ARM: 8891/1: EDAC: armada_xp: Add support for more SoCs

The Armada 38x and other integrated SoCs use a reduced pin count so the
width of the SDRAM interface is smaller than the Armada XP SoCs. This
means that the definition of "full" and "half" width is reduced from
64/32 to 32/16.

Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>

diff --git a/drivers/edac/armada_xp_edac.c b/drivers/edac/armada_xp_edac.c
index 3759a4f..7f227bd 100644 (file)
--- a/drivers/edac/armada_xp_edac.c
+++ b/drivers/edac/armada_xp_edac.c
@@ -332,6 +332,11 @@ static int axp_mc_probe(struct platform_device *pdev)
 
        axp_mc_read_config(mci);
 
+       /* These SoCs have a reduced width bus */
+       if (of_machine_is_compatible("marvell,armada380") ||
+           of_machine_is_compatible("marvell,armadaxp-98dx3236"))
+               drvdata->width /= 2;
+
        /* configure SBE threshold */
        /* it seems that SBEs are not captured otherwise */
        writel(1 << SDRAM_ERR_CTRL_THR_OFFSET, drvdata->base + SDRAM_ERR_CTRL_REG);