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add definitions for some magic values in the spi_vsc7385 driver

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SVN-Revision: 16779
This commit is contained in:
Gabor Juhos 2009-07-11 14:56:54 +00:00
parent cbed3ebe1a
commit 292775eb34
1 changed files with 12 additions and 3 deletions
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15
target/linux/ar71xx/files/drivers/spi/spi_vsc7385.c
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@ -102,6 +102,13 @@
#define VSC73XX_ICPU_CTRL_CLK_EN (1 << 1) #define VSC73XX_ICPU_CTRL_CLK_EN (1 << 1)
#define VSC73XX_ICPU_CTRL_SRST (1 << 0) #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_READ 0
#define VSC73XX_CMD_MODE_WRITE 1 #define VSC73XX_CMD_MODE_WRITE 1
#define VSC73XX_CMD_MODE_SHIFT 4 #define VSC73XX_CMD_MODE_SHIFT 4
@ -494,16 +501,18 @@ static int vsc7385_detect(struct vsc7385 *vsc)
return err; return err;
} }
id = (t >> 12) & 0xffff; id = (t >> VSC73XX_ICPU_CHIPID_ID_SHIFT) & VSC73XX_ICPU_CHIPID_ID_MASK;
switch (id) { switch (id) {
case 0x7385: case VSC73XX_ICPU_CHIPID_ID_7385:
case VSC73XX_ICPU_CHIPID_ID_7395:
break; break;
default: default:
dev_err(&spi->dev, "unsupported chip, id=%04x\n", id); dev_err(&spi->dev, "unsupported chip, id=%04x\n", id);
return -ENODEV; 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); dev_info(&spi->dev, "VSC%04X (rev. %d) switch found \n", id, rev);
return 0; return 0;