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soc: renesas: rcar-sysc: add R8A7743 support 

Add support for RZ/G1M (R8A7743) SoC power areas to the R-Car SYSC driver.

Based on the original (and large) patch by Dmitry Shifrin
<dmitry.shifrin@cogentembedded.com>.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
This commit is contained in:
Sergei Shtylyov 2016-10-05 14:35:01 -07:00 committed by Simon Horman
parent 538321bd97
commit 603311ba97
5 changed files with 41 additions and 3 deletions
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7
Documentation/devicetree/bindings/power/renesas,rcar-sysc.txt
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@ -1,12 +1,13 @@
DT bindings for the Renesas R-Car System Controller
DT bindings for the Renesas R-Car (RZ/G) System Controller
== System Controller Node ==
The R-Car System Controller provides power management for the CPU cores and
various coprocessors.
The R-Car (RZ/G) System Controller provides power management for the CPU cores
and various coprocessors.
Required properties:
- compatible: Must contain exactly one of the following:
- "renesas,r8a7743-sysc" (RZ/G1M)
- "renesas,r8a7779-sysc" (R-Car H1)
- "renesas,r8a7790-sysc" (R-Car H2)
- "renesas,r8a7791-sysc" (R-Car M2-W)

1
drivers/soc/renesas/Makefile
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@ -1,3 +1,4 @@
obj-$(CONFIG_ARCH_R8A7743) += rcar-sysc.o r8a7743-sysc.o
obj-$(CONFIG_ARCH_R8A7779) += rcar-sysc.o r8a7779-sysc.o
obj-$(CONFIG_ARCH_R8A7790) += rcar-sysc.o r8a7790-sysc.o
obj-$(CONFIG_ARCH_R8A7791) += rcar-sysc.o r8a7791-sysc.o

32
drivers/soc/renesas/r8a7743-sysc.c Normal file
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@ -0,0 +1,32 @@
/*
* Renesas RZ/G1M System Controller
*
* Copyright (C) 2016 Cogent Embedded Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation; of the License.
*/
#include <linux/bug.h>
#include <linux/kernel.h>
#include <dt-bindings/power/r8a7743-sysc.h>
#include "rcar-sysc.h"
static const struct rcar_sysc_area r8a7743_areas[] __initconst = {
{ "always-on", 0, 0, R8A7743_PD_ALWAYS_ON, -1, PD_ALWAYS_ON },
{ "ca15-scu", 0x180, 0, R8A7743_PD_CA15_SCU, R8A7743_PD_ALWAYS_ON,
PD_SCU },
{ "ca15-cpu0", 0x40, 0, R8A7743_PD_CA15_CPU0, R8A7743_PD_CA15_SCU,
PD_CPU_NOCR },
{ "ca15-cpu1", 0x40, 1, R8A7743_PD_CA15_CPU1, R8A7743_PD_CA15_SCU,
PD_CPU_NOCR },
{ "sgx", 0xc0, 0, R8A7743_PD_SGX, R8A7743_PD_ALWAYS_ON },
};
const struct rcar_sysc_info r8a7743_sysc_info __initconst = {
.areas = r8a7743_areas,
.num_areas = ARRAY_SIZE(r8a7743_areas),
};

3
drivers/soc/renesas/rcar-sysc.c
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@ -275,6 +275,9 @@ finalize:
}
static const struct of_device_id rcar_sysc_matches[] = {
#ifdef CONFIG_ARCH_R8A7743
{ .compatible = "renesas,r8a7743-sysc", .data = &r8a7743_sysc_info },
#endif
#ifdef CONFIG_ARCH_R8A7779
{ .compatible = "renesas,r8a7779-sysc", .data = &r8a7779_sysc_info },
#endif

1
drivers/soc/renesas/rcar-sysc.h
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@ -50,6 +50,7 @@ struct rcar_sysc_info {
unsigned int num_areas;
};
extern const struct rcar_sysc_info r8a7743_sysc_info;
extern const struct rcar_sysc_info r8a7779_sysc_info;
extern const struct rcar_sysc_info r8a7790_sysc_info;
extern const struct rcar_sysc_info r8a7791_sysc_info;