diff options
Diffstat (limited to 'drivers/phy/allwinner')
| -rw-r--r-- | drivers/phy/allwinner/phy-sun6i-mipi-dphy.c | 143 |
1 files changed, 142 insertions, 1 deletions
diff --git a/drivers/phy/allwinner/phy-sun6i-mipi-dphy.c b/drivers/phy/allwinner/phy-sun6i-mipi-dphy.c index ac144ee0f0a6..36eab95271b2 100644 --- a/drivers/phy/allwinner/phy-sun6i-mipi-dphy.c +++ b/drivers/phy/allwinner/phy-sun6i-mipi-dphy.c @@ -70,11 +70,19 @@ #define SUN6I_DPHY_ANA0_REG 0x4c #define SUN6I_DPHY_ANA0_REG_PWS BIT(31) +#define SUN6I_DPHY_ANA0_REG_PWEND BIT(30) +#define SUN6I_DPHY_ANA0_REG_PWENC BIT(29) #define SUN6I_DPHY_ANA0_REG_DMPC BIT(28) #define SUN6I_DPHY_ANA0_REG_DMPD(n) (((n) & 0xf) << 24) +#define SUN6I_DPHY_ANA0_REG_SRXDT(n) (((n) & 0xf) << 20) +#define SUN6I_DPHY_ANA0_REG_SRXCK(n) (((n) & 0xf) << 16) +#define SUN6I_DPHY_ANA0_REG_SDIV2 BIT(15) #define SUN6I_DPHY_ANA0_REG_SLV(n) (((n) & 7) << 12) #define SUN6I_DPHY_ANA0_REG_DEN(n) (((n) & 0xf) << 8) +#define SUN6I_DPHY_ANA0_REG_PLR(n) (((n) & 0xf) << 4) #define SUN6I_DPHY_ANA0_REG_SFB(n) (((n) & 3) << 2) +#define SUN6I_DPHY_ANA0_REG_RSD BIT(1) +#define SUN6I_DPHY_ANA0_REG_SELSCK BIT(0) #define SUN6I_DPHY_ANA1_REG 0x50 #define SUN6I_DPHY_ANA1_REG_VTTMODE BIT(31) @@ -97,8 +105,13 @@ #define SUN6I_DPHY_ANA3_EN_LDOR BIT(18) #define SUN6I_DPHY_ANA4_REG 0x5c +#define SUN6I_DPHY_ANA4_REG_EN_MIPI BIT(31) +#define SUN6I_DPHY_ANA4_REG_EN_COMTEST BIT(30) +#define SUN6I_DPHY_ANA4_REG_COMTEST(n) (((n) & 3) << 28) +#define SUN6I_DPHY_ANA4_REG_IB(n) (((n) & 3) << 25) #define SUN6I_DPHY_ANA4_REG_DMPLVC BIT(24) #define SUN6I_DPHY_ANA4_REG_DMPLVD(n) (((n) & 0xf) << 20) +#define SUN6I_DPHY_ANA4_REG_VTT_SET(n) (((n) & 0x7) << 17) #define SUN6I_DPHY_ANA4_REG_CKDV(n) (((n) & 0x1f) << 12) #define SUN6I_DPHY_ANA4_REG_TMSC(n) (((n) & 3) << 10) #define SUN6I_DPHY_ANA4_REG_TMSD(n) (((n) & 3) << 8) @@ -109,6 +122,56 @@ #define SUN6I_DPHY_DBG5_REG 0xf4 +#define SUN50I_DPHY_TX_SLEW_REG0 0xf8 +#define SUN50I_DPHY_TX_SLEW_REG1 0xfc +#define SUN50I_DPHY_TX_SLEW_REG2 0x100 + +#define SUN50I_DPHY_PLL_REG0 0x104 +#define SUN50I_DPHY_PLL_REG0_CP36_EN BIT(23) +#define SUN50I_DPHY_PLL_REG0_LDO_EN BIT(22) +#define SUN50I_DPHY_PLL_REG0_EN_LVS BIT(21) +#define SUN50I_DPHY_PLL_REG0_PLL_EN BIT(20) +#define SUN50I_DPHY_PLL_REG0_P(n) (((n) & 0xf) << 16) +#define SUN50I_DPHY_PLL_REG0_N(n) (((n) & 0xff) << 8) +#define SUN50I_DPHY_PLL_REG0_NDET BIT(7) +#define SUN50I_DPHY_PLL_REG0_TDIV BIT(6) +#define SUN50I_DPHY_PLL_REG0_M0(n) (((n) & 3) << 4) +#define SUN50I_DPHY_PLL_REG0_M1(n) ((n) & 0xf) + +#define SUN50I_DPHY_PLL_REG1 0x108 +#define SUN50I_DPHY_PLL_REG1_UNLOCK_MDSEL(n) (((n) & 3) << 14) +#define SUN50I_DPHY_PLL_REG1_LOCKMDSEL BIT(13) +#define SUN50I_DPHY_PLL_REG1_LOCKDET_EN BIT(12) +#define SUN50I_DPHY_PLL_REG1_VSETA(n) (((n) & 0x7) << 9) +#define SUN50I_DPHY_PLL_REG1_VSETD(n) (((n) & 0x7) << 6) +#define SUN50I_DPHY_PLL_REG1_LPF_SW BIT(5) +#define SUN50I_DPHY_PLL_REG1_ICP_SEL(n) (((n) & 3) << 3) +#define SUN50I_DPHY_PLL_REG1_ATEST_SEL(n) (((n) & 3) << 1) +#define SUN50I_DPHY_PLL_REG1_TEST_EN BIT(0) + +#define SUN50I_DPHY_PLL_REG2 0x10c +#define SUN50I_DPHY_PLL_REG2_SDM_EN BIT(31) +#define SUN50I_DPHY_PLL_REG2_FF_EN BIT(30) +#define SUN50I_DPHY_PLL_REG2_SS_EN BIT(29) +#define SUN50I_DPHY_PLL_REG2_SS_FRAC(n) (((n) & 0x1ff) << 20) +#define SUN50I_DPHY_PLL_REG2_SS_INT(n) (((n) & 0xff) << 12) +#define SUN50I_DPHY_PLL_REG2_FRAC(n) ((n) & 0xfff) + +#define SUN50I_COMBO_PHY_REG0 0x110 +#define SUN50I_COMBO_PHY_REG0_EN_TEST_COMBOLDO BIT(5) +#define SUN50I_COMBO_PHY_REG0_EN_TEST_0P8 BIT(4) +#define SUN50I_COMBO_PHY_REG0_EN_MIPI BIT(3) +#define SUN50I_COMBO_PHY_REG0_EN_LVDS BIT(2) +#define SUN50I_COMBO_PHY_REG0_EN_COMBOLDO BIT(1) +#define SUN50I_COMBO_PHY_REG0_EN_CP BIT(0) + +#define SUN50I_COMBO_PHY_REG1 0x114 +#define SUN50I_COMBO_PHY_REG2_REG_VREF1P6(n) (((n) & 0x7) << 4) +#define SUN50I_COMBO_PHY_REG2_REG_VREF0P8(n) ((n) & 0x7) + +#define SUN50I_COMBO_PHY_REG2 0x118 +#define SUN50I_COMBO_PHY_REG2_HS_STOP_DLY(n) ((n) & 0xff) + enum sun6i_dphy_direction { SUN6I_DPHY_DIRECTION_TX, SUN6I_DPHY_DIRECTION_RX, @@ -196,6 +259,76 @@ static void sun6i_a31_mipi_dphy_tx_power_on(struct sun6i_dphy *dphy) udelay(1); } +static void sun50i_a100_mipi_dphy_tx_power_on(struct sun6i_dphy *dphy) +{ + unsigned long mipi_symbol_rate = dphy->config.hs_clk_rate; + unsigned int div, n; + + regmap_write(dphy->regs, SUN6I_DPHY_ANA4_REG, + SUN6I_DPHY_ANA4_REG_IB(2) | + SUN6I_DPHY_ANA4_REG_DMPLVD(4) | + SUN6I_DPHY_ANA4_REG_VTT_SET(3) | + SUN6I_DPHY_ANA4_REG_CKDV(3) | + SUN6I_DPHY_ANA4_REG_TMSD(1) | + SUN6I_DPHY_ANA4_REG_TMSC(1) | + SUN6I_DPHY_ANA4_REG_TXPUSD(2) | + SUN6I_DPHY_ANA4_REG_TXPUSC(3) | + SUN6I_DPHY_ANA4_REG_TXDNSD(2) | + SUN6I_DPHY_ANA4_REG_TXDNSC(3)); + + regmap_update_bits(dphy->regs, SUN6I_DPHY_ANA2_REG, + SUN6I_DPHY_ANA2_EN_CK_CPU, + SUN6I_DPHY_ANA2_EN_CK_CPU); + + regmap_update_bits(dphy->regs, SUN6I_DPHY_ANA2_REG, + SUN6I_DPHY_ANA2_REG_ENIB, + SUN6I_DPHY_ANA2_REG_ENIB); + + regmap_write(dphy->regs, SUN6I_DPHY_ANA3_REG, + SUN6I_DPHY_ANA3_EN_LDOR | + SUN6I_DPHY_ANA3_EN_LDOC | + SUN6I_DPHY_ANA3_EN_LDOD); + + regmap_write(dphy->regs, SUN6I_DPHY_ANA0_REG, + SUN6I_DPHY_ANA0_REG_PLR(4) | + SUN6I_DPHY_ANA0_REG_SFB(1)); + + regmap_write(dphy->regs, SUN50I_COMBO_PHY_REG0, + SUN50I_COMBO_PHY_REG0_EN_CP); + + /* Choose a divider to limit the VCO frequency to around 2 GHz. */ + div = 16 >> order_base_2(DIV_ROUND_UP(mipi_symbol_rate, 264000000)); + n = mipi_symbol_rate * div / 24000000; + + regmap_write(dphy->regs, SUN50I_DPHY_PLL_REG0, + SUN50I_DPHY_PLL_REG0_CP36_EN | + SUN50I_DPHY_PLL_REG0_LDO_EN | + SUN50I_DPHY_PLL_REG0_EN_LVS | + SUN50I_DPHY_PLL_REG0_PLL_EN | + SUN50I_DPHY_PLL_REG0_NDET | + SUN50I_DPHY_PLL_REG0_P((div - 1) % 8) | + SUN50I_DPHY_PLL_REG0_N(n) | + SUN50I_DPHY_PLL_REG0_M0((div - 1) / 8) | + SUN50I_DPHY_PLL_REG0_M1(2)); + + /* Disable sigma-delta modulation. */ + regmap_write(dphy->regs, SUN50I_DPHY_PLL_REG2, 0); + + regmap_update_bits(dphy->regs, SUN6I_DPHY_ANA4_REG, + SUN6I_DPHY_ANA4_REG_EN_MIPI, + SUN6I_DPHY_ANA4_REG_EN_MIPI); + + regmap_update_bits(dphy->regs, SUN50I_COMBO_PHY_REG0, + SUN50I_COMBO_PHY_REG0_EN_MIPI | + SUN50I_COMBO_PHY_REG0_EN_COMBOLDO, + SUN50I_COMBO_PHY_REG0_EN_MIPI | + SUN50I_COMBO_PHY_REG0_EN_COMBOLDO); + + regmap_write(dphy->regs, SUN50I_COMBO_PHY_REG2, + SUN50I_COMBO_PHY_REG2_HS_STOP_DLY(20)); + udelay(1); +} + static int sun6i_dphy_tx_power_on(struct sun6i_dphy *dphy) { u8 lanes_mask = GENMASK(dphy->config.lanes - 1, 0); @@ -408,7 +541,7 @@ static const struct regmap_config sun6i_dphy_regmap_config = { .reg_bits = 32, .val_bits = 32, .reg_stride = 4, - .max_register = SUN6I_DPHY_DBG5_REG, + .max_register = SUN50I_COMBO_PHY_REG2, .name = "mipi-dphy", }; @@ -484,11 +617,19 @@ static const struct sun6i_dphy_variant sun6i_a31_mipi_dphy_variant = { .rx_supported = true, }; +static const struct sun6i_dphy_variant sun50i_a100_mipi_dphy_variant = { + .tx_power_on = sun50i_a100_mipi_dphy_tx_power_on, +}; + static const struct of_device_id sun6i_dphy_of_table[] = { { .compatible = "allwinner,sun6i-a31-mipi-dphy", .data = &sun6i_a31_mipi_dphy_variant, }, + { + .compatible = "allwinner,sun50i-a100-mipi-dphy", + .data = &sun50i_a100_mipi_dphy_variant, + }, { } }; MODULE_DEVICE_TABLE(of, sun6i_dphy_of_table); 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