261 lines
16 KiB
C
261 lines
16 KiB
C
/*
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* Copyright (c) Lotus. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*
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*/
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//#define CRC_CHECK
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extern void str_delay_us(int us);
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#ifdef CRC_CHECK
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extern unsigned short crc16_asm(unsigned char *data, unsigned int length);
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#endif
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void lotus_pm_ddr_saving(void)
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{
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unsigned int ddr_type;
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ddr_type = *(volatile unsigned int *)(0x120d0000);
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ddr_type &= 0x7;
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*(volatile unsigned int *)(0x12040000) = 'e';
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#ifdef CRC_CHECK
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*(volatile unsigned int *)(0x12120350) = crc16_asm((unsigned char *)0x40000000,0x10000000);
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#endif
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__asm__ volatile("dsb sy");
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__asm__ volatile("isb");
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while(*(volatile unsigned int *)(0x120d2900) != 0x1);
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// enter ddr selfflush channel0
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*(volatile unsigned int *)(0x120d315c) = 0x7200a0;
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*(volatile unsigned int *)(0x120d313c) = 0x1000005;
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*(volatile unsigned int *)(0x120d3138) = 0x1;
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*(volatile unsigned int *)(0x120d3138) = 0x0;
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if (ddr_type == 3) { //LPDDR4
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// enter ddr selfflush channel1
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*(volatile unsigned int *)(0x120d415c) = 0x7200a0;
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*(volatile unsigned int *)(0x120d413c) = 0x1000005;
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*(volatile unsigned int *)(0x120d4138) = 0x1;
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*(volatile unsigned int *)(0x120d4138) = 0x0;
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}
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str_delay_us(1);
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//read ddr training result to lpds
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*(volatile unsigned int *)(0x12120080) = *(volatile unsigned int *)(0x12103104);
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*(volatile unsigned int *)(0x12120084) = *(volatile unsigned int *)(0x12103120);
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*(volatile unsigned int *)(0x12120088) = *(volatile unsigned int *)(0x12103124);
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*(volatile unsigned int *)(0x1212008c) = *(volatile unsigned int *)(0x12103128);
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*(volatile unsigned int *)(0x12120090) = *(volatile unsigned int *)(0x1210312c);
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*(volatile unsigned int *)(0x12120094) = *(volatile unsigned int *)(0x12103130);
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*(volatile unsigned int *)(0x12120098) = *(volatile unsigned int *)(0x12103134);
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*(volatile unsigned int *)(0x1212009c) = *(volatile unsigned int *)(0x12103138);
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*(volatile unsigned int *)(0x121200a0) = *(volatile unsigned int *)(0x1210313c);
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*(volatile unsigned int *)(0x121200a4) = *(volatile unsigned int *)(0x12103110);
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*(volatile unsigned int *)(0x121200a8) = *(volatile unsigned int *)(0x12103100);
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*(volatile unsigned int *)(0x121200ac) = *(volatile unsigned int *)(0x12104108);
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*(volatile unsigned int *)(0x121200b0) = *(volatile unsigned int *)(0x12104130);
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*(volatile unsigned int *)(0x121200b4) = *(volatile unsigned int *)(0x12104134);
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*(volatile unsigned int *)(0x121200b8) = *(volatile unsigned int *)(0x12104138);
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*(volatile unsigned int *)(0x121200bc) = *(volatile unsigned int *)(0x1210413c);
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*(volatile unsigned int *)(0x121200c0) = *(volatile unsigned int *)(0x12104140);
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*(volatile unsigned int *)(0x121200c4) = *(volatile unsigned int *)(0x12105108);
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*(volatile unsigned int *)(0x121200c8) = *(volatile unsigned int *)(0x12105130);
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*(volatile unsigned int *)(0x121200cc) = *(volatile unsigned int *)(0x12105134);
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*(volatile unsigned int *)(0x121200d0) = *(volatile unsigned int *)(0x12105138);
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*(volatile unsigned int *)(0x121200d4) = *(volatile unsigned int *)(0x1210513c);
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*(volatile unsigned int *)(0x121200d8) = *(volatile unsigned int *)(0x12105140);
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*(volatile unsigned int *)(0x121200dc) = *(volatile unsigned int *)(0x12106108);
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*(volatile unsigned int *)(0x121200e0) = *(volatile unsigned int *)(0x12106130);
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*(volatile unsigned int *)(0x121200e4) = *(volatile unsigned int *)(0x12106134);
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*(volatile unsigned int *)(0x121200e8) = *(volatile unsigned int *)(0x12106138);
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*(volatile unsigned int *)(0x121200ec) = *(volatile unsigned int *)(0x1210613c);
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*(volatile unsigned int *)(0x121200f0) = *(volatile unsigned int *)(0x12106140);
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*(volatile unsigned int *)(0x121200f4) = *(volatile unsigned int *)(0x12107108);
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*(volatile unsigned int *)(0x121200f8) = *(volatile unsigned int *)(0x12107130);
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*(volatile unsigned int *)(0x121200fc) = *(volatile unsigned int *)(0x12107134);
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*(volatile unsigned int *)(0x12120100) = *(volatile unsigned int *)(0x12107138);
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*(volatile unsigned int *)(0x12120104) = *(volatile unsigned int *)(0x1210713c);
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*(volatile unsigned int *)(0x12120108) = *(volatile unsigned int *)(0x12107140);
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*(volatile unsigned int *)(0x1212010c) = *(volatile unsigned int *)(0x12104100);
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*(volatile unsigned int *)(0x12120110) = *(volatile unsigned int *)(0x12104110);
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*(volatile unsigned int *)(0x12120114) = *(volatile unsigned int *)(0x12104114);
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*(volatile unsigned int *)(0x12120118) = *(volatile unsigned int *)(0x12104118);
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*(volatile unsigned int *)(0x1212011c) = *(volatile unsigned int *)(0x1210411c);
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*(volatile unsigned int *)(0x12120120) = *(volatile unsigned int *)(0x12104120);
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*(volatile unsigned int *)(0x12120124) = *(volatile unsigned int *)(0x12105100);
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*(volatile unsigned int *)(0x12120128) = *(volatile unsigned int *)(0x12105110);
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*(volatile unsigned int *)(0x1212012c) = *(volatile unsigned int *)(0x12105114);
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*(volatile unsigned int *)(0x12120130) = *(volatile unsigned int *)(0x12105118);
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*(volatile unsigned int *)(0x12120134) = *(volatile unsigned int *)(0x1210511c);
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*(volatile unsigned int *)(0x12120138) = *(volatile unsigned int *)(0x12105120);
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*(volatile unsigned int *)(0x1212013c) = *(volatile unsigned int *)(0x12106100);
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*(volatile unsigned int *)(0x12120140) = *(volatile unsigned int *)(0x12106110);
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*(volatile unsigned int *)(0x12120144) = *(volatile unsigned int *)(0x12106114);
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*(volatile unsigned int *)(0x12120148) = *(volatile unsigned int *)(0x12106118);
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*(volatile unsigned int *)(0x1212014c) = *(volatile unsigned int *)(0x1210611c);
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*(volatile unsigned int *)(0x12120150) = *(volatile unsigned int *)(0x12106120);
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*(volatile unsigned int *)(0x12120154) = *(volatile unsigned int *)(0x12107100);
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*(volatile unsigned int *)(0x12120158) = *(volatile unsigned int *)(0x12107110);
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*(volatile unsigned int *)(0x1212015c) = *(volatile unsigned int *)(0x12107114);
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*(volatile unsigned int *)(0x12120160) = *(volatile unsigned int *)(0x12107118);
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*(volatile unsigned int *)(0x12120164) = *(volatile unsigned int *)(0x1210711c);
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*(volatile unsigned int *)(0x12120168) = *(volatile unsigned int *)(0x12107120);
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*(volatile unsigned int *)(0x1212016c) = *(volatile unsigned int *)(0x12101204);
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*(volatile unsigned int *)(0x12120170) = *(volatile unsigned int *)(0x1210410c);
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*(volatile unsigned int *)(0x12120174) = *(volatile unsigned int *)(0x1210510c);
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*(volatile unsigned int *)(0x12120178) = *(volatile unsigned int *)(0x1210610c);
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*(volatile unsigned int *)(0x1212017c) = *(volatile unsigned int *)(0x1210710c);
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*(volatile unsigned int *)(0x12120180) = *(volatile unsigned int *)(0x12103200);
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*(volatile unsigned int *)(0x12120184) = *(volatile unsigned int *)(0x12104160);
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*(volatile unsigned int *)(0x12120188) = *(volatile unsigned int *)(0x12105160);
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*(volatile unsigned int *)(0x1212018c) = *(volatile unsigned int *)(0x12106160);
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*(volatile unsigned int *)(0x12120190) = *(volatile unsigned int *)(0x12107160);
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//ZQCAL
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*(volatile unsigned int *)(0x12120194) = *(volatile unsigned int *)(0x12100010);
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//PHYCTRL
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*(volatile unsigned int *)(0x12120198) = *(volatile unsigned int *)(0x12101004);
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*(volatile unsigned int *)(0x1212019C) = *(volatile unsigned int *)(0x1210101c);
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*(volatile unsigned int *)(0x121201a0) = *(volatile unsigned int *)(0x12101200);
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//DFICLK_CACTRL
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*(volatile unsigned int *)(0x121201a4) = *(volatile unsigned int *)(0x12103108);
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*(volatile unsigned int *)(0x121201a8) = *(volatile unsigned int *)(0x12103114);
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*(volatile unsigned int *)(0x121201ac) = *(volatile unsigned int *)(0x12103118);
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*(volatile unsigned int *)(0x121201b0) = *(volatile unsigned int *)(0x12103140);
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*(volatile unsigned int *)(0x121201b4) = *(volatile unsigned int *)(0x12103144);
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*(volatile unsigned int *)(0x121201b8) = *(volatile unsigned int *)(0x12103148);
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*(volatile unsigned int *)(0x121201bc) = *(volatile unsigned int *)(0x12103200);
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*(volatile unsigned int *)(0x121201c0) = *(volatile unsigned int *)(0x12103204);
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*(volatile unsigned int *)(0x121201c4) = *(volatile unsigned int *)(0x12103208);
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*(volatile unsigned int *)(0x121201c8) = *(volatile unsigned int *)(0x1210320C);
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*(volatile unsigned int *)(0x121201cc) = *(volatile unsigned int *)(0x12103298);
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*(volatile unsigned int *)(0x121201d0) = *(volatile unsigned int *)(0x1210329C);
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*(volatile unsigned int *)(0x121201d4) = *(volatile unsigned int *)(0x121032A0);
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*(volatile unsigned int *)(0x121201d8) = *(volatile unsigned int *)(0x121032A4);
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*(volatile unsigned int *)(0x121201dc) = *(volatile unsigned int *)(0x121032A8);
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*(volatile unsigned int *)(0x121201e0) = *(volatile unsigned int *)(0x121032AC);
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//DFICLK_DQCTRL
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*(volatile unsigned int *)(0x121201e4) = *(volatile unsigned int *)(0x12104000);
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*(volatile unsigned int *)(0x121201e8) = *(volatile unsigned int *)(0x12104004);
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*(volatile unsigned int *)(0x121201ec) = *(volatile unsigned int *)(0x12104124);
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*(volatile unsigned int *)(0x121201f0) = *(volatile unsigned int *)(0x12104128);
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*(volatile unsigned int *)(0x121201f4) = *(volatile unsigned int *)(0x1210414c);
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*(volatile unsigned int *)(0x121201f8) = *(volatile unsigned int *)(0x12104150);
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*(volatile unsigned int *)(0x121201fc) = *(volatile unsigned int *)(0x12104158);
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*(volatile unsigned int *)(0x12120200) = *(volatile unsigned int *)(0x1210415c);
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*(volatile unsigned int *)(0x12120204) = *(volatile unsigned int *)(0x12104160);
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*(volatile unsigned int *)(0x12120208) = *(volatile unsigned int *)(0x12104164);
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*(volatile unsigned int *)(0x1212020c) = *(volatile unsigned int *)(0x12104168);
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*(volatile unsigned int *)(0x12120210) = *(volatile unsigned int *)(0x1210416c);
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*(volatile unsigned int *)(0x12120214) = *(volatile unsigned int *)(0x12105000);
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*(volatile unsigned int *)(0x12120218) = *(volatile unsigned int *)(0x12105004);
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*(volatile unsigned int *)(0x1212021c) = *(volatile unsigned int *)(0x12105124);
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*(volatile unsigned int *)(0x12120220) = *(volatile unsigned int *)(0x12105128);
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*(volatile unsigned int *)(0x12120224) = *(volatile unsigned int *)(0x1210514c);
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*(volatile unsigned int *)(0x12120228) = *(volatile unsigned int *)(0x12105150);
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*(volatile unsigned int *)(0x1212022c) = *(volatile unsigned int *)(0x12105158);
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*(volatile unsigned int *)(0x12120230) = *(volatile unsigned int *)(0x1210515c);
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*(volatile unsigned int *)(0x12120234) = *(volatile unsigned int *)(0x12105160);
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*(volatile unsigned int *)(0x12120238) = *(volatile unsigned int *)(0x12105164);
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*(volatile unsigned int *)(0x1212023c) = *(volatile unsigned int *)(0x12105168);
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*(volatile unsigned int *)(0x12120240) = *(volatile unsigned int *)(0x1210516c);
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*(volatile unsigned int *)(0x12120244) = *(volatile unsigned int *)(0x12106000);
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*(volatile unsigned int *)(0x12120248) = *(volatile unsigned int *)(0x12106004);
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*(volatile unsigned int *)(0x1212024c) = *(volatile unsigned int *)(0x12106124);
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*(volatile unsigned int *)(0x12120250) = *(volatile unsigned int *)(0x12106128);
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*(volatile unsigned int *)(0x12120254) = *(volatile unsigned int *)(0x1210614c);
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*(volatile unsigned int *)(0x12120258) = *(volatile unsigned int *)(0x12106150);
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*(volatile unsigned int *)(0x1212025c) = *(volatile unsigned int *)(0x12106158);
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*(volatile unsigned int *)(0x12120260) = *(volatile unsigned int *)(0x1210615c);
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*(volatile unsigned int *)(0x12120264) = *(volatile unsigned int *)(0x12106160);
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*(volatile unsigned int *)(0x12120268) = *(volatile unsigned int *)(0x12106164);
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*(volatile unsigned int *)(0x1212026c) = *(volatile unsigned int *)(0x12106168);
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*(volatile unsigned int *)(0x12120270) = *(volatile unsigned int *)(0x1210616c);
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*(volatile unsigned int *)(0x12120274) = *(volatile unsigned int *)(0x12107000);
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*(volatile unsigned int *)(0x12120278) = *(volatile unsigned int *)(0x12107004);
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*(volatile unsigned int *)(0x1212027c) = *(volatile unsigned int *)(0x12107124);
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*(volatile unsigned int *)(0x12120280) = *(volatile unsigned int *)(0x12107128);
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*(volatile unsigned int *)(0x12120284) = *(volatile unsigned int *)(0x1210714c);
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*(volatile unsigned int *)(0x12120288) = *(volatile unsigned int *)(0x12107150);
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*(volatile unsigned int *)(0x1212028c) = *(volatile unsigned int *)(0x12107158);
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*(volatile unsigned int *)(0x12120290) = *(volatile unsigned int *)(0x1210715c);
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*(volatile unsigned int *)(0x12120294) = *(volatile unsigned int *)(0x12107160);
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*(volatile unsigned int *)(0x12120298) = *(volatile unsigned int *)(0x12107164);
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*(volatile unsigned int *)(0x1212029c) = *(volatile unsigned int *)(0x12107168);
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*(volatile unsigned int *)(0x121202a0) = *(volatile unsigned int *)(0x1210716c);
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*(volatile unsigned int *)(0x121202a4) = *(volatile unsigned int *)(0x12101220);
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*(volatile unsigned int *)(0x121202a8) = *(volatile unsigned int *)(0x12101224);
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*(volatile unsigned int *)(0x121202ac) = *(volatile unsigned int *)(0x12101228);
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*(volatile unsigned int *)(0x121202b0) = *(volatile unsigned int *)(0x1210122C);
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*(volatile unsigned int *)(0x121202b4) = *(volatile unsigned int *)(0x12101230);
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*(volatile unsigned int *)(0x121202b8) = *(volatile unsigned int *)(0x12101234);
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*(volatile unsigned int *)(0x121202bc) = *(volatile unsigned int *)(0x12101238);
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*(volatile unsigned int *)(0x121202c0) = *(volatile unsigned int *)(0x1210123C);
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*(volatile unsigned int *)(0x121202c4) = *(volatile unsigned int *)(0x12101248);
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*(volatile unsigned int *)(0x121202c8) = *(volatile unsigned int *)(0x1210124C);
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*(volatile unsigned int *)(0x121202cc) = *(volatile unsigned int *)(0x12101250);
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*(volatile unsigned int *)(0x121202d0) = *(volatile unsigned int *)(0x12101254);
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*(volatile unsigned int *)(0x121202d4) = *(volatile unsigned int *)(0x12101258);
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*(volatile unsigned int *)(0x121202d8) = *(volatile unsigned int *)(0x12102220);
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*(volatile unsigned int *)(0x121202dc) = *(volatile unsigned int *)(0x12102224);
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*(volatile unsigned int *)(0x121202e0) = *(volatile unsigned int *)(0x12102228);
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*(volatile unsigned int *)(0x121202e4) = *(volatile unsigned int *)(0x1210222C);
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*(volatile unsigned int *)(0x121202e8) = *(volatile unsigned int *)(0x12102230);
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*(volatile unsigned int *)(0x121202ec) = *(volatile unsigned int *)(0x12102234);
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*(volatile unsigned int *)(0x121202f0) = *(volatile unsigned int *)(0x12102238);
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*(volatile unsigned int *)(0x121202f4) = *(volatile unsigned int *)(0x1210223C);
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*(volatile unsigned int *)(0x121202f8) = *(volatile unsigned int *)(0x12102248);
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*(volatile unsigned int *)(0x121202fc) = *(volatile unsigned int *)(0x1210224C);
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*(volatile unsigned int *)(0x12120300) = *(volatile unsigned int *)(0x12102250);
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*(volatile unsigned int *)(0x12120304) = *(volatile unsigned int *)(0x12102254);
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*(volatile unsigned int *)(0x12120308) = *(volatile unsigned int *)(0x12102258);
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if (ddr_type == 3) { //LPDDR4
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*(volatile unsigned int *)(0x12101020) = 0x50000; //swicth to channel1
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*(volatile unsigned int *)(0x1212030c) = *(volatile unsigned int *)(0x12103104);
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*(volatile unsigned int *)(0x12120310) = *(volatile unsigned int *)(0x12103120);
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*(volatile unsigned int *)(0x12120314) = *(volatile unsigned int *)(0x12103124);
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*(volatile unsigned int *)(0x12120318) = *(volatile unsigned int *)(0x12103128);
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*(volatile unsigned int *)(0x1212031c) = *(volatile unsigned int *)(0x1210312c);
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*(volatile unsigned int *)(0x12120320) = *(volatile unsigned int *)(0x12103130);
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*(volatile unsigned int *)(0x12120324) = *(volatile unsigned int *)(0x12103134);
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*(volatile unsigned int *)(0x12120328) = *(volatile unsigned int *)(0x12103138);
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*(volatile unsigned int *)(0x1212032c) = *(volatile unsigned int *)(0x1210313c);
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*(volatile unsigned int *)(0x12120330) = *(volatile unsigned int *)(0x12103110);
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*(volatile unsigned int *)(0x12120334) = *(volatile unsigned int *)(0x12103100);
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*(volatile unsigned int *)(0x12101020) = 0x0; //switch back to channel0
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}
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//DDR SIZE register
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*(volatile unsigned int *)(0x12120338) = *(volatile unsigned int *)(0x120200c0);
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*(volatile unsigned int *)(0x12040000) = 'n';
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// enable io_retention_en
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*(volatile unsigned int *)(0x120f0008) = 0x10;
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str_delay_us(50);
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__asm__ volatile("dsb sy");
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__asm__ volatile("isb");
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//entry standby
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*(volatile unsigned int *)(0x120f0010) = (*(volatile unsigned int *)(0x120f0010)) | 0x1; //bit0 start_standby;bit1 start_powerdown
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*(volatile unsigned int *)(0x12040000) = 'd';
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while(1);
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}
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