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https://source.denx.de/u-boot/u-boot.git
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4146a31dce
Currently xilinx_pm_request API supports four u32 payloads. However the legacy SMC format supports five u32 request payloads and extended SMC format supports six u32 request payloads. Add support for the same in xilinx_pm_request API. Also add two dummy arguments to all the callers of xilinx_pm_request. The TF-A always fills seven u32 return payload so add support for the same in xilinx_pm_request API. Signed-off-by: Naman Trivedi <naman.trivedimanojbhai@amd.com> Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@amd.com> Acked-by: Senthil Nathan Thangaraj <senthilnathan.thangaraj@amd.com> Signed-off-by: Michal Simek <michal.simek@amd.com> Link: https://lore.kernel.org/r/5ae6b560741f3ca8b89059c4ebb87acf75b4718e.1756388537.git.michal.simek@amd.com
78 lines
1.7 KiB
C
78 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2021, Xilinx. Inc.
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*/
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#include <dm.h>
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#include <dm/device_compat.h>
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#include <log.h>
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#include <malloc.h>
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#include <misc.h>
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#include <power-domain-uclass.h>
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#include <linux/bitops.h>
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#include <zynqmp_firmware.h>
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static int zynqmp_pm_request_node(const u32 node, const u32 capabilities,
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const u32 qos, const enum zynqmp_pm_request_ack ack)
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{
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return xilinx_pm_request(PM_REQUEST_NODE, node, capabilities,
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qos, ack, 0, 0, NULL);
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}
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static int zynqmp_power_domain_request(struct power_domain *power_domain)
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{
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int ret = 0;
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dev_dbg(power_domain->dev, "Request for id: %ld\n", power_domain->id);
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if (IS_ENABLED(CONFIG_ARCH_ZYNQMP)) {
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ret = zynqmp_pmufw_node(power_domain->id);
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if (ret == -ENODEV)
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ret = 0;
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}
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return ret;
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}
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static int zynqmp_power_domain_free(struct power_domain *power_domain)
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{
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/* nop now */
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return 0;
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}
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static int zynqmp_power_domain_on(struct power_domain *power_domain)
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{
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dev_dbg(power_domain->dev, "Domain ON for id: %ld\n", power_domain->id);
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return zynqmp_pm_request_node(power_domain->id,
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ZYNQMP_PM_CAPABILITY_ACCESS,
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ZYNQMP_PM_MAX_QOS,
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ZYNQMP_PM_REQUEST_ACK_BLOCKING);
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}
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static int zynqmp_power_domain_off(struct power_domain *power_domain)
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{
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/* nop now */
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return 0;
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}
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struct power_domain_ops zynqmp_power_domain_ops = {
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.request = zynqmp_power_domain_request,
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.rfree = zynqmp_power_domain_free,
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.on = zynqmp_power_domain_on,
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.off = zynqmp_power_domain_off,
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};
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static int zynqmp_power_domain_probe(struct udevice *dev)
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{
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return 0;
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}
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U_BOOT_DRIVER(zynqmp_power_domain) = {
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.name = "zynqmp_power_domain",
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.id = UCLASS_POWER_DOMAIN,
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.probe = zynqmp_power_domain_probe,
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.ops = &zynqmp_power_domain_ops,
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};
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