diff mbox series

[v2,01/33] gpio: mpc8xxx_gpio: fix a bug on ls1046ardb

Message ID 20201208085905.46870-2-biwen.li@oss.nxp.com
State Superseded
Delegated to: Priyanka Jain
Headers show
Series gpio: layerscape: fix gpio bug and enable gpio | expand

Commit Message

Biwen Li Dec. 8, 2020, 8:58 a.m. UTC 
From: Biwen Li <biwen.li@nxp.com>

Fix a bug as belows,
=> gpio status -a
"Synchronous Abort" handler, esr 0x96000061
elr: 0000000082047964 lr : 0000000082047960 (reloc)
elr: 00000000fbd72964 lr : 00000000fbd72960
x0 : 00000000ffffffff x1 : 000000000000000a
x2 : 0000000000000020 x3 : 0000000000000001
x4 : 0000000000000000 x5 : 0000000000000030
x6 : 0000000000000020 x7 : 0000000000000002
x8 : 00000000ffffffe0 x9 : 0000000000000008
x10: 0000000000000010 x11: 0000000000000006
x12: 000000000001869f x13: 0000000000000230
x14: 00000000fbc23e9c x15: 00000000ffffffff

Signed-off-by: Biwen Li <biwen.li@nxp.com>
---
 .../asm/arch-fsl-layerscape/immap_lsch3.h     | 10 +++++
 drivers/gpio/mpc8xxx_gpio.c                   | 45 +++----------------
 2 files changed, 17 insertions(+), 38 deletions(-)

Comments

Priyanka Jain (OSS) Jan. 19, 2021, 6:29 a.m. UTC | #1 
>-----Original Message-----
>From: U-Boot <u-boot-bounces@lists.denx.de> On Behalf Of Biwen Li
>Sent: Tuesday, December 8, 2020 2:29 PM
>To: Priyanka Jain <priyanka.jain@nxp.com>
>Cc: Jiafei Pan <jiafei.pan@nxp.com>; u-boot@lists.denx.de; Xiaobo Xie
><xiaobo.xie@nxp.com>; Biwen Li <biwen.li@nxp.com>
>Subject: [v2 01/33] gpio: mpc8xxx_gpio: fix a bug on ls1046ardb
>
>From: Biwen Li <biwen.li@nxp.com>
>
Please provide summary of changes this patch is doing in patch description.
Also ensure to update copyright (year) for all the files if required.
>Fix a bug as belows,
>=> gpio status -a
>"Synchronous Abort" handler, esr 0x96000061
>elr: 0000000082047964 lr : 0000000082047960 (reloc)
>elr: 00000000fbd72964 lr : 00000000fbd72960
>x0 : 00000000ffffffff x1 : 000000000000000a
>x2 : 0000000000000020 x3 : 0000000000000001
>x4 : 0000000000000000 x5 : 0000000000000030
>x6 : 0000000000000020 x7 : 0000000000000002
>x8 : 00000000ffffffe0 x9 : 0000000000000008
>x10: 0000000000000010 x11: 0000000000000006
>x12: 000000000001869f x13: 0000000000000230
>x14: 00000000fbc23e9c x15: 00000000ffffffff
>
>Signed-off-by: Biwen Li <biwen.li@nxp.com>
>---
<snip>

Regards
Priyanka
diff mbox series

Patch

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 24a64b7575..85c894a598 100644
--- 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/drivers/gpio/mpc8xxx_gpio.c b/drivers/gpio/mpc8xxx_gpio.c
index 27881a7322..d598d3e19c 100644
--- a/drivers/gpio/mpc8xxx_gpio.c
+++ b/drivers/gpio/mpc8xxx_gpio.c
@@ -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_ofdata_to_platdata(struct udevice *dev)
 {
 	struct mpc8xxx_gpio_plat *plat = dev_get_platdata(dev);
 	struct mpc8xxx_gpio_data *data = dev_get_priv(dev);
-	fdt_addr_t addr;
-	u32 i;
-	u32 reg[4];
 
-	if (ofnode_read_bool(dev->node, "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->node, "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;