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Diffstat (limited to 'cmd/cmd_pcmcia.c')
-rw-r--r-- | cmd/cmd_pcmcia.c | 346 |
1 files changed, 346 insertions, 0 deletions
diff --git a/cmd/cmd_pcmcia.c b/cmd/cmd_pcmcia.c new file mode 100644 index 0000000..682d18f --- /dev/null +++ b/cmd/cmd_pcmcia.c @@ -0,0 +1,346 @@ +/* + * (C) Copyright 2000-2006 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * 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... + */ + +/* #define DEBUG 1 */ + +/* + * PCMCIA support + */ +#include <common.h> +#include <command.h> +#include <config.h> +#include <pcmcia.h> +#include <asm/io.h> + +/* -------------------------------------------------------------------- */ + +#if defined(CONFIG_CMD_PCMCIA) + +extern int pcmcia_on (void); +extern int pcmcia_off (void); + +int do_pinit (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + int rcode = 0; + + if (argc != 2) { + printf ("Usage: pinit {on | off}\n"); + return 1; + } + if (strcmp(argv[1],"on") == 0) { + rcode = pcmcia_on (); + } else if (strcmp(argv[1],"off") == 0) { + rcode = pcmcia_off (); + } else { + printf ("Usage: pinit {on | off}\n"); + return 1; + } + + return rcode; +} + +U_BOOT_CMD( + pinit, 2, 0, do_pinit, + "PCMCIA sub-system", + "on - power on PCMCIA socket\n" + "pinit off - power off PCMCIA socket" +); + +#endif + +/* -------------------------------------------------------------------- */ + +#undef CHECK_IDE_DEVICE + +#if defined(CONFIG_CMD_IDE) && defined(CONFIG_IDE_8xx_PCCARD) +#define CHECK_IDE_DEVICE +#endif + +#if defined(CONFIG_PXA_PCMCIA) +#define CHECK_IDE_DEVICE +#endif + +#ifdef CHECK_IDE_DEVICE + +int ide_devices_found; +static uchar *known_cards[] = { + (uchar *)"ARGOSY PnPIDE D5", + NULL +}; + +#define MAX_TUPEL_SZ 512 +#define MAX_FEATURES 4 + +#define MAX_IDENT_CHARS 64 +#define MAX_IDENT_FIELDS 4 + +#define indent "\t " + +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'); +} + +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 ((char *)id_str); + putc ('\n'); + + for (card=known_cards; *card; ++card) { + debug ("## Compare against \"%s\"\n", *card); + if (strcmp((char *)*card, (char *)id_str) == 0) { /* found! */ + debug ("## CARD FOUND ##\n"); + return (1); + } + } + + return (0); /* don't know */ +} + +int check_ide_device (int slot) +{ + volatile uchar *ident = NULL; + volatile uchar *feature_p[MAX_FEATURES]; + volatile uchar *p, *start, *addr; + int n_features = 0; + uchar func_id = ~0; + uchar code, len; + ushort config_base = 0; + int found = 0; + int i; + + addr = (volatile uchar *)(CONFIG_SYS_PCMCIA_MEM_ADDR + + CONFIG_SYS_PCMCIA_MEM_SIZE * (slot * 4)); + debug ("PCMCIA MEM: %08lX\n", (ulong)addr); + + start = p = (volatile uchar *) addr; + + 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); + } + + ide_devices_found |= (1 << slot); + + /* set I/O area in config reg -> only valid for ARGOSY D5!!! */ + *((uchar *)(addr + config_base)) = 1; +#if 0 + printf("\n## Config_base = %04x ###\n", config_base); + printf("Configuration Option Register: %02x @ %x\n", readb(addr + config_base), addr + config_base); + printf("Card Configuration and Status Register: %02x\n", readb(addr + config_base + 2)); + printf("Pin Replacement Register Register: %02x\n", readb(addr + config_base + 4)); + printf("Socket and Copy Register: %02x\n", readb(addr + config_base + 6)); +#endif + return (0); +} + +#endif /* CHECK_IDE_DEVICE */ |