armv8/fsl-lsch2: correct QMAN clock

Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>

arch/arm/cpu/armv8/fsl-layerscape/Kconfig

@@ -469,6 +469,14 @@ config SYS_FSL_SDHC_CLK_DIV
 	help
 	  This is the divider that is used to derive SDHC clock from Platform
 	  clock, in another word SDHC_clk = Platform_clk / this_divider.
+
+config SYS_FSL_QMAN_CLK_DIV
+	int "QMAN clock divider"
+	default 1 if ARCH_LS1043A
+	default 2
+	help
+	  This is the divider that is used to derive QMAN clock from Platform
+	  clock, in another word QMAN_clk = Platform_clk / this_divider.
 endmenu
 
 config RESV_RAM

arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch2_speed.c

@@ -155,7 +155,9 @@ void get_sys_info(struct sys_info *sys_info)
 						CONFIG_SYS_FSL_IFC_CLK_DIV;
 #endif
 #ifdef CONFIG_SYS_DPAA_QBMAN
-	sys_info->freq_qman = sys_info->freq_systembus;
+	sys_info->freq_qman = (sys_info->freq_systembus /
+				CONFIG_SYS_FSL_PCLK_DIV) /
+				CONFIG_SYS_FSL_QMAN_CLK_DIV;
 #endif
 }