commit 15843bdad076149e9d04dcfaa07f4eedda84acfa
author Lee Leahy <leroy.p.leahy@intel.com> Sun May 15 15:05:56 2016 -0700
committer Leroy P Leahy <leroy.p.leahy@intel.com> Wed May 18 00:58:06 2016 +0200
tree 42caf73696eccd79a2128718330111dc5495ea6d
parent ac690b1e9ba1318375bc7fba088aef5c7e3c07ce

mainboard/intel/galileo: Add I2C chip initialization

Add I2C chip initialization for the Galileo boards.

TEST=Build and run on Galileo Gen2

Change-Id: Ib5284d5cd7a67de2f3f98940837ceb2aa69af468
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: https://review.coreboot.org/14829
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>

src/mainboard/intel/galileo/gpio.c

diff --git a/src/mainboard/intel/galileo/gpio.c b/src/mainboard/intel/galileo/gpio.c
index 00b4240..a411c5a 100644
--- a/src/mainboard/intel/galileo/gpio.c
+++ b/src/mainboard/intel/galileo/gpio.c
@@ -16,10 +16,29 @@
 #include <arch/io.h>
 #include <console/console.h>
 #include <soc/ramstage.h>
-#include <soc/reg_access.h>
+#include "reg_access.h"
 #include "gen1.h"
 #include "gen2.h"
 
+void mainboard_gpio_i2c_init(device_t dev)
+{
+	const struct reg_script *script;
+
+	printk(BIOS_INFO, "Galileo I2C chip initialization\n");
+
+	/* Determine the correct script for the board */
+	if (IS_ENABLED(CONFIG_GALILEO_GEN2))
+		script = gen2_i2c_init;
+	else
+		/* Determine which I2C address is in use */
+		script = (reg_legacy_gpio_read (R_QNC_GPIO_RGLVL_RESUME_WELL)
+			& GALILEO_DETERMINE_IOEXP_SLA_RESUMEWELL_GPIO)
+			? gen1_i2c_0x20_init : gen1_i2c_0x21_init;
+
+	/* Initialize the I2C chips */
+	reg_script_run(script);
+}
+
 void mainboard_gpio_init(void)
 {
 	const struct reg_script *script;