gpio: mpc8xxx_gpio: Fix for litte endian

Update gpio driver to use same logic for big-endian and little-endian

Signed-off-by: Biwen Li <biwen.li@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>

diff --git a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h
index b61666e..b64d7fb 100644 (file)
--- a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h
+++ b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h
@@ -589,5 +589,15 @@ struct ccsr_serdes {
        u8 res5[0x19fc - 0xa00];
 };
 
+struct ccsr_gpio {
+       u32     gpdir;
+       u32     gpodr;
+       u32     gpdat;
+       u32     gpier;
+       u32     gpimr;
+       u32     gpicr;
+       u32     gpibe;
+};
+
 #endif /*__ASSEMBLY__ */
 #endif /* __ARCH_FSL_LSCH3_IMMAP_H_ */

diff --git a/arch/arm/include/asm/arch-ls102xa/gpio.h b/arch/arm/include/asm/arch-ls102xa/gpio.h
index dad181e..517652b 100644 (file)
--- a/arch/arm/include/asm/arch-ls102xa/gpio.h
+++ b/arch/arm/include/asm/arch-ls102xa/gpio.h
@@ -13,4 +13,20 @@
 #ifndef __ASM_ARCH_LS102XA_GPIO_H_
 #define __ASM_ARCH_LS102XA_GPIO_H_
 
+struct ccsr_gpio {
+       u32     gpdir;
+       u32     gpodr;
+       u32     gpdat;
+       u32     gpier;
+       u32     gpimr;
+       u32     gpicr;
+       u32     gpibe;
+};
+
+struct mpc8xxx_gpio_plat {
+       ulong addr;
+       ulong size;
+       uint ngpios;
+};
+
 #endif

diff --git a/arch/powerpc/include/asm/immap_83xx.h b/arch/powerpc/include/asm/immap_83xx.h
index 609869c..a03f938 100644 (file)
--- a/arch/powerpc/include/asm/immap_83xx.h
+++ b/arch/powerpc/include/asm/immap_83xx.h
@@ -966,6 +966,19 @@ typedef struct immap {
 } immap_t;
 #endif
 
+struct ccsr_gpio {
+       u32     gpdir;
+       u32     gpodr;
+       u32     gpdat;
+       u32     gpier;
+       u32     gpimr;
+       u32     gpicr;
+       union   {
+                       u32     gpibe;
+                       u8      res0[0xE8];
+       };
+};
+
 #define CONFIG_SYS_MPC8xxx_DDR_OFFSET  (0x2000)
 #define CONFIG_SYS_FSL_DDR_ADDR \
                        (CONFIG_SYS_IMMR + CONFIG_SYS_MPC8xxx_DDR_OFFSET)

diff --git a/drivers/gpio/mpc8xxx_gpio.c b/drivers/gpio/mpc8xxx_gpio.c
index a964347..c733603 100644 (file)
--- a/drivers/gpio/mpc8xxx_gpio.c
+++ b/drivers/gpio/mpc8xxx_gpio.c
@@ -6,7 +6,7 @@
  * based on arch/powerpc/include/asm/mpc85xx_gpio.h, which is
  *
  * Copyright 2010 eXMeritus, A Boeing Company
- * Copyright 2020 NXP
+ * Copyright 2020-2021 NXP
  */
 
 #include <common.h>
@@ -16,16 +16,6 @@
 #include <asm/io.h>
 #include <dm/of_access.h>
 
-struct ccsr_gpio {
-       u32     gpdir;
-       u32     gpodr;
-       u32     gpdat;
-       u32     gpier;
-       u32     gpimr;
-       u32     gpicr;
-       u32     gpibe;
-};
-
 struct mpc8xxx_gpio_data {
        /* The bank's register base in memory */
        struct ccsr_gpio __iomem *base;
@@ -187,32 +177,11 @@ static int mpc8xxx_gpio_of_to_plat(struct udevice *dev)
 {
        struct mpc8xxx_gpio_plat *plat = dev_get_plat(dev);
        struct mpc8xxx_gpio_data *data = dev_get_priv(dev);
-       fdt_addr_t addr;
-       u32 i;
-       u32 reg[4];
 
-       if (ofnode_read_bool(dev_ofnode(dev), "little-endian"))
+       if (dev_read_bool(dev, "little-endian"))
                data->little_endian = true;
 
-       if (data->little_endian)
-               dev_read_u32_array(dev, "reg", reg, 4);
-       else
-               dev_read_u32_array(dev, "reg", reg, 2);
-
-       if (data->little_endian) {
-               for (i = 0; i < 2; i++)
-                       reg[i] = be32_to_cpu(reg[i]);
-       }
-
-       addr = dev_translate_address(dev, reg);
-
-       plat->addr = addr;
-
-       if (data->little_endian)
-               plat->size = reg[3];
-       else
-               plat->size = reg[1];
-
+       plat->addr = (ulong)dev_read_addr_size_index(dev, 0, (fdt_size_t *)&plat->size);
        plat->ngpios = dev_read_u32_default(dev, "ngpios", 32);
 
        return 0;
@@ -257,11 +226,11 @@ static int mpc8xxx_gpio_probe(struct udevice *dev)
        if (!str)
                return -ENOMEM;
 
-       if (ofnode_device_is_compatible(dev_ofnode(dev), "fsl,qoriq-gpio")) {
-               unsigned long gpibe = data->addr + sizeof(struct ccsr_gpio)
-                       - sizeof(u32);
-
-               out_be32((unsigned int *)gpibe, 0xffffffff);
+       if (device_is_compatible(dev, "fsl,qoriq-gpio")) {
+               if (data->little_endian)
+                       out_le32(&data->base->gpibe, 0xffffffff);
+               else
+                       out_be32(&data->base->gpibe, 0xffffffff);
        }
 
        uc_priv->bank_name = str;