/* * (C) Copyright 2004 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * SPDX-License-Identifier: GPL-2.0+ */ #include #include #include #include #include /* Prototypes */ int i2c_write(uchar chip, uint addr, int alen, uchar *buffer, int len); int i2c_read(uchar chip, uint addr, int alen, uchar *buffer, int len); #if 0 #define FPGA_DEBUG #endif /* predefine these here for FPGA programming (before including fpga.c) */ #define SET_FPGA(data) mbar2_writeLong(MCFSIM_GPIO1_OUT, data) #define FPGA_DONE_STATE (mbar2_readLong(MCFSIM_GPIO1_READ) & CONFIG_SYS_FPGA_DONE) #define FPGA_INIT_STATE (mbar2_readLong(MCFSIM_GPIO1_READ) & CONFIG_SYS_FPGA_INIT) #define FPGA_PROG_ACTIVE_HIGH /* on this platform is PROG active high! */ #define out32(a,b) /* nothing to do (gpio already configured) */ /* fpga configuration data - generated by bin2cc */ const unsigned char fpgadata[] = { #include "fpgadata.c" }; /* * include common fpga code (for esd boards) */ #include "../common/fpga.c" int checkboard (void) { ulong val; uchar val8; puts ("Board: "); puts("esd TASREG"); val8 = ((uchar)~((uchar)mbar2_readLong(MCFSIM_GPIO1_READ) >> 4)) & 0xf; printf(" (Switch=%1X)\n", val8); /* * Set LED on */ val = mbar2_readLong(MCFSIM_GPIO1_OUT) & ~CONFIG_SYS_GPIO1_LED; mbar2_writeLong(MCFSIM_GPIO1_OUT, val); /* Set LED on */ return 0; }; phys_size_t initdram (int board_type) { unsigned long junk = 0xa5a59696; /* * Note: * RC = ([(RefreshTime/#rows) / (1/BusClk)] / 16) - 1 */ #ifdef CONFIG_SYS_FAST_CLK /* * Busclk=70MHz, RefreshTime=64ms, #rows=4096 (4K) * SO=1, NAM=0, COC=0, RTIM=01 (6clk refresh), RC=39 */ mbar_writeShort(MCFSIM_DCR, 0x8239); #elif CONFIG_SYS_PLL_BYPASS /* * Busclk=5.6448MHz, RefreshTime=64ms, #rows=8192 (8K) * SO=1, NAM=0, COC=0, RTIM=01 (6clk refresh), RC=02 */ mbar_writeShort(MCFSIM_DCR, 0x8202); #else /* * Busclk=36MHz, RefreshTime=64ms, #rows=4096 (4K) * SO=1, NAM=0, COC=0, RTIM=01 (6clk refresh), RC=22 (562 bus clock cycles) */ mbar_writeShort(MCFSIM_DCR, 0x8222); #endif /* * SDRAM starts at 0x0000_0000, CASL=10, CBM=010, PS=10 (16bit port), * PM=1 (continuous page mode) */ /* RE=0 (keep auto-refresh disabled while setting up registers) */ mbar_writeLong(MCFSIM_DACR0, 0x00003324); /* BAM=007c (bits 22,21 are bank selects; 256kB blocks) */ mbar_writeLong(MCFSIM_DMR0, 0x01fc0001); /** Precharge sequence **/ mbar_writeLong(MCFSIM_DACR0, 0x0000332c); /* Set DACR0[IP] (bit 3) */ out_be32((void *)0, junk); /* write to a memory location to init. precharge */ udelay(0x10); /* Allow several Precharge cycles */ /** Refresh Sequence **/ mbar_writeLong(MCFSIM_DACR0, 0x0000b324); /* Enable the refresh bit, DACR0[RE] (bit 15) */ udelay(0x7d0); /* Allow gobs of refresh cycles */ /** Mode Register initialization **/ mbar_writeLong(MCFSIM_DACR0, 0x0000b364); /* Enable DACR0[IMRS] (bit 6); RE remains enabled */ out_be32((void *)0x800, junk); /* Access RAM to initialize the mode register */ return CONFIG_SYS_SDRAM_SIZE * 1024 * 1024; }; int testdram (void) { /* TODO: XXX XXX XXX */ printf ("DRAM test not implemented!\n"); return (0); } int misc_init_r (void) { unsigned char *dst; ulong len = sizeof(fpgadata); int status; int index; int i; uchar buf[8]; dst = malloc(CONFIG_SYS_FPGA_MAX_SIZE); if (gunzip (dst, CONFIG_SYS_FPGA_MAX_SIZE, (uchar *)fpgadata, &len) != 0) { printf ("GUNZIP ERROR - must RESET board to recover\n"); do_reset (NULL, 0, 0, NULL); } status = fpga_boot(dst, len); if (status != 0) { printf("\nFPGA: Booting failed "); switch (status) { case ERROR_FPGA_PRG_INIT_LOW: printf("(Timeout: INIT not low after asserting PROGRAM*)\n "); break; case ERROR_FPGA_PRG_INIT_HIGH: printf("(Timeout: INIT not high after deasserting PROGRAM*)\n "); break; case ERROR_FPGA_PRG_DONE: printf("(Timeout: DONE not high after programming FPGA)\n "); break; } /* display infos on fpgaimage */ index = 15; for (i=0; i<4; i++) { len = dst[index]; printf("FPGA: %s\n", &(dst[index+1])); index += len+3; } putc ('\n'); /* delayed reboot */ for (i=20; i>0; i--) { printf("Rebooting in %2d seconds \r",i); for (index=0;index<1000;index++) udelay(1000); } putc ('\n'); do_reset(NULL, 0, 0, NULL); } puts("FPGA: "); /* display infos on fpgaimage */ index = 15; for (i=0; i<4; i++) { len = dst[index]; printf("%s ", &(dst[index+1])); index += len+3; } putc ('\n'); free(dst); /* * */ buf[0] = 0x00; buf[1] = 0x32; buf[2] = 0x3f; i2c_write(0x38, 0, 0, buf, 3); return (0); } #if 1 /* test-only: board specific test commands */ int i2c_probe(uchar addr); /* */ int do_iploop(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { ulong addr; if (argc < 2) { puts("ERROR!\n"); return -1; } addr = simple_strtol (argv[1], NULL, 16); printf("i2c probe looping on addr 0x%lx (cntrl-c aborts)...\n", addr); for (;;) { i2c_probe(addr); /* Abort if ctrl-c was pressed */ if (ctrlc()) { puts("\nAbort\n"); return 0; } udelay(1000); } return 0; } U_BOOT_CMD( iploop, 2, 1, do_iploop, "i2c probe loop ", "" ); /* */ int do_codec(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { uchar buf[8]; out_be16((void *)0xe0000000, 0x4000); udelay(5000); /* wait for 5ms */ buf[0] = 0x10; buf[1] = 0x07; buf[2] = 0x03; i2c_write(0x10, 0, 0, buf, 3); buf[0] = 0x10; buf[1] = 0x01; buf[2] = 0x80; i2c_write(0x10, 0, 0, buf, 3); buf[0] = 0x10; buf[1] = 0x02; buf[2] = 0x03; i2c_write(0x10, 0, 0, buf, 3); buf[0] = 0x10; buf[1] = 0x03; buf[2] = 0x29; i2c_write(0x10, 0, 0, buf, 3); buf[0] = 0x10; buf[1] = 0x04; buf[2] = 0x00; i2c_write(0x10, 0, 0, buf, 3); buf[0] = 0x10; buf[1] = 0x05; buf[2] = 0x00; i2c_write(0x10, 0, 0, buf, 3); buf[0] = 0x10; buf[1] = 0x07; buf[2] = 0x02; i2c_write(0x10, 0, 0, buf, 3); return 0; } U_BOOT_CMD( codec, 1, 1, do_codec, "Enable codec", "" ); /* */ int do_saa(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { ulong addr; ulong instr; ulong cntrl; ulong data; uchar buf[8]; if (argc < 5) { puts("ERROR!\n"); return -1; } addr = simple_strtol (argv[1], NULL, 16); instr = simple_strtol (argv[2], NULL, 16); cntrl = simple_strtol (argv[3], NULL, 16); data = simple_strtol (argv[4], NULL, 16); buf[0] = (uchar)instr; buf[1] = (uchar)cntrl; buf[2] = (uchar)data; i2c_write(addr, 0, 0, buf, 3); return 0; } U_BOOT_CMD( saa, 5, 1, do_saa, "Write to SAA1064 ", "" ); /* */ int do_iwrite(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { ulong addr; ulong data0; ulong data1; ulong data2; ulong data3; uchar buf[8]; int cnt; if (argc < 3) { puts("ERROR!\n"); return -1; } addr = simple_strtol (argv[1], NULL, 16); cnt = simple_strtol (argv[2], NULL, 16); data0 = simple_strtol (argv[3], NULL, 16); data1 = simple_strtol (argv[4], NULL, 16); data2 = simple_strtol (argv[5], NULL, 16); data3 = simple_strtol (argv[6], NULL, 16); printf("Writing %d bytes to device %lx!\n", cnt, addr); buf[0] = (uchar)data0; buf[1] = (uchar)data1; buf[2] = (uchar)data2; buf[3] = (uchar)data3; i2c_write(addr, 0, 0, buf, cnt); return 0; } U_BOOT_CMD( iwrite, 6, 1, do_iwrite, "Write n bytes to I2C-device", "addr cnt data0 ... datan" ); /* */ int do_iread(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { ulong addr; ulong cnt; uchar buf[32]; int i; if (argc < 3) { puts("ERROR!\n"); return -1; } addr = simple_strtol (argv[1], NULL, 16); cnt = simple_strtol (argv[2], NULL, 16); i2c_read(addr, 0, 0, buf, cnt); printf("I2C Data:"); for (i=0; i ", "" ); /* */ int do_ireadl(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { ulong addr; uchar buf[32]; int cnt; if (argc < 2) { puts("ERROR!\n"); return -1; } addr = simple_strtol (argv[1], NULL, 16); cnt = 1; printf("iread looping on addr 0x%lx (cntrl-c aborts)...\n", addr); for (;;) { i2c_read(addr, 0, 0, buf, cnt); /* Abort if ctrl-c was pressed */ if (ctrlc()) { puts("\nAbort\n"); return 0; } udelay(3000); } return 0; } U_BOOT_CMD( ireadl, 2, 1, do_ireadl, "Read-loop from I2C ", "" ); #endif