qtnfmac: add support for Topaz chipsets

This patch adds support for QSR1000/QSR2000 family of chipsets
to qtnfmac_pcie platform driver.

QSR1000/QSR2000 (aka Topaz) is a family of 80MHz, 11ac Wave2,
4x4/2x4/2x2 chips, including single and dual band devices.
Depending on specific chip model and firmware in use, either
STA or both STA and AP modes are supported.

Patch adds Topaz support to qtnfmac_pcie driver. Proper platform
bus will be selected on probing based on chip ID.

Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Andrey Shevchenko <ashevchenko@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/quantenna/qtnfmac/Kconfig

@@ -5,7 +5,7 @@ config QTNFMAC
 	default y if QTNFMAC_PCIE=y
 
 config QTNFMAC_PCIE
-	tristate "Quantenna QSR10g PCIe support"
+	tristate "Quantenna QSR1000/QSR2000/QSR10g PCIe support"
 	default n
 	depends on PCI && CFG80211
 	select QTNFMAC
@@ -13,7 +13,8 @@ config QTNFMAC_PCIE
 	select CRC32
 	help
 	  This option adds support for wireless adapters based on Quantenna
-	  802.11ac QSR10g (aka Pearl) FullMAC chipset running over PCIe.
+	  802.11ac QSR10g (aka Pearl) and QSR1000/QSR2000 (aka Topaz)
+	  FullMAC chipsets running over PCIe.
 
 	  If you choose to build it as a module, two modules will be built:
 	  qtnfmac.ko and qtnfmac_pcie.ko.

drivers/net/wireless/quantenna/qtnfmac/Makefile

@@ -24,6 +24,7 @@ obj-$(CONFIG_QTNFMAC_PCIE) += qtnfmac_pcie.o
 qtnfmac_pcie-objs += \
 	shm_ipc.o \
 	pcie/pcie.o \
-	pcie/pearl_pcie.o
+	pcie/pearl_pcie.o \
+	pcie/topaz_pcie.o
 
 qtnfmac_pcie-$(CONFIG_DEBUG_FS) += debug.o

drivers/net/wireless/quantenna/qtnfmac/pcie/pcie.c

@@ -330,6 +330,9 @@ static int qtnf_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	case QTN_CHIP_ID_PEARL_C:
 		bus = qtnf_pcie_pearl_alloc(pdev);
 		break;
+	case QTN_CHIP_ID_TOPAZ:
+		bus = qtnf_pcie_topaz_alloc(pdev);
+		break;
 	default:
 		pr_err("unsupported chip ID 0x%x\n", chipid);
 		return -ENOTSUPP;
@@ -465,7 +468,7 @@ static SIMPLE_DEV_PM_OPS(qtnf_pcie_pm_ops, qtnf_pcie_suspend,
 
 static const struct pci_device_id qtnf_pcie_devid_table[] = {
 	{
-		PCIE_VENDOR_ID_QUANTENNA, PCIE_DEVICE_ID_QTN_PEARL,
+		PCIE_VENDOR_ID_QUANTENNA, PCIE_DEVICE_ID_QSR,
 		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
 	},
 	{ },

drivers/net/wireless/quantenna/qtnfmac/pcie/pcie_priv.h

@@ -76,6 +76,7 @@ void qtnf_pcie_init_shm_ipc(struct qtnf_pcie_bus_priv *priv,
 			    struct qtnf_shm_ipc_region __iomem *ipc_rx_reg,
 			    const struct qtnf_shm_ipc_int *ipc_int);
 struct qtnf_bus *qtnf_pcie_pearl_alloc(struct pci_dev *pdev);
+struct qtnf_bus *qtnf_pcie_topaz_alloc(struct pci_dev *pdev);
 
 static inline void qtnf_non_posted_write(u32 val, void __iomem *basereg)
 {

drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie_ipc.h

@@ -0,0 +1,94 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (c) 2018 Quantenna Communications */
+
+#ifndef _QTN_FMAC_PCIE_IPC_H_
+#define _QTN_FMAC_PCIE_IPC_H_
+
+#include <linux/types.h>
+
+#include "shm_ipc_defs.h"
+
+/* EP/RC status and flags */
+#define QTN_BDA_PCIE_INIT		0x01
+#define QTN_BDA_PCIE_RDY		0x02
+#define QTN_BDA_FW_LOAD_RDY		0x03
+#define QTN_BDA_FW_LOAD_DONE		0x04
+#define QTN_BDA_FW_START		0x05
+#define QTN_BDA_FW_RUN			0x06
+#define QTN_BDA_FW_HOST_RDY		0x07
+#define QTN_BDA_FW_TARGET_RDY		0x11
+#define QTN_BDA_FW_TARGET_BOOT		0x12
+#define QTN_BDA_FW_FLASH_BOOT		0x13
+#define QTN_BDA_FW_QLINK_DONE		0x14
+#define QTN_BDA_FW_HOST_LOAD		0x08
+#define QTN_BDA_FW_BLOCK_DONE		0x09
+#define QTN_BDA_FW_BLOCK_RDY		0x0A
+#define QTN_BDA_FW_EP_RDY		0x0B
+#define QTN_BDA_FW_BLOCK_END		0x0C
+#define QTN_BDA_FW_CONFIG		0x0D
+#define QTN_BDA_FW_RUNNING		0x0E
+#define QTN_BDA_PCIE_FAIL		0x82
+#define QTN_BDA_FW_LOAD_FAIL		0x85
+
+#define QTN_BDA_RCMODE			BIT(1)
+#define QTN_BDA_MSI			BIT(2)
+#define QTN_BDA_HOST_CALCMD		BIT(3)
+#define QTN_BDA_FLASH_PRESENT		BIT(4)
+#define QTN_BDA_FLASH_BOOT		BIT(5)
+#define QTN_BDA_XMIT_UBOOT		BIT(6)
+#define QTN_BDA_HOST_QLINK_DRV		BIT(7)
+#define QTN_BDA_TARGET_FBOOT_ERR	BIT(8)
+#define QTN_BDA_TARGET_FWLOAD_ERR	BIT(9)
+#define QTN_BDA_HOST_NOFW_ERR		BIT(12)
+#define QTN_BDA_HOST_MEMALLOC_ERR	BIT(13)
+#define QTN_BDA_HOST_MEMMAP_ERR		BIT(14)
+#define QTN_BDA_VER(x)			(((x) >> 4) & 0xFF)
+#define QTN_BDA_ERROR_MASK		0xFF00
+
+/* registers and shmem address macros */
+#if BITS_PER_LONG == 64
+#define QTN_HOST_HI32(a)	((u32)(((u64)a) >> 32))
+#define QTN_HOST_LO32(a)	((u32)(((u64)a) & 0xffffffffUL))
+#define QTN_HOST_ADDR(h, l)	((((u64)h) << 32) | ((u64)l))
+#elif BITS_PER_LONG == 32
+#define QTN_HOST_HI32(a)	0
+#define QTN_HOST_LO32(a)	((u32)(((u32)a) & 0xffffffffUL))
+#define QTN_HOST_ADDR(h, l)	((u32)l)
+#else
+#error Unexpected BITS_PER_LONG value
+#endif
+
+#define QTN_PCIE_BDA_VERSION		0x1001
+
+#define PCIE_BDA_NAMELEN		32
+
+#define QTN_PCIE_RC_TX_QUEUE_LEN	256
+#define QTN_PCIE_TX_VALID_PKT		0x80000000
+#define QTN_PCIE_PKT_LEN_MASK		0xffff
+
+#define QTN_BD_EMPTY		((uint32_t)0x00000001)
+#define QTN_BD_WRAP		((uint32_t)0x00000002)
+#define QTN_BD_MASK_LEN		((uint32_t)0xFFFF0000)
+#define QTN_BD_MASK_OFFSET	((uint32_t)0x0000FF00)
+
+#define QTN_GET_LEN(x)		(((x) >> 16) & 0xFFFF)
+#define QTN_GET_OFFSET(x)	(((x) >> 8) & 0xFF)
+#define QTN_SET_LEN(len)	(((len) & 0xFFFF) << 16)
+#define QTN_SET_OFFSET(of)	(((of) & 0xFF) << 8)
+
+#define RX_DONE_INTR_MSK	((0x1 << 6) - 1)
+
+#define PCIE_DMA_OFFSET_ERROR		0xFFFF
+#define PCIE_DMA_OFFSET_ERROR_MASK	0xFFFF
+
+#define QTN_PCI_ENDIAN_DETECT_DATA	0x12345678
+#define QTN_PCI_ENDIAN_REVERSE_DATA	0x78563412
+#define QTN_PCI_ENDIAN_VALID_STATUS	0x3c3c3c3c
+#define QTN_PCI_ENDIAN_INVALID_STATUS	0
+#define QTN_PCI_LITTLE_ENDIAN		0
+#define QTN_PCI_BIG_ENDIAN		0xffffffff
+
+#define NBLOCKS(size, blksize)		\
+	((size) / (blksize) + (((size) % (blksize) > 0) ? 1 : 0))
+
+#endif /* _QTN_FMAC_PCIE_IPC_H_ */

drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie_regs.h

@@ -0,0 +1,45 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (c) 2018 Quantenna Communications */
+
+#ifndef __TOPAZ_PCIE_H
+#define __TOPAZ_PCIE_H
+
+/* Topaz PCIe DMA registers */
+#define PCIE_DMA_WR_INTR_STATUS(base)		((base) + 0x9bc)
+#define PCIE_DMA_WR_INTR_MASK(base)		((base) + 0x9c4)
+#define PCIE_DMA_WR_INTR_CLR(base)		((base) + 0x9c8)
+#define PCIE_DMA_WR_ERR_STATUS(base)		((base) + 0x9cc)
+#define PCIE_DMA_WR_DONE_IMWR_ADDR_LOW(base)	((base) + 0x9D0)
+#define PCIE_DMA_WR_DONE_IMWR_ADDR_HIGH(base)	((base) + 0x9d4)
+
+#define PCIE_DMA_RD_INTR_STATUS(base)		((base) + 0x310)
+#define PCIE_DMA_RD_INTR_MASK(base)		((base) + 0x319)
+#define PCIE_DMA_RD_INTR_CLR(base)		((base) + 0x31c)
+#define PCIE_DMA_RD_ERR_STATUS_LOW(base)	((base) + 0x324)
+#define PCIE_DMA_RD_ERR_STATUS_HIGH(base)	((base) + 0x328)
+#define PCIE_DMA_RD_DONE_IMWR_ADDR_LOW(base)	((base) + 0x33c)
+#define PCIE_DMA_RD_DONE_IMWR_ADDR_HIGH(base)	((base) + 0x340)
+
+/* Topaz LHost IPC4 interrupt */
+#define TOPAZ_LH_IPC4_INT(base)			((base) + 0x13C)
+#define TOPAZ_LH_IPC4_INT_MASK(base)		((base) + 0x140)
+
+#define TOPAZ_RC_TX_DONE_IRQ			(0)
+#define TOPAZ_RC_RST_EP_IRQ			(1)
+#define TOPAZ_RC_TX_STOP_IRQ			(2)
+#define TOPAZ_RC_RX_DONE_IRQ			(3)
+#define TOPAZ_RC_PM_EP_IRQ			(4)
+
+/* Topaz LHost M2L interrupt */
+#define TOPAZ_CTL_M2L_INT(base)			((base) + 0x2C)
+#define TOPAZ_CTL_M2L_INT_MASK(base)		((base) + 0x30)
+
+#define TOPAZ_RC_CTRL_IRQ			(6)
+
+#define TOPAZ_IPC_IRQ_WORD(irq)			(BIT(irq) | BIT(irq + 16))
+
+/* PCIe legacy INTx */
+#define TOPAZ_PCIE_CFG0_OFFSET	(0x6C)
+#define TOPAZ_ASSERT_INTX	BIT(9)
+
+#endif /* __TOPAZ_PCIE_H */

drivers/net/wireless/quantenna/qtnfmac/qtn_hw_ids.h

@@ -23,7 +23,7 @@
 
 /* PCIE Device IDs */
 
-#define	PCIE_DEVICE_ID_QTN_PEARL	(0x0008)
+#define	PCIE_DEVICE_ID_QSR		(0x0008)
 
 #define QTN_REG_SYS_CTRL_CSR		0x14
 #define QTN_CHIP_ID_MASK		0xF0
@@ -35,6 +35,8 @@
 /* FW names */
 
 #define QTN_PCI_PEARL_FW_NAME		"qtn/fmac_qsr10g.img"
+#define QTN_PCI_TOPAZ_FW_NAME		"qtn/fmac_qsr1000.img"
+#define QTN_PCI_TOPAZ_BOOTLD_NAME	"qtn/uboot_qsr1000.img"
 
 static inline unsigned int qtnf_chip_id_get(const void __iomem *regs_base)
 {

drivers/net/wireless/quantenna/qtnfmac/util.c

@@ -121,6 +121,8 @@ void qtnf_sta_list_free(struct qtnf_sta_list *list)
 const char *qtnf_chipid_to_string(unsigned long chip_id)
 {
 	switch (chip_id) {
+	case QTN_CHIP_ID_TOPAZ:
+		return "Topaz";
 	case QTN_CHIP_ID_PEARL:
 		return "Pearl revA";
 	case QTN_CHIP_ID_PEARL_B: