drivers:net:fsl-mc: Update MC address calculation

Update MC address calculation as per MC design requirement of address as least significant 512MB address of MC private allocated memory, i.e. address should point to end address masked with 512MB offset in private DRAM block. Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com> Signed-off-by: Ashish Kumar <ashish.kumar@nxp.com> [YS: reformatted commit message] Reviewed-by: York Sun <york.sun@nxp.com>

drivers:net:fsl-mc: Update MC address calculation
Update MC address calculation as per MC design requirement of address as least significant 512MB address of MC private allocated memory, i.e. address should point to end address masked with 512MB offset in private DRAM block. Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com> Signed-off-by: Ashish Kumar <ashish.kumar@nxp.com> [YS: reformatted commit message] Reviewed-by: York Sun <york.sun@nxp.com>
Priyanka Jain · York Sun
1 parent c055cee195
Showing 1 changed file with 9 additions and 2 deletions Side-by-side Diff
drivers/net/fsl-mc/mc.c
@@ -800,12 +800,19 @@
 	return mc_dpl_applied;
 }
  
-/**
+/*
  * Return the MC address of private DRAM block.
+ * As per MC design document, MC initial base address
+ * should be least significant 512MB address of MC private
+ * memory, i.e. address should point to end address masked
+ * with 512MB offset in private DRAM block.
  */
 u64 mc_get_dram_addr(void)
 {
-	return gd->arch.resv_ram;
+	size_t mc_ram_size = mc_get_dram_block_size();
+
+	return (gd->arch.resv_ram + mc_ram_size - 1) &
+		MC_RAM_BASE_ADDR_ALIGNMENT_MASK;
 }
  
 /**
...	...	@@ -800,12 +800,19 @@
800	800	return mc_dpl_applied;
801	801	}
802	802
803		-/**
	803	+/*
804	804	* Return the MC address of private DRAM block.
	805	+ * As per MC design document, MC initial base address
	806	+ * should be least significant 512MB address of MC private
	807	+ * memory, i.e. address should point to end address masked
	808	+ * with 512MB offset in private DRAM block.
805	809	*/
806	810	u64 mc_get_dram_addr(void)
807	811	{
808		- return gd->arch.resv_ram;
	812	+ size_t mc_ram_size = mc_get_dram_block_size();
	813	+
	814	+ return (gd->arch.resv_ram + mc_ram_size - 1) &
	815	+ MC_RAM_BASE_ADDR_ALIGNMENT_MASK;
809	816	}
810	817
811	818	/**