Commit 9d407995 authored by Wolfgang Denk's avatar Wolfgang Denk

Major PCMCIA Cleanup to make code better readable and maintainable.

Notes:
- Board-dependend code for RPXLITE and RPXCLASSIC-based boards
  placed to the drivers/rpx_pmcia.c file to avoid duplication.
  Same for TQM8xx-based boards (drivers/tqm8xx_pmcia.c).
- drivers/i82365.c has been split into two parts located at
  board/atc/ti113x.c and board/cpc45/pd67290.c (ATC and CPC45 are
  the only boards using CONFIG_82365).
- Changes were tested for clean build and *very* *few* boards.
parent a874c8c6
......@@ -2,6 +2,16 @@
Changes since U-Boot 1.1.4:
======================================================================
* Major PCMCIA Cleanup to make code better readable and maintainable.
Notes:
- Board-dependend code for RPXLITE and RPXCLASSIC-based boards
placed to the drivers/rpx_pmcia.c file to avoid duplication.
Same for TQM8xx-based boards (drivers/tqm8xx_pmcia.c).
- drivers/i82365.c has been split into two parts located at
board/atc/ti113x.c and board/cpc45/pd67290.c (ATC and CPC45 are
the only boards using CONFIG_82365).
- Changes were tested for clean build and *very* *few* boards.
* Fix timer problems on AMCC yucca board.
Set Timer Clock Select to use CPU clock as a timer input source.
......
......@@ -25,7 +25,7 @@ include $(TOPDIR)/config.mk
LIB = lib$(BOARD).a
OBJS = $(BOARD).o flash.o
OBJS = $(BOARD).o flash.o ti113x.o
$(LIB): .depend $(OBJS)
$(AR) crv $@ $(OBJS)
......
/*
* (C) Copyright 2003-2005
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* 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:
*
* i82365.c 1.352 - Linux driver for Intel 82365 and compatible
* PC Card controllers, and Yenta-compatible PCI-to-CardBus controllers.
* (C) 1999 David A. Hinds <dahinds@users.sourceforge.net>
*/
#include <common.h>
#ifdef CONFIG_I82365
#include <command.h>
#include <pci.h>
#include <pcmcia.h>
#include <asm/io.h>
#include <pcmcia/ss.h>
#include <pcmcia/i82365.h>
#include <pcmcia/yenta.h>
#include <pcmcia/ti113x.h>
static struct pci_device_id supported[] = {
{PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1510},
{0, 0}
};
#define CYCLE_TIME 120
#ifdef DEBUG
static void i82365_dump_regions (pci_dev_t dev);
#endif
typedef struct socket_info_t {
pci_dev_t dev;
u_short bcr;
u_char pci_lat, cb_lat, sub_bus, cache;
u_int cb_phys;
socket_cap_t cap;
u_short type;
u_int flags;
ti113x_state_t state;
} socket_info_t;
static socket_info_t socket;
static socket_state_t state;
static struct pccard_mem_map mem;
static struct pccard_io_map io;
/*====================================================================*/
/* Some PCI shortcuts */
static int pci_readb (socket_info_t * s, int r, u_char * v)
{
return pci_read_config_byte (s->dev, r, v);
}
static int pci_writeb (socket_info_t * s, int r, u_char v)
{
return pci_write_config_byte (s->dev, r, v);
}
static int pci_readw (socket_info_t * s, int r, u_short * v)
{
return pci_read_config_word (s->dev, r, v);
}
static int pci_writew (socket_info_t * s, int r, u_short v)
{
return pci_write_config_word (s->dev, r, v);
}
static int pci_readl (socket_info_t * s, int r, u_int * v)
{
return pci_read_config_dword (s->dev, r, v);
}
static int pci_writel (socket_info_t * s, int r, u_int v)
{
return pci_write_config_dword (s->dev, r, v);
}
/*====================================================================*/
#define cb_readb(s, r) readb((s)->cb_phys + (r))
#define cb_readl(s, r) readl((s)->cb_phys + (r))
#define cb_writeb(s, r, v) writeb(v, (s)->cb_phys + (r))
#define cb_writel(s, r, v) writel(v, (s)->cb_phys + (r))
static u_char i365_get (socket_info_t * s, u_short reg)
{
return cb_readb (s, 0x0800 + reg);
}
static void i365_set (socket_info_t * s, u_short reg, u_char data)
{
cb_writeb (s, 0x0800 + reg, data);
}
static void i365_bset (socket_info_t * s, u_short reg, u_char mask)
{
i365_set (s, reg, i365_get (s, reg) | mask);
}
static void i365_bclr (socket_info_t * s, u_short reg, u_char mask)
{
i365_set (s, reg, i365_get (s, reg) & ~mask);
}
#if 0 /* not used */
static void i365_bflip (socket_info_t * s, u_short reg, u_char mask, int b)
{
u_char d = i365_get (s, reg);
i365_set (s, reg, (b) ? (d | mask) : (d & ~mask));
}
static u_short i365_get_pair (socket_info_t * s, u_short reg)
{
return (i365_get (s, reg) + (i365_get (s, reg + 1) << 8));
}
#endif /* not used */
static void i365_set_pair (socket_info_t * s, u_short reg, u_short data)
{
i365_set (s, reg, data & 0xff);
i365_set (s, reg + 1, data >> 8);
}
/*======================================================================
Code to save and restore global state information for TI 1130 and
TI 1131 controllers, and to set and report global configuration
options.
======================================================================*/
static void ti113x_get_state (socket_info_t * s)
{
ti113x_state_t *p = &s->state;
pci_readl (s, TI113X_SYSTEM_CONTROL, &p->sysctl);
pci_readb (s, TI113X_CARD_CONTROL, &p->cardctl);
pci_readb (s, TI113X_DEVICE_CONTROL, &p->devctl);
pci_readb (s, TI1250_DIAGNOSTIC, &p->diag);
pci_readl (s, TI12XX_IRQMUX, &p->irqmux);
}
static void ti113x_set_state (socket_info_t * s)
{
ti113x_state_t *p = &s->state;
pci_writel (s, TI113X_SYSTEM_CONTROL, p->sysctl);
pci_writeb (s, TI113X_CARD_CONTROL, p->cardctl);
pci_writeb (s, TI113X_DEVICE_CONTROL, p->devctl);
pci_writeb (s, TI1250_MULTIMEDIA_CTL, 0);
pci_writeb (s, TI1250_DIAGNOSTIC, p->diag);
pci_writel (s, TI12XX_IRQMUX, p->irqmux);
i365_set_pair (s, TI113X_IO_OFFSET (0), 0);
i365_set_pair (s, TI113X_IO_OFFSET (1), 0);
}
static u_int ti113x_set_opts (socket_info_t * s)
{
ti113x_state_t *p = &s->state;
u_int mask = 0xffff;
p->cardctl &= ~TI113X_CCR_ZVENABLE;
p->cardctl |= TI113X_CCR_SPKROUTEN;
return mask;
}
/*======================================================================
Routines to handle common CardBus options
======================================================================*/
/* Default settings for PCI command configuration register */
#define CMD_DFLT (PCI_COMMAND_IO|PCI_COMMAND_MEMORY| \
PCI_COMMAND_MASTER|PCI_COMMAND_WAIT)
static void cb_get_state (socket_info_t * s)
{
pci_readb (s, PCI_CACHE_LINE_SIZE, &s->cache);
pci_readb (s, PCI_LATENCY_TIMER, &s->pci_lat);
pci_readb (s, CB_LATENCY_TIMER, &s->cb_lat);
pci_readb (s, CB_CARDBUS_BUS, &s->cap.cardbus);
pci_readb (s, CB_SUBORD_BUS, &s->sub_bus);
pci_readw (s, CB_BRIDGE_CONTROL, &s->bcr);
}
static void cb_set_state (socket_info_t * s)
{
pci_writel (s, CB_LEGACY_MODE_BASE, 0);
pci_writel (s, PCI_BASE_ADDRESS_0, s->cb_phys);
pci_writew (s, PCI_COMMAND, CMD_DFLT);
pci_writeb (s, PCI_CACHE_LINE_SIZE, s->cache);
pci_writeb (s, PCI_LATENCY_TIMER, s->pci_lat);
pci_writeb (s, CB_LATENCY_TIMER, s->cb_lat);
pci_writeb (s, CB_CARDBUS_BUS, s->cap.cardbus);
pci_writeb (s, CB_SUBORD_BUS, s->sub_bus);
pci_writew (s, CB_BRIDGE_CONTROL, s->bcr);
}
static void cb_set_opts (socket_info_t * s)
{
if (s->cache == 0)
s->cache = 8;
if (s->pci_lat == 0)
s->pci_lat = 0xa8;
if (s->cb_lat == 0)
s->cb_lat = 0xb0;
}
/*======================================================================
Power control for Cardbus controllers: used both for 16-bit and
Cardbus cards.
======================================================================*/
static int cb_set_power (socket_info_t * s, socket_state_t * state)
{
u_int reg = 0;
/* restart card voltage detection if it seems appropriate */
if ((state->Vcc == 0) && (state->Vpp == 0) &&
!(cb_readl (s, CB_SOCKET_STATE) & CB_SS_VSENSE))
cb_writel (s, CB_SOCKET_FORCE, CB_SF_CVSTEST);
switch (state->Vcc) {
case 0:
reg = 0;
break;
case 33:
reg = CB_SC_VCC_3V;
break;
case 50:
reg = CB_SC_VCC_5V;
break;
default:
return -1;
}
switch (state->Vpp) {
case 0:
break;
case 33:
reg |= CB_SC_VPP_3V;
break;
case 50:
reg |= CB_SC_VPP_5V;
break;
case 120:
reg |= CB_SC_VPP_12V;
break;
default:
return -1;
}
if (reg != cb_readl (s, CB_SOCKET_CONTROL))
cb_writel (s, CB_SOCKET_CONTROL, reg);
return 0;
}
/*======================================================================
Generic routines to get and set controller options
======================================================================*/
static void get_bridge_state (socket_info_t * s)
{
ti113x_get_state (s);
cb_get_state (s);
}
static void set_bridge_state (socket_info_t * s)
{
cb_set_state (s);
i365_set (s, I365_GBLCTL, 0x00);
i365_set (s, I365_GENCTL, 0x00);
ti113x_set_state (s);
}
static void set_bridge_opts (socket_info_t * s)
{
ti113x_set_opts (s);
cb_set_opts (s);
}
/*====================================================================*/
#define PD67_EXT_INDEX 0x2e /* Extension index */
#define PD67_EXT_DATA 0x2f /* Extension data */
#define PD67_EXD_VS1(s) (0x01 << ((s)<<1))
#define pd67_ext_get(s, r) \
(i365_set(s, PD67_EXT_INDEX, r), i365_get(s, PD67_EXT_DATA))
static int i365_get_status (socket_info_t * s, u_int * value)
{
u_int status;
status = i365_get (s, I365_IDENT);
status = i365_get (s, I365_STATUS);
*value = ((status & I365_CS_DETECT) == I365_CS_DETECT) ? SS_DETECT : 0;
if (i365_get (s, I365_INTCTL) & I365_PC_IOCARD) {
*value |= (status & I365_CS_STSCHG) ? 0 : SS_STSCHG;
} else {
*value |= (status & I365_CS_BVD1) ? 0 : SS_BATDEAD;
*value |= (status & I365_CS_BVD2) ? 0 : SS_BATWARN;
}
*value |= (status & I365_CS_WRPROT) ? SS_WRPROT : 0;
*value |= (status & I365_CS_READY) ? SS_READY : 0;
*value |= (status & I365_CS_POWERON) ? SS_POWERON : 0;
status = cb_readl (s, CB_SOCKET_STATE);
*value |= (status & CB_SS_32BIT) ? SS_CARDBUS : 0;
*value |= (status & CB_SS_3VCARD) ? SS_3VCARD : 0;
*value |= (status & CB_SS_XVCARD) ? SS_XVCARD : 0;
*value |= (status & CB_SS_VSENSE) ? 0 : SS_PENDING;
/* For now, ignore cards with unsupported voltage keys */
if (*value & SS_XVCARD)
*value &= ~(SS_DETECT | SS_3VCARD | SS_XVCARD);
return 0;
} /* i365_get_status */
static int i365_set_socket (socket_info_t * s, socket_state_t * state)
{
u_char reg;
set_bridge_state (s);
/* IO card, RESET flag */
reg = 0;
reg |= (state->flags & SS_RESET) ? 0 : I365_PC_RESET;
reg |= (state->flags & SS_IOCARD) ? I365_PC_IOCARD : 0;
i365_set (s, I365_INTCTL, reg);
reg = I365_PWR_NORESET;
if (state->flags & SS_PWR_AUTO)
reg |= I365_PWR_AUTO;
if (state->flags & SS_OUTPUT_ENA)
reg |= I365_PWR_OUT;
cb_set_power (s, state);
reg |= i365_get (s, I365_POWER) & (I365_VCC_MASK | I365_VPP1_MASK);
if (reg != i365_get (s, I365_POWER))
i365_set (s, I365_POWER, reg);
return 0;
} /* i365_set_socket */
/*====================================================================*/
static int i365_set_mem_map (socket_info_t * s, struct pccard_mem_map *mem)
{
u_short base, i;
u_char map;
debug ("i82365: SetMemMap(%d, %#2.2x, %d ns, %#5.5lx-%#5.5lx, %#5.5x)\n",
mem->map, mem->flags, mem->speed,
mem->sys_start, mem->sys_stop, mem->card_start);
map = mem->map;
if ((map > 4) ||
(mem->card_start > 0x3ffffff) ||
(mem->sys_start > mem->sys_stop) ||
(mem->speed > 1000)) {
return -1;
}
/* Turn off the window before changing anything */
if (i365_get (s, I365_ADDRWIN) & I365_ENA_MEM (map))
i365_bclr (s, I365_ADDRWIN, I365_ENA_MEM (map));
/* Take care of high byte, for PCI controllers */
i365_set (s, CB_MEM_PAGE (map), mem->sys_start >> 24);
base = I365_MEM (map);
i = (mem->sys_start >> 12) & 0x0fff;
if (mem->flags & MAP_16BIT)
i |= I365_MEM_16BIT;
if (mem->flags & MAP_0WS)
i |= I365_MEM_0WS;
i365_set_pair (s, base + I365_W_START, i);
i = (mem->sys_stop >> 12) & 0x0fff;
switch (mem->speed / CYCLE_TIME) {
case 0:
break;
case 1:
i |= I365_MEM_WS0;
break;
case 2:
i |= I365_MEM_WS1;
break;
default:
i |= I365_MEM_WS1 | I365_MEM_WS0;
break;
}
i365_set_pair (s, base + I365_W_STOP, i);
i = ((mem->card_start - mem->sys_start) >> 12) & 0x3fff;
if (mem->flags & MAP_WRPROT)
i |= I365_MEM_WRPROT;
if (mem->flags & MAP_ATTRIB)
i |= I365_MEM_REG;
i365_set_pair (s, base + I365_W_OFF, i);
/* Turn on the window if necessary */
if (mem->flags & MAP_ACTIVE)
i365_bset (s, I365_ADDRWIN, I365_ENA_MEM (map));
return 0;
} /* i365_set_mem_map */
static int i365_set_io_map (socket_info_t * s, struct pccard_io_map *io)
{
u_char map, ioctl;
map = io->map;
/* comment out: comparison is always false due to limited range of data type */
if ((map > 1) || /* (io->start > 0xffff) || (io->stop > 0xffff) || */
(io->stop < io->start))
return -1;
/* Turn off the window before changing anything */
if (i365_get (s, I365_ADDRWIN) & I365_ENA_IO (map))
i365_bclr (s, I365_ADDRWIN, I365_ENA_IO (map));
i365_set_pair (s, I365_IO (map) + I365_W_START, io->start);
i365_set_pair (s, I365_IO (map) + I365_W_STOP, io->stop);
ioctl = i365_get (s, I365_IOCTL) & ~I365_IOCTL_MASK (map);
if (io->speed)
ioctl |= I365_IOCTL_WAIT (map);
if (io->flags & MAP_0WS)
ioctl |= I365_IOCTL_0WS (map);
if (io->flags & MAP_16BIT)
ioctl |= I365_IOCTL_16BIT (map);
if (io->flags & MAP_AUTOSZ)
ioctl |= I365_IOCTL_IOCS16 (map);
i365_set (s, I365_IOCTL, ioctl);
/* Turn on the window if necessary */
if (io->flags & MAP_ACTIVE)
i365_bset (s, I365_ADDRWIN, I365_ENA_IO (map));
return 0;
} /* i365_set_io_map */
/*====================================================================*/
int i82365_init (void)
{
u_int val;
int i;
if ((socket.dev = pci_find_devices (supported, 0)) < 0) {
/* Controller not found */
return 1;
}
debug ("i82365 Device Found!\n");
pci_read_config_dword (socket.dev, PCI_BASE_ADDRESS_0, &socket.cb_phys);
socket.cb_phys &= ~0xf;
get_bridge_state (&socket);
set_bridge_opts (&socket);
i = i365_get_status (&socket, &val);
if (val & SS_DETECT) {
if (val & SS_3VCARD) {
state.Vcc = state.Vpp = 33;
puts (" 3.3V card found: ");
} else if (!(val & SS_XVCARD)) {
state.Vcc = state.Vpp = 50;
puts (" 5.0V card found: ");
} else {
puts ("i82365: unsupported voltage key\n");
state.Vcc = state.Vpp = 0;
}
} else {
/* No card inserted */
puts ("No card\n");
return 1;
}
state.flags = SS_IOCARD | SS_OUTPUT_ENA;
state.csc_mask = 0;
state.io_irq = 0;
i365_set_socket (&socket, &state);
for (i = 500; i; i--) {
if ((i365_get (&socket, I365_STATUS) & I365_CS_READY))
break;
udelay (1000);
}
if (i == 0) {
/* PC Card not ready for data transfer */
puts ("i82365 PC Card not ready for data transfer\n");
return 1;
}
debug (" PC Card ready for data transfer: ");
mem.map = 0;
mem.flags = MAP_ATTRIB | MAP_ACTIVE;
mem.speed = 300;
mem.sys_start = CFG_PCMCIA_MEM_ADDR;
mem.sys_stop = CFG_PCMCIA_MEM_ADDR + CFG_PCMCIA_MEM_SIZE - 1;
mem.card_start = 0;
i365_set_mem_map (&socket, &mem);
io.map = 0;
io.flags = MAP_AUTOSZ | MAP_ACTIVE;
io.speed = 0;
io.start = 0x0100;
io.stop = 0x010F;
i365_set_io_map (&socket, &io);
#ifdef DEBUG
i82365_dump_regions (socket.dev);
#endif
return 0;
}
void i82365_exit (void)
{
io.map = 0;
io.flags = 0;
io.speed = 0;
io.start = 0;
io.stop = 0x1;
i365_set_io_map (&socket, &io);
mem.map = 0;
mem.flags = 0;
mem.speed = 0;
mem.sys_start = 0;
mem.sys_stop = 0x1000;
mem.card_start = 0;
i365_set_mem_map (&socket, &mem);
socket.state.sysctl &= 0xFFFF00FF;
state.Vcc = state.Vpp = 0;
i365_set_socket (&socket, &state);
}
int pcmcia_on (void)
{
u_int rc;
debug ("Enable PCMCIA " PCMCIA_SLOT_MSG "\n");
rc = i82365_init();
if (rc)
goto exit;
rc = check_ide_device(0);
if (rc == 0)
goto exit;
i82365_exit();