This does the following:

cd coreboot/src/southbridge
svn mv i82801ca i82801cx
svn mv i82801dbm i82801dx
svn mv i82801er i82801ex
svn copy i82801xx i82801bx
svn mv i82801xx i82801ax

Plus, fixing up the filenames in these directories and the romstage.c and
Kconfig files of the mainboards using those drivers.
Plus, switching the thomson ip1000 and rca rm4100 to the i82801dx driver.

There's a lot more to be done, like 
- adding device IDs for the ICH3 and newer drivers that have been kept in
  i82801xx so far
- drop the additional parts support from the ax and bx drivers.


Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Joseph Smith <joe@settoplinux.org>




git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5167 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

1 files changed, 416 insertions, 0 deletions

diff --git a/src/southbridge/intel/i82801ax/i82801ax_lpc.c b/src/southbridge/intel/i82801ax/i82801ax_lpc.c
new file mode 100644
index 0000000000..590f057ef7
--- /dev/null
+++ b/src/southbridge/intel/i82801ax/i82801ax_lpc.c
@@ -0,0 +1,416 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2003 Linux Networx
+ * Copyright (C) 2003 SuSE Linux AG
+ * Copyright (C) 2005 Tyan Computer
+ * (Written by Yinghai Lu <yinghailu@gmail.com> for Tyan Computer)
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+/* From 82801DBM, needs to be fixed to support everything the 82801ER does. */
+
+#include <console/console.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <pc80/mc146818rtc.h>
+#include <pc80/isa-dma.h>
+#include <arch/io.h>
+#include "i82801ax.h"
+
+#define GPIO_BASE_ADDR	0x00000500 /* GPIO Base Address Register */
+
+#define NMI_OFF 0
+
+typedef struct southbridge_intel_i82801ax_config config_t;
+
+/* PIRQ[n]_ROUT[3:0] - PIRQ Routing Control
+ * 0x00 - 0000 = Reserved
+ * 0x01 - 0001 = Reserved
+ * 0x02 - 0010 = Reserved
+ * 0x03 - 0011 = IRQ3
+ * 0x04 - 0100 = IRQ4
+ * 0x05 - 0101 = IRQ5
+ * 0x06 - 0110 = IRQ6
+ * 0x07 - 0111 = IRQ7
+ * 0x08 - 1000 = Reserved
+ * 0x09 - 1001 = IRQ9
+ * 0x0A - 1010 = IRQ10
+ * 0x0B - 1011 = IRQ11
+ * 0x0C - 1100 = IRQ12
+ * 0x0D - 1101 = Reserved
+ * 0x0E - 1110 = IRQ14
+ * 0x0F - 1111 = IRQ15
+ * PIRQ[n]_ROUT[7] - PIRQ Routing Control
+ * 0x80 - The PIRQ is not routed.
+ */
+
+#define PIRQA 0x03
+#define PIRQB 0x04
+#define PIRQC 0x05
+#define PIRQD 0x06
+#define PIRQE 0x07
+#define PIRQF 0x09
+#define PIRQG 0x0A
+#define PIRQH 0x0B
+
+/* 
+ * Use 0x0ef8 for a bitmap to cover all these IRQ's. 
+ * Use the defined IRQ values above or set mainboard
+ * specific IRQ values in your mainboards Config.lb.
+*/
+
+void i82801ax_enable_apic(struct device *dev)
+{
+	uint32_t reg32;
+	volatile uint32_t *ioapic_index = (volatile uint32_t *)0xfec00000;
+	volatile uint32_t *ioapic_data = (volatile uint32_t *)0xfec00010;
+
+	/* Set ACPI base address (I/O space). */
+	pci_write_config32(dev, PMBASE, (PMBASE_ADDR | 1));
+
+	/* Enable ACPI I/O and power management. */
+	pci_write_config8(dev, ACPI_CNTL, 0x10);
+
+	reg32 = pci_read_config32(dev, GEN_CNTL);
+	reg32 |= (3 << 7);	/* Enable IOAPIC */
+	reg32 |= (1 << 13);	/* Coprocessor error enable */
+	reg32 |= (1 << 1);	/* Delayed transaction enable */
+	reg32 |= (1 << 2);	/* DMA collection buffer enable */
+	pci_write_config32(dev, GEN_CNTL, reg32);
+	printk_debug("IOAPIC Southbridge enabled %x\n", reg32);
+
+	*ioapic_index = 0;
+	*ioapic_data = (1 << 25);
+
+	*ioapic_index = 0;
+	reg32 = *ioapic_data;
+	printk_debug("Southbridge APIC ID = %x\n", reg32);
+	if (reg32 != (1 << 25))
+		die("APIC Error\n");
+
+	/* TODO: From i82801ca, needed/useful on other ICH? */
+	*ioapic_index = 3; /* Select Boot Configuration register. */
+	*ioapic_data = 1; /* Use Processor System Bus to deliver interrupts. */
+}
+
+void i82801ax_enable_serial_irqs(struct device *dev)
+{
+	/* Set packet length and toggle silent mode bit. */
+	pci_write_config8(dev, SERIRQ_CNTL,
+			  (1 << 7) | (1 << 6) | ((21 - 17) << 2) | (0 << 0));
+	pci_write_config8(dev, SERIRQ_CNTL,
+			  (1 << 7) | (0 << 6) | ((21 - 17) << 2) | (0 << 0));
+	/* TODO: Explain/#define the real meaning of these magic numbers. */
+}
+
+static void i82801ax_pirq_init(device_t dev, uint16_t ich_model)
+{
+	/* Get the chip configuration */
+	config_t *config = dev->chip_info;
+
+	if (config->pirqa_routing) {
+		pci_write_config8(dev, PIRQA_ROUT, config->pirqa_routing);
+	} else {
+		pci_write_config8(dev, PIRQA_ROUT, PIRQA);
+	}
+
+	if (config->pirqb_routing) {
+		pci_write_config8(dev, PIRQB_ROUT, config->pirqb_routing);
+	} else {
+		pci_write_config8(dev, PIRQB_ROUT, PIRQB);
+	}
+
+	if (config->pirqc_routing) {
+		pci_write_config8(dev, PIRQC_ROUT, config->pirqc_routing);
+	} else {
+		pci_write_config8(dev, PIRQC_ROUT, PIRQC);
+	}
+
+	if (config->pirqd_routing) {
+		pci_write_config8(dev, PIRQD_ROUT, config->pirqd_routing);
+	} else {
+		pci_write_config8(dev, PIRQD_ROUT, PIRQD);
+	}
+
+	/* Route PIRQE - PIRQH (for ICH2-ICH9). */
+	if (ich_model >= 0x2440) {
+
+		if (config->pirqe_routing) {
+			pci_write_config8(dev, PIRQE_ROUT, config->pirqe_routing);
+		} else {
+			pci_write_config8(dev, PIRQE_ROUT, PIRQE);
+		}
+
+		if (config->pirqf_routing) {
+			pci_write_config8(dev, PIRQF_ROUT, config->pirqf_routing);
+		} else {
+			pci_write_config8(dev, PIRQF_ROUT, PIRQF);
+		}
+
+		if (config->pirqg_routing) {
+			pci_write_config8(dev, PIRQG_ROUT, config->pirqg_routing);
+		} else {
+			pci_write_config8(dev, PIRQG_ROUT, PIRQG);
+		}
+
+		if (config->pirqh_routing) {
+			pci_write_config8(dev, PIRQH_ROUT, config->pirqh_routing);
+		} else {
+			pci_write_config8(dev, PIRQH_ROUT, PIRQH);
+		}
+	}
+}
+
+static void i82801ax_power_options(device_t dev)
+{
+	uint8_t byte;
+	int pwr_on = -1;
+	int nmi_option;
+
+	/* power after power fail */
+	/* FIXME this doesn't work! */
+	/* Which state do we want to goto after g3 (power restored)?
+	 * 0 == S0 Full On
+	 * 1 == S5 Soft Off
+	 */
+	pci_write_config8(dev, GEN_PMCON_3, pwr_on ? 0 : 1);
+	printk_info("Set power %s if power fails\n", pwr_on ? "on" : "off");
+
+	/* Set up NMI on errors. */
+	byte = inb(0x61);
+	byte &= ~(1 << 3);	/* IOCHK# NMI Enable */
+	byte &= ~(1 << 2);	/* PCI SERR# Enable */
+	outb(byte, 0x61);
+	byte = inb(0x70);
+
+	nmi_option = NMI_OFF;
+	get_option(&nmi_option, "nmi");
+	if (nmi_option) {
+		byte &= ~(1 << 7);	/* Set NMI. */
+		outb(byte, 0x70);
+	}
+}
+
+static void gpio_init(device_t dev, uint16_t ich_model)
+{
+	/* Set the value for GPIO base address register and enable GPIO.
+	 * Note: ICH-ICH5 registers differ from ICH6-ICH9.
+	 */
+	if (ich_model <= 0x24D0) {
+		pci_write_config32(dev, GPIO_BASE_ICH0_5, (GPIO_BASE_ADDR | 1));
+		pci_write_config8(dev, GPIO_CNTL_ICH0_5, 0x10);
+	} else if (ich_model >= 0x2640) {
+		pci_write_config32(dev, GPIO_BASE_ICH6_9, (GPIO_BASE_ADDR | 1));
+		pci_write_config8(dev, GPIO_CNTL_ICH6_9, 0x10);
+	}
+}
+
+void i82801ax_rtc_init(struct device *dev)
+{
+	uint8_t reg8;
+	uint32_t reg32;
+	int rtc_failed;
+
+	reg8 = pci_read_config8(dev, GEN_PMCON_3);
+	rtc_failed = reg8 & RTC_BATTERY_DEAD;
+	if (rtc_failed) {
+		reg8 &= ~(1 << 1);	/* Preserve the power fail state. */
+		pci_write_config8(dev, GEN_PMCON_3, reg8);
+	}
+	reg32 = pci_read_config32(dev, GEN_STS);
+	rtc_failed |= reg32 & (1 << 2);
+	rtc_init(rtc_failed);
+
+	/* Enable access to the upper 128 byte bank of CMOS RAM. */
+	pci_write_config8(dev, RTC_CONF, 0x04);
+}
+
+void i82801ax_lpc_route_dma(struct device *dev, uint8_t mask)
+{
+	uint16_t reg16;
+	int i;
+
+	reg16 = pci_read_config16(dev, PCI_DMA_CFG);
+	reg16 &= 0x300;
+	for (i = 0; i < 8; i++) {
+		if (i == 4)
+			continue;
+		reg16 |= ((mask & (1 << i)) ? 3 : 1) << (i * 2);
+	}
+	pci_write_config16(dev, PCI_DMA_CFG, reg16);
+}
+
+static void i82801ax_lpc_decode_en(device_t dev, uint16_t ich_model)
+{
+	/* Decode 0x3F8-0x3FF (COM1) for COMA port, 0x2F8-0x2FF (COM2) for COMB.
+	 * LPT decode defaults to 0x378-0x37F and 0x778-0x77F.
+	 * Floppy decode defaults to 0x3F0-0x3F5, 0x3F7.
+	 * We also need to set the value for LPC I/F Enables Register.
+	 * Note: ICH-ICH5 registers differ from ICH6-ICH9.
+	 */
+	if (ich_model <= 0x24D0) {
+		pci_write_config8(dev, COM_DEC, 0x10);
+		pci_write_config16(dev, LPC_EN_ICH0_5, 0x300F);
+	} else if (ich_model >= 0x2640) {
+		pci_write_config8(dev, LPC_IO_DEC, 0x10);
+		pci_write_config16(dev, LPC_EN_ICH6_9, 0x300F);
+	}
+}
+
+static void enable_hpet(struct device *dev)
+{
+#ifdef HPET_PRESENT
+	uint32_t reg32;
+	uint32_t code = (0 & 0x3);
+
+	reg32 = pci_read_config32(dev, GEN_CNTL);
+	reg32 |= (1 << 17);	/* Enable HPET. */
+	/*
+	 * Bits [16:15]	Memory Address Range
+	 * 00		FED0_0000h - FED0_03FFh
+	 * 01		FED0_1000h - FED0_13FFh
+	 * 10		FED0_2000h - FED0_23FFh
+	 * 11		FED0_3000h - FED0_33FFh
+	 */
+	reg32 &= ~(3 << 15);	/* Clear it */
+	reg32 |= (code << 15);
+	/* TODO: reg32 is never written to anywhere? */
+	printk_debug("Enabling HPET @0x%x\n", HPET_ADDR | (code << 12));
+#endif
+}
+
+static void lpc_init(struct device *dev)
+{
+	uint16_t ich_model = pci_read_config16(dev, PCI_DEVICE_ID);
+
+	/* Set the value for PCI command register. */
+	pci_write_config16(dev, PCI_COMMAND, 0x000f);
+
+	/* IO APIC initialization. */
+	i82801ax_enable_apic(dev);
+
+	i82801ax_enable_serial_irqs(dev);
+
+	/* Setup the PIRQ. */
+	i82801ax_pirq_init(dev, ich_model);
+
+	/* Setup power options. */
+	i82801ax_power_options(dev);
+
+	/* Set the state of the GPIO lines. */
+	gpio_init(dev, ich_model);
+
+	/* Initialize the real time clock. */
+	i82801ax_rtc_init(dev);
+
+	/* Route DMA. */
+	i82801ax_lpc_route_dma(dev, 0xff);
+
+	/* Initialize ISA DMA. */
+	isa_dma_init();
+
+	/* Setup decode ports and LPC I/F enables. */
+	i82801ax_lpc_decode_en(dev, ich_model);
+
+	/* Initialize the High Precision Event Timers, if present. */
+	enable_hpet(dev);
+}
+
+static void i82801ax_lpc_read_resources(device_t dev)
+{
+	struct resource *res;
+
+	/* Get the normal PCI resources of this device. */
+	pci_dev_read_resources(dev);
+
+	/* 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;
+}
+
+static void i82801ax_lpc_enable_resources(device_t dev)
+{
+	pci_dev_enable_resources(dev);
+	enable_childrens_resources(dev);
+}
+
+static struct device_operations lpc_ops = {
+	.read_resources		= i82801ax_lpc_read_resources,
+	.set_resources		= pci_dev_set_resources,
+	.enable_resources	= i82801ax_lpc_enable_resources,
+	.init			= lpc_init,
+	.scan_bus		= scan_static_bus,
+	.enable			= i82801ax_enable,
+};
+
+static const struct pci_driver i82801aa_lpc __pci_driver = {
+	.ops	= &lpc_ops,
+	.vendor	= PCI_VENDOR_ID_INTEL,
+	.device	= 0x2410,
+};
+
+static const struct pci_driver i82801ab_lpc __pci_driver = {
+	.ops	= &lpc_ops,
+	.vendor	= PCI_VENDOR_ID_INTEL,
+	.device	= 0x2420,
+};
+
+static const struct pci_driver i82801ba_lpc __pci_driver = {
+	.ops	= &lpc_ops,
+	.vendor	= PCI_VENDOR_ID_INTEL,
+	.device	= 0x2440,
+};
+
+static const struct pci_driver i82801ca_lpc __pci_driver = {
+	.ops	= &lpc_ops,
+	.vendor	= PCI_VENDOR_ID_INTEL,
+	.device	= 0x2480,
+};
+
+static const struct pci_driver i82801db_lpc __pci_driver = {
+	.ops	= &lpc_ops,
+	.vendor	= PCI_VENDOR_ID_INTEL,
+	.device	= 0x24c0,
+};
+
+static const struct pci_driver i82801dbm_lpc __pci_driver = {
+	.ops	= &lpc_ops,
+	.vendor	= PCI_VENDOR_ID_INTEL,
+	.device	= 0x24cc,
+};
+
+/* 82801EB and 82801ER */
+static const struct pci_driver i82801ex_lpc __pci_driver = {
+	.ops	= &lpc_ops,
+	.vendor	= PCI_VENDOR_ID_INTEL,
+	.device	= 0x24d0,
+};