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d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commitc8ffd1356d, reversing changes made to2ee6f3a5f7. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
89 lines
1.7 KiB
C
89 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2018
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* Mario Six, Guntermann & Drunck GmbH, mario.six@gdsys.cc
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*/
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#define LOG_CATEGORY UCLASS_AXI_EMUL
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#include <common.h>
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#include <axi.h>
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#include <dm.h>
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#include <log.h>
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#include <dm/device-internal.h>
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#include <asm/axi.h>
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int axi_sandbox_get_emul(struct udevice *bus, ulong address,
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const enum axi_size_t size, struct udevice **emulp)
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{
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struct udevice *dev;
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u32 reg[2];
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uint offset;
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switch (size) {
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case AXI_SIZE_8:
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offset = 1;
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break;
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case AXI_SIZE_16:
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offset = 2;
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break;
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case AXI_SIZE_32:
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offset = 4;
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break;
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default:
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debug("%s: Unknown AXI transfer size '%d'", bus->name, size);
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offset = 0;
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}
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/*
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* Note: device_find_* don't activate the devices; they're activated
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* as-needed below.
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*/
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for (device_find_first_child(bus, &dev);
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dev;
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device_find_next_child(&dev)) {
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int ret;
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ret = dev_read_u32_array(dev, "reg", reg, ARRAY_SIZE(reg));
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if (ret) {
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debug("%s: Could not read 'reg' property of %s\n",
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bus->name, dev->name);
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continue;
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}
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/*
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* Does the transfer's address fall into this device's address
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* space?
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*/
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if (address >= reg[0] && address <= reg[0] + reg[1] - offset) {
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/* If yes, activate it... */
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if (device_probe(dev)) {
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debug("%s: Could not activate %s\n",
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bus->name, dev->name);
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return -ENODEV;
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}
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/* ...and return it */
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*emulp = dev;
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return 0;
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}
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}
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return -ENODEV;
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}
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int axi_get_store(struct udevice *dev, u8 **storep)
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{
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struct axi_emul_ops *ops = axi_emul_get_ops(dev);
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if (!ops->get_store)
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return -ENOSYS;
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return ops->get_store(dev, storep);
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}
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UCLASS_DRIVER(axi_emul) = {
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.id = UCLASS_AXI_EMUL,
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.name = "axi_emul",
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};
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