upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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665 lines
15 KiB
665 lines
15 KiB
/*
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* (C) Copyright 2000-2002
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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* (C) Copyright 2002
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* Daniel Engström, Omicron Ceti AB
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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********************************************************************
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*
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* Lots of code copied from:
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*
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* m8xx_pcmcia.c - Linux PCMCIA socket driver for the mpc8xx series.
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* (C) 1999-2000 Magnus Damm <damm@bitsmart.com>
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*
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* "The ExCA standard specifies that socket controllers should provide
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* two IO and five memory windows per socket, which can be independently
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* configured and positioned in the host address space and mapped to
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* arbitrary segments of card address space. " - David A Hinds. 1999
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*
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* This controller does _not_ meet the ExCA standard.
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*
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* m8xx pcmcia controller brief info:
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* + 8 windows (attrib, mem, i/o)
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* + up to two slots (SLOT_A and SLOT_B)
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* + inputpins, outputpins, event and mask registers.
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* - no offset register. sigh.
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*
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* Because of the lacking offset register we must map the whole card.
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* We assign each memory window PCMCIA_MEM_WIN_SIZE address space.
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* Make sure there is (PCMCIA_MEM_WIN_SIZE * PCMCIA_MEM_WIN_NO
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* * PCMCIA_SOCKETS_NO) bytes at PCMCIA_MEM_WIN_BASE.
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* The i/o windows are dynamically allocated at PCMCIA_IO_WIN_BASE.
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* They are maximum 64KByte each...
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*/
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#undef DEBUG /**/
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/*
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* PCMCIA support
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*/
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#include <common.h>
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#include <command.h>
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#include <config.h>
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#include <pci.h>
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#include <asm/io.h>
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#include <pcmcia.h>
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#if ((CONFIG_COMMANDS & CFG_CMD_PCMCIA) || defined(CONFIG_CMD_PCMCIA)) && defined(CONFIG_IDE_TI_CARDBUS)
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int pcmcia_on(int ide_base_bus);
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static int pcmcia_off(void);
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static int hardware_disable(int slot);
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static int hardware_enable(int slot);
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static int voltage_set(int slot, int vcc, int vpp);
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static void print_funcid(int func);
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static void print_fixed(volatile uchar *p);
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static int identify(volatile uchar *p);
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static int check_ide_device(int slot, int ide_base_bus);
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/* ------------------------------------------------------------------------- */
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const char *indent = "\t ";
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/* ------------------------------------------------------------------------- */
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int do_pinit(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
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{
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#ifndef CFG_FIRST_PCMCIA_BUS
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# define CFG_FIRST_PCMCIA_BUS 0
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#endif
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int rcode = 0;
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if (argc != 2) {
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printf ("Usage: pinit {on | off}\n");
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return 1;
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}
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if (strcmp(argv[1],"on") == 0) {
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rcode = pcmcia_on(CFG_FIRST_PCMCIA_BUS);
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} else if (strcmp(argv[1],"off") == 0) {
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rcode = pcmcia_off();
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} else {
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printf ("Usage: pinit {on | off}\n");
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return 1;
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}
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return rcode;
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}
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/* ------------------------------------------------------------------------- */
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static struct pci_device_id supported[] = {
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{ PCI_VENDOR_ID_TI, 0xac50 }, /* Ti PCI1410A */
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{ PCI_VENDOR_ID_TI, 0xac56 }, /* Ti PCI1510 */
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{ }
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};
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static pci_dev_t devbusfn;
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static u32 socket_base;
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static u32 pcmcia_cis_ptr;
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int pcmcia_on(int ide_base_bus)
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{
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u16 dev_id;
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u32 socket_status;
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int slot = 0;
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int cis_len;
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u16 io_base;
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u16 io_len;
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/*
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* Find the CardBus PCI device(s).
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*/
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if ((devbusfn = pci_find_devices(supported, 0)) < 0) {
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printf("Ti CardBus: not found\n");
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return 1;
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}
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pci_read_config_word(devbusfn, PCI_DEVICE_ID, &dev_id);
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if (dev_id == 0xac56) {
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debug("Enable PCMCIA Ti PCI1510\n");
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} else {
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debug("Enable PCMCIA Ti PCI1410A\n");
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}
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pcmcia_cis_ptr = CFG_PCMCIA_CIS_WIN;
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cis_len = CFG_PCMCIA_CIS_WIN_SIZE;
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io_base = CFG_PCMCIA_IO_WIN;
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io_len = CFG_PCMCIA_IO_WIN_SIZE;
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/*
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* Setup the PCI device.
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*/
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pci_read_config_dword(devbusfn, PCI_BASE_ADDRESS_0, &socket_base);
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socket_base &= ~0xf;
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socket_status = readl(socket_base+8);
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if ((socket_status & 6) == 0) {
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printf("Card Present: ");
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switch (socket_status & 0x3c00) {
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case 0x400:
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printf("5V ");
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break;
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case 0x800:
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printf("3.3V ");
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break;
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case 0xc00:
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printf("3.3/5V ");
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break;
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default:
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printf("unsupported Vcc ");
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break;
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}
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switch (socket_status & 0x30) {
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case 0x10:
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printf("16bit PC-Card\n");
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break;
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case 0x20:
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printf("32bit CardBus Card\n");
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break;
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default:
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printf("8bit PC-Card\n");
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break;
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}
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}
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writeb(0x41, socket_base + 0x806); /* Enable I/O window 0 and memory window 0 */
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writeb(0x0e, socket_base + 0x807); /* Reset I/O window options */
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/* Careful: the linux yenta driver do not seem to reset the offset
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* in the i/o windows, so leaving them non-zero is a problem */
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writeb(io_base & 0xff, socket_base + 0x808); /* I/O window 0 base address */
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writeb(io_base>>8, socket_base + 0x809);
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writeb((io_base + io_len - 1) & 0xff, socket_base + 0x80a); /* I/O window 0 end address */
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writeb((io_base + io_len - 1)>>8, socket_base + 0x80b);
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writeb(0x00, socket_base + 0x836); /* I/O window 0 offset address 0x000 */
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writeb(0x00, socket_base + 0x837);
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writeb((pcmcia_cis_ptr&0x000ff000) >> 12,
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socket_base + 0x810); /* Memory window 0 start address bits 19-12 */
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writeb((pcmcia_cis_ptr&0x00f00000) >> 20,
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socket_base + 0x811); /* Memory window 0 start address bits 23-20 */
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writeb(((pcmcia_cis_ptr+cis_len-1) & 0x000ff000) >> 12,
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socket_base + 0x812); /* Memory window 0 end address bits 19-12*/
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writeb(((pcmcia_cis_ptr+cis_len-1) & 0x00f00000) >> 20,
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socket_base + 0x813); /* Memory window 0 end address bits 23-20*/
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writeb(0x00, socket_base + 0x814); /* Memory window 0 offset bits 19-12 */
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writeb(0x40, socket_base + 0x815); /* Memory window 0 offset bits 23-20 and
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* options (read/write, attribute access) */
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writeb(0x00, socket_base + 0x816); /* ExCA card-detect and general control */
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writeb(0x00, socket_base + 0x81e); /* ExCA global control (interrupt modes) */
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writeb((pcmcia_cis_ptr & 0xff000000) >> 24,
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socket_base + 0x840); /* Memory window address bits 31-24 */
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/* turn off voltage */
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if (voltage_set(slot, 0, 0)) {
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return 1;
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}
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/* Enable external hardware */
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if (hardware_enable(slot)) {
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return 1;
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}
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if (check_ide_device(slot, ide_base_bus)) {
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return 1;
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}
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return 0;
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}
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/* ------------------------------------------------------------------------- */
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static int pcmcia_off (void)
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{
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int slot = 0;
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writeb(0x00, socket_base + 0x806); /* disable all I/O and memory windows */
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writeb(0x00, socket_base + 0x808); /* I/O window 0 base address */
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writeb(0x00, socket_base + 0x809);
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writeb(0x00, socket_base + 0x80a); /* I/O window 0 end address */
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writeb(0x00, socket_base + 0x80b);
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writeb(0x00, socket_base + 0x836); /* I/O window 0 offset address */
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writeb(0x00, socket_base + 0x837);
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writeb(0x00, socket_base + 0x80c); /* I/O window 1 base address */
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writeb(0x00, socket_base + 0x80d);
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writeb(0x00, socket_base + 0x80e); /* I/O window 1 end address */
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writeb(0x00, socket_base + 0x80f);
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writeb(0x00, socket_base + 0x838); /* I/O window 1 offset address */
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writeb(0x00, socket_base + 0x839);
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writeb(0x00, socket_base + 0x810); /* Memory window 0 start address */
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writeb(0x00, socket_base + 0x811);
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writeb(0x00, socket_base + 0x812); /* Memory window 0 end address */
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writeb(0x00, socket_base + 0x813);
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writeb(0x00, socket_base + 0x814); /* Memory window 0 offset */
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writeb(0x00, socket_base + 0x815);
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writeb(0xc0, socket_base + 0x840); /* Memory window 0 page address */
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/* turn off voltage */
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voltage_set(slot, 0, 0);
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/* disable external hardware */
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printf ("Shutdown and Poweroff Ti PCI1410A\n");
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hardware_disable(slot);
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return 0;
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}
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/* ------------------------------------------------------------------------- */
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#define MAX_TUPEL_SZ 512
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#define MAX_FEATURES 4
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int ide_devices_found;
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static int check_ide_device(int slot, int ide_base_bus)
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{
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volatile uchar *ident = NULL;
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volatile uchar *feature_p[MAX_FEATURES];
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volatile uchar *p, *start;
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int n_features = 0;
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uchar func_id = ~0;
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uchar code, len;
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ushort config_base = 0;
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int found = 0;
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int i;
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u32 socket_status;
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debug ("PCMCIA MEM: %08X\n", pcmcia_cis_ptr);
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socket_status = readl(socket_base+8);
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if ((socket_status & 6) != 0 || (socket_status & 0x20) != 0) {
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printf("no card or CardBus card\n");
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return 1;
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}
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start = p = (volatile uchar *) pcmcia_cis_ptr;
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while ((p - start) < MAX_TUPEL_SZ) {
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code = *p; p += 2;
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if (code == 0xFF) { /* End of chain */
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break;
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}
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len = *p; p += 2;
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#if defined(DEBUG) && (DEBUG > 1)
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{
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volatile uchar *q = p;
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printf ("\nTuple code %02x length %d\n\tData:",
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code, len);
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for (i = 0; i < len; ++i) {
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printf (" %02x", *q);
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q+= 2;
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}
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}
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#endif /* DEBUG */
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switch (code) {
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case CISTPL_VERS_1:
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ident = p + 4;
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break;
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case CISTPL_FUNCID:
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/* Fix for broken SanDisk which may have 0x80 bit set */
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func_id = *p & 0x7F;
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break;
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case CISTPL_FUNCE:
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if (n_features < MAX_FEATURES)
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feature_p[n_features++] = p;
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break;
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case CISTPL_CONFIG:
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config_base = (*(p+6) << 8) + (*(p+4));
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debug ("\n## Config_base = %04x ###\n", config_base);
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default:
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break;
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}
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p += 2 * len;
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}
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found = identify(ident);
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if (func_id != ((uchar)~0)) {
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print_funcid (func_id);
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if (func_id == CISTPL_FUNCID_FIXED)
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found = 1;
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else
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return 1; /* no disk drive */
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}
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for (i=0; i<n_features; ++i) {
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print_fixed(feature_p[i]);
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}
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if (!found) {
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printf("unknown card type\n");
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return 1;
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}
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/* select config index 1 */
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writeb(1, pcmcia_cis_ptr + config_base);
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#if 0
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printf("Confiuration Option Register: %02x\n", readb(pcmcia_cis_ptr + config_base));
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printf("Card Confiuration and Status Register: %02x\n", readb(pcmcia_cis_ptr + config_base + 2));
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printf("Pin Replacement Register Register: %02x\n", readb(pcmcia_cis_ptr + config_base + 4));
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printf("Socket and Copy Register: %02x\n", readb(pcmcia_cis_ptr + config_base + 6));
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#endif
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ide_devices_found |= (1 << (slot+ide_base_bus));
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return 0;
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}
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static int voltage_set(int slot, int vcc, int vpp)
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{
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u32 socket_control;
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int reg=0;
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switch (slot) {
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case 0:
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reg = socket_base + 0x10;
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break;
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default:
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return 1;
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}
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socket_control = 0;
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switch (vcc) {
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case 50:
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socket_control |= 0x20;
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break;
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case 33:
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socket_control |= 0x30;
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break;
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case 0:
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default:
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}
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switch (vpp) {
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case 120:
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socket_control |= 0x1;
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break;
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case 50:
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socket_control |= 0x2;
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break;
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case 33:
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socket_control |= 0x3;
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break;
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case 0:
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default:
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}
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writel(socket_control, reg);
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debug ("voltage_set: Ti PCI1410A Slot %d, Vcc=%d.%d, Vpp=%d.%d\n",
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slot, vcc/10, vcc%10, vpp/10, vpp%10);
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udelay(500);
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return 0;
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}
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static int hardware_enable(int slot)
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{
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u32 socket_status;
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u16 brg_ctrl;
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int is_82365sl;
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socket_status = readl(socket_base+8);
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if ((socket_status & 6) == 0) {
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switch (socket_status & 0x3c00) {
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case 0x400:
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printf("5V ");
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voltage_set(slot, 50, 0);
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break;
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case 0x800:
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voltage_set(slot, 33, 0);
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break;
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case 0xc00:
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voltage_set(slot, 33, 0);
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break;
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default:
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voltage_set(slot, 0, 0);
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break;
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}
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} else {
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voltage_set(slot, 0, 0);
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}
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pci_read_config_word(devbusfn, PCI_BRIDGE_CONTROL, &brg_ctrl);
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brg_ctrl &= ~PCI_BRIDGE_CTL_BUS_RESET;
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pci_write_config_word(devbusfn, PCI_BRIDGE_CONTROL, brg_ctrl);
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is_82365sl = ((readb(socket_base+0x800) & 0x0f) == 2);
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writeb(is_82365sl?0x90:0x98, socket_base+0x802);
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writeb(0x67, socket_base+0x803);
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udelay(100000);
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#if 0
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printf("ExCA Id %02x, Card Status %02x, Power config %02x, Interrupt Config %02x, bridge control %04x %d\n",
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readb(socket_base+0x800), readb(socket_base+0x801),
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readb(socket_base+0x802), readb(socket_base+0x803), brg_ctrl, is_82365sl);
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#endif
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return ((readb(socket_base+0x801)&0x6c)==0x6c)?0:1;
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}
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static int hardware_disable(int slot)
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{
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voltage_set(slot, 0, 0);
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return 0;
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}
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static void print_funcid(int func)
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{
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puts(indent);
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switch (func) {
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case CISTPL_FUNCID_MULTI:
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puts(" Multi-Function");
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break;
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case CISTPL_FUNCID_MEMORY:
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puts(" Memory");
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break;
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case CISTPL_FUNCID_SERIAL:
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puts(" Serial Port");
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break;
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case CISTPL_FUNCID_PARALLEL:
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puts(" Parallel Port");
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break;
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case CISTPL_FUNCID_FIXED:
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puts(" Fixed Disk");
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break;
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case CISTPL_FUNCID_VIDEO:
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puts(" Video Adapter");
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break;
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case CISTPL_FUNCID_NETWORK:
|
|
puts(" Network Adapter");
|
|
break;
|
|
case CISTPL_FUNCID_AIMS:
|
|
puts(" AIMS Card");
|
|
break;
|
|
case CISTPL_FUNCID_SCSI:
|
|
puts(" SCSI Adapter");
|
|
break;
|
|
default:
|
|
puts(" Unknown");
|
|
break;
|
|
}
|
|
puts(" Card\n");
|
|
}
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
static void print_fixed(volatile uchar *p)
|
|
{
|
|
if (p == NULL)
|
|
return;
|
|
|
|
puts(indent);
|
|
|
|
switch (*p) {
|
|
case CISTPL_FUNCE_IDE_IFACE:
|
|
{ uchar iface = *(p+2);
|
|
|
|
puts ((iface == CISTPL_IDE_INTERFACE) ? " IDE" : " unknown");
|
|
puts (" interface ");
|
|
break;
|
|
}
|
|
case CISTPL_FUNCE_IDE_MASTER:
|
|
case CISTPL_FUNCE_IDE_SLAVE:
|
|
{
|
|
uchar f1 = *(p+2);
|
|
uchar f2 = *(p+4);
|
|
|
|
puts((f1 & CISTPL_IDE_SILICON) ? " [silicon]" : " [rotating]");
|
|
|
|
if (f1 & CISTPL_IDE_UNIQUE) {
|
|
puts(" [unique]");
|
|
}
|
|
|
|
puts((f1 & CISTPL_IDE_DUAL) ? " [dual]" : " [single]");
|
|
|
|
if (f2 & CISTPL_IDE_HAS_SLEEP) {
|
|
puts(" [sleep]");
|
|
}
|
|
|
|
if (f2 & CISTPL_IDE_HAS_STANDBY) {
|
|
puts(" [standby]");
|
|
}
|
|
|
|
if (f2 & CISTPL_IDE_HAS_IDLE) {
|
|
puts(" [idle]");
|
|
}
|
|
|
|
if (f2 & CISTPL_IDE_LOW_POWER) {
|
|
puts(" [low power]");
|
|
}
|
|
|
|
if (f2 & CISTPL_IDE_REG_INHIBIT) {
|
|
puts(" [reg inhibit]");
|
|
}
|
|
|
|
if (f2 & CISTPL_IDE_HAS_INDEX) {
|
|
puts(" [index]");
|
|
}
|
|
|
|
if (f2 & CISTPL_IDE_IOIS16) {
|
|
puts(" [IOis16]");
|
|
}
|
|
|
|
break;
|
|
}
|
|
}
|
|
putc('\n');
|
|
}
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
#define MAX_IDENT_CHARS 64
|
|
#define MAX_IDENT_FIELDS 4
|
|
|
|
static uchar *known_cards[] = {
|
|
"ARGOSY PnPIDE D5",
|
|
NULL
|
|
};
|
|
|
|
static int identify(volatile uchar *p)
|
|
{
|
|
uchar id_str[MAX_IDENT_CHARS];
|
|
uchar data;
|
|
uchar *t;
|
|
uchar **card;
|
|
int i, done;
|
|
|
|
if (p == NULL)
|
|
return (0); /* Don't know */
|
|
|
|
t = id_str;
|
|
done =0;
|
|
|
|
for (i=0; i<=4 && !done; ++i, p+=2) {
|
|
while ((data = *p) != '\0') {
|
|
if (data == 0xFF) {
|
|
done = 1;
|
|
break;
|
|
}
|
|
*t++ = data;
|
|
if (t == &id_str[MAX_IDENT_CHARS-1]) {
|
|
done = 1;
|
|
break;
|
|
}
|
|
p += 2;
|
|
}
|
|
if (!done)
|
|
*t++ = ' ';
|
|
}
|
|
*t = '\0';
|
|
while (--t > id_str) {
|
|
if (*t == ' ') {
|
|
*t = '\0';
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
puts(id_str);
|
|
putc('\n');
|
|
|
|
for (card=known_cards; *card; ++card) {
|
|
debug ("## Compare against \"%s\"\n", *card);
|
|
if (strcmp(*card, id_str) == 0) { /* found! */
|
|
debug ("## CARD FOUND ##\n");
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
return 0; /* don't know */
|
|
}
|
|
|
|
#endif /* CONFIG_IDE_TI_CARDBUS */
|
|
|