/* * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * Neither the name of ARM nor the names of its contributors may be used * to endorse or promote products derived from this software without specific * prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include #include #include #include #include #include /* * System Power Manager (SPM) is a hardware module, which controls cpu or * system power for different power scenarios using different firmware. * This driver controls the cpu power in cpu hotplug flow. */ #define PCM_HOTPLUG_VALID_MASK 0x0000ff00 #define PCM_HOTPLUG_VALID_SHIFT 0x8 /********************************************************** * PCM sequence for CPU hotplug **********************************************************/ static const unsigned int hotplug_binary[] = { 0x1900001f, 0x1020020c, 0x1950001f, 0x1020020c, 0xa9400005, 0x00000001, 0xe1000005, 0x1910001f, 0x10006720, 0x814c9001, 0xd82000e5, 0x17c07c1f, 0x1900001f, 0x10001220, 0x1950001f, 0x10001220, 0xa15f0405, 0xe1000005, 0x1900001f, 0x10001228, 0x1950001f, 0x10001228, 0x810f1401, 0xd8200244, 0x17c07c1f, 0xe2e0006d, 0xe2e0002d, 0x1a00001f, 0x100062b8, 0x1910001f, 0x100062b8, 0xa9000004, 0x00000001, 0xe2000004, 0x1910001f, 0x100062b8, 0x81142804, 0xd8200444, 0x17c07c1f, 0xe2e0002c, 0xe2e0003c, 0xe2e0003e, 0xe2e0003a, 0xe2e00032, 0x1910001f, 0x1000660c, 0x81079001, 0x1950001f, 0x10006610, 0x81479401, 0xa1001404, 0xd8000584, 0x17c07c1f, 0x1900001f, 0x10006404, 0x1950001f, 0x10006404, 0xa1568405, 0xe1000005, 0xf0000000, 0x17c07c1f, 0x1900001f, 0x10006404, 0x1950001f, 0x10006404, 0x89400005, 0x0000dfff, 0xe1000005, 0xe2e00036, 0xe2e0003e, 0x1910001f, 0x1000660c, 0x81079001, 0x1950001f, 0x10006610, 0x81479401, 0x81001404, 0xd82008c4, 0x17c07c1f, 0xe2e0002e, 0x1a00001f, 0x100062b8, 0x1910001f, 0x100062b8, 0x89000004, 0x0000fffe, 0xe2000004, 0x1910001f, 0x100062b8, 0x81142804, 0xd8000ae4, 0x17c07c1f, 0xe2e0006e, 0xe2e0004e, 0xe2e0004c, 0xe2e0004d, 0x1900001f, 0x10001220, 0x1950001f, 0x10001220, 0x89400005, 0xbfffffff, 0xe1000005, 0x1900001f, 0x10001228, 0x1950001f, 0x10001228, 0x810f1401, 0xd8000ce4, 0x17c07c1f, 0x1900001f, 0x1020020c, 0x1950001f, 0x1020020c, 0x89400005, 0xfffffffe, 0xe1000005, 0xf0000000, 0x17c07c1f, 0x1212841f, 0xe2e00036, 0xe2e0003e, 0x1380201f, 0xe2e0003c, 0xe2a00000, 0x1b80001f, 0x20000080, 0xe2e0007c, 0x1b80001f, 0x20000003, 0xe2e0005c, 0xe2e0004c, 0xe2e0004d, 0xf0000000, 0x17c07c1f, 0xe2e0004f, 0xe2e0006f, 0xe2e0002f, 0xe2a00001, 0x1b80001f, 0x20000080, 0xe2e0002e, 0xe2e0003e, 0xe2e00032, 0xf0000000, 0x17c07c1f, 0x1212841f, 0xe2e00026, 0xe2e0002e, 0x1380201f, 0x1a00001f, 0x100062b4, 0x1910001f, 0x100062b4, 0x81322804, 0xe2000004, 0x81202804, 0xe2000004, 0x1b80001f, 0x20000034, 0x1910001f, 0x100062b4, 0x81142804, 0xd8001404, 0x17c07c1f, 0xe2e0000e, 0xe2e0000c, 0xe2e0000d, 0xf0000000, 0x17c07c1f, 0xe2e0002d, 0x1a00001f, 0x100062b4, 0x1910001f, 0x100062b4, 0xa1002804, 0xe2000004, 0xa1122804, 0xe2000004, 0x1b80001f, 0x20000080, 0x1910001f, 0x100062b4, 0x81142804, 0xd82016a4, 0x17c07c1f, 0xe2e0002f, 0xe2e0002b, 0xe2e00023, 0x1380201f, 0xe2e00022, 0xf0000000, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x1840001f, 0x00000001, 0x1840001f, 0x00000001, 0x1840001f, 0x00000001, 0xa1d48407, 0x1b00001f, 0x2f7be75f, 0xe8208000, 0x10006354, 0xfffe7b47, 0xa1d10407, 0x1b80001f, 0x20000020, 0x17c07c1f, 0x1910001f, 0x10006b00, 0x81461001, 0xb14690a1, 0xd82044e5, 0x17c07c1f, 0x1910001f, 0x10006610, 0x81079001, 0xd80044e4, 0x17c07c1f, 0x1990001f, 0x10006b00, 0x81421801, 0x82429801, 0x81402405, 0xd80044e5, 0x17c07c1f, 0x1a40001f, 0x100062b0, 0x1280041f, 0xc24007a0, 0x17c07c1f, 0x1910001f, 0x10006b00, 0x81449001, 0xd8204be5, 0x17c07c1f, 0x1910001f, 0x10006b00, 0x81009001, 0xd8204984, 0x17c07c1f, 0x1910001f, 0x10006610, 0x81051001, 0xd8204be4, 0x17c07c1f, 0x1910001f, 0x10006720, 0x81489001, 0xd82046c5, 0x17c07c1f, 0x1a40001f, 0x10006218, 0x1a80001f, 0x10006264, 0xc24010e0, 0x17c07c1f, 0x1910001f, 0x1000660c, 0x81051001, 0x1950001f, 0x10006610, 0x81451401, 0xa1001404, 0xd8004824, 0x17c07c1f, 0xd0004b00, 0x17c07c1f, 0x17c07c1f, 0x1910001f, 0x10006610, 0x81051001, 0xd8004be4, 0x17c07c1f, 0x1a40001f, 0x10006218, 0x1a80001f, 0x10006264, 0xc2400ee0, 0x17c07c1f, 0x1910001f, 0x10006b00, 0x89000004, 0xfffffdff, 0x1940001f, 0x10006b00, 0xe1400004, 0x17c07c1f, 0x1910001f, 0x10006b00, 0x81451001, 0xd8205305, 0x17c07c1f, 0x1910001f, 0x10006b00, 0x81011001, 0xd82050a4, 0x17c07c1f, 0x1910001f, 0x10006610, 0x81059001, 0xd8205304, 0x17c07c1f, 0x1910001f, 0x10006720, 0x81491001, 0xd8204de5, 0x17c07c1f, 0x1a40001f, 0x1000621c, 0x1a80001f, 0x1000626c, 0xc24010e0, 0x17c07c1f, 0x1910001f, 0x1000660c, 0x81059001, 0x1950001f, 0x10006610, 0x81459401, 0xa1001404, 0xd8004f44, 0x17c07c1f, 0xd0005220, 0x17c07c1f, 0x17c07c1f, 0x1910001f, 0x10006610, 0x81059001, 0xd8005304, 0x17c07c1f, 0x1a40001f, 0x1000621c, 0x1a80001f, 0x1000626c, 0xc2400ee0, 0x17c07c1f, 0x1910001f, 0x10006b00, 0x89000004, 0xfffffbff, 0x1940001f, 0x10006b00, 0xe1400004, 0x17c07c1f, 0x1910001f, 0x10006b00, 0x81459001, 0xd8205a25, 0x17c07c1f, 0x1910001f, 0x10006b00, 0x81019001, 0xd82057c4, 0x17c07c1f, 0x1910001f, 0x10006610, 0x81061001, 0xd8205a24, 0x17c07c1f, 0x1910001f, 0x10006720, 0x81499001, 0xd8205505, 0x17c07c1f, 0x1a40001f, 0x10006220, 0x1a80001f, 0x10006274, 0xc24010e0, 0x17c07c1f, 0x1910001f, 0x1000660c, 0x81061001, 0x1950001f, 0x10006610, 0x81461401, 0xa1001404, 0xd8005664, 0x17c07c1f, 0xd0005940, 0x17c07c1f, 0x17c07c1f, 0x1910001f, 0x10006610, 0x81061001, 0xd8005a24, 0x17c07c1f, 0x1a40001f, 0x10006220, 0x1a80001f, 0x10006274, 0xc2400ee0, 0x17c07c1f, 0x1910001f, 0x10006b00, 0x89000004, 0xfffff7ff, 0x1940001f, 0x10006b00, 0xe1400004, 0x17c07c1f, 0x1910001f, 0x10006b00, 0x81461001, 0xd8206185, 0x17c07c1f, 0x1910001f, 0x10006b00, 0x81021001, 0xd8205ec4, 0x17c07c1f, 0x1910001f, 0x10006610, 0x81081001, 0xd8206184, 0x17c07c1f, 0x1910001f, 0x10006720, 0x814a1001, 0xd8205c25, 0x17c07c1f, 0x1a40001f, 0x100062a0, 0x1280041f, 0xc2401540, 0x17c07c1f, 0x1910001f, 0x1000660c, 0x81081001, 0x1950001f, 0x10006610, 0x81481401, 0xa1001404, 0xd8005d64, 0x17c07c1f, 0xd00060a0, 0x17c07c1f, 0x17c07c1f, 0x1910001f, 0x10006610, 0x81479001, 0x81881001, 0x69a00006, 0x00000000, 0x81401805, 0xd8206185, 0x17c07c1f, 0x1a40001f, 0x100062a0, 0x1280041f, 0xc2401240, 0x17c07c1f, 0x1910001f, 0x10006b00, 0x89000004, 0xffffefff, 0x1940001f, 0x10006b00, 0xe1400004, 0x17c07c1f, 0x1910001f, 0x10006b00, 0x81469001, 0xd82068e5, 0x17c07c1f, 0x1910001f, 0x10006b00, 0x81029001, 0xd8206624, 0x17c07c1f, 0x1910001f, 0x10006610, 0x81089001, 0xd82068e4, 0x17c07c1f, 0x1910001f, 0x10006720, 0x814a9001, 0xd8206385, 0x17c07c1f, 0x1a40001f, 0x100062a4, 0x1290841f, 0xc2401540, 0x17c07c1f, 0x1910001f, 0x1000660c, 0x81089001, 0x1950001f, 0x10006610, 0x81489401, 0xa1001404, 0xd80064c4, 0x17c07c1f, 0xd0006800, 0x17c07c1f, 0x17c07c1f, 0x1910001f, 0x10006610, 0x81479001, 0x81889001, 0x69a00006, 0x00000000, 0x81401805, 0xd82068e5, 0x17c07c1f, 0x1a40001f, 0x100062a4, 0x1290841f, 0xc2401240, 0x17c07c1f, 0x1910001f, 0x10006b00, 0x89000004, 0xffffdfff, 0x1940001f, 0x10006b00, 0xe1400004, 0x1910001f, 0x10006610, 0x81479001, 0x81881001, 0x69600005, 0x00000000, 0xa1401805, 0x81889001, 0xa1401805, 0xd8006bc5, 0x17c07c1f, 0x1910001f, 0x10006b00, 0x81421001, 0x82429001, 0x82802405, 0xd8206bca, 0x17c07c1f, 0x1a40001f, 0x100062b0, 0x1280041f, 0xc2400000, 0x17c07c1f, 0x1990001f, 0x10006b00, 0x89800006, 0x00003f00, 0x69200006, 0x00000000, 0xd82041e4, 0x17c07c1f, 0x1990001f, 0x10006320, 0x69200006, 0xbeefbeef, 0xd8006dc4, 0x17c07c1f, 0xd00041e0, 0x17c07c1f, 0x1910001f, 0x10006358, 0x810b1001, 0xd8006dc4, 0x17c07c1f, 0x1980001f, 0xdeaddead, 0x19c0001f, 0x01411820, 0xf0000000 }; static const struct pcm_desc hotplug_pcm = { .version = "pcm_power_down_mt8173_V37", .base = hotplug_binary, .size = 888, .sess = 2, .replace = 0, }; static struct pwr_ctrl hotplug_ctrl = { .wake_src = 0, .wake_src_md32 = 0, .wfi_op = WFI_OP_OR, .mcusys_idle_mask = 1, .ca7top_idle_mask = 1, .ca15top_idle_mask = 1, .disp_req_mask = 1, .mfg_req_mask = 1, .md32_req_mask = 1, .syspwreq_mask = 1, .pcm_flags = 0, }; static const struct spm_lp_scen spm_hotplug = { .pcmdesc = &hotplug_pcm, .pwrctrl = &hotplug_ctrl, }; void spm_go_to_hotplug(void) { const struct pcm_desc *pcmdesc = spm_hotplug.pcmdesc; struct pwr_ctrl *pwrctrl = spm_hotplug.pwrctrl; set_pwrctrl_pcm_flags(pwrctrl, 0); spm_reset_and_init_pcm(); spm_kick_im_to_fetch(pcmdesc); spm_set_power_control(pwrctrl); spm_set_wakeup_event(pwrctrl); spm_kick_pcm_to_run(pwrctrl); } void spm_clear_hotplug(void) { /* Inform SPM that CPU wants to program CPU_WAKEUP_EVENT and * DISABLE_CPU_DROM */ mmio_write_32(SPM_PCM_REG_DATA_INI, PCM_HANDSHAKE_SEND1); mmio_write_32(SPM_PCM_PWR_IO_EN, PCM_RF_SYNC_R6); mmio_write_32(SPM_PCM_PWR_IO_EN, 0); /* Wait SPM's response, can't use sleep api */ while ((mmio_read_32(SPM_PCM_FSM_STA) & PCM_END_FSM_STA_MASK) != PCM_END_FSM_STA_DEF) ; /* no hotplug pcm running */ clear_all_ready(); } void spm_hotplug_on(unsigned long mpidr) { unsigned long linear_id; linear_id = platform_get_core_pos(mpidr); spm_lock_get(); if (is_hotplug_ready() == 0) { spm_mcdi_wakeup_all_cores(); mmio_clrbits_32(SPM_PCM_RESERVE, PCM_HOTPLUG_VALID_MASK); spm_go_to_hotplug(); set_hotplug_ready(); } /* turn on CPUx */ mmio_clrsetbits_32(SPM_PCM_RESERVE, PCM_HOTPLUG_VALID_MASK | (1 << linear_id), 1 << (linear_id + PCM_HOTPLUG_VALID_SHIFT)); spm_lock_release(); } void spm_hotplug_off(unsigned long mpidr) { unsigned long linear_id; linear_id = platform_get_core_pos(mpidr); spm_lock_get(); if (is_hotplug_ready() == 0) { spm_mcdi_wakeup_all_cores(); mmio_clrbits_32(SPM_PCM_RESERVE, PCM_HOTPLUG_VALID_MASK); spm_go_to_hotplug(); set_hotplug_ready(); } mmio_clrsetbits_32(SPM_PCM_RESERVE, PCM_HOTPLUG_VALID_MASK, (1 << linear_id) | (1 << (linear_id + PCM_HOTPLUG_VALID_SHIFT))); spm_lock_release(); }