AGESA F15 wrapper for Hudson.
Hudson code has been integrated from CIMx to AGESA. This patch is about the wrapper.
Change-Id: I63d951982140b82a3a77a97eb3d55fc75fc0caa3
Signed-off-by: Zheng Bao <zheng.bao@amd.com>
Signed-off-by: zbao <fishbaozi@gmail.com>
Reviewed-on: http://review.coreboot.org/1157
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
diff --git a/src/southbridge/amd/agesa/hudson/lpc.c b/src/southbridge/amd/agesa/hudson/lpc.c
new file mode 100644
index 0000000..4dd6083
--- /dev/null
+++ b/src/southbridge/amd/agesa/hudson/lpc.c
@@ -0,0 +1,148 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2010 Advanced Micro Devices, Inc.
+ *
+ * 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
+ */
+
+#include <console/console.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pnp.h>
+#include <device/pci_ids.h>
+#include <device/pci_ops.h>
+#include <pc80/mc146818rtc.h>
+#include <pc80/isa-dma.h>
+#include <bitops.h>
+#include <arch/io.h>
+#include "hudson.h"
+
+static void lpc_init(device_t dev)
+{
+ u8 byte;
+ u32 dword;
+ device_t sm_dev;
+
+ /* Enable the LPC Controller */
+ sm_dev = dev_find_slot(0, PCI_DEVFN(0x14, 0));
+ dword = pci_read_config32(sm_dev, 0x64);
+ dword |= 1 << 20;
+ pci_write_config32(sm_dev, 0x64, dword);
+
+ /* Initialize isa dma */
+ isa_dma_init();
+
+ /* Enable DMA transaction on the LPC bus */
+ byte = pci_read_config8(dev, 0x40);
+ byte |= (1 << 2);
+ pci_write_config8(dev, 0x40, byte);
+
+ /* Disable the timeout mechanism on LPC */
+ byte = pci_read_config8(dev, 0x48);
+ byte &= ~(1 << 7);
+ pci_write_config8(dev, 0x48, byte);
+
+ /* Disable LPC MSI Capability */
+ byte = pci_read_config8(dev, 0x78);
+ byte &= ~(1 << 1);
+ byte &= ~(1 << 0); /* Keep the old way. i.e., when bus master/DMA cycle is going
+ on on LPC, it holds PCI grant, so no LPC slave cycle can
+ interrupt and visit LPC. */
+ pci_write_config8(dev, 0x78, byte);
+
+ /* bit0: Enable prefetch a cacheline (64 bytes) when Host reads code from SPI rom */
+ /* bit3: Fix SPI_CS# timing issue when running at 66M. TODO:A12. */
+ byte = pci_read_config8(dev, 0xBB);
+ byte |= 1 << 0 | 1 << 3;
+ pci_write_config8(dev, 0xBB, byte);
+}
+
+static void hudson_lpc_read_resources(device_t dev)
+{
+ struct resource *res;
+
+ /* Get the normal pci resources of this device */
+ pci_dev_read_resources(dev); /* We got one for APIC, or one more for TRAP */
+
+ pci_get_resource(dev, 0xA0); /* SPI ROM base address */
+
+ /* Add an extra subtractive resource for both memory and I/O. */
+ res = new_resource(dev, IOINDEX_SUBTRACTIVE(0, 0));
+ res->base = 0;
+ res->size = 0x1000;
+ res->flags = IORESOURCE_IO | IORESOURCE_SUBTRACTIVE |
+ IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
+
+ res = new_resource(dev, IOINDEX_SUBTRACTIVE(1, 0));
+ res->base = 0xff800000;
+ res->size = 0x00800000; /* 8 MB for flash */
+ res->flags = IORESOURCE_MEM | IORESOURCE_SUBTRACTIVE |
+ IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
+
+ //res = new_resource(dev, 3); /* IOAPIC */
+ //res->base = 0xfec00000;
+ //res->size = 0x00001000;
+ //res->flags = IORESOURCE_MEM | IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
+
+ compact_resources(dev);
+}
+
+static void hudson_lpc_set_resources(struct device *dev)
+{
+ struct resource *res;
+
+ pci_dev_set_resources(dev);
+
+ /* Specical case. SPI Base Address. The SpiRomEnable should be set. */
+ res = find_resource(dev, 0xA0);
+ pci_write_config32(dev, 0xA0, res->base | 1 << 1);
+
+}
+
+/**
+ * @brief Enable resources for children devices
+ *
+ * @param dev the device whos children's resources are to be enabled
+ *
+ */
+static void hudson_lpc_enable_childrens_resources(device_t dev)
+{
+ printk(BIOS_DEBUG, "hudson_lpc_enable_childrens_resources\n");
+
+}
+
+static void hudson_lpc_enable_resources(device_t dev)
+{
+ pci_dev_enable_resources(dev);
+ hudson_lpc_enable_childrens_resources(dev);
+}
+
+static struct pci_operations lops_pci = {
+ .set_subsystem = pci_dev_set_subsystem,
+};
+
+static struct device_operations lpc_ops = {
+ .read_resources = hudson_lpc_read_resources,
+ .set_resources = hudson_lpc_set_resources,
+ .enable_resources = hudson_lpc_enable_resources,
+ .init = lpc_init,
+ .scan_bus = scan_static_bus,
+ .ops_pci = &lops_pci,
+};
+static const struct pci_driver lpc_driver __pci_driver = {
+ .ops = &lpc_ops,
+ .vendor = PCI_VENDOR_ID_AMD,
+ .device = PCI_DEVICE_ID_ATI_SB900_LPC,
+};