[U-Boot] [PATCH] armv8: fsl-layerscape: Add support of GPIO structure

[Pratiyush Srivastava]

Layerscape supports GPIO registers to conrol GPIO singals.
Add support of GPIO structure to enable GPIO access.

Signed-off-by: Pratiyush Srivastava <pratiyush.srivastava at nxp.com>
Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha at nxp.com>
---
 arch/arm/cpu/armv8/fsl-layerscape/Kconfig              | 4 ++++
 arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h | 9 +++++++++
 2 files changed, 13 insertions(+)

diff --git a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
index f8057ba..6af39d9 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
+++ b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
@@ -2,6 +2,7 @@ config ARCH_LS1012A
 	bool "Freescale Layerscape LS1012A SoC"
 	select SYS_FSL_MMDC
 	select SYS_FSL_ERRATUM_A010315
+	select SYS_GPIO1_ADDR
 
 config ARCH_LS1043A
 	bool "Freescale Layerscape LS1043A SoC"
@@ -15,3 +16,6 @@ config SYS_FSL_MMDC
 
 config SYS_FSL_ERRATUM_A010315
 	bool "Workaround for PCIe erratum A010315"
+
+config SYS_GPIO1_ADDR
+	bool "Support for GPIO structure to enable GPIO access"
diff --git a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h
index df51871..d9d7cb6 100644
--- a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h
+++ b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h
@@ -584,6 +584,15 @@ struct ccsr_cci400 {
 	u8 res_e004[0x10000 - 0xe004];
 };
 
+typedef struct ccsr_gpio {
+	u32	gpdir;
+	u32	gpodr;
+	u32	gpdat;
+	u32	gpier;
+	u32	gpimr;
+	u32	gpicr;
+} ccsr_gpio_t;
+
 /* MMU 500 */
 #define SMMU_SCR0			(SMMU_BASE + 0x0)
 #define SMMU_SCR1			(SMMU_BASE + 0x4)
-- 
2.7.4