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authorGeert Uytterhoeven <geert+renesas@glider.be>2015-11-10 20:57:23 +0300
committerGeert Uytterhoeven <geert+renesas@glider.be>2015-12-17 13:18:52 +0300
commit9ed44bb209d0ece90abb6b4279d8b18e17680476 (patch)
treef0429ad0b137bddc81012f2807fc712c9c85fcdc /drivers/tty
parentf443ff80d02d74be6c3930e325a6573eb06347ea (diff)
downloadlinux-9ed44bb209d0ece90abb6b4279d8b18e17680476.tar.xz
serial: sh-sci: Correct SCIF type on R-Car for BRG
The "renesas,scif" compatible value is currently used for the SCIF variant in all Renesas SoCs of the R-Car family. However, the variant used in the R-Car family is not the common "SH-4(A)" variant, but a derivative with added "Baud Rate Generator for External Clock" (BRG), which is also present in sh7734. Use the family-specific SCIF compatible values for R-Car Gen1, Gen2, and Gen3 SoCs to differentiate. The "renesas,scif" compatible value can still be used as a common denominator for SCIF variants with the "SH-4(A)" register layout (i.e. ignoring the "Serial Extension Mode Register" (SCEMR) and the new BRG-specific registers). Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
-rw-r--r--drivers/tty/serial/sh-sci.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 5b8504bfd42e..a202e4e40b8a 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -2625,6 +2625,17 @@ static const struct of_device_id of_sci_match[] = {
.compatible = "renesas,scif-r7s72100",
.data = SCI_OF_DATA(PORT_SCIF, SCIx_SH2_SCIF_FIFODATA_REGTYPE),
},
+ /* Family-specific types */
+ {
+ .compatible = "renesas,rcar-gen1-scif",
+ .data = SCI_OF_DATA(PORT_SCIF, SCIx_SH4_SCIF_BRG_REGTYPE),
+ }, {
+ .compatible = "renesas,rcar-gen2-scif",
+ .data = SCI_OF_DATA(PORT_SCIF, SCIx_SH4_SCIF_BRG_REGTYPE),
+ }, {
+ .compatible = "renesas,rcar-gen3-scif",
+ .data = SCI_OF_DATA(PORT_SCIF, SCIx_SH4_SCIF_BRG_REGTYPE),
+ },
/* Generic types */
{
.compatible = "renesas,scif",