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authorSayali Lokhande <sayalil@codeaurora.org>2017-02-28 17:27:57 +0530
committerSayali Lokhande <sayalil@codeaurora.org>2017-03-02 09:39:35 +0530
commitadad17d072d79ac826f377221a0a8f3c56aef8c1 (patch)
tree1b79ec5bfb7e2cfef2d830169feaad86ff0ac755 /include/linux/overflow.h
parent10a55a587418b3c37a57b4beae8337432b6ff3c0 (diff)
ARM: dts: msm: Update SDCC bus voting for SDM660
On SDM660, for sdcc there are two msm-bus paths: 1. AGGNOC->SNOC->BIMC 2. CPU->CNOC->SDC_CFG For SDCC DATA-FIFO or DPRAM, write clock is HCLK and read clock is MCLK for TX transactions and vice-versa for RX transactions. As both HCLK and MCLK are being used for data transfers ,we need to provide bus bandwidth vote from CPU(id:1) to SDC_CFG(id:606) which will be used for register access and data transfers. By default on sdm660, we observed cnoc_clk at only 19.2MHz which is very less and hence affecting eMMC performance (drop upto 50%) for read/writes. This change is updating bus voting from CPU to CNOC and helps improving eMMC performance. Change-Id: I9e3dadf307444be464a42f4a518b44e3f6e98a75 Signed-off-by: Sayali Lokhande <sayalil@codeaurora.org>
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