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sysreset: Add Octeon sysreset driver

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This patch adds a UCLASS_SYSRESET sysreset driver for the Octeon SoC
family.

Signed-off-by: Stefan Roese <sr@denx.de>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
This commit is contained in:
Stefan Roese 2020-06-30 12:08:55 +02:00 committed by Daniel Schwierzeck
parent de34a61642
commit 59aea37abf
3 changed files with 60 additions and 0 deletions
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7
drivers/sysreset/Kconfig
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@ -57,6 +57,13 @@ config SYSRESET_MICROBLAZE
help
This is soft reset on Microblaze which does jump to 0x0 address.
config SYSRESET_OCTEON
bool "Enable support for Marvell Octeon SoC family"
depends on ARCH_OCTEON
help
This enables the system reset driver support for Marvell Octeon
SoCs.
config SYSRESET_PSCI
bool "Enable support for PSCI System Reset"
depends on ARM_PSCI_FW

1
drivers/sysreset/Makefile
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@ -10,6 +10,7 @@ obj-$(CONFIG_SANDBOX) += sysreset_sandbox.o
obj-$(CONFIG_SYSRESET_GPIO) += sysreset_gpio.o
obj-$(CONFIG_SYSRESET_MPC83XX) += sysreset_mpc83xx.o
obj-$(CONFIG_SYSRESET_MICROBLAZE) += sysreset_microblaze.o
obj-$(CONFIG_SYSRESET_OCTEON) += sysreset_octeon.o
obj-$(CONFIG_SYSRESET_PSCI) += sysreset_psci.o
obj-$(CONFIG_SYSRESET_SOCFPGA) += sysreset_socfpga.o
obj-$(CONFIG_SYSRESET_SOCFPGA_S10) += sysreset_socfpga_s10.o

52
drivers/sysreset/sysreset_octeon.c Normal file
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@ -0,0 +1,52 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2020 Stefan Roese <sr@denx.de>
*/
#include <common.h>
#include <dm.h>
#include <errno.h>
#include <sysreset.h>
#include <asm/io.h>
#define RST_SOFT_RST 0x0080
struct octeon_sysreset_data {
void __iomem *base;
};
static int octeon_sysreset_request(struct udevice *dev, enum sysreset_t type)
{
struct octeon_sysreset_data *data = dev_get_priv(dev);
writeq(1, data->base + RST_SOFT_RST);
return -EINPROGRESS;
}
static int octeon_sysreset_probe(struct udevice *dev)
{
struct octeon_sysreset_data *data = dev_get_priv(dev);
data->base = dev_remap_addr(dev);
return 0;
}
static struct sysreset_ops octeon_sysreset = {
.request = octeon_sysreset_request,
};
static const struct udevice_id octeon_sysreset_ids[] = {
{ .compatible = "mrvl,cn7xxx-rst" },
{ }
};
U_BOOT_DRIVER(sysreset_octeon) = {
.id = UCLASS_SYSRESET,
.name = "octeon_sysreset",
.priv_auto_alloc_size = sizeof(struct octeon_sysreset_data),
.ops = &octeon_sysreset,
.probe = octeon_sysreset_probe,
.of_match = octeon_sysreset_ids,
};