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linux-next/drivers/soc/renesas/r8a77965-sysc.c
Geert Uytterhoeven fd73351943 soc: renesas: r8a77965-sysc: Fix power request conflicts
Describe the location and contents of the SYSCEXTMASK register on R-Car
M3-N, to prevent conflicts between internal and external power requests.

Based on a patch in the BSP by Dien Pham <dien.pham.ry@renesas.com>.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Link: https://lore.kernel.org/r/20190828113618.6672-5-geert+renesas@glider.be
2019-10-01 10:29:49 +02:00

40 lines
1.3 KiB
C

// SPDX-License-Identifier: GPL-2.0
/*
* Renesas R-Car M3-N System Controller
* Copyright (C) 2018 Jacopo Mondi <jacopo+renesas@jmondi.org>
*
* Based on Renesas R-Car M3-W System Controller
* Copyright (C) 2016 Glider bvba
*/
#include <linux/bits.h>
#include <linux/bug.h>
#include <linux/kernel.h>
#include <dt-bindings/power/r8a77965-sysc.h>
#include "rcar-sysc.h"
static const struct rcar_sysc_area r8a77965_areas[] __initconst = {
{ "always-on", 0, 0, R8A77965_PD_ALWAYS_ON, -1, PD_ALWAYS_ON },
{ "ca57-scu", 0x1c0, 0, R8A77965_PD_CA57_SCU, R8A77965_PD_ALWAYS_ON,
PD_SCU },
{ "ca57-cpu0", 0x80, 0, R8A77965_PD_CA57_CPU0, R8A77965_PD_CA57_SCU,
PD_CPU_NOCR },
{ "ca57-cpu1", 0x80, 1, R8A77965_PD_CA57_CPU1, R8A77965_PD_CA57_SCU,
PD_CPU_NOCR },
{ "cr7", 0x240, 0, R8A77965_PD_CR7, R8A77965_PD_ALWAYS_ON },
{ "a3vc", 0x380, 0, R8A77965_PD_A3VC, R8A77965_PD_ALWAYS_ON },
{ "a3vp", 0x340, 0, R8A77965_PD_A3VP, R8A77965_PD_ALWAYS_ON },
{ "a2vc1", 0x3c0, 1, R8A77965_PD_A2VC1, R8A77965_PD_A3VC },
{ "3dg-a", 0x100, 0, R8A77965_PD_3DG_A, R8A77965_PD_ALWAYS_ON },
{ "3dg-b", 0x100, 1, R8A77965_PD_3DG_B, R8A77965_PD_3DG_A },
};
const struct rcar_sysc_info r8a77965_sysc_info __initconst = {
.areas = r8a77965_areas,
.num_areas = ARRAY_SIZE(r8a77965_areas),
.extmask_offs = 0x2f8,
.extmask_val = BIT(0),
};