Hi Seungwon.
Seungwon Jeon wrote:
> Hi Jaehoon Chung,
>
>> @@ -762,6 +773,23 @@ static int mmc_init_card(struct mmc_host *host, u32
>> ocr,
>> }
>>
>> /*
>> + * Enable HPI feature (if supported)
>> + */
>> + if (card->ext_csd.hpi) {
>> + err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
>> + EXT_CSD_HPI_MGMT, 1, 0);
>> + if (err && err != -EBADMSG)
>> + goto free_card;
>> +
>> + if (err) {
>> + printk(KERN_WARNING "%s: Enabling HPI failed\n",
>> + mmc_hostname(card->host));
>> + err = 0;
>> + } else
>> + card->ext_csd.hpi_en = 1;
>> + }
>> +
> There is no code for enabling BKOPS_EN?
> If host want to handle background operation manually, it needs.
Sorry, this code is my mistake...maybe duplicated the HPI patch..
You means maybe need this code..
/*
+ * Enable BKOPS feature (if supported)
+ */
+ if (card->ext_csd.bkops != NULL) {
+ /*
+ * If card supported BKOPS, default set BKOPS_EN bit.
+ * But ensure to enable bkops, need to check enable bit
+ */
+ if (!card->ext_csd.bkops_en) {
+ err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
+ EXT_CSD_BKOPS_EN, 1, 0);
+ if (err && err != -EBADMSG)
+ goto free_card;
+
+ if (err) {
+ printk(KERN_ERR "%s: Enabling BKOPS failed\n",
+ mmc_hostname(card->host));
+ err = 0;
+ } else
+ card->ext_csd.bkops_en = 1;
+ }
+ }
+
I will resend the RFC patch..
Thank you for comment.
Best Regards,
Jaehoon Chung
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