[PATCH v6 1/2] misc: cardreader: add new Alcor Micro Cardreader PCI driver
From: Oleksij Rempel
Date: Sun Dec 02 2018 - 05:31:29 EST
This driver provides support for Alcor Micro AU6601 and AU6621
card readers.
This is single LUN HW and it is expected to work with following standards:
- Support SDR104 / SDR50
- MultiMedia Card (MMC)
- Memory Stick (MS)
- Memory Stick PRO (MS_Pro)
Since it is a PCIe controller, it should work on any architecture
supporting PCIe. For now, it was developed and tested only on x86_64.
This driver is a result of RE work and was created without any
documentation or real knowledge of HW internals.
Signed-off-by: Oleksij Rempel <linux@xxxxxxxxxxxxxxxx>
---
drivers/misc/Makefile | 2 +-
drivers/misc/cardreader/Kconfig | 11 +
drivers/misc/cardreader/Makefile | 4 +-
drivers/misc/cardreader/alcor_pci.c | 371 ++++++++++++++++++++++++++++
include/linux/alcor_pci.h | 286 +++++++++++++++++++++
5 files changed, 671 insertions(+), 3 deletions(-)
create mode 100644 drivers/misc/cardreader/alcor_pci.c
create mode 100644 include/linux/alcor_pci.h
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index af22bbc3d00c..fe3134cf3008 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -57,4 +57,4 @@ obj-$(CONFIG_ASPEED_LPC_CTRL) += aspeed-lpc-ctrl.o
obj-$(CONFIG_ASPEED_LPC_SNOOP) += aspeed-lpc-snoop.o
obj-$(CONFIG_PCI_ENDPOINT_TEST) += pci_endpoint_test.o
obj-$(CONFIG_OCXL) += ocxl/
-obj-$(CONFIG_MISC_RTSX) += cardreader/
+obj-y += cardreader/
diff --git a/drivers/misc/cardreader/Kconfig b/drivers/misc/cardreader/Kconfig
index 69e815e32a8c..ed8993b5d058 100644
--- a/drivers/misc/cardreader/Kconfig
+++ b/drivers/misc/cardreader/Kconfig
@@ -1,3 +1,14 @@
+config MISC_ALCOR_PCI
+ tristate "Alcor Micro/Alcor Link PCI-E card reader"
+ depends on PCI
+ select MFD_CORE
+ help
+ This supports for Alcor Micro PCI-Express card reader including au6601,
+ au6621.
+ Alcor Micro card readers support access to many types of memory cards,
+ such as Memory Stick, Memory Stick Pro, Secure Digital and
+ MultiMediaCard.
+
config MISC_RTSX_PCI
tristate "Realtek PCI-E card reader"
depends on PCI
diff --git a/drivers/misc/cardreader/Makefile b/drivers/misc/cardreader/Makefile
index 9fabfcc6fa7a..9882d2a1025c 100644
--- a/drivers/misc/cardreader/Makefile
+++ b/drivers/misc/cardreader/Makefile
@@ -1,4 +1,4 @@
-rtsx_pci-objs := rtsx_pcr.o rts5209.o rts5229.o rtl8411.o rts5227.o rts5249.o rts5260.o
-
+obj-$(CONFIG_MISC_ALCOR_PCI) += alcor_pci.o
obj-$(CONFIG_MISC_RTSX_PCI) += rtsx_pci.o
+rtsx_pci-objs := rtsx_pcr.o rts5209.o rts5229.o rtl8411.o rts5227.o rts5249.o rts5260.o
obj-$(CONFIG_MISC_RTSX_USB) += rtsx_usb.o
diff --git a/drivers/misc/cardreader/alcor_pci.c b/drivers/misc/cardreader/alcor_pci.c
new file mode 100644
index 000000000000..6872b8e29b4d
--- /dev/null
+++ b/drivers/misc/cardreader/alcor_pci.c
@@ -0,0 +1,371 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2018 Oleksij Rempel <linux@xxxxxxxxxxxxxxxx>
+ *
+ * Driver for Alcor Micro AU6601 and AU6621 controllers
+ */
+
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/mfd/core.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/platform_device.h>
+#include <linux/pm.h>
+
+#include <linux/alcor_pci.h>
+
+#define DRV_NAME_ALCOR_PCI "alcor_pci"
+
+static DEFINE_IDA(alcor_pci_idr);
+
+static struct mfd_cell alcor_pci_cells[] = {
+ [ALCOR_SD_CARD] = {
+ .name = DRV_NAME_ALCOR_PCI_SDMMC,
+ },
+ [ALCOR_MS_CARD] = {
+ .name = DRV_NAME_ALCOR_PCI_MS,
+ },
+};
+
+static const struct alcor_dev_cfg alcor_cfg = {
+ .dma = 0,
+};
+
+static const struct alcor_dev_cfg au6621_cfg = {
+ .dma = 1,
+};
+
+static const struct pci_device_id pci_ids[] = {
+ { PCI_DEVICE(PCI_ID_ALCOR_MICRO, PCI_ID_AU6601),
+ .driver_data = (kernel_ulong_t)&alcor_cfg },
+ { PCI_DEVICE(PCI_ID_ALCOR_MICRO, PCI_ID_AU6621),
+ .driver_data = (kernel_ulong_t)&au6621_cfg },
+ { },
+};
+MODULE_DEVICE_TABLE(pci, pci_ids);
+
+void alcor_write8(struct alcor_pci_priv *priv, u8 val, unsigned int addr)
+{
+ writeb(val, priv->iobase + addr);
+}
+EXPORT_SYMBOL_GPL(alcor_write8);
+
+void alcor_write16(struct alcor_pci_priv *priv, u16 val, unsigned int addr)
+{
+ writew(val, priv->iobase + addr);
+}
+EXPORT_SYMBOL_GPL(alcor_write16);
+
+void alcor_write32(struct alcor_pci_priv *priv, u32 val, unsigned int addr)
+{
+ writel(val, priv->iobase + addr);
+}
+EXPORT_SYMBOL_GPL(alcor_write32);
+
+void alcor_write32be(struct alcor_pci_priv *priv, u32 val, unsigned int addr)
+{
+ iowrite32be(val, priv->iobase + addr);
+}
+EXPORT_SYMBOL_GPL(alcor_write32be);
+
+u8 alcor_read8(struct alcor_pci_priv *priv, unsigned int addr)
+{
+ return readb(priv->iobase + addr);
+}
+EXPORT_SYMBOL_GPL(alcor_read8);
+
+u32 alcor_read32(struct alcor_pci_priv *priv, unsigned int addr)
+{
+ return readl(priv->iobase + addr);
+}
+EXPORT_SYMBOL_GPL(alcor_read32);
+
+u32 alcor_read32be(struct alcor_pci_priv *priv, unsigned int addr)
+{
+ return ioread32be(priv->iobase + addr);
+}
+EXPORT_SYMBOL_GPL(alcor_read32be);
+
+static int alcor_pci_find_cap_offset(struct alcor_pci_priv *priv,
+ struct pci_dev *pci)
+{
+ int where;
+ u8 val8;
+ u32 val32;
+
+ where = ALCOR_CAP_START_OFFSET;
+ pci_read_config_byte(pci, where, &val8);
+ if (!val8)
+ return 0;
+
+ where = (int)val8;
+ while (1) {
+ pci_read_config_dword(pci, where, &val32);
+ if (val32 == 0xffffffff) {
+ dev_dbg(priv->dev, "find_cap_offset invailid value %x.\n",
+ val32);
+ return 0;
+ }
+
+ if ((val32 & 0xff) == 0x10) {
+ dev_dbg(priv->dev, "pcie cap offset: %x\n", where);
+ return where;
+ }
+
+ if ((val32 & 0xff00) == 0x00) {
+ dev_dbg(priv->dev, "pci_find_cap_offset invailid value %x.\n",
+ val32);
+ break;
+ }
+ where = (int)((val32 >> 8) & 0xff);
+ }
+
+ return 0;
+}
+
+static void alcor_pci_init_check_aspm(struct alcor_pci_priv *priv)
+{
+ struct pci_dev *pci;
+ int where;
+ u32 val32;
+
+ priv->pdev_cap_off = alcor_pci_find_cap_offset(priv, priv->pdev);
+ priv->parent_cap_off = alcor_pci_find_cap_offset(priv,
+ priv->parent_pdev);
+
+ if ((priv->pdev_cap_off == 0) || (priv->parent_cap_off == 0)) {
+ dev_dbg(priv->dev, "pci_cap_off: %x, parent_cap_off: %x\n",
+ priv->pdev_cap_off, priv->parent_cap_off);
+ return;
+ }
+
+ /* link capability */
+ pci = priv->pdev;
+ where = priv->pdev_cap_off + ALCOR_PCIE_LINK_CAP_OFFSET;
+ pci_read_config_dword(pci, where, &val32);
+ priv->pdev_aspm_cap = (u8)(val32 >> 10) & 0x03;
+
+ pci = priv->parent_pdev;
+ where = priv->parent_cap_off + ALCOR_PCIE_LINK_CAP_OFFSET;
+ pci_read_config_dword(pci, where, &val32);
+ priv->parent_aspm_cap = (u8)(val32 >> 10) & 0x03;
+
+ if (priv->pdev_aspm_cap != priv->parent_aspm_cap) {
+ u8 aspm_cap;
+
+ dev_dbg(priv->dev, "pdev_aspm_cap: %x, parent_aspm_cap: %x\n",
+ priv->pdev_aspm_cap, priv->parent_aspm_cap);
+ aspm_cap = priv->pdev_aspm_cap & priv->parent_aspm_cap;
+ priv->pdev_aspm_cap = aspm_cap;
+ priv->parent_aspm_cap = aspm_cap;
+ }
+
+ dev_dbg(priv->dev, "ext_config_dev_aspm: %x, pdev_aspm_cap: %x\n",
+ priv->ext_config_dev_aspm, priv->pdev_aspm_cap);
+ priv->ext_config_dev_aspm &= priv->pdev_aspm_cap;
+}
+
+static void alcor_pci_aspm_ctrl(struct alcor_pci_priv *priv, u8 aspm_enable)
+{
+ struct pci_dev *pci;
+ u8 aspm_ctrl, i;
+ int where;
+ u32 val32;
+
+ if ((!priv->pdev_cap_off) || (!priv->parent_cap_off)) {
+ dev_dbg(priv->dev, "pci_cap_off: %x, parent_cap_off: %x\n",
+ priv->pdev_cap_off, priv->parent_cap_off);
+ return;
+ }
+
+ if (!priv->pdev_aspm_cap)
+ return;
+
+ aspm_ctrl = 0;
+ if (aspm_enable) {
+ aspm_ctrl = priv->ext_config_dev_aspm;
+
+ if (!aspm_ctrl) {
+ dev_dbg(priv->dev, "aspm_ctrl == 0\n");
+ return;
+ }
+ }
+
+ for (i = 0; i < 2; i++) {
+
+ if (i) {
+ pci = priv->parent_pdev;
+ where = priv->parent_cap_off
+ + ALCOR_PCIE_LINK_CTRL_OFFSET;
+ } else {
+ pci = priv->pdev;
+ where = priv->pdev_cap_off
+ + ALCOR_PCIE_LINK_CTRL_OFFSET;
+ }
+
+ pci_read_config_dword(pci, where, &val32);
+ val32 &= (~0x03);
+ val32 |= (aspm_ctrl & priv->pdev_aspm_cap);
+ pci_write_config_byte(pci, where, (u8)val32);
+ }
+
+}
+
+static inline void alcor_mask_sd_irqs(struct alcor_pci_priv *priv)
+{
+ alcor_write32(priv, 0, AU6601_REG_INT_ENABLE);
+}
+
+static inline void alcor_unmask_sd_irqs(struct alcor_pci_priv *priv)
+{
+ alcor_write32(priv, AU6601_INT_CMD_MASK | AU6601_INT_DATA_MASK |
+ AU6601_INT_CARD_INSERT | AU6601_INT_CARD_REMOVE |
+ AU6601_INT_OVER_CURRENT_ERR,
+ AU6601_REG_INT_ENABLE);
+}
+
+static inline void alcor_mask_ms_irqs(struct alcor_pci_priv *priv)
+{
+ alcor_write32(priv, 0, AU6601_MS_INT_ENABLE);
+}
+
+static inline void alcor_unmask_ms_irqs(struct alcor_pci_priv *priv)
+{
+ alcor_write32(priv, 0x3d00fa, AU6601_MS_INT_ENABLE);
+}
+
+static int alcor_pci_probe(struct pci_dev *pdev,
+ const struct pci_device_id *ent)
+{
+ struct alcor_dev_cfg *cfg;
+ struct alcor_pci_priv *priv;
+ int ret, i, bar = 0;
+
+ cfg = (void *)ent->driver_data;
+
+ ret = pcim_enable_device(pdev);
+ if (ret)
+ return ret;
+
+ priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ ret = ida_simple_get(&alcor_pci_idr, 0, 0, GFP_KERNEL);
+ if (ret < 0)
+ return ret;
+ priv->id = ret;
+
+ priv->pdev = pdev;
+ priv->parent_pdev = pdev->bus->self;
+ priv->dev = &pdev->dev;
+ priv->cfg = cfg;
+ priv->irq = pdev->irq;
+
+ ret = pci_request_regions(pdev, DRV_NAME_ALCOR_PCI);
+ if (ret) {
+ dev_err(&pdev->dev, "Cannot request region\n");
+ return -ENOMEM;
+ }
+
+ if (!(pci_resource_flags(pdev, bar) & IORESOURCE_MEM)) {
+ dev_err(&pdev->dev, "BAR %d is not iomem. Aborting.\n", bar);
+ ret = -ENODEV;
+ goto error_release_regions;
+ }
+
+ priv->iobase = pcim_iomap(pdev, bar, 0);
+ if (!priv->iobase) {
+ ret = -ENOMEM;
+ goto error_release_regions;
+ }
+
+ /* make sure irqs are disabled */
+ alcor_write32(priv, 0, AU6601_REG_INT_ENABLE);
+ alcor_write32(priv, 0, AU6601_MS_INT_ENABLE);
+
+ ret = dma_set_mask_and_coherent(priv->dev, AU6601_SDMA_MASK);
+ if (ret) {
+ dev_err(priv->dev, "Failed to set DMA mask\n");
+ goto error_release_regions;
+ }
+
+ pci_set_master(pdev);
+ pci_set_drvdata(pdev, priv);
+ alcor_pci_init_check_aspm(priv);
+
+ for (i = 0; i < ARRAY_SIZE(alcor_pci_cells); i++) {
+ alcor_pci_cells[i].platform_data = priv;
+ alcor_pci_cells[i].pdata_size = sizeof(*priv);
+ }
+ ret = mfd_add_devices(&pdev->dev, priv->id, alcor_pci_cells,
+ ARRAY_SIZE(alcor_pci_cells), NULL, 0, NULL);
+ if (ret < 0)
+ goto error_release_regions;
+
+ alcor_pci_aspm_ctrl(priv, 0);
+
+ return 0;
+
+error_release_regions:
+ pci_release_regions(pdev);
+ return ret;
+}
+
+static void alcor_pci_remove(struct pci_dev *pdev)
+{
+ struct alcor_pci_priv *priv;
+
+ priv = pci_get_drvdata(pdev);
+
+ alcor_pci_aspm_ctrl(priv, 1);
+
+ mfd_remove_devices(&pdev->dev);
+
+ ida_simple_remove(&alcor_pci_idr, priv->id);
+
+ pci_release_regions(pdev);
+ pci_set_drvdata(pdev, NULL);
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int alcor_suspend(struct device *dev)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct alcor_pci_priv *priv = pci_get_drvdata(pdev);
+
+ alcor_pci_aspm_ctrl(priv, 1);
+ return 0;
+}
+
+static int alcor_resume(struct device *dev)
+{
+
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct alcor_pci_priv *priv = pci_get_drvdata(pdev);
+
+ alcor_pci_aspm_ctrl(priv, 0);
+ return 0;
+}
+#endif /* CONFIG_PM_SLEEP */
+
+static SIMPLE_DEV_PM_OPS(alcor_pci_pm_ops, alcor_suspend, alcor_resume);
+
+static struct pci_driver alcor_driver = {
+ .name = DRV_NAME_ALCOR_PCI,
+ .id_table = pci_ids,
+ .probe = alcor_pci_probe,
+ .remove = alcor_pci_remove,
+ .driver = {
+ .pm = &alcor_pci_pm_ops
+ },
+};
+
+module_pci_driver(alcor_driver);
+
+MODULE_AUTHOR("Oleksij Rempel <linux@xxxxxxxxxxxxxxxx>");
+MODULE_DESCRIPTION("PCI driver for Alcor Micro AU6601 Secure Digital Host Controller Interface");
+MODULE_LICENSE("GPL");
diff --git a/include/linux/alcor_pci.h b/include/linux/alcor_pci.h
new file mode 100644
index 000000000000..da973e8a2da8
--- /dev/null
+++ b/include/linux/alcor_pci.h
@@ -0,0 +1,286 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2018 Oleksij Rempel <linux@xxxxxxxxxxxxxxxx>
+ *
+ * Driver for Alcor Micro AU6601 and AU6621 controllers
+ */
+
+#ifndef __ALCOR_PCI_H
+#define __ALCOR_PCI_H
+
+#define ALCOR_SD_CARD 0
+#define ALCOR_MS_CARD 1
+
+#define DRV_NAME_ALCOR_PCI_SDMMC "alcor_sdmmc"
+#define DRV_NAME_ALCOR_PCI_MS "alcor_ms"
+
+#define PCI_ID_ALCOR_MICRO 0x1AEA
+#define PCI_ID_AU6601 0x6601
+#define PCI_ID_AU6621 0x6621
+
+#define MHZ_TO_HZ(freq) ((freq) * 1000 * 1000)
+
+#define AU6601_BASE_CLOCK 31000000
+#define AU6601_MIN_CLOCK 150000
+#define AU6601_MAX_CLOCK 208000000
+#define AU6601_MAX_DMA_SEGMENTS 1
+#define AU6601_MAX_PIO_SEGMENTS 1
+#define AU6601_MAX_DMA_BLOCK_SIZE 0x1000
+#define AU6601_MAX_PIO_BLOCK_SIZE 0x200
+#define AU6601_MAX_DMA_BLOCKS 1
+#define AU6601_DMA_LOCAL_SEGMENTS 1
+
+/* registers spotter by reverse engineering but still
+ * with unknown functionality:
+ * 0x10 - ADMA phy address. AU6621 only?
+ * 0x51 - LED ctrl?
+ * 0x52 - unknown
+ * 0x61 - LED related? Always toggled BIT0
+ * 0x63 - Same as 0x61?
+ * 0x77 - unknown
+ */
+
+/* SDMA phy address. Higher then 0x0800.0000?
+ * The au6601 and au6621 have different DMA engines with different issues. One
+ * For example au6621 engine is triggered by addr change. No other interaction
+ * is needed. This means, if we get two buffers with same address, then engine
+ * will stall.
+ */
+#define AU6601_REG_SDMA_ADDR 0x00
+#define AU6601_SDMA_MASK 0xffffffff
+
+#define AU6601_DMA_BOUNDARY 0x05
+#define AU6621_DMA_PAGE_CNT 0x05
+/* PIO */
+#define AU6601_REG_BUFFER 0x08
+/* ADMA ctrl? AU6621 only. */
+#define AU6621_DMA_CTRL 0x0c
+#define AU6621_DMA_ENABLE BIT(0)
+/* CMD index */
+#define AU6601_REG_CMD_OPCODE 0x23
+/* CMD parametr */
+#define AU6601_REG_CMD_ARG 0x24
+/* CMD response 4x4 Bytes */
+#define AU6601_REG_CMD_RSP0 0x30
+#define AU6601_REG_CMD_RSP1 0x34
+#define AU6601_REG_CMD_RSP2 0x38
+#define AU6601_REG_CMD_RSP3 0x3C
+/* default timeout set to 125: 125 * 40ms = 5 sec
+ * how exactly it is calculated?
+ */
+#define AU6601_TIME_OUT_CTRL 0x69
+/* Block size for SDMA or PIO */
+#define AU6601_REG_BLOCK_SIZE 0x6c
+/* Some power related reg, used together with AU6601_OUTPUT_ENABLE */
+#define AU6601_POWER_CONTROL 0x70
+
+/* PLL ctrl */
+#define AU6601_CLK_SELECT 0x72
+#define AU6601_CLK_OVER_CLK 0x80
+#define AU6601_CLK_384_MHZ 0x30
+#define AU6601_CLK_125_MHZ 0x20
+#define AU6601_CLK_48_MHZ 0x10
+#define AU6601_CLK_EXT_PLL 0x04
+#define AU6601_CLK_X2_MODE 0x02
+#define AU6601_CLK_ENABLE 0x01
+#define AU6601_CLK_31_25_MHZ 0x00
+
+#define AU6601_CLK_DIVIDER 0x73
+
+#define AU6601_INTERFACE_MODE_CTRL 0x74
+#define AU6601_DLINK_MODE 0x80
+#define AU6601_INTERRUPT_DELAY_TIME 0x40
+#define AU6601_SIGNAL_REQ_CTRL 0x30
+#define AU6601_MS_CARD_WP BIT(3)
+#define AU6601_SD_CARD_WP BIT(0)
+
+/* same register values are used for:
+ * - AU6601_OUTPUT_ENABLE
+ * - AU6601_POWER_CONTROL
+ */
+#define AU6601_ACTIVE_CTRL 0x75
+#define AU6601_XD_CARD BIT(4)
+/* AU6601_MS_CARD_ACTIVE - will cativate MS card section? */
+#define AU6601_MS_CARD BIT(3)
+#define AU6601_SD_CARD BIT(0)
+
+/* card slot state. It should automatically detect type of
+ * the card
+ */
+#define AU6601_DETECT_STATUS 0x76
+#define AU6601_DETECT_EN BIT(7)
+#define AU6601_MS_DETECTED BIT(3)
+#define AU6601_SD_DETECTED BIT(0)
+#define AU6601_DETECT_STATUS_M 0xf
+
+#define AU6601_REG_SW_RESET 0x79
+#define AU6601_BUF_CTRL_RESET BIT(7)
+#define AU6601_RESET_DATA BIT(3)
+#define AU6601_RESET_CMD BIT(0)
+
+#define AU6601_OUTPUT_ENABLE 0x7a
+
+#define AU6601_PAD_DRIVE0 0x7b
+#define AU6601_PAD_DRIVE1 0x7c
+#define AU6601_PAD_DRIVE2 0x7d
+/* read EEPROM? */
+#define AU6601_FUNCTION 0x7f
+
+#define AU6601_CMD_XFER_CTRL 0x81
+#define AU6601_CMD_17_BYTE_CRC 0xc0
+#define AU6601_CMD_6_BYTE_WO_CRC 0x80
+#define AU6601_CMD_6_BYTE_CRC 0x40
+#define AU6601_CMD_START_XFER 0x20
+#define AU6601_CMD_STOP_WAIT_RDY 0x10
+#define AU6601_CMD_NO_RESP 0x00
+
+#define AU6601_REG_BUS_CTRL 0x82
+#define AU6601_BUS_WIDTH_4BIT 0x20
+#define AU6601_BUS_WIDTH_8BIT 0x10
+#define AU6601_BUS_WIDTH_1BIT 0x00
+
+#define AU6601_DATA_XFER_CTRL 0x83
+#define AU6601_DATA_WRITE BIT(7)
+#define AU6601_DATA_DMA_MODE BIT(6)
+#define AU6601_DATA_START_XFER BIT(0)
+
+#define AU6601_DATA_PIN_STATE 0x84
+#define AU6601_BUS_STAT_CMD BIT(15)
+/* BIT(4) - BIT(7) are permanently 1.
+ * May be reserved or not attached DAT4-DAT7
+ */
+#define AU6601_BUS_STAT_DAT3 BIT(3)
+#define AU6601_BUS_STAT_DAT2 BIT(2)
+#define AU6601_BUS_STAT_DAT1 BIT(1)
+#define AU6601_BUS_STAT_DAT0 BIT(0)
+#define AU6601_BUS_STAT_DAT_MASK 0xf
+
+#define AU6601_OPT 0x85
+#define AU6601_OPT_CMD_LINE_LEVEL 0x80
+#define AU6601_OPT_NCRC_16_CLK BIT(4)
+#define AU6601_OPT_CMD_NWT BIT(3)
+#define AU6601_OPT_STOP_CLK BIT(2)
+#define AU6601_OPT_DDR_MODE BIT(1)
+#define AU6601_OPT_SD_18V BIT(0)
+
+#define AU6601_CLK_DELAY 0x86
+#define AU6601_CLK_DATA_POSITIVE_EDGE 0x80
+#define AU6601_CLK_CMD_POSITIVE_EDGE 0x40
+#define AU6601_CLK_POSITIVE_EDGE_ALL (AU6601_CLK_CMD_POSITIVE_EDGE \
+ | AU6601_CLK_DATA_POSITIVE_EDGE)
+
+
+#define AU6601_REG_INT_STATUS 0x90
+#define AU6601_REG_INT_ENABLE 0x94
+#define AU6601_INT_DATA_END_BIT_ERR BIT(22)
+#define AU6601_INT_DATA_CRC_ERR BIT(21)
+#define AU6601_INT_DATA_TIMEOUT_ERR BIT(20)
+#define AU6601_INT_CMD_INDEX_ERR BIT(19)
+#define AU6601_INT_CMD_END_BIT_ERR BIT(18)
+#define AU6601_INT_CMD_CRC_ERR BIT(17)
+#define AU6601_INT_CMD_TIMEOUT_ERR BIT(16)
+#define AU6601_INT_ERROR BIT(15)
+#define AU6601_INT_OVER_CURRENT_ERR BIT(8)
+#define AU6601_INT_CARD_INSERT BIT(7)
+#define AU6601_INT_CARD_REMOVE BIT(6)
+#define AU6601_INT_READ_BUF_RDY BIT(5)
+#define AU6601_INT_WRITE_BUF_RDY BIT(4)
+#define AU6601_INT_DMA_END BIT(3)
+#define AU6601_INT_DATA_END BIT(1)
+#define AU6601_INT_CMD_END BIT(0)
+
+#define AU6601_INT_NORMAL_MASK 0x00007FFF
+#define AU6601_INT_ERROR_MASK 0xFFFF8000
+
+#define AU6601_INT_CMD_MASK (AU6601_INT_CMD_END | \
+ AU6601_INT_CMD_TIMEOUT_ERR | AU6601_INT_CMD_CRC_ERR | \
+ AU6601_INT_CMD_END_BIT_ERR | AU6601_INT_CMD_INDEX_ERR)
+#define AU6601_INT_DATA_MASK (AU6601_INT_DATA_END | AU6601_INT_DMA_END | \
+ AU6601_INT_READ_BUF_RDY | AU6601_INT_WRITE_BUF_RDY | \
+ AU6601_INT_DATA_TIMEOUT_ERR | AU6601_INT_DATA_CRC_ERR | \
+ AU6601_INT_DATA_END_BIT_ERR)
+#define AU6601_INT_ALL_MASK ((u32)-1)
+
+/* MS_CARD mode registers */
+
+#define AU6601_MS_STATUS 0xa0
+
+#define AU6601_MS_BUS_MODE_CTRL 0xa1
+#define AU6601_MS_BUS_8BIT_MODE 0x03
+#define AU6601_MS_BUS_4BIT_MODE 0x01
+#define AU6601_MS_BUS_1BIT_MODE 0x00
+
+#define AU6601_MS_TPC_CMD 0xa2
+#define AU6601_MS_TPC_READ_PAGE_DATA 0x02
+#define AU6601_MS_TPC_READ_REG 0x04
+#define AU6601_MS_TPC_GET_INT 0x07
+#define AU6601_MS_TPC_WRITE_PAGE_DATA 0x0D
+#define AU6601_MS_TPC_WRITE_REG 0x0B
+#define AU6601_MS_TPC_SET_RW_REG_ADRS 0x08
+#define AU6601_MS_TPC_SET_CMD 0x0E
+#define AU6601_MS_TPC_EX_SET_CMD 0x09
+#define AU6601_MS_TPC_READ_SHORT_DATA 0x03
+#define AU6601_MS_TPC_WRITE_SHORT_DATA 0x0C
+
+#define AU6601_MS_TRANSFER_MODE 0xa3
+#define AU6601_MS_XFER_INT_TIMEOUT_CHK BIT(2)
+#define AU6601_MS_XFER_DMA_ENABLE BIT(1)
+#define AU6601_MS_XFER_START BIT(0)
+
+#define AU6601_MS_DATA_PIN_STATE 0xa4
+
+#define AU6601_MS_INT_STATUS 0xb0
+#define AU6601_MS_INT_ENABLE 0xb4
+#define AU6601_MS_INT_OVER_CURRENT_ERROR BIT(23)
+#define AU6601_MS_INT_DATA_CRC_ERROR BIT(21)
+#define AU6601_MS_INT_INT_TIMEOUT BIT(20)
+#define AU6601_MS_INT_INT_RESP_ERROR BIT(19)
+#define AU6601_MS_INT_CED_ERROR BIT(18)
+#define AU6601_MS_INT_TPC_TIMEOUT BIT(16)
+#define AU6601_MS_INT_ERROR BIT(15)
+#define AU6601_MS_INT_CARD_INSERT BIT(7)
+#define AU6601_MS_INT_CARD_REMOVE BIT(6)
+#define AU6601_MS_INT_BUF_READ_RDY BIT(5)
+#define AU6601_MS_INT_BUF_WRITE_RDY BIT(4)
+#define AU6601_MS_INT_DMA_END BIT(3)
+#define AU6601_MS_INT_TPC_END BIT(1)
+
+#define AU6601_MS_INT_DATA_MASK 0x00000038
+#define AU6601_MS_INT_TPC_MASK 0x003d8002
+#define AU6601_MS_INT_TPC_ERROR 0x003d0000
+
+#define ALCOR_PCIE_LINK_CTRL_OFFSET 0x10
+#define ALCOR_PCIE_LINK_CAP_OFFSET 0x0c
+#define ALCOR_CAP_START_OFFSET 0x34
+
+struct alcor_dev_cfg {
+ u8 dma;
+};
+
+struct alcor_pci_priv {
+ struct pci_dev *pdev;
+ struct pci_dev *parent_pdev;
+ struct device *dev;
+ void __iomem *iobase;
+ unsigned int irq;
+
+ unsigned long id; /* idr id */
+
+ struct alcor_dev_cfg *cfg;
+
+ /* PCI ASPM related vars */
+ int pdev_cap_off;
+ u8 pdev_aspm_cap;
+ int parent_cap_off;
+ u8 parent_aspm_cap;
+ u8 ext_config_dev_aspm;
+};
+
+void alcor_write8(struct alcor_pci_priv *priv, u8 val, unsigned int addr);
+void alcor_write16(struct alcor_pci_priv *priv, u16 val, unsigned int addr);
+void alcor_write32(struct alcor_pci_priv *priv, u32 val, unsigned int addr);
+void alcor_write32be(struct alcor_pci_priv *priv, u32 val, unsigned int addr);
+u8 alcor_read8(struct alcor_pci_priv *priv, unsigned int addr);
+u32 alcor_read32(struct alcor_pci_priv *priv, unsigned int addr);
+u32 alcor_read32be(struct alcor_pci_priv *priv, unsigned int addr);
+#endif
--
2.17.1