mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-09-15 01:03:24 +09:00
ffdf9f9ae0
This is based on Thierry Reding's work and uses Ian Campell's preparatory patches. It comes with full support for CPU_ON/OFF PSCI services. The algorithm used in this version for turning CPUs on and off was proposed by Peter De Schrijver and Thierry Reding in http://thread.gmane.org/gmane.comp.boot-loaders.u-boot/210881. It consists of first enabling CPU1..3 via the PMC, just to powergate them again with the help of the Flow Controller. Once the Flow Controller is in place, we can leave the PMC alone while processing CPU_ON and CPU_OFF PSCI requests. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
47 lines
1.2 KiB
C
47 lines
1.2 KiB
C
/*
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* (C) Copyright 2010-2013
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* NVIDIA Corporation <www.nvidia.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef _TEGRA124_FLOW_H_
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#define _TEGRA124_FLOW_H_
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struct flow_ctlr {
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u32 halt_cpu_events; /* offset 0x00 */
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u32 halt_cop_events; /* offset 0x04 */
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u32 cpu_csr; /* offset 0x08 */
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u32 cop_csr; /* offset 0x0c */
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u32 xrq_events; /* offset 0x10 */
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u32 halt_cpu1_events; /* offset 0x14 */
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u32 cpu1_csr; /* offset 0x18 */
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u32 halt_cpu2_events; /* offset 0x1c */
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u32 cpu2_csr; /* offset 0x20 */
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u32 halt_cpu3_events; /* offset 0x24 */
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u32 cpu3_csr; /* offset 0x28 */
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u32 cluster_control; /* offset 0x2c */
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u32 halt_cop1_events; /* offset 0x30 */
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u32 halt_cop1_csr; /* offset 0x34 */
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u32 cpu_pwr_csr; /* offset 0x38 */
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u32 mpid; /* offset 0x3c */
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u32 ram_repair; /* offset 0x40 */
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};
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/* HALT_COP_EVENTS_0, 0x04 */
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#define EVENT_MSEC (1 << 24)
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#define EVENT_USEC (1 << 25)
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#define EVENT_JTAG (1 << 28)
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#define EVENT_MODE_STOP (2 << 29)
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/* FLOW_CTLR_CLUSTER_CONTROL_0 0x2c */
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#define ACTIVE_LP (1 << 0)
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/* CPUn_CSR_0 */
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#define CSR_ENABLE (1 << 0)
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#define CSR_IMMEDIATE_WAKE (1 << 3)
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#define CSR_WAIT_WFI_SHIFT 8
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#define CSR_PWR_OFF_STS (1 << 16)
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#endif /* _TEGRA124_FLOW_H_ */
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