diff options
| -rw-r--r-- | board/armltd/versatile/Makefile | 2 | ||||
| -rw-r--r-- | board/armltd/versatile/flash.c | 514 | ||||
| -rw-r--r-- | include/configs/versatile.h | 65 |
3 files changed, 51 insertions, 530 deletions
diff --git a/board/armltd/versatile/Makefile b/board/armltd/versatile/Makefile index 044a42989..80a2c7e21 100644 --- a/board/armltd/versatile/Makefile +++ b/board/armltd/versatile/Makefile @@ -25,7 +25,7 @@ include $(TOPDIR)/config.mk LIB = $(obj)lib$(BOARD).a -COBJS := versatile.o flash.o +COBJS := versatile.o SOBJS := lowlevel_init.o SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) diff --git a/board/armltd/versatile/flash.c b/board/armltd/versatile/flash.c deleted file mode 100644 index 3bdc895ec..000000000 --- a/board/armltd/versatile/flash.c +++ /dev/null @@ -1,514 +0,0 @@ -/* - * (C) Copyright 2001 - * Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net - * - * (C) Copyright 2001-2004 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * (C) Copyright 2003 - * Texas Instruments, <www.ti.com> - * Kshitij Gupta <Kshitij@ti.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 - */ - -#include <common.h> -#include <linux/byteorder/swab.h> - -#define PHYS_FLASH_SECT_SIZE 0x00020000 /* 256 KB sectors (x2) */ -flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */ - -/* Board support for 1 or 2 flash devices */ -#define FLASH_PORT_WIDTH32 -#undef FLASH_PORT_WIDTH16 - -#ifdef FLASH_PORT_WIDTH16 -#define FLASH_PORT_WIDTH ushort -#define FLASH_PORT_WIDTHV vu_short -#define SWAP(x) __swab16(x) -#else -#define FLASH_PORT_WIDTH ulong -#define FLASH_PORT_WIDTHV vu_long -#define SWAP(x) __swab32(x) -#endif - -#define FPW FLASH_PORT_WIDTH -#define FPWV FLASH_PORT_WIDTHV - -#define mb() __asm__ __volatile__ ("" : : : "memory") - - -/* Flash Organization Structure */ -typedef struct OrgDef { - unsigned int sector_number; - unsigned int sector_size; -} OrgDef; - - -/* Flash Organizations */ -OrgDef OrgIntel_28F256K3[] = { - {256, 128 * 1024}, /* 256 * 128kBytes sectors */ -}; - - -/*----------------------------------------------------------------------- - * Functions - */ -unsigned long flash_init (void); -static ulong flash_get_size (FPW * addr, flash_info_t * info); -static int write_data (flash_info_t * info, ulong dest, FPW data); -static void flash_get_offsets (ulong base, flash_info_t * info); -void inline spin_wheel (void); -void flash_print_info (flash_info_t * info); -void flash_unprotect_sectors (FPWV * addr); -int flash_erase (flash_info_t * info, int s_first, int s_last); -int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt); - -/*----------------------------------------------------------------------- - */ - -static void flash_vpp(int on) -{ - unsigned int tmp; - - tmp = *(unsigned int *)(VERSATILE_FLASHCTRL); - - if (on) - tmp |= VERSATILE_FLASHPROG_FLVPPEN; - else - tmp &= ~VERSATILE_FLASHPROG_FLVPPEN; - - *(unsigned int *)(VERSATILE_FLASHCTRL) = tmp; -} - -unsigned long flash_init (void) -{ - int i; - ulong size = 0; - for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; i++) { - switch (i) { - case 0: - flash_vpp(1); - flash_get_size ((FPW *) PHYS_FLASH_1, &flash_info[i]); - flash_get_offsets (PHYS_FLASH_1, &flash_info[i]); - flash_vpp(0); - break; - default: - panic ("configured too many flash banks!\n"); - break; - } - size += flash_info[i].size; - } - - /* Protect monitor and environment sectors - */ - flash_protect (FLAG_PROTECT_SET, - CONFIG_SYS_FLASH_BASE, - CONFIG_SYS_FLASH_BASE + monitor_flash_len - 1, &flash_info[0]); - - return size; -} - -/*----------------------------------------------------------------------- - */ -static void flash_get_offsets (ulong base, flash_info_t * info) -{ - int i; - OrgDef *pOrgDef; - - pOrgDef = OrgIntel_28F256K3; - if (info->flash_id == FLASH_UNKNOWN) { - return; - } - - if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL) { - for (i = 0; i < info->sector_count; i++) { - if (i > 255) { - info->start[i] = base + (i * 0x8000); - info->protect[i] = 0; - } else { - info->start[i] = base + - (i * PHYS_FLASH_SECT_SIZE); - info->protect[i] = 0; - } - } - } -} - -/*----------------------------------------------------------------------- - */ -void flash_print_info (flash_info_t * info) -{ - int i; - - if (info->flash_id == FLASH_UNKNOWN) { - printf ("missing or unknown FLASH type\n"); - return; - } - - switch (info->flash_id & FLASH_VENDMASK) { - case FLASH_MAN_INTEL: - printf ("INTEL "); - break; - default: - printf ("Unknown Vendor "); - break; - } - - switch (info->flash_id & FLASH_TYPEMASK) { - case FLASH_28F256L18T: - printf ("FLASH 28F256L18T\n"); - break; - case FLASH_28F256K3: - printf ("FLASH 28F256K3\n"); - break; - default: - printf ("Unknown Chip Type\n"); - break; - } - - printf (" Size: %ld MB in %d Sectors\n", - info->size >> 20, info->sector_count); - - 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"); - return; -} - -/* - * The following code cannot be run from FLASH! - */ -static ulong flash_get_size (FPW * addr, flash_info_t * info) -{ - volatile FPW value; - - /* Write auto select command: read Manufacturer ID */ - addr[0x5555] = (FPW) 0x00AA00AA; - addr[0x2AAA] = (FPW) 0x00550055; - addr[0x5555] = (FPW) 0x00900090; - - mb (); - value = addr[0]; - switch (value) { - - case (FPW) INTEL_MANUFACT: - info->flash_id = FLASH_MAN_INTEL; - break; - - default: - info->flash_id = FLASH_UNKNOWN; - info->sector_count = 0; - info->size = 0; - addr[0] = (FPW) 0x00FF00FF; /* restore read mode */ - return (0); /* no or unknown flash */ - } - - mb (); - value = addr[1]; /* device ID */ - switch (value) { - - case (FPW) (INTEL_ID_28F256L18T): - info->flash_id += FLASH_28F256L18T; - info->sector_count = 259; - info->size = 0x02000000; - break; /* => 32 MB */ - - case (FPW)(INTEL_ID_28F256K3): - info->flash_id += FLASH_28F256K3; - info->sector_count = 256; - info->size = 0x02000000; - break; - - default: - info->flash_id = FLASH_UNKNOWN; - break; - } - - if (info->sector_count > CONFIG_SYS_MAX_FLASH_SECT) { - printf ("** ERROR: sector count %d > max (%d) **\n", - info->sector_count, CONFIG_SYS_MAX_FLASH_SECT); - info->sector_count = CONFIG_SYS_MAX_FLASH_SECT; - } - - addr[0] = (FPW) 0x00FF00FF; /* restore read mode */ - - return (info->size); -} - - -/* unprotects a sector for write and erase - * on some intel parts, this unprotects the entire chip, but it - * wont hurt to call this additional times per sector... - */ -void flash_unprotect_sectors (FPWV * addr) -{ -#define PD_FINTEL_WSMS_READY_MASK 0x0080 - - *addr = (FPW) 0x00500050; /* clear status register */ - - /* this sends the clear lock bit command */ - *addr = (FPW) 0x00600060; - *addr = (FPW) 0x00D000D0; -} - - -/*----------------------------------------------------------------------- - */ - -int flash_erase (flash_info_t * info, int s_first, int s_last) -{ - int flag, prot, sect; - ulong type, start, last; - int rcode = 0; - - 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; - } - - type = (info->flash_id & FLASH_VENDMASK); - if ((type != FLASH_MAN_INTEL)) { - printf ("Can't erase unknown flash type %08lx - aborted\n", - info->flash_id); - 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"); - } - - flash_vpp(1); - - start = get_timer (0); - last = start; - - /* Disable interrupts which might cause a timeout here */ - flag = disable_interrupts (); - - /* Start erase on unprotected sectors */ - for (sect = s_first; sect <= s_last; sect++) { - if (info->protect[sect] == 0) { /* not protected */ - FPWV *addr = (FPWV *) (info->start[sect]); - FPW status; - - printf ("Erasing sector %2d ... ", sect); - - flash_unprotect_sectors (addr); - - /* arm simple, non interrupt dependent timer */ - reset_timer_masked (); - - *addr = (FPW) 0x00500050;/* clear status register */ - *addr = (FPW) 0x00200020;/* erase setup */ - *addr = (FPW) 0x00D000D0;/* erase confirm */ - - while (((status = - *addr) & (FPW) 0x00800080) != - (FPW) 0x00800080) { - if (get_timer_masked () > - CONFIG_SYS_FLASH_ERASE_TOUT) { - printf ("Timeout\n"); - /* suspend erase */ - *addr = (FPW) 0x00B000B0; - /* reset to read mode */ - *addr = (FPW) 0x00FF00FF; - rcode = 1; - break; - } - } - - /* clear status register cmd. */ - *addr = (FPW) 0x00500050; - *addr = (FPW) 0x00FF00FF;/* resest to read mode */ - printf (" done\n"); - } - } - - flash_vpp(0); - - return rcode; -} - -/*----------------------------------------------------------------------- - * Copy memory to flash, returns: - * 0 - OK - * 1 - write timeout - * 2 - Flash not erased - * 4 - Flash not identified - */ - -int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt) -{ - ulong cp, wp; - FPW data; - int count, i, l, rc, port_width; - - if (info->flash_id == FLASH_UNKNOWN) { - return 4; - } -/* get lower word aligned address */ -#ifdef FLASH_PORT_WIDTH16 - wp = (addr & ~1); - port_width = 2; -#else - wp = (addr & ~3); - port_width = 4; -#endif - - flash_vpp(1); - - /* - * 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); - } - for (; i < port_width && cnt > 0; ++i) { - data = (data << 8) | *src++; - --cnt; - ++cp; - } - for (; cnt == 0 && i < port_width; ++i, ++cp) { - data = (data << 8) | (*(uchar *) cp); - } - - if ((rc = write_data (info, wp, SWAP (data))) != 0) { - flash_vpp(0); - return (rc); - } - wp += port_width; - } - - /* - * handle word aligned part - */ - count = 0; - while (cnt >= port_width) { - data = 0; - for (i = 0; i < port_width; ++i) { - data = (data << 8) | *src++; - } - if ((rc = write_data (info, wp, SWAP (data))) != 0) { - flash_vpp(0); - return (rc); - } - wp += port_width; - cnt -= port_width; - if (count++ > 0x800) { - spin_wheel (); - count = 0; - } - } - - if (cnt == 0) { - flash_vpp(0); - return (0); - } - - /* - * handle unaligned tail bytes - */ - data = 0; - for (i = 0, cp = wp; i < port_width && cnt > 0; ++i, ++cp) { - data = (data << 8) | *src++; - --cnt; - } - for (; i < port_width; ++i, ++cp) { - data = (data << 8) | (*(uchar *) cp); - } - - rc = write_data (info, wp, SWAP (data)); - - flash_vpp(0); - - return rc; -} - -/*----------------------------------------------------------------------- - * Write a word or halfword to Flash, returns: - * 0 - OK - * 1 - write timeout - * 2 - Flash not erased - */ -static int write_data (flash_info_t * info, ulong dest, FPW data) -{ - FPWV *addr = (FPWV *) dest; - ulong status; - int flag; - - /* Check if Flash is (sufficiently) erased */ - if ((*addr & data) != data) { - printf ("not erased at %08lx (%lx)\n", (ulong) addr, (ulong) *addr); - return (2); - } - - flash_vpp(1); - - flash_unprotect_sectors (addr); - /* Disable interrupts which might cause a timeout here */ - flag = disable_interrupts (); - *addr = (FPW) 0x00400040; /* write setup */ - *addr = data; - - /* arm simple, non interrupt dependent timer */ - reset_timer_masked (); - - /* wait while polling the status register */ - while (((status = *addr) & (FPW) 0x00800080) != (FPW) 0x00800080) { - if (get_timer_masked () > CONFIG_SYS_FLASH_WRITE_TOUT) { - *addr = (FPW) 0x00FF00FF; /* restore read mode */ - flash_vpp(0); - return (1); - } - } - *addr = (FPW) 0x00FF00FF; /* restore read mode */ - flash_vpp(0); - return (0); -} - -void inline spin_wheel (void) -{ - static int p = 0; - static char w[] = "\\/-"; - - printf ("\010%c", w[p]); - (++p == 3) ? (p = 0) : 0; -} diff --git a/include/configs/versatile.h b/include/configs/versatile.h index a53f80afb..a9b70cc36 100644 --- a/include/configs/versatile.h +++ b/include/configs/versatile.h @@ -167,13 +167,20 @@ #define CONFIG_NR_DRAM_BANKS 1 /* we have 1 bank of DRAM */ #define PHYS_SDRAM_1 0x00000000 /* SDRAM Bank #1 */ #define PHYS_SDRAM_1_SIZE 0x08000000 /* 128 MB */ - -#define CONFIG_SYS_FLASH_BASE 0x34000000 +#define PHYS_FLASH_SIZE 0x04000000 /* 64MB */ /*----------------------------------------------------------------------- * FLASH and environment organization */ - +/* + * Use the CFI flash driver for ease of use + */ +#define CONFIG_SYS_FLASH_CFI +#define CONFIG_FLASH_CFI_DRIVER +#define CONFIG_ENV_IS_IN_FLASH 1 +/* + * System control register + */ #define VERSATILE_SYS_BASE 0x10000000 #define VERSATILE_SYS_FLASH_OFFSET 0x4C #define VERSATILE_FLASHCTRL \ @@ -181,19 +188,47 @@ /* Enable writing to flash */ #define VERSATILE_FLASHPROG_FLVPPEN (1 << 0) -#define CONFIG_SYS_MAX_FLASH_BANKS 1 -#define PHYS_FLASH_SIZE 0x34000000 /* 64MB */ /* timeout values are in ticks */ -#define CONFIG_SYS_FLASH_ERASE_TOUT (20 * CONFIG_SYS_HZ) /* Erase Timeout */ -#define CONFIG_SYS_FLASH_WRITE_TOUT (20 * CONFIG_SYS_HZ) /* Write Timeout */ -#define CONFIG_SYS_MAX_FLASH_SECT (256) +#define CONFIG_SYS_FLASH_ERASE_TOUT (2 * CONFIG_SYS_HZ) /* Erase Timeout */ +#define CONFIG_SYS_FLASH_WRITE_TOUT (2 * CONFIG_SYS_HZ) /* Write Timeout */ + +/* + * Note that CONFIG_SYS_MAX_FLASH_SECT allows for a parameter block + * i.e. + * the bottom "sector" (bottom boot), or top "sector" + * (top boot), is a seperate erase region divided into + * 4 (equal) smaller sectors. This, notionally, allows + * quicker erase/rewrire of the most frequently changed + * area...... + * CONFIG_SYS_MAX_FLASH_SECT is padded up to a multiple of 4 + */ + +#ifdef CONFIG_ARCH_VERSATILE_AB +#define FLASH_SECTOR_SIZE 0x00020000 /* 128 KB sectors */ +#define CONFIG_ENV_SECT_SIZE (2 * FLASH_SECTOR_SIZE) +#define CONFIG_SYS_MAX_FLASH_SECT (520) +#endif + +#ifdef CONFIG_ARCH_VERSATILE_PB /* Versatile PB is default */ +#define FLASH_SECTOR_SIZE 0x00040000 /* 256 KB sectors */ +#define CONFIG_ENV_SECT_SIZE FLASH_SECTOR_SIZE +#define CONFIG_SYS_MAX_FLASH_SECT (260) +#endif + +#define CONFIG_SYS_FLASH_BASE 0x34000000 +#define CONFIG_SYS_MAX_FLASH_BANKS 1 + +#define CONFIG_SYS_MONITOR_LEN (4 * CONFIG_ENV_SECT_SIZE) + +/* The ARM Boot Monitor is shipped in the lowest sector of flash */ -#define PHYS_FLASH_1 (CONFIG_SYS_FLASH_BASE) +#define FLASH_TOP (CONFIG_SYS_FLASH_BASE + PHYS_FLASH_SIZE) +#define CONFIG_ENV_SIZE 8192 +#define CONFIG_ENV_ADDR (FLASH_TOP - CONFIG_ENV_SECT_SIZE) +#define CONFIG_ENV_OFFSET (CONFIG_ENV_ADDR - CONFIG_SYS_FLASH_BASE) +#define CONFIG_SYS_MONITOR_BASE (CONFIG_ENV_ADDR - CONFIG_SYS_MONITOR_LEN) -#define CONFIG_ENV_IS_IN_FLASH 1 /* env in flash */ -#define CONFIG_ENV_SECT_SIZE 0x00020000 /* 256 KB sectors (x2) */ -#define CONFIG_ENV_SIZE 0x10000 /* Size of Environment */ -#define CONFIG_ENV_OFFSET 0x01f00000 /* environment starts */ -#define CONFIG_ENV_ADDR (CONFIG_SYS_FLASH_BASE + CONFIG_ENV_OFFSET) +#define CONFIG_SYS_FLASH_PROTECTION /* The devices have real protection */ +#define CONFIG_SYS_FLASH_EMPTY_INFO /* flinfo indicates empty blocks */ -#endif /* __CONFIG_H */ +#endif /* __CONFIG_H */ |