X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;ds=sidebyside;f=board%2Fesd%2Fplu405%2Fplu405.c;h=03bf9c8fe5ce6dafa851135e5d8a1324fb085d91;hb=aaf5e825606a70ddc8fca8e366d8c16a6fd3cc7c;hp=920f7178aec384dec0cf1821b82e5e24018ced5a;hpb=375c2c9e57ea5b8d678475379378f4774aa9cb88;p=oweals%2Fu-boot.git diff --git a/board/esd/plu405/plu405.c b/board/esd/plu405/plu405.c index 920f7178ae..03bf9c8fe5 100644 --- a/board/esd/plu405/plu405.c +++ b/board/esd/plu405/plu405.c @@ -2,36 +2,20 @@ * (C) Copyright 2001-2003 * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com * - * 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 + * SPDX-License-Identifier: GPL-2.0+ */ #include #include +#include #include #include +#include +#undef FPGA_DEBUG -#if 0 -#define FPGA_DEBUG -#endif +DECLARE_GLOBAL_DATA_PTR; -extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]); extern void lxt971_no_sleep(void); /* fpga configuration data - gzip compressed and generated by bin2c */ @@ -45,29 +29,35 @@ const unsigned char fpgadata[] = */ #include "../common/fpga.c" - /* - * include common auto-update code (for esd boards) + * generate a short spike on the CAN tx line + * to bring the couplers in sync */ -#include "../common/auto_update.h" - -au_image_t au_image[] = { - {"plu405/preinst.img", 0, -1, AU_SCRIPT}, - {"plu405/u-boot.img", 0xfffc0000, 0x00040000, AU_FIRMWARE}, - {"plu405/pImage_${bd_type}", 0x00000000, 0x00100000, AU_NAND}, - {"plu405/pImage.initrd", 0x00100000, 0x00200000, AU_NAND}, - {"plu405/yaffsmt2.img", 0x00300000, 0x01c00000, AU_NAND}, - {"plu405/postinst.img", 0, 0, AU_SCRIPT}, -}; - -int N_AU_IMAGES = (sizeof(au_image) / sizeof(au_image[0])); - - -/* Prototypes */ -int gunzip(void *, int, unsigned char *, unsigned long *); - +void init_coupler(u32 addr) +{ + struct sja1000_basic_s *ctrl = (struct sja1000_basic_s *)addr; + + /* reset */ + out_8(&ctrl->cr, CR_RR); + + /* dominant */ + out_8(&ctrl->btr0, 0x00); /* btr setup is required */ + out_8(&ctrl->btr1, 0x14); /* we use 1Mbit/s */ + out_8(&ctrl->oc, OC_TP1 | OC_TN1 | OC_POL1 | + OC_TP0 | OC_TN0 | OC_POL0 | OC_MODE1); + out_8(&ctrl->cr, 0x00); + + /* delay */ + in_8(&ctrl->cr); + in_8(&ctrl->cr); + in_8(&ctrl->cr); + in_8(&ctrl->cr); + + /* reset */ + out_8(&ctrl->cr, CR_RR); +} -int board_early_init_f (void) +int board_early_init_f(void) { /* * IRQ 0-15 405GP internally generated; active high; level sensitive @@ -81,43 +71,41 @@ int board_early_init_f (void) * IRQ 30 (EXT IRQ 5) PCI INTA; active low; level sensitive * IRQ 31 (EXT IRQ 6) COMPACT FLASH; active high; level sensitive */ - mtdcr(uicsr, 0xFFFFFFFF); /* clear all ints */ - mtdcr(uicer, 0x00000000); /* disable all ints */ - mtdcr(uiccr, 0x00000000); /* set all to be non-critical*/ - mtdcr(uicpr, 0xFFFFFF99); /* set int polarities */ - mtdcr(uictr, 0x10000000); /* set int trigger levels */ - mtdcr(uicvcr, 0x00000001); /* set vect base=0,INT0 highest priority*/ - mtdcr(uicsr, 0xFFFFFFFF); /* clear all ints */ + mtdcr(UIC0SR, 0xFFFFFFFF); /* clear all ints */ + mtdcr(UIC0ER, 0x00000000); /* disable all ints */ + mtdcr(UIC0CR, 0x00000000); /* set all to be non-critical*/ + mtdcr(UIC0PR, 0xFFFFFF99); /* set int polarities */ + mtdcr(UIC0TR, 0x10000000); /* set int trigger levels */ + mtdcr(UIC0VCR, 0x00000001); /* set vect base=0,INT0 highest prio */ + mtdcr(UIC0SR, 0xFFFFFFFF); /* clear all ints */ /* - * EBC Configuration Register: set ready timeout to 512 ebc-clks -> ca. 15 us + * EBC Configuration Register: set ready timeout to + * 512 ebc-clks -> ca. 15 us */ - mtebc (epcr, 0xa8400000); /* ebc always driven */ + mtebc(EBC0_CFG, 0xa8400000); /* ebc always driven */ return 0; } - -int misc_init_f (void) -{ - return 0; /* dummy implementation */ -} - - -int misc_init_r (void) +int misc_init_r(void) { - volatile unsigned char *duart0_mcr = (unsigned char *)((ulong)DUART0_BA + 4); - volatile unsigned char *duart1_mcr = (unsigned char *)((ulong)DUART1_BA + 4); unsigned char *dst; + unsigned char fctr; ulong len = sizeof(fpgadata); int status; int index; int i; - dst = malloc(CFG_FPGA_MAX_SIZE); - if (gunzip (dst, CFG_FPGA_MAX_SIZE, (uchar *)fpgadata, &len) != 0) { - printf ("GUNZIP ERROR - must RESET board to recover\n"); - do_reset (NULL, 0, 0, NULL); + /* adjust flash start and offset */ + gd->bd->bi_flashstart = 0 - gd->bd->bi_flashsize; + gd->bd->bi_flashoffset = 0; + + 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); @@ -125,13 +113,16 @@ int misc_init_r (void) printf("\nFPGA: Booting failed "); switch (status) { case ERROR_FPGA_PRG_INIT_LOW: - printf("(Timeout: INIT not low after asserting PROGRAM*)\n "); + 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 "); + printf("(Timeout: INIT not high " + "after deasserting PROGRAM*)\n"); break; case ERROR_FPGA_PRG_DONE: - printf("(Timeout: DONE not high after programming FPGA)\n "); + printf("(Timeout: DONE not high " + "after programming FPGA)\n"); break; } @@ -149,7 +140,7 @@ int misc_init_r (void) for (index=0;index<1000;index++) udelay(1000); } - putc ('\n'); + putc('\n'); do_reset(NULL, 0, 0, NULL); } @@ -162,7 +153,7 @@ int misc_init_r (void) printf("%s ", &(dst[index+1])); index += len+3; } - putc ('\n'); + putc('\n'); free(dst); @@ -177,123 +168,178 @@ int misc_init_r (void) /* * Reset external DUARTs */ - out32(GPIO0_OR, in32(GPIO0_OR) | CFG_DUART_RST); /* set reset to high */ - udelay(10); /* wait 10us */ - out32(GPIO0_OR, in32(GPIO0_OR) & ~CFG_DUART_RST); /* set reset to low */ - udelay(1000); /* wait 1ms */ + out_be32((void*)GPIO0_OR, + in_be32((void*)GPIO0_OR) | CONFIG_SYS_DUART_RST); + udelay(10); + out_be32((void*)GPIO0_OR, + in_be32((void*)GPIO0_OR) & ~CONFIG_SYS_DUART_RST); + udelay(1000); /* * Set NAND-FLASH GPIO signals to default */ - out32(GPIO0_OR, in32(GPIO0_OR) & ~(CFG_NAND_CLE | CFG_NAND_ALE)); - out32(GPIO0_OR, in32(GPIO0_OR) | CFG_NAND_CE); + out_be32((void*)GPIO0_OR, + in_be32((void*)GPIO0_OR) & + ~(CONFIG_SYS_NAND_CLE | CONFIG_SYS_NAND_ALE)); + out_be32((void*)GPIO0_OR, + in_be32((void*)GPIO0_OR) | CONFIG_SYS_NAND_CE); + + /* + * Setup EEPROM write protection + */ + out_be32((void*)GPIO0_OR, + in_be32((void*)GPIO0_OR) | CONFIG_SYS_EEPROM_WP); + out_be32((void*)GPIO0_TCR, + in_be32((void*)GPIO0_TCR) | CONFIG_SYS_EEPROM_WP); /* * Enable interrupts in exar duart mcr[3] */ - *duart0_mcr = 0x08; - *duart1_mcr = 0x08; + out_8((void *)DUART0_BA + 4, 0x08); + out_8((void *)DUART1_BA + 4, 0x08); - return (0); -} + /* + * Enable auto RS485 mode in 2nd external uart + */ + out_8((void *)DUART1_BA + 3, 0xbf); /* write LCR */ + fctr = in_8((void *)DUART1_BA + 1); /* read FCTR */ + fctr |= 0x08; /* enable RS485 mode */ + out_8((void *)DUART1_BA + 1, fctr); /* write FCTR */ + out_8((void *)DUART1_BA + 3, 0); /* write LCR */ + /* + * Init magnetic couplers + */ + if (!getenv("noinitcoupler")) { + init_coupler(CAN0_BA); + init_coupler(CAN1_BA); + } + return 0; +} /* * Check Board Identity: */ -int checkboard (void) +int checkboard(void) { char str[64]; - int i = getenv_r ("serial#", str, sizeof(str)); + int i = getenv_f("serial#", str, sizeof(str)); - puts ("Board: "); + puts("Board: "); - if (i == -1) { - puts ("### No HW ID - assuming PLU405"); - } else { + if (i == -1) + puts("### No HW ID - assuming PLU405"); + else puts(str); - } - putc ('\n'); + putc('\n'); return 0; } - -long int initdram (int board_type) -{ - unsigned long val; - - mtdcr(memcfga, mem_mb0cf); - val = mfdcr(memcfgd); - -#if 0 - printf("\nmb0cf=%x\n", val); /* test-only */ - printf("strap=%x\n", mfdcr(strap)); /* test-only */ -#endif - - return (4*1024*1024 << ((val & 0x000e0000) >> 17)); -} - - -int testdram (void) -{ - /* TODO: XXX XXX XXX */ - printf ("test: 16 MB - ok\n"); - - return (0); -} - - #ifdef CONFIG_IDE_RESET +#define FPGA_CTRL (CONFIG_SYS_FPGA_BASE_ADDR + CONFIG_SYS_FPGA_CTRL) void ide_set_reset(int on) { - volatile unsigned short *fpga_mode = - (unsigned short *)((ulong)CFG_FPGA_BASE_ADDR + CFG_FPGA_CTRL); - /* * Assert or deassert CompactFlash Reset Pin */ if (on) { /* assert RESET */ - *fpga_mode &= ~(CFG_FPGA_CTRL_CF_RESET); + out_be16((void *)FPGA_CTRL, + in_be16((void *)FPGA_CTRL) & + ~CONFIG_SYS_FPGA_CTRL_CF_RESET); } else { /* release RESET */ - *fpga_mode |= CFG_FPGA_CTRL_CF_RESET; + out_be16((void *)FPGA_CTRL, + in_be16((void *)FPGA_CTRL) | + CONFIG_SYS_FPGA_CTRL_CF_RESET); } } #endif /* CONFIG_IDE_RESET */ - -#if defined(CONFIG_CMD_NAND) -#include -extern struct nand_chip nand_dev_desc[CFG_MAX_NAND_DEVICE]; - -void nand_init(void) +void reset_phy(void) { - nand_probe(CFG_NAND_BASE); - if (nand_dev_desc[0].ChipID != NAND_ChipID_UNKNOWN) { - print_size(nand_dev_desc[0].totlen, "\n"); - } -} -#endif +#ifdef CONFIG_LXT971_NO_SLEEP + /* + * Disable sleep mode in LXT971 + */ + lxt971_no_sleep(); +#endif +} -#ifdef CONFIG_AUTO_UPDATE_SHOW -void board_auto_update_show(int au_active) +#if defined(CONFIG_SYS_EEPROM_WREN) +/* Input: I2C address of EEPROM device to enable. + * -1: deliver current state + * 0: disable write + * 1: enable write + * Returns: -1: wrong device address + * 0: dis-/en- able done + * 0/1: current state if was -1. + */ +int eeprom_write_enable(unsigned dev_addr, int state) { - if (au_active) { - printf("\n Dies ist die board-funktion: Updating!!!\n"); + if (CONFIG_SYS_I2C_EEPROM_ADDR != dev_addr) { + return -1; } else { - printf("\n Dies ist die board-funktion: Updating done!!!\n"); + switch (state) { + case 1: + /* Enable write access, clear bit GPIO0. */ + out_be32((void*)GPIO0_OR, + in_be32((void*)GPIO0_OR) & + ~CONFIG_SYS_EEPROM_WP); + state = 0; + break; + case 0: + /* Disable write access, set bit GPIO0. */ + out_be32((void*)GPIO0_OR, + in_be32((void*)GPIO0_OR) | + CONFIG_SYS_EEPROM_WP); + state = 0; + break; + default: + /* Read current status back. */ + state = ((in_be32((void*)GPIO0_OR) & + CONFIG_SYS_EEPROM_WP) == 0); + break; + } } + return state; } -#endif -void reset_phy(void) +int do_eep_wren(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { -#ifdef CONFIG_LXT971_NO_SLEEP + int query = argc == 1; + int state = 0; + + if (query) { + /* Query write access state. */ + state = eeprom_write_enable(CONFIG_SYS_I2C_EEPROM_ADDR, -1); + if (state < 0) { + puts("Query of write access state failed.\n"); + } else { + printf("Write access for device 0x%0x is %sabled.\n", + CONFIG_SYS_I2C_EEPROM_ADDR, + state ? "en" : "dis"); + state = 0; + } + } else { + if (argv[1][0] == '0') { + /* Disable write access. */ + state = eeprom_write_enable(CONFIG_SYS_I2C_EEPROM_ADDR, + 0); + } else { + /* Enable write access. */ + state = eeprom_write_enable(CONFIG_SYS_I2C_EEPROM_ADDR, + 1); + } + if (state < 0) + puts("Setup of write access state failed.\n"); + } - /* - * Disable sleep mode in LXT971 - */ - lxt971_no_sleep(); -#endif + return state; } + +U_BOOT_CMD(eepwren, 2, 0, do_eep_wren, + "Enable / disable / query EEPROM write access", + "" +); +#endif /* #if defined(CONFIG_SYS_EEPROM_WREN) */