summaryrefslogtreecommitdiff
path: root/drivers/pcmcia/ti_pci1410a.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/pcmcia/ti_pci1410a.c')
-rw-r--r--drivers/pcmcia/ti_pci1410a.c665
1 files changed, 665 insertions, 0 deletions
diff --git a/drivers/pcmcia/ti_pci1410a.c b/drivers/pcmcia/ti_pci1410a.c
new file mode 100644
index 0000000..208ca50
--- /dev/null
+++ b/drivers/pcmcia/ti_pci1410a.c
@@ -0,0 +1,665 @@
+/*
+ * (C) Copyright 2000-2002
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ ********************************************************************
+ *
+ * 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) && defined(CONFIG_IDE_TI_CARDBUS)
+
+int pcmcia_on(int ide_base_bus);
+
+static int pcmcia_off(void);
+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 uchar *p);
+static int identify(volatile uchar *p);
+static int check_ide_device(int slot, int ide_base_bus);
+
+
+/* ------------------------------------------------------------------------- */
+
+
+const char *indent = "\t ";
+
+/* ------------------------------------------------------------------------- */
+
+
+int do_pinit(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+#ifndef CFG_FIRST_PCMCIA_BUS
+# define CFG_FIRST_PCMCIA_BUS 0
+#endif
+
+ int rcode = 0;
+
+ if (argc != 2) {
+ printf ("Usage: pinit {on | off}\n");
+ return 1;
+ }
+ if (strcmp(argv[1],"on") == 0) {
+ rcode = pcmcia_on(CFG_FIRST_PCMCIA_BUS);
+ } else if (strcmp(argv[1],"off") == 0) {
+ rcode = pcmcia_off();
+ } else {
+ printf ("Usage: pinit {on | off}\n");
+ return 1;
+ }
+
+ return rcode;
+}
+
+/* ------------------------------------------------------------------------- */
+
+
+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 = CFG_PCMCIA_CIS_WIN;
+ cis_len = CFG_PCMCIA_CIS_WIN_SIZE;
+
+ io_base = CFG_PCMCIA_IO_WIN;
+ io_len = CFG_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;
+}
+
+/* ------------------------------------------------------------------------- */
+
+
+static 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;
+}
+
+
+/* ------------------------------------------------------------------------- */
+
+
+#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 uchar *ident = NULL;
+ volatile uchar *feature_p[MAX_FEATURES];
+ volatile uchar *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 uchar *) 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 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 */
generated by cgit v1.1 at 2024-11-16 03:27:14 +0000