Adjust this code to support a live device tree. This should be implemented
as a PHY driver but that is left as an exercise for the maintainer.
Signed-off-by: Simon Glass <s...@chromium.org>
---
Changes in v2: None
arch/arm/include/asm/arch-tegra/xusb-padctl.h | 2 +-
arch/arm/mach-tegra/board2.c | 2 +-
arch/arm/mach-tegra/tegra124/xusb-padctl.c | 36 +++++++++---
arch/arm/mach-tegra/tegra210/xusb-padctl.c | 40 +++++++++----
arch/arm/mach-tegra/xusb-padctl-common.c | 84 ++++++++++++++-------------
arch/arm/mach-tegra/xusb-padctl-common.h | 11 ++--
arch/arm/mach-tegra/xusb-padctl-dummy.c | 2 +-
7 files changed, 112 insertions(+), 65 deletions(-)
diff --git a/arch/arm/include/asm/arch-tegra/xusb-padctl.h
b/arch/arm/include/asm/arch-tegra/xusb-padctl.h
index b4b4c8ba4d..deccdf455d 100644
--- a/arch/arm/include/asm/arch-tegra/xusb-padctl.h
+++ b/arch/arm/include/asm/arch-tegra/xusb-padctl.h
@@ -15,7 +15,7 @@ struct tegra_xusb_phy;
*/
struct tegra_xusb_phy *tegra_xusb_phy_get(unsigned int type);
-void tegra_xusb_padctl_init(const void *fdt);
+void tegra_xusb_padctl_init(void);
int tegra_xusb_phy_prepare(struct tegra_xusb_phy *phy);
int tegra_xusb_phy_enable(struct tegra_xusb_phy *phy);
int tegra_xusb_phy_disable(struct tegra_xusb_phy *phy);
diff --git a/arch/arm/mach-tegra/board2.c b/arch/arm/mach-tegra/board2.c
index 943ee24e59..5aedd3ef9d 100644
--- a/arch/arm/mach-tegra/board2.c
+++ b/arch/arm/mach-tegra/board2.c
@@ -164,7 +164,7 @@ int board_init(void)
pin_mux_nand();
#endif
- tegra_xusb_padctl_init(gd->fdt_blob);
+ tegra_xusb_padctl_init();
#ifdef CONFIG_TEGRA_LP0
/* save Sdram params to PMC 2, 4, and 24 for WB0 */
diff --git a/arch/arm/mach-tegra/tegra124/xusb-padctl.c
b/arch/arm/mach-tegra/tegra124/xusb-padctl.c
index 76af924b94..d326a6ae57 100644
--- a/arch/arm/mach-tegra/tegra124/xusb-padctl.c
+++ b/arch/arm/mach-tegra/tegra124/xusb-padctl.c
@@ -8,6 +8,8 @@
#include <common.h>
#include <errno.h>
+#include <dm/of_access.h>
+#include <dm/ofnode.h>
#include "../xusb-padctl-common.h"
@@ -317,13 +319,33 @@ static const struct tegra_xusb_padctl_soc
tegra124_socdata = {
.num_phys = ARRAY_SIZE(tegra124_phys),
};
-void tegra_xusb_padctl_init(const void *fdt)
+void tegra_xusb_padctl_init(void)
{
- int count, nodes[1];
+ ofnode nodes[1];
+ int count = 0;
+ int ret;
+
+ debug("%s: start\n", __func__);
+ if (of_live_active()) {
+ struct device_node *np = of_find_compatible_node(NULL, NULL,
+ "nvidia,tegra124-xusb-padctl");
+
+ debug("np=%p\n", np);
+ if (np) {
+ nodes[0] = np_to_ofnode(np);
+ count = 1;
+ }
+ } else {
+ int node_offsets[1];
+ int i;
+
+ count = fdtdec_find_aliases_for_id(gd->fdt_blob, "padctl",
+ COMPAT_NVIDIA_TEGRA124_XUSB_PADCTL,
+ node_offsets, ARRAY_SIZE(node_offsets));
+ for (i = 0; i < count; i++)
+ nodes[i] = offset_to_ofnode(node_offsets[i]);
+ }
- count = fdtdec_find_aliases_for_id(fdt, "padctl",
- COMPAT_NVIDIA_TEGRA124_XUSB_PADCTL,
- nodes, ARRAY_SIZE(nodes));
- if (tegra_xusb_process_nodes(fdt, nodes, count, &tegra124_socdata))
- return;
+ ret = tegra_xusb_process_nodes(nodes, count, &tegra124_socdata);
+ debug("%s: done, ret=%d\n", __func__, ret);
}
diff --git a/arch/arm/mach-tegra/tegra210/xusb-padctl.c
b/arch/arm/mach-tegra/tegra210/xusb-padctl.c
index 9ec93e7c4c..fde76dda01 100644
--- a/arch/arm/mach-tegra/tegra210/xusb-padctl.c
+++ b/arch/arm/mach-tegra/tegra210/xusb-padctl.c
@@ -8,6 +8,8 @@
#include <common.h>
#include <errno.h>
+#include <dm/of_access.h>
+#include <dm/ofnode.h>
#include "../xusb-padctl-common.h"
@@ -421,17 +423,33 @@ static const struct tegra_xusb_padctl_soc
tegra210_socdata = {
.num_phys = ARRAY_SIZE(tegra210_phys),
};
-void tegra_xusb_padctl_init(const void *fdt)
+void tegra_xusb_padctl_init(void)
{
- int count, nodes[1];
-
- debug("> %s(fdt=%p)\n", __func__, fdt);
-
- count = fdtdec_find_aliases_for_id(fdt, "padctl",
- COMPAT_NVIDIA_TEGRA210_XUSB_PADCTL,
- nodes, ARRAY_SIZE(nodes));
- if (tegra_xusb_process_nodes(fdt, nodes, count, &tegra210_socdata))
- return;
+ ofnode nodes[1];
+ int count = 0;
+ int ret;
+
+ debug("%s: start\n", __func__);
+ if (of_live_active()) {
+ struct device_node *np = of_find_compatible_node(NULL, NULL,
+ "nvidia,tegra210-xusb-padctl");
+
+ debug("np=%p\n", np);
+ if (np) {
+ nodes[0] = np_to_ofnode(np);
+ count = 1;
+ }
+ } else {
+ int node_offsets[1];
+ int i;
+
+ count = fdtdec_find_aliases_for_id(gd->fdt_blob, "padctl",
+ COMPAT_NVIDIA_TEGRA210_XUSB_PADCTL,
+ node_offsets, ARRAY_SIZE(node_offsets));
+ for (i = 0; i < count; i++)
+ nodes[i] = offset_to_ofnode(node_offsets[i]);
+ }
- debug("< %s()\n", __func__);
+ ret = tegra_xusb_process_nodes(nodes, count, &tegra210_socdata);
+ debug("%s: done, ret=%d\n", __func__, ret);
}
diff --git a/arch/arm/mach-tegra/xusb-padctl-common.c
b/arch/arm/mach-tegra/xusb-padctl-common.c
index 43f5bb7da6..4114273b6d 100644
--- a/arch/arm/mach-tegra/xusb-padctl-common.c
+++ b/arch/arm/mach-tegra/xusb-padctl-common.c
@@ -75,39 +75,35 @@ tegra_xusb_padctl_find_lane(struct tegra_xusb_padctl
*padctl, const char *name)
static int
tegra_xusb_padctl_group_parse_dt(struct tegra_xusb_padctl *padctl,
struct tegra_xusb_padctl_group *group,
- const void *fdt, int node)
+ ofnode node)
{
unsigned int i;
- int len;
-
- group->name = fdt_get_name(fdt, node, &len);
-
- len = fdt_stringlist_count(fdt, node, "nvidia,lanes");
- if (len < 0) {
- error("failed to parse \"nvidia,lanes\" property");
- return -EINVAL;
- }
-
- group->num_pins = len;
-
- for (i = 0; i < group->num_pins; i++) {
- group->pins[i] = fdt_stringlist_get(fdt, node, "nvidia,lanes",
- i, NULL);
- if (!group->pins[i]) {
- error("failed to read string from \"nvidia,lanes\"
property");
- return -EINVAL;
+ int ret;
+
+ group->name = ofnode_get_name(node);
+
+ for (i = 0; ; i++) {
+ ret = ofnode_read_string_index(node, "nvidia,lanes", i,
+ &group->pins[i]);
+ if (ret) {
+ if (!i) {
+ error("failed to read string from
\"nvidia,lanes\" property");
+ return -EINVAL;
+ }
+ break;
}
}
- group->num_pins = len;
+ group->num_pins = i;
- group->func = fdt_stringlist_get(fdt, node, "nvidia,function", 0, NULL);
- if (!group->func) {
+ ret = ofnode_read_string_index(node, "nvidia,function", 0,
+ &group->func);
+ if (ret) {
error("failed to parse \"nvidia,func\" property");
return -EINVAL;
}
- group->iddq = fdtdec_get_int(fdt, node, "nvidia,iddq", -1);
+ group->iddq = ofnode_read_u32_default(node, "nvidia,iddq", -1);
return 0;
}
@@ -217,20 +213,21 @@ tegra_xusb_padctl_config_apply(struct tegra_xusb_padctl
*padctl,
static int
tegra_xusb_padctl_config_parse_dt(struct tegra_xusb_padctl *padctl,
struct tegra_xusb_padctl_config *config,
- const void *fdt, int node)
+ ofnode node)
{
- int subnode;
+ ofnode subnode;
- config->name = fdt_get_name(fdt, node, NULL);
+ config->name = ofnode_get_name(node);
- fdt_for_each_subnode(subnode, fdt, node) {
+ for (subnode = ofnode_first_subnode(node);
+ ofnode_valid(node);
+ subnode = ofnode_next_subnode(subnode)) {
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);
+ err = tegra_xusb_padctl_group_parse_dt(padctl, group, subnode);
if (err < 0) {
error("failed to parse group %s", group->name);
return err;
@@ -243,20 +240,25 @@ tegra_xusb_padctl_config_parse_dt(struct
tegra_xusb_padctl *padctl,
}
static int tegra_xusb_padctl_parse_dt(struct tegra_xusb_padctl *padctl,
- const void *fdt, int node)
+ ofnode node)
{
- int subnode, err;
+ ofnode subnode;
+ int err;
- err = fdt_get_resource(fdt, node, "reg", 0, &padctl->regs);
- if (err < 0) {
+ debug("%s: start %s\n", __func__, node.np->name);
+ padctl->regs = ofnode_get_addr(node);
+ if (padctl->regs == FDT_ADDR_T_NONE) {
error("registers not found");
return err;
}
- fdt_for_each_subnode(subnode, fdt, node) {
+ for (subnode = ofnode_first_subnode(node);
+ ofnode_valid(subnode);
+ subnode = ofnode_next_subnode(subnode)) {
struct tegra_xusb_padctl_config *config = &padctl->config;
- err = tegra_xusb_padctl_config_parse_dt(padctl, config, fdt,
+ debug("%s: subnode=%s\n", __func__, subnode.np->name);
+ err = tegra_xusb_padctl_config_parse_dt(padctl, config,
subnode);
if (err < 0) {
error("failed to parse entry %s: %d",
@@ -264,25 +266,28 @@ static int tegra_xusb_padctl_parse_dt(struct
tegra_xusb_padctl *padctl,
continue;
}
}
+ debug("%s: done\n", __func__);
return 0;
}
struct tegra_xusb_padctl padctl;
-int tegra_xusb_process_nodes(const void *fdt, int nodes[], unsigned int count,
- const struct tegra_xusb_padctl_soc *socdata)
+int tegra_xusb_process_nodes(ofnode nodes[], unsigned int count,
+ const struct tegra_xusb_padctl_soc *socdata)
{
unsigned int i;
int err;
+ debug("%s: count=%d\n", __func__, count);
for (i = 0; i < count; i++) {
- if (!fdtdec_get_is_enabled(fdt, nodes[i]))
+ debug("%s: i=%d, node=%p\n", __func__, i, nodes[i].np);
+ if (!ofnode_is_available(nodes[i]))
continue;
padctl.socdata = socdata;
- err = tegra_xusb_padctl_parse_dt(&padctl, fdt, nodes[i]);
+ err = tegra_xusb_padctl_parse_dt(&padctl, nodes[i]);
if (err < 0) {
error("failed to parse DT: %d", err);
continue;
@@ -300,6 +305,7 @@ int tegra_xusb_process_nodes(const void *fdt, int nodes[],
unsigned int count,
/* only a single instance is supported */
break;
}
+ debug("%s: done\n", __func__);
return 0;
}
diff --git a/arch/arm/mach-tegra/xusb-padctl-common.h
b/arch/arm/mach-tegra/xusb-padctl-common.h
index f44790a650..afb62a9adc 100644
--- a/arch/arm/mach-tegra/xusb-padctl-common.h
+++ b/arch/arm/mach-tegra/xusb-padctl-common.h
@@ -9,6 +9,7 @@
#include <common.h>
#include <fdtdec.h>
+#include <dm/ofnode.h>
#include <asm/io.h>
#include <asm/arch-tegra/xusb-padctl.h>
@@ -77,7 +78,7 @@ struct tegra_xusb_padctl_config {
struct tegra_xusb_padctl {
const struct tegra_xusb_padctl_soc *socdata;
struct tegra_xusb_padctl_config config;
- struct fdt_resource regs;
+ ulong regs;
unsigned int enable;
};
@@ -86,16 +87,16 @@ extern struct tegra_xusb_padctl padctl;
static inline u32 padctl_readl(struct tegra_xusb_padctl *padctl,
unsigned long offset)
{
- return readl(padctl->regs.start + offset);
+ return readl(padctl->regs + offset);
}
static inline void padctl_writel(struct tegra_xusb_padctl *padctl,
u32 value, unsigned long offset)
{
- writel(value, padctl->regs.start + offset);
+ writel(value, padctl->regs + offset);
}
-int tegra_xusb_process_nodes(const void *fdt, int nodes[], unsigned int count,
- const struct tegra_xusb_padctl_soc *socdata);
+int tegra_xusb_process_nodes(ofnode nodes[], unsigned int count,
+ const struct tegra_xusb_padctl_soc *socdata);
#endif
diff --git a/arch/arm/mach-tegra/xusb-padctl-dummy.c
b/arch/arm/mach-tegra/xusb-padctl-dummy.c
index 65f8d2ea96..856d712512 100644
--- a/arch/arm/mach-tegra/xusb-padctl-dummy.c
+++ b/arch/arm/mach-tegra/xusb-padctl-dummy.c
@@ -34,6 +34,6 @@ int __weak tegra_xusb_phy_unprepare(struct tegra_xusb_phy
*phy)
return -ENOSYS;
}
-void __weak tegra_xusb_padctl_init(const void *fdt)
+void __weak tegra_xusb_padctl_init(void)
{
}
--
2.13.0.506.g27d5fe0cd-goog
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