redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

soc: renesas: rcar-sysc: Add r8a774c0 support 

Add support for the RZ/G2E (R8A774C0) SoC power areas to the
R-Car SYSC driver.

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Biju Das <biju.das@bp.renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
hifive-unleashed-5.1
Fabrizio Castro 2018-09-10 15:41:27 +01:00 committed by Simon Horman
parent 39dc9a103b
commit f37d211c68
5 changed files with 78 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/soc/renesas/Kconfig
View File

@ -11,6 +11,7 @@ config SOC_RENESAS
select SYSC_R8A7745 if ARCH_R8A7745
select SYSC_R8A77470 if ARCH_R8A77470
select SYSC_R8A774A1 if ARCH_R8A774A1
select SYSC_R8A774C0 if ARCH_R8A774C0
select SYSC_R8A7779 if ARCH_R8A7779
select SYSC_R8A7790 if ARCH_R8A7790
select SYSC_R8A7791 if ARCH_R8A7791 || ARCH_R8A7793
@ -43,6 +44,10 @@ config SYSC_R8A774A1
bool "RZ/G2M System Controller support" if COMPILE_TEST
select SYSC_RCAR
config SYSC_R8A774C0
bool "RZ/G2E System Controller support" if COMPILE_TEST
select SYSC_RCAR
config SYSC_R8A7779
bool "R-Car H1 System Controller support" if COMPILE_TEST
select SYSC_RCAR

1
drivers/soc/renesas/Makefile
View File

@ -7,6 +7,7 @@ obj-$(CONFIG_SYSC_R8A7743) += r8a7743-sysc.o
obj-$(CONFIG_SYSC_R8A7745) += r8a7745-sysc.o
obj-$(CONFIG_SYSC_R8A77470) += r8a77470-sysc.o
obj-$(CONFIG_SYSC_R8A774A1) += r8a774a1-sysc.o
obj-$(CONFIG_SYSC_R8A774C0) += r8a774c0-sysc.o
obj-$(CONFIG_SYSC_R8A7779) += r8a7779-sysc.o
obj-$(CONFIG_SYSC_R8A7790) += r8a7790-sysc.o
obj-$(CONFIG_SYSC_R8A7791) += r8a7791-sysc.o

68
drivers/soc/renesas/r8a774c0-sysc.c 100644
View File

@ -0,0 +1,68 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Renesas RZ/G2E System Controller
* Copyright (C) 2018 Renesas Electronics Corp.
*
* Based on Renesas R-Car E3 System Controller
*/
#include <linux/bug.h>
#include <linux/kernel.h>
#include <linux/sys_soc.h>
#include <dt-bindings/power/r8a774c0-sysc.h>
#include "rcar-sysc.h"
static struct rcar_sysc_area r8a774c0_areas[] __initdata = {
{ "always-on", 0, 0, R8A774C0_PD_ALWAYS_ON, -1, PD_ALWAYS_ON },
{ "ca53-scu", 0x140, 0, R8A774C0_PD_CA53_SCU, R8A774C0_PD_ALWAYS_ON,
PD_SCU },
{ "ca53-cpu0", 0x200, 0, R8A774C0_PD_CA53_CPU0, R8A774C0_PD_CA53_SCU,
PD_CPU_NOCR },
{ "ca53-cpu1", 0x200, 1, R8A774C0_PD_CA53_CPU1, R8A774C0_PD_CA53_SCU,
PD_CPU_NOCR },
{ "a3vc", 0x380, 0, R8A774C0_PD_A3VC, R8A774C0_PD_ALWAYS_ON },
{ "a2vc1", 0x3c0, 1, R8A774C0_PD_A2VC1, R8A774C0_PD_A3VC },
{ "3dg-a", 0x100, 0, R8A774C0_PD_3DG_A, R8A774C0_PD_ALWAYS_ON },
{ "3dg-b", 0x100, 1, R8A774C0_PD_3DG_B, R8A774C0_PD_3DG_A },
};
static void __init rcar_sysc_fix_parent(struct rcar_sysc_area *areas,
unsigned int num_areas, u8 id,
int new_parent)
{
unsigned int i;
for (i = 0; i < num_areas; i++)
if (areas[i].isr_bit == id) {
areas[i].parent = new_parent;
return;
}
}
/* Fixups for RZ/G2E ES1.0 revision */
static const struct soc_device_attribute r8a774c0[] __initconst = {
{ .soc_id = "r8a774c0", .revision = "ES1.0" },
{ /* sentinel */ }
};
static int __init r8a774c0_sysc_init(void)
{
if (soc_device_match(r8a774c0)) {
rcar_sysc_fix_parent(r8a774c0_areas,
ARRAY_SIZE(r8a774c0_areas),
R8A774C0_PD_3DG_A, R8A774C0_PD_3DG_B);
rcar_sysc_fix_parent(r8a774c0_areas,
ARRAY_SIZE(r8a774c0_areas),
R8A774C0_PD_3DG_B, R8A774C0_PD_ALWAYS_ON);
}
return 0;
}
const struct rcar_sysc_info r8a774c0_sysc_info __initconst = {
.init = r8a774c0_sysc_init,
.areas = r8a774c0_areas,
.num_areas = ARRAY_SIZE(r8a774c0_areas),
};

3
drivers/soc/renesas/rcar-sysc.c
View File

@ -275,6 +275,9 @@ static const struct of_device_id rcar_sysc_matches[] __initconst = {
#ifdef CONFIG_SYSC_R8A774A1
{ .compatible = "renesas,r8a774a1-sysc", .data = &r8a774a1_sysc_info },
#endif
#ifdef CONFIG_SYSC_R8A774C0
{ .compatible = "renesas,r8a774c0-sysc", .data = &r8a774c0_sysc_info },
#endif
#ifdef CONFIG_SYSC_R8A7779
{ .compatible = "renesas,r8a7779-sysc", .data = &r8a7779_sysc_info },
#endif

1
drivers/soc/renesas/rcar-sysc.h
View File

@ -50,6 +50,7 @@ extern const struct rcar_sysc_info r8a7743_sysc_info;
extern const struct rcar_sysc_info r8a7745_sysc_info;
extern const struct rcar_sysc_info r8a77470_sysc_info;
extern const struct rcar_sysc_info r8a774a1_sysc_info;
extern const struct rcar_sysc_info r8a774c0_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;