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-rw-r--r--arch/arm/mach-tegra/include/mach/pinmux.h4
-rw-r--r--arch/arm/mach-tegra/pinmux-t2-tables.c76
-rw-r--r--arch/arm/mach-tegra/pinmux.c137
3 files changed, 123 insertions, 94 deletions
diff --git a/arch/arm/mach-tegra/include/mach/pinmux.h b/arch/arm/mach-tegra/include/mach/pinmux.h
index defd8775defa..bb7dfdb61205 100644
--- a/arch/arm/mach-tegra/include/mach/pinmux.h
+++ b/arch/arm/mach-tegra/include/mach/pinmux.h
@@ -199,6 +199,7 @@ struct tegra_drive_pingroup_config {
struct tegra_drive_pingroup_desc {
const char *name;
+ s16 reg_bank;
s16 reg;
};
@@ -207,6 +208,9 @@ struct tegra_pingroup_desc {
int funcs[4];
int func_safe;
int vddio;
+ s16 tri_bank; /* Register bank the tri_reg exists within */
+ s16 mux_bank; /* Register bank the mux_reg exists within */
+ s16 pupd_bank; /* Register bank the pupd_reg exists within */
s16 tri_reg; /* offset into the TRISTATE_REG_* register bank */
s16 mux_reg; /* offset into the PIN_MUX_CTL_* register bank */
s16 pupd_reg; /* offset into the PULL_UPDOWN_REG_* register bank */
diff --git a/arch/arm/mach-tegra/pinmux-t2-tables.c b/arch/arm/mach-tegra/pinmux-t2-tables.c
index a475367befa3..a0dc2bc28ed3 100644
--- a/arch/arm/mach-tegra/pinmux-t2-tables.c
+++ b/arch/arm/mach-tegra/pinmux-t2-tables.c
@@ -31,10 +31,16 @@
#include <mach/pinmux.h>
#include <mach/suspend.h>
+#define TRISTATE_REG_A 0x14
+#define PIN_MUX_CTL_REG_A 0x80
+#define PULLUPDOWN_REG_A 0xa0
+#define PINGROUP_REG_A 0x868
+
#define DRIVE_PINGROUP(pg_name, r) \
[TEGRA_DRIVE_PINGROUP_ ## pg_name] = { \
.name = #pg_name, \
- .reg = r \
+ .reg_bank = 3, \
+ .reg = ((r) - PINGROUP_REG_A) \
}
const struct tegra_drive_pingroup_desc tegra_soc_drive_pingroups[TEGRA_MAX_DRIVE_PINGROUP] = {
@@ -90,11 +96,14 @@ const struct tegra_drive_pingroup_desc tegra_soc_drive_pingroups[TEGRA_MAX_DRIVE
TEGRA_MUX_ ## f3, \
}, \
.func_safe = TEGRA_MUX_ ## f_safe, \
- .tri_reg = tri_r, \
+ .tri_bank = 0, \
+ .tri_reg = ((tri_r) - TRISTATE_REG_A), \
.tri_bit = tri_b, \
- .mux_reg = mux_r, \
+ .mux_bank = 1, \
+ .mux_reg = ((mux_r) - PIN_MUX_CTL_REG_A), \
.mux_bit = mux_b, \
- .pupd_reg = pupd_r, \
+ .pupd_bank = 2, \
+ .pupd_reg = ((pupd_r) - PULLUPDOWN_REG_A), \
.pupd_bit = pupd_b, \
}
@@ -217,62 +226,3 @@ const struct tegra_pingroup_desc tegra_soc_pingroups[TEGRA_MAX_PINGROUP] = {
PINGROUP(XM2C, DDR, RSVD, RSVD, RSVD, RSVD, RSVD, -1, -1, -1, -1, 0xA8, 30),
PINGROUP(XM2D, DDR, RSVD, RSVD, RSVD, RSVD, RSVD, -1, -1, -1, -1, 0xA8, 28),
};
-
-#ifdef CONFIG_PM
-#define TRISTATE_REG_A 0x14
-#define TRISTATE_REG_NUM 4
-#define PIN_MUX_CTL_REG_A 0x80
-#define PIN_MUX_CTL_REG_NUM 8
-#define PULLUPDOWN_REG_A 0xa0
-#define PULLUPDOWN_REG_NUM 5
-
-static u32 pinmux_reg[TRISTATE_REG_NUM + PIN_MUX_CTL_REG_NUM +
- PULLUPDOWN_REG_NUM +
- ARRAY_SIZE(tegra_soc_drive_pingroups)];
-
-static inline unsigned long pg_readl(unsigned long offset)
-{
- return readl(IO_TO_VIRT(TEGRA_APB_MISC_BASE + offset));
-}
-
-static inline void pg_writel(unsigned long value, unsigned long offset)
-{
- writel(value, IO_TO_VIRT(TEGRA_APB_MISC_BASE + offset));
-}
-
-void tegra_pinmux_suspend(void)
-{
- unsigned int i;
- u32 *ctx = pinmux_reg;
-
- for (i = 0; i < PIN_MUX_CTL_REG_NUM; i++)
- *ctx++ = pg_readl(PIN_MUX_CTL_REG_A + i*4);
-
- for (i = 0; i < PULLUPDOWN_REG_NUM; i++)
- *ctx++ = pg_readl(PULLUPDOWN_REG_A + i*4);
-
- for (i = 0; i < TRISTATE_REG_NUM; i++)
- *ctx++ = pg_readl(TRISTATE_REG_A + i*4);
-
- for (i = 0; i < ARRAY_SIZE(tegra_soc_drive_pingroups); i++)
- *ctx++ = pg_readl(tegra_soc_drive_pingroups[i].reg);
-}
-
-void tegra_pinmux_resume(void)
-{
- unsigned int i;
- u32 *ctx = pinmux_reg;
-
- for (i = 0; i < PIN_MUX_CTL_REG_NUM; i++)
- pg_writel(*ctx++, PIN_MUX_CTL_REG_A + i*4);
-
- for (i = 0; i < PULLUPDOWN_REG_NUM; i++)
- pg_writel(*ctx++, PULLUPDOWN_REG_A + i*4);
-
- for (i = 0; i < TRISTATE_REG_NUM; i++)
- pg_writel(*ctx++, TRISTATE_REG_A + i*4);
-
- for (i = 0; i < ARRAY_SIZE(tegra_soc_drive_pingroups); i++)
- pg_writel(*ctx++, tegra_soc_drive_pingroups[i].reg);
-}
-#endif
diff --git a/arch/arm/mach-tegra/pinmux.c b/arch/arm/mach-tegra/pinmux.c
index fb212177c515..1d201650d7a4 100644
--- a/arch/arm/mach-tegra/pinmux.c
+++ b/arch/arm/mach-tegra/pinmux.c
@@ -170,15 +170,17 @@ static const char *pupd_name(unsigned long val)
}
}
+static int nbanks;
+static void __iomem **regs;
-static inline unsigned long pg_readl(unsigned long offset)
+static inline u32 pg_readl(u32 bank, u32 reg)
{
- return readl(IO_TO_VIRT(TEGRA_APB_MISC_BASE + offset));
+ return readl(regs[bank] + reg);
}
-static inline void pg_writel(unsigned long value, unsigned long offset)
+static inline void pg_writel(u32 val, u32 bank, u32 reg)
{
- writel(value, IO_TO_VIRT(TEGRA_APB_MISC_BASE + offset));
+ writel(val, regs[bank] + reg);
}
static int tegra_pinmux_set_func(const struct tegra_pingroup_config *config)
@@ -218,10 +220,10 @@ static int tegra_pinmux_set_func(const struct tegra_pingroup_config *config)
spin_lock_irqsave(&mux_lock, flags);
- reg = pg_readl(pingroups[pg].mux_reg);
+ reg = pg_readl(pingroups[pg].mux_bank, pingroups[pg].mux_reg);
reg &= ~(0x3 << pingroups[pg].mux_bit);
reg |= mux << pingroups[pg].mux_bit;
- pg_writel(reg, pingroups[pg].mux_reg);
+ pg_writel(reg, pingroups[pg].mux_bank, pingroups[pg].mux_reg);
spin_unlock_irqrestore(&mux_lock, flags);
@@ -242,11 +244,11 @@ int tegra_pinmux_set_tristate(enum tegra_pingroup pg,
spin_lock_irqsave(&mux_lock, flags);
- reg = pg_readl(pingroups[pg].tri_reg);
+ reg = pg_readl(pingroups[pg].tri_bank, pingroups[pg].tri_reg);
reg &= ~(0x1 << pingroups[pg].tri_bit);
if (tristate)
reg |= 1 << pingroups[pg].tri_bit;
- pg_writel(reg, pingroups[pg].tri_reg);
+ pg_writel(reg, pingroups[pg].tri_bank, pingroups[pg].tri_reg);
spin_unlock_irqrestore(&mux_lock, flags);
@@ -273,10 +275,10 @@ int tegra_pinmux_set_pullupdown(enum tegra_pingroup pg,
spin_lock_irqsave(&mux_lock, flags);
- reg = pg_readl(pingroups[pg].pupd_reg);
+ reg = pg_readl(pingroups[pg].pupd_bank, pingroups[pg].pupd_reg);
reg &= ~(0x3 << pingroups[pg].pupd_bit);
reg |= pupd << pingroups[pg].pupd_bit;
- pg_writel(reg, pingroups[pg].pupd_reg);
+ pg_writel(reg, pingroups[pg].pupd_bank, pingroups[pg].pupd_reg);
spin_unlock_irqrestore(&mux_lock, flags);
@@ -363,12 +365,12 @@ static int tegra_drive_pinmux_set_hsm(enum tegra_drive_pingroup pg,
spin_lock_irqsave(&mux_lock, flags);
- reg = pg_readl(drive_pingroups[pg].reg);
+ reg = pg_readl(drive_pingroups[pg].reg_bank, drive_pingroups[pg].reg);
if (hsm == TEGRA_HSM_ENABLE)
reg |= (1 << 2);
else
reg &= ~(1 << 2);
- pg_writel(reg, drive_pingroups[pg].reg);
+ pg_writel(reg, drive_pingroups[pg].reg_bank, drive_pingroups[pg].reg);
spin_unlock_irqrestore(&mux_lock, flags);
@@ -388,12 +390,12 @@ static int tegra_drive_pinmux_set_schmitt(enum tegra_drive_pingroup pg,
spin_lock_irqsave(&mux_lock, flags);
- reg = pg_readl(drive_pingroups[pg].reg);
+ reg = pg_readl(drive_pingroups[pg].reg_bank, drive_pingroups[pg].reg);
if (schmitt == TEGRA_SCHMITT_ENABLE)
reg |= (1 << 3);
else
reg &= ~(1 << 3);
- pg_writel(reg, drive_pingroups[pg].reg);
+ pg_writel(reg, drive_pingroups[pg].reg_bank, drive_pingroups[pg].reg);
spin_unlock_irqrestore(&mux_lock, flags);
@@ -413,10 +415,10 @@ static int tegra_drive_pinmux_set_drive(enum tegra_drive_pingroup pg,
spin_lock_irqsave(&mux_lock, flags);
- reg = pg_readl(drive_pingroups[pg].reg);
+ reg = pg_readl(drive_pingroups[pg].reg_bank, drive_pingroups[pg].reg);
reg &= ~(0x3 << 4);
reg |= drive << 4;
- pg_writel(reg, drive_pingroups[pg].reg);
+ pg_writel(reg, drive_pingroups[pg].reg_bank, drive_pingroups[pg].reg);
spin_unlock_irqrestore(&mux_lock, flags);
@@ -436,10 +438,10 @@ static int tegra_drive_pinmux_set_pull_down(enum tegra_drive_pingroup pg,
spin_lock_irqsave(&mux_lock, flags);
- reg = pg_readl(drive_pingroups[pg].reg);
+ reg = pg_readl(drive_pingroups[pg].reg_bank, drive_pingroups[pg].reg);
reg &= ~(0x1f << 12);
reg |= pull_down << 12;
- pg_writel(reg, drive_pingroups[pg].reg);
+ pg_writel(reg, drive_pingroups[pg].reg_bank, drive_pingroups[pg].reg);
spin_unlock_irqrestore(&mux_lock, flags);
@@ -459,10 +461,10 @@ static int tegra_drive_pinmux_set_pull_up(enum tegra_drive_pingroup pg,
spin_lock_irqsave(&mux_lock, flags);
- reg = pg_readl(drive_pingroups[pg].reg);
+ reg = pg_readl(drive_pingroups[pg].reg_bank, drive_pingroups[pg].reg);
reg &= ~(0x1f << 12);
reg |= pull_up << 12;
- pg_writel(reg, drive_pingroups[pg].reg);
+ pg_writel(reg, drive_pingroups[pg].reg_bank, drive_pingroups[pg].reg);
spin_unlock_irqrestore(&mux_lock, flags);
@@ -482,10 +484,10 @@ static int tegra_drive_pinmux_set_slew_rising(enum tegra_drive_pingroup pg,
spin_lock_irqsave(&mux_lock, flags);
- reg = pg_readl(drive_pingroups[pg].reg);
+ reg = pg_readl(drive_pingroups[pg].reg_bank, drive_pingroups[pg].reg);
reg &= ~(0x3 << 28);
reg |= slew_rising << 28;
- pg_writel(reg, drive_pingroups[pg].reg);
+ pg_writel(reg, drive_pingroups[pg].reg_bank, drive_pingroups[pg].reg);
spin_unlock_irqrestore(&mux_lock, flags);
@@ -505,10 +507,10 @@ static int tegra_drive_pinmux_set_slew_falling(enum tegra_drive_pingroup pg,
spin_lock_irqsave(&mux_lock, flags);
- reg = pg_readl(drive_pingroups[pg].reg);
+ reg = pg_readl(drive_pingroups[pg].reg_bank, drive_pingroups[pg].reg);
reg &= ~(0x3 << 30);
reg |= slew_falling << 30;
- pg_writel(reg, drive_pingroups[pg].reg);
+ pg_writel(reg, drive_pingroups[pg].reg_bank, drive_pingroups[pg].reg);
spin_unlock_irqrestore(&mux_lock, flags);
@@ -668,6 +670,74 @@ void tegra_pinmux_config_pullupdown_table(const struct tegra_pingroup_config *co
static int __devinit tegra_pinmux_probe(struct platform_device *pdev)
{
+ struct resource *res;
+ int i;
+ int config_bad = 0;
+
+ for (i = 0; ; i++) {
+ res = platform_get_resource(pdev, IORESOURCE_MEM, i);
+ if (!res)
+ break;
+ }
+ nbanks = i;
+
+ for (i = 0; i < TEGRA_MAX_PINGROUP; i++) {
+ if (pingroups[i].tri_bank >= nbanks) {
+ dev_err(&pdev->dev, "pingroup %d: bad tri_bank\n", i);
+ config_bad = 1;
+ }
+
+ if (pingroups[i].mux_bank >= nbanks) {
+ dev_err(&pdev->dev, "pingroup %d: bad mux_bank\n", i);
+ config_bad = 1;
+ }
+
+ if (pingroups[i].pupd_bank >= nbanks) {
+ dev_err(&pdev->dev, "pingroup %d: bad pupd_bank\n", i);
+ config_bad = 1;
+ }
+ }
+
+ for (i = 0; i < TEGRA_MAX_DRIVE_PINGROUP; i++) {
+ if (drive_pingroups[i].reg_bank >= nbanks) {
+ dev_err(&pdev->dev,
+ "drive pingroup %d: bad reg_bank\n", i);
+ config_bad = 1;
+ }
+ }
+
+ if (config_bad)
+ return -ENODEV;
+
+ regs = devm_kzalloc(&pdev->dev, nbanks * sizeof(*regs), GFP_KERNEL);
+ if (!regs) {
+ dev_err(&pdev->dev, "Can't alloc regs pointer\n");
+ return -ENODEV;
+ }
+
+ for (i = 0; i < nbanks; i++) {
+ res = platform_get_resource(pdev, IORESOURCE_MEM, i);
+ if (!res) {
+ dev_err(&pdev->dev, "Missing MEM resource\n");
+ return -ENODEV;
+ }
+
+ if (!devm_request_mem_region(&pdev->dev, res->start,
+ resource_size(res),
+ dev_name(&pdev->dev))) {
+ dev_err(&pdev->dev,
+ "Couldn't request MEM resource %d\n", i);
+ return -ENODEV;
+ }
+
+ regs[i] = devm_ioremap(&pdev->dev, res->start,
+ resource_size(res));
+ if (!regs) {
+ dev_err(&pdev->dev, "Couldn't ioremap regs %d\n", i);
+ return -ENODEV;
+ }
+ }
+
return 0;
}
@@ -710,6 +780,7 @@ static int dbg_pinmux_show(struct seq_file *s, void *unused)
int len;
for (i = 0; i < TEGRA_MAX_PINGROUP; i++) {
+ unsigned long reg;
unsigned long tri;
unsigned long mux;
unsigned long pupd;
@@ -722,8 +793,9 @@ static int dbg_pinmux_show(struct seq_file *s, void *unused)
seq_printf(s, "TEGRA_MUX_NONE");
len = strlen("NONE");
} else {
- mux = (pg_readl(pingroups[i].mux_reg) >>
- pingroups[i].mux_bit) & 0x3;
+ reg = pg_readl(pingroups[i].mux_bank,
+ pingroups[i].mux_reg);
+ mux = (reg >> pingroups[i].mux_bit) & 0x3;
if (pingroups[i].funcs[mux] == TEGRA_MUX_RSVD) {
seq_printf(s, "TEGRA_MUX_RSVD%1lu", mux+1);
len = 5;
@@ -739,8 +811,9 @@ static int dbg_pinmux_show(struct seq_file *s, void *unused)
seq_printf(s, "TEGRA_PUPD_NORMAL");
len = strlen("NORMAL");
} else {
- pupd = (pg_readl(pingroups[i].pupd_reg) >>
- pingroups[i].pupd_bit) & 0x3;
+ reg = pg_readl(pingroups[i].pupd_bank,
+ pingroups[i].pupd_reg);
+ pupd = (reg >> pingroups[i].pupd_bit) & 0x3;
seq_printf(s, "TEGRA_PUPD_%s", pupd_name(pupd));
len = strlen(pupd_name(pupd));
}
@@ -749,8 +822,9 @@ static int dbg_pinmux_show(struct seq_file *s, void *unused)
if (pingroups[i].tri_reg < 0) {
seq_printf(s, "TEGRA_TRI_NORMAL");
} else {
- tri = (pg_readl(pingroups[i].tri_reg) >>
- pingroups[i].tri_bit) & 0x1;
+ reg = pg_readl(pingroups[i].tri_bank,
+ pingroups[i].tri_reg);
+ tri = (reg >> pingroups[i].tri_bit) & 0x1;
seq_printf(s, "TEGRA_TRI_%s", tri_name(tri));
}
@@ -785,7 +859,8 @@ static int dbg_drive_pinmux_show(struct seq_file *s, void *unused)
dbg_pad_field(s, 7 - len);
- reg = pg_readl(drive_pingroups[i].reg);
+ reg = pg_readl(drive_pingroups[i].reg_bank,
+ drive_pingroups[i].reg);
if (HSM_EN(reg)) {
seq_printf(s, "TEGRA_HSM_ENABLE");
len = 16;
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