diff options
| author | Vignesh R <vigneshr@ti.com> | 2018-11-29 10:57:38 +0100 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2018-12-07 16:31:46 +0100 |
| commit | 0752d7013a5e266c8cf24a0205999f7f717caba3 (patch) | |
| tree | ca3ccf3e47e76015abd52a3904395995ef436035 /drivers/phy | |
| parent | 6c3af1f24e4b8ccbef20bc00b9529f4a325583f2 (diff) | |
phy: ti-pip3-phy: Add support for USB3 PHY
Add support to handle USB3 PHYs present on AM57xx/DRA7xx SoCs. This is
needed to move AM57xx to DM_USB.
Signed-off-by: Vignesh R <vigneshr@ti.com>
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Diffstat (limited to 'drivers/phy')
| -rw-r--r-- | drivers/phy/ti-pipe3-phy.c | 32 |
1 files changed, 24 insertions, 8 deletions
diff --git a/drivers/phy/ti-pipe3-phy.c b/drivers/phy/ti-pipe3-phy.c index b22bbaf985..e7e78e3c56 100644 --- a/drivers/phy/ti-pipe3-phy.c +++ b/drivers/phy/ti-pipe3-phy.c @@ -141,7 +141,7 @@ static int omap_pipe3_dpll_program(struct omap_pipe3 *pipe3) omap_pipe3_writel(pipe3->pll_ctrl_base, PLL_CONFIGURATION1, val); val = omap_pipe3_readl(pipe3->pll_ctrl_base, PLL_CONFIGURATION2); - val &= ~PLL_SELFREQDCO_MASK; + val &= ~(PLL_SELFREQDCO_MASK | PLL_IDLE); val |= dpll_params->freq << PLL_SELFREQDCO_SHIFT; omap_pipe3_writel(pipe3->pll_ctrl_base, PLL_CONFIGURATION2, val); @@ -265,10 +265,13 @@ static int pipe3_exit(struct phy *phy) return -EBUSY; } - val = readl(pipe3->pll_reset_reg); - writel(val | SATA_PLL_SOFT_RESET, pipe3->pll_reset_reg); - mdelay(1); - writel(val & ~SATA_PLL_SOFT_RESET, pipe3->pll_reset_reg); + if (pipe3->pll_reset_reg) { + val = readl(pipe3->pll_reset_reg); + writel(val | SATA_PLL_SOFT_RESET, pipe3->pll_reset_reg); + mdelay(1); + writel(val & ~SATA_PLL_SOFT_RESET, pipe3->pll_reset_reg); + } + return 0; } @@ -331,9 +334,11 @@ static int pipe3_phy_probe(struct udevice *dev) if (!pipe3->power_reg) return -EINVAL; - pipe3->pll_reset_reg = get_reg(dev, "syscon-pllreset"); - if (!pipe3->pll_reset_reg) - return -EINVAL; + if (device_is_compatible(dev, "ti,phy-pipe3-sata")) { + pipe3->pll_reset_reg = get_reg(dev, "syscon-pllreset"); + if (!pipe3->pll_reset_reg) + return -EINVAL; + } pipe3->dpll_map = (struct pipe3_dpll_map *)dev_get_driver_data(dev); @@ -350,8 +355,19 @@ static struct pipe3_dpll_map dpll_map_sata[] = { { }, /* Terminator */ }; +static struct pipe3_dpll_map dpll_map_usb[] = { + {12000000, {1250, 5, 4, 20, 0} }, /* 12 MHz */ + {16800000, {3125, 20, 4, 20, 0} }, /* 16.8 MHz */ + {19200000, {1172, 8, 4, 20, 65537} }, /* 19.2 MHz */ + {20000000, {1000, 7, 4, 10, 0} }, /* 20 MHz */ + {26000000, {1250, 12, 4, 20, 0} }, /* 26 MHz */ + {38400000, {3125, 47, 4, 20, 92843} }, /* 38.4 MHz */ + { }, /* Terminator */ +}; + static const struct udevice_id pipe3_phy_ids[] = { { .compatible = "ti,phy-pipe3-sata", .data = (ulong)&dpll_map_sata }, + { .compatible = "ti,omap-usb3", .data = (ulong)&dpll_map_usb}, { } }; |