zbao | 246e84b | 2012-07-13 18:47:03 +0800 | [diff] [blame] | 1 | /* |
| 2 | * This file is part of the coreboot project. |
| 3 | * |
| 4 | * Copyright (C) 2010 Advanced Micro Devices, Inc. |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; version 2 of the License. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
zbao | 246e84b | 2012-07-13 18:47:03 +0800 | [diff] [blame] | 14 | */ |
| 15 | |
| 16 | #include <console/console.h> |
Kyösti Mälkki | 13f6650 | 2019-03-03 08:01:05 +0200 | [diff] [blame] | 17 | #include <device/mmio.h> |
zbao | 246e84b | 2012-07-13 18:47:03 +0800 | [diff] [blame] | 18 | #include <device/device.h> |
| 19 | #include <device/pci.h> |
Kyösti Mälkki | 0bc06ab | 2018-05-20 15:41:05 +0300 | [diff] [blame] | 20 | #include <device/pci_def.h> |
zbao | 246e84b | 2012-07-13 18:47:03 +0800 | [diff] [blame] | 21 | #include <device/pci_ids.h> |
| 22 | #include <device/pci_ops.h> |
zbao | 246e84b | 2012-07-13 18:47:03 +0800 | [diff] [blame] | 23 | #include "hudson.h" |
Kyösti Mälkki | 29d9c56 | 2014-10-16 21:35:48 +0300 | [diff] [blame] | 24 | #include "imc.h" |
zbao | 246e84b | 2012-07-13 18:47:03 +0800 | [diff] [blame] | 25 | #include "smbus.h" |
Alexandru Gagniuc | 86777e3 | 2014-04-20 14:36:29 -0500 | [diff] [blame] | 26 | #include "smi.h" |
zbao | 246e84b | 2012-07-13 18:47:03 +0800 | [diff] [blame] | 27 | |
Alexandru Gagniuc | 342ac64 | 2014-04-14 16:44:19 -0500 | [diff] [blame] | 28 | /* Offsets from ACPI_MMIO_BASE |
| 29 | * This is defined by AGESA, but we don't include AGESA headers to avoid |
Martin Roth | 3c3a50c | 2014-12-16 20:50:26 -0700 | [diff] [blame] | 30 | * polluting the namespace. |
Alexandru Gagniuc | 342ac64 | 2014-04-14 16:44:19 -0500 | [diff] [blame] | 31 | */ |
| 32 | #define PM_MMIO_BASE 0xfed80300 |
| 33 | |
Alexandru Gagniuc | 342ac64 | 2014-04-14 16:44:19 -0500 | [diff] [blame] | 34 | void pm_write8(u8 reg, u8 value) |
zbao | 246e84b | 2012-07-13 18:47:03 +0800 | [diff] [blame] | 35 | { |
Stefan Reinauer | 772029f | 2015-07-30 16:23:50 -0700 | [diff] [blame] | 36 | write8((void *)((uintptr_t)PM_MMIO_BASE + reg), value); |
zbao | 246e84b | 2012-07-13 18:47:03 +0800 | [diff] [blame] | 37 | } |
| 38 | |
Alexandru Gagniuc | 342ac64 | 2014-04-14 16:44:19 -0500 | [diff] [blame] | 39 | u8 pm_read8(u8 reg) |
zbao | 246e84b | 2012-07-13 18:47:03 +0800 | [diff] [blame] | 40 | { |
Stefan Reinauer | 772029f | 2015-07-30 16:23:50 -0700 | [diff] [blame] | 41 | return read8((void *)((uintptr_t)PM_MMIO_BASE + reg)); |
zbao | 246e84b | 2012-07-13 18:47:03 +0800 | [diff] [blame] | 42 | } |
| 43 | |
Alexandru Gagniuc | 342ac64 | 2014-04-14 16:44:19 -0500 | [diff] [blame] | 44 | void pm_write16(u8 reg, u16 value) |
zbao | 246e84b | 2012-07-13 18:47:03 +0800 | [diff] [blame] | 45 | { |
Stefan Reinauer | 772029f | 2015-07-30 16:23:50 -0700 | [diff] [blame] | 46 | write16((void *)((uintptr_t)PM_MMIO_BASE + reg), value); |
zbao | 246e84b | 2012-07-13 18:47:03 +0800 | [diff] [blame] | 47 | } |
| 48 | |
Alexandru Gagniuc | 342ac64 | 2014-04-14 16:44:19 -0500 | [diff] [blame] | 49 | u16 pm_read16(u16 reg) |
zbao | 246e84b | 2012-07-13 18:47:03 +0800 | [diff] [blame] | 50 | { |
Stefan Reinauer | 772029f | 2015-07-30 16:23:50 -0700 | [diff] [blame] | 51 | return read16((void *)((uintptr_t)PM_MMIO_BASE + reg)); |
zbao | 246e84b | 2012-07-13 18:47:03 +0800 | [diff] [blame] | 52 | } |
| 53 | |
Alexandru Gagniuc | d2e5f68 | 2014-04-16 16:33:03 -0500 | [diff] [blame] | 54 | #define PM_REG_USB_ENABLE 0xef |
| 55 | |
| 56 | enum usb_enable { |
| 57 | USB_EN_DEVFN_12_0 = (1 << 0), |
| 58 | USB_EN_DEVFN_12_2 = (1 << 1), |
| 59 | USB_EN_DEVFN_13_0 = (1 << 2), |
| 60 | USB_EN_DEVFN_13_2 = (1 << 3), |
| 61 | USB_EN_DEVFN_16_0 = (1 << 4), |
| 62 | USB_EN_DEVFN_16_2 = (1 << 5), |
| 63 | }; |
| 64 | |
| 65 | static void hudson_disable_usb(u8 disable) |
| 66 | { |
| 67 | u8 reg8; |
| 68 | |
| 69 | /* Bit 7 handles routing, 6 is reserved. we don't mess with those */ |
| 70 | disable &= 0x3f; |
| 71 | |
| 72 | reg8 = pm_read8(PM_REG_USB_ENABLE); |
| 73 | reg8 &= ~disable; |
| 74 | pm_write8(PM_REG_USB_ENABLE, reg8); |
| 75 | } |
| 76 | |
Elyes HAOUAS | a93e754 | 2018-05-19 14:30:47 +0200 | [diff] [blame] | 77 | void hudson_enable(struct device *dev) |
zbao | 246e84b | 2012-07-13 18:47:03 +0800 | [diff] [blame] | 78 | { |
Martin Roth | f5726ea | 2013-01-18 12:55:40 -0700 | [diff] [blame] | 79 | printk(BIOS_DEBUG, "hudson_enable()\n"); |
Dave Frodin | ea90963 | 2013-05-31 08:15:57 -0600 | [diff] [blame] | 80 | switch (dev->path.pci.devfn) { |
Tobias Diedrich | ae3adff | 2014-11-08 00:38:33 +0100 | [diff] [blame] | 81 | case PCI_DEVFN(0x14, 5): |
| 82 | if (dev->enabled == 0) { |
Kyösti Mälkki | 0bc06ab | 2018-05-20 15:41:05 +0300 | [diff] [blame] | 83 | u32 usb_device_id = pci_read_config16(dev, PCI_DEVICE_ID); |
Tobias Diedrich | ae3adff | 2014-11-08 00:38:33 +0100 | [diff] [blame] | 84 | u8 reg8; |
Kyösti Mälkki | 9d9a552 | 2016-11-19 22:14:59 +0200 | [diff] [blame] | 85 | if (usb_device_id == PCI_DEVICE_ID_AMD_SB900_USB_20_5) { |
Tobias Diedrich | ae3adff | 2014-11-08 00:38:33 +0100 | [diff] [blame] | 86 | /* turn off and remove device 0:14.5 from PCI space */ |
| 87 | reg8 = pm_read8(0xef); |
| 88 | reg8 &= ~(1 << 6); |
| 89 | pm_write8(0xef, reg8); |
| 90 | } |
| 91 | } |
| 92 | break; |
| 93 | |
Alexandru Gagniuc | d2e5f68 | 2014-04-16 16:33:03 -0500 | [diff] [blame] | 94 | case PCI_DEVFN(0x14, 7): |
Dave Frodin | ea90963 | 2013-05-31 08:15:57 -0600 | [diff] [blame] | 95 | if (dev->enabled == 0) { |
Kyösti Mälkki | 0bc06ab | 2018-05-20 15:41:05 +0300 | [diff] [blame] | 96 | u32 sd_device_id = pci_read_config16(dev, PCI_DEVICE_ID); |
Dave Frodin | ea90963 | 2013-05-31 08:15:57 -0600 | [diff] [blame] | 97 | /* turn off the SDHC controller in the PM reg */ |
Alexandru Gagniuc | 342ac64 | 2014-04-14 16:44:19 -0500 | [diff] [blame] | 98 | u8 reg8; |
Dave Frodin | ea90963 | 2013-05-31 08:15:57 -0600 | [diff] [blame] | 99 | if (sd_device_id == PCI_DEVICE_ID_AMD_HUDSON_SD) { |
Alexandru Gagniuc | 342ac64 | 2014-04-14 16:44:19 -0500 | [diff] [blame] | 100 | reg8 = pm_read8(0xe7); |
| 101 | reg8 &= ~(1 << 0); |
| 102 | pm_write8(0xe7, reg8); |
Dave Frodin | ea90963 | 2013-05-31 08:15:57 -0600 | [diff] [blame] | 103 | } |
| 104 | else if (sd_device_id == PCI_DEVICE_ID_AMD_YANGTZE_SD) { |
Alexandru Gagniuc | 342ac64 | 2014-04-14 16:44:19 -0500 | [diff] [blame] | 105 | reg8 = pm_read8(0xe8); |
| 106 | reg8 &= ~(1 << 0); |
| 107 | pm_write8(0xe8, reg8); |
Dave Frodin | ea90963 | 2013-05-31 08:15:57 -0600 | [diff] [blame] | 108 | } |
| 109 | /* remove device 0:14.7 from PCI space */ |
Alexandru Gagniuc | 342ac64 | 2014-04-14 16:44:19 -0500 | [diff] [blame] | 110 | reg8 = pm_read8(0xd3); |
| 111 | reg8 &= ~(1 << 6); |
| 112 | pm_write8(0xd3, reg8); |
Dave Frodin | ea90963 | 2013-05-31 08:15:57 -0600 | [diff] [blame] | 113 | } |
| 114 | break; |
Alexandru Gagniuc | d2e5f68 | 2014-04-16 16:33:03 -0500 | [diff] [blame] | 115 | |
| 116 | /* Make sure to disable other functions if function 0 is disabled */ |
| 117 | case PCI_DEVFN(0x12, 0): |
| 118 | if (dev->enabled == 0) |
| 119 | hudson_disable_usb(USB_EN_DEVFN_12_0); |
| 120 | case PCI_DEVFN(0x12, 2): /* Fall through */ |
| 121 | if (dev->enabled == 0) |
| 122 | hudson_disable_usb(USB_EN_DEVFN_12_2); |
| 123 | break; |
| 124 | case PCI_DEVFN(0x13, 0): |
| 125 | if (dev->enabled == 0) |
| 126 | hudson_disable_usb(USB_EN_DEVFN_13_0); |
| 127 | case PCI_DEVFN(0x13, 2): /* Fall through */ |
| 128 | if (dev->enabled == 0) |
| 129 | hudson_disable_usb(USB_EN_DEVFN_13_2); |
| 130 | break; |
| 131 | case PCI_DEVFN(0x16, 0): |
| 132 | if (dev->enabled == 0) |
| 133 | hudson_disable_usb(USB_EN_DEVFN_16_0); |
| 134 | case PCI_DEVFN(0x16, 2): /* Fall through */ |
| 135 | if (dev->enabled == 0) |
| 136 | hudson_disable_usb(USB_EN_DEVFN_16_2); |
| 137 | break; |
Dave Frodin | ea90963 | 2013-05-31 08:15:57 -0600 | [diff] [blame] | 138 | default: |
| 139 | break; |
| 140 | } |
zbao | 246e84b | 2012-07-13 18:47:03 +0800 | [diff] [blame] | 141 | } |
| 142 | |
zbao | 246e84b | 2012-07-13 18:47:03 +0800 | [diff] [blame] | 143 | |
Alexandru Gagniuc | 86777e3 | 2014-04-20 14:36:29 -0500 | [diff] [blame] | 144 | static void hudson_init_acpi_ports(void) |
| 145 | { |
| 146 | /* We use some of these ports in SMM regardless of whether or not |
| 147 | * ACPI tables are generated. Enable these ports indiscriminately. |
| 148 | */ |
| 149 | |
| 150 | pm_write16(0x60, ACPI_PM_EVT_BLK); |
| 151 | pm_write16(0x62, ACPI_PM1_CNT_BLK); |
| 152 | pm_write16(0x64, ACPI_PM_TMR_BLK); |
| 153 | pm_write16(0x68, ACPI_GPE0_BLK); |
Timothy Pearson | 033bb4b | 2015-02-10 22:21:39 -0600 | [diff] [blame] | 154 | /* CpuControl is in \_PR.CP00, 6 bytes */ |
Alexandru Gagniuc | 86777e3 | 2014-04-20 14:36:29 -0500 | [diff] [blame] | 155 | pm_write16(0x66, ACPI_CPU_CONTROL); |
| 156 | |
| 157 | if (IS_ENABLED(CONFIG_HAVE_SMI_HANDLER)) { |
| 158 | pm_write16(0x6a, ACPI_SMI_CTL_PORT); |
| 159 | hudson_enable_acpi_cmd_smi(); |
| 160 | } else { |
| 161 | pm_write16(0x6a, 0); |
| 162 | } |
| 163 | |
| 164 | /* AcpiDecodeEnable, When set, SB uses the contents of the PM registers |
| 165 | * at index 60-6B to decode ACPI I/O address. AcpiSmiEn & SmiCmdEn |
| 166 | */ |
| 167 | pm_write8(0x74, 1<<0 | 1<<1 | 1<<4 | 1<<2); |
| 168 | } |
| 169 | |
| 170 | static void hudson_init(void *chip_info) |
| 171 | { |
| 172 | hudson_init_acpi_ports(); |
| 173 | } |
| 174 | |
Kyösti Mälkki | 29d9c56 | 2014-10-16 21:35:48 +0300 | [diff] [blame] | 175 | static void hudson_final(void *chip_info) |
| 176 | { |
Kyösti Mälkki | 29d9c56 | 2014-10-16 21:35:48 +0300 | [diff] [blame] | 177 | /* AMD AGESA does not enable thermal zone, so we enable it here. */ |
Kyösti Mälkki | eb064b3 | 2017-08-24 21:20:10 +0300 | [diff] [blame] | 178 | if (IS_ENABLED(CONFIG_HUDSON_IMC_FWM) && |
| 179 | !IS_ENABLED(CONFIG_ACPI_ENABLE_THERMAL_ZONE)) |
| 180 | enable_imc_thermal_zone(); |
Kyösti Mälkki | 29d9c56 | 2014-10-16 21:35:48 +0300 | [diff] [blame] | 181 | } |
| 182 | |
zbao | 246e84b | 2012-07-13 18:47:03 +0800 | [diff] [blame] | 183 | struct chip_operations southbridge_amd_agesa_hudson_ops = { |
| 184 | CHIP_NAME("ATI HUDSON") |
| 185 | .enable_dev = hudson_enable, |
Kyösti Mälkki | 29d9c56 | 2014-10-16 21:35:48 +0300 | [diff] [blame] | 186 | .init = hudson_init, |
| 187 | .final = hudson_final |
zbao | 246e84b | 2012-07-13 18:47:03 +0800 | [diff] [blame] | 188 | }; |