[U-Boot] [PATCH][v3] armv8: fsl-layerscape: Add support of GPIO structure

[Prabhakar Kushwaha]

Layerscape Gen2 SoC supports GPIO registers to control GPIO
signals. Adding support of GPIO structure to access GPIO
registers.

Signed-off-by: Pratiyush Srivastava <pratiyush.srivastava at nxp.com>
Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha at nxp.com>
---
Changes for v2: Incorporated York's comments
	- Removed CONFIG_SYS_GPIO1_ADDR as bool
	- Renamed CONFIG_SYS_GPIO1_ADDR

Changes for v3: 
	- Corrected the GPIO address
	- updated patch description

This structure is required while supporting ethernent in LS1012AFRDM.


 arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

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 d684a07..33f3e2e 100644
--- a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h
+++ b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h
@@ -52,6 +52,11 @@
 #define QSPI0_BASE_ADDR				(CONFIG_SYS_IMMR + 0x00550000)
 #define DSPI1_BASE_ADDR				(CONFIG_SYS_IMMR + 0x01100000)
 
+#define GPIO1_BASE_ADDR				(CONFIG_SYS_IMMR + 0x1300000)
+#define GPIO2_BASE_ADDR				(CONFIG_SYS_IMMR + 0x1310000)
+#define GPIO3_BASE_ADDR				(CONFIG_SYS_IMMR + 0x1320000)
+#define GPIO4_BASE_ADDR				(CONFIG_SYS_IMMR + 0x1330000)
+
 #define LPUART_BASE				(CONFIG_SYS_IMMR + 0x01950000)
 
 #define AHCI_BASE_ADDR				(CONFIG_SYS_IMMR + 0x02200000)
@@ -588,6 +593,16 @@ struct ccsr_cci400 {
 	u8 res_e004[0x10000 - 0xe004];
 };
 
+struct ccsr_gpio {
+	u32	gpdir;
+	u32	gpodr;
+	u32	gpdat;
+	u32	gpier;
+	u32	gpimr;
+	u32	gpicr;
+	u32	gpibe;
+};
+
 /* MMU 500 */
 #define SMMU_SCR0			(SMMU_BASE + 0x0)
 #define SMMU_SCR1			(SMMU_BASE + 0x4)
-- 
2.7.4