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author | Tom Rini <trini@konsulko.com> | 2015-09-03 18:57:09 (GMT) |
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committer | Tom Rini <trini@konsulko.com> | 2015-09-03 18:57:09 (GMT) |
commit | c9feb427aba860ebc79f9851a1bb49cc456a2d48 (patch) | |
tree | 6a80def1806386e2854d57f740264c6744d96e1d /arch/arm/mach-rockchip/rk3288/reset_rk3288.c | |
parent | da9d8580ff9ce17452ef931072e5799a9df8807f (diff) | |
parent | f2acc55e3d28e96a6fcc060a7081eb4e2ad96350 (diff) | |
download | u-boot-fsl-qoriq-c9feb427aba860ebc79f9851a1bb49cc456a2d48.tar.xz |
Merge git://git.denx.de/u-boot-rockchip
Diffstat (limited to 'arch/arm/mach-rockchip/rk3288/reset_rk3288.c')
-rw-r--r-- | arch/arm/mach-rockchip/rk3288/reset_rk3288.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/arch/arm/mach-rockchip/rk3288/reset_rk3288.c b/arch/arm/mach-rockchip/rk3288/reset_rk3288.c new file mode 100644 index 0000000..7affd11 --- /dev/null +++ b/arch/arm/mach-rockchip/rk3288/reset_rk3288.c @@ -0,0 +1,47 @@ +/* + * (C) Copyright 2015 Google, Inc + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#include <common.h> +#include <dm.h> +#include <errno.h> +#include <reset.h> +#include <asm/io.h> +#include <asm/arch/clock.h> +#include <asm/arch/cru_rk3288.h> +#include <asm/arch/hardware.h> +#include <linux/err.h> + +int rk3288_reset_request(struct udevice *dev, enum reset_t type) +{ + struct rk3288_cru *cru = rockchip_get_cru(); + + if (IS_ERR(cru)) + return PTR_ERR(cru); + switch (type) { + case RESET_WARM: + writel(RK_CLRBITS(0xffff), &cru->cru_mode_con); + writel(0xeca8, &cru->cru_glb_srst_snd_value); + break; + case RESET_COLD: + writel(RK_CLRBITS(0xffff), &cru->cru_mode_con); + writel(0xfdb9, &cru->cru_glb_srst_fst_value); + break; + default: + return -EPROTONOSUPPORT; + } + + return -EINPROGRESS; +} + +static struct reset_ops rk3288_reset = { + .request = rk3288_reset_request, +}; + +U_BOOT_DRIVER(reset_rk3288) = { + .name = "rk3288_reset", + .id = UCLASS_RESET, + .ops = &rk3288_reset, +}; |