From: Ye Li <ye...@nxp.com>
Add Kconfig for enabling reference events counter in DDRC performance
monitor by default
Signed-off-by: Ye Li <ye...@nxp.com>
Signed-off-by: Peng Fan <peng....@nxp.com>
---
drivers/ddr/imx/imx9/Kconfig | 6 ++++++
drivers/ddr/imx/imx9/ddr_init.c | 4 ++++
2 files changed, 10 insertions(+)
diff --git a/drivers/ddr/imx/imx9/Kconfig b/drivers/ddr/imx/imx9/Kconfig
index a16ddc65e01..123ad173cfc 100644
--- a/drivers/ddr/imx/imx9/Kconfig
+++ b/drivers/ddr/imx/imx9/Kconfig
@@ -11,6 +11,12 @@ config IMX9_LPDDR4X
help
Select the i.MX9 LPDDR4/4X driver support on i.MX9 SOC.
+config IMX9_DRAM_PM_COUNTER
+ bool "imx9 DDRC performance monitor counter"
+ default y
+ help
+ Enable DDR controller performance monitor counter for reference
events.
+
config SAVED_DRAM_TIMING_BASE
hex "Define the base address for saved dram timing"
help
diff --git a/drivers/ddr/imx/imx9/ddr_init.c b/drivers/ddr/imx/imx9/ddr_init.c
index 16eac65105f..8b8ec7f8de3 100644
--- a/drivers/ddr/imx/imx9/ddr_init.c
+++ b/drivers/ddr/imx/imx9/ddr_init.c
@@ -112,6 +112,10 @@ int ddr_init(struct dram_timing_info *dram_timing)
ddrc_config(dram_timing->ddrc_cfg, dram_timing->ddrc_cfg_num);
debug("DDRINFO: ddrc config done\n");
+#ifdef CONFIG_IMX9_DRAM_PM_COUNTER
+ writel(0x200000, REG_DDR_DEBUG_19);
+#endif
+
check_dfi_init_complete();
regval = readl(REG_DDR_SDRAM_CFG);
--
2.36.0
