Re: [U-Boot] [PATCH 1/3] Revert "blk: Invalidate block cache when switching hwpart"

On 27.08.19 09:32, Weijie Gao wrote:

This reverts commit 0ebe112d09b48230ba4be833cd3504b06997d9a4.

Most block devices have only one hwpart. Multiple hwparts only found used by eMMC devices in u-boot. The mmc driver do blk_dselect_hwpart() at the beginning of mmc_bread() which causes block cache being invalidated too frequently and makes block cache useless.

So it's not a good idea to put blkcache_invalidate() in the common functions. It should be called inside mmc_select_hwpart().

Signed-off-by: Weijie Gao weijie.gao@mediatek.com

For the PDU001 board:

Tested-by: Felix Brack fb@ltec.ch

regards, Felix