+++ /dev/null
-/*
- * (C) Copyright 2000-2002
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- * (C) Copyright 2002
- * Daniel Engström, Omicron Ceti AB
- *
- * SPDX-License-Identifier: GPL-2.0+
- *
- ********************************************************************
- *
- * Lots of code copied from:
- *
- * m8xx_pcmcia.c - Linux PCMCIA socket driver for the mpc8xx series.
- * (C) 1999-2000 Magnus Damm <damm@bitsmart.com>
- *
- * "The ExCA standard specifies that socket controllers should provide
- * two IO and five memory windows per socket, which can be independently
- * configured and positioned in the host address space and mapped to
- * arbitrary segments of card address space. " - David A Hinds. 1999
- *
- * This controller does _not_ meet the ExCA standard.
- *
- * m8xx pcmcia controller brief info:
- * + 8 windows (attrib, mem, i/o)
- * + up to two slots (SLOT_A and SLOT_B)
- * + inputpins, outputpins, event and mask registers.
- * - no offset register. sigh.
- *
- * Because of the lacking offset register we must map the whole card.
- * We assign each memory window PCMCIA_MEM_WIN_SIZE address space.
- * Make sure there is (PCMCIA_MEM_WIN_SIZE * PCMCIA_MEM_WIN_NO
- * * PCMCIA_SOCKETS_NO) bytes at PCMCIA_MEM_WIN_BASE.
- * The i/o windows are dynamically allocated at PCMCIA_IO_WIN_BASE.
- * They are maximum 64KByte each...
- */
-
-
-#undef DEBUG /**/
-
-/*
- * PCMCIA support
- */
-#include <common.h>
-#include <command.h>
-#include <config.h>
-#include <pci.h>
-#include <asm/io.h>
-
-#include <pcmcia.h>
-
-#if defined(CONFIG_CMD_PCMCIA)
-
-int pcmcia_on(int ide_base_bus);
-
-static int hardware_disable(int slot);
-static int hardware_enable(int slot);
-static int voltage_set(int slot, int vcc, int vpp);
-static void print_funcid(int func);
-static void print_fixed(volatile char *p);
-static int identify(volatile char *p);
-static int check_ide_device(int slot, int ide_base_bus);
-
-
-/* ------------------------------------------------------------------------- */
-
-
-const char *indent = "\t ";
-
-/* ------------------------------------------------------------------------- */
-
-
-static struct pci_device_id supported[] = {
- { PCI_VENDOR_ID_TI, 0xac50 }, /* Ti PCI1410A */
- { PCI_VENDOR_ID_TI, 0xac56 }, /* Ti PCI1510 */
- { }
-};
-
-static pci_dev_t devbusfn;
-static u32 socket_base;
-static u32 pcmcia_cis_ptr;
-
-int pcmcia_on(int ide_base_bus)
-{
- u16 dev_id;
- u32 socket_status;
- int slot = 0;
- int cis_len;
- u16 io_base;
- u16 io_len;
-
- /*
- * Find the CardBus PCI device(s).
- */
- if ((devbusfn = pci_find_devices(supported, 0)) < 0) {
- printf("Ti CardBus: not found\n");
- return 1;
- }
-
- pci_read_config_word(devbusfn, PCI_DEVICE_ID, &dev_id);
-
- if (dev_id == 0xac56) {
- debug("Enable PCMCIA Ti PCI1510\n");
- } else {
- debug("Enable PCMCIA Ti PCI1410A\n");
- }
-
- pcmcia_cis_ptr = CONFIG_SYS_PCMCIA_CIS_WIN;
- cis_len = CONFIG_SYS_PCMCIA_CIS_WIN_SIZE;
-
- io_base = CONFIG_SYS_PCMCIA_IO_WIN;
- io_len = CONFIG_SYS_PCMCIA_IO_WIN_SIZE;
-
- /*
- * Setup the PCI device.
- */
- pci_read_config_dword(devbusfn, PCI_BASE_ADDRESS_0, &socket_base);
- socket_base &= ~0xf;
-
- socket_status = readl(socket_base+8);
- if ((socket_status & 6) == 0) {
- printf("Card Present: ");
-
- switch (socket_status & 0x3c00) {
-
- case 0x400:
- printf("5V ");
- break;
- case 0x800:
- printf("3.3V ");
- break;
- case 0xc00:
- printf("3.3/5V ");
- break;
- default:
- printf("unsupported Vcc ");
- break;
- }
- switch (socket_status & 0x30) {
- case 0x10:
- printf("16bit PC-Card\n");
- break;
- case 0x20:
- printf("32bit CardBus Card\n");
- break;
- default:
- printf("8bit PC-Card\n");
- break;
- }
- }
-
-
- writeb(0x41, socket_base + 0x806); /* Enable I/O window 0 and memory window 0 */
- writeb(0x0e, socket_base + 0x807); /* Reset I/O window options */
-
- /* Careful: the linux yenta driver do not seem to reset the offset
- * in the i/o windows, so leaving them non-zero is a problem */
-
- writeb(io_base & 0xff, socket_base + 0x808); /* I/O window 0 base address */
- writeb(io_base>>8, socket_base + 0x809);
- writeb((io_base + io_len - 1) & 0xff, socket_base + 0x80a); /* I/O window 0 end address */
- writeb((io_base + io_len - 1)>>8, socket_base + 0x80b);
- writeb(0x00, socket_base + 0x836); /* I/O window 0 offset address 0x000 */
- writeb(0x00, socket_base + 0x837);
-
-
- writeb((pcmcia_cis_ptr&0x000ff000) >> 12,
- socket_base + 0x810); /* Memory window 0 start address bits 19-12 */
- writeb((pcmcia_cis_ptr&0x00f00000) >> 20,
- socket_base + 0x811); /* Memory window 0 start address bits 23-20 */
- writeb(((pcmcia_cis_ptr+cis_len-1) & 0x000ff000) >> 12,
- socket_base + 0x812); /* Memory window 0 end address bits 19-12*/
- writeb(((pcmcia_cis_ptr+cis_len-1) & 0x00f00000) >> 20,
- socket_base + 0x813); /* Memory window 0 end address bits 23-20*/
- writeb(0x00, socket_base + 0x814); /* Memory window 0 offset bits 19-12 */
- writeb(0x40, socket_base + 0x815); /* Memory window 0 offset bits 23-20 and
- * options (read/write, attribute access) */
- writeb(0x00, socket_base + 0x816); /* ExCA card-detect and general control */
- writeb(0x00, socket_base + 0x81e); /* ExCA global control (interrupt modes) */
-
- writeb((pcmcia_cis_ptr & 0xff000000) >> 24,
- socket_base + 0x840); /* Memory window address bits 31-24 */
-
-
- /* turn off voltage */
- if (voltage_set(slot, 0, 0)) {
- return 1;
- }
-
- /* Enable external hardware */
- if (hardware_enable(slot)) {
- return 1;
- }
-
- if (check_ide_device(slot, ide_base_bus)) {
- return 1;
- }
-
- return 0;
-}
-
-/* ------------------------------------------------------------------------- */
-
-
-#if defined(CONFIG_CMD_PCMCIA)
-int pcmcia_off (void)
-{
- int slot = 0;
-
- writeb(0x00, socket_base + 0x806); /* disable all I/O and memory windows */
-
- writeb(0x00, socket_base + 0x808); /* I/O window 0 base address */
- writeb(0x00, socket_base + 0x809);
- writeb(0x00, socket_base + 0x80a); /* I/O window 0 end address */
- writeb(0x00, socket_base + 0x80b);
- writeb(0x00, socket_base + 0x836); /* I/O window 0 offset address */
- writeb(0x00, socket_base + 0x837);
-
- writeb(0x00, socket_base + 0x80c); /* I/O window 1 base address */
- writeb(0x00, socket_base + 0x80d);
- writeb(0x00, socket_base + 0x80e); /* I/O window 1 end address */
- writeb(0x00, socket_base + 0x80f);
- writeb(0x00, socket_base + 0x838); /* I/O window 1 offset address */
- writeb(0x00, socket_base + 0x839);
-
- writeb(0x00, socket_base + 0x810); /* Memory window 0 start address */
- writeb(0x00, socket_base + 0x811);
- writeb(0x00, socket_base + 0x812); /* Memory window 0 end address */
- writeb(0x00, socket_base + 0x813);
- writeb(0x00, socket_base + 0x814); /* Memory window 0 offset */
- writeb(0x00, socket_base + 0x815);
-
- writeb(0xc0, socket_base + 0x840); /* Memory window 0 page address */
-
-
- /* turn off voltage */
- voltage_set(slot, 0, 0);
-
- /* disable external hardware */
- printf ("Shutdown and Poweroff Ti PCI1410A\n");
- hardware_disable(slot);
-
- return 0;
-}
-
-#endif
-
-/* ------------------------------------------------------------------------- */
-
-
-#define MAX_TUPEL_SZ 512
-#define MAX_FEATURES 4
-int ide_devices_found;
-static int check_ide_device(int slot, int ide_base_bus)
-{
- volatile char *ident = NULL;
- volatile char *feature_p[MAX_FEATURES];
- volatile char *p, *start;
- int n_features = 0;
- uchar func_id = ~0;
- uchar code, len;
- ushort config_base = 0;
- int found = 0;
- int i;
- u32 socket_status;
-
- debug ("PCMCIA MEM: %08X\n", pcmcia_cis_ptr);
-
- socket_status = readl(socket_base+8);
-
- if ((socket_status & 6) != 0 || (socket_status & 0x20) != 0) {
- printf("no card or CardBus card\n");
- return 1;
- }
-
- start = p = (volatile char *) pcmcia_cis_ptr;
-
- while ((p - start) < MAX_TUPEL_SZ) {
-
- code = *p; p += 2;
-
- if (code == 0xFF) { /* End of chain */
- break;
- }
-
- len = *p; p += 2;
-#if defined(DEBUG) && (DEBUG > 1)
- {
- volatile uchar *q = p;
- printf ("\nTuple code %02x length %d\n\tData:",
- code, len);
-
- for (i = 0; i < len; ++i) {
- printf (" %02x", *q);
- q+= 2;
- }
- }
-#endif /* DEBUG */
- switch (code) {
- case CISTPL_VERS_1:
- ident = p + 4;
- break;
- case CISTPL_FUNCID:
- /* Fix for broken SanDisk which may have 0x80 bit set */
- func_id = *p & 0x7F;
- break;
- case CISTPL_FUNCE:
- if (n_features < MAX_FEATURES)
- feature_p[n_features++] = p;
- break;
- case CISTPL_CONFIG:
- config_base = (*(p+6) << 8) + (*(p+4));
- debug ("\n## Config_base = %04x ###\n", config_base);
- default:
- break;
- }
- p += 2 * len;
- }
-
- found = identify(ident);
-
- if (func_id != ((uchar)~0)) {
- print_funcid (func_id);
-
- if (func_id == CISTPL_FUNCID_FIXED)
- found = 1;
- else
- return 1; /* no disk drive */
- }
-
- for (i=0; i<n_features; ++i) {
- print_fixed(feature_p[i]);
- }
-
- if (!found) {
- printf("unknown card type\n");
- return 1;
- }
-
- /* select config index 1 */
- writeb(1, pcmcia_cis_ptr + config_base);
-
-#if 0
- printf("Confiuration Option Register: %02x\n", readb(pcmcia_cis_ptr + config_base));
- printf("Card Confiuration and Status Register: %02x\n", readb(pcmcia_cis_ptr + config_base + 2));
- printf("Pin Replacement Register Register: %02x\n", readb(pcmcia_cis_ptr + config_base + 4));
- printf("Socket and Copy Register: %02x\n", readb(pcmcia_cis_ptr + config_base + 6));
-#endif
- ide_devices_found |= (1 << (slot+ide_base_bus));
-
- return 0;
-}
-
-
-static int voltage_set(int slot, int vcc, int vpp)
-{
- u32 socket_control;
- int reg=0;
-
- switch (slot) {
- case 0:
- reg = socket_base + 0x10;
- break;
- default:
- return 1;
- }
-
- socket_control = 0;
-
-
- switch (vcc) {
- case 50:
- socket_control |= 0x20;
- break;
- case 33:
- socket_control |= 0x30;
- break;
- case 0:
- default: ;
- }
-
- switch (vpp) {
- case 120:
- socket_control |= 0x1;
- break;
- case 50:
- socket_control |= 0x2;
- break;
- case 33:
- socket_control |= 0x3;
- break;
- case 0:
- default: ;
- }
-
- writel(socket_control, reg);
-
- debug ("voltage_set: Ti PCI1410A Slot %d, Vcc=%d.%d, Vpp=%d.%d\n",
- slot, vcc/10, vcc%10, vpp/10, vpp%10);
-
- udelay(500);
- return 0;
-}
-
-
-static int hardware_enable(int slot)
-{
- u32 socket_status;
- u16 brg_ctrl;
- int is_82365sl;
-
- socket_status = readl(socket_base+8);
-
- if ((socket_status & 6) == 0) {
-
- switch (socket_status & 0x3c00) {
-
- case 0x400:
- printf("5V ");
- voltage_set(slot, 50, 0);
- break;
- case 0x800:
- voltage_set(slot, 33, 0);
- break;
- case 0xc00:
- voltage_set(slot, 33, 0);
- break;
- default:
- voltage_set(slot, 0, 0);
- break;
- }
- } else {
- voltage_set(slot, 0, 0);
- }
-
- pci_read_config_word(devbusfn, PCI_BRIDGE_CONTROL, &brg_ctrl);
- brg_ctrl &= ~PCI_BRIDGE_CTL_BUS_RESET;
- pci_write_config_word(devbusfn, PCI_BRIDGE_CONTROL, brg_ctrl);
- is_82365sl = ((readb(socket_base+0x800) & 0x0f) == 2);
- writeb(is_82365sl?0x90:0x98, socket_base+0x802);
- writeb(0x67, socket_base+0x803);
- udelay(100000);
-#if 0
- printf("ExCA Id %02x, Card Status %02x, Power config %02x, Interrupt Config %02x, bridge control %04x %d\n",
- readb(socket_base+0x800), readb(socket_base+0x801),
- readb(socket_base+0x802), readb(socket_base+0x803), brg_ctrl, is_82365sl);
-#endif
-
- return ((readb(socket_base+0x801)&0x6c)==0x6c)?0:1;
-}
-
-
-static int hardware_disable(int slot)
-{
- voltage_set(slot, 0, 0);
- return 0;
-}
-
-static void print_funcid(int func)
-{
- puts(indent);
- switch (func) {
- case CISTPL_FUNCID_MULTI:
- puts(" Multi-Function");
- break;
- case CISTPL_FUNCID_MEMORY:
- puts(" Memory");
- break;
- case CISTPL_FUNCID_SERIAL:
- puts(" Serial Port");
- break;
- case CISTPL_FUNCID_PARALLEL:
- puts(" Parallel Port");
- break;
- case CISTPL_FUNCID_FIXED:
- puts(" Fixed Disk");
- break;
- case CISTPL_FUNCID_VIDEO:
- puts(" Video Adapter");
- break;
- 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 char *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 char *known_cards[] = {
- "ARGOSY PnPIDE D5",
- NULL
-};
-
-static int identify(volatile char *p)
-{
- char id_str[MAX_IDENT_CHARS];
- char data;
- char *t;
- char **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_CMD_PCMCIA */
projects / u-boot.git / commitdiff
