mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
91f5f8b73c
This patch adds the bulk reset API tests for the sandbox test suite. Unlike the main test, it also check the "other" reset signal using the bulk API and checks if the resets are correctly asserted/deasserted. To allow the bulk API to work, and avoid changing the DT, the number of resets of the sandbox reset controller has been bumped to 101 for the "other" reset line to be valid. Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Simon Glass <sjg@chromium.org>
109 lines
2.1 KiB
C
109 lines
2.1 KiB
C
/*
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* Copyright (c) 2016, NVIDIA CORPORATION.
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*
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* SPDX-License-Identifier: GPL-2.0
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*/
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#include <common.h>
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#include <dm.h>
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#include <reset-uclass.h>
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#include <asm/io.h>
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#include <asm/reset.h>
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#define SANDBOX_RESET_SIGNALS 101
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struct sandbox_reset_signal {
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bool asserted;
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};
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struct sandbox_reset {
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struct sandbox_reset_signal signals[SANDBOX_RESET_SIGNALS];
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};
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static int sandbox_reset_request(struct reset_ctl *reset_ctl)
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{
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debug("%s(reset_ctl=%p)\n", __func__, reset_ctl);
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if (reset_ctl->id >= SANDBOX_RESET_SIGNALS)
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return -EINVAL;
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return 0;
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}
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static int sandbox_reset_free(struct reset_ctl *reset_ctl)
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{
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debug("%s(reset_ctl=%p)\n", __func__, reset_ctl);
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return 0;
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}
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static int sandbox_reset_assert(struct reset_ctl *reset_ctl)
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{
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struct sandbox_reset *sbr = dev_get_priv(reset_ctl->dev);
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debug("%s(reset_ctl=%p)\n", __func__, reset_ctl);
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sbr->signals[reset_ctl->id].asserted = true;
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return 0;
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}
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static int sandbox_reset_deassert(struct reset_ctl *reset_ctl)
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{
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struct sandbox_reset *sbr = dev_get_priv(reset_ctl->dev);
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debug("%s(reset_ctl=%p)\n", __func__, reset_ctl);
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sbr->signals[reset_ctl->id].asserted = false;
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return 0;
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}
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static int sandbox_reset_bind(struct udevice *dev)
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{
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debug("%s(dev=%p)\n", __func__, dev);
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return 0;
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}
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static int sandbox_reset_probe(struct udevice *dev)
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{
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debug("%s(dev=%p)\n", __func__, dev);
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return 0;
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}
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static const struct udevice_id sandbox_reset_ids[] = {
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{ .compatible = "sandbox,reset-ctl" },
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{ }
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};
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struct reset_ops sandbox_reset_reset_ops = {
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.request = sandbox_reset_request,
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.free = sandbox_reset_free,
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.rst_assert = sandbox_reset_assert,
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.rst_deassert = sandbox_reset_deassert,
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};
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U_BOOT_DRIVER(sandbox_reset) = {
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.name = "sandbox_reset",
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.id = UCLASS_RESET,
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.of_match = sandbox_reset_ids,
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.bind = sandbox_reset_bind,
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.probe = sandbox_reset_probe,
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.priv_auto_alloc_size = sizeof(struct sandbox_reset),
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.ops = &sandbox_reset_reset_ops,
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};
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int sandbox_reset_query(struct udevice *dev, unsigned long id)
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{
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struct sandbox_reset *sbr = dev_get_priv(dev);
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debug("%s(dev=%p, id=%ld)\n", __func__, dev, id);
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if (id >= SANDBOX_RESET_SIGNALS)
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return -EINVAL;
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return sbr->signals[id].asserted;
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}
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