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| author | Wei WANG <wei_wang@realsil.com.cn> | 2013-08-20 14:18:51 +0800 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2013-08-20 10:22:00 +0200 |
| commit | 773ccdfd9cc6f9bf8ec75a59fa742d7a663a5903 (patch) | |
| tree | 3e9ac1a210e718aaeb459dc8950666e928ca68b1 /drivers/mfd/rtsx_pcr.c | |
| parent | 74d85e47ab8a7cdeffde6373cf1550bfbd2feaa6 (diff) | |
| download | lwn-773ccdfd9cc6f9bf8ec75a59fa742d7a663a5903.tar.gz lwn-773ccdfd9cc6f9bf8ec75a59fa742d7a663a5903.zip | |
mfd: rtsx: Read vendor setting from config space
Normally OEMs will set vendor setting to the config space of Realtek
card reader in BIOS stage. This patch reads the setting at the first,
and configure the internal registers according to it, to improve card
reader's compatibility condition.
Signed-off-by: Wei WANG <wei_wang@realsil.com.cn>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/mfd/rtsx_pcr.c')
| -rw-r--r-- | drivers/mfd/rtsx_pcr.c | 26 |
1 files changed, 23 insertions, 3 deletions
diff --git a/drivers/mfd/rtsx_pcr.c b/drivers/mfd/rtsx_pcr.c index dd186c4103c1..e06d6b0d55f6 100644 --- a/drivers/mfd/rtsx_pcr.c +++ b/drivers/mfd/rtsx_pcr.c @@ -73,6 +73,9 @@ void rtsx_pci_start_run(struct rtsx_pcr *pcr) pcr->state = PDEV_STAT_RUN; if (pcr->ops->enable_auto_blink) pcr->ops->enable_auto_blink(pcr); + + if (pcr->aspm_en) + rtsx_pci_write_config_byte(pcr, LCTLR, 0); } mod_delayed_work(system_wq, &pcr->idle_work, msecs_to_jiffies(200)); @@ -717,7 +720,7 @@ int rtsx_pci_card_exclusive_check(struct rtsx_pcr *pcr, int card) [RTSX_MS_CARD] = MS_EXIST }; - if (!pcr->ms_pmos) { + if (!(pcr->flags & PCR_MS_PMOS)) { /* When using single PMOS, accessing card is not permitted * if the existing card is not the designated one. */ @@ -918,6 +921,9 @@ static void rtsx_pci_idle_work(struct work_struct *work) if (pcr->ops->turn_off_led) pcr->ops->turn_off_led(pcr); + if (pcr->aspm_en) + rtsx_pci_write_config_byte(pcr, LCTLR, pcr->aspm_en); + mutex_unlock(&pcr->pcr_mutex); } @@ -956,8 +962,8 @@ static int rtsx_pci_init_hw(struct rtsx_pcr *pcr) /* Reset delink mode */ rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CHANGE_LINK_STATE, 0x0A, 0); /* Card driving select */ - rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD30_DRIVE_SEL, - 0x07, DRIVER_TYPE_D); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_DRIVE_SEL, + 0xFF, pcr->card_drive_sel); /* Enable SSC Clock */ rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SSC_CTL1, 0xFF, SSC_8X_EN | SSC_SEL_4M); @@ -989,6 +995,8 @@ static int rtsx_pci_init_hw(struct rtsx_pcr *pcr) if (err < 0) return err; + rtsx_pci_write_config_byte(pcr, LCTLR, 0); + /* Enable clk_request_n to enable clock power management */ rtsx_pci_write_config_byte(pcr, 0x81, 1); /* Enter L1 when host tx idle */ @@ -1053,6 +1061,18 @@ static int rtsx_pci_init_chip(struct rtsx_pcr *pcr) if (!pcr->slots) return -ENOMEM; + if (pcr->ops->fetch_vendor_settings) + pcr->ops->fetch_vendor_settings(pcr); + + dev_dbg(&(pcr->pci->dev), "pcr->aspm_en = 0x%x\n", pcr->aspm_en); + dev_dbg(&(pcr->pci->dev), "pcr->sd30_drive_sel_1v8 = 0x%x\n", + pcr->sd30_drive_sel_1v8); + dev_dbg(&(pcr->pci->dev), "pcr->sd30_drive_sel_3v3 = 0x%x\n", + pcr->sd30_drive_sel_3v3); + dev_dbg(&(pcr->pci->dev), "pcr->card_drive_sel = 0x%x\n", + pcr->card_drive_sel); + dev_dbg(&(pcr->pci->dev), "pcr->flags = 0x%x\n", pcr->flags); + pcr->state = PDEV_STAT_IDLE; err = rtsx_pci_init_hw(pcr); if (err < 0) { |