1 files changed, 22 insertions, 409 deletions

diff --git a/arch/arm/mach-tegra/tegra124/xusb-padctl.c b/arch/arm/mach-tegra/tegra124/xusb-padctl.c
index 43af883f2c..76af924b94 100644
--- a/arch/arm/mach-tegra/tegra124/xusb-padctl.c
+++ b/arch/arm/mach-tegra/tegra124/xusb-padctl.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2014-2015, NVIDIA CORPORATION.  All rights reserved.
  *
  * SPDX-License-Identifier: GPL-2.0
  */
@@ -8,13 +8,8 @@
 
 #include <common.h>
 #include <errno.h>
-#include <fdtdec.h>
-#include <malloc.h>
 
-#include <asm/io.h>
-
-#include <asm/arch/clock.h>
-#include <asm/arch-tegra/xusb-padctl.h>
+#include "../xusb-padctl-common.h"
 
 #include <dt-bindings/pinctrl/pinctrl-tegra-xusb.h>
 
@@ -83,18 +78,6 @@ static const unsigned int tegra124_pci_functions[] = {
 	TEGRA124_FUNC_RSVD,
 };
 
-struct tegra_xusb_padctl_lane {
-	const char *name;
-
-	unsigned int offset;
-	unsigned int shift;
-	unsigned int mask;
-	unsigned int iddq;
-
-	const unsigned int *funcs;
-	unsigned int num_funcs;
-};
-
 #define TEGRA124_LANE(_name, _offset, _shift, _mask, _iddq, _funcs)	\
 	{								\
 		.name = _name,						\
@@ -121,74 +104,6 @@ static const struct tegra_xusb_padctl_lane tegra124_lanes[] = {
 	TEGRA124_LANE("sata-0", 0x134, 26, 0x3, 6, pci),
 };
 
-struct tegra_xusb_phy_ops {
-	int (*prepare)(struct tegra_xusb_phy *phy);
-	int (*enable)(struct tegra_xusb_phy *phy);
-	int (*disable)(struct tegra_xusb_phy *phy);
-	int (*unprepare)(struct tegra_xusb_phy *phy);
-};
-
-struct tegra_xusb_phy {
-	const struct tegra_xusb_phy_ops *ops;
-
-	struct tegra_xusb_padctl *padctl;
-};
-
-struct tegra_xusb_padctl_pin {
-	const struct tegra_xusb_padctl_lane *lane;
-
-	unsigned int func;
-	int iddq;
-};
-
-#define MAX_GROUPS 3
-#define MAX_PINS 6
-
-struct tegra_xusb_padctl_group {
-	const char *name;
-
-	const char *pins[MAX_PINS];
-	unsigned int num_pins;
-
-	const char *func;
-	int iddq;
-};
-
-struct tegra_xusb_padctl_config {
-	const char *name;
-
-	struct tegra_xusb_padctl_group groups[MAX_GROUPS];
-	unsigned int num_groups;
-};
-
-struct tegra_xusb_padctl {
-	struct fdt_resource regs;
-
-	unsigned int enable;
-
-	struct tegra_xusb_phy phys[2];
-
-	const struct tegra_xusb_padctl_lane *lanes;
-	unsigned int num_lanes;
-
-	const char *const *functions;
-	unsigned int num_functions;
-
-	struct tegra_xusb_padctl_config config;
-};
-
-static inline u32 padctl_readl(struct tegra_xusb_padctl *padctl,
-			       unsigned long offset)
-{
-	return readl(padctl->regs.start + offset);
-}
-
-static inline void padctl_writel(struct tegra_xusb_padctl *padctl,
-				 u32 value, unsigned long offset)
-{
-	writel(value, padctl->regs.start + offset);
-}
-
 static int tegra_xusb_padctl_enable(struct tegra_xusb_padctl *padctl)
 {
 	u32 value;
@@ -220,7 +135,7 @@ static int tegra_xusb_padctl_disable(struct tegra_xusb_padctl *padctl)
 	u32 value;
 
 	if (padctl->enable == 0) {
-		error("tegra-xusb-padctl: unbalanced enable/disable");
+		error("unbalanced enable/disable");
 		return 0;
 	}
 
@@ -380,329 +295,27 @@ static const struct tegra_xusb_phy_ops sata_phy_ops = {
 	.unprepare = phy_unprepare,
 };
 
-static struct tegra_xusb_padctl *padctl = &(struct tegra_xusb_padctl) {
-	.phys = {
-		[0] = {
-			.ops = &pcie_phy_ops,
-		},
-		[1] = {
-			.ops = &sata_phy_ops,
-		},
+static struct tegra_xusb_phy tegra124_phys[] = {
+	{
+		.type = TEGRA_XUSB_PADCTL_PCIE,
+		.ops = &pcie_phy_ops,
+		.padctl = &padctl,
+	},
+	{
+		.type = TEGRA_XUSB_PADCTL_SATA,
+		.ops = &sata_phy_ops,
+		.padctl = &padctl,
 	},
 };
 
-static const struct tegra_xusb_padctl_lane *
-tegra_xusb_padctl_find_lane(struct tegra_xusb_padctl *padctl, const char *name)
-{
-	unsigned int i;
-
-	for (i = 0; i < padctl->num_lanes; i++)
-		if (strcmp(name, padctl->lanes[i].name) == 0)
-			return &padctl->lanes[i];
-
-	return NULL;
-}
-
-static int
-tegra_xusb_padctl_group_parse_dt(struct tegra_xusb_padctl *padctl,
-				 struct tegra_xusb_padctl_group *group,
-				 const void *fdt, int node)
-{
-	unsigned int i;
-	int len, err;
-
-	group->name = fdt_get_name(fdt, node, &len);
-
-	len = fdt_count_strings(fdt, node, "nvidia,lanes");
-	if (len < 0) {
-		error("tegra-xusb-padctl: failed to parse \"nvidia,lanes\" property");
-		return -EINVAL;
-	}
-
-	group->num_pins = len;
-
-	for (i = 0; i < group->num_pins; i++) {
-		err = fdt_get_string_index(fdt, node, "nvidia,lanes", i,
-					   &group->pins[i]);
-		if (err < 0) {
-			error("tegra-xusb-padctl: failed to read string from \"nvidia,lanes\" property");
-			return -EINVAL;
-		}
-	}
-
-	group->num_pins = len;
-
-	err = fdt_get_string(fdt, node, "nvidia,function", &group->func);
-	if (err < 0) {
-		error("tegra-xusb-padctl: failed to parse \"nvidia,func\" property");
-		return -EINVAL;
-	}
-
-	group->iddq = fdtdec_get_int(fdt, node, "nvidia,iddq", -1);
-
-	return 0;
-}
-
-static int tegra_xusb_padctl_find_function(struct tegra_xusb_padctl *padctl,
-					   const char *name)
-{
-	unsigned int i;
-
-	for (i = 0; i < padctl->num_functions; i++)
-		if (strcmp(name, padctl->functions[i]) == 0)
-			return i;
-
-	return -ENOENT;
-}
-
-static int
-tegra_xusb_padctl_lane_find_function(struct tegra_xusb_padctl *padctl,
-				     const struct tegra_xusb_padctl_lane *lane,
-				     const char *name)
-{
-	unsigned int i;
-	int func;
-
-	func = tegra_xusb_padctl_find_function(padctl, name);
-	if (func < 0)
-		return func;
-
-	for (i = 0; i < lane->num_funcs; i++)
-		if (lane->funcs[i] == func)
-			return i;
-
-	return -ENOENT;
-}
-
-static int
-tegra_xusb_padctl_group_apply(struct tegra_xusb_padctl *padctl,
-			      const struct tegra_xusb_padctl_group *group)
-{
-	unsigned int i;
-
-	for (i = 0; i < group->num_pins; i++) {
-		const struct tegra_xusb_padctl_lane *lane;
-		unsigned int func;
-		u32 value;
-
-		lane = tegra_xusb_padctl_find_lane(padctl, group->pins[i]);
-		if (!lane) {
-			error("tegra-xusb-padctl: no lane for pin %s",
-			      group->pins[i]);
-			continue;
-		}
-
-		func = tegra_xusb_padctl_lane_find_function(padctl, lane,
-							    group->func);
-		if (func < 0) {
-			error("tegra-xusb-padctl: function %s invalid for lane %s: %d",
-			      group->func, lane->name, func);
-			continue;
-		}
-
-		value = padctl_readl(padctl, lane->offset);
-
-		/* set pin function */
-		value &= ~(lane->mask << lane->shift);
-		value |= func << lane->shift;
-
-		/*
-		 * Set IDDQ if supported on the lane and specified in the
-		 * configuration.
-		 */
-		if (lane->iddq > 0 && group->iddq >= 0) {
-			if (group->iddq != 0)
-				value &= ~(1 << lane->iddq);
-			else
-				value |= 1 << lane->iddq;
-		}
-
-		padctl_writel(padctl, value, lane->offset);
-	}
-
-	return 0;
-}
-
-static int
-tegra_xusb_padctl_config_apply(struct tegra_xusb_padctl *padctl,
-			       struct tegra_xusb_padctl_config *config)
-{
-	unsigned int i;
-
-	for (i = 0; i < config->num_groups; i++) {
-		const struct tegra_xusb_padctl_group *group;
-		int err;
-
-		group = &config->groups[i];
-
-		err = tegra_xusb_padctl_group_apply(padctl, group);
-		if (err < 0) {
-			error("tegra-xusb-padctl: failed to apply group %s: %d",
-			      group->name, err);
-			continue;
-		}
-	}
-
-	return 0;
-}
-
-static int
-tegra_xusb_padctl_config_parse_dt(struct tegra_xusb_padctl *padctl,
-				  struct tegra_xusb_padctl_config *config,
-				  const void *fdt, int node)
-{
-	int subnode;
-
-	config->name = fdt_get_name(fdt, node, NULL);
-
-	fdt_for_each_subnode(fdt, subnode, node) {
-		struct tegra_xusb_padctl_group *group;
-		int err;
-
-		group = &config->groups[config->num_groups];
-
-		err = tegra_xusb_padctl_group_parse_dt(padctl, group, fdt,
-						       subnode);
-		if (err < 0) {
-			error("tegra-xusb-padctl: failed to parse group %s",
-			      group->name);
-			return err;
-		}
-
-		config->num_groups++;
-	}
-
-	return 0;
-}
-
-static int tegra_xusb_padctl_parse_dt(struct tegra_xusb_padctl *padctl,
-				      const void *fdt, int node)
-{
-	int subnode, err;
-
-	err = fdt_get_resource(fdt, node, "reg", 0, &padctl->regs);
-	if (err < 0) {
-		error("tegra-xusb-padctl: registers not found");
-		return err;
-	}
-
-	fdt_for_each_subnode(fdt, subnode, node) {
-		struct tegra_xusb_padctl_config *config = &padctl->config;
-
-		err = tegra_xusb_padctl_config_parse_dt(padctl, config, fdt,
-							subnode);
-		if (err < 0) {
-			error("tegra-xusb-padctl: failed to parse entry %s: %d",
-			      config->name, err);
-			continue;
-		}
-	}
-
-	return 0;
-}
-
-static int process_nodes(const void *fdt, int nodes[], unsigned int count)
-{
-	unsigned int i;
-
-	for (i = 0; i < count; i++) {
-		enum fdt_compat_id id;
-		int err;
-
-		if (!fdtdec_get_is_enabled(fdt, nodes[i]))
-			continue;
-
-		id = fdtdec_lookup(fdt, nodes[i]);
-		switch (id) {
-		case COMPAT_NVIDIA_TEGRA124_XUSB_PADCTL:
-			break;
-
-		default:
-			error("tegra-xusb-padctl: unsupported compatible: %s",
-			      fdtdec_get_compatible(id));
-			continue;
-		}
-
-		padctl->num_lanes = ARRAY_SIZE(tegra124_lanes);
-		padctl->lanes = tegra124_lanes;
-
-		padctl->num_functions = ARRAY_SIZE(tegra124_functions);
-		padctl->functions = tegra124_functions;
-
-		err = tegra_xusb_padctl_parse_dt(padctl, fdt, nodes[i]);
-		if (err < 0) {
-			error("tegra-xusb-padctl: failed to parse DT: %d",
-			      err);
-			continue;
-		}
-
-		/* deassert XUSB padctl reset */
-		reset_set_enable(PERIPH_ID_XUSB_PADCTL, 0);
-
-		err = tegra_xusb_padctl_config_apply(padctl, &padctl->config);
-		if (err < 0) {
-			error("tegra-xusb-padctl: failed to apply pinmux: %d",
-			      err);
-			continue;
-		}
-
-		/* only a single instance is supported */
-		break;
-	}
-
-	return 0;
-}
-
-struct tegra_xusb_phy *tegra_xusb_phy_get(unsigned int type)
-{
-	struct tegra_xusb_phy *phy = NULL;
-
-	switch (type) {
-	case TEGRA_XUSB_PADCTL_PCIE:
-		phy = &padctl->phys[0];
-		phy->padctl = padctl;
-		break;
-
-	case TEGRA_XUSB_PADCTL_SATA:
-		phy = &padctl->phys[1];
-		phy->padctl = padctl;
-		break;
-	}
-
-	return phy;
-}
-
-int tegra_xusb_phy_prepare(struct tegra_xusb_phy *phy)
-{
-	if (phy && phy->ops && phy->ops->prepare)
-		return phy->ops->prepare(phy);
-
-	return phy ? -ENOSYS : -EINVAL;
-}
-
-int tegra_xusb_phy_enable(struct tegra_xusb_phy *phy)
-{
-	if (phy && phy->ops && phy->ops->enable)
-		return phy->ops->enable(phy);
-
-	return phy ? -ENOSYS : -EINVAL;
-}
-
-int tegra_xusb_phy_disable(struct tegra_xusb_phy *phy)
-{
-	if (phy && phy->ops && phy->ops->disable)
-		return phy->ops->disable(phy);
-
-	return phy ? -ENOSYS : -EINVAL;
-}
-
-int tegra_xusb_phy_unprepare(struct tegra_xusb_phy *phy)
-{
-	if (phy && phy->ops && phy->ops->unprepare)
-		return phy->ops->unprepare(phy);
-
-	return phy ? -ENOSYS : -EINVAL;
-}
+static const struct tegra_xusb_padctl_soc tegra124_socdata = {
+	.lanes = tegra124_lanes,
+	.num_lanes = ARRAY_SIZE(tegra124_lanes),
+	.functions = tegra124_functions,
+	.num_functions = ARRAY_SIZE(tegra124_functions),
+	.phys = tegra124_phys,
+	.num_phys = ARRAY_SIZE(tegra124_phys),
+};
 
 void tegra_xusb_padctl_init(const void *fdt)
 {
@@ -711,6 +324,6 @@ void tegra_xusb_padctl_init(const void *fdt)
 	count = fdtdec_find_aliases_for_id(fdt, "padctl",
 					   COMPAT_NVIDIA_TEGRA124_XUSB_PADCTL,
 					   nodes, ARRAY_SIZE(nodes));
-	if (process_nodes(fdt, nodes, count))
+	if (tegra_xusb_process_nodes(fdt, nodes, count, &tegra124_socdata))
 		return;
 }