power: pmic: Let PFUZE3000 see all 256 registers

[u-boot] / drivers / i2c / mxc_i2c.c

diff --git a/drivers/i2c/mxc_i2c.c b/drivers/i2c/mxc_i2c.c
index 110b9d6119255e9cbdfd0cc7ef4d1b510ad9688f..9999d9fe5e4bd01fd5155a307b91017f0328eabe 100644 (file)
--- a/drivers/i2c/mxc_i2c.c
+++ b/drivers/i2c/mxc_i2c.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * i2c driver for Freescale i.MX series
  *
@@ -10,15 +11,13 @@
  *  Copyright (C) 2007 RightHand Technologies, Inc.
  *  Copyright (C) 2008 Darius Augulis <darius.augulis at teltonika.lt>
  *
- *
- * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #include <common.h>
 #include <asm/arch/clock.h>
 #include <asm/arch/imx-regs.h>
 #include <linux/errno.h>
-#include <asm/imx-common/mxc_i2c.h>
+#include <asm/mach-imx/mxc_i2c.h>
 #include <asm/io.h>
 #include <i2c.h>
 #include <watchdog.h>
@@ -176,7 +175,7 @@ static int bus_i2c_set_bus_speed(struct mxc_i2c_bus *i2c_bus, int speed)
        int reg_shift = quirk ? VF610_I2C_REGSHIFT : IMX_I2C_REGSHIFT;
 
        if (!base)
-               return -ENODEV;
+               return -EINVAL;
 
        /* Store divider value */
        writeb(idx, base + (IFDR << reg_shift));
@@ -239,7 +238,7 @@ static int tx_byte(struct mxc_i2c_bus *i2c_bus, u8 byte)
        if (ret < 0)
                return ret;
        if (ret & I2SR_RX_NO_AK)
-               return -ENODEV;
+               return -EREMOTEIO;
        return 0;
 }
 
@@ -317,16 +316,19 @@ static int i2c_init_transfer_(struct mxc_i2c_bus *i2c_bus, u8 chip,
        temp |= I2CR_MTX | I2CR_TX_NO_AK;
        writeb(temp, base + (I2CR << reg_shift));
 
-       /* write slave address */
-       ret = tx_byte(i2c_bus, chip << 1);
-       if (ret < 0)
-               return ret;
-
-       while (alen--) {
-               ret = tx_byte(i2c_bus, (addr >> (alen * 8)) & 0xff);
+       if (alen >= 0)  {
+               /* write slave address */
+               ret = tx_byte(i2c_bus, chip << 1);
                if (ret < 0)
                        return ret;
+
+               while (alen--) {
+                       ret = tx_byte(i2c_bus, (addr >> (alen * 8)) & 0xff);
+                       if (ret < 0)
+                               return ret;
+               }
        }
+
        return 0;
 }
 
@@ -418,14 +420,14 @@ static int i2c_init_transfer(struct mxc_i2c_bus *i2c_bus, u8 chip,
                        VF610_I2C_REGSHIFT : IMX_I2C_REGSHIFT;
 
        if (!i2c_bus->base)
-               return -ENODEV;
+               return -EINVAL;
 
        for (retry = 0; retry < 3; retry++) {
                ret = i2c_init_transfer_(i2c_bus, chip, addr, alen);
                if (ret >= 0)
                        return 0;
                i2c_imx_stop(i2c_bus);
-               if (ret == -ENODEV)
+               if (ret == -EREMOTEIO)
                        return ret;
 
                printf("%s: failed for chip 0x%x retry=%d\n", __func__, chip,
@@ -537,9 +539,11 @@ static int bus_i2c_read(struct mxc_i2c_bus *i2c_bus, u8 chip, u32 addr,
        if (ret < 0)
                return ret;
 
-       temp = readb(base + (I2CR << reg_shift));
-       temp |= I2CR_RSTA;
-       writeb(temp, base + (I2CR << reg_shift));
+       if (alen >= 0) {
+               temp = readb(base + (I2CR << reg_shift));
+               temp |= I2CR_RSTA;
+               writeb(temp, base + (I2CR << reg_shift));
+       }
 
        ret = tx_byte(i2c_bus, (chip << 1) | 1);
        if (ret < 0) {
@@ -584,6 +588,22 @@ static int bus_i2c_write(struct mxc_i2c_bus *i2c_bus, u8 chip, u32 addr,
 #define I2C4_BASE_ADDR 0
 #endif
 
+#if !defined(I2C5_BASE_ADDR)
+#define I2C5_BASE_ADDR 0
+#endif
+
+#if !defined(I2C6_BASE_ADDR)
+#define I2C6_BASE_ADDR 0
+#endif
+
+#if !defined(I2C7_BASE_ADDR)
+#define I2C7_BASE_ADDR 0
+#endif
+
+#if !defined(I2C8_BASE_ADDR)
+#define I2C8_BASE_ADDR 0
+#endif
+
 static struct mxc_i2c_bus mxc_i2c_buses[] = {
 #if defined(CONFIG_ARCH_LS1021A) || defined(CONFIG_VF610) || \
        defined(CONFIG_FSL_LAYERSCAPE)
@@ -591,11 +611,19 @@ static struct mxc_i2c_bus mxc_i2c_buses[] = {
        { 1, I2C2_BASE_ADDR, I2C_QUIRK_FLAG },
        { 2, I2C3_BASE_ADDR, I2C_QUIRK_FLAG },
        { 3, I2C4_BASE_ADDR, I2C_QUIRK_FLAG },
+       { 4, I2C5_BASE_ADDR, I2C_QUIRK_FLAG },
+       { 5, I2C6_BASE_ADDR, I2C_QUIRK_FLAG },
+       { 6, I2C7_BASE_ADDR, I2C_QUIRK_FLAG },
+       { 7, I2C8_BASE_ADDR, I2C_QUIRK_FLAG },
 #else
        { 0, I2C1_BASE_ADDR, 0 },
        { 1, I2C2_BASE_ADDR, 0 },
        { 2, I2C3_BASE_ADDR, 0 },
        { 3, I2C4_BASE_ADDR, 0 },
+       { 4, I2C5_BASE_ADDR, 0 },
+       { 5, I2C6_BASE_ADDR, 0 },
+       { 6, I2C7_BASE_ADDR, 0 },
+       { 7, I2C8_BASE_ADDR, 0 },
 #endif
 };
 
@@ -733,6 +761,38 @@ U_BOOT_I2C_ADAP_COMPLETE(mxc3, mxc_i2c_init, mxc_i2c_probe,
                         CONFIG_SYS_MXC_I2C4_SLAVE, 3)
 #endif
 
+#ifdef CONFIG_SYS_I2C_MXC_I2C5
+U_BOOT_I2C_ADAP_COMPLETE(mxc4, mxc_i2c_init, mxc_i2c_probe,
+                        mxc_i2c_read, mxc_i2c_write,
+                        mxc_i2c_set_bus_speed,
+                        CONFIG_SYS_MXC_I2C5_SPEED,
+                        CONFIG_SYS_MXC_I2C5_SLAVE, 4)
+#endif
+
+#ifdef CONFIG_SYS_I2C_MXC_I2C6
+U_BOOT_I2C_ADAP_COMPLETE(mxc5, mxc_i2c_init, mxc_i2c_probe,
+                        mxc_i2c_read, mxc_i2c_write,
+                        mxc_i2c_set_bus_speed,
+                        CONFIG_SYS_MXC_I2C6_SPEED,
+                        CONFIG_SYS_MXC_I2C6_SLAVE, 5)
+#endif
+
+#ifdef CONFIG_SYS_I2C_MXC_I2C7
+U_BOOT_I2C_ADAP_COMPLETE(mxc6, mxc_i2c_init, mxc_i2c_probe,
+                        mxc_i2c_read, mxc_i2c_write,
+                        mxc_i2c_set_bus_speed,
+                        CONFIG_SYS_MXC_I2C7_SPEED,
+                        CONFIG_SYS_MXC_I2C7_SLAVE, 6)
+#endif
+
+#ifdef CONFIG_SYS_I2C_MXC_I2C8
+U_BOOT_I2C_ADAP_COMPLETE(mxc7, mxc_i2c_init, mxc_i2c_probe,
+                        mxc_i2c_read, mxc_i2c_write,
+                        mxc_i2c_set_bus_speed,
+                        CONFIG_SYS_MXC_I2C8_SPEED,
+                        CONFIG_SYS_MXC_I2C8_SLAVE, 7)
+#endif
+
 #else
 
 static int mxc_i2c_set_bus_speed(struct udevice *bus, unsigned int speed)
@@ -754,7 +814,7 @@ static int mxc_i2c_probe(struct udevice *bus)
 
        addr = devfdt_get_addr(bus);
        if (addr == FDT_ADDR_T_NONE)
-               return -ENODEV;
+               return -EINVAL;
 
        i2c_bus->base = addr;
        i2c_bus->index = bus->seq;
@@ -779,11 +839,11 @@ static int mxc_i2c_probe(struct udevice *bus)
                ret2 = gpio_request_by_name_nodev(offset_to_ofnode(node),
                                "sda-gpios", 0, &i2c_bus->sda_gpio,
                                GPIOD_IS_OUT);
-               if (!dm_gpio_is_valid(&i2c_bus->sda_gpio) |
-                   !dm_gpio_is_valid(&i2c_bus->scl_gpio) |
-                   ret | ret2) {
+               if (!dm_gpio_is_valid(&i2c_bus->sda_gpio) ||
+                   !dm_gpio_is_valid(&i2c_bus->scl_gpio) ||
+                   ret || ret2) {
                        dev_err(dev, "i2c bus %d at %lu, fail to request scl/sda gpio\n", bus->seq, i2c_bus->base);
-                       return -ENODEV;
+                       return -EINVAL;
                }
        }