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| author |   Helmut Buchsbaum <helmut.buchsbaum@gmail.com> | 2016-02-09 20:47:17 +0100 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2016-02-11 11:34:24 -0500 |
| commit | c0e6cb1fed5a7390ac84396f6f43e70fc2034ac6 (patch) | |
| tree | be8bbee79b82b7e220fb50bc3914ae24d377bc1a /drivers/net/phy/spi_ks8995.c | |
| parent | net: phy: spi_ks8995: generalize creation of SPI commands (diff) | |
| download | linux-dev-c0e6cb1fed5a7390ac84396f6f43e70fc2034ac6.tar.xz linux-dev-c0e6cb1fed5a7390ac84396f6f43e70fc2034ac6.zip | |
net: phy: spi_ks8995: add support for MICREL KSZ8795CLX
Add support for MICREL KSZ8795CLX Integrated 5-Port, 10-/100-Managed
Ethernet Switch with Gigabit GMII/RGMII and MII/RMII interfaces.
Signed-off-by: Helmut Buchsbaum <helmut.buchsbaum@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/phy/spi_ks8995.c')
| -rw-r--r-- | drivers/net/phy/spi_ks8995.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/net/phy/spi_ks8995.c b/drivers/net/phy/spi_ks8995.c index 9dcc5b4fd9d1..5e7340f6b37c 100644 --- a/drivers/net/phy/spi_ks8995.c +++ b/drivers/net/phy/spi_ks8995.c @@ -77,6 +77,7 @@ #define KS8995_REGS_SIZE 0x80 #define KSZ8864_REGS_SIZE 0x100 +#define KSZ8795_REGS_SIZE 0x100 #define ID1_CHIPID_M 0xf #define ID1_CHIPID_S 4 @@ -85,9 +86,11 @@ #define ID1_START_SW 1 /* start the switch */ #define FAMILY_KS8995 0x95 +#define FAMILY_KSZ8795 0x87 #define CHIPID_M 0 #define KS8995_CHIP_ID 0x00 #define KSZ8864_CHIP_ID 0x01 +#define KSZ8795_CHIP_ID 0x09 #define KS8995_CMD_WRITE 0x02U #define KS8995_CMD_READ 0x03U @@ -97,6 +100,7 @@ enum ks8995_chip_variant { ks8995, ksz8864, + ksz8795, max_variant }; @@ -126,6 +130,14 @@ static const struct ks8995_chip_params ks8995_chip[] = { .addr_width = 8, .addr_shift = 0, }, + [ksz8795] = { + .name = "KSZ8795CLX", + .family_id = FAMILY_KSZ8795, + .chip_id = KSZ8795_CHIP_ID, + .regs_size = KSZ8795_REGS_SIZE, + .addr_width = 12, + .addr_shift = 1, + }, }; struct ks8995_pdata { @@ -145,6 +157,7 @@ struct ks8995_switch { static const struct spi_device_id ks8995_id[] = { {"ks8995", ks8995}, {"ksz8864", ksz8864}, + {"ksz8795", ksz8795}, { } }; MODULE_DEVICE_TABLE(spi, ks8995_id); @@ -358,6 +371,22 @@ static int ks8995_get_revision(struct ks8995_switch *ks) err = -ENODEV; } break; + case FAMILY_KSZ8795: + /* try reading chip id at CHIP ID1 */ + err = ks8995_read_reg(ks, KS8995_REG_ID1, &id1); + if (err) { + err = -EIO; + goto err_out; + } + + if (get_chip_id(id1) == ks->chip->chip_id) { + ks->revision_id = get_chip_rev(id1); + } else { + dev_err(&ks->spi->dev, "unsupported chip id for KSZ8795 family: 0x%02x\n", + id1); + err = -ENODEV; + } + break; default: dev_err(&ks->spi->dev, "unsupported family id: 0x%02x\n", id0); err = -ENODEV; |