* Patches by Robert Schwebel, 06 Mar 2003:

  - fix bug in BOOTP code (must use NetCopyIP)
  - update of CSB226 port
  - clear BSS segment on XScale
  - added support for i2c_init_board() function
  - update to the Innokom plattform

* Extend support for redundand environments for configurations where
  environment size < sector size

4 files changed, 234 insertions, 206 deletions

diff --git a/board/csb226/csb226.c b/board/csb226/csb226.c
index 0d99aa8..11cab00 100644
--- a/board/csb226/csb226.c
+++ b/board/csb226/csb226.c
@@ -32,10 +32,30 @@
 # define SHOW_BOOT_PROGRESS(arg)
 #endif
 
-/*
- * Miscelaneous platform dependent initialisations
+/** 
+ * misc_init_r: - misc initialisation routines
  */
 
+int misc_init_r(void)
+{
+	uchar *str;
+	
+	/* determine if the software update key is pressed during startup */
+#if 0	
+	/* not ported yet... */
+	if (GPLR0 & 0x00000800) {
+		printf("using bootcmd_normal (sw-update button not pressed)\n");
+		str = getenv("bootcmd_normal");
+	} else {
+		printf("using bootcmd_update (sw-update button pressed)\n");
+		str = getenv("bootcmd_update");
+	}
+
+	setenv("bootcmd",str);
+#endif	
+	return 0;
+}	
+
 
 /** 
  * board_init: - setup some data structures
diff --git a/board/csb226/flash.c b/board/csb226/flash.c
index 0b4e2f6..c6cb95e 100644
--- a/board/csb226/flash.c
+++ b/board/csb226/flash.c
@@ -45,44 +45,44 @@ flash_info_t    flash_info[CFG_MAX_FLASH_BANKS];
 
 ulong flash_init(void)
 {
-    int i, j;
-    ulong size = 0;
+	int i, j;
+	ulong size = 0;
 
 	for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) {
-	ulong flashbase = 0;
-	flash_info[i].flash_id =
-	  (INTEL_MANUFACT & FLASH_VENDMASK) |
-	  (INTEL_ID_28F128J3 & FLASH_TYPEMASK);
-	flash_info[i].size = FLASH_BANK_SIZE;
-	flash_info[i].sector_count = CFG_MAX_FLASH_SECT;
-	memset(flash_info[i].protect, 0, CFG_MAX_FLASH_SECT);
+		ulong flashbase = 0;
+		flash_info[i].flash_id =
+	  		(INTEL_MANUFACT & FLASH_VENDMASK) |
+	  		(INTEL_ID_28F128J3 & FLASH_TYPEMASK);
+		flash_info[i].size = FLASH_BANK_SIZE;
+		flash_info[i].sector_count = CFG_MAX_FLASH_SECT;
+		memset(flash_info[i].protect, 0, CFG_MAX_FLASH_SECT);
 
 		switch (i) {
-           case 0:
-	        flashbase = PHYS_FLASH_1;
-                break;
-           default:
-	        panic("configured to many flash banks!\n");
-                break;
-        }
+			case 0:
+				flashbase = PHYS_FLASH_1;
+				break;
+			default:
+				panic("configured to many flash banks!\n");
+				break;
+		}
 		for (j = 0; j < flash_info[i].sector_count; j++) {
-	    flash_info[i].start[j] = flashbase + j*MAIN_SECT_SIZE;
+			flash_info[i].start[j] = flashbase + j*MAIN_SECT_SIZE;
+		}
+		size += flash_info[i].size;
 	}
-	size += flash_info[i].size;
-    }
 
 	/* Protect monitor and environment sectors */
-    flash_protect(FLAG_PROTECT_SET,
-		  CFG_FLASH_BASE,
-		  CFG_FLASH_BASE + _armboot_end_data - _armboot_start,
-		  &flash_info[0]);
+	flash_protect(FLAG_PROTECT_SET,
+			CFG_FLASH_BASE,
+			CFG_FLASH_BASE + _armboot_end_data - _armboot_start,
+			&flash_info[0]);
 
-    flash_protect(FLAG_PROTECT_SET,
-		  CFG_ENV_ADDR,
-		  CFG_ENV_ADDR + CFG_ENV_SIZE - 1,
-		  &flash_info[0]);
+	flash_protect(FLAG_PROTECT_SET,
+			CFG_ENV_ADDR,
+			CFG_ENV_ADDR + CFG_ENV_SIZE - 1,
+			&flash_info[0]);
 
-    return size;
+	return size;
 }
 
 
@@ -94,43 +94,43 @@ ulong flash_init(void)
 
 void flash_print_info  (flash_info_t *info)
 {
-    int i, j;
+	int i, j;
 
 	for (j=0; j<CFG_MAX_FLASH_BANKS; j++) {
 
 		switch (info->flash_id & FLASH_VENDMASK) {
 
-        case (INTEL_MANUFACT & FLASH_VENDMASK):
-	        printf("Intel: ");
-	        break;
-        default:
-	        printf("Unknown Vendor ");
-	        break;
-        }
+			case (INTEL_MANUFACT & FLASH_VENDMASK):
+				printf("Intel: ");
+				break;
+			default:
+				printf("Unknown Vendor ");
+				break;
+		}
 
 		switch (info->flash_id & FLASH_TYPEMASK) {
 
-        case (INTEL_ID_28F128J3 & FLASH_TYPEMASK):
-	        printf("28F128J3 (128Mbit)\n");
-	        break;
-        default:
-	        printf("Unknown Chip Type\n");
+			case (INTEL_ID_28F128J3 & FLASH_TYPEMASK):
+				printf("28F128J3 (128Mbit)\n");
+				break;
+			default:
+				printf("Unknown Chip Type\n");
 				return;
-        }
+		}
 
-        printf("  Size: %ld MB in %d Sectors\n",
-	        info->size >> 20, info->sector_count);
+		printf("  Size: %ld MB in %d Sectors\n", 
+			info->size >> 20, info->sector_count);
 
-        printf("  Sector Start Addresses:");
+		printf("  Sector Start Addresses:");
 		for (i = 0; i < info->sector_count; i++) {
 			if ((i % 5) == 0) printf ("\n   ");
 	        
-	        printf (" %08lX%s", info->start[i],
-		        info->protect[i] ? " (RO)" : "     ");
-        }
-        printf ("\n");
-        info++;
-    }
+			printf (" %08lX%s", info->start[i],
+				info->protect[i] ? " (RO)" : "     ");
+		}
+		printf ("\n");
+		info++;
+	}
 }
 
 
@@ -139,46 +139,47 @@ void flash_print_info  (flash_info_t *info)
  *
  */
 
-int	flash_erase (flash_info_t *info, int s_first, int s_last)
+int flash_erase(flash_info_t *info, int s_first, int s_last)
 {
-    int flag, prot, sect;
-    int rc = ERR_OK;
+	int flag, prot, sect;
+	int rc = ERR_OK;
 
-    if (info->flash_id == FLASH_UNKNOWN)
-	return ERR_UNKNOWN_FLASH_TYPE;
+	if (info->flash_id == FLASH_UNKNOWN)
+		return ERR_UNKNOWN_FLASH_TYPE;
 
-    if ((s_first < 0) || (s_first > s_last)) {
-	return ERR_INVAL;
-    }
+	if ((s_first < 0) || (s_first > s_last)) {
+		return ERR_INVAL;
+	}
 
 	if ((info->flash_id & FLASH_VENDMASK) != (INTEL_MANUFACT & FLASH_VENDMASK))
-	return ERR_UNKNOWN_FLASH_VENDOR;
-
-    prot = 0;
-    for (sect=s_first; sect<=s_last; ++sect) {
+		return ERR_UNKNOWN_FLASH_VENDOR;
+	
+	prot = 0;
+	for (sect=s_first; sect<=s_last; ++sect) {
 		if (info->protect[sect]) prot++;
 	}
 
 	if (prot) return ERR_PROTECTED;
 
-    /*
-     * Disable interrupts which might cause a timeout
-     * here. Remember that our exception vectors are
-     * at address 0 in the flash, and we don't want a
-     * (ticker) exception to happen while the flash
-     * chip is in programming mode.
-     */
-    flag = disable_interrupts();
+	/*
+	 * Disable interrupts which might cause a timeout
+	 * here. Remember that our exception vectors are
+	 * at address 0 in the flash, and we don't want a
+	 * (ticker) exception to happen while the flash
+	 * chip is in programming mode.
+	 */
 
-    /* Start erase on unprotected sectors */
-    for (sect = s_first; sect<=s_last && !ctrlc(); sect++) {
+	flag = disable_interrupts();
 
-	printf("Erasing sector %2d ... ", sect);
+	/* Start erase on unprotected sectors */
+	for (sect = s_first; sect<=s_last && !ctrlc(); sect++) {
 
-	/* arm simple, non interrupt dependent timer */
-	reset_timer_masked();
+		printf("Erasing sector %2d ... ", sect);
 
-	if (info->protect[sect] == 0) {	/* not protected */
+		/* arm simple, non interrupt dependent timer */
+		reset_timer_masked();
+
+		if (info->protect[sect] == 0) {	/* not protected */
 			u32 * volatile addr = (u32 * volatile)(info->start[sect]);
 
 			/* erase sector:                                    */
@@ -190,32 +191,32 @@ int	flash_erase (flash_info_t *info, int s_first, int s_last)
 			*addr = 0x00D000D0;	/* erase confirm */
 
 			while ((*addr & 0x00800080) != 0x00800080) {
-		if (get_timer_masked() > CFG_FLASH_ERASE_TOUT) {
+				if (get_timer_masked() > CFG_FLASH_ERASE_TOUT) {
 					*addr = 0x00B000B0; /* suspend erase*/
 					*addr = 0x00FF00FF; /* read mode    */
-		    rc = ERR_TIMOUT;
-		    goto outahere;
-		}
-	    }
+					rc = ERR_TIMOUT;
+					goto outahere;
+				}
+			}
 
 			*addr = 0x00500050; /* clear status register cmd.   */
 			*addr = 0x00FF00FF; /* resest to read mode          */
 
-	}
+		}
 		
-	printf("ok.\n");
-    }
+		printf("ok.\n");
+	}
 
 	if (ctrlc()) printf("User Interrupt!\n");
 
-outahere:
+	outahere:
 
-    /* allow flash to settle - wait 10 ms */
-    udelay_masked(10000);
+	/* allow flash to settle - wait 10 ms */
+	udelay_masked(10000);
 
 	if (flag) enable_interrupts();
 
-    return rc;
+	return rc;
 }
 
 
@@ -230,71 +231,71 @@ outahere:
 
 static int write_word (flash_info_t *info, ulong dest, ushort data)
 {
-    ushort *addr = (ushort *)dest, val;
-    int rc = ERR_OK;
-    int flag;
+	u32 * volatile addr = (u32 * volatile)dest, val;
+	int rc = ERR_OK;
+	int flag;
 
 	/* Check if Flash is (sufficiently) erased */
 	if ((*addr & data) != data) return ERR_NOT_ERASED;
 
-    /*
-     * Disable interrupts which might cause a timeout
-     * here. Remember that our exception vectors are
-     * at address 0 in the flash, and we don't want a
-     * (ticker) exception to happen while the flash
-     * chip is in programming mode.
-     */
-    flag = disable_interrupts();
+	/*
+	 * Disable interrupts which might cause a timeout
+	 * here. Remember that our exception vectors are
+	 * at address 0 in the flash, and we don't want a
+	 * (ticker) exception to happen while the flash
+	 * chip is in programming mode.
+	 */
+	flag = disable_interrupts();
 
-    /* clear status register command */
-    *addr = 0x50;
+	/* clear status register command */
+	*addr = 0x50;
 
-    /* program set-up command */
-    *addr = 0x40;
+	/* program set-up command */
+	*addr = 0x40;
 
-    /* latch address/data */
-    *addr = data;
+	/* latch address/data */
+	*addr = data;
 
-    /* arm simple, non interrupt dependent timer */
-    reset_timer_masked();
+	/* arm simple, non interrupt dependent timer */
+	reset_timer_masked();
 
-    /* wait while polling the status register */
+	/* wait while polling the status register */
 	while(((val = *addr) & 0x80) != 0x80) {
-	if (get_timer_masked() > CFG_FLASH_WRITE_TOUT) {
-	    rc = ERR_TIMOUT;
+		if (get_timer_masked() > CFG_FLASH_WRITE_TOUT) {
+			rc = ERR_TIMOUT;
 			*addr = 0xB0; /* suspend program command */
-	    goto outahere;
+			goto outahere;
+		}
 	}
-    }
-
-    if(val & 0x1A) {	/* check for error */
-        printf("\nFlash write error %02x at address %08lx\n",
-    	   (int)val, (unsigned long)dest);
-        if(val & (1<<3)) {
-	    printf("Voltage range error.\n");
-	    rc = ERR_PROG_ERROR;
-	    goto outahere;
-        }
-        if(val & (1<<1)) {
-	    printf("Device protect error.\n");
-	    rc = ERR_PROTECTED;
-	    goto outahere;
-        }
-        if(val & (1<<4)) {
-	    printf("Programming error.\n");
-	    rc = ERR_PROG_ERROR;
-	    goto outahere;
-        }
-        rc = ERR_PROG_ERROR;
-        goto outahere;
-    }
-
-outahere:
+
+	if(val & 0x1A) {	/* check for error */
+		printf("\nFlash write error %02x at address %08lx\n",
+			(int)val, (unsigned long)dest);
+		if(val & (1<<3)) {
+			printf("Voltage range error.\n");
+			rc = ERR_PROG_ERROR;
+			goto outahere;
+		}
+		if(val & (1<<1)) {
+			printf("Device protect error.\n");
+			rc = ERR_PROTECTED;
+			goto outahere;
+		}
+		if(val & (1<<4)) {
+			printf("Programming error.\n");
+			rc = ERR_PROG_ERROR;
+			goto outahere;
+		}
+		rc = ERR_PROG_ERROR;
+		goto outahere;
+	}
+
+	outahere:
 
 	*addr = 0xFF; /* read array command */
 	if (flag) enable_interrupts();
 
-    return rc;
+	return rc;
 }
 
 
@@ -311,63 +312,64 @@ outahere:
 
 int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
 {
-    ulong cp, wp;
-    ushort data;
-    int l;
-    int i, rc;
-
-    wp = (addr & ~1);	/* get lower word aligned address */
+	ulong cp, wp;
+	ushort data;
+	int l;
+	int i, rc;
+
+	wp = (addr & ~1);	/* get lower word aligned address */
+
+	/*
+	 * handle unaligned start bytes
+	 */
+	if ((l = addr - wp) != 0) {
+		data = 0;
+		for (i=0, cp=wp; i<l; ++i, ++cp) {
+			data = (data >> 8) | (*(uchar *)cp << 8);
+		}
+		for (; i<2 && cnt>0; ++i) {
+			data = (data >> 8) | (*src++ << 8);
+			--cnt;
+			++cp;
+		}
+		for (; cnt==0 && i<2; ++i, ++cp) {
+			data = (data >> 8) | (*(uchar *)cp << 8);
+		}
 
-    /*
-     * handle unaligned start bytes
-     */
-    if ((l = addr - wp) != 0) {
-	data = 0;
-	for (i=0, cp=wp; i<l; ++i, ++cp) {
-	    data = (data >> 8) | (*(uchar *)cp << 8);
-	}
-	for (; i<2 && cnt>0; ++i) {
-	    data = (data >> 8) | (*src++ << 8);
-	    --cnt;
-	    ++cp;
-	}
-	for (; cnt==0 && i<2; ++i, ++cp) {
-	    data = (data >> 8) | (*(uchar *)cp << 8);
+		if ((rc = write_word(info, wp, data)) != 0) {
+			return (rc);
+		}
+		wp += 2;
 	}
 
-	if ((rc = write_word(info, wp, data)) != 0) {
-	    return (rc);
-	}
-	wp += 2;
-    }
-
-    /*
-     * handle word aligned part
-     */
-    while (cnt >= 2) {
-	/* data = *((vushort*)src); */
-	data = *((ushort*)src);
-	if ((rc = write_word(info, wp, data)) != 0) {
-	    return (rc);
+	/*
+	 * handle word aligned part
+	 */
+	while (cnt >= 2) {
+		/* data = *((vushort*)src); */
+		data = *((ushort*)src);
+		if ((rc = write_word(info, wp, data)) != 0) {
+			return (rc);
+		}
+		src += 2;
+		wp  += 2;
+		cnt -= 2;
 	}
-	src += 2;
-	wp  += 2;
-	cnt -= 2;
-    }
 
 	if (cnt == 0) return ERR_OK;
 
-    /*
-     * handle unaligned tail bytes
-     */
-    data = 0;
-    for (i=0, cp=wp; i<2 && cnt>0; ++i, ++cp) {
-	data = (data >> 8) | (*src++ << 8);
-	--cnt;
-    }
-    for (; i<2; ++i, ++cp) {
-	data = (data >> 8) | (*(uchar *)cp << 8);
-    }
-
-    return write_word(info, wp, data);
+	/*
+	 * handle unaligned tail bytes
+	 */
+	data = 0;
+	for (i=0, cp=wp; i<2 && cnt>0; ++i, ++cp) {
+		data = (data >> 8) | (*src++ << 8);
+		--cnt;
+	}
+	for (; i<2; ++i, ++cp) {
+		data = (data >> 8) | (*(uchar *)cp << 8);
+	}
+
+	return write_word(info, wp, data);
 }
+
diff --git a/board/csb226/memsetup.S b/board/csb226/memsetup.S
index d34ead4..6567184 100644
--- a/board/csb226/memsetup.S
+++ b/board/csb226/memsetup.S
@@ -313,16 +313,22 @@ mem_init:
 	/*          documented in SDRAM data sheets. The address(es) used   */
 	/*          for this purpose must not be cacheable.                 */
 
-	ldr	r3,	=CFG_DRAM_BASE
-	str	r2,	[r3]
-	str	r2,	[r3]
-	str	r2,	[r3]
-	str	r2,	[r3]
-	str	r2,	[r3]
-	str	r2,	[r3]
-	str	r2,	[r3]
-	str	r2,	[r3]
+	/*          There should 9 writes, since the first write doesn't    */
+	/*          trigger a refresh cycle on PXA250. See Intel PXA250 and */
+	/*          PXA210 Processors Specification Update,                 */
+	/*          Jan 2003, Errata #116, page 30.                         */
+
 
+	ldr	r3,	=CFG_DRAM_BASE
+	str	r2, [r3]
+	str	r2, [r3]
+	str	r2, [r3]
+	str	r2, [r3]
+	str	r2, [r3]
+	str	r2, [r3]
+	str	r2, [r3]
+	str	r2, [r3]
+	str	r2, [r3]
 
 	/* Step 4g: Write MDCNFG with enable bits asserted                  */
 	/*          (MDCNFG:DEx set to 1).                                  */
@@ -339,7 +345,6 @@ mem_init:
 
 	/* We are finished with Intel's memory controller initialisation    */
 
-
 	/* ---------------------------------------------------------------- */
 	/* Disable (mask) all interrupts at interrupt controller            */
 	/* ---------------------------------------------------------------- */
@@ -378,10 +383,11 @@ initclks:
         str     r2,  [r1]
 
 	/* enable the 32Khz oscillator for RTC and PowerManager             */
+/*
         ldr     r1,  =OSCC
         mov     r2,  #OSCC_OON
         str     r2,  [r1]
-
+*/
 	/* NOTE:  spin here until OSCC.OOK get set, meaning the PLL         */
 	/* has settled.                                                     */
 60:
@@ -404,8 +410,7 @@ initclks:
 
 	/* FIXME */
 
-#define NODEBUG
-#ifdef NODEBUG
+#ifndef DEBUG
 	/*Disable software and data breakpoints */
 	mov	r0,#0
 	mcr	p15,0,r0,c14,c8,0  /* ibcr0 */
@@ -415,7 +420,6 @@ initclks:
 	/*Enable all debug functionality */
 	mov	r0,#0x80000000
 	mcr	p14,0,r0,c10,c0,0  /* dcsr */
-
 #endif
 
         /* ---------------------------------------------------------------- */
diff --git a/board/csb226/u-boot.lds b/board/csb226/u-boot.lds
index 0a89b32..280fc48 100644
--- a/board/csb226/u-boot.lds
+++ b/board/csb226/u-boot.lds
@@ -47,7 +47,9 @@ SECTIONS
 	armboot_end_data = .;
 
         . = ALIGN(4);
+	bss_start = .;
         .bss : { *(.bss) }
+	bss_end = .;
 
 	armboot_end = .;
 }