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| -rw-r--r-- | README.md | 86 |
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@@ -10,20 +10,94 @@ do the same manually. As of time of writing, following devices are supported in coreboot. Other models might be supported in future. -* MacBook Pro 8,1 (13'' Early 2011) (`macbookpro8_1`) +* MacBook Pro 8,1 (13'' Early 2011) (`macbookpro8_1`)<br> * MacBook Pro 10,1 (15'' Mid 2012 Retina) (`macbookpro10_1`) + + **Attention!** Not all memory configurations are supported, see + [here](#ram-configurations).<br> + * MacBook Air 5,2 (13'' Mid 2012) (`macbookair5_2`) -* MacBook Air 4,2 (13'' Mid 2011) (`macbookair4_2`). - **Attention!** This model hasn't been tested by me, simply because - I don't have it. There were reports that it doesn't work, and by the nature of - those reports I suggest that coreboot port for MBA 4,2 is somehow broken. - Please don't try to use mmga on 4,2 until it's fixed or confirmed to work. + **Attention!** Not all memory configurations are supported, see + [here](#ram-configurations).<br> + +* MacBook Air 4,2 (13'' Mid 2011) (`macbookair4_2`). + + **Attention!** Not all memory configurations are supported, see + [here](#ram-configurations). iMac 13,1 is a candidate for support too, but [coreboot port](https://review.coreboot.org/c/coreboot/+/38883) for this device is not actively maintained at the moment and it may fail to build. I'll add iMac 13,1 support later when it's fixed. +### RAM configurations + +Models with soldered RAM are sold with different memory modules, manufactured by +different manufacturers. Not all of them are supported currently. + +To determine which memory you have in your MacBook, you can use `inteltool` +and [this script](https://github.com/gch1p/get_macbook_ramcfg). You need to run +them on the target machine. + +First, [download coreboot](#stage1) and build `inteltool`: +```console +$ cd util/inteltool +$ make -j4 +``` + +Download the script and make it executable. Then run: +```console +$ sudo ./inteltool -g | /path/to/get_macbook_ramcfg -m MODEL +``` + +Replace `MODEL` with your MacBook model: `mbp101` for MacBook Pro 10,1 or `mba52` +for MacBook Air 5,2 and MacBook Air 4,2. + +Then check the tables below. + +#### MacBook Pro 10,1 + +| RAM configuration | Supported | +| ------------------|-----------| +| 4g_hynix_1600s | 🚫 No | +| 1g_samsung_1600 | 🚫 No | +| 4g_samsung_1600s | 🚫 No | +| 1g_hynix_1600 | 🚫 No | +| 4g_elpida_1600s | 🚫 No | +| 2g_samsung_1600 | 🚫 No | +| 2g_samsung_1333 | 🚫 No | +| 2g_hynix_1600 | ✅ Yes | +| 4g_samsung_1600 | 🚫 No | +| 4g_hynix_1600 | ✅ Yes | +| 2g_elpida_1600s | 🚫 No | +| 2g_elpida_1600 | 🚫 No | +| 4g_elpida_1600 | 🚫 No | +| 2g_samsung_1600s | 🚫 No | +| 2g_hynix_1600s | 🚫 No | + +#### MacBook Air 5,2 + +| RAM configuration | Supported | +|-------------------|-----------| +| 4g_hynix | ✅ Yes | +| 8g_hynix | 🚫 No | +| 4g_samsung | 🚫 No | +| 8g_samsung | 🚫 No | +| 4g_elpida | 🚫 No | +| 8g_elpida | 🚫 No | + +#### MacBook Air 4,2 + +In progress. + +--- + +If your found out that your MacBook's memory is not supported, you can help +supporting it. Run `sudo inteltool -m`, save output to a text file and create a +new issue specifying your MacBook model, memory configuration name with the text +file attached. + + ### System requirements * Recent Linux distribution booted with `iomem=relaxed` kernel parameter |