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| author | Magnus Damm <damm@opensource.se> | 2013-09-19 05:11:20 +0900 |
|---|---|---|
| committer | Simon Horman <horms+renesas@verge.net.au> | 2013-10-08 09:53:00 +0900 |
| commit | f6ca6f11c921b227e33c5e91084be5ef30c32771 (patch) | |
| tree | a6bc0b2e5885fa8cf396ce3c6fe098bc2e614e14 | |
| parent | e3da5b36d48a8e55d1549da016e4c38ff3c0d0fc (diff) | |
| download | linux-f6ca6f11c921b227e33c5e91084be5ef30c32771.tar.gz linux-f6ca6f11c921b227e33c5e91084be5ef30c32771.tar.bz2 linux-f6ca6f11c921b227e33c5e91084be5ef30c32771.zip | |
ARM: shmobile: r7s72100 SCIF support
Add SCIF serial port support to the r7s72100 SoC by
adding platform devices for SCIF0 -> SCIF7 together with
clock bindings. DT device description is excluded at
this point since such bindings are still under
development.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
| -rw-r--r-- | arch/arm/mach-shmobile/clock-r7s72100.c | 8 | ||||
| -rw-r--r-- | arch/arm/mach-shmobile/include/mach/r7s72100.h | 1 | ||||
| -rw-r--r-- | arch/arm/mach-shmobile/setup-r7s72100.c | 45 |
3 files changed, 54 insertions, 0 deletions
diff --git a/arch/arm/mach-shmobile/clock-r7s72100.c b/arch/arm/mach-shmobile/clock-r7s72100.c index 1e71094f809d..4aba20ca127e 100644 --- a/arch/arm/mach-shmobile/clock-r7s72100.c +++ b/arch/arm/mach-shmobile/clock-r7s72100.c @@ -170,6 +170,14 @@ static struct clk_lookup lookups[] = { CLKDEV_CON_ID("cpu_clk", &div4_clks[DIV4_I]), /* MSTP clocks */ + CLKDEV_ICK_ID("sci_fck", "sh-sci.0", &mstp_clks[MSTP47]), + CLKDEV_ICK_ID("sci_fck", "sh-sci.1", &mstp_clks[MSTP46]), + CLKDEV_ICK_ID("sci_fck", "sh-sci.2", &mstp_clks[MSTP45]), + CLKDEV_ICK_ID("sci_fck", "sh-sci.3", &mstp_clks[MSTP44]), + CLKDEV_ICK_ID("sci_fck", "sh-sci.4", &mstp_clks[MSTP43]), + CLKDEV_ICK_ID("sci_fck", "sh-sci.5", &mstp_clks[MSTP42]), + CLKDEV_ICK_ID("sci_fck", "sh-sci.6", &mstp_clks[MSTP41]), + CLKDEV_ICK_ID("sci_fck", "sh-sci.7", &mstp_clks[MSTP40]), }; void __init r7s72100_clock_init(void) diff --git a/arch/arm/mach-shmobile/include/mach/r7s72100.h b/arch/arm/mach-shmobile/include/mach/r7s72100.h index f78062e98bd4..5f34b20ecd4a 100644 --- a/arch/arm/mach-shmobile/include/mach/r7s72100.h +++ b/arch/arm/mach-shmobile/include/mach/r7s72100.h @@ -1,6 +1,7 @@ #ifndef __ASM_R7S72100_H__ #define __ASM_R7S72100_H__ +void r7s72100_add_dt_devices(void); void r7s72100_clock_init(void); void r7s72100_init_early(void); diff --git a/arch/arm/mach-shmobile/setup-r7s72100.c b/arch/arm/mach-shmobile/setup-r7s72100.c index c1aded0984a8..d4eb509a1c87 100644 --- a/arch/arm/mach-shmobile/setup-r7s72100.c +++ b/arch/arm/mach-shmobile/setup-r7s72100.c @@ -21,10 +21,55 @@ #include <linux/irq.h> #include <linux/kernel.h> #include <linux/of_platform.h> +#include <linux/serial_sci.h> #include <mach/common.h> +#include <mach/irqs.h> #include <mach/r7s72100.h> #include <asm/mach/arch.h> +#define SCIF_DATA(index, baseaddr, irq) \ +[index] = { \ + .type = PORT_SCIF, \ + .regtype = SCIx_SH2_SCIF_FIFODATA_REGTYPE, \ + .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP, \ + .scbrr_algo_id = SCBRR_ALGO_2, \ + .scscr = SCSCR_RIE | SCSCR_TIE | SCSCR_RE | SCSCR_TE | \ + SCSCR_REIE, \ + .mapbase = baseaddr, \ + .irqs = { irq + 1, irq + 2, irq + 3, irq }, \ +} + +enum { SCIF0, SCIF1, SCIF2, SCIF3, SCIF4, SCIF5, SCIF6, SCIF7 }; + +static const struct plat_sci_port scif[] __initconst = { + SCIF_DATA(SCIF0, 0xe8007000, gic_iid(221)), /* SCIF0 */ + SCIF_DATA(SCIF1, 0xe8007800, gic_iid(225)), /* SCIF1 */ + SCIF_DATA(SCIF2, 0xe8008000, gic_iid(229)), /* SCIF2 */ + SCIF_DATA(SCIF3, 0xe8008800, gic_iid(233)), /* SCIF3 */ + SCIF_DATA(SCIF4, 0xe8009000, gic_iid(237)), /* SCIF4 */ + SCIF_DATA(SCIF5, 0xe8009800, gic_iid(241)), /* SCIF5 */ + SCIF_DATA(SCIF6, 0xe800a000, gic_iid(245)), /* SCIF6 */ + SCIF_DATA(SCIF7, 0xe800a800, gic_iid(249)), /* SCIF7 */ +}; + +static inline void r7s72100_register_scif(int idx) +{ + platform_device_register_data(&platform_bus, "sh-sci", idx, &scif[idx], + sizeof(struct plat_sci_port)); +} + +void __init r7s72100_add_dt_devices(void) +{ + r7s72100_register_scif(SCIF0); + r7s72100_register_scif(SCIF1); + r7s72100_register_scif(SCIF2); + r7s72100_register_scif(SCIF3); + r7s72100_register_scif(SCIF4); + r7s72100_register_scif(SCIF5); + r7s72100_register_scif(SCIF6); + r7s72100_register_scif(SCIF7); +} + void __init r7s72100_init_early(void) { shmobile_setup_delay(400, 1, 3); /* Cortex-A9 @ 400MHz */ |