/* * This file is part of the coreboot project. * * Copyright (C) 2011 Advanced Micro Devices, Inc. * Copyright (C) 2014 Sage Electronic Engineering, LLC. * Copyright (C) 2014 Edward O'Callaghan * * 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 #include #include #include #include #include #include #include /*********************************************************** * These arrays set up the FCH PCI_INTR registers 0xC00/0xC01. * This table is responsible for physically routing the PIC and * IOAPIC IRQs to the different PCI devices on the system. It * is read and written via registers 0xC00/0xC01 as an * Index/Data pair. These values are chipset and mainboard * dependent and should be updated accordingly. * * These values are used by the PCI configuration space, * MP Tables. TODO: Make ACPI use these values too. * * The Persimmon PCI INTA/B/C/D pins are connected to * FCH pins INTE/F/G/H on the schematic so these need * to be routed as well. */ static const u8 mainboard_picr_data[FCH_INT_TABLE_SIZE] = { /* INTA# - INTH# */ [0x00] = 0x0A,0x0B,0x0A,0x0B,0x0A,0x0B,0x0A,0x0B, /* Misc-nil,0,1,2, INT from Serial irq */ [0x08] = 0x00,0xF0,0x00,0x00,0x1F,0x1F,0x1F,0x1F, /* SCI, SMBUS0, ASF, HDA, FC, GEC, PerfMon */ [0x10] = 0x1F,0x1F,0x1F,0x0A,0x1F,0x1F,0x1F, /* IMC INT0 - 5 */ [0x20] = 0x1F,0x1F,0x1F,0x1F,0x1F,0x1F, /* USB Devs 18/19/20/22 INTA-C */ [0x30] = 0x0A,0x0B,0x0A,0x0B,0x0A,0x0B,0x0A, /* IDE, SATA */ [0x40] = 0x0B,0x0B, /* GPPInt0 - 3 */ [0x50] = 0x0A,0x0B,0x0A,0x0B }; static const u8 mainboard_intr_data[FCH_INT_TABLE_SIZE] = { /* INTA# - INTH# */ [0x00] = 0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17, /* Misc-nil,0,1,2, INT from Serial irq */ [0x08] = 0x00,0x00,0x00,0x00,0x1F,0x1F,0x1F,0x1F, /* SCI, SMBUS0, ASF, HDA, FC, GEC, PerMon */ [0x10] = 0x09,0x1F,0x1F,0x10,0x1F,0x12,0x1F, /* IMC INT0 - 5 */ [0x20] = 0x1F,0x1F,0x1F,0x1F,0x1F,0x1F, /* USB Devs 18/19/22/20 INTA-C */ [0x30] = 0x12,0x11,0x12,0x11,0x12,0x11,0x12, /* IDE, SATA */ [0x40] = 0x11,0x13, /* GPPInt0 - 3 */ [0x50] = 0x10,0x11,0x12,0x13 }; /* * This table defines the index into the picr/intr_data * tables for each device. Any enabled device and slot * that uses hardware interrupts should have an entry * in this table to define its index into the FCH * PCI_INTR register 0xC00/0xC01. This index will define * the interrupt that it should use. Putting PIRQ_A into * the PIN A index for a device will tell that device to * use PIC IRQ 10 if it uses PIN A for its hardware INT. */ /* * Persimmon has PCI slot INTA/B/C/D connected to PIRQE/F/G/H * but because PCI INT_PIN swizzling isn't implemented to match * the IDSEL (dev 3) of the slot, the table is adjusted for the * swizzle and INTA is connected to PIRQH so PINA/B/C/D on * off-chip devices should get mapped to PIRQH/E/F/G. */ static const struct pirq_struct mainboard_pirq_data[] = { /* {PCI_devfn, {PIN A, PIN B, PIN C, PIN D}}, */ {GFX_DEVFN, {PIRQ_A, PIRQ_B, PIRQ_NC, PIRQ_NC}}, /* VGA: 01.0 */ {NB_PCIE_PORT1_DEVFN, {PIRQ_A, PIRQ_B, PIRQ_C, PIRQ_D}}, /* NIC: 04.0 */ {NB_PCIE_PORT3_DEVFN, {PIRQ_A, PIRQ_B, PIRQ_C, PIRQ_D}}, /* PCIe bdg: 06.0 */ {SATA_DEVFN, {PIRQ_SATA, PIRQ_NC, PIRQ_NC, PIRQ_NC}}, /* SATA: 11.0 */ {OHCI1_DEVFN, {PIRQ_OHCI1, PIRQ_NC, PIRQ_NC, PIRQ_NC}}, /* OHCI1: 12.0 */ {EHCI1_DEVFN, {PIRQ_NC, PIRQ_EHCI1, PIRQ_NC, PIRQ_NC}}, /* EHCI1: 12.2 */ {OHCI2_DEVFN, {PIRQ_OHCI2, PIRQ_NC, PIRQ_NC, PIRQ_NC}}, /* OHCI2: 13.0 */ {EHCI2_DEVFN, {PIRQ_NC, PIRQ_EHCI2, PIRQ_NC, PIRQ_NC}}, /* EHCI2: 13.2 */ {SMBUS_DEVFN, {PIRQ_SMBUS, PIRQ_NC, PIRQ_NC, PIRQ_NC}}, /* SMBUS: 14.0 */ {IDE_DEVFN, {PIRQ_NC, PIRQ_IDE, PIRQ_NC, PIRQ_NC}}, /* IDE: 14.1 */ {HDA_DEVFN, {PIRQ_HDA, PIRQ_NC, PIRQ_NC, PIRQ_NC}}, /* HDA: 14.2 */ {SB_PCI_PORT_DEVFN, {PIRQ_H, PIRQ_E, PIRQ_F, PIRQ_G}}, /* PCI bdg: 14.4 */ {OHCI4_DEVFN, {PIRQ_NC, PIRQ_NC, PIRQ_OHCI4, PIRQ_NC}}, /* OHCI4: 14.5 */ {OHCI3_DEVFN, {PIRQ_OHCI3, PIRQ_NC, PIRQ_NC, PIRQ_NC}}, /* OHCI3: 16.0 */ {EHCI3_DEVFN, {PIRQ_NC, PIRQ_EHCI3, PIRQ_NC, PIRQ_NC}}, /* EHCI3: 16.2 */ }; /* PIRQ Setup */ static void pirq_setup(void) { pirq_data_ptr = mainboard_pirq_data; pirq_data_size = sizeof(mainboard_pirq_data) / sizeof(struct pirq_struct); intr_data_ptr = mainboard_intr_data; picr_data_ptr = mainboard_picr_data; } /********************************************** * Enable the dedicated functions of the board. **********************************************/ static void mainboard_enable(struct device *dev) { printk(BIOS_INFO, "Mainboard " CONFIG_MAINBOARD_PART_NUMBER " Enable.\n"); /* enable GPP CLK0 thru CLK3 (interleaved) */ /* disable GPP CLK4 thru SLT_GFX_CLK */ u8 *misc_mem_clk_cntrl = (u8 *)(ACPI_MMIO_BASE + MISC_BASE); write8(misc_mem_clk_cntrl + 0, 0xFF); write8(misc_mem_clk_cntrl + 1, 0xFF); write8(misc_mem_clk_cntrl + 2, 0x00); write8(misc_mem_clk_cntrl + 3, 0x00); write8(misc_mem_clk_cntrl + 4, 0x00); /* * Initialize ASF registers to an arbitrary address because someone * long ago set things up this way inside the SPD read code. The * SPD read code has been made generic and moved out of the board * directory, so the ASF init is being done here. */ pm_iowrite(0x29, 0x80); pm_iowrite(0x28, 0x61); /* Initialize the PIRQ data structures for consumption */ pirq_setup(); } struct chip_operations mainboard_ops = { .enable_dev = mainboard_enable, };