| /* SPDX-License-Identifier: GPL-2.0+ */ |
| /* |
| * Copyright (C) 2011, 2012 Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> |
| * Copyright (C) 2011, 2012 Renesas Solutions Corp. |
| */ |
| #include <config.h> |
| #include <asm/processor.h> |
| #include <asm/macro.h> |
| |
| #include <asm/processor.h> |
| |
| .global lowlevel_init |
| |
| .text |
| .align 2 |
| |
| lowlevel_init: |
| |
| /* WDT */ |
| write32 WDTCSR_A, WDTCSR_D |
| |
| /* MMU */ |
| write32 MMUCR_A, MMUCR_D |
| |
| write32 FRQCR2_A, FRQCR2_D |
| write32 FRQCR0_A, FRQCR0_D |
| |
| write32 CS0CTRL_A, CS0CTRL_D |
| write32 CS1CTRL_A, CS1CTRL_D |
| write32 CS0CTRL2_A, CS0CTRL2_D |
| |
| write32 CSPWCR0_A, CSPWCR0_D |
| write32 CSPWCR1_A, CSPWCR1_D |
| write32 CS1GDST_A, CS1GDST_D |
| |
| # clock mode check |
| mov.l MODEMR, r1 |
| mov.l @r1, r0 |
| and #6, r0 /* Check 1 and 2 bit.*/ |
| cmp/eq #2, r0 /* 0x02 is 533Mhz mode */ |
| bt init_lbsc_533 |
| |
| init_lbsc_400: |
| |
| write32 CSWCR0_A, CSWCR0_D_400 |
| write32 CSWCR1_A, CSWCR1_D |
| |
| bra init_dbsc3_400_pad |
| nop |
| |
| .align 2 |
| |
| MODEMR: .long 0xFFCC0020 |
| WDTCSR_A: .long 0xFFCC0004 |
| WDTCSR_D: .long 0xA5000000 |
| MMUCR_A: .long 0xFF000010 |
| MMUCR_D: .long 0x00000004 |
| |
| FRQCR2_A: .long 0xFFC80008 |
| FRQCR2_D: .long 0x00000000 |
| FRQCR0_A: .long 0xFFC80000 |
| FRQCR0_D: .long 0xCF000001 |
| |
| CS0CTRL_A: .long 0xFF800200 |
| CS0CTRL_D: .long 0x00000020 |
| CS1CTRL_A: .long 0xFF800204 |
| CS1CTRL_D: .long 0x00000020 |
| |
| CS0CTRL2_A: .long 0xFF800220 |
| CS0CTRL2_D: .long 0x00004000 |
| |
| CSPWCR0_A: .long 0xFF800280 |
| CSPWCR0_D: .long 0x00000000 |
| CSPWCR1_A: .long 0xFF800284 |
| CSPWCR1_D: .long 0x00000000 |
| CS1GDST_A: .long 0xFF8002C0 |
| CS1GDST_D: .long 0x00000011 |
| |
| init_lbsc_533: |
| |
| write32 CSWCR0_A, CSWCR0_D_533 |
| write32 CSWCR1_A, CSWCR1_D |
| |
| bra init_dbsc3_533_pad |
| nop |
| |
| .align 2 |
| |
| CSWCR0_A: .long 0xFF800230 |
| CSWCR0_D_533: .long 0x01120104 |
| CSWCR0_D_400: .long 0x02120114 |
| CSWCR1_A: .long 0xFF800234 |
| CSWCR1_D: .long 0x077F077F |
| |
| init_dbsc3_400_pad: |
| |
| write32 DBPDCNT3_A, DBPDCNT3_D |
| wait_timer WAIT_200US_400 |
| |
| write32 DBPDCNT0_A, DBPDCNT0_D_400 |
| write32 DBPDCNT3_A, DBPDCNT3_D0 |
| write32 DBPDCNT1_A, DBPDCNT1_D |
| |
| write32 DBPDCNT3_A, DBPDCNT3_D1 |
| wait_timer WAIT_32MCLK |
| |
| write32 DBPDCNT3_A, DBPDCNT3_D2 |
| wait_timer WAIT_100US_400 |
| |
| write32 DBPDCNT3_A, DBPDCNT3_D3 |
| wait_timer WAIT_16MCLK |
| |
| write32 DBPDCNT3_A, DBPDCNT3_D4 |
| wait_timer WAIT_200US_400 |
| |
| write32 DBPDCNT3_A, DBPDCNT3_D5 |
| wait_timer WAIT_1MCLK |
| |
| write32 DBPDCNT3_A, DBPDCNT3_D6 |
| wait_timer WAIT_10KMCLK |
| |
| bra init_dbsc3_ctrl_400 |
| nop |
| |
| .align 2 |
| |
| init_dbsc3_533_pad: |
| |
| write32 DBPDCNT3_A, DBPDCNT3_D |
| wait_timer WAIT_200US_533 |
| |
| write32 DBPDCNT0_A, DBPDCNT0_D_533 |
| write32 DBPDCNT3_A, DBPDCNT3_D0 |
| write32 DBPDCNT1_A, DBPDCNT1_D |
| |
| write32 DBPDCNT3_A, DBPDCNT3_D1 |
| wait_timer WAIT_32MCLK |
| |
| write32 DBPDCNT3_A, DBPDCNT3_D2 |
| wait_timer WAIT_100US_533 |
| |
| write32 DBPDCNT3_A, DBPDCNT3_D3 |
| wait_timer WAIT_16MCLK |
| |
| write32 DBPDCNT3_A, DBPDCNT3_D4 |
| wait_timer WAIT_200US_533 |
| |
| write32 DBPDCNT3_A, DBPDCNT3_D5 |
| wait_timer WAIT_1MCLK |
| |
| write32 DBPDCNT3_A, DBPDCNT3_D6 |
| wait_timer WAIT_10KMCLK |
| |
| bra init_dbsc3_ctrl_533 |
| nop |
| |
| .align 2 |
| |
| WAIT_200US_400: .long 40000 |
| WAIT_200US_533: .long 53300 |
| WAIT_100US_400: .long 20000 |
| WAIT_100US_533: .long 26650 |
| WAIT_32MCLK: .long 32 |
| WAIT_16MCLK: .long 16 |
| WAIT_1MCLK: .long 1 |
| WAIT_10KMCLK: .long 10000 |
| |
| DBPDCNT0_A: .long 0xFE800200 |
| DBPDCNT0_D_533: .long 0x00010245 |
| DBPDCNT0_D_400: .long 0x00010235 |
| DBPDCNT1_A: .long 0xFE800204 |
| DBPDCNT1_D: .long 0x00000014 |
| DBPDCNT3_A: .long 0xFE80020C |
| DBPDCNT3_D: .long 0x80000000 |
| DBPDCNT3_D0: .long 0x800F0000 |
| DBPDCNT3_D1: .long 0x800F1000 |
| DBPDCNT3_D2: .long 0x820F1000 |
| DBPDCNT3_D3: .long 0x860F1000 |
| DBPDCNT3_D4: .long 0x870F1000 |
| DBPDCNT3_D5: .long 0x870F3000 |
| DBPDCNT3_D6: .long 0x870F7000 |
| |
| init_dbsc3_ctrl_400: |
| |
| write32 DBKIND_A, DBKIND_D |
| write32 DBCONF_A, DBCONF_D |
| |
| write32 DBTR0_A, DBTR0_D_400 |
| write32 DBTR1_A, DBTR1_D_400 |
| write32 DBTR2_A, DBTR2_D |
| write32 DBTR3_A, DBTR3_D_400 |
| write32 DBTR4_A, DBTR4_D_400 |
| write32 DBTR5_A, DBTR5_D_400 |
| write32 DBTR6_A, DBTR6_D_400 |
| write32 DBTR7_A, DBTR7_D |
| write32 DBTR8_A, DBTR8_D_400 |
| write32 DBTR9_A, DBTR9_D |
| write32 DBTR10_A, DBTR10_D_400 |
| write32 DBTR11_A, DBTR11_D |
| write32 DBTR12_A, DBTR12_D_400 |
| write32 DBTR13_A, DBTR13_D_400 |
| write32 DBTR14_A, DBTR14_D |
| write32 DBTR15_A, DBTR15_D |
| write32 DBTR16_A, DBTR16_D_400 |
| write32 DBTR17_A, DBTR17_D_400 |
| write32 DBTR18_A, DBTR18_D_400 |
| |
| write32 DBBL_A, DBBL_D |
| write32 DBRNK0_A, DBRNK0_D |
| |
| write32 DBCMD_A, DBCMD_D0_400 |
| write32 DBCMD_A, DBCMD_D1 |
| write32 DBCMD_A, DBCMD_D2 |
| write32 DBCMD_A, DBCMD_D3 |
| write32 DBCMD_A, DBCMD_D4 |
| write32 DBCMD_A, DBCMD_D5_400 |
| write32 DBCMD_A, DBCMD_D6 |
| write32 DBCMD_A, DBCMD_D7 |
| write32 DBCMD_A, DBCMD_D8 |
| write32 DBCMD_A, DBCMD_D9_400 |
| write32 DBCMD_A, DBCMD_D10 |
| write32 DBCMD_A, DBCMD_D11 |
| write32 DBCMD_A, DBCMD_D12 |
| |
| write32 DBRFCNF0_A, DBRFCNF0_D |
| write32 DBRFCNF1_A, DBRFCNF1_D_400 |
| write32 DBRFCNF2_A, DBRFCNF2_D |
| write32 DBRFEN_A, DBRFEN_D |
| write32 DBACEN_A, DBACEN_D |
| write32 DBACEN_A, DBACEN_D |
| |
| /* Dummy read */ |
| mov.l DBWAIT_A, r1 |
| synco |
| mov.l @r1, r0 |
| synco |
| |
| /* Dummy read */ |
| mov.l SDRAM_A, r1 |
| synco |
| mov.l @r1, r0 |
| synco |
| |
| /* need sleep 186A0 */ |
| |
| bra finish_init_sh7734 |
| nop |
| |
| .align 2 |
| |
| init_dbsc3_ctrl_533: |
| |
| write32 DBKIND_A, DBKIND_D |
| write32 DBCONF_A, DBCONF_D |
| |
| write32 DBTR0_A, DBTR0_D_533 |
| write32 DBTR1_A, DBTR1_D_533 |
| write32 DBTR2_A, DBTR2_D |
| write32 DBTR3_A, DBTR3_D_533 |
| write32 DBTR4_A, DBTR4_D_533 |
| write32 DBTR5_A, DBTR5_D_533 |
| write32 DBTR6_A, DBTR6_D_533 |
| write32 DBTR7_A, DBTR7_D |
| write32 DBTR8_A, DBTR8_D_533 |
| write32 DBTR9_A, DBTR9_D |
| write32 DBTR10_A, DBTR10_D_533 |
| write32 DBTR11_A, DBTR11_D |
| write32 DBTR12_A, DBTR12_D_533 |
| write32 DBTR13_A, DBTR13_D_533 |
| write32 DBTR14_A, DBTR14_D |
| write32 DBTR15_A, DBTR15_D |
| write32 DBTR16_A, DBTR16_D_533 |
| write32 DBTR17_A, DBTR17_D_533 |
| write32 DBTR18_A, DBTR18_D_533 |
| |
| write32 DBBL_A, DBBL_D |
| write32 DBRNK0_A, DBRNK0_D |
| |
| write32 DBCMD_A, DBCMD_D0_533 |
| write32 DBCMD_A, DBCMD_D1 |
| write32 DBCMD_A, DBCMD_D2 |
| write32 DBCMD_A, DBCMD_D3 |
| write32 DBCMD_A, DBCMD_D4 |
| write32 DBCMD_A, DBCMD_D5_533 |
| write32 DBCMD_A, DBCMD_D6 |
| write32 DBCMD_A, DBCMD_D7 |
| write32 DBCMD_A, DBCMD_D8 |
| write32 DBCMD_A, DBCMD_D9_533 |
| write32 DBCMD_A, DBCMD_D10 |
| write32 DBCMD_A, DBCMD_D11 |
| write32 DBCMD_A, DBCMD_D12 |
| |
| write32 DBRFCNF0_A, DBRFCNF0_D |
| write32 DBRFCNF1_A, DBRFCNF1_D_533 |
| write32 DBRFCNF2_A, DBRFCNF2_D |
| write32 DBRFEN_A, DBRFEN_D |
| write32 DBACEN_A, DBACEN_D |
| write32 DBACEN_A, DBACEN_D |
| |
| /* Dummy read */ |
| mov.l DBWAIT_A, r1 |
| synco |
| mov.l @r1, r0 |
| synco |
| |
| /* Dummy read */ |
| mov.l SDRAM_A, r1 |
| synco |
| mov.l @r1, r0 |
| synco |
| |
| /* need sleep 186A0 */ |
| |
| bra finish_init_sh7734 |
| nop |
| |
| .align 2 |
| |
| DBKIND_A: .long 0xFE800020 |
| DBKIND_D: .long 0x00000005 |
| DBCONF_A: .long 0xFE800024 |
| DBCONF_D: .long 0x0D020A01 |
| |
| DBTR0_A: .long 0xFE800040 |
| DBTR0_D_533:.long 0x00000004 |
| DBTR0_D_400:.long 0x00000003 |
| DBTR1_A: .long 0xFE800044 |
| DBTR1_D_533:.long 0x00000003 |
| DBTR1_D_400:.long 0x00000002 |
| DBTR2_A: .long 0xFE800048 |
| DBTR2_D: .long 0x00000000 |
| DBTR3_A: .long 0xFE800050 |
| DBTR3_D_533:.long 0x00000004 |
| DBTR3_D_400:.long 0x00000003 |
| |
| DBTR4_A: .long 0xFE800054 |
| DBTR4_D_533:.long 0x00050004 |
| DBTR4_D_400:.long 0x00050003 |
| |
| DBTR5_A: .long 0xFE800058 |
| DBTR5_D_533:.long 0x0000000F |
| DBTR5_D_400:.long 0x0000000B |
| |
| DBTR6_A: .long 0xFE80005C |
| DBTR6_D_533:.long 0x0000000B |
| DBTR6_D_400:.long 0x00000008 |
| |
| DBTR7_A: .long 0xFE800060 |
| DBTR7_D: .long 0x00000002 |
| |
| DBTR8_A: .long 0xFE800064 |
| DBTR8_D_533:.long 0x0000000D |
| DBTR8_D_400:.long 0x0000000A |
| |
| DBTR9_A: .long 0xFE800068 |
| DBTR9_D: .long 0x00000002 |
| |
| DBTR10_A: .long 0xFE80006C |
| DBTR10_D_533:.long 0x00000004 |
| DBTR10_D_400:.long 0x00000003 |
| |
| DBTR11_A: .long 0xFE800070 |
| DBTR11_D: .long 0x00000008 |
| |
| DBTR12_A: .long 0xFE800074 |
| DBTR12_D_533:.long 0x00000009 |
| DBTR12_D_400:.long 0x00000008 |
| |
| DBTR13_A: .long 0xFE800078 |
| DBTR13_D_533:.long 0x00000022 |
| DBTR13_D_400:.long 0x0000001A |
| |
| DBTR14_A: .long 0xFE80007C |
| DBTR14_D: .long 0x00070002 |
| |
| DBTR15_A: .long 0xFE800080 |
| DBTR15_D: .long 0x00000003 |
| |
| DBTR16_A: .long 0xFE800084 |
| DBTR16_D_533:.long 0x120A1001 |
| DBTR16_D_400:.long 0x12091001 |
| |
| DBTR17_A: .long 0xFE800088 |
| DBTR17_D_533:.long 0x00040000 |
| DBTR17_D_400:.long 0x00030000 |
| |
| DBTR18_A: .long 0xFE80008C |
| DBTR18_D_533:.long 0x02010200 |
| DBTR18_D_400:.long 0x02000207 |
| |
| DBBL_A: .long 0xFE8000B0 |
| DBBL_D: .long 0x00000000 |
| |
| DBRNK0_A: .long 0xFE800100 |
| DBRNK0_D: .long 0x00000001 |
| |
| DBCMD_A: .long 0xFE800018 |
| DBCMD_D0_533: .long 0x1100006B |
| DBCMD_D0_400: .long 0x11000050 |
| DBCMD_D1: .long 0x0B000000 |
| DBCMD_D2: .long 0x2A004000 |
| DBCMD_D3: .long 0x2B006000 |
| DBCMD_D4: .long 0x29002044 |
| DBCMD_D5_533: .long 0x28000743 |
| DBCMD_D5_400: .long 0x28000533 |
| DBCMD_D6: .long 0x0B000000 |
| DBCMD_D7: .long 0x0C000000 |
| DBCMD_D8: .long 0x0C000000 |
| DBCMD_D9_533: .long 0x28000643 |
| DBCMD_D9_400: .long 0x28000433 |
| DBCMD_D10: .long 0x000000C8 |
| DBCMD_D11: .long 0x290023C4 |
| DBCMD_D12: .long 0x29002004 |
| |
| DBRFCNF0_A: .long 0xFE8000E0 |
| DBRFCNF0_D: .long 0x000001FF |
| DBRFCNF1_A: .long 0xFE8000E4 |
| DBRFCNF1_D_533: .long 0x00000805 |
| DBRFCNF1_D_400: .long 0x00000618 |
| |
| DBRFCNF2_A: .long 0xFE8000E8 |
| DBRFCNF2_D: .long 0x00000000 |
| |
| DBRFEN_A: .long 0xFE800014 |
| DBRFEN_D: .long 0x00000001 |
| |
| DBACEN_A: .long 0xFE800010 |
| DBACEN_D: .long 0x00000001 |
| |
| DBWAIT_A: .long 0xFE80001C |
| SDRAM_A: .long 0x0C000000 |
| |
| finish_init_sh7734: |
| write32 CCR_A, CCR_D |
| |
| stc sr, r0 |
| mov.l SR_MASK_D, r1 |
| and r1, r0 |
| ldc r0, sr |
| |
| rts |
| nop |
| |
| .align 2 |
| |
| CCR_A: .long 0xFF00001C |
| CCR_D: .long 0x0000090B |
| SR_MASK_D: .long 0xEFFFFF0F |
