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| author | Simon Horman <horms+renesas@verge.net.au> | 2014-04-24 15:54:44 +0900 |
|---|---|---|
| committer | Stephane Desneux <stephane.desneux@open.eurogiciel.org> | 2015-02-04 11:14:30 +0100 |
| commit | 54b84a85f376d56ed109a83259e08f7f822f8549 (patch) | |
| tree | d24aa0b4aada2600d5261ad0e180933857ad987b | |
| parent | c7e26b6adac7773ca2b569150ed8c7f0560477aa (diff) | |
| download | linux-stable-54b84a85f376d56ed109a83259e08f7f822f8549.tar.gz linux-stable-54b84a85f376d56ed109a83259e08f7f822f8549.tar.bz2 linux-stable-54b84a85f376d56ed109a83259e08f7f822f8549.zip | |
serial: sh-sci: Add device tree support for r8a7779
According to the platform data for the legacy-C initialisation of sh-sci
for the r8a7779 SoC and my own testing the SCIx_SH4_SCIF_REGTYPE bit of
scscr needs to be set.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit fcbee4d49f30eb0eaa83a62e6a3cab5a892ed93f)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
| -rw-r--r-- | Documentation/devicetree/bindings/serial/renesas,sci-serial.txt | 1 | ||||
| -rw-r--r-- | drivers/tty/serial/sh-sci.c | 10 |
2 files changed, 10 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt b/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt index 53e6c175db6c..bba86de1a094 100644 --- a/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt +++ b/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt @@ -12,6 +12,7 @@ Required properties: - "renesas,scifa-r8a7791" for R8A7791 (R-Car M2) SCIFA compatible UART. - "renesas,scifb-r8a7791" for R8A7791 (R-Car M2) SCIFB compatible UART. - "renesas,hscif-r8a7791" for R8A7791 (R-Car M2) HSCIF compatible UART. + - "renesas,scif-r8a7779" for R8A7779 (R-Car H1) SCIF compatible UART. - "renesas,scif" for generic SCIF compatible UART. - "renesas,scifa" for generic SCIFA compatible UART. - "renesas,scifb" for generic SCIFB compatible UART. diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c index 88236da0ddf7..3b5d2f679946 100644 --- a/drivers/tty/serial/sh-sci.c +++ b/drivers/tty/serial/sh-sci.c @@ -2419,6 +2419,7 @@ static int sci_remove(struct platform_device *dev) struct sci_port_info { unsigned int type; unsigned int regtype; + unsigned int scscr_extra; }; static const struct of_device_id of_sci_match[] = { @@ -2429,6 +2430,13 @@ static const struct of_device_id of_sci_match[] = { .regtype = SCIx_SH4_SCIF_REGTYPE, }, }, { + .compatible = "renesas,scif-r8a7779", + .data = (void *)&(const struct sci_port_info) { + .type = PORT_SCIF, + .regtype = SCIx_SH4_SCIF_REGTYPE, + .scscr_extra = SCSCR_CKE1, + }, + }, { .compatible = "renesas,scifa", .data = &(const struct sci_port_info) { .type = PORT_SCIFA, @@ -2488,7 +2496,7 @@ sci_parse_dt(struct platform_device *pdev, unsigned int *dev_id) p->flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF; p->type = info->type; p->regtype = info->regtype; - p->scscr = SCSCR_RE | SCSCR_TE; + p->scscr = SCSCR_RE | SCSCR_TE | info->scscr_extra; return p; } |