| /* |
| * 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. |
| */ |
| |
| #include <console/console.h> |
| #include <device/device.h> |
| #include <device/pci.h> |
| #include <device/pci_ids.h> |
| #include <device/pci_ops.h> |
| #include <device/smbus.h> |
| #include <pc80/mc146818rtc.h> |
| #include <arch/io.h> |
| #include <cpu/x86/lapic.h> |
| #include <arch/ioapic.h> |
| #include <stdlib.h> |
| #include "sb800.h" |
| #include "smbus.c" |
| |
| #define NMI_OFF 0 |
| |
| #define MAINBOARD_POWER_OFF 0 |
| #define MAINBOARD_POWER_ON 1 |
| |
| #ifndef CONFIG_MAINBOARD_POWER_ON_AFTER_POWER_FAIL |
| #define CONFIG_MAINBOARD_POWER_ON_AFTER_POWER_FAIL MAINBOARD_POWER_ON |
| #endif |
| |
| #define BIT0 (1 << 0) |
| #define BIT1 (1 << 1) |
| #define BIT2 (1 << 2) |
| #define BIT3 (1 << 3) |
| #define BIT4 (1 << 4) |
| #define BIT5 (1 << 5) |
| #define BIT6 (1 << 6) |
| #define BIT7 (1 << 7) |
| |
| #define BIT8 (1 << 8 ) |
| #define BIT9 (1 << 9 ) |
| #define BIT10 (1 << 10) |
| #define BIT11 (1 << 11) |
| #define BIT12 (1 << 12) |
| #define BIT13 (1 << 13) |
| #define BIT14 (1 << 14) |
| #define BIT15 (1 << 15) |
| |
| #define BIT16 (1 << 16) |
| #define BIT17 (1 << 17) |
| #define BIT18 (1 << 18) |
| #define BIT19 (1 << 19) |
| #define BIT20 (1 << 20) |
| #define BIT21 (1 << 21) |
| #define BIT22 (1 << 22) |
| #define BIT23 (1 << 23) |
| #define BIT24 (1 << 24) |
| #define BIT25 (1 << 25) |
| #define BIT26 (1 << 26) |
| #define BIT27 (1 << 27) |
| #define BIT28 (1 << 28) |
| #define BIT29 (1 << 29) |
| #define BIT30 (1 << 30) |
| #define BIT31 (1 << 31) |
| |
| /* |
| * SB800 enables all USB controllers by default in SMBUS Control. |
| * SB800 enables SATA by default in SMBUS Control. |
| */ |
| |
| static void sm_init(struct device *dev) |
| { |
| u8 byte; |
| |
| printk(BIOS_INFO, "sm_init().\n"); |
| |
| /* Don't rename APIC ID */ |
| /* TODO: We should call setup_ioapic() here. But kernel hangs if CPU is K8. |
| * We need to check out why and change back. */ |
| clear_ioapic(VIO_APIC_VADDR); |
| //setup_ioapic(IO_APIC_ADDR, 0); |
| |
| /* enable serial irq */ |
| byte = pm_ioread(0x54); |
| byte |= 1 << 7; /* enable serial irq function */ |
| byte &= ~(0xF << 2); |
| byte |= 4 << 2; /* set NumSerIrqBits=4 */ |
| pm_iowrite(0x54, byte); |
| |
| pm_iowrite(0x00, 0x0E); |
| pm_iowrite(0x0B, 0x02); |
| /* 2.11 IO Trap Settings */ |
| abcfg_reg(0x10090, 1 << 16, 1 << 16); |
| |
| /* 4.1 ab index */ |
| //pci_write_config32(dev, 0xF0, AB_INDX); |
| pm_iowrite(0xE0, AB_INDX & 0xFF); |
| pm_iowrite(0xE1, (AB_INDX >> 8) & 0xFF); |
| pm_iowrite(0xE2, (AB_INDX >> 16) & 0xFF); |
| pm_iowrite(0xE3, (AB_INDX >> 24) & 0xFF); |
| /* Initialize the real time clock */ |
| cmos_init(0); |
| |
| byte = pm_ioread(0x8); |
| byte |= 1 << 2 | 1 << 4; |
| pm_iowrite(0x08, byte); |
| byte = pm_ioread(0x9); |
| byte |= 1 << 0; |
| pm_iowrite(0x09, byte); |
| |
| abcfg_reg(0x10060, (BIT31), BIT31); |
| abcfg_reg(0x1009C, (BIT4 + BIT5), BIT4 + BIT5); |
| abcfg_reg(0x9C, (BIT2 + BIT3 + BIT4 + BIT5 + BIT6 + BIT7), BIT2 + BIT3 + BIT4 + BIT5 + BIT6 + BIT7); |
| abcfg_reg(0x90, (BIT21 + BIT22 + BIT23), BIT21 + BIT22 + BIT23); |
| abcfg_reg(0xF0, (BIT6 + BIT5), BIT6 + BIT5); |
| abcfg_reg(0x10090, (BIT9 + BIT10 + BIT11 + BIT12), BIT9 + BIT10 + BIT11 + BIT12); |
| abcfg_reg(0x58, (BIT10), BIT10); |
| abcfg_reg(0xF0, (BIT3 + BIT4), BIT3 + BIT4); |
| abcfg_reg(0x54, (BIT1), BIT1); |
| // |
| axindxc_reg(0x02, BIT9, BIT9); |
| axindxc_reg(0x10, BIT9, BIT9); |
| |
| /* 4.2 Enabling Upstream DMA Access */ |
| axcfg_reg(0x04, 1 << 2, 1 << 2); |
| /* 4.3 Enabling PCIB Prefetch Settings */ |
| abcfg_reg(0x10060, 1 << 20, 1 << 20); |
| abcfg_reg(0x10064, 1 << 20, 1 << 20); |
| |
| /* 4.4 Enabling OHCI Prefetch for Performance Enhancement, A12 */ |
| abcfg_reg(0x80, 1 << 0, 1<< 0); |
| |
| /* 4.5 B-Link Client's Credit Variable Settings for the Downstream Arbitration Equation */ |
| /* 4.6 Enabling Additional Address Bits Checking in Downstream */ |
| abcfg_reg(0x9c, 1 << 0, 1 << 0); |
| //abcfg_reg(0x9c, 3 << 0, 3 << 0); //A11 |
| |
| /* 4.7 Set B-Link Prefetch Mode */ |
| abcfg_reg(0x80, 3 << 17, 3 << 17); |
| |
| // RPR Enabled SMI ordering enhancement. ABCFG 0x90[21] |
| // RPR USB Delay A-Link Express L1 State. ABCFG 0x90[17] |
| abcfg_reg(0x90, 1 << 17 | 1 << 21, 1 << 17 | 1 << 21); |
| /* 4.8 Enabling Detection of Upstream Interrupts */ |
| abcfg_reg(0x94, 1 << 20 | 0x7FFFF, 1 << 20 | 0x00FEE); |
| |
| /* 4.9: Enabling Downstream Posted Transactions to Pass Non-Posted |
| * Transactions for the K8 Platform (for All Revisions) */ |
| abcfg_reg(0x10090, 1 << 8, 1 << 8); |
| |
| /* 4.10:Programming Cycle Delay for AB and BIF Clock Gating */ |
| /* 4.11:Enabling AB Int_Arbiter Enhancement (for All Revisions) */ |
| abcfg_reg(0x10054, 0xFFFF0000, 0x01040000); |
| abcfg_reg(0x54, 0xFF << 16, 4 << 16); |
| abcfg_reg(0x54, 1 << 24, 0 << 24); |
| abcfg_reg(0x54, 1 << 26, 1 << 26); |
| abcfg_reg(0x98, 0xFFFFFF00, 0x00004700); |
| |
| /* 4.12: Enabling AB and BIF Clock Gating */ |
| abcfg_reg(0x10054, 0x0000FFFF, 0x07FF); |
| |
| /* 4.13:Enabling Requester ID for upstream traffic. */ |
| abcfg_reg(0x98, 3 << 16, 3 << 16); |
| |
| abcfg_reg(0x50, 1 << 2, 0 << 2); |
| |
| /* 5.2 Enabling GPP Port A/B/C/D */ |
| //abcfg_reg(0xC0, 0xF << 4, 0xF << 4); |
| |
| /* Enable SCI as irq9. */ |
| outb(0x10, 0xC00); |
| outb(0x9, 0xC01); |
| /* Enabled IRQ input */ |
| outb(0x9, 0xC00); |
| outb(0xF7, 0xC01); |
| |
| abcfg_reg(0x90, 0xFFFFFFFF, 0x00F80040); |
| abcfg_reg(0xA0, 0xFFFFFFFF, 0x00000000); |
| abcfg_reg(0xA4, 0xFFFFFFFF, 0x00000000); |
| abcfg_reg(0xC0, 0xFFFFFFFF, 0x0000F014); |
| abcfg_reg(0x98, 0xFFFFFFFF, 0X01034700); |
| } |
| |
| static int lsmbus_recv_byte(struct device *dev) |
| { |
| u32 device; |
| struct resource *res; |
| struct bus *pbus; |
| |
| device = dev->path.i2c.device; |
| pbus = get_pbus_smbus(dev); |
| |
| res = find_resource(pbus->dev, 0x90); |
| |
| return do_smbus_recv_byte(res->base, device); |
| } |
| |
| static int lsmbus_send_byte(struct device *dev, u8 val) |
| { |
| u32 device; |
| struct resource *res; |
| struct bus *pbus; |
| |
| device = dev->path.i2c.device; |
| pbus = get_pbus_smbus(dev); |
| |
| res = find_resource(pbus->dev, 0x90); |
| |
| return do_smbus_send_byte(res->base, device, val); |
| } |
| |
| static int lsmbus_read_byte(struct device *dev, u8 address) |
| { |
| u32 device; |
| struct resource *res; |
| struct bus *pbus; |
| |
| device = dev->path.i2c.device; |
| pbus = get_pbus_smbus(dev); |
| |
| res = find_resource(pbus->dev, 0x90); |
| |
| return do_smbus_read_byte(res->base, device, address); |
| } |
| |
| static int lsmbus_write_byte(struct device *dev, u8 address, u8 val) |
| { |
| u32 device; |
| struct resource *res; |
| struct bus *pbus; |
| |
| device = dev->path.i2c.device; |
| pbus = get_pbus_smbus(dev); |
| |
| res = find_resource(pbus->dev, 0x90); |
| |
| return do_smbus_write_byte(res->base, device, address, val); |
| } |
| static struct smbus_bus_operations lops_smbus_bus = { |
| .recv_byte = lsmbus_recv_byte, |
| .send_byte = lsmbus_send_byte, |
| .read_byte = lsmbus_read_byte, |
| .write_byte = lsmbus_write_byte, |
| }; |
| |
| static void sb800_sm_read_resources(struct device *dev) |
| { |
| struct resource *res; |
| u8 byte; |
| |
| /* rpr2.14: Hides SM bus controller Bar1 where stores HPET MMIO base address */ |
| byte = pm_ioread(0x55); |
| byte |= 1 << 7; |
| pm_iowrite(0x55, byte); |
| |
| /* Get the normal pci resources of this device */ |
| /* pci_dev_read_resources(dev); */ |
| |
| byte = pm_ioread(0x55); |
| byte &= ~(1 << 7); |
| pm_iowrite(0x55, byte); |
| |
| /* apic */ |
| res = new_resource(dev, 0x74); |
| res->base = IO_APIC_ADDR; |
| res->size = 256 * 0x10; |
| res->limit = 0xFEFFFFFUL; /* res->base + res->size -1; */ |
| res->align = 8; |
| res->gran = 8; |
| res->flags = IORESOURCE_MEM | IORESOURCE_FIXED; |
| |
| #if 0 /* Linux ACPI crashes when it is 1. For late debugging. */ |
| res = new_resource(dev, 0x14); /* TODO: hpet */ |
| res->base = 0xfed00000; /* reset hpet to widely accepted address */ |
| res->size = 0x400; |
| res->limit = 0xFFFFFFFFUL; /* res->base + res->size -1; */ |
| res->align = 8; |
| res->gran = 8; |
| res->flags = IORESOURCE_MEM | IORESOURCE_FIXED; |
| #endif |
| /* dev->command |= PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER; */ |
| |
| /* smbus */ |
| //res = new_resource(dev, 0x90); |
| //res->base = 0xB00; |
| //res->size = 0x10; |
| //res->limit = 0xFFFFUL; /* res->base + res->size -1; */ |
| //res->align = 8; |
| //res->gran = 8; |
| //res->flags = IORESOURCE_IO | IORESOURCE_FIXED; |
| |
| |
| compact_resources(dev); |
| } |
| |
| static void sb800_sm_set_resources(struct device *dev) |
| { |
| struct resource *res; |
| u8 byte; |
| |
| pci_dev_set_resources(dev); |
| |
| |
| /* rpr2.14: Make HPET MMIO decoding controlled by the memory enable bit in command register of LPC ISA bridge */ |
| byte = pm_ioread(0x52); |
| byte |= 1 << 6; |
| pm_iowrite(0x52, byte); |
| |
| res = find_resource(dev, 0x74); |
| |
| printk(BIOS_INFO, "sb800_sm_set_resources, res->base=0x%llx\n", res->base); |
| |
| //pci_write_config32(dev, 0x74, res->base | 1 << 3); |
| pm_iowrite(0x34, res->base | 0x7); |
| pm_iowrite(0x35, (res->base >> 8) & 0xFF); |
| pm_iowrite(0x36, (res->base >> 16) & 0xFF); |
| pm_iowrite(0x37, (res->base >> 24) & 0xFF); |
| #if 0 /* TODO:hpet */ |
| res = find_resource(dev, 0x14); |
| pci_write_config32(dev, 0x14, res->base); |
| #endif |
| //res = find_resource(dev, 0x90); |
| //pci_write_config32(dev, 0x90, res->base | 1); |
| } |
| |
| static struct pci_operations lops_pci = { |
| .set_subsystem = pci_dev_set_subsystem, |
| }; |
| static struct device_operations smbus_ops = { |
| .read_resources = sb800_sm_read_resources, |
| .set_resources = sb800_sm_set_resources, |
| .enable_resources = pci_dev_enable_resources, |
| .init = sm_init, |
| .scan_bus = scan_smbus, |
| .ops_pci = &lops_pci, |
| .ops_smbus_bus = &lops_smbus_bus, |
| }; |
| static const struct pci_driver smbus_driver __pci_driver = { |
| .ops = &smbus_ops, |
| .vendor = PCI_VENDOR_ID_ATI, |
| .device = PCI_DEVICE_ID_ATI_SB800_SM, |
| }; |