diff options
Diffstat (limited to 'board/rbc823')
| -rw-r--r-- | board/rbc823/Makefile | 8 | ||||
| -rw-r--r-- | board/rbc823/flash.c | 445 | ||||
| -rw-r--r-- | board/rbc823/kbd.c | 253 | ||||
| -rw-r--r-- | board/rbc823/rbc823.c | 256 | ||||
| -rw-r--r-- | board/rbc823/u-boot.lds | 92 |
5 files changed, 0 insertions, 1054 deletions
diff --git a/board/rbc823/Makefile b/board/rbc823/Makefile deleted file mode 100644 index 060a144..0000000 --- a/board/rbc823/Makefile +++ /dev/null @@ -1,8 +0,0 @@ -# -# (C) Copyright 2000-2006 -# Wolfgang Denk, DENX Software Engineering, wd@denx.de. -# -# SPDX-License-Identifier: GPL-2.0+ -# - -obj-y = rbc823.o flash.o kbd.o diff --git a/board/rbc823/flash.c b/board/rbc823/flash.c deleted file mode 100644 index 8a22652..0000000 --- a/board/rbc823/flash.c +++ /dev/null @@ -1,445 +0,0 @@ -/* - * (C) Copyright 2000 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <mpc8xx.h> - -flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; - -/* - * Functions - */ -static ulong flash_get_size(vu_long *addr, flash_info_t *info); -static int write_word(flash_info_t *info, ulong dest, ulong data); -static void flash_get_offsets(ulong base, flash_info_t *info); - -unsigned long flash_init(void) -{ - unsigned long size_b0; - int i; - - /* Init: no FLASHes known */ - for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) - flash_info[i].flash_id = FLASH_UNKNOWN; - - /* Detect size */ - size_b0 = flash_get_size((vu_long *)CONFIG_SYS_FLASH_BASE, - &flash_info[0]); - - /* Setup offsets */ - flash_get_offsets(CONFIG_SYS_FLASH_BASE, &flash_info[0]); - -#if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE - /* Monitor protection ON by default */ - flash_protect(FLAG_PROTECT_SET, - CONFIG_SYS_MONITOR_BASE, - CONFIG_SYS_MONITOR_BASE+monitor_flash_len-1, - &flash_info[0]); -#endif - - flash_info[0].size = size_b0; - - return size_b0; -} - -/*----------------------------------------------------------------------- - * Fix this to support variable sector sizes -*/ -static void flash_get_offsets(ulong base, flash_info_t *info) -{ - int i; - - /* set up sector start address table */ - if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM040) { - /* set sector offsets for bottom boot block type */ - for (i = 0; i < info->sector_count; i++) - info->start[i] = base + (i * 0x00010000); - } -} - -/*----------------------------------------------------------------------- - */ -void flash_print_info(flash_info_t *info) -{ - int i; - - if (info->flash_id == FLASH_UNKNOWN) { - puts("missing or unknown FLASH type\n"); - return; - } - - switch (info->flash_id & FLASH_VENDMASK) { - case FLASH_MAN_AMD: - printf("AMD "); - break; - case FLASH_MAN_FUJ: - printf("FUJITSU "); - break; - case FLASH_MAN_BM: - printf("BRIGHT MICRO "); - break; - default: - printf("Unknown Vendor "); - break; - } - - switch (info->flash_id & FLASH_TYPEMASK) { - case FLASH_AM040: - printf("29F040 or 29LV040 (4 Mbit, uniform sectors)\n"); - break; - case FLASH_AM400B: - printf("AM29LV400B (4 Mbit, bottom boot sect)\n"); - break; - case FLASH_AM400T: - printf("AM29LV400T (4 Mbit, top boot sector)\n"); - break; - case FLASH_AM800B: - printf("AM29LV800B (8 Mbit, bottom boot sect)\n"); - break; - case FLASH_AM800T: - printf("AM29LV800T (8 Mbit, top boot sector)\n"); - break; - case FLASH_AM160B: - printf("AM29LV160B (16 Mbit, bottom boot sect)\n"); - break; - case FLASH_AM160T: - printf("AM29LV160T (16 Mbit, top boot sector)\n"); - break; - case FLASH_AM320B: - printf("AM29LV320B (32 Mbit, bottom boot sect)\n"); - break; - case FLASH_AM320T: - printf("AM29LV320T (32 Mbit, top boot sector)\n"); - break; - default: - printf("Unknown Chip Type\n"); - break; - } - - if (info->size >> 20) { - printf(" Size: %ld MB in %d Sectors\n", - info->size >> 20, - info->sector_count); - } else { - printf(" Size: %ld KB in %d Sectors\n", - info->size >> 10, - info->sector_count); - } - - puts(" Sector Start Addresses:"); - - for (i = 0; i < info->sector_count; ++i) { - if ((i % 5) == 0) - puts("\n "); - - printf(" %08lX%s", - info->start[i], - info->protect[i] ? " (RO)" : " "); - } - - putc('\n'); - return; -} - -/* - * The following code cannot be run from FLASH! - */ - -static ulong flash_get_size(vu_long *addr, flash_info_t *info) -{ - short i; - volatile unsigned char *caddr; - char value; - - caddr = (volatile unsigned char *)addr ; - - /* Write auto select command: read Manufacturer ID */ - - debug("Base address is: %8p\n", caddr); - - caddr[0x0555] = 0xAA; - caddr[0x02AA] = 0x55; - caddr[0x0555] = 0x90; - - value = caddr[0]; - - debug("Manufact ID: %02x\n", value); - - switch (value) { - case 0x01: /*AMD_MANUFACT*/ - info->flash_id = FLASH_MAN_AMD; - break; - - case 0x04: /*FUJ_MANUFACT*/ - info->flash_id = FLASH_MAN_FUJ; - break; - - default: - info->flash_id = FLASH_UNKNOWN; - info->sector_count = 0; - info->size = 0; - break; - } - - value = caddr[1]; /* device ID */ - - debug("Device ID: %02x\n", value); - - switch (value) { - case AMD_ID_LV040B: - info->flash_id += FLASH_AM040; - info->sector_count = 8; - info->size = 0x00080000; - break; /* => 512Kb */ - - default: - info->flash_id = FLASH_UNKNOWN; - return 0; /* => no or unknown flash */ - } - - flash_get_offsets((ulong)addr, &flash_info[0]); - - /* check for protected sectors */ - for (i = 0; i < info->sector_count; i++) { - /* - * read sector protection at sector address, - * (A7 .. A0) = 0x02 - * D0 = 1 if protected - */ - caddr = (volatile unsigned char *)(info->start[i]); - info->protect[i] = caddr[2] & 1; - } - - /* - * Prevent writes to uninitialized FLASH. - */ - if (info->flash_id != FLASH_UNKNOWN) { - caddr = (volatile unsigned char *)info->start[0]; - *caddr = 0xF0; /* reset bank */ - } - - return info->size; -} - - -int flash_erase(flash_info_t *info, int s_first, int s_last) -{ - volatile unsigned char *addr = - (volatile unsigned char *)(info->start[0]); - int flag, prot, sect, l_sect; - ulong start, now, last; - - if ((s_first < 0) || (s_first > s_last)) { - if (info->flash_id == FLASH_UNKNOWN) - printf("- missing\n"); - else - printf("- no sectors to erase\n"); - - return 1; - } - - if ((info->flash_id == FLASH_UNKNOWN) || - (info->flash_id > FLASH_AMD_COMP)) { - printf("Can't erase unknown flash type - aborted\n"); - return 1; - } - - prot = 0; - for (sect = s_first; sect <= s_last; ++sect) { - if (info->protect[sect]) - prot++; - } - - if (prot) { - printf("- Warning: %d protected sectors will not be erased!\n", - prot); - } else { - printf("\n"); - } - - l_sect = -1; - - /* Disable interrupts which might cause a timeout here */ - flag = disable_interrupts(); - - addr[0x0555] = 0xAA; - addr[0x02AA] = 0x55; - addr[0x0555] = 0x80; - addr[0x0555] = 0xAA; - addr[0x02AA] = 0x55; - - /* Start erase on unprotected sectors */ - for (sect = s_first; sect <= s_last; sect++) { - if (info->protect[sect] == 0) { /* not protected */ - addr = (volatile unsigned char *)(info->start[sect]); - addr[0] = 0x30; - l_sect = sect; - } - } - - /* re-enable interrupts if necessary */ - if (flag) - enable_interrupts(); - - /* wait at least 80us - let's wait 1 ms */ - udelay(1000); - - /* - * We wait for the last triggered sector - */ - if (l_sect < 0) - goto DONE; - - start = get_timer(0); - last = start; - addr = (volatile unsigned char *)(info->start[l_sect]); - - while ((addr[0] & 0xFF) != 0xFF) { - now = get_timer(start); - if (now > CONFIG_SYS_FLASH_ERASE_TOUT) { - printf("Timeout\n"); - return 1; - } - /* show that we're waiting */ - if ((now - last) > 1000) { /* every second */ - putc('.'); - last = now; - } - } - -DONE: - /* reset to read mode */ - addr = (volatile unsigned char *)info->start[0]; - - addr[0] = 0xF0; /* reset bank */ - - printf(" done\n"); - return 0; -} - -/* - * Copy memory to flash, returns: - * 0 - OK - * 1 - write timeout - * 2 - Flash not erased - */ - -int write_buff(flash_info_t *info, uchar *src, ulong addr, ulong cnt) -{ - ulong cp, wp, data; - int i, l, rc; - - wp = (addr & ~3); /* get lower word aligned address */ - - /* - * handle unaligned start bytes - */ - l = addr - wp; - - if (l != 0) { - data = 0; - for (i = 0, cp = wp; i < l; ++i, ++cp) - data = (data << 8) | (*(uchar *)cp); - - for (; i < 4 && cnt > 0; ++i) { - data = (data << 8) | *src++; - --cnt; - ++cp; - } - - for (; cnt == 0 && i < 4; ++i, ++cp) - data = (data << 8) | (*(uchar *)cp); - - rc = write_word(info, wp, data); - - if (rc != 0) - return rc; - - wp += 4; - } - - /* - * handle word aligned part - */ - while (cnt >= 4) { - data = 0; - for (i = 0; i < 4; ++i) - data = (data << 8) | *src++; - - rc = write_word(info, wp, data); - - if (rc != 0) - return rc; - - wp += 4; - cnt -= 4; - } - - if (cnt == 0) - return 0; - - /* - * handle unaligned tail bytes - */ - data = 0; - for (i = 0, cp = wp; i < 4 && cnt > 0; ++i, ++cp) { - data = (data << 8) | *src++; - --cnt; - } - for (; i < 4; ++i, ++cp) - data = (data << 8) | (*(uchar *)cp); - - return write_word(info, wp, data); -} - -/* - * Write a word to Flash, returns: - * 0 - OK - * 1 - write timeout - * 2 - Flash not erased - */ -static int write_word(flash_info_t *info, ulong dest, ulong data) -{ - volatile unsigned char *cdest, *cdata; - volatile unsigned char *addr = - (volatile unsigned char *)(info->start[0]); - ulong start; - int flag, count = 4 ; - - cdest = (volatile unsigned char *)dest ; - cdata = (volatile unsigned char *)&data ; - - /* Check if Flash is (sufficiently) erased */ - if ((*((vu_long *)dest)&data) != data) - return 2; - - while (count--) { - /* Disable interrupts which might cause a timeout here */ - flag = disable_interrupts(); - - addr[0x0555] = 0xAA; - addr[0x02AA] = 0x55; - addr[0x0555] = 0xA0; - - *cdest = *cdata; - - /* re-enable interrupts if necessary */ - if (flag) - enable_interrupts(); - - /* data polling for D7 */ - start = get_timer(0); - while ((*cdest ^ *cdata) & 0x80) { - if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) - return 1; - } - - cdata++ ; - cdest++ ; - } - return 0; -} diff --git a/board/rbc823/kbd.c b/board/rbc823/kbd.c deleted file mode 100644 index b35509a..0000000 --- a/board/rbc823/kbd.c +++ /dev/null @@ -1,253 +0,0 @@ -/* - * (C) Copyright 2000 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -/* Modified by Udi Finkelstein - * - * This file includes communication routines for SMC1 that can run even if - * SMC2 have already been initialized. - */ - -#include <common.h> -#include <watchdog.h> -#include <commproc.h> -#include <stdio_dev.h> -#include <lcd.h> - -DECLARE_GLOBAL_DATA_PTR; - -#define SMC_INDEX 0 -#define PROFF_SMC PROFF_SMC1 -#define CPM_CR_CH_SMC CPM_CR_CH_SMC1 - -#define RBC823_KBD_BAUDRATE 38400 -#define CPM_KEYBOARD_BASE 0x1000 -/* - * Minimal serial functions needed to use one of the SMC ports - * as serial console interface. - */ - -void smc1_setbrg (void) -{ - volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; - volatile cpm8xx_t *cp = &(im->im_cpm); - - /* Set up the baud rate generator. - * See 8xx_io/commproc.c for details. - * - * Wire BRG2 to SMC1, BRG1 to SMC2 - */ - - cp->cp_simode = 0x00001000; - - cp->cp_brgc2 = - (((gd->cpu_clk / 16 / RBC823_KBD_BAUDRATE)-1) << 1) | CPM_BRG_EN; -} - -int smc1_init (void) -{ - volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; - volatile smc_t *sp; - volatile smc_uart_t *up; - volatile cbd_t *tbdf, *rbdf; - volatile cpm8xx_t *cp = &(im->im_cpm); - uint dpaddr; - - /* initialize pointers to SMC */ - - sp = (smc_t *) &(cp->cp_smc[SMC_INDEX]); - up = (smc_uart_t *) &cp->cp_dparam[PROFF_SMC]; - - /* Disable transmitter/receiver. - */ - sp->smc_smcmr &= ~(SMCMR_REN | SMCMR_TEN); - - /* Enable SDMA. - */ - im->im_siu_conf.sc_sdcr = 1; - - /* clear error conditions */ -#ifdef CONFIG_SYS_SDSR - im->im_sdma.sdma_sdsr = CONFIG_SYS_SDSR; -#else - im->im_sdma.sdma_sdsr = 0x83; -#endif - - /* clear SDMA interrupt mask */ -#ifdef CONFIG_SYS_SDMR - im->im_sdma.sdma_sdmr = CONFIG_SYS_SDMR; -#else - im->im_sdma.sdma_sdmr = 0x00; -#endif - - /* Use Port B for SMC1 instead of other functions. - */ - cp->cp_pbpar |= 0x000000c0; - cp->cp_pbdir &= ~0x000000c0; - cp->cp_pbodr &= ~0x000000c0; - - /* Set the physical address of the host memory buffers in - * the buffer descriptors. - */ - -#ifdef CONFIG_SYS_ALLOC_DPRAM - dpaddr = dpram_alloc_align (sizeof(cbd_t)*2 + 2, 8) ; -#else - dpaddr = CPM_KEYBOARD_BASE ; -#endif - - /* Allocate space for two buffer descriptors in the DP ram. - * For now, this address seems OK, but it may have to - * change with newer versions of the firmware. - * damm: allocating space after the two buffers for rx/tx data - */ - - rbdf = (cbd_t *)&cp->cp_dpmem[dpaddr]; - rbdf->cbd_bufaddr = (uint) (rbdf+2); - rbdf->cbd_sc = 0; - tbdf = rbdf + 1; - tbdf->cbd_bufaddr = ((uint) (rbdf+2)) + 1; - tbdf->cbd_sc = 0; - - /* Set up the uart parameters in the parameter ram. - */ - up->smc_rbase = dpaddr; - up->smc_tbase = dpaddr+sizeof(cbd_t); - up->smc_rfcr = SMC_EB; - up->smc_tfcr = SMC_EB; - - /* Set UART mode, 8 bit, no parity, one stop. - * Enable receive and transmit. - */ - sp->smc_smcmr = smcr_mk_clen(9) | SMCMR_SM_UART; - - /* Mask all interrupts and remove anything pending. - */ - sp->smc_smcm = 0; - sp->smc_smce = 0xff; - - /* Set up the baud rate generator. - */ - smc1_setbrg (); - - /* Make the first buffer the only buffer. - */ - tbdf->cbd_sc |= BD_SC_WRAP; - rbdf->cbd_sc |= BD_SC_EMPTY | BD_SC_WRAP; - - /* Single character receive. - */ - up->smc_mrblr = 1; - up->smc_maxidl = 0; - - /* Initialize Tx/Rx parameters. - */ - - while (cp->cp_cpcr & CPM_CR_FLG) /* wait if cp is busy */ - ; - - cp->cp_cpcr = mk_cr_cmd(CPM_CR_CH_SMC, CPM_CR_INIT_TRX) | CPM_CR_FLG; - - while (cp->cp_cpcr & CPM_CR_FLG) /* wait if cp is busy */ - ; - - /* Enable transmitter/receiver. - */ - sp->smc_smcmr |= SMCMR_REN | SMCMR_TEN; - - return (0); -} - -void smc1_putc(const char c) -{ - volatile cbd_t *tbdf; - volatile char *buf; - volatile smc_uart_t *up; - volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; - volatile cpm8xx_t *cpmp = &(im->im_cpm); - - up = (smc_uart_t *)&cpmp->cp_dparam[PROFF_SMC]; - - tbdf = (cbd_t *)&cpmp->cp_dpmem[up->smc_tbase]; - - /* Wait for last character to go. - */ - - buf = (char *)tbdf->cbd_bufaddr; - - *buf = c; - tbdf->cbd_datlen = 1; - tbdf->cbd_sc |= BD_SC_READY; - __asm__("eieio"); - - while (tbdf->cbd_sc & BD_SC_READY) { - WATCHDOG_RESET (); - __asm__("eieio"); - } -} - -int smc1_getc(void) -{ - volatile cbd_t *rbdf; - volatile unsigned char *buf; - volatile smc_uart_t *up; - volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; - volatile cpm8xx_t *cpmp = &(im->im_cpm); - unsigned char c; - - up = (smc_uart_t *)&cpmp->cp_dparam[PROFF_SMC]; - - rbdf = (cbd_t *)&cpmp->cp_dpmem[up->smc_rbase]; - - /* Wait for character to show up. - */ - buf = (unsigned char *)rbdf->cbd_bufaddr; - - while (rbdf->cbd_sc & BD_SC_EMPTY) - WATCHDOG_RESET (); - - c = *buf; - rbdf->cbd_sc |= BD_SC_EMPTY; - - return(c); -} - -int smc1_tstc(void) -{ - volatile cbd_t *rbdf; - volatile smc_uart_t *up; - volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; - volatile cpm8xx_t *cpmp = &(im->im_cpm); - - up = (smc_uart_t *)&cpmp->cp_dparam[PROFF_SMC]; - - rbdf = (cbd_t *)&cpmp->cp_dpmem[up->smc_rbase]; - - return(!(rbdf->cbd_sc & BD_SC_EMPTY)); -} - -/* search for keyboard and register it if found */ -int drv_keyboard_init(void) -{ - int error = 0; - struct stdio_dev kbd_dev; - - if (0) { - /* register the keyboard */ - memset (&kbd_dev, 0, sizeof(struct stdio_dev)); - strcpy(kbd_dev.name, "kbd"); - kbd_dev.flags = DEV_FLAGS_INPUT | DEV_FLAGS_SYSTEM; - kbd_dev.putc = NULL; - kbd_dev.puts = NULL; - kbd_dev.getc = smc1_getc; - kbd_dev.tstc = smc1_tstc; - error = stdio_register (&kbd_dev); - } else { - lcd_is_enabled = 0; - lcd_disable(); - } - return error; -} diff --git a/board/rbc823/rbc823.c b/board/rbc823/rbc823.c deleted file mode 100644 index 5881111..0000000 --- a/board/rbc823/rbc823.c +++ /dev/null @@ -1,256 +0,0 @@ -/* - * (C) Copyright 2000 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include "mpc8xx.h" -#include <linux/mtd/doc2000.h> - -extern int kbd_init(void); -extern int drv_kbd_init(void); - -/* ------------------------------------------------------------------------- */ - -static long int dram_size (long int, long int *, long int); - -/* ------------------------------------------------------------------------- */ - -#define _NOT_USED_ 0xFFFFFFFF - -const uint sdram_table[] = -{ - /* - * Single Read. (Offset 0 in UPMA RAM) - */ - 0x1F07FC04, 0xEEAEFC04, 0x11ADFC04, 0xEFBBBC00, - 0x1FF77C47, /* last */ - /* - * SDRAM Initialization (offset 5 in UPMA RAM) - * - * This is no UPM entry point. The following definition uses - * the remaining space to establish an initialization - * sequence, which is executed by a RUN command. - * - */ - 0x1FF77C34, 0xEFEABC34, 0x1FB57C35, /* last */ - /* - * Burst Read. (Offset 8 in UPMA RAM) - */ - 0x1F07FC04, 0xEEAEFC04, 0x10ADFC04, 0xF0AFFC00, - 0xF0AFFC00, 0xF1AFFC00, 0xEFBBBC00, 0x1FF77C47, /* last */ - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - /* - * Single Write. (Offset 18 in UPMA RAM) - */ - 0x1F27FC04, 0xEEAEBC00, 0x01B93C04, 0x1FF77C47, /* last */ - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - /* - * Burst Write. (Offset 20 in UPMA RAM) - */ - 0x1F07FC04, 0xEEAEBC00, 0x10AD7C00, 0xF0AFFC00, - 0xF0AFFC00, 0xE1BBBC04, 0x1FF77C47, /* last */ - _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - /* - * Refresh (Offset 30 in UPMA RAM) - */ - 0x1FF5FC84, 0xFFFFFC04, 0xFFFFFC04, 0xFFFFFC04, - 0xFFFFFC84, 0xFFFFFC07, /* last */ - _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - /* - * Exception. (Offset 3c in UPMA RAM) - */ - 0x1FF7FC07, /* last */ - _NOT_USED_, _NOT_USED_, _NOT_USED_, -}; - -const uint static_table[] = -{ - /* - * Single Read. (Offset 0 in UPMA RAM) - */ - 0x0FFFFC04, 0x0FF3FC04, 0x0FF3CC04, 0x0FF3CC04, - 0x0FF3EC04, 0x0FF3CC00, 0x0FF7FC04, 0x3FFFFC04, - 0xFFFFFC04, 0xFFFFFC05, /* last */ - _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - /* - * Single Write. (Offset 18 in UPMA RAM) - */ - 0x0FFFFC04, 0x00FFFC04, 0x00FFFC04, 0x00FFFC04, - 0x01FFFC00, 0x3FFFFC04, 0xFFFFFC04, 0xFFFFFC05, /* last */ - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, -}; - -/* ------------------------------------------------------------------------- */ - -/* - * Check Board Identity: - * - * Test TQ ID string (TQM8xx...) - * If present, check for "L" type (no second DRAM bank), - * otherwise "L" type is assumed as default. - * - * Return 1 for "L" type, 0 else. - */ - -int checkboard (void) -{ - char buf[64]; - int i = getenv_f("serial#", buf, sizeof(buf)); - - if (i < 0 || strncmp(buf, "TQM8", 4)) { - printf ("### No HW ID - assuming RBC823\n"); - return (0); - } - - puts(buf); - putc('\n'); - - return (0); -} - -/* ------------------------------------------------------------------------- */ - -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_b0, size8, size9; - - upmconfig (UPMA, (uint *) sdram_table, - sizeof (sdram_table) / sizeof (uint)); - - /* - * 1 Bank of 64Mbit x 2 devices - */ - memctl->memc_mptpr = CONFIG_SYS_MPTPR_1BK_4K; - memctl->memc_mar = 0x00000088; - - /* - * Map controller SDRAM bank 0 - */ - memctl->memc_or4 = CONFIG_SYS_OR4_PRELIM; - memctl->memc_br4 = CONFIG_SYS_BR4_PRELIM; - memctl->memc_mamr = CONFIG_SYS_MAMR_8COL & (~(MAMR_PTAE)); /* no refresh yet */ - udelay (200); - - /* - * Perform SDRAM initializsation sequence - */ - memctl->memc_mcr = 0x80008105; /* SDRAM bank 0 */ - udelay (1); - memctl->memc_mamr = (CONFIG_SYS_MAMR_8COL & ~(MAMR_TLFA_MSK)) | MAMR_TLFA_8X; - udelay (200); - memctl->memc_mcr = 0x80008130; /* SDRAM bank 0 - execute twice */ - udelay (1); - memctl->memc_mamr = (CONFIG_SYS_MAMR_8COL & ~(MAMR_TLFA_MSK)) | MAMR_TLFA_4X; - udelay (200); - - memctl->memc_mamr |= MAMR_PTAE; /* enable refresh */ - udelay (1000); - - /* - * Preliminary prescaler for refresh (depends on number of - * banks): This value is selected for four cycles every 62.4 us - * with two SDRAM banks or four cycles every 31.2 us with one - * bank. It will be adjusted after memory sizing. - */ - memctl->memc_mptpr = CONFIG_SYS_MPTPR_2BK_4K; /* 16: but should be: CONFIG_SYS_MPTPR_1BK_4K */ - - /* - * Check Bank 0 Memory Size for re-configuration - * - * try 8 column mode - */ - size8 = dram_size (CONFIG_SYS_MAMR_8COL, (long *) SDRAM_BASE4_PRELIM, - SDRAM_MAX_SIZE); - udelay (1000); - - /* - * try 9 column mode - */ - size9 = dram_size (CONFIG_SYS_MAMR_9COL, (long *) SDRAM_BASE4_PRELIM, - SDRAM_MAX_SIZE); - - if (size8 < size9) { /* leave configuration at 9 columns */ - size_b0 = size9; -/* debug ("SDRAM Bank 0 in 9 column mode: %ld MB\n", size >> 20); */ - } else { /* back to 8 columns */ - size_b0 = size8; - memctl->memc_mamr = CONFIG_SYS_MAMR_8COL; - udelay (500); -/* debug ("SDRAM Bank 0 in 8 column mode: %ld MB\n", size >> 20); */ - } - - udelay (1000); - - /* - * Adjust refresh rate depending on SDRAM type, both banks - * For types > 128 MBit leave it at the current (fast) rate - */ - if ((size_b0 < 0x02000000)) { - /* reduce to 15.6 us (62.4 us / quad) */ - memctl->memc_mptpr = CONFIG_SYS_MPTPR_2BK_4K; - udelay (1000); - } - - /* SDRAM Bank 0 is bigger - map first */ - - memctl->memc_or4 = ((-size_b0) & 0xFFFF0000) | CONFIG_SYS_OR_TIMING_SDRAM; - memctl->memc_br4 = (CONFIG_SYS_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | BR_V; - - udelay (10000); - - return (size_b0); -} - -/* ------------------------------------------------------------------------- */ - -/* - * Check memory range for valid RAM. A simple memory test determines - * the actually available RAM size between addresses `base' and - * `base + maxsize'. Some (not all) hardware errors are detected: - * - short between address lines - * - short between data lines - */ - -static long int dram_size (long int mamr_value, long int *base, - long int maxsize) -{ - volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; - volatile memctl8xx_t *memctl = &immap->im_memctl; - - memctl->memc_mamr = mamr_value; - - return (get_ram_size (base, maxsize)); -} - -#ifdef CONFIG_CMD_DOC -void doc_init (void) -{ - volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; - volatile memctl8xx_t *memctl = &immap->im_memctl; - - upmconfig (UPMB, (uint *) static_table, - sizeof (static_table) / sizeof (uint)); - memctl->memc_mbmr = MAMR_DSA_1_CYCL; - - doc_probe (FLASH_BASE1_PRELIM); -} -#endif diff --git a/board/rbc823/u-boot.lds b/board/rbc823/u-boot.lds deleted file mode 100644 index 7676cf4..0000000 --- a/board/rbc823/u-boot.lds +++ /dev/null @@ -1,92 +0,0 @@ -/* - * (C) Copyright 2000-2010 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -OUTPUT_ARCH(powerpc) - -SECTIONS -{ - /* Read-only sections, merged into text segment: */ - . = + SIZEOF_HEADERS; - .text : - { - /* WARNING - the following is hand-optimized to fit within */ - /* the sector layout of our flash chips! XXX FIXME XXX */ - - arch/powerpc/cpu/mpc8xx/start.o (.text*) - arch/powerpc/cpu/mpc8xx/traps.o (.text*) - - lib/built-in.o (.text*) - net/built-in.o (.text*) - arch/powerpc/cpu/mpc8xx/built-in.o (.text*) - arch/powerpc/lib/built-in.o (.text*) - - . = env_offset; - common/env_embedded.o (.text*) - - *(.text*) - } - _etext = .; - PROVIDE (etext = .); - .rodata : - { - *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) - } - - /* Read-write section, merged into data segment: */ - . = (. + 0x00FF) & 0xFFFFFF00; - _erotext = .; - PROVIDE (erotext = .); - .reloc : - { - _GOT2_TABLE_ = .; - KEEP(*(.got2)) - KEEP(*(.got)) - PROVIDE(_GLOBAL_OFFSET_TABLE_ = . + 4); - _FIXUP_TABLE_ = .; - KEEP(*(.fixup)) - } - __got2_entries = ((_GLOBAL_OFFSET_TABLE_ - _GOT2_TABLE_) >> 2) - 1; - __fixup_entries = (. - _FIXUP_TABLE_)>>2; - - .data : - { - *(.data*) - *(.sdata*) - } - _edata = .; - PROVIDE (edata = .); - - . = .; - - . = ALIGN(4); - .u_boot_list : { - KEEP(*(SORT(.u_boot_list*))); - } - - . = .; - __start___ex_table = .; - __ex_table : { *(__ex_table) } - __stop___ex_table = .; - - . = ALIGN(256); - __init_begin = .; - .text.init : { *(.text.init) } - .data.init : { *(.data.init) } - . = ALIGN(256); - __init_end = .; - - __bss_start = .; - .bss (NOLOAD) : - { - *(.bss*) - *(.sbss*) - *(COMMON) - . = ALIGN(4); - } - __bss_end = . ; - PROVIDE (end = .); -} |