| /* |
| * (C) Copyright 2000 |
| * Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
| * |
| * See file CREDITS for list of people who contributed to this |
| * project. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License as |
| * published by the Free Software Foundation; either version 2 of |
| * the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| * MA 02111-1307 USA |
| */ |
| |
| /* |
| * Pantelis Antoniou, Intracom S.A., panto@intracom.gr |
| * U-Boot port on NetVia board |
| */ |
| |
| #include <common.h> |
| #include "mpc8xx.h" |
| |
| /****************************************************************/ |
| |
| #if defined(CONFIG_NETVIA_VERSION) && CONFIG_NETVIA_VERSION >= 2 |
| /* last value written to the external register; we cannot read back */ |
| unsigned int last_er_val; |
| #endif |
| |
| /****************************************************************/ |
| |
| /****************************************************************/ |
| |
| /* some sane bit macros */ |
| #define _BD(_b) (1U << (31-(_b))) |
| #define _BDR(_l, _h) (((((1U << (31-(_l))) - 1) << 1) | 1) & ~((1U << (31-(_h))) - 1)) |
| |
| #define _BW(_b) (1U << (15-(_b))) |
| #define _BWR(_l, _h) (((((1U << (15-(_l))) - 1) << 1) | 1) & ~((1U << (15-(_h))) - 1)) |
| |
| #define _BB(_b) (1U << (7-(_b))) |
| #define _BBR(_l, _h) (((((1U << (7-(_l))) - 1) << 1) | 1) & ~((1U << (7-(_h))) - 1)) |
| |
| #define _B(_b) _BD(_b) |
| #define _BR(_l, _h) _BDR(_l, _h) |
| |
| /****************************************************************/ |
| |
| #define _NOT_USED_ 0xFFFFFFFF |
| |
| /****************************************************************/ |
| |
| #define CS_0000 0x00000000 |
| #define CS_0001 0x10000000 |
| #define CS_0010 0x20000000 |
| #define CS_0011 0x30000000 |
| #define CS_0100 0x40000000 |
| #define CS_0101 0x50000000 |
| #define CS_0110 0x60000000 |
| #define CS_0111 0x70000000 |
| #define CS_1000 0x80000000 |
| #define CS_1001 0x90000000 |
| #define CS_1010 0xA0000000 |
| #define CS_1011 0xB0000000 |
| #define CS_1100 0xC0000000 |
| #define CS_1101 0xD0000000 |
| #define CS_1110 0xE0000000 |
| #define CS_1111 0xF0000000 |
| |
| #define BS_0000 0x00000000 |
| #define BS_0001 0x01000000 |
| #define BS_0010 0x02000000 |
| #define BS_0011 0x03000000 |
| #define BS_0100 0x04000000 |
| #define BS_0101 0x05000000 |
| #define BS_0110 0x06000000 |
| #define BS_0111 0x07000000 |
| #define BS_1000 0x08000000 |
| #define BS_1001 0x09000000 |
| #define BS_1010 0x0A000000 |
| #define BS_1011 0x0B000000 |
| #define BS_1100 0x0C000000 |
| #define BS_1101 0x0D000000 |
| #define BS_1110 0x0E000000 |
| #define BS_1111 0x0F000000 |
| |
| #define A10_AAAA 0x00000000 |
| #define A10_AAA0 0x00200000 |
| #define A10_AAA1 0x00300000 |
| #define A10_000A 0x00800000 |
| #define A10_0000 0x00A00000 |
| #define A10_0001 0x00B00000 |
| #define A10_111A 0x00C00000 |
| #define A10_1110 0x00E00000 |
| #define A10_1111 0x00F00000 |
| |
| #define RAS_0000 0x00000000 |
| #define RAS_0001 0x00040000 |
| #define RAS_1110 0x00080000 |
| #define RAS_1111 0x000C0000 |
| |
| #define CAS_0000 0x00000000 |
| #define CAS_0001 0x00010000 |
| #define CAS_1110 0x00020000 |
| #define CAS_1111 0x00030000 |
| |
| #define WE_0000 0x00000000 |
| #define WE_0001 0x00004000 |
| #define WE_1110 0x00008000 |
| #define WE_1111 0x0000C000 |
| |
| #define GPL4_0000 0x00000000 |
| #define GPL4_0001 0x00001000 |
| #define GPL4_1110 0x00002000 |
| #define GPL4_1111 0x00003000 |
| |
| #define GPL5_0000 0x00000000 |
| #define GPL5_0001 0x00000400 |
| #define GPL5_1110 0x00000800 |
| #define GPL5_1111 0x00000C00 |
| #define LOOP 0x00000080 |
| |
| #define EXEN 0x00000040 |
| |
| #define AMX_COL 0x00000000 |
| #define AMX_ROW 0x00000020 |
| #define AMX_MAR 0x00000030 |
| |
| #define NA 0x00000008 |
| |
| #define UTA 0x00000004 |
| |
| #define TODT 0x00000002 |
| |
| #define LAST 0x00000001 |
| |
| const uint sdram_table[0x40] = { |
| /* RSS */ |
| CS_0001 | BS_1111 | A10_AAAA | RAS_0001 | CAS_1111 | WE_1111 | AMX_COL | UTA, /* ACT */ |
| CS_1111 | BS_1111 | A10_0000 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | UTA, /* NOP */ |
| CS_0000 | BS_1111 | A10_0001 | RAS_1111 | CAS_0001 | WE_1111 | AMX_COL | UTA, /* READ */ |
| CS_0001 | BS_0001 | A10_1111 | RAS_0001 | CAS_1111 | WE_0001 | AMX_COL | UTA, /* PALL */ |
| CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL, /* NOP */ |
| CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | UTA | TODT | LAST, /* NOP */ |
| _NOT_USED_, _NOT_USED_, |
| |
| /* RBS */ |
| CS_0001 | BS_1111 | A10_AAAA | RAS_0001 | CAS_1111 | WE_1111 | AMX_COL | UTA, /* ACT */ |
| CS_1111 | BS_1111 | A10_0000 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | UTA, /* NOP */ |
| CS_0001 | BS_1111 | A10_0001 | RAS_1111 | CAS_0001 | WE_1111 | AMX_COL | UTA, /* READ */ |
| CS_1111 | BS_0000 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | UTA, /* NOP */ |
| CS_1111 | BS_0000 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL, /* NOP */ |
| CS_1111 | BS_0000 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL, /* NOP */ |
| CS_0001 | BS_0001 | A10_1111 | RAS_0001 | CAS_1111 | WE_0001 | AMX_COL, /* PALL */ |
| CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | TODT | LAST, /* NOP */ |
| _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, |
| _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, |
| |
| /* WSS */ |
| CS_0001 | BS_1111 | A10_AAAA | RAS_0001 | CAS_1111 | WE_1111 | AMX_COL | UTA, |
| CS_1111 | BS_1111 | A10_0000 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL, |
| CS_0000 | BS_0001 | A10_0000 | RAS_1111 | CAS_0001 | WE_0000 | AMX_COL | UTA, |
| CS_0001 | BS_1111 | A10_1111 | RAS_0001 | CAS_1111 | WE_0001 | AMX_COL | UTA | TODT | LAST, |
| _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, |
| |
| /* WBS */ |
| CS_0001 | BS_1111 | A10_AAAA | RAS_0001 | CAS_1111 | WE_1111 | AMX_COL | UTA, /* ACT */ |
| CS_1111 | BS_1111 | A10_0000 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL, /* NOP */ |
| CS_0001 | BS_0000 | A10_0000 | RAS_1111 | CAS_0001 | WE_0000 | AMX_COL, /* WRITE */ |
| CS_1111 | BS_0000 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL, /* NOP */ |
| CS_1111 | BS_0000 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL, /* NOP */ |
| CS_1111 | BS_0001 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | UTA, /* NOP */ |
| CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | UTA, /* NOP */ |
| CS_0001 | BS_1111 | A10_1111 | RAS_0001 | CAS_1111 | WE_0001 | AMX_COL | UTA, /* PALL */ |
| CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | UTA | TODT | LAST, /* NOP */ |
| _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, |
| _NOT_USED_, _NOT_USED_, _NOT_USED_, |
| |
| /* UPT */ |
| CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL, /* NOP */ |
| CS_0001 | BS_1111 | A10_1111 | RAS_0001 | CAS_0001 | WE_1111 | AMX_COL | LOOP, |
| CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL, |
| CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL, |
| CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | LOOP, |
| CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | LAST, |
| _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, |
| _NOT_USED_, _NOT_USED_, |
| |
| /* EXC */ |
| CS_0001 | BS_1111 | A10_1111 | RAS_0001 | CAS_1111 | WE_0001 | AMX_COL, |
| CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | TODT | LAST, |
| |
| /* REG */ |
| CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1110 | AMX_MAR, |
| CS_0001 | BS_1111 | A10_0001 | RAS_0001 | CAS_0001 | WE_0001 | AMX_MAR | TODT | LAST, |
| }; |
| |
| /* ------------------------------------------------------------------------- */ |
| |
| |
| /* |
| * Check Board Identity: |
| * |
| * Test ETX ID string (ETX_xxx...) |
| * |
| * Return 1 always. |
| */ |
| |
| int checkboard(void) |
| { |
| #if !defined(CONFIG_NETVIA_VERSION) || CONFIG_NETVIA_VERSION == 1 |
| printf ("NETVIA v1\n"); |
| #else |
| printf ("NETVIA v2+\n"); |
| #endif |
| return (0); |
| } |
| |
| /* ------------------------------------------------------------------------- */ |
| |
| /* 0xC8 = 0b11001000 , CAS3, >> 2 = 0b00 11 0 010 */ |
| #define MAR_SDRAM_INIT 0x000000C8LU |
| |
| #define MCR_OP(x) ((unsigned long)((x) & 3) << (31-1)) |
| #define MCR_OP_MASK MCR_OP(3) |
| |
| #define MCR_UM(x) ((unsigned long)((x) & 1) << (31 - 8)) |
| #define MCR_UM_MASK MCR_UM(1) |
| #define MCR_UM_UPMA MCR_UM(0) |
| #define MCR_UM_UPMB MCR_UM(1) |
| |
| #define MCR_MB(x) ((unsigned long)((x) & 7) << (31 - 18)) |
| #define MCR_MB_MASK MCR_MB(7) |
| #define MCR_MB_CS(x) MCR_MB(x) |
| |
| #define MCR_MCLF(x) ((unsigned long)((x) & 15) << (31 - 23)) |
| #define MCR_MCLF_MASK MCR_MCLF(15) |
| |
| phys_size_t initdram(int board_type) |
| { |
| volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; |
| volatile memctl8xx_t *memctl = &immap->im_memctl; |
| long int size; |
| |
| upmconfig(UPMA, (uint *) sdram_table, sizeof(sdram_table) / sizeof(uint)); |
| |
| /* |
| * Preliminary prescaler for refresh |
| */ |
| memctl->memc_mptpr = CONFIG_SYS_MPTPR_1BK_8K; |
| |
| memctl->memc_mar = MAR_SDRAM_INIT; /* 32-bit address to be output on the address bus if AMX = 0b11 */ |
| |
| /* |
| * Map controller bank 3 to the SDRAM bank at preliminary address. |
| */ |
| memctl->memc_or3 = CONFIG_SYS_OR3_PRELIM; |
| memctl->memc_br3 = CONFIG_SYS_BR3_PRELIM; |
| |
| memctl->memc_mamr = CONFIG_SYS_MAMR_9COL & ~MAMR_PTAE; /* no refresh yet */ |
| |
| udelay(200); |
| |
| /* perform SDRAM initialisation sequence */ |
| memctl->memc_mcr = MCR_OP_RUN | MCR_UM_UPMA | MCR_MB_CS3 | MCR_MCLF(1) | MCR_MAD(0x3C); /* precharge all */ |
| udelay(1); |
| memctl->memc_mcr = MCR_OP_RUN | MCR_UM_UPMA | MCR_MB_CS3 | MCR_MCLF(0) | MCR_MAD(0x30); /* refresh 16 times(0) */ |
| udelay(1); |
| memctl->memc_mcr = MCR_OP_RUN | MCR_UM_UPMA | MCR_MB_CS3 | MCR_MCLF(1) | MCR_MAD(0x3E); /* exception program (write mar) */ |
| udelay(1); |
| |
| memctl->memc_mamr |= MAMR_PTAE; /* enable refresh */ |
| |
| udelay(1000); |
| |
| memctl->memc_mamr = CONFIG_SYS_MAMR_9COL; |
| |
| size = SDRAM_MAX_SIZE; |
| |
| udelay(10000); |
| |
| return (size); |
| } |
| |
| /* ------------------------------------------------------------------------- */ |
| |
| int misc_init_r(void) |
| { |
| #if defined(CONFIG_NETVIA_VERSION) && CONFIG_NETVIA_VERSION >= 2 |
| last_er_val = 0xffffffff; |
| #endif |
| return(0); |
| } |
| |
| /* ------------------------------------------------------------------------- */ |
| |
| /* GP = general purpose, SP = special purpose (on chip peripheral) */ |
| |
| /* bits that can have a special purpose or can be configured as inputs/outputs */ |
| #define PA_GP_INMASK 0 |
| #define PA_GP_OUTMASK (_BW(5) | _BWR(14, 15)) |
| #define PA_SP_MASK (_BW(4) | _BWR(6, 13)) |
| #define PA_ODR_VAL 0 |
| #define PA_GP_OUTVAL _BW(5) |
| #define PA_SP_DIRVAL 0 |
| |
| #define PB_GP_INMASK _B(28) |
| #define PB_GP_OUTMASK (_BR(16, 19) | _BR(26, 27) | _BR(29, 31)) |
| #define PB_SP_MASK _BR(22, 25) |
| #define PB_ODR_VAL 0 |
| #define PB_GP_OUTVAL (_BR(16, 19) | _BR(26, 27) | _BR(29, 31)) |
| #define PB_SP_DIRVAL 0 |
| |
| #if !defined(CONFIG_NETVIA_VERSION) || CONFIG_NETVIA_VERSION == 1 |
| |
| #define PC_GP_INMASK (_BWR(5, 7) | _BWR(9, 10) | _BW(13)) |
| #define PC_GP_OUTMASK _BW(12) |
| #define PC_SP_MASK (_BW(4) | _BW(8)) |
| #define PC_SOVAL 0 |
| #define PC_INTVAL 0 |
| #define PC_GP_OUTVAL 0 |
| #define PC_SP_DIRVAL 0 |
| |
| #define PD_GP_INMASK 0 |
| #define PD_GP_OUTMASK _BWR(3, 15) |
| #define PD_SP_MASK 0 |
| #define PD_GP_OUTVAL (_BW(3) | _BW(5) | _BW(7) | _BWR(8, 15)) |
| #define PD_SP_DIRVAL 0 |
| |
| #elif CONFIG_NETVIA_VERSION >= 2 |
| |
| #define PC_GP_INMASK (_BW(5) | _BW(7) | _BWR(9, 11) | _BWR(13, 15)) |
| #define PC_GP_OUTMASK (_BW(6) | _BW(12)) |
| #define PC_SP_MASK (_BW(4) | _BW(8)) |
| #define PC_SOVAL 0 |
| #define PC_INTVAL _BW(7) |
| #define PC_GP_OUTVAL (_BW(6) | _BW(12)) |
| #define PC_SP_DIRVAL 0 |
| |
| #define PD_GP_INMASK 0 |
| #define PD_GP_OUTMASK _BWR(3, 15) |
| #define PD_SP_MASK 0 |
| #define PD_GP_OUTVAL (_BW(3) | _BW(5) | _BW(9) | _BW(11)) |
| #define PD_SP_DIRVAL 0 |
| |
| #else |
| #error Unknown NETVIA board version. |
| #endif |
| |
| int board_early_init_f(void) |
| { |
| volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; |
| volatile iop8xx_t *ioport = &immap->im_ioport; |
| volatile cpm8xx_t *cpm = &immap->im_cpm; |
| volatile memctl8xx_t *memctl = &immap->im_memctl; |
| |
| /* DSP0 chip select */ |
| memctl->memc_or4 = ((0xFFFFFFFFLU & ~(DSP_SIZE - 1)) | OR_CSNT_SAM | OR_BI | OR_ACS_DIV2 | OR_SETA | OR_TRLX); |
| memctl->memc_br4 = ((DSP0_BASE & BR_BA_MSK) | BR_PS_16 | BR_V); |
| |
| /* DSP1 chip select */ |
| memctl->memc_or5 = ((0xFFFFFFFFLU & ~(DSP_SIZE - 1)) | OR_CSNT_SAM | OR_BI | OR_ACS_DIV2 | OR_SETA | OR_TRLX); |
| memctl->memc_br5 = ((DSP1_BASE & BR_BA_MSK) | BR_PS_16 | BR_V); |
| |
| /* FPGA chip select */ |
| memctl->memc_or6 = ((0xFFFFFFFFLU & ~(FPGA_SIZE - 1)) | OR_BI | OR_SCY_1_CLK); |
| memctl->memc_br6 = ((FPGA_BASE & BR_BA_MSK) | BR_PS_8 | BR_V); |
| |
| #if defined(CONFIG_NETVIA_VERSION) && CONFIG_NETVIA_VERSION >= 2 |
| /* NAND chip select */ |
| memctl->memc_or1 = ((0xFFFFFFFFLU & ~(NAND_SIZE - 1)) | OR_CSNT_SAM | OR_BI | OR_SCY_8_CLK | OR_EHTR | OR_TRLX); |
| memctl->memc_br1 = ((NAND_BASE & BR_BA_MSK) | BR_PS_8 | BR_V); |
| |
| /* kill this chip select */ |
| memctl->memc_br2 &= ~BR_V; /* invalid */ |
| |
| /* external reg chip select */ |
| memctl->memc_or7 = ((0xFFFFFFFFLU & ~(ER_SIZE - 1)) | OR_BI | OR_SCY_4_CLK); |
| memctl->memc_br7 = ((ER_BASE & BR_BA_MSK) | BR_PS_32 | BR_V); |
| #endif |
| |
| ioport->iop_padat = PA_GP_OUTVAL; |
| ioport->iop_paodr = PA_ODR_VAL; |
| ioport->iop_padir = PA_GP_OUTMASK | PA_SP_DIRVAL; |
| ioport->iop_papar = PA_SP_MASK; |
| |
| cpm->cp_pbdat = PB_GP_OUTVAL; |
| cpm->cp_pbodr = PB_ODR_VAL; |
| cpm->cp_pbdir = PB_GP_OUTMASK | PB_SP_DIRVAL; |
| cpm->cp_pbpar = PB_SP_MASK; |
| |
| ioport->iop_pcdat = PC_GP_OUTVAL; |
| ioport->iop_pcdir = PC_GP_OUTMASK | PC_SP_DIRVAL; |
| ioport->iop_pcso = PC_SOVAL; |
| ioport->iop_pcint = PC_INTVAL; |
| ioport->iop_pcpar = PC_SP_MASK; |
| |
| ioport->iop_pddat = PD_GP_OUTVAL; |
| ioport->iop_pddir = PD_GP_OUTMASK | PD_SP_DIRVAL; |
| ioport->iop_pdpar = PD_SP_MASK; |
| |
| #if defined(CONFIG_NETVIA_VERSION) && CONFIG_NETVIA_VERSION >= 2 |
| /* external register init */ |
| *(volatile uint *)ER_BASE = 0xFFFFFFFF; |
| #endif |
| |
| return 0; |
| } |