Documentation/mainboard/asus/f2a85-m.md

   1 # ASUS F2A85-M
   2
   3 This page describes how to run coreboot on the [ASUS F2A85-M].
   4
   5 ## Variants
   6 - ASUS F2A85-M - Working
   7 - ASUS F2A85-M LE - Working
   8 - ASUS F2A85-M PRO - Working
   9 - ASUS F2A85-M2 - Working
  10 - ASUS F2A85-M/CSM - Unsure if WIP.
  11
  12 ## Technology
  13
  14 Both "Trinity" and "Richland" desktop processing units are working,
  15 the CPU architecture in these CPUs/APUs is [Piledriver],
  16 and their GPU is [TeraScale 3] (VLIW4-based).
  17
  18 ```{eval-rst}
  19 +------------------+--------------------------------------------------+
  20 | F2A85-M          |                                                  |
  21 +------------------+--------------------------------------------------+
  22 | DDR voltage IC   | Nuvoton NCT3933U (AUX SMBUS 0x15)                |
  23 +------------------+--------------------------------------------------+
  24 | Network          | Realtek RTL8111F                                 |
  25 +------------------+--------------------------------------------------+
  26 | Northbridge      | Integrated into CPU with IMC and GPU (APUs only) |
  27 +------------------+--------------------------------------------------+
  28 | Southbridge      | Hudson-D4                                        |
  29 +------------------+--------------------------------------------------+
  30 | Sound IC         | Realtek ALC887                                   |
  31 +------------------+--------------------------------------------------+
  32 | Super I/O        | ITE 8603E                                        |
  33 +------------------+--------------------------------------------------+
  34 | VRM controller   | DIGI VRM ASP1106 (Rebranded RT8894A - SMBUS 0x20)|
  35 +------------------+--------------------------------------------------+
  36 ```
  37
  38 ```{eval-rst}
  39 +------------------+--------------------------------------------------+
  40 | F2A85-M LE       |                                                  |
  41 +------------------+--------------------------------------------------+
  42 | DDR voltage IC   | Nuvoton NCT3933U (AUX SMBUS 0x15 - unconfirmed)  |
  43 +------------------+--------------------------------------------------+
  44 | Network          | Realtek RTL8111F                                 |
  45 +------------------+--------------------------------------------------+
  46 | Northbridge      | Integrated into CPU with IMC and GPU(APUs only)  |
  47 +------------------+--------------------------------------------------+
  48 | Southbridge      | Hudson-D4                                        |
  49 +------------------+--------------------------------------------------+
  50 | Sound IC         | Realtek ALC887                                   |
  51 +------------------+--------------------------------------------------+
  52 | Super I/O        | ITE 8623E                                        |
  53 +------------------+--------------------------------------------------+
  54 | VRM controller   | DIGI VRM ASP1106 (Rebranded RT8894A - SMBUS 0x20)|
  55 +------------------+--------------------------------------------------+
  56 ```
  57
  58 ```{eval-rst}
  59 +------------------+--------------------------------------------------+
  60 | F2A85-M PRO      |                                                  |
  61 +------------------+--------------------------------------------------+
  62 | DDR voltage IC   | Nuvoton NCT3933U (?)                             |
  63 +------------------+--------------------------------------------------+
  64 | Network          | Realtek RTL8111F - Not working                   |
  65 +------------------+--------------------------------------------------+
  66 | Northbridge      | Integrated into CPU with IMC and GPU(APUs only)  |
  67 +------------------+--------------------------------------------------+
  68 | Southbridge      | Hudson-D4                                        |
  69 +------------------+--------------------------------------------------+
  70 | Sound IC         | Realtek ALC887                                   |
  71 +------------------+--------------------------------------------------+
  72 | Super I/O        | Nuvoton NCT6779D                                 |
  73 +------------------+--------------------------------------------------+
  74 | VRM controller   | DIGI VRM ASP1107                                 |
  75 +------------------+--------------------------------------------------+
  76 ```
  77
  78 ## Flashing coreboot
  79
  80 ```{eval-rst}
  81 +---------------------+------------+
  82 | Type                | Value      |
  83 +=====================+============+
  84 | Socketed flash      | yes        |
  85 +---------------------+------------+
  86 | Model               | W25Q64F    |
  87 +---------------------+------------+
  88 | Size                | 8 MiB      |
  89 +---------------------+------------+
  90 | Package             | DIP-8      |
  91 +---------------------+------------+
  92 | Write protection    | no         |
  93 +---------------------+------------+
  94 | Dual BIOS feature   | no         |
  95 +---------------------+------------+
  96 | Internal flashing   | yes        |
  97 +---------------------+------------+
  98 ```
  99
 100 ### Internal programming
 101
 102 The main SPI flash can be accessed using [flashrom].
 103 UEFI builds that allow flash chip access:
 104 > v5016 is untested, but expected to work as well
 105 > v5018
 106 > v5103
 107 > v5104
 108 > v5107
 109 > v5202
 110 > v6002
 111 > v6004
 112 > v6102
 113 > v6402
 114 > v6404 (requires downgrading to v6402 to flash coreboot)
 115 > v6501 (requires downgrading to v6402 to flash coreboot)
 116 > v6502 (requires downgrading to v6402 to flash coreboot)
 117
 118 Build v6502, v6501 and v6404 do not allow access to the flash chip.
 119 Fortunately it is possible to downgrade build v6502, v6501, v6404 to v6402, with EZFlash.
 120 Downgrading is done by downloading build v6402 from ASUS' F2A85-M download page
 121 and copying it to (the root directory of) a FAT32 formatted USB flash drive.
 122 Enter the EFI setup, switch to advanced mode if necessary,
 123 open the 'Tool' tab and select "ASUS EZ Flash 2 Utility".
 124
 125 ## Integrated graphics
 126
 127 ### Option 1: Retrieve the VGA optionrom from the vendor EFI binary by running:
 128
 129     # dd if=/dev/mem of=vgabios.bin bs=1k count=64 skip=768
 130
 131 ### Option 2: Extract from the vendor binary
 132
 133 Download the BIOS from the Support section at [ASUS F2A85-M].
 134 Using MMTool Aptio (versions 4.5.0 and 5.0.0):
 135 - Load image, click on 'Extract tab'
 136 - Select the 'export path' and 'link present' options
 137 - Choose option ROM '1002,9900' and click on 'Extract'
 138
 139 This version is usable for all the GPUs.
 140 > 1002,9901 Trinity (Radeon HD 7660D)
 141 > 1002,9904 Trinity (Radeon HD 7560D)
 142 > 1002,990c Richland (Radeon HD 8670D)
 143 > 1002,990e Richland (Radeon HD 8570D)
 144 > 1002,9991 Trinity (Radeon HD 7540D)
 145 > 1002,9993 Trinity (Radeon HD 7480D)
 146 > 1002,9996 Richland (Radeon HD 8470D)
 147 > 1002,9998 Richland (Radeon HD 8370D)
 148 > 1002,999d Richland (Radeon HD 8550D)
 149
 150 ## Known issues
 151
 152 - buggy USB 3.0 controller (works fine as 2.0 port)
 153 - reboot, poweroff, S3 suspend/resume (broken since 4.8.1)
 154
 155 ## Known issues (untested because of non-working ACPI sleep)
 156
 157 - blink in suspend mode (GP43, program LDN7 F8=23 and blink with F9=2 for 1s blinks)
 158 - fix immediate resume after suspend (perhaps PCIe STS needs to be cleared)
 159 - fix resume with USB3.0 used (perhaps there is a bug in resume.c)
 160
 161 ## Untested
 162
 163 - audio over HDMI
 164 - IOMMU
 165 - PS/2 mouse
 166
 167 ## TODOs
 168
 169 - manage to use one ATOMBIOS for all the integrated GPUs
 170
 171 ## Working
 172
 173 - ACPI
 174 - CPU frequency scaling
 175 - flashrom under coreboot
 176 - Gigabit Ethernet
 177 - Hardware monitor
 178 - Integrated graphics
 179 - KVM
 180 - Onboard audio
 181 - PCIe
 182 - PS/2 keyboard
 183 - SATA
 184 - Serial port
 185 - SuperIO based fan control
 186 - USB (XHCI is buggy)
 187
 188 ## Extra resources
 189
 190 - [Board manual]
 191 - Flash chip datasheet [W25Q64FV]
 192
 193 [ASUS F2A85-M]: https://web.archive.org/web/20160320065008/http://www.asus.com/Motherboards/F2A85M/
 194 [Board manual]: https://web.archive.org/web/20211028063105/https://dlcdnets.asus.com/pub/ASUS/mb/SocketFM2/F2A85-M/E8005_F2A85-M.pdf
 195 [flashrom]: https://flashrom.org/Flashrom
 196 [Piledriver]: https://en.wikipedia.org/wiki/Piledriver_%28microarchitecture%29#APU_lines
 197 [TeraScale 3]: https://en.wikipedia.org/wiki/TeraScale_%28microarchitecture%29#TeraScale_3
 198 [W25Q64FV]: https://web.archive.org/web/20220127184640/https://www.winbond.com/resource-files/w25q64fv%20revs%2007182017.pdf