Add support for CompactFlash on ATC board

(includes support for Intel 82365 and compatible PC Card controllers,
and Yenta-compatible PCI-to-CardBus controllers)

1 files changed, 590 insertions, 0 deletions

diff --git a/drivers/i82365.c b/drivers/i82365.c
new file mode 100644
index 00000000000..81736b91525
--- /dev/null
+++ b/drivers/i82365.c
@@ -0,0 +1,590 @@
+/*
+ * (C) Copyright 2003
+ * 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 <cmd_pcmcia.h>
+#include <asm/io.h>
+
+#include <pcmcia/ss.h>
+#include <pcmcia/i82365.h>
+#include <pcmcia/ti113x.h>
+#include <pcmcia/yenta.h>
+
+/* #define DEBUG */
+
+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;
+    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);
+}
+
+/*====================================================================*/
+
+static int i365_get_status (socket_info_t * s, u_int * value)
+{
+	u_int status;
+
+	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;
+
+	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;
+	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;
+	}
+
+	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);
+
+	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 {
+			printf ("i82365: unsupported voltage key\n");
+			state.Vcc = state.Vpp = 0;
+		}
+	} else {
+		/* No card inserted */
+		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 */
+		return 1;
+	}
+
+	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);
+}
+
+/*======================================================================
+
+    Debug stuff
+    
+======================================================================*/
+
+#ifdef DEBUG
+static void i82365_dump_regions (pci_dev_t dev)
+{
+	u_int tmp[2];
+	u_int *mem = (void *) sock.cb_phys;
+	u_char *cis = (void *) CFG_PCMCIA_MEM_ADDR;
+	u_char *ide = (void *) (CFG_ATA_BASE_ADDR + CFG_ATA_REG_OFFSET);
+
+	pci_read_config_dword (dev, 0x00, tmp + 0);
+	pci_read_config_dword (dev, 0x80, tmp + 1);
+
+	printf ("PCI CONF: %08X ... %08X\n", tmp[0], tmp[1]);
+	printf ("PCI MEM:  ... %08X ... %08X\n", mem[0x8 / 4], mem[0x800 / 4]);
+	printf ("CIS:      ...%c%c%c%c%c%c%c%c...\n",
+		cis[0x38], cis[0x3a], cis[0x3c], cis[0x3e],
+		cis[0x40], cis[0x42], cis[0x44], cis[0x48]);
+	printf ("CIS CONF: %02X %02X %02X ...\n",
+		cis[0x200], cis[0x202], cis[0x204]);
+	printf ("IDE:      %02X %02X %02X %02X %02X %02X %02X %02X\n",
+		ide[0], ide[1], ide[2], ide[3],
+		ide[4], ide[5], ide[6], ide[7]);
+}
+#endif	/* DEBUG */
+
+#endif /* CONFIG_I82365 */