+// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/
* Written by Jean-Jacques Hiblot <jjhiblot@ti.com>
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/arch/sys_proto.h>
#include <syscon.h>
#include <regmap.h>
+#include <linux/err.h>
/* PLLCTRL Registers */
#define PLL_STATUS 0x00000004
#define SATA_PLL_SOFT_RESET (1<<18)
/* PHY POWER CONTROL Register */
-#define OMAP_CTRL_PIPE3_PHY_PWRCTL_CLK_CMD_MASK 0x003FC000
-#define OMAP_CTRL_PIPE3_PHY_PWRCTL_CLK_CMD_SHIFT 0xE
-
-#define OMAP_CTRL_PIPE3_PHY_PWRCTL_CLK_FREQ_MASK 0xFFC00000
-#define OMAP_CTRL_PIPE3_PHY_PWRCTL_CLK_FREQ_SHIFT 0x16
-
-#define OMAP_CTRL_PIPE3_PHY_TX_RX_POWERON 0x3
-#define OMAP_CTRL_PIPE3_PHY_TX_RX_POWEROFF 0x0
-
+#define PIPE3_PHY_PWRCTL_CLK_CMD_MASK GENMASK(21, 14)
+#define PIPE3_PHY_PWRCTL_CLK_CMD_SHIFT 14
+
+#define PIPE3_PHY_PWRCTL_CLK_FREQ_MASK GENMASK(31, 22)
+#define PIPE3_PHY_PWRCTL_CLK_FREQ_SHIFT 22
+
+#define PIPE3_PHY_RX_POWERON (0x1 << PIPE3_PHY_PWRCTL_CLK_CMD_SHIFT)
+#define PIPE3_PHY_TX_POWERON (0x2 << PIPE3_PHY_PWRCTL_CLK_CMD_SHIFT)
+
+/* PHY RX Registers */
+#define PIPE3_PHY_RX_ANA_PROGRAMMABILITY 0x0000000C
+#define INTERFACE_MASK GENMASK(31, 27)
+#define INTERFACE_SHIFT 27
+#define INTERFACE_MODE_USBSS BIT(4)
+#define INTERFACE_MODE_SATA_1P5 BIT(3)
+#define INTERFACE_MODE_SATA_3P0 BIT(2)
+#define INTERFACE_MODE_PCIE BIT(0)
+
+#define LOSD_MASK GENMASK(17, 14)
+#define LOSD_SHIFT 14
+#define MEM_PLLDIV GENMASK(6, 5)
+
+#define PIPE3_PHY_RX_TRIM 0x0000001C
+#define MEM_DLL_TRIM_SEL_MASK GENMASK(31, 30)
+#define MEM_DLL_TRIM_SHIFT 30
+
+#define PIPE3_PHY_RX_DLL 0x00000024
+#define MEM_DLL_PHINT_RATE_MASK GENMASK(31, 30)
+#define MEM_DLL_PHINT_RATE_SHIFT 30
+
+#define PIPE3_PHY_RX_DIGITAL_MODES 0x00000028
+#define MEM_HS_RATE_MASK GENMASK(28, 27)
+#define MEM_HS_RATE_SHIFT 27
+#define MEM_OVRD_HS_RATE BIT(26)
+#define MEM_OVRD_HS_RATE_SHIFT 26
+#define MEM_CDR_FASTLOCK BIT(23)
+#define MEM_CDR_FASTLOCK_SHIFT 23
+#define MEM_CDR_LBW_MASK GENMASK(22, 21)
+#define MEM_CDR_LBW_SHIFT 21
+#define MEM_CDR_STEPCNT_MASK GENMASK(20, 19)
+#define MEM_CDR_STEPCNT_SHIFT 19
+#define MEM_CDR_STL_MASK GENMASK(18, 16)
+#define MEM_CDR_STL_SHIFT 16
+#define MEM_CDR_THR_MASK GENMASK(15, 13)
+#define MEM_CDR_THR_SHIFT 13
+#define MEM_CDR_THR_MODE BIT(12)
+#define MEM_CDR_THR_MODE_SHIFT 12
+#define MEM_CDR_2NDO_SDM_MODE BIT(11)
+#define MEM_CDR_2NDO_SDM_MODE_SHIFT 11
+
+#define PIPE3_PHY_RX_EQUALIZER 0x00000038
+#define MEM_EQLEV_MASK GENMASK(31, 16)
+#define MEM_EQLEV_SHIFT 16
+#define MEM_EQFTC_MASK GENMASK(15, 11)
+#define MEM_EQFTC_SHIFT 11
+#define MEM_EQCTL_MASK GENMASK(10, 7)
+#define MEM_EQCTL_SHIFT 7
+#define MEM_OVRD_EQLEV BIT(2)
+#define MEM_OVRD_EQLEV_SHIFT 2
+#define MEM_OVRD_EQFTC BIT(1)
+#define MEM_OVRD_EQFTC_SHIFT 1
+
+#define SATA_PHY_RX_IO_AND_A2D_OVERRIDES 0x44
+#define MEM_CDR_LOS_SOURCE_MASK GENMASK(10, 9)
+#define MEM_CDR_LOS_SOURCE_SHIFT 9
#define PLL_IDLE_TIME 100 /* in milliseconds */
#define PLL_LOCK_TIME 100 /* in milliseconds */
+enum pipe3_mode { PIPE3_MODE_PCIE = 1,
+ PIPE3_MODE_SATA,
+ PIPE3_MODE_USBSS };
+
+struct pipe3_settings {
+ u8 ana_interface;
+ u8 ana_losd;
+ u8 dig_fastlock;
+ u8 dig_lbw;
+ u8 dig_stepcnt;
+ u8 dig_stl;
+ u8 dig_thr;
+ u8 dig_thr_mode;
+ u8 dig_2ndo_sdm_mode;
+ u8 dig_hs_rate;
+ u8 dig_ovrd_hs_rate;
+ u8 dll_trim_sel;
+ u8 dll_phint_rate;
+ u8 eq_lev;
+ u8 eq_ftc;
+ u8 eq_ctl;
+ u8 eq_ovrd_lev;
+ u8 eq_ovrd_ftc;
+};
+
struct omap_pipe3 {
void __iomem *pll_ctrl_base;
+ void __iomem *phy_rx;
void __iomem *power_reg;
void __iomem *pll_reset_reg;
struct pipe3_dpll_map *dpll_map;
+ enum pipe3_mode mode;
+ struct pipe3_settings settings;
};
-
struct pipe3_dpll_params {
u16 m;
u8 n;
struct pipe3_dpll_params params;
};
+struct pipe3_data {
+ enum pipe3_mode mode;
+ struct pipe3_dpll_map *dpll_map;
+ struct pipe3_settings settings;
+};
+
static inline u32 omap_pipe3_readl(void __iomem *addr, unsigned offset)
{
return readl(addr + offset);
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);
rate = rate/1000000;
if (on) {
- val &= ~(OMAP_CTRL_PIPE3_PHY_PWRCTL_CLK_CMD_MASK |
- OMAP_CTRL_PIPE3_PHY_PWRCTL_CLK_FREQ_MASK);
- val |= OMAP_CTRL_PIPE3_PHY_TX_RX_POWERON <<
- OMAP_CTRL_PIPE3_PHY_PWRCTL_CLK_CMD_SHIFT;
- val |= rate <<
- OMAP_CTRL_PIPE3_PHY_PWRCTL_CLK_FREQ_SHIFT;
+ val &= ~(PIPE3_PHY_PWRCTL_CLK_CMD_MASK |
+ PIPE3_PHY_PWRCTL_CLK_FREQ_MASK);
+ val |= rate << PIPE3_PHY_PWRCTL_CLK_FREQ_SHIFT;
+ writel(val, pipe3->power_reg);
+
+ /* Power up TX before RX for SATA & USB */
+ val |= PIPE3_PHY_TX_POWERON;
+ writel(val, pipe3->power_reg);
+
+ val |= PIPE3_PHY_RX_POWERON;
+ writel(val, pipe3->power_reg);
} else {
- val &= ~OMAP_CTRL_PIPE3_PHY_PWRCTL_CLK_CMD_MASK;
- val |= OMAP_CTRL_PIPE3_PHY_TX_RX_POWEROFF <<
- OMAP_CTRL_PIPE3_PHY_PWRCTL_CLK_CMD_SHIFT;
+ val &= ~PIPE3_PHY_PWRCTL_CLK_CMD_MASK;
+ writel(val, pipe3->power_reg);
}
+}
- writel(val, pipe3->power_reg);
+static void ti_pipe3_calibrate(struct omap_pipe3 *phy)
+{
+ u32 val;
+ struct pipe3_settings *s = &phy->settings;
+
+ val = omap_pipe3_readl(phy->phy_rx, PIPE3_PHY_RX_ANA_PROGRAMMABILITY);
+ val &= ~(INTERFACE_MASK | LOSD_MASK | MEM_PLLDIV);
+ val = (s->ana_interface << INTERFACE_SHIFT | s->ana_losd << LOSD_SHIFT);
+ omap_pipe3_writel(phy->phy_rx, PIPE3_PHY_RX_ANA_PROGRAMMABILITY, val);
+
+ val = omap_pipe3_readl(phy->phy_rx, PIPE3_PHY_RX_DIGITAL_MODES);
+ val &= ~(MEM_HS_RATE_MASK | MEM_OVRD_HS_RATE | MEM_CDR_FASTLOCK |
+ MEM_CDR_LBW_MASK | MEM_CDR_STEPCNT_MASK | MEM_CDR_STL_MASK |
+ MEM_CDR_THR_MASK | MEM_CDR_THR_MODE | MEM_CDR_2NDO_SDM_MODE);
+ val |= s->dig_hs_rate << MEM_HS_RATE_SHIFT |
+ s->dig_ovrd_hs_rate << MEM_OVRD_HS_RATE_SHIFT |
+ s->dig_fastlock << MEM_CDR_FASTLOCK_SHIFT |
+ s->dig_lbw << MEM_CDR_LBW_SHIFT |
+ s->dig_stepcnt << MEM_CDR_STEPCNT_SHIFT |
+ s->dig_stl << MEM_CDR_STL_SHIFT |
+ s->dig_thr << MEM_CDR_THR_SHIFT |
+ s->dig_thr_mode << MEM_CDR_THR_MODE_SHIFT |
+ s->dig_2ndo_sdm_mode << MEM_CDR_2NDO_SDM_MODE_SHIFT;
+ omap_pipe3_writel(phy->phy_rx, PIPE3_PHY_RX_DIGITAL_MODES, val);
+
+ val = omap_pipe3_readl(phy->phy_rx, PIPE3_PHY_RX_TRIM);
+ val &= ~MEM_DLL_TRIM_SEL_MASK;
+ val |= s->dll_trim_sel << MEM_DLL_TRIM_SHIFT;
+ omap_pipe3_writel(phy->phy_rx, PIPE3_PHY_RX_TRIM, val);
+
+ val = omap_pipe3_readl(phy->phy_rx, PIPE3_PHY_RX_DLL);
+ val &= ~MEM_DLL_PHINT_RATE_MASK;
+ val |= s->dll_phint_rate << MEM_DLL_PHINT_RATE_SHIFT;
+ omap_pipe3_writel(phy->phy_rx, PIPE3_PHY_RX_DLL, val);
+
+ val = omap_pipe3_readl(phy->phy_rx, PIPE3_PHY_RX_EQUALIZER);
+ val &= ~(MEM_EQLEV_MASK | MEM_EQFTC_MASK | MEM_EQCTL_MASK |
+ MEM_OVRD_EQLEV | MEM_OVRD_EQFTC);
+ val |= s->eq_lev << MEM_EQLEV_SHIFT |
+ s->eq_ftc << MEM_EQFTC_SHIFT |
+ s->eq_ctl << MEM_EQCTL_SHIFT |
+ s->eq_ovrd_lev << MEM_OVRD_EQLEV_SHIFT |
+ s->eq_ovrd_ftc << MEM_OVRD_EQFTC_SHIFT;
+ omap_pipe3_writel(phy->phy_rx, PIPE3_PHY_RX_EQUALIZER, val);
+
+ if (phy->mode == PIPE3_MODE_SATA) {
+ val = omap_pipe3_readl(phy->phy_rx,
+ SATA_PHY_RX_IO_AND_A2D_OVERRIDES);
+ val &= ~MEM_CDR_LOS_SOURCE_MASK;
+ omap_pipe3_writel(phy->phy_rx, SATA_PHY_RX_IO_AND_A2D_OVERRIDES,
+ val);
+ }
}
static int pipe3_init(struct phy *phy)
ret = omap_pipe3_dpll_program(pipe3);
if (ret)
return ret;
+
+ ti_pipe3_calibrate(pipe3);
} else {
/* else just bring it out of IDLE mode */
val = omap_pipe3_readl(pipe3->pll_ctrl_base,
} while (--timeout);
if (!(val & PLL_TICOPWDN) || !(val & PLL_LDOPWDN)) {
- error("%s: Failed to power down DPLL: PLL_STATUS 0x%x\n",
+ pr_err("%s: Failed to power down DPLL: PLL_STATUS 0x%x\n",
__func__, val);
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;
}
err = uclass_get_device_by_phandle(UCLASS_SYSCON, dev,
name, &syscon);
if (err) {
- error("unable to find syscon device for %s (%d)\n",
+ pr_err("unable to find syscon device for %s (%d)\n",
name, err);
return NULL;
}
regmap = syscon_get_regmap(syscon);
if (IS_ERR(regmap)) {
- error("unable to find regmap for %s (%ld)\n",
+ pr_err("unable to find regmap for %s (%ld)\n",
name, PTR_ERR(regmap));
return NULL;
}
cell = fdt_getprop(gd->fdt_blob, dev_of_offset(dev), name,
&len);
if (len < 2*sizeof(fdt32_t)) {
- error("offset not available for %s\n", name);
+ pr_err("offset not available for %s\n", name);
return NULL;
}
fdt_addr_t addr;
fdt_size_t sz;
struct omap_pipe3 *pipe3 = dev_get_priv(dev);
+ struct pipe3_data *data;
+
+ /* PHY_RX */
+ addr = devfdt_get_addr_size_index(dev, 0, &sz);
+ if (addr == FDT_ADDR_T_NONE) {
+ pr_err("missing phy_rx address\n");
+ return -EINVAL;
+ }
+
+ pipe3->phy_rx = map_physmem(addr, sz, MAP_NOCACHE);
+ if (!pipe3->phy_rx) {
+ pr_err("unable to remap phy_rx\n");
+ return -EINVAL;
+ }
+ /* PLLCTRL */
addr = devfdt_get_addr_size_index(dev, 2, &sz);
if (addr == FDT_ADDR_T_NONE) {
- error("missing pll ctrl address\n");
+ pr_err("missing pll ctrl address\n");
return -EINVAL;
}
pipe3->pll_ctrl_base = map_physmem(addr, sz, MAP_NOCACHE);
if (!pipe3->pll_ctrl_base) {
- error("unable to remap pll ctrl\n");
+ pr_err("unable to remap pll ctrl\n");
return -EINVAL;
}
if (!pipe3->power_reg)
return -EINVAL;
- pipe3->pll_reset_reg = get_reg(dev, "syscon-pllreset");
- if (!pipe3->pll_reset_reg)
- return -EINVAL;
+ data = (struct pipe3_data *)dev_get_driver_data(dev);
+ pipe3->mode = data->mode;
+ pipe3->dpll_map = data->dpll_map;
+ pipe3->settings = data->settings;
- pipe3->dpll_map = (struct pipe3_dpll_map *)dev_get_driver_data(dev);
+ if (pipe3->mode == PIPE3_MODE_SATA) {
+ pipe3->pll_reset_reg = get_reg(dev, "syscon-pllreset");
+ if (!pipe3->pll_reset_reg)
+ return -EINVAL;
+ }
return 0;
}
static struct pipe3_dpll_map dpll_map_sata[] = {
- {12000000, {1000, 7, 4, 6, 0} }, /* 12 MHz */
- {16800000, {714, 7, 4, 6, 0} }, /* 16.8 MHz */
- {19200000, {625, 7, 4, 6, 0} }, /* 19.2 MHz */
- {20000000, {600, 7, 4, 6, 0} }, /* 20 MHz */
- {26000000, {461, 7, 4, 6, 0} }, /* 26 MHz */
- {38400000, {312, 7, 4, 6, 0} }, /* 38.4 MHz */
- { }, /* Terminator */
+ {12000000, {625, 4, 4, 6, 0} }, /* 12 MHz */
+ {16800000, {625, 6, 4, 7, 0} }, /* 16.8 MHz */
+ {19200000, {625, 7, 4, 6, 0} }, /* 19.2 MHz */
+ {20000000, {750, 9, 4, 6, 0} }, /* 20 MHz */
+ {26000000, {750, 12, 4, 6, 0} }, /* 26 MHz */
+ {38400000, {625, 15, 4, 6, 0} }, /* 38.4 MHz */
+ { }, /* 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 struct pipe3_data data_usb = {
+ .mode = PIPE3_MODE_USBSS,
+ .dpll_map = dpll_map_usb,
+ .settings = {
+ /* DRA75x TRM Table 26-17. Preferred USB3_PHY_RX SCP Register Settings */
+ .ana_interface = INTERFACE_MODE_USBSS,
+ .ana_losd = 0xa,
+ .dig_fastlock = 1,
+ .dig_lbw = 3,
+ .dig_stepcnt = 0,
+ .dig_stl = 0x3,
+ .dig_thr = 1,
+ .dig_thr_mode = 1,
+ .dig_2ndo_sdm_mode = 0,
+ .dig_hs_rate = 0,
+ .dig_ovrd_hs_rate = 1,
+ .dll_trim_sel = 0x2,
+ .dll_phint_rate = 0x3,
+ .eq_lev = 0,
+ .eq_ftc = 0,
+ .eq_ctl = 0x9,
+ .eq_ovrd_lev = 0,
+ .eq_ovrd_ftc = 0,
+ },
+};
+
+static struct pipe3_data data_sata = {
+ .mode = PIPE3_MODE_SATA,
+ .dpll_map = dpll_map_sata,
+ .settings = {
+ /* DRA75x TRM Table 26-9. Preferred SATA_PHY_RX SCP Register Settings */
+ .ana_interface = INTERFACE_MODE_SATA_3P0,
+ .ana_losd = 0x5,
+ .dig_fastlock = 1,
+ .dig_lbw = 3,
+ .dig_stepcnt = 0,
+ .dig_stl = 0x3,
+ .dig_thr = 1,
+ .dig_thr_mode = 1,
+ .dig_2ndo_sdm_mode = 0,
+ .dig_hs_rate = 0, /* Not in TRM preferred settings */
+ .dig_ovrd_hs_rate = 0, /* Not in TRM preferred settings */
+ .dll_trim_sel = 0x1,
+ .dll_phint_rate = 0x2, /* for 1.5 GHz DPLL clock */
+ .eq_lev = 0,
+ .eq_ftc = 0x1f,
+ .eq_ctl = 0,
+ .eq_ovrd_lev = 1,
+ .eq_ovrd_ftc = 1,
+ },
};
static const struct udevice_id pipe3_phy_ids[] = {
- { .compatible = "ti,phy-pipe3-sata", .data = (ulong)&dpll_map_sata },
+ { .compatible = "ti,phy-pipe3-sata", .data = (ulong)&data_sata },
+ { .compatible = "ti,omap-usb3", .data = (ulong)&data_usb},
{ }
};
projects / oweals / u-boot.git / blobdiff