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Commit db331fc8 authored by Kuninori Morimoto's avatar Kuninori Morimoto Committed by Simon Horman
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ARM: shmobile: r8a7778 SCIF support 



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: default avatarKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: default avatarMagnus Damm <damm@opensource.se>
Signed-off-by: default avatarSimon Horman <horms+renesas@verge.net.au>
parent ccb7cc74

arch/arm/mach-shmobile/clock-r8a7778.c

+13 −0
Original line number Original line Diff line number Diff line
@@ -58,16 +58,29 @@ static struct clk *main_clks[] = { 
};

};





enum {

enum {

	MSTP026, MSTP025, MSTP024, MSTP023, MSTP022, MSTP021,

	MSTP016, MSTP015,

	MSTP016, MSTP015,

	MSTP_NR };

	MSTP_NR };





static struct clk mstp_clks[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 */

	[MSTP016] = SH_CLK_MSTP32(&clkp, MSTPCR0, 16, 0), /* TMU0 */

	[MSTP015] = SH_CLK_MSTP32(&clkp, MSTPCR0, 15, 0), /* TMU1 */

	[MSTP015] = SH_CLK_MSTP32(&clkp, MSTPCR0, 15, 0), /* TMU1 */

};

};





static struct clk_lookup lookups[] = {

static struct clk_lookup lookups[] = {

	/* MSTP32 clocks */

	/* 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.0", &mstp_clks[MSTP016]), /* TMU00 */

	CLKDEV_DEV_ID("sh_tmu.1", &mstp_clks[MSTP015]), /* TMU01 */

	CLKDEV_DEV_ID("sh_tmu.1", &mstp_clks[MSTP015]), /* TMU01 */

};

};

arch/arm/mach-shmobile/setup-r8a7778.c

+26 −0
Original line number Original line Diff line number Diff line
@@ -25,6 +25,7 @@ 
#include <linux/of_platform.h>

#include <linux/of_platform.h>

#include <linux/platform_device.h>

#include <linux/platform_device.h>

#include <linux/irqchip.h>

#include <linux/irqchip.h>

#include <linux/serial_sci.h>

#include <linux/sh_timer.h>

#include <linux/sh_timer.h>

#include <mach/irqs.h>

#include <mach/irqs.h>

#include <mach/r8a7778.h>

#include <mach/r8a7778.h>
@@ -32,6 +33,26 @@ 
#include <asm/mach/arch.h>

#include <asm/mach/arch.h>

#include <asm/hardware/cache-l2x0.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 */

/* TMU */

static struct resource sh_tmu0_resources[] = {

static struct resource sh_tmu0_resources[] = {

	DEFINE_RES_MEM(0xffd80008, 12),

	DEFINE_RES_MEM(0xffd80008, 12),
@@ -88,6 +109,11 @@ void __init r8a7778_add_standard_devices(void) 
	}

	}

#endif

#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++)

	for (i = 0; i < ARRAY_SIZE(platform_devinfo); i++)

		platform_device_register_full(&platform_devinfo[i]);

		platform_device_register_full(&platform_devinfo[i]);

}

}