Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-01 17:51:43 +00:00
Code Issues Packages Projects Releases Wiki Activity

ARM: shmobile: r8a7778 SCIF support

Browse Source 
Add SCIF serial port support to the r8a7778 SoC by
adding platform devices together with clock bindings.
DT device description is excluded at this point since
such bindings are still under development.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
This commit is contained in:
Kuninori Morimoto 2013-03-21 03:02:38 -07:00 committed by Simon Horman
parent ccb7cc749f
commit db331fc8fc
2 changed files with 39 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
arch/arm/mach-shmobile/clock-r8a7778.c
View File

@ -58,16 +58,29 @@ static struct clk *main_clks[] = {
};
enum {
MSTP026, MSTP025, MSTP024, MSTP023, MSTP022, MSTP021,
MSTP016, MSTP015,
MSTP_NR };
static struct clk mstp_clks[MSTP_NR] = {
[MSTP026] = SH_CLK_MSTP32(&clkp, MSTPCR0, 26, 0), /* SCIF0 */
[MSTP025] = SH_CLK_MSTP32(&clkp, MSTPCR0, 25, 0), /* SCIF1 */
[MSTP024] = SH_CLK_MSTP32(&clkp, MSTPCR0, 24, 0), /* SCIF2 */
[MSTP023] = SH_CLK_MSTP32(&clkp, MSTPCR0, 23, 0), /* SCIF3 */
[MSTP022] = SH_CLK_MSTP32(&clkp, MSTPCR0, 22, 0), /* SCIF4 */
[MSTP021] = SH_CLK_MSTP32(&clkp, MSTPCR0, 21, 0), /* SCIF5 */
[MSTP016] = SH_CLK_MSTP32(&clkp, MSTPCR0, 16, 0), /* TMU0 */
[MSTP015] = SH_CLK_MSTP32(&clkp, MSTPCR0, 15, 0), /* TMU1 */
};
static struct clk_lookup lookups[] = {
/* MSTP32 clocks */
CLKDEV_DEV_ID("sh-sci.0", &mstp_clks[MSTP026]), /* SCIF0 */
CLKDEV_DEV_ID("sh-sci.1", &mstp_clks[MSTP025]), /* SCIF1 */
CLKDEV_DEV_ID("sh-sci.2", &mstp_clks[MSTP024]), /* SCIF2 */
CLKDEV_DEV_ID("sh-sci.3", &mstp_clks[MSTP023]), /* SCIF3 */
CLKDEV_DEV_ID("sh-sci.4", &mstp_clks[MSTP022]), /* SCIF4 */
CLKDEV_DEV_ID("sh-sci.5", &mstp_clks[MSTP021]), /* SCIF6 */
CLKDEV_DEV_ID("sh_tmu.0", &mstp_clks[MSTP016]), /* TMU00 */
CLKDEV_DEV_ID("sh_tmu.1", &mstp_clks[MSTP015]), /* TMU01 */
};

26
arch/arm/mach-shmobile/setup-r8a7778.c
View File

@ -25,6 +25,7 @@
#include <linux/of_platform.h>
#include <linux/platform_device.h>
#include <linux/irqchip.h>
#include <linux/serial_sci.h>
#include <linux/sh_timer.h>
#include <mach/irqs.h>
#include <mach/r8a7778.h>
@ -32,6 +33,26 @@
#include <asm/mach/arch.h>
#include <asm/hardware/cache-l2x0.h>
/* SCIF */
#define SCIF_INFO(baseaddr, irq) \
{ \
.mapbase = baseaddr, \
.flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP, \
.scscr = SCSCR_RE | SCSCR_TE | SCSCR_CKE1, \
.scbrr_algo_id = SCBRR_ALGO_2, \
.type = PORT_SCIF, \
.irqs = SCIx_IRQ_MUXED(irq), \
}
static struct plat_sci_port scif_platform_data[] = {
SCIF_INFO(0xffe40000, gic_iid(0x66)),
SCIF_INFO(0xffe41000, gic_iid(0x67)),
SCIF_INFO(0xffe42000, gic_iid(0x68)),
SCIF_INFO(0xffe43000, gic_iid(0x69)),
SCIF_INFO(0xffe44000, gic_iid(0x6a)),
SCIF_INFO(0xffe45000, gic_iid(0x6b)),
};
/* TMU */
static struct resource sh_tmu0_resources[] = {
DEFINE_RES_MEM(0xffd80008, 12),
@ -88,6 +109,11 @@ void __init r8a7778_add_standard_devices(void)
}
#endif
for (i = 0; i < ARRAY_SIZE(scif_platform_data); i++)
platform_device_register_data(&platform_bus, "sh-sci", i,
&scif_platform_data[i],
sizeof(struct plat_sci_port));
for (i = 0; i < ARRAY_SIZE(platform_devinfo); i++)
platform_device_register_full(&platform_devinfo[i]);
}