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Diffstat (limited to 'board/mpl/vcma9/vcma9.c')
| -rw-r--r-- | board/mpl/vcma9/vcma9.c | 248 |
1 files changed, 248 insertions, 0 deletions
diff --git a/board/mpl/vcma9/vcma9.c b/board/mpl/vcma9/vcma9.c new file mode 100644 index 0000000..8e3552e --- /dev/null +++ b/board/mpl/vcma9/vcma9.c @@ -0,0 +1,248 @@ +/* + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Marius Groeger <mgroeger@sysgo.de> + * + * (C) Copyright 2002 + * David Mueller, ELSOFT AG, <d.mueller@elsoft.ch> + * + * 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 + */ + +#include <common.h> +#include <s3c2410.h> +#include <i2c.h> + +#include "vcma9.h" +#include "../common/common_util.h" + +/* ------------------------------------------------------------------------- */ + +#define FCLK_SPEED 1 + +#if FCLK_SPEED==0 /* Fout = 203MHz, Fin = 12MHz for Audio */ +#define M_MDIV 0xC3 +#define M_PDIV 0x4 +#define M_SDIV 0x1 +#elif FCLK_SPEED==1 /* Fout = 202.8MHz */ +#define M_MDIV 0xA1 +#define M_PDIV 0x3 +#define M_SDIV 0x1 +#endif + +#define USB_CLOCK 1 + +#if USB_CLOCK==0 +#define U_M_MDIV 0xA1 +#define U_M_PDIV 0x3 +#define U_M_SDIV 0x1 +#elif USB_CLOCK==1 +#define U_M_MDIV 0x48 +#define U_M_PDIV 0x3 +#define U_M_SDIV 0x2 +#endif + +static inline void delay(unsigned long loops) +{ + __asm__ volatile ("1:\n" + "subs %0, %1, #1\n" + "bne 1b":"=r" (loops):"0" (loops)); +} + +/* + * Miscellaneous platform dependent initialisations + */ + +int board_init(void) +{ + DECLARE_GLOBAL_DATA_PTR; + + /* to reduce PLL lock time, adjust the LOCKTIME register */ + rLOCKTIME = 0xFFFFFF; + + /* configure MPLL */ + rMPLLCON = ((M_MDIV << 12) + (M_PDIV << 4) + M_SDIV); + + /* some delay between MPLL and UPLL */ + delay (4000); + + /* configure UPLL */ + rUPLLCON = ((U_M_MDIV << 12) + (U_M_PDIV << 4) + U_M_SDIV); + + /* some delay between MPLL and UPLL */ + delay (8000); + + /* set up the I/O ports */ + rGPACON = 0x007FFFFF; + rGPBCON = 0x002AAAAA; + rGPBUP = 0x000002BF; + rGPCCON = 0xAAAAAAAA; + rGPCUP = 0x0000FFFF; + rGPDCON = 0xAAAAAAAA; + rGPDUP = 0x0000FFFF; + rGPECON = 0xAAAAAAAA; + rGPEUP = 0x000037F7; + rGPFCON = 0x00000000; + rGPFUP = 0x00000000; + rGPGCON = 0xFFEAFF5A; + rGPGUP = 0x0000F0DC; + rGPHCON = 0x0028AAAA; + rGPHUP = 0x00000656; + + /* setup correct IRQ modes for NIC */ + rEXTINT2 = (rEXTINT2 & ~(7<<8)) | (4<<8); /* rising edge mode */ + + /* init serial */ + gd->baudrate = CONFIG_BAUDRATE; + gd->have_console = 1; + serial_init(); + + /* arch number of VCMA9-Board */ + gd->bd->bi_arch_number = 227; + + /* adress of boot parameters */ + gd->bd->bi_boot_params = 0x30000100; + + icache_enable(); + dcache_enable(); + + return 0; +} + +int dram_init(void) +{ + DECLARE_GLOBAL_DATA_PTR; + + gd->bd->bi_dram[0].start = PHYS_SDRAM_1; + gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE; + + return 0; +} + +/* + * Get some Board/PLD Info + */ + +static uchar Get_PLD_ID(void) +{ + return(*(volatile uchar *)PLD_ID_REG); +} + +static uchar Get_PLD_BOARD(void) +{ + return(*(volatile uchar *)PLD_BOARD_REG); +} + +static uchar Get_PLD_Version(void) +{ + return((Get_PLD_ID() >> 4) & 0x0F); +} + +static uchar Get_PLD_Revision(void) +{ + return(Get_PLD_ID() & 0x0F); +} + +static int Get_Board_Config(void) +{ + uchar config = Get_PLD_BOARD() & 0x03; + + if (config == 3) + return 1; + else + return 0; +} + +static uchar Get_Board_PCB(void) +{ + return(((Get_PLD_BOARD() >> 4) & 0x03) + 'A'); +} + +/* ------------------------------------------------------------------------- */ + +/* + * Check Board Identity: + */ + +int checkboard(void) +{ + unsigned char s[50]; + unsigned char bc, var, rc; + int i; + backup_t *b = (backup_t *) s; + + puts("Board: "); + + i = getenv_r("serial#", s, 32); + if ((i < 0) || strncmp (s, "VCMA9", 5)) { + get_backup_values (b); + if (strncmp (b->signature, "MPL\0", 4) != 0) { + puts ("### No HW ID - assuming VCMA9"); + } else { + b->serial_name[5] = 0; + printf ("%s-%d Rev %c SN: %s", b->serial_name, Get_Board_Config(), + Get_Board_PCB(), &b->serial_name[6]); + } + } else { + s[5] = 0; + printf ("%s-%d Rev %c SN: %s", s, Get_Board_Config(), Get_Board_PCB(), + &s[6]); + } + printf("\n"); + return(0); +} + + + +void print_vcma9_rev(void) +{ + printf("Board: VCMA9-%d Rev: %c (PLD Ver: %d, Rev: %d)\n", + Get_Board_Config(), Get_Board_PCB(), + Get_PLD_Version(), Get_PLD_Revision()); +} + + +int last_stage_init(void) +{ + print_vcma9_rev(); + show_stdio_dev(); + check_env(); + return 0; +} + +/*************************************************************************** + * some helping routines + */ + +int overwrite_console(void) +{ + /* return TRUE if console should be overwritten */ + return 0; +} + + +/************************************************************************ +* Print VCMA9 Info +************************************************************************/ +void print_vcma9_info(void) +{ + print_vcma9_rev(); +} + + |