[PATCH] tools/intel_reg_write:Adding lib calls for CHT/VLV

[meghanelogal <megha.i.nelogal@xxxxxxxxx>]

From: meghanelogal <megha.i.nelogal@xxxxxxxxx>

Calling the library functions for reg read and write

Signed-off-by: meghanelogal <megha.i.nelogal@xxxxxxxxx>
---
 tools/intel_reg_write.c |   28 +++++++++++++++++++++-------
 1 file changed, 21 insertions(+), 7 deletions(-)

diff --git a/tools/intel_reg_write.c b/tools/intel_reg_write.c
index ff4e561..8ac29e4 100644
--- a/tools/intel_reg_write.c
+++ b/tools/intel_reg_write.c
@@ -34,9 +34,7 @@
 
 int main(int argc, char** argv)
 {
-	uint32_t reg, value;
-	volatile uint32_t *ptr;
-
+	uint32_t reg = 0, value, initial_value, final_value;
 	if (argc < 3) {
 		printf("Usage: %s addr value\n", argv[0]);
 		printf("  WARNING: This is dangerous to you and your system's health.\n");
@@ -45,13 +43,29 @@ int main(int argc, char** argv)
 	}
 
 	intel_register_access_init(intel_get_pci_device(), 0);
+
 	sscanf(argv[1], "0x%x", &reg);
 	sscanf(argv[2], "0x%x", &value);
-	ptr = (volatile uint32_t *)((volatile char *)mmio + reg);
 
-	printf("Value before: 0x%X\n", *ptr);
-	*ptr = value;
-	printf("Value after: 0x%X\n", *ptr);
+	struct pci_device *dev = intel_get_pci_device();
+	if (IS_VALLEYVIEW(dev->device_id) || IS_CHERRYVIEW(dev->device_id))
+		initial_value = intel_register_read(reg+0x180000);
+	else
+		initial_value = intel_register_read(reg);
+
+	printf("Value before: 0x%X\n", initial_value);
+
+	if (IS_VALLEYVIEW(dev->device_id) || IS_CHERRYVIEW(dev->device_id))
+		intel_register_write(reg+0x180000, value);
+	else
+		intel_register_write(reg, value);
+
+	if (IS_VALLEYVIEW(dev->device_id) || IS_CHERRYVIEW(dev->device_id))
+		final_value = intel_register_read(reg+0x180000);
+	else
+		final_value = intel_register_read(reg);
+
+	printf("Value after: 0x%X\n", final_value);
 
 	intel_register_access_fini();
 	return 0;
-- 
1.7.9.5

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