Merge branch 'master' of git://www.denx.de/git/u-boot-imx

4 files changed, 60 insertions, 38 deletions

diff --git a/drivers/i2c/mxc_i2c.c b/drivers/i2c/mxc_i2c.c
index 81adf6f..b3c50aa 100644
--- a/drivers/i2c/mxc_i2c.c
+++ b/drivers/i2c/mxc_i2c.c
@@ -170,6 +170,9 @@ static int bus_i2c_set_bus_speed(struct mxc_i2c_bus *i2c_bus, int speed)
 	u8 idx = i2c_clk_div[clk_idx][1];
 	int reg_shift = quirk ? VF610_I2C_REGSHIFT : IMX_I2C_REGSHIFT;
 
+	if (!base)
+		return -ENODEV;
+
 	/* Store divider value */
 	writeb(idx, base + (IFDR << reg_shift));
 
@@ -351,6 +354,10 @@ static int i2c_init_transfer(struct mxc_i2c_bus *i2c_bus, u8 chip,
 	int ret;
 	int reg_shift = i2c_bus->driver_data & I2C_QUIRK_FLAG ?
 			VF610_I2C_REGSHIFT : IMX_I2C_REGSHIFT;
+
+	if (!i2c_bus->base)
+		return -ENODEV;
+
 	for (retry = 0; retry < 3; retry++) {
 		ret = i2c_init_transfer_(i2c_bus, chip, addr, alen);
 		if (ret >= 0)
@@ -503,35 +510,30 @@ static int bus_i2c_write(struct mxc_i2c_bus *i2c_bus, u8 chip, u32 addr,
 	return ret;
 }
 
+#if !defined(I2C2_BASE_ADDR)
+#define I2C2_BASE_ADDR	0
+#endif
+
+#if !defined(I2C3_BASE_ADDR)
+#define I2C3_BASE_ADDR	0
+#endif
+
+#if !defined(I2C4_BASE_ADDR)
+#define I2C4_BASE_ADDR	0
+#endif
+
 static struct mxc_i2c_bus mxc_i2c_buses[] = {
-#if defined(CONFIG_MX25)
-	{ 0, IMX_I2C_BASE },
-	{ 1, IMX_I2C2_BASE },
-	{ 2, IMX_I2C3_BASE },
-#elif defined(CONFIG_MX27)
-	{ 0, IMX_I2C1_BASE },
-	{ 1, IMX_I2C2_BASE },
-#elif defined(CONFIG_MX31) || defined(CONFIG_MX35) || \
-	defined(CONFIG_MX51) || defined(CONFIG_MX53) ||	\
-	defined(CONFIG_MX6)
-	{ 0, I2C1_BASE_ADDR },
-	{ 1, I2C2_BASE_ADDR },
-	{ 2, I2C3_BASE_ADDR },
-#elif defined(CONFIG_LS102XA)
-	{ 0, I2C1_BASE_ADDR, I2C_QUIRK_FLAG },
-	{ 1, I2C2_BASE_ADDR, I2C_QUIRK_FLAG },
-	{ 2, I2C3_BASE_ADDR, I2C_QUIRK_FLAG },
-#elif defined(CONFIG_VF610)
-	{ 0, I2C0_BASE_ADDR, I2C_QUIRK_FLAG },
-#elif defined(CONFIG_FSL_LSCH3)
+#if defined(CONFIG_LS102XA) || defined(CONFIG_FSL_LSCH3)
 	{ 0, I2C1_BASE_ADDR, I2C_QUIRK_FLAG },
 	{ 1, I2C2_BASE_ADDR, I2C_QUIRK_FLAG },
 	{ 2, I2C3_BASE_ADDR, I2C_QUIRK_FLAG },
 	{ 3, I2C4_BASE_ADDR, I2C_QUIRK_FLAG },
 #else
-#error "architecture not supported"
+	{ 0, I2C1_BASE_ADDR, 0 },
+	{ 1, I2C2_BASE_ADDR, 0 },
+	{ 2, I2C3_BASE_ADDR, 0 },
+	{ 3, I2C4_BASE_ADDR, 0 },
 #endif
-	{ }
 };
 
 struct mxc_i2c_bus *i2c_get_base(struct i2c_adapter *adap)
diff --git a/drivers/pwm/pwm-imx-util.c b/drivers/pwm/pwm-imx-util.c
index 79d86028..f92c370 100644
--- a/drivers/pwm/pwm-imx-util.c
+++ b/drivers/pwm/pwm-imx-util.c
@@ -21,16 +21,12 @@ struct pwm_regs *pwm_id_to_reg(int pwm_id)
 	switch (pwm_id) {
 	case 0:
 		return (struct pwm_regs *)PWM1_BASE_ADDR;
-		break;
 	case 1:
 		return (struct pwm_regs *)PWM2_BASE_ADDR;
-		break;
 	case 2:
 		return (struct pwm_regs *)PWM3_BASE_ADDR;
-		break;
 	case 3:
 		return (struct pwm_regs *)PWM4_BASE_ADDR;
-		break;
 	default:
 		printf("unknown pwm_id: %d\n", pwm_id);
 		break;
diff --git a/drivers/pwm/pwm-imx.c b/drivers/pwm/pwm-imx.c
index 40bf027..47799fc 100644
--- a/drivers/pwm/pwm-imx.c
+++ b/drivers/pwm/pwm-imx.c
@@ -18,6 +18,9 @@ int pwm_init(int pwm_id, int div, int invert)
 {
 	struct pwm_regs *pwm = (struct pwm_regs *)pwm_id_to_reg(pwm_id);
 
+	if (!pwm)
+		return -1;
+
 	writel(0, &pwm->ir);
 	return 0;
 }
@@ -28,6 +31,9 @@ int pwm_config(int pwm_id, int duty_ns, int period_ns)
 	unsigned long period_cycles, duty_cycles, prescale;
 	u32 cr;
 
+	if (!pwm)
+		return -1;
+
 	pwm_imx_get_parms(period_ns, duty_ns, &period_cycles, &duty_cycles,
 			  &prescale);
 
@@ -47,6 +53,9 @@ int pwm_enable(int pwm_id)
 {
 	struct pwm_regs *pwm = (struct pwm_regs *)pwm_id_to_reg(pwm_id);
 
+	if (!pwm)
+		return -1;
+
 	setbits_le32(&pwm->cr, PWMCR_EN);
 	return 0;
 }
@@ -55,5 +64,8 @@ void pwm_disable(int pwm_id)
 {
 	struct pwm_regs *pwm = (struct pwm_regs *)pwm_id_to_reg(pwm_id);
 
+	if (!pwm)
+		return;
+
 	clrbits_le32(&pwm->cr, PWMCR_EN);
 }
diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c
index 0bd9cfd..0d893c9 100644
--- a/drivers/thermal/imx_thermal.c
+++ b/drivers/thermal/imx_thermal.c
@@ -12,15 +12,15 @@
 #include <fuse.h>
 #include <asm/io.h>
 #include <asm/arch/clock.h>
+#include <asm/arch/sys_proto.h>
 #include <dm.h>
 #include <errno.h>
 #include <malloc.h>
 #include <thermal.h>
 #include <imx_thermal.h>
 
-#define TEMPERATURE_MIN		-40
-#define TEMPERATURE_HOT		80
-#define TEMPERATURE_MAX		125
+/* board will busyloop until this many degrees C below CPU max temperature */
+#define TEMPERATURE_HOT_DELTA   5 /* CPU maxT - 5C */
 #define FACTOR0			10000000
 #define FACTOR1			15976
 #define FACTOR2			4297157
@@ -34,14 +34,21 @@
 #define MISC0_REFTOP_SELBIASOFF		(1 << 3)
 #define TEMPSENSE1_MEASURE_FREQ		0xffff
 
+struct thermal_data {
+	unsigned int fuse;
+	int critical;
+	int minc;
+	int maxc;
+};
+
 static int read_cpu_temperature(struct udevice *dev)
 {
 	int temperature;
 	unsigned int reg, n_meas;
 	const struct imx_thermal_plat *pdata = dev_get_platdata(dev);
 	struct anatop_regs *anatop = (struct anatop_regs *)pdata->regs;
-	unsigned int *priv = dev_get_priv(dev);
-	u32 fuse = *priv;
+	struct thermal_data *priv = dev_get_priv(dev);
+	u32 fuse = priv->fuse;
 	int t1, n1;
 	u32 c1, c2;
 	u64 temp64;
@@ -119,13 +126,15 @@ static int read_cpu_temperature(struct udevice *dev)
 
 int imx_thermal_get_temp(struct udevice *dev, int *temp)
 {
+	struct thermal_data *priv = dev_get_priv(dev);
 	int cpu_tmp = 0;
 
 	cpu_tmp = read_cpu_temperature(dev);
-	while (cpu_tmp > TEMPERATURE_MIN && cpu_tmp < TEMPERATURE_MAX) {
-		if (cpu_tmp >= TEMPERATURE_HOT) {
-			printf("CPU Temperature is %d C, too hot to boot, waiting...\n",
-			       cpu_tmp);
+	while (cpu_tmp > priv->minc && cpu_tmp < priv->maxc) {
+		if (cpu_tmp >= priv->critical) {
+			printf("CPU Temperature (%dC) too close to max (%dC)",
+			       cpu_tmp, priv->maxc);
+			puts(" waiting...\n");
 			udelay(5000000);
 			cpu_tmp = read_cpu_temperature(dev);
 		} else {
@@ -147,7 +156,7 @@ static int imx_thermal_probe(struct udevice *dev)
 	unsigned int fuse = ~0;
 
 	const struct imx_thermal_plat *pdata = dev_get_platdata(dev);
-	unsigned int *priv = dev_get_priv(dev);
+	struct thermal_data *priv = dev_get_priv(dev);
 
 	/* Read Temperature calibration data fuse */
 	fuse_read(pdata->fuse_bank, pdata->fuse_word, &fuse);
@@ -158,7 +167,10 @@ static int imx_thermal_probe(struct udevice *dev)
 		return -EPERM;
 	}
 
-	*priv = fuse;
+	/* set critical cooling temp */
+	get_cpu_temp_grade(&priv->minc, &priv->maxc);
+	priv->critical = priv->maxc - TEMPERATURE_HOT_DELTA;
+	priv->fuse = fuse;
 
 	enable_thermal_clk();
 
@@ -170,6 +182,6 @@ U_BOOT_DRIVER(imx_thermal) = {
 	.id	= UCLASS_THERMAL,
 	.ops	= &imx_thermal_ops,
 	.probe	= imx_thermal_probe,
-	.priv_auto_alloc_size = sizeof(unsigned int),
+	.priv_auto_alloc_size = sizeof(struct thermal_data),
 	.flags  = DM_FLAG_PRE_RELOC,
 };