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path: root/arch/x86/include/asm/mrccache.h
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* x86: Use struct mrc_region to describe a mrc regionBin Meng2015-10-21-4/+9
| | | | | | | | | | | | | | | | Currently struct fmap_entry is used to describe a mrc region. However this structure contains some other fields that are not related to mrc cache and causes confusion. Besides, it does not include a base address field to store SPI flash's base address. Instead in the mrccache.c it tries to use CONFIG_ROM_SIZE to calculate the SPI flash base address, which unfortunately is not 100% correct as CONFIG_ROM_SIZE may not match the whole SPI flash size. Define a new struct mrc_region and use it instead. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
* x86: Add more common routines to manipulate mrc cacheBin Meng2015-10-21-0/+51
| | | | | | | | | | | | | | This adds mrccache_reserve(), mrccache_get_region() and mrccache_save() APIs to the mrccache codes. They are ported from the ivybridge implementation, but with some changes. For example, in the mrccache_reserve(), ivybridge version only reserves the pure MRC data, which causes additional malloc() when saving the cache as the save API needs some meta data. Now we change it to save the whole MRC date plus the meta data to elinimate the need for the malloc() later. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
* x86: Add various minor tidy-ups in mrccache codesBin Meng2015-10-21-10/+10
| | | | | | | | Fix some nits, improve some comments and reorder some codes a little bit. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
* x86: Do sanity test on the cache record in mrccache_update()Bin Meng2015-10-21-1/+1
| | | | | | | | For the cache record to write in mrccache_update(), we should perform a sanity test to see if it is a valid one. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
* x86: Move mrccache.[c|h] to a common placeBin Meng2015-10-21-0/+51
mrccache implementation can be common for all boards. Move it from ivybridge cpu directory to the common lib directory. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>