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Diffstat (limited to 'target/linux/mediatek/patches-4.14/0107-usb-mtu3-support-36-bit-DMA-address.patch')
-rw-r--r--target/linux/mediatek/patches-4.14/0107-usb-mtu3-support-36-bit-DMA-address.patch362
1 files changed, 0 insertions, 362 deletions
diff --git a/target/linux/mediatek/patches-4.14/0107-usb-mtu3-support-36-bit-DMA-address.patch b/target/linux/mediatek/patches-4.14/0107-usb-mtu3-support-36-bit-DMA-address.patch
deleted file mode 100644
index 88f52e6f20..0000000000
--- a/target/linux/mediatek/patches-4.14/0107-usb-mtu3-support-36-bit-DMA-address.patch
+++ /dev/null
@@ -1,362 +0,0 @@
-From d366bf086a61b7a895d8819a3c1349b9c6b8e40f Mon Sep 17 00:00:00 2001
-From: Chunfeng Yun <chunfeng.yun@mediatek.com>
-Date: Fri, 13 Oct 2017 17:10:41 +0800
-Subject: [PATCH 107/224] usb: mtu3: support 36-bit DMA address
-
-add support for 36-bit DMA address
-
-[ Felipe Balbi: fix printk format for dma_addr_t ]
-
-Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
-Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
----
- drivers/usb/mtu3/mtu3.h | 17 ++++++-
- drivers/usb/mtu3/mtu3_core.c | 34 +++++++++++++-
- drivers/usb/mtu3/mtu3_hw_regs.h | 10 ++++
- drivers/usb/mtu3/mtu3_qmu.c | 102 +++++++++++++++++++++++++++++++++-------
- 4 files changed, 142 insertions(+), 21 deletions(-)
-
---- a/drivers/usb/mtu3/mtu3.h
-+++ b/drivers/usb/mtu3/mtu3.h
-@@ -46,6 +46,9 @@ struct mtu3_request;
- #define MU3D_EP_RXCR1(epnum) (U3D_RX1CSR1 + (((epnum) - 1) * 0x10))
- #define MU3D_EP_RXCR2(epnum) (U3D_RX1CSR2 + (((epnum) - 1) * 0x10))
-
-+#define USB_QMU_TQHIAR(epnum) (U3D_TXQHIAR1 + (((epnum) - 1) * 0x4))
-+#define USB_QMU_RQHIAR(epnum) (U3D_RXQHIAR1 + (((epnum) - 1) * 0x4))
-+
- #define USB_QMU_RQCSR(epnum) (U3D_RXQCSR1 + (((epnum) - 1) * 0x10))
- #define USB_QMU_RQSAR(epnum) (U3D_RXQSAR1 + (((epnum) - 1) * 0x10))
- #define USB_QMU_RQCPR(epnum) (U3D_RXQCPR1 + (((epnum) - 1) * 0x10))
-@@ -138,23 +141,33 @@ struct mtu3_fifo_info {
- * Checksum value is calculated over the 16 bytes of the GPD by default;
- * @data_buf_len (RX ONLY): This value indicates the length of
- * the assigned data buffer
-+ * @tx_ext_addr (TX ONLY): [3:0] are 4 extension bits of @buffer,
-+ * [7:4] are 4 extension bits of @next_gpd
- * @next_gpd: Physical address of the next GPD
- * @buffer: Physical address of the data buffer
- * @buf_len:
- * (TX): This value indicates the length of the assigned data buffer
- * (RX): The total length of data received
- * @ext_len: reserved
-+ * @rx_ext_addr(RX ONLY): [3:0] are 4 extension bits of @buffer,
-+ * [7:4] are 4 extension bits of @next_gpd
- * @ext_flag:
- * bit5 (TX ONLY): Zero Length Packet (ZLP),
- */
- struct qmu_gpd {
- __u8 flag;
- __u8 chksum;
-- __le16 data_buf_len;
-+ union {
-+ __le16 data_buf_len;
-+ __le16 tx_ext_addr;
-+ };
- __le32 next_gpd;
- __le32 buffer;
- __le16 buf_len;
-- __u8 ext_len;
-+ union {
-+ __u8 ext_len;
-+ __u8 rx_ext_addr;
-+ };
- __u8 ext_flag;
- } __packed;
-
---- a/drivers/usb/mtu3/mtu3_core.c
-+++ b/drivers/usb/mtu3/mtu3_core.c
-@@ -17,6 +17,7 @@
- *
- */
-
-+#include <linux/dma-mapping.h>
- #include <linux/kernel.h>
- #include <linux/module.h>
- #include <linux/of_address.h>
-@@ -761,7 +762,31 @@ static void mtu3_hw_exit(struct mtu3 *mt
- mtu3_mem_free(mtu);
- }
-
--/*-------------------------------------------------------------------------*/
-+/**
-+ * we set 32-bit DMA mask by default, here check whether the controller
-+ * supports 36-bit DMA or not, if it does, set 36-bit DMA mask.
-+ */
-+static int mtu3_set_dma_mask(struct mtu3 *mtu)
-+{
-+ struct device *dev = mtu->dev;
-+ bool is_36bit = false;
-+ int ret = 0;
-+ u32 value;
-+
-+ value = mtu3_readl(mtu->mac_base, U3D_MISC_CTRL);
-+ if (value & DMA_ADDR_36BIT) {
-+ is_36bit = true;
-+ ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(36));
-+ /* If set 36-bit DMA mask fails, fall back to 32-bit DMA mask */
-+ if (ret) {
-+ is_36bit = false;
-+ ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32));
-+ }
-+ }
-+ dev_info(dev, "dma mask: %s bits\n", is_36bit ? "36" : "32");
-+
-+ return ret;
-+}
-
- int ssusb_gadget_init(struct ssusb_mtk *ssusb)
- {
-@@ -822,6 +847,12 @@ int ssusb_gadget_init(struct ssusb_mtk *
- return ret;
- }
-
-+ ret = mtu3_set_dma_mask(mtu);
-+ if (ret) {
-+ dev_err(dev, "mtu3 set dma_mask failed:%d\n", ret);
-+ goto dma_mask_err;
-+ }
-+
- ret = devm_request_irq(dev, mtu->irq, mtu3_irq, 0, dev_name(dev), mtu);
- if (ret) {
- dev_err(dev, "request irq %d failed!\n", mtu->irq);
-@@ -847,6 +878,7 @@ int ssusb_gadget_init(struct ssusb_mtk *
- gadget_err:
- device_init_wakeup(dev, false);
-
-+dma_mask_err:
- irq_err:
- mtu3_hw_exit(mtu);
- ssusb->u3d = NULL;
---- a/drivers/usb/mtu3/mtu3_hw_regs.h
-+++ b/drivers/usb/mtu3/mtu3_hw_regs.h
-@@ -58,6 +58,8 @@
- #define U3D_QCR1 (SSUSB_DEV_BASE + 0x0404)
- #define U3D_QCR2 (SSUSB_DEV_BASE + 0x0408)
- #define U3D_QCR3 (SSUSB_DEV_BASE + 0x040C)
-+#define U3D_TXQHIAR1 (SSUSB_DEV_BASE + 0x0484)
-+#define U3D_RXQHIAR1 (SSUSB_DEV_BASE + 0x04C4)
-
- #define U3D_TXQCSR1 (SSUSB_DEV_BASE + 0x0510)
- #define U3D_TXQSAR1 (SSUSB_DEV_BASE + 0x0514)
-@@ -189,6 +191,13 @@
- #define QMU_RX_COZ(x) (BIT(16) << (x))
- #define QMU_RX_ZLP(x) (BIT(0) << (x))
-
-+/* U3D_TXQHIAR1 */
-+/* U3D_RXQHIAR1 */
-+#define QMU_LAST_DONE_PTR_HI(x) (((x) >> 16) & 0xf)
-+#define QMU_CUR_GPD_ADDR_HI(x) (((x) >> 8) & 0xf)
-+#define QMU_START_ADDR_HI_MSK GENMASK(3, 0)
-+#define QMU_START_ADDR_HI(x) (((x) & 0xf) << 0)
-+
- /* U3D_TXQCSR1 */
- /* U3D_RXQCSR1 */
- #define QMU_Q_ACTIVE BIT(15)
-@@ -225,6 +234,7 @@
- #define CAP_TX_EP_NUM(x) ((x) & 0x1f)
-
- /* U3D_MISC_CTRL */
-+#define DMA_ADDR_36BIT BIT(31)
- #define VBUS_ON BIT(1)
- #define VBUS_FRC_EN BIT(0)
-
---- a/drivers/usb/mtu3/mtu3_qmu.c
-+++ b/drivers/usb/mtu3/mtu3_qmu.c
-@@ -40,7 +40,58 @@
- #define GPD_FLAGS_IOC BIT(7)
-
- #define GPD_EXT_FLAG_ZLP BIT(5)
-+#define GPD_EXT_NGP(x) (((x) & 0xf) << 4)
-+#define GPD_EXT_BUF(x) (((x) & 0xf) << 0)
-
-+#define HILO_GEN64(hi, lo) (((u64)(hi) << 32) + (lo))
-+#define HILO_DMA(hi, lo) \
-+ ((dma_addr_t)HILO_GEN64((le32_to_cpu(hi)), (le32_to_cpu(lo))))
-+
-+static dma_addr_t read_txq_cur_addr(void __iomem *mbase, u8 epnum)
-+{
-+ u32 txcpr;
-+ u32 txhiar;
-+
-+ txcpr = mtu3_readl(mbase, USB_QMU_TQCPR(epnum));
-+ txhiar = mtu3_readl(mbase, USB_QMU_TQHIAR(epnum));
-+
-+ return HILO_DMA(QMU_CUR_GPD_ADDR_HI(txhiar), txcpr);
-+}
-+
-+static dma_addr_t read_rxq_cur_addr(void __iomem *mbase, u8 epnum)
-+{
-+ u32 rxcpr;
-+ u32 rxhiar;
-+
-+ rxcpr = mtu3_readl(mbase, USB_QMU_RQCPR(epnum));
-+ rxhiar = mtu3_readl(mbase, USB_QMU_RQHIAR(epnum));
-+
-+ return HILO_DMA(QMU_CUR_GPD_ADDR_HI(rxhiar), rxcpr);
-+}
-+
-+static void write_txq_start_addr(void __iomem *mbase, u8 epnum, dma_addr_t dma)
-+{
-+ u32 tqhiar;
-+
-+ mtu3_writel(mbase, USB_QMU_TQSAR(epnum),
-+ cpu_to_le32(lower_32_bits(dma)));
-+ tqhiar = mtu3_readl(mbase, USB_QMU_TQHIAR(epnum));
-+ tqhiar &= ~QMU_START_ADDR_HI_MSK;
-+ tqhiar |= QMU_START_ADDR_HI(upper_32_bits(dma));
-+ mtu3_writel(mbase, USB_QMU_TQHIAR(epnum), tqhiar);
-+}
-+
-+static void write_rxq_start_addr(void __iomem *mbase, u8 epnum, dma_addr_t dma)
-+{
-+ u32 rqhiar;
-+
-+ mtu3_writel(mbase, USB_QMU_RQSAR(epnum),
-+ cpu_to_le32(lower_32_bits(dma)));
-+ rqhiar = mtu3_readl(mbase, USB_QMU_RQHIAR(epnum));
-+ rqhiar &= ~QMU_START_ADDR_HI_MSK;
-+ rqhiar |= QMU_START_ADDR_HI(upper_32_bits(dma));
-+ mtu3_writel(mbase, USB_QMU_RQHIAR(epnum), rqhiar);
-+}
-
- static struct qmu_gpd *gpd_dma_to_virt(struct mtu3_gpd_ring *ring,
- dma_addr_t dma_addr)
-@@ -193,21 +244,27 @@ static int mtu3_prepare_tx_gpd(struct mt
- struct mtu3_gpd_ring *ring = &mep->gpd_ring;
- struct qmu_gpd *gpd = ring->enqueue;
- struct usb_request *req = &mreq->request;
-+ dma_addr_t enq_dma;
-+ u16 ext_addr;
-
- /* set all fields to zero as default value */
- memset(gpd, 0, sizeof(*gpd));
-
-- gpd->buffer = cpu_to_le32((u32)req->dma);
-+ gpd->buffer = cpu_to_le32(lower_32_bits(req->dma));
-+ ext_addr = GPD_EXT_BUF(upper_32_bits(req->dma));
- gpd->buf_len = cpu_to_le16(req->length);
- gpd->flag |= GPD_FLAGS_IOC;
-
- /* get the next GPD */
- enq = advance_enq_gpd(ring);
-- dev_dbg(mep->mtu->dev, "TX-EP%d queue gpd=%p, enq=%p\n",
-- mep->epnum, gpd, enq);
-+ enq_dma = gpd_virt_to_dma(ring, enq);
-+ dev_dbg(mep->mtu->dev, "TX-EP%d queue gpd=%p, enq=%p, qdma=%pad\n",
-+ mep->epnum, gpd, enq, enq_dma);
-
- enq->flag &= ~GPD_FLAGS_HWO;
-- gpd->next_gpd = cpu_to_le32((u32)gpd_virt_to_dma(ring, enq));
-+ gpd->next_gpd = cpu_to_le32(lower_32_bits(enq_dma));
-+ ext_addr |= GPD_EXT_NGP(upper_32_bits(enq_dma));
-+ gpd->tx_ext_addr = cpu_to_le16(ext_addr);
-
- if (req->zero)
- gpd->ext_flag |= GPD_EXT_FLAG_ZLP;
-@@ -226,21 +283,27 @@ static int mtu3_prepare_rx_gpd(struct mt
- struct mtu3_gpd_ring *ring = &mep->gpd_ring;
- struct qmu_gpd *gpd = ring->enqueue;
- struct usb_request *req = &mreq->request;
-+ dma_addr_t enq_dma;
-+ u16 ext_addr;
-
- /* set all fields to zero as default value */
- memset(gpd, 0, sizeof(*gpd));
-
-- gpd->buffer = cpu_to_le32((u32)req->dma);
-+ gpd->buffer = cpu_to_le32(lower_32_bits(req->dma));
-+ ext_addr = GPD_EXT_BUF(upper_32_bits(req->dma));
- gpd->data_buf_len = cpu_to_le16(req->length);
- gpd->flag |= GPD_FLAGS_IOC;
-
- /* get the next GPD */
- enq = advance_enq_gpd(ring);
-- dev_dbg(mep->mtu->dev, "RX-EP%d queue gpd=%p, enq=%p\n",
-- mep->epnum, gpd, enq);
-+ enq_dma = gpd_virt_to_dma(ring, enq);
-+ dev_dbg(mep->mtu->dev, "RX-EP%d queue gpd=%p, enq=%p, qdma=%pad\n",
-+ mep->epnum, gpd, enq, enq_dma);
-
- enq->flag &= ~GPD_FLAGS_HWO;
-- gpd->next_gpd = cpu_to_le32((u32)gpd_virt_to_dma(ring, enq));
-+ gpd->next_gpd = cpu_to_le32(lower_32_bits(enq_dma));
-+ ext_addr |= GPD_EXT_NGP(upper_32_bits(enq_dma));
-+ gpd->rx_ext_addr = cpu_to_le16(ext_addr);
- gpd->chksum = qmu_calc_checksum((u8 *)gpd);
- gpd->flag |= GPD_FLAGS_HWO;
-
-@@ -267,8 +330,8 @@ int mtu3_qmu_start(struct mtu3_ep *mep)
-
- if (mep->is_in) {
- /* set QMU start address */
-- mtu3_writel(mbase, USB_QMU_TQSAR(mep->epnum), ring->dma);
-- mtu3_setbits(mbase, MU3D_EP_TXCR0(mep->epnum), TX_DMAREQEN);
-+ write_txq_start_addr(mbase, epnum, ring->dma);
-+ mtu3_setbits(mbase, MU3D_EP_TXCR0(epnum), TX_DMAREQEN);
- mtu3_setbits(mbase, U3D_QCR0, QMU_TX_CS_EN(epnum));
- /* send zero length packet according to ZLP flag in GPD */
- mtu3_setbits(mbase, U3D_QCR1, QMU_TX_ZLP(epnum));
-@@ -282,8 +345,8 @@ int mtu3_qmu_start(struct mtu3_ep *mep)
- mtu3_writel(mbase, USB_QMU_TQCSR(epnum), QMU_Q_START);
-
- } else {
-- mtu3_writel(mbase, USB_QMU_RQSAR(mep->epnum), ring->dma);
-- mtu3_setbits(mbase, MU3D_EP_RXCR0(mep->epnum), RX_DMAREQEN);
-+ write_rxq_start_addr(mbase, epnum, ring->dma);
-+ mtu3_setbits(mbase, MU3D_EP_RXCR0(epnum), RX_DMAREQEN);
- mtu3_setbits(mbase, U3D_QCR0, QMU_RX_CS_EN(epnum));
- /* don't expect ZLP */
- mtu3_clrbits(mbase, U3D_QCR3, QMU_RX_ZLP(epnum));
-@@ -353,9 +416,9 @@ static void qmu_tx_zlp_error_handler(str
- struct mtu3_gpd_ring *ring = &mep->gpd_ring;
- void __iomem *mbase = mtu->mac_base;
- struct qmu_gpd *gpd_current = NULL;
-- dma_addr_t gpd_dma = mtu3_readl(mbase, USB_QMU_TQCPR(epnum));
- struct usb_request *req = NULL;
- struct mtu3_request *mreq;
-+ dma_addr_t cur_gpd_dma;
- u32 txcsr = 0;
- int ret;
-
-@@ -365,7 +428,8 @@ static void qmu_tx_zlp_error_handler(str
- else
- return;
-
-- gpd_current = gpd_dma_to_virt(ring, gpd_dma);
-+ cur_gpd_dma = read_txq_cur_addr(mbase, epnum);
-+ gpd_current = gpd_dma_to_virt(ring, cur_gpd_dma);
-
- if (le16_to_cpu(gpd_current->buf_len) != 0) {
- dev_err(mtu->dev, "TX EP%d buffer length error(!=0)\n", epnum);
-@@ -408,12 +472,13 @@ static void qmu_done_tx(struct mtu3 *mtu
- void __iomem *mbase = mtu->mac_base;
- struct qmu_gpd *gpd = ring->dequeue;
- struct qmu_gpd *gpd_current = NULL;
-- dma_addr_t gpd_dma = mtu3_readl(mbase, USB_QMU_TQCPR(epnum));
- struct usb_request *request = NULL;
- struct mtu3_request *mreq;
-+ dma_addr_t cur_gpd_dma;
-
- /*transfer phy address got from QMU register to virtual address */
-- gpd_current = gpd_dma_to_virt(ring, gpd_dma);
-+ cur_gpd_dma = read_txq_cur_addr(mbase, epnum);
-+ gpd_current = gpd_dma_to_virt(ring, cur_gpd_dma);
-
- dev_dbg(mtu->dev, "%s EP%d, last=%p, current=%p, enq=%p\n",
- __func__, epnum, gpd, gpd_current, ring->enqueue);
-@@ -446,11 +511,12 @@ static void qmu_done_rx(struct mtu3 *mtu
- void __iomem *mbase = mtu->mac_base;
- struct qmu_gpd *gpd = ring->dequeue;
- struct qmu_gpd *gpd_current = NULL;
-- dma_addr_t gpd_dma = mtu3_readl(mbase, USB_QMU_RQCPR(epnum));
- struct usb_request *req = NULL;
- struct mtu3_request *mreq;
-+ dma_addr_t cur_gpd_dma;
-
-- gpd_current = gpd_dma_to_virt(ring, gpd_dma);
-+ cur_gpd_dma = read_rxq_cur_addr(mbase, epnum);
-+ gpd_current = gpd_dma_to_virt(ring, cur_gpd_dma);
-
- dev_dbg(mtu->dev, "%s EP%d, last=%p, current=%p, enq=%p\n",
- __func__, epnum, gpd, gpd_current, ring->enqueue);
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-19 03:25:09 +0000