Merge pull request #19 from jk-ozlabs/openbmc/scu-setup

arm/mach-aspeed: Perform SCU setup for i2c busses 4-8
openbmc · Nov 20, 2015 · 03079e8 · 03079e8
2 parents 1da9004 + cf27544
commit 03079e8
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/arch/arm/mach-aspeed/aspeed.c b/arch/arm/mach-aspeed/aspeed.c
@@ -183,6 +183,14 @@ static void __init aspeed_init_early(void)
 	udbg_uart_putc('O');
 	udbg_uart_putc('\n');
 
+	/*
+	 * temporary: enable i2c usage of the shared GPIO/I2C pins for
+	 * i2c busses 4 - 8
+	 */
+	reg = readl(AST_IO(AST_BASE_SCU | 0x90));
+	reg |= 0x3E0000;
+	writel(reg, AST_IO(AST_BASE_SCU | 0x90));
+
 	aspeed_dump_scu();
 }