diff options
Diffstat (limited to 'src/northbridge/via/vx800/lpc.c')
-rw-r--r-- | src/northbridge/via/vx800/lpc.c | 350 |
1 files changed, 0 insertions, 350 deletions
diff --git a/src/northbridge/via/vx800/lpc.c b/src/northbridge/via/vx800/lpc.c deleted file mode 100644 index 93413a2d1f07..000000000000 --- a/src/northbridge/via/vx800/lpc.c +++ /dev/null @@ -1,350 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2009 One Laptop per Child, Association, 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. - */ - -#include <arch/io.h> -#include <console/console.h> -#include <device/device.h> -#include <device/pci.h> -#include <device/pci_ops.h> -#include <device/pci_ids.h> - -#include <pc80/mc146818rtc.h> -#include <pc80/keyboard.h> -#include <pc80/i8259.h> -#include "vx800.h" - -static const unsigned char pciIrqs[4] = { 0xa, 0x9, 0xb, 0xa }; - -static const unsigned char vgaPins[4] = { 'A', 'B', 'C', 'D' }; //only INTA - -static const unsigned char slotPins[4] = { 'A', 'A', 'A', 'A' }; //all 4 - -static const unsigned char usbdevicePins[4] = { 'A', 'B', 'C', 'D' }; //only INTA -static const unsigned char sdioPins[4] = { 'A', 'B', 'C', 'D' }; //only INTA -static const unsigned char sd_ms_ctrl_Pins[4] = { 'B', 'C', 'D', 'A' }; //only INTA -static const unsigned char ce_ata_nf_ctrl_Pins[4] = { 'C', 'C', 'D', 'A' }; //only INTA - -static const unsigned char hdacaudioPins[4] = { 'B', 'C', 'D', 'A' }; //only INTA - -static unsigned char *pin_to_irq(const unsigned char *pin) -{ - static unsigned char Irqs[4]; - int i; - for (i = 0; i < 4; i++) - Irqs[i] = pciIrqs[pin[i] - 'A']; - - return Irqs; -} - -static void pci_routing_fixup(struct device *dev) -{ - printk(BIOS_INFO, "%s: dev is %p\n", __FUNCTION__, dev); - - /* set up PCI IRQ routing */ - pci_write_config8(dev, 0x55, pciIrqs[0] << 4); - pci_write_config8(dev, 0x56, pciIrqs[1] | (pciIrqs[2] << 4)); - pci_write_config8(dev, 0x57, pciIrqs[3] << 4); - - /* VGA */ - printk(BIOS_INFO, "setting vga\n"); - pci_assign_irqs(0, 0x1, pin_to_irq(vgaPins)); - - /* PCI slot */ - printk(BIOS_INFO, "setting pci slot\n"); - pci_assign_irqs(0, 0x08, pin_to_irq(slotPins)); - - /* PCI slot */ - printk(BIOS_INFO, "setting USB Device Controller\n"); - pci_assign_irqs(0, 0x0b, pin_to_irq(usbdevicePins)); - - /* PCI slot */ - printk(BIOS_INFO, "setting SDIO Controller\n"); - pci_assign_irqs(0, 0x0c, pin_to_irq(sdioPins)); - - /* PCI slot */ - printk(BIOS_INFO, "setting SD $ MS Controller\n"); - pci_assign_irqs(0, 0x0d, pin_to_irq(sd_ms_ctrl_Pins)); - - /* PCI slot */ - printk(BIOS_INFO, "setting CE-ATA NF Controller(Card Boot)\n"); - pci_assign_irqs(0, 0x0e, pin_to_irq(ce_ata_nf_ctrl_Pins)); - - /* PCI slot */ - printk(BIOS_INFO, "setting ide\n"); - - /* Standard usb components */ - printk(BIOS_INFO, "setting usb1-2\n"); - - /* sound hardware */ - printk(BIOS_INFO, "setting hdac audio\n"); - pci_assign_irqs(0, 0x14, pin_to_irq(hdacaudioPins)); - - printk(BIOS_SPEW, "%s: DONE\n", __FUNCTION__); -} - -static void setup_pm(struct device *dev) -{ - u16 tmp; - /* Debounce LID and PWRBTN# Inputs for 16ms. */ - pci_write_config8(dev, 0x80, 0x20); - - /* Set ACPI base address to IO VX800_ACPI_IO_BASE */ - pci_write_config16(dev, 0x88, VX800_ACPI_IO_BASE | 1); - - /* set ACPI irq to 9 */ - pci_write_config8(dev, 0x82, 0x49); - - /* Primary interupt channel, define wake events 0 = IRQ0 15 = IRQ15 1 = en. */ - pci_write_config16(dev, 0x84, 0x609a); // 0x609a?? - - /* SMI output level to low, 7.5us throttle clock */ - pci_write_config8(dev, 0x8d, 0x18); - - /* GP Timer Control 1s */ - pci_write_config8(dev, 0x93, 0x88); - - /* Power Well */ - pci_write_config8(dev, 0x94, 0x20); // 0x20?? - - /* 7 = stp to sust delay 1msec - * 6 = SUSST# Deasserted Before PWRGD for STD - */ - pci_write_config8(dev, 0x95, 0xc0); // 0xc1?? - - /* Disable GP2 & GP3 Timer */ - pci_write_config8(dev, 0x98, 0); - - /* GP2 Timer Counter */ - pci_write_config8(dev, 0x99, 0xfb); - - /* Multi Function Select 1 */ - pci_write_config8(dev, 0xe4, 0x00); - /* Multi Function Select 2 */ - pci_write_config8(dev, 0xe5, 0x41); //?? - - /* Enable ACPI access (and setup like award) */ - pci_write_config8(dev, 0x81, 0x84); - - /* Clear status events. */ - outw(0xffff, VX800_ACPI_IO_BASE + 0x00); - outw(0xffff, VX800_ACPI_IO_BASE + 0x20); - outw(0xffff, VX800_ACPI_IO_BASE + 0x28); - outl(0xffffffff, VX800_ACPI_IO_BASE + 0x30); - - /* Disable SCI on GPIO. */ - outw(0x0, VX800_ACPI_IO_BASE + 0x22); - - /* Disable SMI on GPIO. */ - outw(0x0, VX800_ACPI_IO_BASE + 0x24); - - /* Disable all global enable SMIs. */ - outw(0x0, VX800_ACPI_IO_BASE + 0x2a); - - /* All SMI off, both IDE buses ON, PSON rising edge. */ - outw(0x0, VX800_ACPI_IO_BASE + 0x2c); - - /* Primary activity SMI disable. */ - outl(0x0, VX800_ACPI_IO_BASE + 0x34); - - /* GP timer reload on none. */ - outl(0x0, VX800_ACPI_IO_BASE + 0x38); - - /* Disable extended IO traps. */ - outb(0x0, VX800_ACPI_IO_BASE + 0x42); - - tmp = inw(VX800_ACPI_IO_BASE + 0x04); - /* SCI is generated for RTC/pwrBtn/slpBtn. */ - tmp |= 1; - outw(tmp, VX800_ACPI_IO_BASE + 0x04); - - /* Allow SLP# signal to assert LDTSTOP_L. - * Will work for C3 and for FID/VID change. - */ - outb(0x1, VX800_ACPI_IO_BASE + 0x11); -} - -static void S3_ps2_kb_ms_wakeup(struct device *dev) -{ - u8 enables; - enables = pci_read_config8(dev, 0x51); - enables |= 2; - pci_write_config8(dev, 0x51, enables); - - outb(0xe0, 0x2e); - outb(0x0b, 0x2f); //if 09,then only support kb wakeup - - outb(0xe1, 0x2e); //set any key scan code can wakeup - outb(0x00, 0x2f); - - outb(0xe9, 0x2e); //set any mouse scan code can wakeup - outb(0x00, 0x2f); - - enables &= 0xd; - pci_write_config8(dev, 0x51, enables); - - outb(inb(VX800_ACPI_IO_BASE + 0x02) | 0x20, VX800_ACPI_IO_BASE + 0x02); //ACPI golabe enable for sci smi trigger - outw(inw(VX800_ACPI_IO_BASE + 0x22) | 0x204, VX800_ACPI_IO_BASE + 0x22); //ACPI SCI on Internal KBC PME and mouse PME -} - -static void S3_usb_wakeup(struct device *dev) -{ - outw(inw(VX800_ACPI_IO_BASE + 0x22) | 0x4000, VX800_ACPI_IO_BASE + 0x22); //SCI on USB PME -} - -static void S3_lid_wakeup(struct device *dev) -{ - outw(inw(VX800_ACPI_IO_BASE + 0x22) | 0x800, VX800_ACPI_IO_BASE + 0x22); //SCI on LID PME -} - -/* This looks good enough to work, maybe */ -static void vx800_sb_init(struct device *dev) -{ - unsigned char enables; - - // enable the internal I/O decode - enables = pci_read_config8(dev, 0x6C); - enables |= 0x80; - pci_write_config8(dev, 0x6C, enables); - - // Map 4MB of FLASH into the address space - - // Set bit 6 of 0x40, because Award does it (IO recovery time) - // IMPORTANT FIX - EISA 0x4d0 decoding must be on so that PCI - // interrupts can be properly marked as level triggered. - enables = pci_read_config8(dev, 0x40); - enables |= 0x44; - pci_write_config8(dev, 0x40, enables); - - /* DMA Line buffer control */ - enables = pci_read_config8(dev, 0x42); - enables |= 0xf0; - pci_write_config8(dev, 0x42, enables); - - /* I/O recovery time */ - pci_write_config8(dev, 0x4c, 0x44); - - /* ROM memory cycles go to LPC. */ - pci_write_config8(dev, 0x59, 0x80); - - /* Set 0x5b to 0x01 to match Award */ - enables = pci_read_config8(dev, 0x5b); - enables |= 0x01; - pci_write_config8(dev, 0x5b, enables); - - /* Set Read Pass Write Control Enable */ - pci_write_config8(dev, 0x48, 0x0c); - - /* Set 0x58 to 0x42 APIC and RTC. */ - enables = pci_read_config8(dev, 0x58); - enables |= 0x41; // - pci_write_config8(dev, 0x58, enables); - - /* Set bit 3 of 0x4f to match award (use INIT# as CPU reset) */ - enables = pci_read_config8(dev, 0x4f); - enables |= 0x08; - pci_write_config8(dev, 0x4f, enables); - - /* enable serial irq */ - pci_write_config8(dev, 0x52, 0x9); - - /* dma */ - pci_write_config8(dev, 0x53, 0x00); - - // Power management setup - setup_pm(dev); - - /* set up isa bus -- i/o recovery time, ROM write enable, extend-ale */ - pci_write_config8(dev, 0x40, 0x54); - - // Start the rtc - cmos_init(0); -} - -/* total kludge to get lxb to call our childrens set/enable functions - these are - not called unless this device has a resource to set - so set a dummy one */ -static void vx800_read_resources(struct device *dev) -{ - - struct resource *resource; - pci_dev_read_resources(dev); - resource = new_resource(dev, 1); - resource->flags |= - IORESOURCE_FIXED | IORESOURCE_ASSIGNED | IORESOURCE_IO | - IORESOURCE_STORED; - resource->size = 2; - resource->base = 0x2e; -} - -static void vx800_set_resources(struct device *dev) -{ - struct resource *resource; - resource = find_resource(dev, 1); - resource->flags |= IORESOURCE_STORED; - pci_dev_set_resources(dev); -} - -static void southbridge_init(struct device *dev) -{ - printk(BIOS_DEBUG, "vx800 sb init\n"); - vx800_sb_init(dev); - pci_routing_fixup(dev); - - setup_i8259(); // make sure interupt controller is configured before keyboard init - - /* turn on keyboard and RTC, no need to visit this reg twice */ - pc_keyboard_init(NO_AUX_DEVICE); - - printk(BIOS_DEBUG, "ps2 usb lid, you set who can wakeup system from s3 sleep\n"); - S3_ps2_kb_ms_wakeup(dev); - S3_usb_wakeup(dev); - S3_lid_wakeup(dev); - -/* enable acpi CPU c3 state. (c2 state need not do anything.) - #1 - fadt->pm2_cnt_blk = 0x22;//to support cpu-c3 - fadt->p_lvl2_lat = 0x50; //this is the coreboot source - fadt->p_lvl3_lat = 0x320;// - fadt->pm2_cnt_len = 1;//to support cpu-c3 - #2 - ssdt? ->every CPU has a P_BLK address. set it to 0x10 (so that "Read Processor Level3 register(PMIORx15<7:0>) to enter C3 state"---VIA vx800 P SPEC ) - #3 write 0x17 in to PMIO = VX800_ACPI_IO_BASE + 0x26, following the describtion in the P-spec. - 1 enable SLP# asserts in C3 state PMIORx26<1> = 1 - 2 enable CPUSTP# asserts in C3 state; PMIORx26<2> = 1 - 3 CLKRUN# is always asserted PMIORx26<3> = 0 - 4 Disable PCISTP# When CLKRUN# is asserted - 1: PCISTP# will not assert When CLKRUN# is asserted - PMIORx26<4> = 1 - 5 This bit controls whether the CPU voltage is lowered when in C3/S1 state. - VRDSLP will be active in either this bit set in C3 or LVL4 register read - PMIORx26<0> =0 - 6 Read Processor Level3 register(PMIORx15<7:0>) to enter C3 state PMIORx15 - */ - outb(0x17, VX800_ACPI_IO_BASE + 0x26); - -} - -static struct device_operations vx800_lpc_ops = { - .read_resources = vx800_read_resources, - .set_resources = vx800_set_resources, - .enable_resources = pci_dev_enable_resources, - .init = southbridge_init, - .scan_bus = scan_lpc_bus, -}; - -static const struct pci_driver lpc_driver __pci_driver = { - .ops = &vx800_lpc_ops, - .vendor = PCI_VENDOR_ID_VIA, - .device = PCI_DEVICE_ID_VIA_VX855_LPC, -}; |