Add driver for RTL8153b based USB network dongles.

BUG=b:70655060
TEST=Booted into the netboot payload using image.dev.bin ctrl-n, using
     Servo v4 as network dongle.
BRANCH=none

Change-Id: Iab42412789e3db0d0ba47d11344546a4a33bd108
Signed-off-by: Pi-Hsun Shih <pihsun@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1006566

Reviewed-by: Julius Werner <jwerner@chromium.org>

src/drivers/net/r8152.c

@@ -128,6 +128,28 @@ static int ocp_write_dword(usbdev_t *dev, uint16_t type, uint16_t index,
 	return ocp_write(dev, index, ByteEnDword, sizeof(val), &val, type);
 }
 
+static int ocp_dword_clrsetbits(usbdev_t *dev, uint16_t type, uint16_t index,
+				uint32_t clr_mask, uint32_t set_mask)
+{
+	uint32_t data;
+	if (ocp_read_dword(dev, type, index, &data))
+		return 1;
+	data = (data & ~clr_mask) | set_mask;
+	return ocp_write_dword(dev, type, index, data);
+}
+
+static int ocp_dword_setbits(usbdev_t *dev, uint16_t type, uint16_t index,
+			     uint32_t set_mask)
+{
+	return ocp_dword_clrsetbits(dev, type, index, 0, set_mask);
+}
+
+static int ocp_dword_clearbits(usbdev_t *dev, uint16_t type, uint16_t index,
+			       uint32_t clr_mask)
+{
+	return ocp_dword_clrsetbits(dev, type, index, clr_mask, 0);
+}
+
 static int ocp_read_word(usbdev_t *dev, uint16_t type, uint16_t index,
 			 uint16_t *val)
 {
@@ -456,16 +478,12 @@ static int r8153_hw_phy_cfg(usbdev_t *dev)
 
 static int r8153_set_rx_mode(usbdev_t *dev)
 {
-	uint32_t data;
 	uint32_t tmp[2] = { 0xffffffff, 0xffffffff };
 
 	if (ocp_write(dev, PlaMar, ByteEnDword, sizeof(tmp), tmp, McuTypePla))
 		return 1;
 
-	if (ocp_read_dword(dev, McuTypePla, PlaRcr, &data))
-		return 1;
-	data |= RcrAb | RcrApm | RcrAm;
-	if (ocp_write_dword(dev, McuTypePla, PlaRcr, data))
+	if (ocp_dword_setbits(dev, McuTypePla, PlaRcr, RcrAb | RcrApm | RcrAm))
 		return 1;
 
 	return 0;
@@ -600,6 +618,135 @@ static int r8153_init(usbdev_t *dev)
 	return 0;
 }
 
+static int r8153b_power_cut_disable(usbdev_t *dev)
+{
+	if (ocp_word_clearbits(dev, McuTypeUsb, UsbPowerCut, PwrEn))
+		return 1;
+
+	if (ocp_word_clearbits(dev, McuTypeUsb, UsbMisc0, PcutStatus))
+		return 1;
+
+	return 0;
+}
+
+static int r8153b_ups_disable(usbdev_t *dev)
+{
+	if (ocp_byte_clearbits(dev, McuTypeUsb, UsbPowerCut,
+			       UpsEn | UpsPrewake))
+		return 1;
+
+	if (ocp_byte_clearbits(dev, McuTypeUsb, 0xcfff, 1 << 0))
+		return 1;
+
+	if (ocp_byte_clearbits(dev, McuTypeUsb, UsbMisc0, PcutStatus))
+		return 1;
+
+	return 0;
+}
+
+static int r8153b_queue_wake_disable(usbdev_t *dev)
+{
+	if (ocp_byte_clearbits(dev, McuTypePla, 0xd38a, 1 << 0))
+		return 1;
+
+	if (ocp_byte_clearbits(dev, McuTypePla, 0xd38c, 1 << 0))
+		return 1;
+
+	return 0;
+}
+
+static int rtl_runtime_suspend_disable(usbdev_t *dev)
+{
+	if (ocp_write_byte(dev, McuTypePla, PlaCrwecr, CrwecrConfig))
+		return 1;
+
+	if (ocp_word_clearbits(dev, McuTypePla, PlaConfig34, LinkOffWakeEn))
+		return 1;
+
+	if (ocp_write_byte(dev, McuTypePla, PlaCrwecr, CrwecrNormal))
+		return 1;
+
+	return 0;
+}
+
+static int r8153b_eee_disable(usbdev_t *dev)
+{
+	if (r8153_eee_disable(dev))
+		return 1;
+
+	if (ocp_dword_clearbits(dev, McuTypeUsb, UsbUpsFlags, UpsFlagsEnEee))
+		return 1;
+
+	return 0;
+}
+
+static int r8153b_hw_phy_cfg(usbdev_t *dev)
+{
+	if (r8153b_eee_disable(dev))
+		return 1;
+
+	if (ocp_reg_write(dev, OcpEeeAdv, 0))
+		return 1;
+
+	if (ocp_reg_setbits(dev, OcpNctlCfg, PgaReturnEn))
+		return 1;
+
+	if (ocp_word_setbits(dev, McuTypePla, PlaPhyPwr, PfmPwmSwitch))
+		return 1;
+
+	return 0;
+}
+
+static int r8153b_init(usbdev_t *dev)
+{
+	uint16_t data;
+
+	if (r8153_wait_autoload_done(dev))
+		return 1;
+
+	if (r8153_wait_for_phy_status(dev, 0))
+		return 1;
+
+	if (r8152_mdio_read(dev, MiiBmcr, &data))
+		return 1;
+	data &= ~BmcrPowerDown;
+	if (r8152_mdio_write(dev, MiiBmcr, data))
+		return 1;
+
+	if (r8153_wait_for_phy_status(dev, PhyStatLanOn))
+		return 1;
+
+	if (ocp_write_word(dev, McuTypeUsb, UsbMscTimer, 0x0fff))
+		return 1;
+
+	if (r8153b_power_cut_disable(dev))
+		return 1;
+
+	if (r8153b_ups_disable(dev))
+		return 1;
+
+	if (r8153b_queue_wake_disable(dev))
+		return 1;
+
+	if (rtl_runtime_suspend_disable(dev))
+		return 1;
+
+	if (ocp_word_clearbits(dev, McuTypeUsb, UsbUsbCtrl,
+			       RxAggDisable | RxZeroEn))
+		return 1;
+
+	if (rtl_tally_reset(dev))
+		return 1;
+
+	if (rtl_enable(dev))
+		return 1;
+
+	if (r8153b_hw_phy_cfg(dev))
+		return 1;
+
+	return 0;
+}
+
 /*
  * The higher-level commands
  */
@@ -637,8 +784,9 @@ static int rtl8152_init(GenericUsbDevice *gen_dev)
 		break;
 	case RtlVersion08:
 	case RtlVersion09:
-		printf("RTL8153b is not supported yet.");
-		return 1;
+		if (r8153b_init(usb_dev))
+			return 1;
+		break;
 	}
 
 	printf("R8152: Done initializing\n");

src/drivers/net/r8152.h

@@ -31,7 +31,6 @@ static const uint16_t ByteEnWord = 0x33;
 static const uint16_t ByteEnByte = 0x11;
 static const uint16_t ByteEnStartMask = 0x0f;
 static const uint16_t ByteEnEndMask = 0xf0;
-static const uint16_t ByteEnSixBytes = 0x3f;
 
 enum {
 	RtlVersionUnknown = 0,
@@ -54,7 +53,6 @@ enum {
 	PlaDmyReg0 = 0xc0b0,
 	PlaFmc = 0xc0b4,
 	PlaMar = 0xcd00,
-	PlaBackup = 0xd000,
 	PlaLedFeature = 0xdd92,
 	PlaBootCtrl = 0xe004,
 	PlaEeeCr = 0xe040,
@@ -66,6 +64,7 @@ enum {
 	PlaRsttally = 0xe800,
 	PlaCr = 0xe813,
 	PlaCrwecr = 0xe81c,
+	PlaConfig34 = 0xe820,
 	PlaPhyPwr = 0xe84c,
 	PlaMisc1 = 0xe85a,
 	PlaOcpGphyBase = 0xe86c
@@ -111,6 +110,11 @@ enum {
 	CrwecrConfig = 0xc0
 };
 
+/* PlaConfig34 */
+enum {
+	LinkOffWakeEn = 0x0008
+};
+
 /* PlaPhyPwr */
 enum {
 	PfmPwmSwitch = 0x0040
@@ -123,12 +127,14 @@ enum {
 	UsbCsrDummy1 = 0xb464,
 	UsbCsrDummy2 = 0xb466,
 	UsbConnectTimer = 0xcbf8,
+	UsbMscTimer = 0xcbfc,
 	UsbBurstSize = 0xcfc0,
 	UsbUsbCtrl = 0xd406,
 	UsbLpmCtrl = 0xd41a,
 	UsbPowerCut = 0xd80a,
 	UsbMisc0 = 0xd81a,
 	UsbAfeCtrl2 = 0xd824,
+	UsbUpsFlags = 0xd848,
 	UsbWdt11Ctrl = 0xe43c
 };
 
@@ -152,7 +158,9 @@ static const uint8_t RokExitLpm = 0x02;
 /* UsbPowerCut */
 enum {
 	PwrEn = 0x0001,
-	Phase2En = 0x0008
+	Phase2En = 0x0008,
+	UpsEn = 1 << 4,
+	UpsPrewake = 1 << 5
 };
 
 /* UsbMisc0 */
@@ -163,6 +171,11 @@ static const uint16_t SenValMask = 0xf800;
 static const uint16_t SenValNormal = 0xa000;
 static const uint16_t SelRxidle = 0x0100;
 
+/* UsbUpsFlags */
+enum {
+	UpsFlagsEnEee = 1 << 20
+};
+
 /* UsbWdt11Ctrl */
 static const uint16_t Timer11En = 0x0001;
 
@@ -174,6 +187,7 @@ enum {
 enum {
 	OcpBaseMii = 0xa400,
 	OcpPhyStatus = 0xa420,
+	OcpNctlCfg = 0xa42c,
 	OcpPowerCfg = 0xa430,
 	OcpEeeCfg = 0xa432,
 	OcpSramAddr = 0xa436,
@@ -190,6 +204,10 @@ enum {
 	PhyStatPwrdn = 0x5
 };
 
+enum {
+	PgaReturnEn = 1 << 1
+};
+
 /* OcpPowerCfg */
 enum {
 	EeeClkdivEn = 0x8000,