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-rw-r--r--target/linux/ar71xx/config-2.6.301
-rw-r--r--target/linux/ar71xx/files/drivers/spi/spi_vsc7385.c604
-rw-r--r--target/linux/ar71xx/files/include/linux/spi/vsc7385.h2
-rw-r--r--target/linux/ar71xx/patches-2.6.30/202-spi_vsc7385_driver.patch24
4 files changed, 630 insertions, 1 deletions
diff --git a/target/linux/ar71xx/config-2.6.30 b/target/linux/ar71xx/config-2.6.30
index cc3bcd4e91..c24b542918 100644
--- a/target/linux/ar71xx/config-2.6.30
+++ b/target/linux/ar71xx/config-2.6.30
@@ -192,6 +192,7 @@ CONFIG_SPI_BITBANG=y
CONFIG_SPI_GPIO=y
CONFIG_SPI_MASTER=y
# CONFIG_SPI_SPIDEV is not set
+# CONFIG_SPI_VSC7385 is not set
CONFIG_SYS_HAS_CPU_MIPS32_R1=y
CONFIG_SYS_HAS_CPU_MIPS32_R2=y
CONFIG_SYS_HAS_EARLY_PRINTK=y
diff --git a/target/linux/ar71xx/files/drivers/spi/spi_vsc7385.c b/target/linux/ar71xx/files/drivers/spi/spi_vsc7385.c
new file mode 100644
index 0000000000..c270b0f05a
--- /dev/null
+++ b/target/linux/ar71xx/files/drivers/spi/spi_vsc7385.c
@@ -0,0 +1,604 @@
+/*
+ * SPI driver for the Vitesse VSC7385 ethernet switch
+ *
+ * Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org>
+ *
+ * Parts of this file are based on Atheros' 2.6.15 BSP
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/bitops.h>
+#include <linux/firmware.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/vsc7385.h>
+
+#define DRV_NAME "spi-vsc7385"
+#define DRV_DESC "Vitesse VSC7385 Gbit ethernet switch driver"
+#define DRV_VERSION "0.1.0"
+
+#define VSC73XX_BLOCK_MAC 0x1
+#define VSC73XX_BLOCK_2 0x2
+#define VSC73XX_BLOCK_MII 0x3
+#define VSC73XX_BLOCK_4 0x4
+#define VSC73XX_BLOCK_5 0x5
+#define VSC73XX_BLOCK_SYSTEM 0x7
+
+#define VSC73XX_SUBBLOCK_PORT_0 0
+#define VSC73XX_SUBBLOCK_PORT_1 1
+#define VSC73XX_SUBBLOCK_PORT_2 2
+#define VSC73XX_SUBBLOCK_PORT_3 3
+#define VSC73XX_SUBBLOCK_PORT_4 4
+#define VSC73XX_SUBBLOCK_PORT_MAC 6
+
+/* MAC Block registers */
+#define VSC73XX_MAC_CFG 0x0
+#define VSC73XX_ADVPORTM 0x19
+#define VSC73XX_RXOCT 0x50
+#define VSC73XX_TXOCT 0x51
+#define VSC73XX_C_RX0 0x52
+#define VSC73XX_C_RX1 0x53
+#define VSC73XX_C_RX2 0x54
+#define VSC73XX_C_TX0 0x55
+#define VSC73XX_C_TX1 0x56
+#define VSC73XX_C_TX2 0x57
+#define VSC73XX_C_CFG 0x58
+
+/* MAC_CFG register bits */
+#define VSC73XX_MAC_CFG_WEXC_DIS (1 << 31)
+#define VSC73XX_MAC_CFG_PORT_RST (1 << 29)
+#define VSC73XX_MAC_CFG_TX_EN (1 << 28)
+#define VSC73XX_MAC_CFG_SEED_LOAD (1 << 27)
+#define VSC73XX_MAC_CFG_FDX (1 << 18)
+#define VSC73XX_MAC_CFG_GIGE (1 << 17)
+#define VSC73XX_MAC_CFG_RX_EN (1 << 16)
+#define VSC73XX_MAC_CFG_VLAN_DBLAWR (1 << 15)
+#define VSC73XX_MAC_CFG_VLAN_AWR (1 << 14)
+#define VSC73XX_MAC_CFG_100_BASE_T (1 << 13)
+#define VSC73XX_MAC_CFG_TX_IPG(x) ((x & 0x1f) << 6)
+#define VSC73XX_MAC_CFG_MAC_RX_RST (1 << 5)
+#define VSC73XX_MAC_CFG_MAC_TX_RST (1 << 4)
+#define VSC73XX_MAC_CFG_CLK_SEL(x) ((x & 0x3) << 0)
+
+/* ADVPORTM register bits */
+#define VSC73XX_ADVPORTM_IFG_PPM (1 << 7)
+#define VSC73XX_ADVPORTM_EXC_COL_CONT (1 << 6)
+#define VSC73XX_ADVPORTM_EXT_PORT (1 << 5)
+#define VSC73XX_ADVPORTM_INV_GTX (1 << 4)
+#define VSC73XX_ADVPORTM_ENA_GTX (1 << 3)
+#define VSC73XX_ADVPORTM_DDR_MODE (1 << 2)
+#define VSC73XX_ADVPORTM_IO_LOOPBACK (1 << 1)
+#define VSC73XX_ADVPORTM_HOST_LOOPBACK (1 << 0)
+
+/* MII Block registers */
+#define VSC73XX_MII_STAT 0x0
+#define VSC73XX_MII_CMD 0x1
+#define VSC73XX_MII_DATA 0x2
+
+/* System Block registers */
+#define VSC73XX_ICPU_SIPAD 0x01
+#define VSC73XX_ICPU_CLOCK_DELAY 0x05
+#define VSC73XX_ICPU_CTRL 0x10
+#define VSC73XX_ICPU_ADDR 0x11
+#define VSC73XX_ICPU_SRAM 0x12
+#define VSC73XX_ICPU_MBOX_VAL 0x15
+#define VSC73XX_ICPU_MBOX_SET 0x16
+#define VSC73XX_ICPU_MBOX_CLR 0x17
+#define VSC73XX_ICPU_CHIPID 0x18
+#define VSC73XX_ICPU_GPIO 0x34
+
+#define VSC73XX_ICPU_CTRL_CLK_DIV (1 << 8)
+#define VSC73XX_ICPU_CTRL_SRST_HOLD (1 << 7)
+#define VSC73XX_ICPU_CTRL_BOOT_EN (1 << 3)
+#define VSC73XX_ICPU_CTRL_EXT_ACC_EN (1 << 2)
+#define VSC73XX_ICPU_CTRL_CLK_EN (1 << 1)
+#define VSC73XX_ICPU_CTRL_SRST (1 << 0)
+
+#define VSC73XX_CMD_MODE_READ 0
+#define VSC73XX_CMD_MODE_WRITE 1
+#define VSC73XX_CMD_MODE_SHIFT 4
+#define VSC73XX_CMD_BLOCK_SHIFT 5
+#define VSC73XX_CMD_BLOCK_MASK 0x7
+#define VSC73XX_CMD_SUBBLOCK_MASK 0xf
+
+#define VSC7385_CLOCK_DELAY ((3 << 4) | 3)
+#define VSC7385_CLOCK_DELAY_MASK ((3 << 4) | 3)
+
+#define VSC73XX_ICPU_CTRL_STOP (VSC73XX_ICPU_CTRL_SRST_HOLD | \
+ VSC73XX_ICPU_CTRL_BOOT_EN | \
+ VSC73XX_ICPU_CTRL_EXT_ACC_EN)
+
+#define VSC73XX_ICPU_CTRL_START (VSC73XX_ICPU_CTRL_CLK_DIV | \
+ VSC73XX_ICPU_CTRL_BOOT_EN | \
+ VSC73XX_ICPU_CTRL_CLK_EN | \
+ VSC73XX_ICPU_CTRL_SRST)
+
+#define VSC7385_ADVPORTM_MASK (VSC73XX_ADVPORTM_IFG_PPM | \
+ VSC73XX_ADVPORTM_EXC_COL_CONT | \
+ VSC73XX_ADVPORTM_EXT_PORT | \
+ VSC73XX_ADVPORTM_INV_GTX | \
+ VSC73XX_ADVPORTM_ENA_GTX | \
+ VSC73XX_ADVPORTM_DDR_MODE | \
+ VSC73XX_ADVPORTM_IO_LOOPBACK | \
+ VSC73XX_ADVPORTM_HOST_LOOPBACK)
+
+#define VSC7385_ADVPORTM_INIT (VSC73XX_ADVPORTM_EXT_PORT | \
+ VSC73XX_ADVPORTM_ENA_GTX | \
+ VSC73XX_ADVPORTM_DDR_MODE)
+
+#define VSC7385_MAC_CFG_RESET (VSC73XX_MAC_CFG_PORT_RST | \
+ VSC73XX_MAC_CFG_MAC_RX_RST | \
+ VSC73XX_MAC_CFG_MAC_TX_RST)
+
+#define VSC7385_MAC_CFG_INIT (VSC73XX_MAC_CFG_TX_EN | \
+ VSC73XX_MAC_CFG_FDX | \
+ VSC73XX_MAC_CFG_GIGE | \
+ VSC73XX_MAC_CFG_RX_EN | \
+ VSC73XX_MAC_CFG_TX_IPG(6) | \
+ 4)
+
+#define VSC73XX_RESET_DELAY 100
+
+struct vsc7385 {
+ struct spi_device *spi;
+ struct mutex lock;
+ struct vsc7385_platform_data *pdata;
+};
+
+static int vsc7385_is_addr_valid(u8 block, u8 subblock)
+{
+ switch (block) {
+ case VSC73XX_BLOCK_MAC:
+ switch (subblock) {
+ case 0 ... 4:
+ case 6:
+ return 1;
+ }
+ break;
+
+ case VSC73XX_BLOCK_2:
+ case VSC73XX_BLOCK_SYSTEM:
+ switch (subblock) {
+ case 0:
+ return 1;
+ }
+ break;
+
+ case VSC73XX_BLOCK_MII:
+ case VSC73XX_BLOCK_4:
+ case VSC73XX_BLOCK_5:
+ switch (subblock) {
+ case 0 ... 1:
+ return 1;
+ }
+ break;
+ }
+
+ return 0;
+}
+
+static inline u8 vsc7385_make_addr(u8 mode, u8 block, u8 subblock)
+{
+ u8 ret;
+
+ ret = (block & VSC73XX_CMD_BLOCK_MASK) << VSC73XX_CMD_BLOCK_SHIFT;
+ ret |= (mode & 1) << VSC73XX_CMD_MODE_SHIFT;
+ ret |= subblock & VSC73XX_CMD_SUBBLOCK_MASK;
+
+ return ret;
+}
+
+static int vsc7385_read(struct vsc7385 *vsc, u8 block, u8 subblock, u8 reg,
+ u32 *value)
+{
+ u8 cmd[4];
+ u8 buf[4];
+ struct spi_transfer t[2];
+ struct spi_message m;
+ int err;
+
+ if (!vsc7385_is_addr_valid(block, subblock))
+ return -EINVAL;
+
+ spi_message_init(&m);
+
+ memset(&t, 0, sizeof(t));
+
+ t[0].tx_buf = cmd;
+ t[0].len = sizeof(cmd);
+ spi_message_add_tail(&t[0], &m);
+
+ t[1].rx_buf = buf;
+ t[1].len = sizeof(buf);
+ spi_message_add_tail(&t[1], &m);
+
+ cmd[0] = vsc7385_make_addr(VSC73XX_CMD_MODE_READ, block, subblock);
+ cmd[1] = reg;
+ cmd[2] = 0;
+ cmd[3] = 0;
+
+ mutex_lock(&vsc->lock);
+ err = spi_sync(vsc->spi, &m);
+ mutex_unlock(&vsc->lock);
+
+ if (err)
+ return err;
+
+ *value = (((u32) buf[0]) << 24) | (((u32) buf[1]) << 16) |
+ (((u32) buf[2]) << 8) | ((u32) buf[3]);
+
+ return 0;
+}
+
+
+static int vsc7385_write(struct vsc7385 *vsc, u8 block, u8 subblock, u8 reg,
+ u32 value)
+{
+ u8 cmd[2];
+ u8 buf[4];
+ struct spi_transfer t[2];
+ struct spi_message m;
+ int err;
+
+ if (!vsc7385_is_addr_valid(block, subblock))
+ return -EINVAL;
+
+ spi_message_init(&m);
+
+ memset(&t, 0, sizeof(t));
+
+ t[0].tx_buf = cmd;
+ t[0].len = sizeof(cmd);
+ spi_message_add_tail(&t[0], &m);
+
+ t[1].tx_buf = buf;
+ t[1].len = sizeof(buf);
+ spi_message_add_tail(&t[1], &m);
+
+ cmd[0] = vsc7385_make_addr(VSC73XX_CMD_MODE_WRITE, block, subblock);
+ cmd[1] = reg;
+
+ buf[0] = (value >> 24) & 0xff;
+ buf[1] = (value >> 16) & 0xff;
+ buf[2] = (value >> 8) & 0xff;
+ buf[3] = value & 0xff;
+
+ mutex_lock(&vsc->lock);
+ err = spi_sync(vsc->spi, &m);
+ mutex_unlock(&vsc->lock);
+
+ return err;
+}
+
+static inline int vsc7385_write_verify(struct vsc7385 *vsc, u8 block,
+ u8 subblock, u8 reg, u32 value,
+ u32 read_mask, u32 read_val)
+{
+ struct spi_device *spi = vsc->spi;
+ u32 t;
+ int err;
+
+ err = vsc7385_write(vsc, block, subblock, reg, value);
+ if (err)
+ return err;
+
+ err = vsc7385_read(vsc, block, subblock, reg, &t);
+ if (err)
+ return err;
+
+ if ((t & read_mask) != read_val) {
+ dev_err(&spi->dev, "register write error\n");
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static inline int vsc7385_set_clock_delay(struct vsc7385 *vsc, u32 val)
+{
+ return vsc7385_write(vsc, VSC73XX_BLOCK_SYSTEM, 0,
+ VSC73XX_ICPU_CLOCK_DELAY, val);
+}
+
+static inline int vsc7385_get_clock_delay(struct vsc7385 *vsc, u32 *val)
+{
+ return vsc7385_read(vsc, VSC73XX_BLOCK_SYSTEM, 0,
+ VSC73XX_ICPU_CLOCK_DELAY, val);
+}
+
+static inline int vsc7385_icpu_stop(struct vsc7385 *vsc)
+{
+ return vsc7385_write(vsc, VSC73XX_BLOCK_SYSTEM, 0, VSC73XX_ICPU_CTRL,
+ VSC73XX_ICPU_CTRL_STOP);
+}
+
+static inline int vsc7385_icpu_start(struct vsc7385 *vsc)
+{
+ return vsc7385_write(vsc, VSC73XX_BLOCK_SYSTEM, 0, VSC73XX_ICPU_CTRL,
+ VSC73XX_ICPU_CTRL_START);
+}
+
+static inline int vsc7385_icpu_reset(struct vsc7385 *vsc)
+{
+ int rc;
+
+ rc = vsc7385_write(vsc, VSC73XX_BLOCK_SYSTEM, 0, VSC73XX_ICPU_ADDR,
+ 0x0000);
+ if (rc)
+ dev_err(&vsc->spi->dev,
+ "could not reset microcode, err=%d\n", rc);
+
+ return rc;
+}
+
+static int vsc7385_upload_ucode(struct vsc7385 *vsc)
+{
+ struct spi_device *spi = vsc->spi;
+ const struct firmware *firmware;
+ char *ucode_name;
+ unsigned char *dp;
+ unsigned int curVal;
+ int i;
+ int diffs;
+ int rc;
+
+ ucode_name = (vsc->pdata->ucode_name) ? vsc->pdata->ucode_name
+ : "vsc7385_ucode.bin";
+ rc = request_firmware(&firmware, ucode_name, &spi->dev);
+ if (rc) {
+ dev_err(&spi->dev, "request_firmware failed, err=%d\n",
+ rc);
+ return rc;
+ }
+
+ rc = vsc7385_icpu_stop(vsc);
+ if (rc)
+ goto out;
+
+ rc = vsc7385_icpu_reset(vsc);
+ if (rc)
+ goto out;
+
+ dev_info(&spi->dev, "uploading microcode...\n");
+
+ dp = (unsigned char *) firmware->data;
+ for (i = 0; i < firmware->size; i++) {
+ rc = vsc7385_write(vsc, VSC73XX_BLOCK_SYSTEM, 0,
+ VSC73XX_ICPU_SRAM, *dp++);
+ if (rc) {
+ dev_err(&spi->dev, "could not load microcode, err=%d\n",
+ rc);
+ goto out;
+ }
+ }
+
+ rc = vsc7385_icpu_reset(vsc);
+ if (rc)
+ goto out;
+
+ dev_info(&spi->dev, "verifying microcode...\n");
+
+ dp = (unsigned char *) firmware->data;
+ diffs = 0;
+ for (i = 0; i < firmware->size; i++) {
+ rc = vsc7385_read(vsc, VSC73XX_BLOCK_SYSTEM, 0,
+ VSC73XX_ICPU_SRAM, &curVal);
+ if (rc) {
+ dev_err(&spi->dev, "could not read microcode %d\n",rc);
+ goto out;
+ }
+
+ if (curVal > 0xff) {
+ dev_err(&spi->dev, "bad val read: %04x : %02x %02x\n",
+ i, *dp, curVal);
+ rc = -EIO;
+ goto out;
+ }
+
+ if ((curVal & 0xff) != *dp) {
+ diffs++;
+ dev_err(&spi->dev, "verify error: %04x : %02x %02x\n",
+ i, *dp, curVal);
+
+ if (diffs > 4)
+ break;
+ }
+ dp++;
+ }
+
+ if (diffs) {
+ dev_err(&spi->dev, "microcode verification failed\n");
+ rc = -EIO;
+ goto out;
+ }
+
+ dev_info(&spi->dev, "microcode uploaded\n");
+
+ rc = vsc7385_icpu_start(vsc);
+
+ out:
+ release_firmware(firmware);
+ return rc;
+}
+
+static int vsc7385_setup(struct vsc7385 *vsc)
+{
+ int err;
+
+ err = vsc7385_write_verify(vsc, VSC73XX_BLOCK_SYSTEM, 0,
+ VSC73XX_ICPU_CLOCK_DELAY,
+ VSC7385_CLOCK_DELAY,
+ VSC7385_CLOCK_DELAY_MASK,
+ VSC7385_CLOCK_DELAY);
+ if (err)
+ goto err;
+
+ err = vsc7385_write_verify(vsc, VSC73XX_BLOCK_MAC,
+ VSC73XX_SUBBLOCK_PORT_MAC, VSC73XX_ADVPORTM,
+ VSC7385_ADVPORTM_INIT,
+ VSC7385_ADVPORTM_MASK,
+ VSC7385_ADVPORTM_INIT);
+ if (err)
+ goto err;
+
+ err = vsc7385_write(vsc, VSC73XX_BLOCK_MAC, VSC73XX_SUBBLOCK_PORT_MAC,
+ VSC73XX_MAC_CFG, VSC7385_MAC_CFG_RESET);
+ if (err)
+ goto err;
+
+ err = vsc7385_write(vsc, VSC73XX_BLOCK_MAC, VSC73XX_SUBBLOCK_PORT_MAC,
+ VSC73XX_MAC_CFG, VSC7385_MAC_CFG_INIT);
+ if (err)
+ goto err;
+
+ return 0;
+
+ err:
+ return err;
+}
+
+static int vsc7385_detect(struct vsc7385 *vsc)
+{
+ struct spi_device *spi = vsc->spi;
+ u32 t;
+ u32 id;
+ u32 rev;
+ int err;
+
+ err = vsc7385_read(vsc, VSC73XX_BLOCK_SYSTEM, 0,
+ VSC73XX_ICPU_MBOX_VAL, &t);
+ if (err) {
+ dev_err(&spi->dev, "unable to read mailbox, err=%d\n", err);
+ return err;
+ }
+
+ if (t == 0xffffffff) {
+ dev_dbg(&spi->dev, "assert chip reset\n");
+ if (vsc->pdata->reset)
+ vsc->pdata->reset();
+
+ }
+
+ err = vsc7385_read(vsc, VSC73XX_BLOCK_SYSTEM, 0,
+ VSC73XX_ICPU_CHIPID, &t);
+ if (err) {
+ dev_err(&spi->dev, "unable to read chip id, err=%d\n", err);
+ return err;
+ }
+
+ id = (t >> 12) & 0xffff;
+ switch (id) {
+ case 0x7385:
+ break;
+ default:
+ dev_err(&spi->dev, "unsupported chip, id=%04x\n", id);
+ return -ENODEV;
+ }
+
+ rev = (t >> 28) & 0xf;
+ dev_info(&spi->dev, "VSC%04X (rev. %d) switch found \n", id, rev);
+
+ return 0;
+}
+
+static int __devinit vsc7385_probe(struct spi_device *spi)
+{
+ struct vsc7385 *vsc;
+ struct vsc7385_platform_data *pdata;
+ int err;
+
+ printk(KERN_INFO DRV_DESC " version " DRV_VERSION"\n");
+
+ pdata = spi->dev.platform_data;
+ if (!pdata) {
+ dev_err(&spi->dev, "no platform data specified\n");
+ return-ENODEV;
+ }
+
+ vsc = kzalloc(sizeof(*vsc), GFP_KERNEL);
+ if (!vsc) {
+ dev_err(&spi->dev, "no memory for private data\n");
+ return-ENOMEM;
+ }
+
+ mutex_init(&vsc->lock);
+ vsc->pdata = pdata;
+ vsc->spi = spi_dev_get(spi);
+ dev_set_drvdata(&spi->dev, vsc);
+
+ spi->mode = SPI_MODE_0;
+ spi->bits_per_word = 8;
+ err = spi_setup(spi);
+ if (err) {
+ dev_err(&spi->dev, "spi_setup failed, err=%d \n", err);
+ goto err_drvdata;
+ }
+
+ err = vsc7385_detect(vsc);
+ if (err) {
+ dev_err(&spi->dev, "no chip found, err=%d \n", err);
+ goto err_drvdata;
+ }
+
+ err = vsc7385_upload_ucode(vsc);
+ if (err)
+ goto err_drvdata;
+
+ err = vsc7385_setup(vsc);
+ if (err)
+ goto err_drvdata;
+
+ return 0;
+
+ err_drvdata:
+ dev_set_drvdata(&spi->dev, NULL);
+ kfree(vsc);
+ return err;
+}
+
+static int __devexit vsc7385_remove(struct spi_device *spi)
+{
+ struct vsc7385_data *vsc;
+
+ vsc = dev_get_drvdata(&spi->dev);
+ dev_set_drvdata(&spi->dev, NULL);
+ kfree(vsc);
+
+ return 0;
+}
+
+static struct spi_driver vsc7385_driver = {
+ .driver = {
+ .name = DRV_NAME,
+ .bus = &spi_bus_type,
+ .owner = THIS_MODULE,
+ },
+ .probe = vsc7385_probe,
+ .remove = __devexit_p(vsc7385_remove),
+};
+
+static int __init vsc7385_init(void)
+{
+ return spi_register_driver(&vsc7385_driver);
+}
+module_init(vsc7385_init);
+
+static void __exit vsc7385_exit(void)
+{
+ spi_unregister_driver(&vsc7385_driver);
+}
+module_exit(vsc7385_exit);
+
+MODULE_DESCRIPTION(DRV_DESC);
+MODULE_VERSION(DRV_VERSION);
+MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");
+MODULE_LICENSE("GPL v2");
+
diff --git a/target/linux/ar71xx/files/include/linux/spi/vsc7385.h b/target/linux/ar71xx/files/include/linux/spi/vsc7385.h
index 907ca331ad..6d1bb132fa 100644
--- a/target/linux/ar71xx/files/include/linux/spi/vsc7385.h
+++ b/target/linux/ar71xx/files/include/linux/spi/vsc7385.h
@@ -10,5 +10,5 @@
struct vsc7385_platform_data {
void (* reset)(void);
- unsigned char *ucode_name;
+ char *ucode_name;
};
diff --git a/target/linux/ar71xx/patches-2.6.30/202-spi_vsc7385_driver.patch b/target/linux/ar71xx/patches-2.6.30/202-spi_vsc7385_driver.patch
new file mode 100644
index 0000000000..b071d5d21c
--- /dev/null
+++ b/target/linux/ar71xx/patches-2.6.30/202-spi_vsc7385_driver.patch
@@ -0,0 +1,24 @@
+--- a/drivers/spi/Kconfig
++++ b/drivers/spi/Kconfig
+@@ -272,6 +272,11 @@ config SPI_TLE62X0
+ sysfs interface, with each line presented as a kind of GPIO
+ exposing both switch control and diagnostic feedback.
+
++config SPI_VSC7385
++ tristate "Vitesse VSC7385 ethernet switch driver"
++ help
++ SPI driver for the Vitesse VSC7385 ethernet switch.
++
+ #
+ # Add new SPI protocol masters in alphabetical order above this line
+ #
+--- a/drivers/spi/Makefile
++++ b/drivers/spi/Makefile
+@@ -37,6 +37,7 @@ obj-$(CONFIG_SPI_SH_SCI) += spi_sh_sci.
+
+ # SPI protocol drivers (device/link on bus)
+ obj-$(CONFIG_SPI_SPIDEV) += spidev.o
++obj-$(CONFIG_SPI_VSC7385) += spi_vsc7385.o
+ obj-$(CONFIG_SPI_TLE62X0) += tle62x0.o
+ # ... add above this line ...
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 19:00:58 +0000