diff options
author | Kever Yang <kever.yang@rock-chips.com> | 2017-11-03 10:16:12 +0300 |
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committer | Philipp Tomsich <philipp.tomsich@theobroma-systems.com> | 2017-11-22 01:57:23 +0300 |
commit | 6ba54058ed6e5b5d7fb14b99a0d9f803ef83b1d3 (patch) | |
tree | a5fe9b85d82a1e413c8ce95cfe1466438badce2a /drivers/sysreset/sysreset_rockchip.c | |
parent | 95d363cc30ad1e92c01b577b046856c7c608f4d6 (diff) | |
download | u-boot-6ba54058ed6e5b5d7fb14b99a0d9f803ef83b1d3.tar.xz |
rockchip: sysreset: merge into one common driver
Use a common driver for all Rockchip SOC instead of one for each SoC.
Use driver_data for reg offset.
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Diffstat (limited to 'drivers/sysreset/sysreset_rockchip.c')
-rw-r--r-- | drivers/sysreset/sysreset_rockchip.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/drivers/sysreset/sysreset_rockchip.c b/drivers/sysreset/sysreset_rockchip.c new file mode 100644 index 0000000000..894975f3fe --- /dev/null +++ b/drivers/sysreset/sysreset_rockchip.c @@ -0,0 +1,47 @@ +/* + * (C) Copyright 2017 Rockchip Electronics Co., Ltd + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#include <common.h> +#include <dm.h> +#include <errno.h> +#include <sysreset.h> +#include <asm/io.h> +#include <asm/arch/clock.h> +#include <asm/arch/cru_rk3328.h> +#include <asm/arch/hardware.h> +#include <linux/err.h> + +int rockchip_sysreset_request(struct udevice *dev, enum sysreset_t type) +{ + struct sysreset_reg *offset = dev_get_priv(dev); + unsigned long cru_base = (unsigned long)rockchip_get_cru(); + + if (IS_ERR_VALUE(cru_base)) + return (int)cru_base; + + switch (type) { + case SYSRESET_WARM: + writel(0xeca8, cru_base + offset->glb_srst_snd_value); + break; + case SYSRESET_COLD: + writel(0xfdb9, cru_base + offset->glb_srst_fst_value); + break; + default: + return -EPROTONOSUPPORT; + } + + return -EINPROGRESS; +} + +static struct sysreset_ops rockchip_sysreset = { + .request = rockchip_sysreset_request, +}; + +U_BOOT_DRIVER(sysreset_rockchip) = { + .name = "rockchip_sysreset", + .id = UCLASS_SYSRESET, + .ops = &rockchip_sysreset, +}; |