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[109.49.46.234]) by smtp.gmail.com with ESMTPSA id d5sm16293789wrv.43.2021.05.04.03.19.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 04 May 2021 03:19:58 -0700 (PDT) From: Rui Miguel Silva To: Greg Kroah-Hartman , Sebastian Siewior , Laurent Pinchart , Rob Herring Cc: linux-usb@vger.kernel.org, devicetree@vger.kernel.org, Rui Miguel Silva Subject: [PATCH 7/7] usb: isp1763: add peripheral mode Date: Tue, 4 May 2021 11:19:10 +0100 Message-Id: <20210504101910.18619-8-rui.silva@linaro.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210504101910.18619-1-rui.silva@linaro.org> References: <20210504101910.18619-1-rui.silva@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Besides the already host mode support add peripheral mode support for the isp1763 IP from the isp1760 family. Signed-off-by: Rui Miguel Silva --- drivers/usb/isp1760/isp1760-core.c | 34 +++++++++--- drivers/usb/isp1760/isp1760-regs.h | 87 ++++++++++++++++++++++++++++++ drivers/usb/isp1760/isp1760-udc.c | 3 +- 3 files changed, 115 insertions(+), 9 deletions(-) diff --git a/drivers/usb/isp1760/isp1760-core.c b/drivers/usb/isp1760/isp1760-core.c index 31de1064aa23..f9f77099b8ae 100644 --- a/drivers/usb/isp1760/isp1760-core.c +++ b/drivers/usb/isp1760/isp1760-core.c @@ -82,7 +82,8 @@ static int isp1760_init_core(struct isp1760_device *isp) * * TODO: Really support OTG. For now we configure port 1 in device mode */ - if ((isp->devflags & ISP1760_FLAG_ISP1761) && + if (((isp->devflags & ISP1760_FLAG_ISP1761) || + (isp->devflags & ISP1760_FLAG_ISP1763)) && (isp->devflags & ISP1760_FLAG_PERIPHERAL_EN)) { isp1760_field_set(hcd->fields, HW_DM_PULLDOWN); isp1760_field_set(hcd->fields, HW_DP_PULLDOWN); @@ -185,16 +186,28 @@ static struct regmap_config isp1761_dc_regmap_conf = { .volatile_table = &isp176x_dc_volatile_table, }; +static struct regmap_config isp1763_dc_regmap_conf = { + .name = "isp1763-dc", + .reg_bits = 8, + .reg_stride = 4, + .val_bits = 16, + .fast_io = true, + .max_register = ISP176x_DC_TESTMODE, + .volatile_table = &isp176x_dc_volatile_table, +}; + int isp1760_register(struct resource *mem, int irq, unsigned long irqflags, struct device *dev, unsigned int devflags) { - bool udc_disabled = !(devflags & ISP1760_FLAG_ISP1761); const struct regmap_config *hc_regmap; const struct reg_field *hc_reg_fields; + const struct regmap_config *dc_regmap; + const struct reg_field *dc_reg_fields; struct isp1760_device *isp; struct isp1760_hcd *hcd; struct isp1760_udc *udc; struct regmap_field *f; + bool udc_enabled; int ret; int i; @@ -202,8 +215,11 @@ int isp1760_register(struct resource *mem, int irq, unsigned long irqflags, * If neither the HCD not the UDC is enabled return an error, as no * device would be registered. */ + udc_enabled = ((devflags & ISP1760_FLAG_ISP1763) || + (devflags & ISP1760_FLAG_ISP1761)); + if ((!IS_ENABLED(CONFIG_USB_ISP1760_HCD) || usb_disabled()) && - (!IS_ENABLED(CONFIG_USB_ISP1761_UDC) || udc_disabled)) + (!IS_ENABLED(CONFIG_USB_ISP1761_UDC) || !udc_enabled)) return -ENODEV; isp = devm_kzalloc(dev, sizeof(*isp), GFP_KERNEL); @@ -233,9 +249,13 @@ int isp1760_register(struct resource *mem, int irq, unsigned long irqflags, if (hcd->is_isp1763) { hc_regmap = &isp1763_hc_regmap_conf; hc_reg_fields = &isp1763_hc_reg_fields[0]; + dc_regmap = &isp1763_dc_regmap_conf; + dc_reg_fields = &isp1763_dc_reg_fields[0]; } else { hc_regmap = &isp1760_hc_regmap_conf; hc_reg_fields = &isp1760_hc_reg_fields[0]; + dc_regmap = &isp1761_dc_regmap_conf; + dc_reg_fields = &isp1761_dc_reg_fields[0]; } isp->rst_gpio = devm_gpiod_get_optional(dev, NULL, GPIOD_OUT_HIGH); @@ -258,14 +278,12 @@ int isp1760_register(struct resource *mem, int irq, unsigned long irqflags, hcd->fields[i] = f; } - udc->regs = devm_regmap_init_mmio(dev, hcd->base, - &isp1761_dc_regmap_conf); + udc->regs = devm_regmap_init_mmio(dev, hcd->base, dc_regmap); if (IS_ERR(udc->regs)) return PTR_ERR(udc->regs); for (i = 0; i < DC_FIELD_MAX; i++) { - f = devm_regmap_field_alloc(dev, udc->regs, - isp1761_dc_reg_fields[i]); + f = devm_regmap_field_alloc(dev, udc->regs, dc_reg_fields[i]); if (IS_ERR(f)) return PTR_ERR(f); @@ -288,7 +306,7 @@ int isp1760_register(struct resource *mem, int irq, unsigned long irqflags, return ret; } - if (IS_ENABLED(CONFIG_USB_ISP1761_UDC) && !udc_disabled) { + if (IS_ENABLED(CONFIG_USB_ISP1761_UDC) && udc_enabled) { ret = isp1760_udc_register(isp, irq, irqflags); if (ret < 0) { isp1760_hcd_unregister(hcd); diff --git a/drivers/usb/isp1760/isp1760-regs.h b/drivers/usb/isp1760/isp1760-regs.h index c98466f66cb6..a66f77edb814 100644 --- a/drivers/usb/isp1760/isp1760-regs.h +++ b/drivers/usb/isp1760/isp1760-regs.h @@ -465,4 +465,91 @@ static const struct reg_field isp1761_dc_reg_fields[] = { [DC_FRAMENUM] = REG_FIELD(ISP176x_DC_FRAMENUM, 0, 10), }; +/* ISP1763 */ +/* Initialization Registers */ +#define ISP1763_DC_ADDRESS 0x00 +#define ISP1763_DC_MODE 0x0c +#define ISP1763_DC_INTCONF 0x10 +#define ISP1763_DC_INTENABLE 0x14 + +/* Data Flow Registers */ +#define ISP1763_DC_EPMAXPKTSZ 0x04 +#define ISP1763_DC_EPTYPE 0x08 + +#define ISP1763_DC_BUFLEN 0x1c +#define ISP1763_DC_BUFSTAT 0x1e +#define ISP1763_DC_DATAPORT 0x20 + +#define ISP1763_DC_CTRLFUNC 0x28 +#define ISP1763_DC_EPINDEX 0x2c + +/* DMA Registers */ +#define ISP1763_DC_DMACMD 0x30 +#define ISP1763_DC_DMATXCOUNT 0x34 +#define ISP1763_DC_DMACONF 0x38 +#define ISP1763_DC_DMAHW 0x3c +#define ISP1763_DC_DMAINTREASON 0x50 +#define ISP1763_DC_DMAINTEN 0x54 +#define ISP1763_DC_DMAEP 0x58 +#define ISP1763_DC_DMABURSTCOUNT 0x64 + +/* General Registers */ +#define ISP1763_DC_INTERRUPT 0x18 +#define ISP1763_DC_CHIPID 0x70 +#define ISP1763_DC_FRAMENUM 0x74 +#define ISP1763_DC_SCRATCH 0x78 +#define ISP1763_DC_UNLOCKDEV 0x7c +#define ISP1763_DC_INTPULSEWIDTH 0x80 +#define ISP1763_DC_TESTMODE 0x84 + +static const struct regmap_range isp1763_dc_volatile_ranges[] = { + regmap_reg_range(ISP1763_DC_EPMAXPKTSZ, ISP1763_DC_EPTYPE), + regmap_reg_range(ISP1763_DC_BUFLEN, ISP1763_DC_EPINDEX), +}; + +static const struct regmap_access_table isp1763_dc_volatile_table = { + .yes_ranges = isp1763_dc_volatile_ranges, + .n_yes_ranges = ARRAY_SIZE(isp1763_dc_volatile_ranges), +}; + +static const struct reg_field isp1763_dc_reg_fields[] = { + [DC_DEVEN] = REG_FIELD(ISP1763_DC_ADDRESS, 7, 7), + [DC_DEVADDR] = REG_FIELD(ISP1763_DC_ADDRESS, 0, 6), + [DC_VBUSSTAT] = REG_FIELD(ISP1763_DC_MODE, 8, 8), + [DC_SFRESET] = REG_FIELD(ISP1763_DC_MODE, 4, 4), + [DC_GLINTENA] = REG_FIELD(ISP1763_DC_MODE, 3, 3), + [DC_CDBGMOD_ACK] = REG_FIELD(ISP1763_DC_INTCONF, 6, 6), + [DC_DDBGMODIN_ACK] = REG_FIELD(ISP1763_DC_INTCONF, 4, 4), + [DC_DDBGMODOUT_ACK] = REG_FIELD(ISP1763_DC_INTCONF, 2, 2), + [DC_INTPOL] = REG_FIELD(ISP1763_DC_INTCONF, 0, 0), + [DC_IEPRXTX_7] = REG_FIELD(ISP1763_DC_INTENABLE, 25, 25), + [DC_IEPRXTX_6] = REG_FIELD(ISP1763_DC_INTENABLE, 23, 23), + [DC_IEPRXTX_5] = REG_FIELD(ISP1763_DC_INTENABLE, 21, 21), + [DC_IEPRXTX_4] = REG_FIELD(ISP1763_DC_INTENABLE, 19, 19), + [DC_IEPRXTX_3] = REG_FIELD(ISP1763_DC_INTENABLE, 17, 17), + [DC_IEPRXTX_2] = REG_FIELD(ISP1763_DC_INTENABLE, 15, 15), + [DC_IEPRXTX_1] = REG_FIELD(ISP1763_DC_INTENABLE, 13, 13), + [DC_IEPRXTX_0] = REG_FIELD(ISP1763_DC_INTENABLE, 11, 11), + [DC_IEP0SETUP] = REG_FIELD(ISP1763_DC_INTENABLE, 8, 8), + [DC_IEVBUS] = REG_FIELD(ISP1763_DC_INTENABLE, 7, 7), + [DC_IEHS_STA] = REG_FIELD(ISP1763_DC_INTENABLE, 5, 5), + [DC_IERESM] = REG_FIELD(ISP1763_DC_INTENABLE, 4, 4), + [DC_IESUSP] = REG_FIELD(ISP1763_DC_INTENABLE, 3, 3), + [DC_IEBRST] = REG_FIELD(ISP1763_DC_INTENABLE, 0, 0), + [DC_EP0SETUP] = REG_FIELD(ISP1763_DC_EPINDEX, 5, 5), + [DC_ENDPIDX] = REG_FIELD(ISP1763_DC_EPINDEX, 1, 4), + [DC_EPDIR] = REG_FIELD(ISP1763_DC_EPINDEX, 0, 0), + [DC_CLBUF] = REG_FIELD(ISP1763_DC_CTRLFUNC, 4, 4), + [DC_VENDP] = REG_FIELD(ISP1763_DC_CTRLFUNC, 3, 3), + [DC_DSEN] = REG_FIELD(ISP1763_DC_CTRLFUNC, 2, 2), + [DC_STATUS] = REG_FIELD(ISP1763_DC_CTRLFUNC, 1, 1), + [DC_STALL] = REG_FIELD(ISP1763_DC_CTRLFUNC, 0, 0), + [DC_BUFLEN] = REG_FIELD(ISP1763_DC_BUFLEN, 0, 15), + [DC_FFOSZ] = REG_FIELD(ISP1763_DC_EPMAXPKTSZ, 0, 10), + [DC_EPENABLE] = REG_FIELD(ISP1763_DC_EPTYPE, 3, 3), + [DC_ENDPTYP] = REG_FIELD(ISP1763_DC_EPTYPE, 0, 1), + [DC_UFRAMENUM] = REG_FIELD(ISP1763_DC_FRAMENUM, 11, 13), + [DC_FRAMENUM] = REG_FIELD(ISP1763_DC_FRAMENUM, 0, 10), +}; + #endif diff --git a/drivers/usb/isp1760/isp1760-udc.c b/drivers/usb/isp1760/isp1760-udc.c index 980d51bff65e..1eff029c4158 100644 --- a/drivers/usb/isp1760/isp1760-udc.c +++ b/drivers/usb/isp1760/isp1760-udc.c @@ -1503,7 +1503,8 @@ static int isp1760_udc_init(struct isp1760_udc *udc) return -ENODEV; } - if (chipid != 0x00011582 && chipid != 0x00158210) { + if (chipid != 0x00011582 && chipid != 0x00158210 && + chipid != 0x00006320) { dev_err(udc->isp->dev, "udc: invalid chip ID 0x%08x\n", chipid); return -ENODEV; } -- 2.31.1