mfd: rtsx: Add support for rts525A

Add support for new chip rts525A.

Signed-off-by: Micky Ching <micky_ching@realsil.com.cn>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

4 files changed, 129 insertions, 3 deletions

diff --git a/drivers/mfd/rts5249.c b/drivers/mfd/rts5249.c
index 32be803b5327..d1ff32f742ba 100644
--- a/drivers/mfd/rts5249.c
+++ b/drivers/mfd/rts5249.c
@@ -487,3 +487,106 @@ void rts524a_init_params(struct rtsx_pcr *pcr)
         pcr->ops = &rts524a_pcr_ops;
 }
 
+static int rts525a_card_power_on(struct rtsx_pcr *pcr, int card)
+{
+        rtsx_pci_write_register(pcr, LDO_VCC_CFG1,
+                LDO_VCC_TUNE_MASK, LDO_VCC_3V3);
+        return rtsx_base_card_power_on(pcr, card);
+}
+
+static int rts525a_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage)
+{
+        switch (voltage) {
+        case OUTPUT_3V3:
+                rtsx_pci_write_register(pcr, LDO_CONFIG2,
+                        LDO_D3318_MASK, LDO_D3318_33V);
+                rtsx_pci_write_register(pcr, SD_PAD_CTL, SD_IO_USING_1V8, 0);
+                break;
+        case OUTPUT_1V8:
+                rtsx_pci_write_register(pcr, LDO_CONFIG2,
+                        LDO_D3318_MASK, LDO_D3318_18V);
+                rtsx_pci_write_register(pcr, SD_PAD_CTL, SD_IO_USING_1V8,
+                        SD_IO_USING_1V8);
+                break;
+        default:
+                return -EINVAL;
+        }
+
+        rtsx_pci_init_cmd(pcr);
+        rts5249_fill_driving(pcr, voltage);
+        return rtsx_pci_send_cmd(pcr, 100);
+}
+
+static int rts525a_optimize_phy(struct rtsx_pcr *pcr)
+{
+        int err;
+
+        err = rtsx_pci_write_register(pcr, RTS524A_PM_CTRL3,
+                D3_DELINK_MODE_EN, 0x00);
+        if (err < 0)
+                return err;
+
+        rtsx_pci_write_phy_register(pcr, _PHY_FLD0,
+                _PHY_FLD0_CLK_REQ_20C | _PHY_FLD0_RX_IDLE_EN |
+                _PHY_FLD0_BIT_ERR_RSTN | _PHY_FLD0_BER_COUNT |
+                _PHY_FLD0_BER_TIMER | _PHY_FLD0_CHECK_EN);
+
+        rtsx_pci_write_phy_register(pcr, _PHY_ANA03,
+                _PHY_ANA03_TIMER_MAX | _PHY_ANA03_OOBS_DEB_EN |
+                _PHY_CMU_DEBUG_EN);
+
+        if (is_version(pcr, 0x525A, IC_VER_A))
+                rtsx_pci_write_phy_register(pcr, _PHY_REV0,
+                        _PHY_REV0_FILTER_OUT | _PHY_REV0_CDR_BYPASS_PFD |
+                        _PHY_REV0_CDR_RX_IDLE_BYPASS);
+
+        return 0;
+}
+
+static int rts525a_extra_init_hw(struct rtsx_pcr *pcr)
+{
+        rts5249_extra_init_hw(pcr);
+
+        rtsx_pci_write_register(pcr, PCLK_CTL, PCLK_MODE_SEL, PCLK_MODE_SEL);
+        if (is_version(pcr, 0x525A, IC_VER_A)) {
+                rtsx_pci_write_register(pcr, L1SUB_CONFIG2,
+                        L1SUB_AUTO_CFG, L1SUB_AUTO_CFG);
+                rtsx_pci_write_register(pcr, RREF_CFG,
+                        RREF_VBGSEL_MASK, RREF_VBGSEL_1V25);
+                rtsx_pci_write_register(pcr, LDO_VIO_CFG,
+                        LDO_VIO_TUNE_MASK, LDO_VIO_1V7);
+                rtsx_pci_write_register(pcr, LDO_DV12S_CFG,
+                        LDO_D12_TUNE_MASK, LDO_D12_TUNE_DF);
+                rtsx_pci_write_register(pcr, LDO_AV12S_CFG,
+                        LDO_AV12S_TUNE_MASK, LDO_AV12S_TUNE_DF);
+                rtsx_pci_write_register(pcr, LDO_VCC_CFG0,
+                        LDO_VCC_LMTVTH_MASK, LDO_VCC_LMTVTH_2A);
+                rtsx_pci_write_register(pcr, OOBS_CONFIG,
+                        OOBS_AUTOK_DIS | OOBS_VAL_MASK, 0x89);
+        }
+
+        return 0;
+}
+
+static const struct pcr_ops rts525a_pcr_ops = {
+        .fetch_vendor_settings = rtsx_base_fetch_vendor_settings,
+        .extra_init_hw = rts525a_extra_init_hw,
+        .optimize_phy = rts525a_optimize_phy,
+        .turn_on_led = rtsx_base_turn_on_led,
+        .turn_off_led = rtsx_base_turn_off_led,
+        .enable_auto_blink = rtsx_base_enable_auto_blink,
+        .disable_auto_blink = rtsx_base_disable_auto_blink,
+        .card_power_on = rts525a_card_power_on,
+        .card_power_off = rtsx_base_card_power_off,
+        .switch_output_voltage = rts525a_switch_output_voltage,
+        .force_power_down = rtsx_base_force_power_down,
+};
+
+void rts525a_init_params(struct rtsx_pcr *pcr)
+{
+        rts5249_init_params(pcr);
+
+        pcr->reg_pm_ctrl3 = RTS524A_PM_CTRL3;
+        pcr->ops = &rts525a_pcr_ops;
+}
+
diff --git a/drivers/mfd/rtsx_pcr.c b/drivers/mfd/rtsx_pcr.c
index e6d97adcc825..433cb41cf556 100644
--- a/drivers/mfd/rtsx_pcr.c
+++ b/drivers/mfd/rtsx_pcr.c
@@ -59,6 +59,7 @@ static const struct pci_device_id rtsx_pci_ids[] = {
         { PCI_DEVICE(0x10EC, 0x5287), PCI_CLASS_OTHERS << 16, 0xFF0000 },
         { PCI_DEVICE(0x10EC, 0x5286), PCI_CLASS_OTHERS << 16, 0xFF0000 },
         { PCI_DEVICE(0x10EC, 0x524A), PCI_CLASS_OTHERS << 16, 0xFF0000 },
+        { PCI_DEVICE(0x10EC, 0x525A), PCI_CLASS_OTHERS << 16, 0xFF0000 },
         { 0, }
 };
 
@@ -1114,6 +1115,10 @@ static int rtsx_pci_init_chip(struct rtsx_pcr *pcr)
                 rts524a_init_params(pcr);
                 break;
 
+        case 0x525A:
+                rts525a_init_params(pcr);
+                break;
+
         case 0x5287:
                 rtl8411b_init_params(pcr);
                 break;
@@ -1159,7 +1164,7 @@ static int rtsx_pci_probe(struct pci_dev *pcidev,
         struct rtsx_pcr *pcr;
         struct pcr_handle *handle;
         u32 base, len;
-        int ret, i;
+        int ret, i, bar = 0;
 
         dev_dbg(&(pcidev->dev),
                 ": Realtek PCI-E Card Reader found at %s [%04x:%04x] (rev %x)\n",
@@ -1204,8 +1209,10 @@ static int rtsx_pci_probe(struct pci_dev *pcidev,
         pcr->pci = pcidev;
         dev_set_drvdata(&pcidev->dev, handle);
 
-        len = pci_resource_len(pcidev, 0);
-        base = pci_resource_start(pcidev, 0);
+        if (CHK_PCI_PID(pcr, 0x525A))
+                bar = 1;
+        len = pci_resource_len(pcidev, bar);
+        base = pci_resource_start(pcidev, bar);
         pcr->remap_addr = ioremap_nocache(base, len);
         if (!pcr->remap_addr) {
                 ret = -ENOMEM;
diff --git a/drivers/mfd/rtsx_pcr.h b/drivers/mfd/rtsx_pcr.h
index e7daf6f54b83..ce48842570d7 100644
--- a/drivers/mfd/rtsx_pcr.h
+++ b/drivers/mfd/rtsx_pcr.h
@@ -40,6 +40,7 @@ void rtl8402_init_params(struct rtsx_pcr *pcr);
 void rts5227_init_params(struct rtsx_pcr *pcr);
 void rts5249_init_params(struct rtsx_pcr *pcr);
 void rts524a_init_params(struct rtsx_pcr *pcr);
+void rts525a_init_params(struct rtsx_pcr *pcr);
 void rtl8411b_init_params(struct rtsx_pcr *pcr);
 
 static inline u8 map_sd_drive(int idx)
diff --git a/include/linux/mfd/rtsx_pci.h b/include/linux/mfd/rtsx_pci.h
index 754a18d4203a..ff843e7ca23d 100644
--- a/include/linux/mfd/rtsx_pci.h
+++ b/include/linux/mfd/rtsx_pci.h
@@ -727,6 +727,10 @@
 #define PHY_SSCCR3                      0x03
 #define   PHY_SSCCR3_STEP_IN            0x2740
 #define   PHY_SSCCR3_CHECK_DELAY        0x0008
+#define _PHY_ANA03                      0x03
+#define   _PHY_ANA03_TIMER_MAX          0x2700
+#define   _PHY_ANA03_OOBS_DEB_EN        0x0040
+#define   _PHY_CMU_DEBUG_EN             0x0008
 
 #define PHY_RTCR                        0x04
 #define PHY_RDR                         0x05
@@ -785,6 +789,10 @@
 #define   PHY_REV_STOP_CLKRD            0x0020
 #define   PHY_REV_RX_PWST               0x0008