diff options
Diffstat (limited to 'arch/arm/mach-shmobile/include/mach/head-kzm9g.txt')
| -rw-r--r-- | arch/arm/mach-shmobile/include/mach/head-kzm9g.txt | 410 |
1 files changed, 410 insertions, 0 deletions
diff --git a/arch/arm/mach-shmobile/include/mach/head-kzm9g.txt b/arch/arm/mach-shmobile/include/mach/head-kzm9g.txt new file mode 100644 index 000000000000..9531f46a822a --- /dev/null +++ b/arch/arm/mach-shmobile/include/mach/head-kzm9g.txt @@ -0,0 +1,410 @@ +LIST "KZM9G low-level initialization routine." +LIST "Adapted from u-boot KZM9G support code." + +LIST "Copyright (C) 2013 Ulrich Hecht" + +LIST "This program is free software; you can redistribute it and/or modify" +LIST "it under the terms of the GNU General Public License version 2 as" +LIST "published by the Free Software Foundation." + +LIST "This program is distributed in the hope that it will be useful," +LIST "but WITHOUT ANY WARRANTY; without even the implied warranty of" +LIST "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the" +LIST "GNU General Public License for more details." + + +LIST "Register definitions:" + +LIST "Secure control register" +#define LIFEC_SEC_SRC (0xE6110008) + +LIST "RWDT" +#define RWDT_BASE (0xE6020000) +#define RWTCSRA0 (RWDT_BASE + 0x04) + +LIST "HPB Semaphore Control Registers" +#define HPBSCR_BASE (0xE6000000) +#define HPBCTRL6 (HPBSCR_BASE + 0x1030) + +#define SBSC1_BASE (0xFE400000) +#define SDCR0A (SBSC1_BASE + 0x0008) +#define SDCR1A (SBSC1_BASE + 0x000C) +#define SDPCRA (SBSC1_BASE + 0x0010) +#define SDCR0SA (SBSC1_BASE + 0x0018) +#define SDCR1SA (SBSC1_BASE + 0x001C) +#define RTCSRA (SBSC1_BASE + 0x0020) +#define RTCORA (SBSC1_BASE + 0x0028) +#define RTCORHA (SBSC1_BASE + 0x002C) +#define SDWCRC0A (SBSC1_BASE + 0x0040) +#define SDWCRC1A (SBSC1_BASE + 0x0044) +#define SDWCR00A (SBSC1_BASE + 0x0048) +#define SDWCR01A (SBSC1_BASE + 0x004C) +#define SDWCR10A (SBSC1_BASE + 0x0050) +#define SDWCR11A (SBSC1_BASE + 0x0054) +#define SDWCR2A (SBSC1_BASE + 0x0060) +#define SDWCRC2A (SBSC1_BASE + 0x0064) +#define ZQCCRA (SBSC1_BASE + 0x0068) +#define SDMRACR0A (SBSC1_BASE + 0x0084) +#define SDMRTMPCRA (SBSC1_BASE + 0x008C) +#define SDMRTMPMSKA (SBSC1_BASE + 0x0094) +#define SDGENCNTA (SBSC1_BASE + 0x009C) +#define SDDRVCR0A (SBSC1_BASE + 0x00B4) +#define DLLCNT0A (SBSC1_BASE + 0x0354) + +#define SDMRA1 (0xFE500000) +#define SDMRA2 (0xFE5C0000) +#define SDMRA3 (0xFE504000) + +#define SBSC2_BASE (0xFB400000) +#define SDCR0B (SBSC2_BASE + 0x0008) +#define SDCR1B (SBSC2_BASE + 0x000C) +#define SDPCRB (SBSC2_BASE + 0x0010) +#define SDCR0SB (SBSC2_BASE + 0x0018) +#define SDCR1SB (SBSC2_BASE + 0x001C) +#define RTCSRB (SBSC2_BASE + 0x0020) +#define RTCORB (SBSC2_BASE + 0x0028) +#define RTCORHB (SBSC2_BASE + 0x002C) +#define SDWCRC0B (SBSC2_BASE + 0x0040) +#define SDWCRC1B (SBSC2_BASE + 0x0044) +#define SDWCR00B (SBSC2_BASE + 0x0048) +#define SDWCR01B (SBSC2_BASE + 0x004C) +#define SDWCR10B (SBSC2_BASE + 0x0050) +#define SDWCR11B (SBSC2_BASE + 0x0054) +#define SDPDCR0B (SBSC2_BASE + 0x0058) +#define SDWCR2B (SBSC2_BASE + 0x0060) +#define SDWCRC2B (SBSC2_BASE + 0x0064) +#define ZQCCRB (SBSC2_BASE + 0x0068) +#define SDMRACR0B (SBSC2_BASE + 0x0084) +#define SDMRTMPCRB (SBSC2_BASE + 0x008C) +#define SDMRTMPMSKB (SBSC2_BASE + 0x0094) +#define SDGENCNTB (SBSC2_BASE + 0x009C) +#define DPHYCNT0B (SBSC2_BASE + 0x00A0) +#define DPHYCNT1B (SBSC2_BASE + 0x00A4) +#define DPHYCNT2B (SBSC2_BASE + 0x00A8) +#define SDDRVCR0B (SBSC2_BASE + 0x00B4) +#define DLLCNT0B (SBSC2_BASE + 0x0354) + +#define SDMRB1 (0xFB500000) +#define SDMRB2 (0xFB5C0000) +#define SDMRB3 (0xFB504000) + +#define CPG_BASE (0xE6150000) +#define FRQCRA (CPG_BASE + 0x0000) +#define FRQCRB (CPG_BASE + 0x0004) +#define FRQCRD (CPG_BASE + 0x00E4) +#define VCLKCR1 (CPG_BASE + 0x0008) +#define VCLKCR2 (CPG_BASE + 0x000C) +#define VCLKCR3 (CPG_BASE + 0x001C) +#define ZBCKCR (CPG_BASE + 0x0010) +#define FLCKCR (CPG_BASE + 0x0014) +#define SD0CKCR (CPG_BASE + 0x0074) +#define SD1CKCR (CPG_BASE + 0x0078) +#define SD2CKCR (CPG_BASE + 0x007C) +#define FSIACKCR (CPG_BASE + 0x0018) +#define SUBCKCR (CPG_BASE + 0x0080) +#define SPUACKCR (CPG_BASE + 0x0084) +#define SPUVCKCR (CPG_BASE + 0x0094) +#define MSUCKCR (CPG_BASE + 0x0088) +#define HSICKCR (CPG_BASE + 0x008C) +#define FSIBCKCR (CPG_BASE + 0x0090) +#define MFCK1CR (CPG_BASE + 0x0098) +#define MFCK2CR (CPG_BASE + 0x009C) +#define DSITCKCR (CPG_BASE + 0x0060) +#define DSI0PCKCR (CPG_BASE + 0x0064) +#define DSI1PCKCR (CPG_BASE + 0x0068) +#define DSI0PHYCR (CPG_BASE + 0x006C) +#define DVFSCR3 (CPG_BASE + 0x0174) +#define DVFSCR4 (CPG_BASE + 0x0178) +#define DVFSCR5 (CPG_BASE + 0x017C) +#define MPMODE (CPG_BASE + 0x00CC) + +#define PLLECR (CPG_BASE + 0x00D0) +#define PLL0CR (CPG_BASE + 0x00D8) +#define PLL1CR (CPG_BASE + 0x0028) +#define PLL2CR (CPG_BASE + 0x002C) +#define PLL3CR (CPG_BASE + 0x00DC) +#define PLL0STPCR (CPG_BASE + 0x00F0) +#define PLL1STPCR (CPG_BASE + 0x00C8) +#define PLL2STPCR (CPG_BASE + 0x00F8) +#define PLL3STPCR (CPG_BASE + 0x00FC) +#define RMSTPCR0 (CPG_BASE + 0x0110) +#define RMSTPCR1 (CPG_BASE + 0x0114) +#define RMSTPCR2 (CPG_BASE + 0x0118) +#define RMSTPCR3 (CPG_BASE + 0x011C) +#define RMSTPCR4 (CPG_BASE + 0x0120) +#define RMSTPCR5 (CPG_BASE + 0x0124) +#define SMSTPCR0 (CPG_BASE + 0x0130) +#define SMSTPCR2 (CPG_BASE + 0x0138) +#define SMSTPCR3 (CPG_BASE + 0x013C) +#define CPGXXCR4 (CPG_BASE + 0x0150) +#define SRCR0 (CPG_BASE + 0x80A0) +#define SRCR2 (CPG_BASE + 0x80B0) +#define SRCR3 (CPG_BASE + 0x80A8) +#define VREFCR (CPG_BASE + 0x00EC) +#define PCLKCR (CPG_BASE + 0x1020) + +#define PORT32CR (0xE6051020) +#define PORT33CR (0xE6051021) +#define PORT34CR (0xE6051022) +#define PORT35CR (0xE6051023) + +LIST "DRAM initialization code:" + +EW RWTCSRA0, 0xA507 + +ED_AND LIFEC_SEC_SRC, 0xFFFF7FFF + +ED_AND SMSTPCR3,0xFFFF7FFF +ED_AND SRCR3, 0xFFFF7FFF +ED_AND SMSTPCR2,0xFFFBFFFF +ED_AND SRCR2, 0xFFFBFFFF +ED PLLECR, 0x00000000 + +WAIT_MASK PLLECR, 0x00000F00, 0x00000000 +WAIT_MASK FRQCRB, 0x80000000, 0x00000000 + +ED PLL0CR, 0x2D000000 +ED PLL1CR, 0x17100000 +ED FRQCRB, 0x96235880 +WAIT_MASK FRQCRB, 0x80000000, 0x00000000 + +ED FLCKCR, 0x0000000B +ED_AND SMSTPCR0, 0xFFFFFFFD + +ED_AND SRCR0, 0xFFFFFFFD +ED 0xE6001628, 0x514 +ED 0xE6001648, 0x514 +ED 0xE6001658, 0x514 +ED 0xE6001678, 0x514 + +ED DVFSCR4, 0x00092000 +ED DVFSCR5, 0x000000DC +ED PLLECR, 0x00000000 +WAIT_MASK PLLECR, 0x00000F00, 0x00000000 + +ED FRQCRA, 0x0012453C +ED FRQCRB, 0x80431350 +WAIT_MASK FRQCRB, 0x80000000, 0x00000000 +ED FRQCRD, 0x00000B0B +WAIT_MASK FRQCRD, 0x80000000, 0x00000000 + +ED PCLKCR, 0x00000003 +ED VCLKCR1, 0x0000012F +ED VCLKCR2, 0x00000119 +ED VCLKCR3, 0x00000119 +ED ZBCKCR, 0x00000002 +ED FLCKCR, 0x00000005 +ED SD0CKCR, 0x00000080 +ED SD1CKCR, 0x00000080 +ED SD2CKCR, 0x00000080 +ED FSIACKCR, 0x0000003F +ED FSIBCKCR, 0x0000003F +ED SUBCKCR, 0x00000080 +ED SPUACKCR, 0x0000000B +ED SPUVCKCR, 0x0000000B +ED MSUCKCR, 0x0000013F +ED HSICKCR, 0x00000080 +ED MFCK1CR, 0x0000003F +ED MFCK2CR, 0x0000003F +ED DSITCKCR, 0x00000107 +ED DSI0PCKCR, 0x00000313 +ED DSI1PCKCR, 0x0000130D +ED DSI0PHYCR, 0x2A800E0E +ED PLL0CR, 0x1E000000 +ED PLL0CR, 0x2D000000 +ED PLL1CR, 0x17100000 +ED PLL2CR, 0x27000080 +ED PLL3CR, 0x1D000000 +ED PLL0STPCR, 0x00080000 +ED PLL1STPCR, 0x000120C0 +ED PLL2STPCR, 0x00012000 +ED PLL3STPCR, 0x00000030 +ED PLLECR, 0x0000000B +WAIT_MASK PLLECR, 0x00000B00, 0x00000B00 + +ED DVFSCR3, 0x000120F0 +ED MPMODE, 0x00000020 +ED VREFCR, 0x0000028A +ED RMSTPCR0, 0xE4628087 +ED RMSTPCR1, 0xFFFFFFFF +ED RMSTPCR2, 0x53FFFFFF +ED RMSTPCR3, 0xFFFFFFFF +ED RMSTPCR4, 0x00800D3D +ED RMSTPCR5, 0xFFFFF3FF +ED SMSTPCR2, 0x00000000 +ED SRCR2, 0x00040000 +ED_AND PLLECR, 0xFFFFFFF7 +WAIT_MASK PLLECR, 0x00000800, 0x00000000 + +LIST "set SBSC operational" +ED HPBCTRL6, 0x00000001 +WAIT_MASK HPBCTRL6, 0x00000001, 0x00000001 + +LIST "set SBSC operating frequency" +ED FRQCRD, 0x00001414 +WAIT_MASK FRQCRD, 0x80000000, 0x00000000 +ED PLL3CR, 0x1D000000 +ED_OR PLLECR, 0x00000008 +WAIT_MASK PLLECR, 0x00000800, 0x00000800 + +LIST "enable DLL oscillation in DDRPHY" +ED_OR DLLCNT0A, 0x00000002 + +LIST "wait >= 100 ns" +ED SDGENCNTA, 0x00000005 +WAIT_MASK SDGENCNTA, 0xFFFFFFFF, 0x00000000 + +LIST "target LPDDR2 device settings" +ED SDCR0A, 0xACC90159 +ED SDCR1A, 0x00010059 +ED SDWCRC0A, 0x50874114 +ED SDWCRC1A, 0x33199B37 +ED SDWCRC2A, 0x008F2313 +ED SDWCR00A, 0x31020707 +ED SDWCR01A, 0x0017040A +ED SDWCR10A, 0x31020707 +ED SDWCR11A, 0x0017040A + +ED SDDRVCR0A, 0x055557ff + +ED SDWCR2A, 0x30000000 + +LIST "drive CKE high" +ED_OR SDPCRA, 0x00000080 +WAIT_MASK SDPCRA, 0x00000080, 0x00000080 + +LIST "wait >= 200 us" +ED SDGENCNTA, 0x00002710 +WAIT_MASK SDGENCNTA, 0xFFFFFFFF, 0x00000000 + +LIST "issue reset command to LPDDR2 device" +ED SDMRACR0A, 0x0000003F +ED SDMRA1, 0x00000000 + +LIST "wait >= 10 (or 1) us (docs inconsistent)" +ED SDGENCNTA, 0x000001F4 +WAIT_MASK SDGENCNTA, 0xFFFFFFFF, 0x00000000 + +LIST "MRW ZS initialization calibration command" +ED SDMRACR0A, 0x0000FF0A +ED SDMRA3, 0x00000000 + +LIST "wait >= 1 us" +ED SDGENCNTA, 0x00000032 +WAIT_MASK SDGENCNTA, 0xFFFFFFFF, 0x00000000 + +LIST "specify operating mode in LPDDR2" +ED SDMRACR0A, 0x00002201 +ED SDMRA1, 0x00000000 +ED SDMRACR0A, 0x00000402 +ED SDMRA1, 0x00000000 +ED SDMRACR0A, 0x00000203 +ED SDMRA1, 0x00000000 + +LIST "initialize DDR interface" +ED SDMRA2, 0x00000000 + +LIST "temperature sensor control" +ED SDMRTMPCRA, 0x88800004 +ED SDMRTMPMSKA,0x00000004 + +LIST "auto-refreshing control" +ED RTCORA, 0xA55A0032 +ED RTCORHA, 0xA55A000C +ED RTCSRA, 0xA55A2048 + +ED_OR SDCR0A, 0x00000800 +ED_OR SDCR1A, 0x00000400 + +LIST "auto ZQ calibration control" +ED ZQCCRA, 0xFFF20000 + +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 |