[u-boot,v3,3/6] aspeed/scu: Add definitions needed to configure pins for I2C
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Message ID 1480627115-5759-3-git-send-email-maxims@google.com
State Accepted
Headers show

Commit Message

Maxim Sloyko Dec. 1, 2016, 9:18 p.m. UTC
Add missing definitions for configuring I2C pins

Signed-off-by: Maxim Sloyko <maxims@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
---
Changes for v1:
	Split patch into two with this part adding definitions.
Changes for v2:
	Dropped redundant parens.
---
 arch/arm/include/asm/arch-aspeed/regs-scu.h | 9 +++++++++
 1 file changed, 9 insertions(+)

--
2.8.0.rc3.226.g39d4020

Patch
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diff --git a/arch/arm/include/asm/arch-aspeed/regs-scu.h b/arch/arm/include/asm/arch-aspeed/regs-scu.h
index 5445023..be8c8d7 100644
--- a/arch/arm/include/asm/arch-aspeed/regs-scu.h
+++ b/arch/arm/include/asm/arch-aspeed/regs-scu.h
@@ -844,11 +844,15 @@ 
 #define SCU_FUN_PIN_I2C5		(0x1 << 18)
 #define SCU_FUN_PIN_I2C4		(0x1 << 17)
 #define SCU_FUN_PIN_I2C3		(0x1 << 16)
+#define SCU_FUN_PIN_I2C(n)		(0x1 << (16 + (n) - 3))
 #define SCU_FUN_PIN_MII2_RX_DWN_DIS	(0x1 << 15)
 #define SCU_FUN_PIN_MII2_TX_DWN_DIS	(0x1 << 14)
 #define SCU_FUN_PIN_MII1_RX_DWN_DIS	(0x1 << 13)
 #define SCU_FUN_PIN_MII1_TX_DWN_DIS	(0x1 << 12)

+#define SCU_I2C_MIN_BUS_NUM			1
+#define SCU_I2C_MAX_BUS_NUM			14
+
 #define SCU_FUN_PIN_MII2_TX_DRIV(x)	(x << 10)
 #define SCU_FUN_PIN_MII2_TX_DRIV_MASK	(0x3 << 10)
 #define SCU_FUN_PIN_MII1_TX_DRIV(x)	(x << 8)
@@ -914,6 +918,11 @@ 
 #define SCU_FUN_PIN_ROMA4		(0x1 << 18)
 #define SCU_FUN_PIN_ROMA3		(0x1 << 17)
 #define SCU_FUN_PIN_ROMA2		(0x1 << 16)
+/* AST2500 only */
+#define SCU_FUN_PIN_SDA2		(0x1 << 15)
+#define SCU_FUN_PIN_SCL2		(0x1 << 14)
+#define SCU_FUN_PIN_SDA1		(0x1 << 13)
+#define SCU_FUN_PIN_SCL1		(0x1 << 12)

 /* AST_SCU_FUN_PIN_CTRL9		0xA8 - Multi-function Pin Control#9 */
 #define SCU_FUN_PIN_ROMA21		(0x1 << 3)