From: Dhaval Shah <dhaval.shah@xilinx.com>
Date: Tue, 27 Mar 2018 06:51:13 +0000 (-0700)
Subject: soc: xilinx: vcu: Provided API to get number of cores
X-Git-Tag: xlnx_rebase_v4.14_2018.1~5
X-Git-Url: https://rtime.felk.cvut.cz/gitweb/zynq/linux.git/commitdiff_plain/e070ada07acaced31edd7359d239ca9b620658ec

soc: xilinx: vcu: Provided API to get number of cores

Number of cores related information is provided
through the xvcu_get_num_cores API.

Signed-off-by: Dhaval Shah <dshah@xilinx.com>
Reviewed-by: Varunkumar Allagadapa <varunkumar.allagadapa@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
---

diff --git a/drivers/soc/xilinx/xlnx_vcu.c b/drivers/soc/xilinx/xlnx_vcu.c
index 3173c822e09a..98467ac33c1a 100644
--- a/drivers/soc/xilinx/xlnx_vcu.c
+++ b/drivers/soc/xilinx/xlnx_vcu.c
@@ -43,6 +43,7 @@
 #define VCU_BUFFER_B_FRAME		0x5c
 #define VCU_WPP_EN			0x60
 #define VCU_PLL_CLK_DEC			0x64
+#define VCU_NUM_CORE			0x6c
 #define VCU_GASKET_INIT			0x74
 #define VCU_GASKET_VALUE		0x03
 
@@ -317,6 +318,19 @@ u32 xvcu_get_clock_frequency(struct xvcu_device *xvcu)
 }
 EXPORT_SYMBOL_GPL(xvcu_get_clock_frequency);
 
+/**
+ * xvcu_get_num_cores - read the number of core register
+ * @xvcu:	Pointer to the xvcu_device structure
+ *
+ * Return:	Returns 32bit value
+ *
+ */
+u32 xvcu_get_num_cores(struct xvcu_device *xvcu)
+{
+	return xvcu_read(xvcu->logicore_reg_ba, VCU_NUM_CORE);
+}
+EXPORT_SYMBOL_GPL(xvcu_get_num_cores);
+
 /**
  * xvcu_set_vcu_pll_info - Set the VCU PLL info
  * @xvcu:	Pointer to the xvcu_device structure
diff --git a/include/soc/xilinx/xlnx_vcu.h b/include/soc/xilinx/xlnx_vcu.h
index c81c757eae68..9a226c634569 100644
--- a/include/soc/xilinx/xlnx_vcu.h
+++ b/include/soc/xilinx/xlnx_vcu.h
@@ -15,5 +15,6 @@ struct xvcu_device;
 u32 xvcu_get_color_depth(struct xvcu_device *xvcu);
 u32 xvcu_get_memory_depth(struct xvcu_device *xvcu);
 u32 xvcu_get_clock_frequency(struct xvcu_device *xvcu);
+u32 xvcu_get_num_cores(struct xvcu_device *xvcu);
 
 #endif  /* _XILINX_VCU_H_ */