diff options
author | Jon Harrison <bothlyn@blueyonder.co.uk> | 2009-08-17 17:09:46 +0000 |
---|---|---|
committer | Myles Watson <mylesgw@gmail.com> | 2009-08-17 17:09:46 +0000 |
commit | 1825be291f49f892fa8c048974239aa0daa4de56 (patch) | |
tree | 0451175aed9b7d9f8d5a1cffc0a69ade799c36aa /src/southbridge/via/vt8237r/vt8237r_lpc.c | |
parent | b5f4e77bff5247dc155873f668a0ccf35400cd11 (diff) |
Get the Via EPIA-N(L)/CN400 to a reasonable level of maturity::
Tested on Via EPIA-NL8000EG with FILO payload booting FC9 (2.6.25
kernel) from SATA HDD.
ACPI is working for PCI interrupt routing, some memory stuff and
Soft-Off.
USB/SATA Working
VGA Console Working
X Working via Onboard AGP
Removed dsdt.c, fixed some whitespace.
Signed-off-by: Jon Harrison <bothlyn@blueyonder.co.uk>
Acked-by: Myles Watson <mylesgw@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4549 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/southbridge/via/vt8237r/vt8237r_lpc.c')
-rw-r--r-- | src/southbridge/via/vt8237r/vt8237r_lpc.c | 207 |
1 files changed, 185 insertions, 22 deletions
diff --git a/src/southbridge/via/vt8237r/vt8237r_lpc.c b/src/southbridge/via/vt8237r/vt8237r_lpc.c index 766d2d9de9..0b5f194288 100644 --- a/src/southbridge/via/vt8237r/vt8237r_lpc.c +++ b/src/southbridge/via/vt8237r/vt8237r_lpc.c @@ -2,6 +2,7 @@ * This file is part of the coreboot project. * * Copyright (C) 2007, 2008 Rudolf Marek <r.marek@assembler.cz> + * Copyright (C) 2009 Jon Harrison <bothlyn@blueyonder.co.uk> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License v2 as published by @@ -48,6 +49,31 @@ #define INT (1 << 8) extern void dump_south(device_t dev); +static void southbridge_init_common(struct device *dev); + +#ifdef CONFIG_EPIA_VT8237R_INIT + /* Interrupts for INT# A B C D */ +static const unsigned char pciIrqs[4] = { 10, 11, 12, 0}; + + /* Interrupt Assignments for Pins 1 2 3 4 */ +static const unsigned char sataPins[4] = { 'A','B','C','D'}; +static const unsigned char vgaPins[4] = { 'A','B','C','D'}; +static const unsigned char usbPins[4] = { 'A','B','C','D'}; +static const unsigned char enetPins[4] = { 'A','B','C','D'}; +static const unsigned char vt8237Pins[4] = { 'A','B','C','D'}; +static const unsigned char slotPins[4] = { 'C','D','A','B'}; +static const unsigned char riserPins[4] = { 'D','C','B','A'}; + +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; +} +#endif static struct ioapicreg { u32 reg; @@ -93,10 +119,16 @@ static void setup_ioapic(u32 ioapic_base) ioapic_table[0].value_high = (lapicid()) << (56 - 32); l = (u32 *)ioapic_base; +#ifdef CONFIG_EPIA_VT8237R_INIT + /* Set APIC to APIC Serial bus. */ + l[0] = 0x3; + l[4] = 0; +#else /* Set APIC to FSB message bus. */ l[0] = 0x3; val = l[4]; l[4] = (val & 0xFFFFFE) | 1; +#endif /* Set APIC ADDR - this will be VT8237R_APIC_ID. */ l[0] = 0; @@ -109,26 +141,82 @@ static void setup_ioapic(u32 ioapic_base) value_low = l[4]; l[0] = (ioapic_table[i].reg * 2) + 0x11; l[4] = ioapic_table[i].value_high; - value_high = l[4]; - - if ((i == 0) && (value_low == 0xffffffff)) { - printk_warning("IO APIC not responding.\n"); - return; + if (i == 0) { + l[0] = (ioapic_table[i].reg * 2) + 0x10; + value_low = l[4]; + if (value_low == 0xffffffff) + { + printk_warning("IO APIC not responding.\n"); + return; + } } } } -static void southbridge_init_common(struct device *dev); /** Set up PCI IRQ routing, route everything through APIC. */ static void pci_routing_fixup(struct device *dev) { +#ifdef CONFIG_EPIA_VT8237R_INIT + device_t pdev; + u8 reg; +#endif + /* PCI PNP Interrupt Routing INTE/F - disable */ pci_write_config8(dev, 0x44, 0x00); /* PCI PNP Interrupt Routing INTG/H - disable */ pci_write_config8(dev, 0x45, 0x00); + /* Gate Interrupts until RAM Writes are flushed */ + pci_write_config8(dev, 0x49, 0x20); + +#ifdef CONFIG_EPIA_VT8237R_INIT + + /* Share INTE-INTH with INTA-INTD as per stock BIOS. */ + pci_write_config8(dev, 0x46, 0x00); + + /* setup PCI IRQ routing (For PCI Slot)*/ + 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); + + /* PCI Routing Fixup */ + + //Setup MiniPCI Slot + pci_assign_irqs(0, 0x14, pin_to_irq(slotPins)); + + // Via 2 slot riser card 2nd slot + pci_assign_irqs(0, 0x13, pin_to_irq(riserPins)); + + //Setup USB + pci_assign_irqs(0, 0x10, pin_to_irq(usbPins)); + + //Setup VT8237R Sound + pci_assign_irqs(0, 0x11, pin_to_irq(vt8237Pins)); + + //Setup Ethernet + pci_assign_irqs(0, 0x12, pin_to_irq(enetPins)); + + //Setup VGA + pci_assign_irqs(1, 0x00, pin_to_irq(vgaPins)); + + /* APIC Routing Fixup */ + + // Setup SATA + pdev = dev_find_device(PCI_VENDOR_ID_VIA, + PCI_DEVICE_ID_VIA_VT6420_SATA, 0); + pci_write_config8(pdev, PCI_INTERRUPT_PIN, 0x02); + pci_assign_irqs(0, 0x0f, pin_to_irq(sataPins)); + + + // Setup PATA Override + pdev = dev_find_device(PCI_VENDOR_ID_VIA, + PCI_DEVICE_ID_VIA_82C586_1, 0); + pci_write_config8(pdev, PCI_INTERRUPT_PIN, 0x01); + pci_write_config8(pdev, PCI_INTERRUPT_LINE, 0xFF); + +#else /* Route INTE-INTH through registers above, no map to INTA-INTD. */ pci_write_config8(dev, 0x46, 0x10); @@ -143,8 +231,11 @@ static void pci_routing_fixup(struct device *dev) /* PCI INTD# Routing */ pci_write_config8(dev, 0x57, 0x00); +#endif } + + /** * Set up the power management capabilities directly into ACPI mode. * This avoids having to handle any System Management Interrupts (SMIs). @@ -165,9 +256,14 @@ static void setup_pm(device_t dev) /* Set ACPI to 9, must set IRQ 9 override to level! Set PSON gating. */ pci_write_config8(dev, 0x82, 0x40 | VT8237R_ACPI_IRQ); +#ifdef CONFIG_EPIA_VT8237R_INIT + /* Primary interupt channel, define wake events 0=IRQ0 15=IRQ15 1=en. */ + pci_write_config16(dev, 0x84, 0x3052); +#else /* Primary interupt channel, define wake events 0=IRQ0 15=IRQ15 1=en. */ pci_write_config16(dev, 0x84, 0x30b2); +#endif /* SMI output level to low, 7.5us throttle clock */ pci_write_config8(dev, 0x8d, 0x18); @@ -184,11 +280,19 @@ static void setup_pm(device_t dev) /* * 7 = stp to sust delay 1msec * 6 = SUSST# Deasserted Before PWRGD for STD + * 5 = Keyboard/Mouse Swap * 4 = PWRGOOD reset on VT8237A/S * 3 = GPO26/GPO27 is GPO * 2 = Disable Alert on Lan + * 1 = SUSCLK/GPO4 + * 0 = USB Wakeup */ + +#ifdef CONFIG_EPIA_VT8237R_INIT + pci_write_config8(dev, 0x95, 0xc2); +#else pci_write_config8(dev, 0x95, 0xcc); +#endif /* Disable GP3 timer. */ pci_write_config8(dev, 0x98, 0); @@ -233,20 +337,14 @@ static void setup_pm(device_t dev) tmp &= ~(7 << 10); tmp |= 1; outw(tmp, VT8237R_ACPI_IO_BASE + 0x04); - - - - } static void vt8237r_init(struct device *dev) { - u8 enables; - - printk_spew("Entering vt8237r_init.\n"); + u8 enables, reg8; #ifdef CONFIG_EPIA_VT8237R_INIT - printk_spew("vt8237r_init SATA LED.\n"); + printk_spew("Entering vt8237r_init, for EPIA.\n"); /* * TODO: Looks like stock BIOS can do this but causes a hang * Enable SATA LED, disable special CPU Frequency Change - @@ -255,10 +353,9 @@ static void vt8237r_init(struct device *dev) * PCS0# on Pin U1 */ enables = pci_read_config8(dev, 0xe5); - enables |= 0x02; + enables |= 0x23; pci_write_config8(dev, 0xe5, enables); - printk_spew("vt8237r_init PCI Req.\n"); /* * Enable Flash Write Access. * Note EPIA-N Does not use REQ5 or PCISTP#(Hang) @@ -267,7 +364,13 @@ static void vt8237r_init(struct device *dev) enables |= 0x2B; pci_write_config8(dev, 0xe4, enables); + /* Enables Extra RTC Ports */ + enables = pci_read_config8(dev, 0x4E); + enables |= 0x80; + pci_write_config8(dev, 0x4E, enables); + #else + printk_spew("Entering vt8237r_init.\n"); /* * Enable SATA LED, disable special CPU Frequency Change - * GPIO28 GPIO22 GPIO29 GPIO23 are GPIOs. @@ -278,23 +381,27 @@ static void vt8237r_init(struct device *dev) pci_write_config8(dev, 0xe4, 0x4); #endif - - printk_spew("vt8237r_init CPU Rst.\n"); /* Set bit 3 of 0x4f (use INIT# as CPU reset). */ enables = pci_read_config8(dev, 0x4f); enables |= 0x08; pci_write_config8(dev, 0x4f, enables); - printk_spew("vt8237r_init Read Pass Write Ctrl.\n"); +#ifdef CONFIG_EPIA_VT8237R_INIT + /* + * Set Read Pass Write Control Enable + */ + pci_write_config8(dev, 0x48, 0x0c); +#else /* * Set Read Pass Write Control Enable * (force A2 from APIC FSB to low). */ pci_write_config8(dev, 0x48, 0x8c); +#endif - printk_spew("vt8237r_init calling southbridge_init_common.\n"); southbridge_init_common(dev); +#ifndef CONFIG_EPIA_VT8237R_INIT /* FIXME: Intel needs more bit set for C2/C3. */ /* @@ -302,8 +409,9 @@ static void vt8237r_init(struct device *dev) * Will work for C3 and for FID/VID change. */ outb(0x1, VT8237R_ACPI_IO_BASE + 0x11); - - printk_spew("Leaving vt8237r_init.\n"); +#endif + + printk_spew("Leaving %s.\n", __func__); } static void vt8237s_init(struct device *dev) @@ -351,6 +459,8 @@ static void vt8237_common_init(struct device *dev) byte |= PCI_COMMAND_WAIT; pci_write_config8(dev, PCI_COMMAND, byte); +/* EPIA-N(L) Uses CN400 for BIOS Access */ +#ifndef CONFIG_EPIA_VT8237R_INIT /* Enable the internal I/O decode. */ enables = pci_read_config8(dev, 0x6C); enables |= 0x80; @@ -370,6 +480,7 @@ static void vt8237_common_init(struct device *dev) * So 0x7f here sets ROM decode to FFC00000-FFFFFFFF or 4Mbyte. */ pci_write_config8(dev, 0x41, 0x7f); +#endif /* * Set bit 6 of 0x40 (I/O recovery time). @@ -388,6 +499,29 @@ static void vt8237_common_init(struct device *dev) /* Delay transaction control */ pci_write_config8(dev, 0x43, 0xb); +#ifdef CONFIG_EPIA_VT8237R_INIT + /* I/O recovery time, default IDE routing */ + pci_write_config8(dev, 0x4c, 0x04); + + /* ROM memory cycles go to LPC. */ + pci_write_config8(dev, 0x59, 0x80); + + /* + * Bit | Meaning + * ------------- + * 3 | Bypass APIC De-Assert Message (1=Enable) + * 1 | possibly "INTE#, INTF#, INTG#, INTH# as PCI" + * | bit 1=1 works for Aaron at VIA, bit 1=0 works for jakllsch + * 0 | Dynamic Clock Gating Main Switch (1=Enable) + */ + pci_write_config8(dev, 0x5b, 0x9); + + /* Set 0x58 to 0x42 APIC On and RTC Write Protect.*/ + pci_write_config8(dev, 0x58, 0x42); + + /* Enable serial IRQ, 6PCI clocks. */ + pci_write_config8(dev, 0x52, 0x9); +#else /* I/O recovery time, default IDE routing */ pci_write_config8(dev, 0x4c, 0x44); @@ -410,6 +544,8 @@ static void vt8237_common_init(struct device *dev) /* Enable serial IRQ, 6PCI clocks. */ pci_write_config8(dev, 0x52, 0x9); +#endif + /* Power management setup */ setup_pm(dev); @@ -422,11 +558,38 @@ static void vt8237r_read_resources(device_t dev) struct resource *res; pci_dev_read_resources(dev); + + /* Fixed ACPI Base IO Base*/ + res = new_resource(dev, 0x88); + res->base = VT8237R_ACPI_IO_BASE; + res->size = 128; + res->limit = 0xffffUL; + res->flags = IORESOURCE_IO | IORESOURCE_FIXED | + IORESOURCE_STORED | IORESOURCE_ASSIGNED; + + /* Fixed EISA ECLR I/O Regs */ + res = new_resource(dev, 3); + res->base = 0x4d0; + res->size = 2; + res->limit = 0xffffUL; + res->flags = IORESOURCE_IO | IORESOURCE_FIXED | + IORESOURCE_STORED | IORESOURCE_ASSIGNED; + + /* Fixed System Management Bus I/O Resource */ + res = new_resource(dev, 0xD0); + res->base = VT8237R_SMBUS_IO_BASE; + res->size = 16; + res->limit = 0xffffUL; + res->flags = IORESOURCE_IO | IORESOURCE_FIXED | + IORESOURCE_STORED | IORESOURCE_ASSIGNED; + /* Fixed APIC resource */ res = new_resource(dev, 0x44); res->base = VT8237R_APIC_BASE; res->size = 256; res->limit = 0xffffffffUL; + res->align = 8; + res->gran = 8; res->flags = IORESOURCE_MEM | IORESOURCE_FIXED | IORESOURCE_STORED | IORESOURCE_ASSIGNED; |