = 0;
|
||||
} else {
|
||||
wp_state = 1;
|
||||
}
|
||||
}
|
||||
return wp_state;
|
||||
}
|
||||
|
||||
int do_wpeeprom(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
|
||||
{
|
||||
int wp = -1;
|
||||
if (argc >= 2) {
|
||||
if (argv[1][0] == '1') {
|
||||
wp = 1;
|
||||
} else if (argv[1][0] == '0') {
|
||||
wp = 0;
|
||||
}
|
||||
}
|
||||
|
||||
wp = wpeeprom(wp);
|
||||
printf("EEPROM write protection %s\n", wp ? "ENABLED" : "DISABLED");
|
||||
return 0;
|
||||
}
|
||||
|
||||
U_BOOT_CMD(
|
||||
wpeeprom, 2, 1, do_wpeeprom,
|
||||
"Check/Enable/Disable I2C EEPROM write protection",
|
||||
"wpeeprom\n"
|
||||
" - check I2C EEPROM write protection state\n"
|
||||
"wpeeprom 1\n"
|
||||
" - enable I2C EEPROM write protection\n"
|
||||
"wpeeprom 0\n"
|
||||
" - disable I2C EEPROM write protection"
|
||||
);
|
||||
@@ -1,16 +0,0 @@
|
||||
/*
|
||||
* (C) Copyright 2003
|
||||
* Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
|
||||
*
|
||||
* SPDX-License-Identifier: GPL-2.0+
|
||||
*/
|
||||
|
||||
#ifndef _PCI405_H_
|
||||
#define _PCI405_H_
|
||||
|
||||
#define PCI_REGS_LEN 0x100
|
||||
#define PCI_REGS_ADDR ((unsigned long)0x01000000 - PCI_REGS_LEN)
|
||||
|
||||
#define PCI_RECONFIG_MAGIC 0x07081967
|
||||
|
||||
#endif /* _PCI405_H_ */
|
||||
@@ -1,205 +0,0 @@
|
||||
/*
|
||||
* SPDX-License-Identifier: GPL-2.0 IBM-pibs
|
||||
*/
|
||||
/*----------------------------------------------------------------------------- */
|
||||
/* Function: ext_bus_cntlr_init */
|
||||
/* Description: Initializes the External Bus Controller for the external */
|
||||
/* peripherals. IMPORTANT: For pass1 this code must run from */
|
||||
/* cache since you can not reliably change a peripheral banks */
|
||||
/* timing register (pbxap) while running code from that bank. */
|
||||
/* For ex., since we are running from ROM on bank 0, we can NOT */
|
||||
/* execute the code that modifies bank 0 timings from ROM, so */
|
||||
/* we run it from cache. */
|
||||
/* Bank 0 - Flash and SRAM */
|
||||
/* Bank 1 - NVRAM/RTC */
|
||||
/* Bank 2 - Keyboard/Mouse controller */
|
||||
/* Bank 3 - IR controller */
|
||||
/* Bank 4 - not used */
|
||||
/* Bank 5 - not used */
|
||||
/* Bank 6 - not used */
|
||||
/* Bank 7 - FPGA registers */
|
||||
/*----------------------------------------------------------------------------- */
|
||||
#include <asm/ppc4xx.h>
|
||||
|
||||
#include <ppc_asm.tmpl>
|
||||
#include <ppc_defs.h>
|
||||
|
||||
#include <asm/cache.h>
|
||||
#include <asm/mmu.h>
|
||||
|
||||
|
||||
.globl write_without_sync
|
||||
write_without_sync:
|
||||
/*
|
||||
* Write one values to host via pci busmastering
|
||||
* ptr = 0xc0000000 -> 0x01000000 (PCI)
|
||||
* *ptr = 0x01234567;
|
||||
*/
|
||||
addi r31,0,0
|
||||
lis r31,0xc000
|
||||
|
||||
start1:
|
||||
lis r0,0x0123
|
||||
ori r0,r0,0x4567
|
||||
stw r0,0(r31)
|
||||
|
||||
/*
|
||||
* Read one value back
|
||||
* ptr = (volatile unsigned long *)addr;
|
||||
* val = *ptr;
|
||||
*/
|
||||
|
||||
lwz r0,0(r31)
|
||||
|
||||
/*
|
||||
* One pci config write
|
||||
* ibmPciConfigWrite(0x2e, 2, 0x1234);
|
||||
*/
|
||||
/* subsystem id */
|
||||
|
||||
li r4,0x002C
|
||||
oris r4,r4,0x8000
|
||||
lis r3,0xEEC0
|
||||
stwbrx r4,0,r3
|
||||
|
||||
li r5,0x1234
|
||||
ori r3,r3,0x4
|
||||
stwbrx r5,0,r3
|
||||
|
||||
b start1
|
||||
|
||||
blr /* never reached !!!! */
|
||||
|
||||
.globl write_with_sync
|
||||
write_with_sync:
|
||||
/*
|
||||
* Write one values to host via pci busmastering
|
||||
* ptr = 0xc0000000 -> 0x01000000 (PCI)
|
||||
* *ptr = 0x01234567;
|
||||
*/
|
||||
addi r31,0,0
|
||||
lis r31,0xc000
|
||||
|
||||
start2:
|
||||
lis r0,0x0123
|
||||
ori r0,r0,0x4567
|
||||
stw r0,0(r31)
|
||||
|
||||
/*
|
||||
* Read one value back
|
||||
* ptr = (volatile unsigned long *)addr;
|
||||
* val = *ptr;
|
||||
*/
|
||||
|
||||
lwz r0,0(r31)
|
||||
|
||||
/*
|
||||
* One pci config write
|
||||
* ibmPciConfigWrite(0x2e, 2, 0x1234);
|
||||
*/
|
||||
/* subsystem id */
|
||||
|
||||
li r4,0x002C
|
||||
oris r4,r4,0x8000
|
||||
lis r3,0xEEC0
|
||||
stwbrx r4,0,r3
|
||||
sync
|
||||
|
||||
li r5,0x1234
|
||||
ori r3,r3,0x4
|
||||
stwbrx r5,0,r3
|
||||
sync
|
||||
|
||||
b start2
|
||||
|
||||
blr /* never reached !!!! */
|
||||
|
||||
.globl write_with_less_sync
|
||||
write_with_less_sync:
|
||||
/*
|
||||
* Write one values to host via pci busmastering
|
||||
* ptr = 0xc0000000 -> 0x01000000 (PCI)
|
||||
* *ptr = 0x01234567;
|
||||
*/
|
||||
addi r31,0,0
|
||||
lis r31,0xc000
|
||||
|
||||
start2b:
|
||||
lis r0,0x0123
|
||||
ori r0,r0,0x4567
|
||||
stw r0,0(r31)
|
||||
|
||||
/*
|
||||
* Read one value back
|
||||
* ptr = (volatile unsigned long *)addr;
|
||||
* val = *ptr;
|
||||
*/
|
||||
|
||||
lwz r0,0(r31)
|
||||
|
||||
/*
|
||||
* One pci config write
|
||||
* ibmPciConfigWrite(0x2e, 2, 0x1234);
|
||||
*/
|
||||
/* subsystem id */
|
||||
|
||||
li r4,0x002C
|
||||
oris r4,r4,0x8000
|
||||
lis r3,0xEEC0
|
||||
stwbrx r4,0,r3
|
||||
sync
|
||||
|
||||
li r5,0x1234
|
||||
ori r3,r3,0x4
|
||||
stwbrx r5,0,r3
|
||||
/* sync */
|
||||
|
||||
b start2b
|
||||
|
||||
blr /* never reached !!!! */
|
||||
|
||||
.globl write_with_more_sync
|
||||
write_with_more_sync:
|
||||
/*
|
||||
* Write one values to host via pci busmastering
|
||||
* ptr = 0xc0000000 -> 0x01000000 (PCI)
|
||||
* *ptr = 0x01234567;
|
||||
*/
|
||||
addi r31,0,0
|
||||
lis r31,0xc000
|
||||
|
||||
start3:
|
||||
lis r0,0x0123
|
||||
ori r0,r0,0x4567
|
||||
stw r0,0(r31)
|
||||
sync
|
||||
|
||||
/*
|
||||
* Read one value back
|
||||
* ptr = (volatile unsigned long *)addr;
|
||||
* val = *ptr;
|
||||
*/
|
||||
|
||||
lwz r0,0(r31)
|
||||
sync
|
||||
|
||||
/*
|
||||
* One pci config write
|
||||
* ibmPciConfigWrite(0x2e, 2, 0x1234);
|
||||
*/
|
||||
/* subsystem id (PCIC0_SBSYSVID)*/
|
||||
|
||||
li r4,0x002C
|
||||
oris r4,r4,0x8000
|
||||
lis r3,0xEEC0
|
||||
stwbrx r4,0,r3
|
||||
sync
|
||||
|
||||
li r5,0x1234
|
||||
ori r3,r3,0x4
|
||||
stwbrx r5,0,r3
|
||||
sync
|
||||
|
||||
b start3
|
||||
|
||||
blr /* never reached !!!! */
|
||||
Reference in New Issue
Block a user