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Date: Wed, 25 Feb 2015 15:20:33 +0000
From: Lee Jones <lee.jones@...aro.org>
To: micky_ching@...lsil.com.cn
Cc: sameo@...ux.intel.com, devel@...uxdriverproject.org,
linux-kernel@...r.kernel.org, gregkh@...uxfoundation.org,
rogerable@...ltek.com, wei_wang@...lsil.com.cn
Subject: Re: [PATCH v3 8/9] mfd: rtsx: add support for rts525A
On Wed, 25 Feb 2015, micky_ching@...lsil.com.cn wrote:
> From: Micky Ching <micky_ching@...lsil.com.cn>
>
> add support for new chip rts525A.
>
> Signed-off-by: Micky Ching <micky_ching@...lsil.com.cn>
> ---
> drivers/mfd/rts5249.c | 103 +++++++++++++++++++++++++++++++++++++++++++
> drivers/mfd/rtsx_pcr.c | 13 ++++--
> drivers/mfd/rtsx_pcr.h | 1 +
> include/linux/mfd/rtsx_pci.h | 15 +++++++
> 4 files changed, 129 insertions(+), 3 deletions(-)
Acked-by: Lee Jones <lee.jones@...aro.org>
> diff --git a/drivers/mfd/rts5249.c b/drivers/mfd/rts5249.c
> index 32be803..d1ff32f 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 e6d97ad..433cb41 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 e7daf6f..ce48842 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 754a18d..ff843e7 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
> #define PHY_REV_STOP_CLKWR 0x0004
> +#define _PHY_REV0 0x19
> +#define _PHY_REV0_FILTER_OUT 0x3800
> +#define _PHY_REV0_CDR_BYPASS_PFD 0x0100
> +#define _PHY_REV0_CDR_RX_IDLE_BYPASS 0x0002
>
> #define PHY_FLD0 0x1A
> #define PHY_ANA1A 0x1A
> @@ -800,6 +808,13 @@
> #define PHY_FLD3_RXDELINK 0x0004
> #define PHY_ANA1D 0x1D
> #define PHY_ANA1D_DEBUG_ADDR 0x0004
> +#define _PHY_FLD0 0x1D
> +#define _PHY_FLD0_CLK_REQ_20C 0x8000
> +#define _PHY_FLD0_RX_IDLE_EN 0x1000
> +#define _PHY_FLD0_BIT_ERR_RSTN 0x0800
> +#define _PHY_FLD0_BER_COUNT 0x01E0
> +#define _PHY_FLD0_BER_TIMER 0x001E
> +#define _PHY_FLD0_CHECK_EN 0x0001
>
> #define PHY_FLD4 0x1E
> #define PHY_FLD4_FLDEN_SEL 0x4000
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
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