411 lines
11 KiB
Plaintext
411 lines
11 KiB
Plaintext
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LIST "KZM9G low-level initialization routine."
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LIST "Adapted from u-boot KZM9G support code."
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LIST "Copyright (C) 2013 Ulrich Hecht"
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LIST "This program is free software; you can redistribute it and/or modify"
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LIST "it under the terms of the GNU General Public License version 2 as"
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LIST "published by the Free Software Foundation."
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LIST "This program is distributed in the hope that it will be useful,"
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LIST "but WITHOUT ANY WARRANTY; without even the implied warranty of"
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LIST "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the"
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LIST "GNU General Public License for more details."
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LIST "Register definitions:"
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LIST "Secure control register"
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#define LIFEC_SEC_SRC (0xE6110008)
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LIST "RWDT"
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#define RWDT_BASE (0xE6020000)
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#define RWTCSRA0 (RWDT_BASE + 0x04)
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LIST "HPB Semaphore Control Registers"
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#define HPBSCR_BASE (0xE6000000)
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#define HPBCTRL6 (HPBSCR_BASE + 0x1030)
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#define SBSC1_BASE (0xFE400000)
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#define SDCR0A (SBSC1_BASE + 0x0008)
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#define SDCR1A (SBSC1_BASE + 0x000C)
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#define SDPCRA (SBSC1_BASE + 0x0010)
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#define SDCR0SA (SBSC1_BASE + 0x0018)
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#define SDCR1SA (SBSC1_BASE + 0x001C)
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#define RTCSRA (SBSC1_BASE + 0x0020)
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#define RTCORA (SBSC1_BASE + 0x0028)
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#define RTCORHA (SBSC1_BASE + 0x002C)
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#define SDWCRC0A (SBSC1_BASE + 0x0040)
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#define SDWCRC1A (SBSC1_BASE + 0x0044)
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#define SDWCR00A (SBSC1_BASE + 0x0048)
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#define SDWCR01A (SBSC1_BASE + 0x004C)
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#define SDWCR10A (SBSC1_BASE + 0x0050)
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#define SDWCR11A (SBSC1_BASE + 0x0054)
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#define SDWCR2A (SBSC1_BASE + 0x0060)
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#define SDWCRC2A (SBSC1_BASE + 0x0064)
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#define ZQCCRA (SBSC1_BASE + 0x0068)
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#define SDMRACR0A (SBSC1_BASE + 0x0084)
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#define SDMRTMPCRA (SBSC1_BASE + 0x008C)
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#define SDMRTMPMSKA (SBSC1_BASE + 0x0094)
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#define SDGENCNTA (SBSC1_BASE + 0x009C)
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#define SDDRVCR0A (SBSC1_BASE + 0x00B4)
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#define DLLCNT0A (SBSC1_BASE + 0x0354)
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#define SDMRA1 (0xFE500000)
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#define SDMRA2 (0xFE5C0000)
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#define SDMRA3 (0xFE504000)
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#define SBSC2_BASE (0xFB400000)
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#define SDCR0B (SBSC2_BASE + 0x0008)
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#define SDCR1B (SBSC2_BASE + 0x000C)
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#define SDPCRB (SBSC2_BASE + 0x0010)
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#define SDCR0SB (SBSC2_BASE + 0x0018)
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#define SDCR1SB (SBSC2_BASE + 0x001C)
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#define RTCSRB (SBSC2_BASE + 0x0020)
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#define RTCORB (SBSC2_BASE + 0x0028)
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#define RTCORHB (SBSC2_BASE + 0x002C)
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#define SDWCRC0B (SBSC2_BASE + 0x0040)
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#define SDWCRC1B (SBSC2_BASE + 0x0044)
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#define SDWCR00B (SBSC2_BASE + 0x0048)
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#define SDWCR01B (SBSC2_BASE + 0x004C)
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#define SDWCR10B (SBSC2_BASE + 0x0050)
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#define SDWCR11B (SBSC2_BASE + 0x0054)
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#define SDPDCR0B (SBSC2_BASE + 0x0058)
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#define SDWCR2B (SBSC2_BASE + 0x0060)
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#define SDWCRC2B (SBSC2_BASE + 0x0064)
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#define ZQCCRB (SBSC2_BASE + 0x0068)
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#define SDMRACR0B (SBSC2_BASE + 0x0084)
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#define SDMRTMPCRB (SBSC2_BASE + 0x008C)
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#define SDMRTMPMSKB (SBSC2_BASE + 0x0094)
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#define SDGENCNTB (SBSC2_BASE + 0x009C)
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#define DPHYCNT0B (SBSC2_BASE + 0x00A0)
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#define DPHYCNT1B (SBSC2_BASE + 0x00A4)
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#define DPHYCNT2B (SBSC2_BASE + 0x00A8)
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#define SDDRVCR0B (SBSC2_BASE + 0x00B4)
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#define DLLCNT0B (SBSC2_BASE + 0x0354)
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#define SDMRB1 (0xFB500000)
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#define SDMRB2 (0xFB5C0000)
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#define SDMRB3 (0xFB504000)
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#define CPG_BASE (0xE6150000)
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#define FRQCRA (CPG_BASE + 0x0000)
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#define FRQCRB (CPG_BASE + 0x0004)
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#define FRQCRD (CPG_BASE + 0x00E4)
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#define VCLKCR1 (CPG_BASE + 0x0008)
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#define VCLKCR2 (CPG_BASE + 0x000C)
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#define VCLKCR3 (CPG_BASE + 0x001C)
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#define ZBCKCR (CPG_BASE + 0x0010)
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#define FLCKCR (CPG_BASE + 0x0014)
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#define SD0CKCR (CPG_BASE + 0x0074)
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#define SD1CKCR (CPG_BASE + 0x0078)
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#define SD2CKCR (CPG_BASE + 0x007C)
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#define FSIACKCR (CPG_BASE + 0x0018)
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#define SUBCKCR (CPG_BASE + 0x0080)
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#define SPUACKCR (CPG_BASE + 0x0084)
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#define SPUVCKCR (CPG_BASE + 0x0094)
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#define MSUCKCR (CPG_BASE + 0x0088)
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#define HSICKCR (CPG_BASE + 0x008C)
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#define FSIBCKCR (CPG_BASE + 0x0090)
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#define MFCK1CR (CPG_BASE + 0x0098)
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#define MFCK2CR (CPG_BASE + 0x009C)
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#define DSITCKCR (CPG_BASE + 0x0060)
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#define DSI0PCKCR (CPG_BASE + 0x0064)
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#define DSI1PCKCR (CPG_BASE + 0x0068)
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#define DSI0PHYCR (CPG_BASE + 0x006C)
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#define DVFSCR3 (CPG_BASE + 0x0174)
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#define DVFSCR4 (CPG_BASE + 0x0178)
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#define DVFSCR5 (CPG_BASE + 0x017C)
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#define MPMODE (CPG_BASE + 0x00CC)
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#define PLLECR (CPG_BASE + 0x00D0)
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#define PLL0CR (CPG_BASE + 0x00D8)
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#define PLL1CR (CPG_BASE + 0x0028)
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#define PLL2CR (CPG_BASE + 0x002C)
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#define PLL3CR (CPG_BASE + 0x00DC)
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#define PLL0STPCR (CPG_BASE + 0x00F0)
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#define PLL1STPCR (CPG_BASE + 0x00C8)
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#define PLL2STPCR (CPG_BASE + 0x00F8)
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#define PLL3STPCR (CPG_BASE + 0x00FC)
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#define RMSTPCR0 (CPG_BASE + 0x0110)
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#define RMSTPCR1 (CPG_BASE + 0x0114)
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#define RMSTPCR2 (CPG_BASE + 0x0118)
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#define RMSTPCR3 (CPG_BASE + 0x011C)
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#define RMSTPCR4 (CPG_BASE + 0x0120)
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#define RMSTPCR5 (CPG_BASE + 0x0124)
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#define SMSTPCR0 (CPG_BASE + 0x0130)
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#define SMSTPCR2 (CPG_BASE + 0x0138)
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#define SMSTPCR3 (CPG_BASE + 0x013C)
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#define CPGXXCR4 (CPG_BASE + 0x0150)
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#define SRCR0 (CPG_BASE + 0x80A0)
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#define SRCR2 (CPG_BASE + 0x80B0)
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#define SRCR3 (CPG_BASE + 0x80A8)
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#define VREFCR (CPG_BASE + 0x00EC)
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#define PCLKCR (CPG_BASE + 0x1020)
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#define PORT32CR (0xE6051020)
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#define PORT33CR (0xE6051021)
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#define PORT34CR (0xE6051022)
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#define PORT35CR (0xE6051023)
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LIST "DRAM initialization code:"
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EW RWTCSRA0, 0xA507
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ED_AND LIFEC_SEC_SRC, 0xFFFF7FFF
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ED_AND SMSTPCR3,0xFFFF7FFF
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ED_AND SRCR3, 0xFFFF7FFF
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ED_AND SMSTPCR2,0xFFFBFFFF
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ED_AND SRCR2, 0xFFFBFFFF
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ED PLLECR, 0x00000000
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WAIT_MASK PLLECR, 0x00000F00, 0x00000000
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WAIT_MASK FRQCRB, 0x80000000, 0x00000000
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ED PLL0CR, 0x2D000000
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ED PLL1CR, 0x17100000
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ED FRQCRB, 0x96235880
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WAIT_MASK FRQCRB, 0x80000000, 0x00000000
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ED FLCKCR, 0x0000000B
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ED_AND SMSTPCR0, 0xFFFFFFFD
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ED_AND SRCR0, 0xFFFFFFFD
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ED 0xE6001628, 0x514
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ED 0xE6001648, 0x514
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ED 0xE6001658, 0x514
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ED 0xE6001678, 0x514
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ED DVFSCR4, 0x00092000
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ED DVFSCR5, 0x000000DC
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ED PLLECR, 0x00000000
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WAIT_MASK PLLECR, 0x00000F00, 0x00000000
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ED FRQCRA, 0x0012453C
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ED FRQCRB, 0x80431350
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WAIT_MASK FRQCRB, 0x80000000, 0x00000000
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ED FRQCRD, 0x00000B0B
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WAIT_MASK FRQCRD, 0x80000000, 0x00000000
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ED PCLKCR, 0x00000003
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ED VCLKCR1, 0x0000012F
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ED VCLKCR2, 0x00000119
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ED VCLKCR3, 0x00000119
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ED ZBCKCR, 0x00000002
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ED FLCKCR, 0x00000005
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ED SD0CKCR, 0x00000080
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ED SD1CKCR, 0x00000080
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ED SD2CKCR, 0x00000080
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ED FSIACKCR, 0x0000003F
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ED FSIBCKCR, 0x0000003F
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ED SUBCKCR, 0x00000080
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ED SPUACKCR, 0x0000000B
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ED SPUVCKCR, 0x0000000B
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ED MSUCKCR, 0x0000013F
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ED HSICKCR, 0x00000080
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ED MFCK1CR, 0x0000003F
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ED MFCK2CR, 0x0000003F
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ED DSITCKCR, 0x00000107
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ED DSI0PCKCR, 0x00000313
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ED DSI1PCKCR, 0x0000130D
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ED DSI0PHYCR, 0x2A800E0E
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ED PLL0CR, 0x1E000000
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ED PLL0CR, 0x2D000000
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ED PLL1CR, 0x17100000
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ED PLL2CR, 0x27000080
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ED PLL3CR, 0x1D000000
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ED PLL0STPCR, 0x00080000
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ED PLL1STPCR, 0x000120C0
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ED PLL2STPCR, 0x00012000
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ED PLL3STPCR, 0x00000030
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ED PLLECR, 0x0000000B
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WAIT_MASK PLLECR, 0x00000B00, 0x00000B00
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ED DVFSCR3, 0x000120F0
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ED MPMODE, 0x00000020
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ED VREFCR, 0x0000028A
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ED RMSTPCR0, 0xE4628087
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ED RMSTPCR1, 0xFFFFFFFF
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ED RMSTPCR2, 0x53FFFFFF
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ED RMSTPCR3, 0xFFFFFFFF
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ED RMSTPCR4, 0x00800D3D
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ED RMSTPCR5, 0xFFFFF3FF
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ED SMSTPCR2, 0x00000000
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ED SRCR2, 0x00040000
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ED_AND PLLECR, 0xFFFFFFF7
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WAIT_MASK PLLECR, 0x00000800, 0x00000000
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LIST "set SBSC operational"
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ED HPBCTRL6, 0x00000001
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WAIT_MASK HPBCTRL6, 0x00000001, 0x00000001
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LIST "set SBSC operating frequency"
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ED FRQCRD, 0x00001414
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WAIT_MASK FRQCRD, 0x80000000, 0x00000000
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ED PLL3CR, 0x1D000000
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ED_OR PLLECR, 0x00000008
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WAIT_MASK PLLECR, 0x00000800, 0x00000800
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LIST "enable DLL oscillation in DDRPHY"
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ED_OR DLLCNT0A, 0x00000002
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LIST "wait >= 100 ns"
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ED SDGENCNTA, 0x00000005
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WAIT_MASK SDGENCNTA, 0xFFFFFFFF, 0x00000000
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LIST "target LPDDR2 device settings"
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ED SDCR0A, 0xACC90159
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ED SDCR1A, 0x00010059
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ED SDWCRC0A, 0x50874114
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ED SDWCRC1A, 0x33199B37
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ED SDWCRC2A, 0x008F2313
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ED SDWCR00A, 0x31020707
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ED SDWCR01A, 0x0017040A
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ED SDWCR10A, 0x31020707
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ED SDWCR11A, 0x0017040A
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ED SDDRVCR0A, 0x055557ff
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ED SDWCR2A, 0x30000000
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LIST "drive CKE high"
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ED_OR SDPCRA, 0x00000080
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WAIT_MASK SDPCRA, 0x00000080, 0x00000080
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LIST "wait >= 200 us"
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ED SDGENCNTA, 0x00002710
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WAIT_MASK SDGENCNTA, 0xFFFFFFFF, 0x00000000
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LIST "issue reset command to LPDDR2 device"
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ED SDMRACR0A, 0x0000003F
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ED SDMRA1, 0x00000000
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LIST "wait >= 10 (or 1) us (docs inconsistent)"
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ED SDGENCNTA, 0x000001F4
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WAIT_MASK SDGENCNTA, 0xFFFFFFFF, 0x00000000
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LIST "MRW ZS initialization calibration command"
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ED SDMRACR0A, 0x0000FF0A
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ED SDMRA3, 0x00000000
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LIST "wait >= 1 us"
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ED SDGENCNTA, 0x00000032
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WAIT_MASK SDGENCNTA, 0xFFFFFFFF, 0x00000000
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LIST "specify operating mode in LPDDR2"
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ED SDMRACR0A, 0x00002201
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ED SDMRA1, 0x00000000
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ED SDMRACR0A, 0x00000402
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ED SDMRA1, 0x00000000
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ED SDMRACR0A, 0x00000203
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ED SDMRA1, 0x00000000
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LIST "initialize DDR interface"
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ED SDMRA2, 0x00000000
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LIST "temperature sensor control"
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ED SDMRTMPCRA, 0x88800004
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ED SDMRTMPMSKA,0x00000004
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LIST "auto-refreshing control"
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ED RTCORA, 0xA55A0032
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ED RTCORHA, 0xA55A000C
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ED RTCSRA, 0xA55A2048
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ED_OR SDCR0A, 0x00000800
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ED_OR SDCR1A, 0x00000400
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LIST "auto ZQ calibration control"
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ED ZQCCRA, 0xFFF20000
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|
|
ED_OR DLLCNT0B, 0x00000002
|
||
|
|
ED SDGENCNTB, 0x00000005
|
||
|
|
WAIT_MASK SDGENCNTB, 0xFFFFFFFF, 0x00000000
|
||
|
|
|
||
|
|
ED SDCR0B, 0xACC90159
|
||
|
|
ED SDCR1B, 0x00010059
|
||
|
|
ED SDWCRC0B, 0x50874114
|
||
|
|
ED SDWCRC1B, 0x33199B37
|
||
|
|
ED SDWCRC2B, 0x008F2313
|
||
|
|
ED SDWCR00B, 0x31020707
|
||
|
|
ED SDWCR01B, 0x0017040A
|
||
|
|
ED SDWCR10B, 0x31020707
|
||
|
|
ED SDWCR11B, 0x0017040A
|
||
|
|
ED SDDRVCR0B, 0x055557ff
|
||
|
|
ED SDWCR2B, 0x30000000
|
||
|
|
ED_OR SDPCRB, 0x00000080
|
||
|
|
WAIT_MASK SDPCRB, 0x00000080, 0x00000080
|
||
|
|
|
||
|
|
ED SDGENCNTB, 0x00002710
|
||
|
|
WAIT_MASK SDGENCNTB, 0xFFFFFFFF, 0x00000000
|
||
|
|
ED SDMRACR0B, 0x0000003F
|
||
|
|
|
||
|
|
LIST "upstream u-boot writes to SDMRA1A for both SBSC 1 and 2, which does"
|
||
|
|
LIST "not seem to make a lot of sense..."
|
||
|
|
ED SDMRB1, 0x00000000
|
||
|
|
|
||
|
|
ED SDGENCNTB, 0x000001F4
|
||
|
|
WAIT_MASK SDGENCNTB, 0xFFFFFFFF, 0x00000000
|
||
|
|
|
||
|
|
ED SDMRACR0B, 0x0000FF0A
|
||
|
|
ED SDMRB3, 0x00000000
|
||
|
|
ED SDGENCNTB, 0x00000032
|
||
|
|
WAIT_MASK SDGENCNTB, 0xFFFFFFFF, 0x00000000
|
||
|
|
|
||
|
|
ED SDMRACR0B, 0x00002201
|
||
|
|
ED SDMRB1, 0x00000000
|
||
|
|
ED SDMRACR0B, 0x00000402
|
||
|
|
ED SDMRB1, 0x00000000
|
||
|
|
ED SDMRACR0B, 0x00000203
|
||
|
|
ED SDMRB1, 0x00000000
|
||
|
|
ED SDMRB2, 0x00000000
|
||
|
|
ED SDMRTMPCRB, 0x88800004
|
||
|
|
ED SDMRTMPMSKB, 0x00000004
|
||
|
|
ED RTCORB, 0xA55A0032
|
||
|
|
ED RTCORHB, 0xA55A000C
|
||
|
|
ED RTCSRB, 0xA55A2048
|
||
|
|
ED_OR SDCR0B, 0x00000800
|
||
|
|
ED_OR SDCR1B, 0x00000400
|
||
|
|
ED ZQCCRB, 0xFFF20000
|
||
|
|
ED_OR SDPDCR0B, 0x00030000
|
||
|
|
ED DPHYCNT1B, 0xA5390000
|
||
|
|
ED DPHYCNT0B, 0x00001200
|
||
|
|
ED DPHYCNT1B, 0x07CE0000
|
||
|
|
ED DPHYCNT0B, 0x00001247
|
||
|
|
WAIT_MASK DPHYCNT2B, 0xFFFFFFFF, 0x07CE0000
|
||
|
|
|
||
|
|
ED_AND SDPDCR0B, 0xFFFCFFFF
|
||
|
|
|
||
|
|
ED FRQCRD, 0x00000B0B
|
||
|
|
WAIT_MASK FRQCRD, 0x80000000, 0x00000000
|
||
|
|
|
||
|
|
ED CPGXXCR4, 0xfffffffc
|
||
|
|
|
||
|
|
LIST "Setup SCIF4 / workaround"
|
||
|
|
EB PORT32CR, 0x12
|
||
|
|
EB PORT33CR, 0x22
|
||
|
|
EB PORT34CR, 0x12
|
||
|
|
EB PORT35CR, 0x22
|
||
|
|
|
||
|
|
EW 0xE6C80000, 0
|
||
|
|
EB 0xE6C80004, 0x19
|
||
|
|
EW 0xE6C80008, 0x0030
|
||
|
|
EW 0xE6C80018, 0
|
||
|
|
EW 0xE6C80030, 0x0014
|
||
|
|
|
||
|
|
LIST "Magic to avoid hangs and corruption on DRAM writes."
|
||
|
|
|
||
|
|
LIST "It has been observed that the system would most often hang while"
|
||
|
|
LIST "decompressing the kernel, and if it didn't it would always write"
|
||
|
|
LIST "a corrupt image to DRAM."
|
||
|
|
LIST "This problem does not occur in u-boot, and the reason is that"
|
||
|
|
LIST "u-boot performs an additional cache invalidation after setting up"
|
||
|
|
LIST "the DRAM controller. Such an invalidation should not be necessary at"
|
||
|
|
LIST "this point, and attempts at removing parts of the routine to arrive"
|
||
|
|
LIST "at the minimal snippet of code necessary to avoid the DRAM stability"
|
||
|
|
LIST "problem yielded the following:"
|
||
|
|
|
||
|
|
MRC p15, 0, r0, c1, c0, 0
|
||
|
|
MCR p15, 0, r0, c1, c0, 0
|