1 files changed, 255 insertions, 0 deletions
diff --git a/src/southbridge/ricoh/rl5c476/rl5c476.c b/src/southbridge/ricoh/rl5c476/rl5c476.c
new file mode 100644
index 0000000000..c6cb55cba3
--- /dev/null
+++ b/src/southbridge/ricoh/rl5c476/rl5c476.c
@@ -0,0 +1,255 @@
+/*
+ * (C) Copyright 2004 Nick Barker <nick.barker9@btinternet.com>
+ *
+ *
+ * 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
+ */
+
+
+
+#include <arch/io.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ops.h>
+#include <device/pci_ids.h>
+#include <device/chip.h>
+#include <console/console.h>
+#include "rl5c476.h"
+#include "chip.h"
+
+static void udelay(int i){
+	for(; i > 0 ; i--)
+		inb(0x80);
+
+}
+
+static void
+dump_south(void)
+{
+	device_t dev0;
+	dev0 = dev_find_device(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C476, 0);
+	dev0 = dev_find_device(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C476, dev0);
+	int i,j;
+	
+	for(i = 0; i < 256; i += 16) {
+		printk_debug("0x%x: ", i);
+		for(j = 0; j < 16; j++) {
+			printk_debug("%02x ", pci_read_config8(dev0, i+j));
+		}
+		printk_debug("\n");
+	}
+	printk_debug("Card32\n");
+	for(i = 0 ; i < 256 ; i+=16){
+		printk_debug("0x%x: ",i);
+		for(j = 0 ; j < 16 ; j++){
+			printk_debug(" %02x",*(unsigned char *)(0x80000000+i+j));
+		}
+		printk_debug("\n");
+	}
+	printk_debug("Card16\n");
+	for(i = 0; i < 256; i += 16) {
+		printk_debug("0x%x: ", i);
+		for(j = 0; j < 16; j++) {
+			printk_debug("%02x ", *(unsigned char *)(0x80000800+ i+j));
+		}
+		printk_debug("\n");
+	}
+	printk_debug("CF Config\n");
+	for(i = 0 ; i < 256 ; i+=16){
+		printk_debug("0x%x: ",i);
+		for(j=0 ; j < 16 ; j++){
+			printk_debug("%02x ",*(unsigned char *)(0x81000200 + i + j));
+		}
+		printk_debug("\n");
+	}
+}
+
+
+static void rl5c476_init(struct southbridge_rl5c476_config *conf)
+{
+	//unsigned char enables;
+	device_t dev;
+	pc16reg_t *pc16;
+	int i;
+
+	printk_debug("rl5c476 init\n");
+	/* cardbus controller function 1 for CF Socket */
+	dev = dev_find_device(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C476, 0);
+
+	if (!dev ){
+		// probably an epia-m rather than mii
+		printk_debug("No rl5c476 found\n");
+		return;
+	}	
+
+	/* setup pci header manually because 'pci_device.c' doesn't know how to handle
+         * pci to cardbus bridges - (header type 2 I think)
+	 */
+
+
+	/* initialize function zero - pcmcia socket so it behaves itself */
+	/* FIXME - statically put control memory at 0xe0000000 for now
+	 * one day the pci_device allocator might do this */
+	pci_write_config32(dev,0x10,0xe0000000);
+	pci_write_config8(dev,0x0d,0x20);
+	pci_write_config8(dev,0x19,0x02);
+	pci_write_config8(dev,0x1a,0x02);
+	pci_write_config8(dev,0x1b,0x20);
+	//pci_write_config8(dev,0x3c,0);
+	pci_write_config8(dev,0x82,0x00a0);
+	pci_write_config16(dev,0x04,0x07);
+
+	
+	/* get second function - i.e. compact flash socket */
+	dev = dev_find_device(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C476, dev);
+
+
+	/* FIXME - control structure statically declared at 0xe0008000 for now */
+	pci_write_config32(dev,0x10,0xe0008000);
+	pci_write_config8(dev,0x0d,0x20);
+	pci_write_config8(dev,0x19,0x03);
+	pci_write_config8(dev,0x1a,0x03);
+	pci_write_config8(dev,0x1b,0x20);
+
+	//pci_write_config8(dev,0x3c,0x0);
+	pci_write_config16(dev,0x3e,0x0780);
+	pci_write_config16(dev,0x82,0x00a0);
+
+	pci_write_config16(dev,0x04,0x07);
+
+
+	/* pick up where 16 bit card control structure is */
+	pc16 = (pc16reg_t *)(0xe0008800);
+
+	/* disable memory and io windows and turn off socket power */
+	pc16->pwctrl = 0;
+
+	/* disable irq lines */
+	pc16->igctrl = 0;
+
+	/* disable memory and I/O windows */
+	pc16->awinen = 0;
+
+	/* reset card, configure for I/O and set IRQ line */
+	pc16->igctrl = 0x69;
+
+
+	// set io window 0 for 1e8 - 1ef
+	pc16->iostl0 = 0xe8;
+	pc16->iosth0 = 1;
+
+	pc16->iospl0 = 0xef;
+	pc16->iosph0 = 1;
+
+	// add io offset of 8 so that CF card will decode 0x1e8 as 0x1f0 i.e. the first byte of
+	// a 16 byte aligned, 16 byte window etc
+	pc16->ioffl0 = 0x8;
+	pc16->ioffh0 = 0;
+
+	// set io window 1 for 3ed - 3ee
+	pc16->iostl1 = 0xed;
+	pc16->iosth1 = 3;
+
+	pc16->iospl1 = 0xee;
+	pc16->iosph1 = 3;
+
+	pc16->ioffl1 = 0x0;
+	pc16->ioffh1 = 0;
+
+
+	// FIXME statically declare CF config window at 0xe1000000
+	pc16->smstl0 = 0;
+	pc16->smsth0 = 0;
+	pc16->smspl0 = 0;
+	pc16->smsph0 = 0x80;
+	pc16->moffl0 = 0;
+	pc16->moffh0 = 0x40;
+	pc16->smpga0 = 0xe1;
+
+	// set I/O width for Auto Data width
+	pc16->ioctrl = 0x22;
+
+
+	// enable I/O window 0 and 1
+	pc16->awinen = 0xc1;
+
+
+	pc16->miscc1 = 1;
+
+	// apply power and enable outputs
+	pc16->pwctrl = 0xb0;
+	
+
+	// delay could be optimised, but this works
+	udelay(100000);
+	
+	pc16->igctrl = 0x69;
+
+	unsigned char *cptr;
+	cptr = (unsigned char *)(0xe1000200);
+	printk_debug("CF Config = %x\n",*cptr);
+
+	// FIX Me 16 bit CF always have first config byte at 0x200 into Config structure,
+        // but CF+ May Not according to spec - should locate through reading tuple data,
+        // but this will do for now !!!
+
+
+	// set CF to decode 16 IO bytes on any 16 byte boundary - rely on the io
+	// windows of the bridge set up above to map those bytes into the 
+	// addresses for ide controller 3 (0x1e8 - 0x1ef and 0x3ed - 0x3ee)
+	*cptr = 0x41;
+
+
+}
+
+static void southbridge_init(struct chip *chip, enum chip_pass pass)
+{
+
+	struct southbridge_rl5c476_config *conf = 
+		(struct southbridge_rl5c476_config *)chip->chip_info;
+
+	switch (pass) {
+	case CONF_PASS_PRE_PCI:
+		//rl5c476_pci_enable(conf);
+		break;
+		
+	case CONF_PASS_POST_PCI:
+		rl5c476_init(conf);
+
+		break;
+
+	case CONF_PASS_PRE_BOOT:
+		//dump_south();
+		break;
+		
+	default:
+		/* nothing yet */
+		break;
+	}
+}
+
+static void enumerate(struct chip *chip)
+{
+	extern struct device_operations default_pci_ops_bus;
+	chip_enumerate(chip);
+	chip->dev->ops = &default_pci_ops_bus;
+}
+
+struct chip_control southbridge_ricoh_rl5c476_control = {
+	.enumerate = enumerate,
+	.enable    = southbridge_init,
+	.name      = "RICOH RL5C476"
+};