diff options
| author |   Jerome Brunet <jbrunet@baylibre.com> | 2017-12-18 10:44:41 +0100 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2017-12-18 13:24:55 -0500 |
| commit | 00fd73eb29205c1c94805fe5e39a09135d870e96 (patch) | |
| tree | c7729c24af7aed29b50cec6527498d06d175dfc1 /drivers/net/phy/meson-gxl.c | |
| parent | net: phy: meson-gxl: check phy_write return value (diff) | |
| download | linux-dev-00fd73eb29205c1c94805fe5e39a09135d870e96.tar.xz linux-dev-00fd73eb29205c1c94805fe5e39a09135d870e96.zip | |
net: phy: meson-gxl: define control registers
Define registers and bits in meson-gxl PHY driver to make a bit
more human friendly. No functional change.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/phy/meson-gxl.c')
| -rw-r--r-- | drivers/net/phy/meson-gxl.c | 86 |
1 files changed, 66 insertions, 20 deletions
diff --git a/drivers/net/phy/meson-gxl.c b/drivers/net/phy/meson-gxl.c index 900606204c0a..61bcc17098d7 100644 --- a/drivers/net/phy/meson-gxl.c +++ b/drivers/net/phy/meson-gxl.c @@ -24,53 +24,95 @@ #include <linux/netdevice.h> #include <linux/bitfield.h> +#define TSTCNTL 20 +#define TSTCNTL_READ BIT(15) +#define TSTCNTL_WRITE BIT(14) +#define TSTCNTL_REG_BANK_SEL GENMASK(12, 11) +#define TSTCNTL_TEST_MODE BIT(10) +#define TSTCNTL_READ_ADDRESS GENMASK(9, 5) +#define TSTCNTL_WRITE_ADDRESS GENMASK(4, 0) +#define TSTREAD1 21 +#define TSTWRITE 23 + +#define BANK_ANALOG_DSP 0 +#define BANK_WOL 1 +#define BANK_BIST 3 + +/* Analog/DSP Registers */ +#define A6_CONFIG_REG 0x17 + +/* WOL Registers */ +#define LPI_STATUS 0xc +#define LPI_STATUS_RSV12 BIT(12) + +/* BIST Registers */ +#define FR_PLL_CONTROL 0x1b +#define FR_PLL_DIV0 0x1c +#define FR_PLL_DIV1 0x1d + static int meson_gxl_config_init(struct phy_device *phydev) { int ret; /* Enable Analog and DSP register Bank access by */ - ret = phy_write(phydev, 0x14, 0x0000); + ret = phy_write(phydev, TSTCNTL, 0); if (ret) return ret; - ret = phy_write(phydev, 0x14, 0x0400); + ret = phy_write(phydev, TSTCNTL, TSTCNTL_TEST_MODE); if (ret) return ret; - ret = phy_write(phydev, 0x14, 0x0000); + ret = phy_write(phydev, TSTCNTL, 0); if (ret) return ret; - ret = phy_write(phydev, 0x14, 0x0400); + ret = phy_write(phydev, TSTCNTL, TSTCNTL_TEST_MODE); if (ret) return ret; - /* Write Analog register 23 */ - ret = phy_write(phydev, 0x17, 0x8E0D); + /* Write CONFIG_A6*/ + ret = phy_write(phydev, TSTWRITE, 0x8e0d); if (ret) return ret; - ret = phy_write(phydev, 0x14, 0x4417); + ret = phy_write(phydev, TSTCNTL, + TSTCNTL_WRITE + | FIELD_PREP(TSTCNTL_REG_BANK_SEL, BANK_ANALOG_DSP) + | TSTCNTL_TEST_MODE + | FIELD_PREP(TSTCNTL_WRITE_ADDRESS, A6_CONFIG_REG)); if (ret) return ret; /* Enable fractional PLL */ - ret = phy_write(phydev, 0x17, 0x0005); + ret = phy_write(phydev, TSTWRITE, 0x0005); if (ret) return ret; - ret = phy_write(phydev, 0x14, 0x5C1B); + ret = phy_write(phydev, TSTCNTL, + TSTCNTL_WRITE + | FIELD_PREP(TSTCNTL_REG_BANK_SEL, BANK_BIST) + | TSTCNTL_TEST_MODE + | FIELD_PREP(TSTCNTL_WRITE_ADDRESS, FR_PLL_CONTROL)); if (ret) return ret; /* Program fraction FR_PLL_DIV1 */ - ret = phy_write(phydev, 0x17, 0x029A); + ret = phy_write(phydev, TSTWRITE, 0x029a); if (ret) return ret; - ret = phy_write(phydev, 0x14, 0x5C1D); + ret = phy_write(phydev, TSTCNTL, + TSTCNTL_WRITE + | FIELD_PREP(TSTCNTL_REG_BANK_SEL, BANK_BIST) + | TSTCNTL_TEST_MODE + | FIELD_PREP(TSTCNTL_WRITE_ADDRESS, FR_PLL_DIV1)); if (ret) return ret; /* Program fraction FR_PLL_DIV1 */ - ret = phy_write(phydev, 0x17, 0xAAAA); + ret = phy_write(phydev, TSTWRITE, 0xaaaa); if (ret) return ret; - ret = phy_write(phydev, 0x14, 0x5C1C); + ret = phy_write(phydev, TSTCNTL, + TSTCNTL_WRITE + | FIELD_PREP(TSTCNTL_REG_BANK_SEL, BANK_BIST) + | TSTCNTL_TEST_MODE + | FIELD_PREP(TSTCNTL_WRITE_ADDRESS, FR_PLL_DIV0)); if (ret) return ret; @@ -105,26 +147,30 @@ static int meson_gxl_read_status(struct phy_device *phydev) goto read_status_continue; /* Need to access WOL bank, make sure the access is open */ - ret = phy_write(phydev, 0x14, 0x0000); + ret = phy_write(phydev, TSTCNTL, 0); if (ret) return ret; - ret = phy_write(phydev, 0x14, 0x0400); + ret = phy_write(phydev, TSTCNTL, TSTCNTL_TEST_MODE); if (ret) return ret; - ret = phy_write(phydev, 0x14, 0x0000); + ret = phy_write(phydev, TSTCNTL, 0); if (ret) return ret; - ret = phy_write(phydev, 0x14, 0x0400); + ret = phy_write(phydev, TSTCNTL, TSTCNTL_TEST_MODE); if (ret) return ret; /* Request LPI_STATUS WOL register */ - ret = phy_write(phydev, 0x14, 0x8D80); + ret = phy_write(phydev, TSTCNTL, + TSTCNTL_READ + | FIELD_PREP(TSTCNTL_REG_BANK_SEL, BANK_WOL) + | TSTCNTL_TEST_MODE + | FIELD_PREP(TSTCNTL_READ_ADDRESS, LPI_STATUS)); if (ret) return ret; /* Read LPI_STATUS value */ - wol = phy_read(phydev, 0x15); + wol = phy_read(phydev, TSTREAD1); if (wol < 0) return wol; @@ -136,7 +182,7 @@ static int meson_gxl_read_status(struct phy_device *phydev) if (exp < 0) return exp; - if (!(wol & BIT(12)) || + if (!(wol & LPI_STATUS_RSV12) || ((exp & EXPANSION_NWAY) && !(lpa & LPA_LPACK))) { /* Looks like aneg failed after all */ phydev_dbg(phydev, "LPA corruption - aneg restart\n"); |