Following patch reprograms SIL3114 into PCI IDE native mode compatible class code allowing

legacy software to recognize it as IDE and boot from it. I think
this should be the default for two Tyan boards (k8s aka s2882 and s2881).

Rename the directory to sil prefix to match the Linux kernel naming.
(And I think it was a SiliconSystems wish to be named sil ;)

Signed-off-by: Rudolf Marek <r.marek@assembler.cz>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5560 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

src/Kconfig

@@ -100,6 +100,10 @@ source src/devices/Kconfig
 
 endmenu
 
+menu "Generic Drivers"
+source src/drivers/Kconfig
+endmenu
+
 config PCI_BUS_SEGN_BITS
 	int
 	default 0

src/drivers/Kconfig

@@ -0,0 +1,25 @@
+##
+## This file is part of the coreboot project.
+##
+## Copyright (C) 2010 Rudolf Marek <r.marek@assembler.cz>
+##
+## 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; version 2 of the License.
+##
+## 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+##
+
+config DRIVERS_SIL
+	bool "Silicon Image SIL3114"
+	default n
+	help
+	It sets PCI class to IDE compatible native mode, allowing
+	SeaBIOS, FILO etc... to boot from it.

src/drivers/Makefile.inc

@@ -1,2 +1,3 @@
 subdirs-y += generic/debug
 subdirs-y += ati/ragexl
+subdirs-y += sil/3114

src/drivers/sil/3114/Makefile.inc

@@ -0,0 +1 @@
+driver-$(CONFIG_DRIVERS_SIL) += sil_sata.o

src/drivers/sil/3114/sil_sata.c

@@ -0,0 +1,47 @@
+/* Copyright 2003-2004 Tyan Computer
+ *  Yinghai Lu yhlu@tyan.com
+ *
+ * Copyright (C) 2010 Rudolf Marek <r.marek@assembler.cz>
+ */
+
+#include <delay.h>
+#include <stdlib.h>
+#include <string.h>
+#include <arch/io.h>
+
+#include <console/console.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <device/pci_ops.h>
+
+static void si_sata_init(struct device *dev)
+{
+	uint32_t dword;
+	/* enable change device id and class id */
+	dword = pci_read_config32(dev,0x40);
+	dword |= (1<<0);
+	pci_write_config32(dev, 0x40, dword);
+	/* Set IDE Class, Native mode, two drives per channel */
+	dword = 0x01018f00;
+	pci_write_config32(dev, 0x08, dword);
+	/* disable change device id and class id*/
+	dword = pci_read_config32(dev,0x40);
+	dword &= ~(1<<0);
+	pci_write_config32(dev, 0x40, dword);
+	printk(BIOS_INFO, "SIL3114 set to IDE compatible mode\n");
+}
+
+static struct device_operations si_sata_ops  = {
+	.read_resources   = pci_dev_read_resources,
+	.set_resources    = pci_dev_set_resources,
+	.enable_resources = pci_dev_enable_resources,
+	.init             = si_sata_init,
+	.scan_bus         = 0,
+};
+
+static const struct pci_driver si_sata_driver __pci_driver = {
+        .ops    = &si_sata_ops,
+        .vendor = 0x1095,
+        .device = 0x3114,
+};

src/mainboard/tyan/s2881/Kconfig

@@ -13,6 +13,7 @@ config BOARD_TYAN_S2881
 	select HAVE_MP_TABLE
 	select BOARD_ROMSIZE_KB_512
 	select SB_HT_CHAIN_UNITID_OFFSET_ONLY
+	select DRIVERS_SIL
 
 config MAINBOARD_DIR
 	string

src/mainboard/tyan/s2882/Kconfig

@@ -12,6 +12,7 @@ config BOARD_TYAN_S2882
 	select HAVE_MP_TABLE
 	select BOARD_ROMSIZE_KB_512
 	select SB_HT_CHAIN_UNITID_OFFSET_ONLY
+	select DRIVERS_SIL
 
 config MAINBOARD_DIR
 	string