O2 SD Host HS200 mode clock frequency current is 208MHz, should be changed to
200MHz to meet specification.
Signed-off-by: ernest.zhang <ernest.zh...@bayhubtech.com>
---
Change in V8:
The set base clock code comment has been changed in accordance with
code change in V7.
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 | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/mmc/host/sdhci-pci-o2micro.c
b/drivers/mmc/host/sdhci-pci-o2micro.c
index ba59db6a126c..9e7bacda4717 100644
--- a/drivers/mmc/host/sdhci-pci-o2micro.c
+++ b/drivers/mmc/host/sdhci-pci-o2micro.c
@@ -311,9 +311,9 @@ 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 */
+ /* Set Base Clock to 200MZ */
o2_pci_set_baseclk(chip, scratch_32);
ret = pci_read_config_dword(chip->pdev,
O2_SD_FUNC_REG4,
@@ -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
-----邮件原件-----
发件人: Adrian Hunter <adrian.hun...@intel.com>
发送时间: Friday, July 27, 2018 2:58 PM
收件人: Ernest Zhang(WH) <ernest.zh...@bayhubtech.com>; Ulf Hansson
<ulf.hans...@linaro.org>; linux-...@vger.kernel.org;
linux-kernel@vger.kernel.org
抄送: Chuanjin Pang (WH) <chuanjin.p...@bayhubtech.com>; Mike Li (WH)
<mike...@bayhubtech.com>; Chevron Li (WH) <chevron...@bayhubtech.com>; Shirley
Her (SC) <shirley....@bayhubtech.com>; Xiaoguang Yu (WH)
<xiaoguang...@bayhubtech.com>; Bobby Wu (WH) <bobby...@bayhubtech.com>
主题: Re: [PATCH V7 2/5] mmc: sdhci: Change O2 Host HS200 mode clock frequency to
200MHz
On 27/07/18 09:49, Ernest Zhang(WH) wrote:
> Hi Adrian,
> Do I need re-submit all 5 patches after fix that and change the version
> to v8?
You can reply to this email with PATCH V8 2/5 that has my Ack and the comment
fixed.
> BR
>
> -----Original Message-----
> From: Adrian Hunter [mailto:adrian.hun...@intel.com]
> Sent: 2018年7月25日 15:45
> To: Ernest Zhang(WH); Ulf Hansson; linux-...@vger.kernel.org;
> linux-kernel@vger.kernel.org
> Cc: Chuanjin Pang (WH); Mike Li (WH); Chevron Li (WH); Shirley Her
> (SC); Xiaoguang Yu (WH); Bobby Wu (WH)
> Subject: Re: [PATCH V7 2/5] mmc: sdhci: Change O2 Host HS200 mode
> clock frequency to 200MHz
>
> On 16/07/18 09:26, ernest.zhang wrote:
>> O2 SD Host HS200 mode clock frequency current is 208MHz, should be
>> changed to 200MHz to meet specification.
>>
>> Signed-off-by: ernest.zhang <ernest.zh...@bayhubtech.com>
>
> You left in the misleading comment. Fix that and add:
>
> Acked-by: Adrian Hunter <adrian.hun...@intel.com>
>
>> ---
>> 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 */
>
> That comment is misleading now.
>
>> 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);
>>
>
