diff options
Diffstat (limited to 'drivers/sysreset/sysreset_snapdragon.c')
-rw-r--r-- | drivers/sysreset/sysreset_snapdragon.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/drivers/sysreset/sysreset_snapdragon.c b/drivers/sysreset/sysreset_snapdragon.c new file mode 100644 index 00000000000..a6cabfb8b01 --- /dev/null +++ b/drivers/sysreset/sysreset_snapdragon.c @@ -0,0 +1,40 @@ +/* + * Qualcomm APQ8016 reset controller driver + * + * (C) Copyright 2015 Mateusz Kulikowski <mateusz.kulikowski@gmail.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <dm.h> +#include <errno.h> +#include <sysreset.h> +#include <asm/io.h> + +DECLARE_GLOBAL_DATA_PTR; + +static int msm_sysreset_request(struct udevice *dev, enum sysreset_t type) +{ + phys_addr_t addr = dev_get_addr(dev); + if (!addr) + return -EINVAL; + writel(0, addr); + return -EINPROGRESS; +} + +static struct sysreset_ops msm_sysreset_ops = { + .request = msm_sysreset_request, +}; + +static const struct udevice_id msm_sysreset_ids[] = { + { .compatible = "qcom,pshold" }, + { } +}; + +U_BOOT_DRIVER(msm_reset) = { + .name = "msm_sysreset", + .id = UCLASS_SYSRESET, + .of_match = msm_sysreset_ids, + .ops = &msm_sysreset_ops, +}; |