diff options
Diffstat (limited to 'target/linux/ar71xx/files/drivers/spi')
| -rw-r--r-- | target/linux/ar71xx/files/drivers/spi/spi_vsc7385.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/target/linux/ar71xx/files/drivers/spi/spi_vsc7385.c b/target/linux/ar71xx/files/drivers/spi/spi_vsc7385.c index c270b0f05a..14952c663b 100644 --- a/target/linux/ar71xx/files/drivers/spi/spi_vsc7385.c +++ b/target/linux/ar71xx/files/drivers/spi/spi_vsc7385.c @@ -102,6 +102,13 @@ #define VSC73XX_ICPU_CTRL_CLK_EN (1 << 1) #define VSC73XX_ICPU_CTRL_SRST (1 << 0) +#define VSC73XX_ICPU_CHIPID_ID_SHIFT 12 +#define VSC73XX_ICPU_CHIPID_ID_MASK 0xffff +#define VSC73XX_ICPU_CHIPID_REV_SHIFT 28 +#define VSC73XX_ICPU_CHIPID_REV_MASK 0xf +#define VSC73XX_ICPU_CHIPID_ID_7385 0x7385 +#define VSC73XX_ICPU_CHIPID_ID_7395 0x7395 + #define VSC73XX_CMD_MODE_READ 0 #define VSC73XX_CMD_MODE_WRITE 1 #define VSC73XX_CMD_MODE_SHIFT 4 @@ -494,16 +501,18 @@ static int vsc7385_detect(struct vsc7385 *vsc) return err; } - id = (t >> 12) & 0xffff; + id = (t >> VSC73XX_ICPU_CHIPID_ID_SHIFT) & VSC73XX_ICPU_CHIPID_ID_MASK; switch (id) { - case 0x7385: + case VSC73XX_ICPU_CHIPID_ID_7385: + case VSC73XX_ICPU_CHIPID_ID_7395: break; default: dev_err(&spi->dev, "unsupported chip, id=%04x\n", id); return -ENODEV; } - rev = (t >> 28) & 0xf; + rev = (t >> VSC73XX_ICPU_CHIPID_REV_SHIFT) & + VSC73XX_ICPU_CHIPID_REV_MASK; dev_info(&spi->dev, "VSC%04X (rev. %d) switch found \n", id, rev); return 0; |