On 09.05.19 20:08, Simon Goldschmidt wrote:
This adds a UCLASS_SYSRESET sysreset driver for socfgpa gen5.
Signed-off-by: Simon Goldschmidt <simon.k.r.goldschm...@gmail.com>
---
Changes in v3:
- moved socfpga gen5 sysreset driver to extra patch
Changes in v2: None
drivers/sysreset/Kconfig | 7 ++++
drivers/sysreset/Makefile | 1 +
drivers/sysreset/sysreset_socfpga.c | 56 +++++++++++++++++++++++++++++
3 files changed, 64 insertions(+)
create mode 100644 drivers/sysreset/sysreset_socfpga.c
I just noticed patman complained about new files regarding MAINTAINERS.
Should these new drivers be listed in the MAINTAINERS file under the
socfpga section? I noticed other platforms seem to do that but we don't.
How is this handled?
Regards,
Simon
diff --git a/drivers/sysreset/Kconfig b/drivers/sysreset/Kconfig
index 8ce3e2e207..066838c106 100644
--- a/drivers/sysreset/Kconfig
+++ b/drivers/sysreset/Kconfig
@@ -36,6 +36,13 @@ config SYSRESET_PSCI
Enable PSCI SYSTEM_RESET function call. To use this, PSCI firmware
must be running on your system.
+config SYSRESET_SOCFPGA
+ bool "Enable support for Intel SOCFPGA family"
+ depends on ARCH_SOCFPGA && (TARGET_SOCFPGA_GEN5 ||
TARGET_SOCFPGA_ARRIA10)
+ help
+ This enables the system reset driver support for Intel SOCFPGA SoCs
+ (Cyclone 5, Arria 5 and Arria 10).
+
config SYSRESET_TI_SCI
bool "TI System Control Interface (TI SCI) system reset driver"
depends on TI_SCI_PROTOCOL
diff --git a/drivers/sysreset/Makefile b/drivers/sysreset/Makefile
index b3728ac17f..0241b0132d 100644
--- a/drivers/sysreset/Makefile
+++ b/drivers/sysreset/Makefile
@@ -11,6 +11,7 @@ obj-$(CONFIG_SYSRESET_GPIO) += sysreset_gpio.o
obj-$(CONFIG_SYSRESET_MCP83XX) += sysreset_mpc83xx.o
obj-$(CONFIG_SYSRESET_MICROBLAZE) += sysreset_microblaze.o
obj-$(CONFIG_SYSRESET_PSCI) += sysreset_psci.o
+obj-$(CONFIG_SYSRESET_SOCFPGA) += sysreset_socfpga.o
obj-$(CONFIG_SYSRESET_TI_SCI) += sysreset-ti-sci.o
obj-$(CONFIG_SYSRESET_SYSCON) += sysreset_syscon.o
obj-$(CONFIG_SYSRESET_WATCHDOG) += sysreset_watchdog.o
diff --git a/drivers/sysreset/sysreset_socfpga.c
b/drivers/sysreset/sysreset_socfpga.c
new file mode 100644
index 0000000000..fc1ba72d5b
--- /dev/null
+++ b/drivers/sysreset/sysreset_socfpga.c
@@ -0,0 +1,56 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2019 Pepperl+Fuchs
+ * Simon Goldschmidt <simon.k.r.goldschm...@gmail.com>
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <errno.h>
+#include <sysreset.h>
+#include <asm/io.h>
+#include <asm/arch/reset_manager.h>
+
+struct socfpga_sysreset_data {
+ struct socfpga_reset_manager *rstmgr_base;
+};
+
+static int socfpga_sysreset_request(struct udevice *dev,
+ enum sysreset_t type)
+{
+ struct socfpga_sysreset_data *data = dev_get_priv(dev);
+
+ switch (type) {
+ case SYSRESET_WARM:
+ writel(1 << RSTMGR_CTRL_SWWARMRSTREQ_LSB,
+ &data->rstmgr_base->ctrl);
+ break;
+ case SYSRESET_COLD:
+ writel(1 << RSTMGR_CTRL_SWCOLDRSTREQ_LSB,
+ &data->rstmgr_base->ctrl);
+ break;
+ default:
+ return -EPROTONOSUPPORT;
+ }
+ return -EINPROGRESS;
+}
+
+static int socfpga_sysreset_probe(struct udevice *dev)
+{
+ struct socfpga_sysreset_data *data = dev_get_priv(dev);
+
+ data->rstmgr_base = devfdt_get_addr_ptr(dev);
+ return 0;
+}
+
+static struct sysreset_ops socfpga_sysreset = {
+ .request = socfpga_sysreset_request,
+};
+
+U_BOOT_DRIVER(sysreset_socfpga) = {
+ .id = UCLASS_SYSRESET,
+ .name = "socfpga_sysreset",
+ .priv_auto_alloc_size = sizeof(struct socfpga_sysreset_data),
+ .ops = &socfpga_sysreset,
+ .probe = socfpga_sysreset_probe,
+};
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