diff options
Diffstat (limited to 'config/coreboot/default/patches/0039-fix-sata-ports-on-dell-9020-sff-and-mt.patch')
| -rw-r--r-- | config/coreboot/default/patches/0039-fix-sata-ports-on-dell-9020-sff-and-mt.patch | 66 |
1 files changed, 0 insertions, 66 deletions
diff --git a/config/coreboot/default/patches/0039-fix-sata-ports-on-dell-9020-sff-and-mt.patch b/config/coreboot/default/patches/0039-fix-sata-ports-on-dell-9020-sff-and-mt.patch deleted file mode 100644 index f4c3939c..00000000 --- a/config/coreboot/default/patches/0039-fix-sata-ports-on-dell-9020-sff-and-mt.patch +++ /dev/null @@ -1,66 +0,0 @@ -From 4889f08306f1530211dcc6f6a4e999c6cc72f3ac Mon Sep 17 00:00:00 2001 -From: Leah Rowe <info@minifree.org> -Date: Sat, 30 Mar 2024 05:57:54 +0000 -Subject: [PATCH 1/1] fix sata ports on dell 9020 sff and mt - -mate kukri has a patch under review on coreboot that sets -sata port map to 0x7 on sff and 0xf on mt. - -see: intel 8 series pch datasheet, section 13.1.35 - -basically, the 6 least significant bits enable the sata -slots; 1 for enable and 0 for disable. there can be up -to 6 ports. least significant bit is port 0, then next -is port 1, and so on. - -coreboot currently enables ports 0, 1, 4 and 5, making this -value 0x33 (converted to binary: 00110011). sff has ports -0, 1 and 2 wired, so mate changed that to 0x7 (00000111). - -on mt, the blue ports are ports 0 and 1, but the two white -ports don't work, but coreboot enables 4 and 5; it is -likely that the blue ports are in fact 0 and 1, and the -white ports are 2 and 3, but we've not tested this! - -it could be that the blue ports are ports 4 and 5, and -the white ports are 2 and 3! we have not yet determined -this, but mate set it to 0xf, meaning ports 0 1 2 and 3 -are enabled, in his patch under review. the chance that -it's 2, 3, 4 and 5 on the board is unlikely, but it is -theoretically possible and has not been confirmed. - -therefore, for now, i will set the value to 0x3f, which -in binary is 00111111, thus enabling all 6 slots. the two -that aren't physically wired don't really matter. enabling -ports (from the pch) that electrically aren't there and -then powering on is electrically equivalent to those ports -being actually being wired, but with no devices plugged -into them. therefore, 0x3f is an effective shotgun fix. - -i'll remove this patch and use mate's fix when the latter -has been tested on MT; it has already been tested on SFF. - -this patch fixes the 3rd sata slot on 9020 sff, and the 3rd -and 4th sata slots on 9020 MT - -Signed-off-by: Leah Rowe <info@minifree.org> ---- - src/mainboard/dell/optiplex_9020/devicetree.cb | 2 +- - 1 file changed, 1 insertion(+), 1 deletion(-) - -diff --git a/src/mainboard/dell/optiplex_9020/devicetree.cb b/src/mainboard/dell/optiplex_9020/devicetree.cb -index c0b17a15ff..7bfa6736a6 100644 ---- a/src/mainboard/dell/optiplex_9020/devicetree.cb -+++ b/src/mainboard/dell/optiplex_9020/devicetree.cb -@@ -23,7 +23,7 @@ chip northbridge/intel/haswell - register "gen2_dec" = "0x007c0901" - register "gen3_dec" = "0x003c07e1" - register "gen4_dec" = "0x001c0901" -- register "sata_port_map" = "0x33" -+ register "sata_port_map" = "0x3f" - - device pci 14.0 on end # xHCI controller - device pci 16.0 on end # Management Engine interface 1 --- -2.39.2 - |