From mboxrd@z Thu Jan 1 00:00:00 1970 From: "ernest.zhang" Subject: [PATCH V7 2/5] mmc: sdhci: Change O2 Host HS200 mode clock frequency to 200MHz Date: Mon, 16 Jul 2018 14:26:52 +0800 Message-ID: <20180716062655.24703-2-ernest.zhang@bayhubtech.com> References: <20180716062655.24703-1-ernest.zhang@bayhubtech.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <20180716062655.24703-1-ernest.zhang@bayhubtech.com> Sender: linux-kernel-owner@vger.kernel.org To: Adrian Hunter , Ulf Hansson , linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org Cc: ernest.zhang@bayhubtech.com, chuanjin.pang@bayhubtech.com, mike.li@bayhubtech.com, chevron.li@bayhubtech.com, shirley.her@bayhubtech.com, xiaoguang.yu@bayhubtech.com, bobby.wu@bayhubtech.com List-Id: linux-mmc@vger.kernel.org O2 SD Host HS200 mode clock frequency current is 208MHz, should be changed to 200MHz to meet specification. Signed-off-by: ernest.zhang --- Change in V7: Change HS200 mode clock frequency from 208MHz to 200MHz to meet Specification. Change in V1~V6: N/A --- drivers/mmc/host/sdhci-pci-o2micro.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/mmc/host/sdhci-pci-o2micro.c b/drivers/mmc/host/sdhci-pci-o2micro.c index ba59db6a126c..94cf3cd75dd3 100644 --- a/drivers/mmc/host/sdhci-pci-o2micro.c +++ b/drivers/mmc/host/sdhci-pci-o2micro.c @@ -311,7 +311,7 @@ int sdhci_pci_o2_probe(struct sdhci_pci_chip *chip) /* Check Whether subId is 0x11 or 0x12 */ if ((scratch_32 == 0x11) || (scratch_32 == 0x12)) { - scratch_32 = 0x2c280000; + scratch_32 = 0x25100000; /* Set Base Clock to 208MZ */ o2_pci_set_baseclk(chip, scratch_32); @@ -406,7 +406,7 @@ int sdhci_pci_o2_probe(struct sdhci_pci_chip *chip) O2_SD_PLL_SETTING, scratch_32); } else { scratch_32 &= 0x0000FFFF; - scratch_32 |= 0x2c280000; + scratch_32 |= 0x25100000; pci_write_config_dword(chip->pdev, O2_SD_PLL_SETTING, scratch_32); -- 2.17.1