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-rw-r--r--board/cmc_pu2/Makefile2
-rw-r--r--board/cmc_pu2/at91rm9200dk.c118
-rw-r--r--board/cmc_pu2/cmc_pu2.c67
-rw-r--r--board/cmc_pu2/config.mk2
-rw-r--r--board/cmc_pu2/flash.c672
-rw-r--r--board/cmc_pu2/memsetup.S25
6 files changed, 394 insertions, 492 deletions
diff --git a/board/cmc_pu2/Makefile b/board/cmc_pu2/Makefile
index f94bd99..a939bbb 100644
--- a/board/cmc_pu2/Makefile
+++ b/board/cmc_pu2/Makefile
@@ -25,7 +25,7 @@ include $(TOPDIR)/config.mk
LIB = lib$(BOARD).a
-OBJS := at91rm9200dk.o at45.o dm9161.o flash.o
+OBJS := cmc_pu2.o at45.o dm9161.o flash.o
SOBJS := memsetup.o
$(LIB): $(OBJS) $(SOBJS)
diff --git a/board/cmc_pu2/at91rm9200dk.c b/board/cmc_pu2/at91rm9200dk.c
deleted file mode 100644
index 606ea48..0000000
--- a/board/cmc_pu2/at91rm9200dk.c
+++ /dev/null
@@ -1,118 +0,0 @@
-/*
- * (C) Copyright 2002
- * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
- * Marius Groeger <mgroeger@sysgo.de>
- *
- * 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 <asm/arch/AT91RM9200.h>
-
-/* ------------------------------------------------------------------------- */
-/*
- * Miscelaneous platform dependent initialisations
- */
-
-int board_init (void)
-{
- DECLARE_GLOBAL_DATA_PTR;
-
- /* Enable Ctrlc */
- console_init_f ();
-
- /* Correct IRDA resistor problem */
- /* Set PA23_TXD in Output */
- (AT91PS_PIO) AT91C_BASE_PIOA->PIO_OER = AT91C_PA23_TXD2;
-
- /* memory and cpu-speed are setup before relocation */
- /* so we do _nothing_ here */
-
- /* arch number of AT91RM9200DK-Board */
- gd->bd->bi_arch_number = 251;
- /* adress of boot parameters */
- gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
-
- return 0;
-}
-
-int dram_init (void)
-{
- DECLARE_GLOBAL_DATA_PTR;
-
- gd->bd->bi_dram[0].start = PHYS_SDRAM;
- gd->bd->bi_dram[0].size = PHYS_SDRAM_SIZE;
- return 0;
-}
-
-/*
- * Disk On Chip (NAND) Millenium initialization.
- * The NAND lives in the CS2* space
- */
-#if (CONFIG_COMMANDS & CFG_CMD_NAND)
-extern ulong nand_probe (ulong physadr);
-
-#define AT91_SMARTMEDIA_BASE 0x40000000 /* physical address to access memory on NCS3 */
-void nand_init (void)
-{
- /* Setup Smart Media, fitst enable the address range of CS3 */
- *AT91C_EBI_CSA |= AT91C_EBI_CS3A_SMC_SmartMedia;
- /* set the bus interface characteristics based on
- tDS Data Set up Time 30 - ns
- tDH Data Hold Time 20 - ns
- tALS ALE Set up Time 20 - ns
- 16ns at 60 MHz ~= 3 */
-/*memory mapping structures */
-#define SM_ID_RWH (5 << 28)
-#define SM_RWH (1 << 28)
-#define SM_RWS (0 << 24)
-#define SM_TDF (1 << 8)
-#define SM_NWS (3)
- AT91C_BASE_SMC2->SMC2_CSR[3] = (SM_RWH | SM_RWS |
- AT91C_SMC2_ACSS_STANDARD | AT91C_SMC2_DBW_8 |
- SM_TDF | AT91C_SMC2_WSEN | SM_NWS);
-
- /* enable the SMOE line PC0=SMCE, A21=CLE, A22=ALE */
- *AT91C_PIOC_ASR = AT91C_PC0_BFCK | AT91C_PC1_BFRDY_SMOE |
- AT91C_PC3_BFBAA_SMWE;
- *AT91C_PIOC_PDR = AT91C_PC0_BFCK | AT91C_PC1_BFRDY_SMOE |
- AT91C_PC3_BFBAA_SMWE;
-
- /* Configure PC2 as input (signal READY of the SmartMedia) */
- *AT91C_PIOC_PER = AT91C_PC2_BFAVD; /* enable direct output enable */
- *AT91C_PIOC_ODR = AT91C_PC2_BFAVD; /* disable output */
-
- /* Configure PB1 as input (signal Card Detect of the SmartMedia) */
- *AT91C_PIOB_PER = AT91C_PIO_PB1; /* enable direct output enable */
- *AT91C_PIOB_ODR = AT91C_PIO_PB1; /* disable output */
-
- /* PIOB and PIOC clock enabling */
- *AT91C_PMC_PCER = 1 << AT91C_ID_PIOB;
- *AT91C_PMC_PCER = 1 << AT91C_ID_PIOC;
-
- if (*AT91C_PIOB_PDSR & AT91C_PIO_PB1)
- printf (" No SmartMedia card inserted\n");
-#ifdef DEBUG
- printf (" SmartMedia card inserted\n");
-
- printf ("Probing at 0x%.8x\n", AT91_SMARTMEDIA_BASE);
-#endif
- printf ("%4lu MB\n", nand_probe(AT91_SMARTMEDIA_BASE) >> 20);
-}
-#endif
diff --git a/board/cmc_pu2/cmc_pu2.c b/board/cmc_pu2/cmc_pu2.c
new file mode 100644
index 0000000..f914d42
--- /dev/null
+++ b/board/cmc_pu2/cmc_pu2.c
@@ -0,0 +1,67 @@
+/*
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger@sysgo.de>
+ *
+ * Modified for CMC_PU2 (removed Smart Media support) by Gary Jennejohn
+ * (2004) garyj@denx.de
+ *
+ * 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 <asm/mach-types.h>
+#include <asm/arch/AT91RM9200.h>
+
+/* ------------------------------------------------------------------------- */
+/*
+ * Miscelaneous platform dependent initialisations
+ */
+
+int board_init (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ /* Enable Ctrlc */
+ console_init_f ();
+
+ /* Correct IRDA resistor problem */
+ /* Set PA23_TXD in Output */
+ (AT91PS_PIO) AT91C_BASE_PIOA->PIO_OER = AT91C_PA23_TXD2;
+
+ /* memory and cpu-speed are setup before relocation */
+ /* so we do _nothing_ here */
+
+ /* arch number of CMC_PU2-Board */
+ /* gd->bd->bi_arch_number = MACH_TYPE_CMC_PU2; */
+ gd->bd->bi_arch_number = 251;
+ /* adress of boot parameters */
+ gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
+
+ return 0;
+}
+
+int dram_init (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ gd->bd->bi_dram[0].start = PHYS_SDRAM;
+ gd->bd->bi_dram[0].size = PHYS_SDRAM_SIZE;
+ return 0;
+}
diff --git a/board/cmc_pu2/config.mk b/board/cmc_pu2/config.mk
index 9ce161e..9fef739 100644
--- a/board/cmc_pu2/config.mk
+++ b/board/cmc_pu2/config.mk
@@ -1 +1 @@
-TEXT_BASE = 0x21f00000
+TEXT_BASE = 0x20f00000
diff --git a/board/cmc_pu2/flash.c b/board/cmc_pu2/flash.c
index 5220fcf..9baa473 100644
--- a/board/cmc_pu2/flash.c
+++ b/board/cmc_pu2/flash.c
@@ -1,11 +1,12 @@
/*
- * (C) Copyright 2002
- * Lineo, Inc. <www.lineo.com>
- * Bernhard Kuhn <bkuhn@lineo.com>
+ * (C) Copyright 2003-2004
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
- * (C) Copyright 2002
- * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
- * Alex Zuepke <azu@sysgo.de>
+ * (C) Copyright 2004
+ * Martin Krause, TQ-Systems GmbH, martin.krause@tqs.de
+ *
+ * Modified for the CMC PU2 by (C) Copyright 2004 Gary Jennejohn
+ * garyj@denx.de
*
* See file CREDITS for list of people who contributed to this
* project.
@@ -28,444 +29,339 @@
#include <common.h>
-ulong myflush(void);
-
-
-/* Flash Organization Structure */
-typedef struct OrgDef
-{
- unsigned int sector_number;
- unsigned int sector_size;
-} OrgDef;
-
-
-/* Flash Organizations */
-OrgDef OrgAT49BV16x4[] =
-{
- { 8, 8*1024 }, /* 8 * 8 kBytes sectors */
- { 2, 32*1024 }, /* 2 * 32 kBytes sectors */
- { 30, 64*1024 }, /* 30 * 64 kBytes sectors */
-};
-
-OrgDef OrgAT49BV16x4A[] =
-{
- { 8, 8*1024 }, /* 8 * 8 kBytes sectors */
- { 31, 64*1024 }, /* 31 * 64 kBytes sectors */
-};
-
-OrgDef OrgAT49BV6416[] =
-{
- { 8, 8*1024 }, /* 8 * 8 kBytes sectors */
- { 127, 64*1024 }, /* 127 * 64 kBytes sectors */
-};
-
-flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
-
-/* AT49BV1614A Codes */
-#define FLASH_CODE1 0xAA
-#define FLASH_CODE2 0x55
-#define ID_IN_CODE 0x90
-#define ID_OUT_CODE 0xF0
-
-
-#define CMD_READ_ARRAY 0x00F0
-#define CMD_UNLOCK1 0x00AA
-#define CMD_UNLOCK2 0x0055
-#define CMD_ERASE_SETUP 0x0080
-#define CMD_ERASE_CONFIRM 0x0030
-#define CMD_PROGRAM 0x00A0
-#define CMD_UNLOCK_BYPASS 0x0020
-#define CMD_SECTOR_UNLOCK 0x0070
+flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
-#define MEM_FLASH_ADDR1 (*(volatile u16 *)(CFG_FLASH_BASE + (0x00005555<<1)))
-#define MEM_FLASH_ADDR2 (*(volatile u16 *)(CFG_FLASH_BASE + (0x00002AAA<<1)))
+/*
+ * CPU to flash interface is 32-bit, so make declaration accordingly
+ */
+typedef unsigned short FLASH_PORT_WIDTH;
+typedef volatile unsigned short FLASH_PORT_WIDTHV;
-#define BIT_ERASE_DONE 0x0080
-#define BIT_RDY_MASK 0x0080
-#define BIT_PROGRAM_ERROR 0x0020
-#define BIT_TIMEOUT 0x80000000 /* our flag */
+#define FPW FLASH_PORT_WIDTH
+#define FPWV FLASH_PORT_WIDTHV
-#define READY 1
-#define ERR 2
-#define TMO 4
+#define FLASH_CYCLE1 0x0555
+#define FLASH_CYCLE2 0x02aa
/*-----------------------------------------------------------------------
+ * Functions
*/
-void flash_identification (flash_info_t * info)
-{
- volatile u16 manuf_code, device_code, add_device_code;
-
- MEM_FLASH_ADDR1 = FLASH_CODE1;
- MEM_FLASH_ADDR2 = FLASH_CODE2;
- MEM_FLASH_ADDR1 = ID_IN_CODE;
-
- manuf_code = *(volatile u16 *) CFG_FLASH_BASE;
- device_code = *(volatile u16 *) (CFG_FLASH_BASE + 2);
- add_device_code = *(volatile u16 *) (CFG_FLASH_BASE + (3 << 1));
+static ulong flash_get_size(FPWV *addr, flash_info_t *info);
+static void flash_reset(flash_info_t *info);
+static int write_word_amd(flash_info_t *info, FPWV *dest, FPW data);
+static flash_info_t *flash_get_info(ulong base);
- MEM_FLASH_ADDR1 = FLASH_CODE1;
- MEM_FLASH_ADDR2 = FLASH_CODE2;
- MEM_FLASH_ADDR1 = ID_OUT_CODE;
-
- /* Vendor type */
- info->flash_id = ATM_MANUFACT & FLASH_VENDMASK;
- printf ("Atmel: ");
-
- if ((device_code & FLASH_TYPEMASK) == (ATM_ID_BV1614 & FLASH_TYPEMASK)) {
-
- if ((add_device_code & FLASH_TYPEMASK) ==
- (ATM_ID_BV1614A & FLASH_TYPEMASK)) {
- info->flash_id |= ATM_ID_BV1614A & FLASH_TYPEMASK;
- printf ("AT49BV1614A (16Mbit)\n");
- } else { /* AT49BV1614 Flash */
- info->flash_id |= ATM_ID_BV1614 & FLASH_TYPEMASK;
- printf ("AT49BV1614 (16Mbit)\n");
- }
-
- } else if ((device_code & FLASH_TYPEMASK) == (ATM_ID_BV6416 & FLASH_TYPEMASK)) {
- info->flash_id |= ATM_ID_BV6416 & FLASH_TYPEMASK;
- printf ("AT49BV6416 (64Mbit)\n");
- }
-}
-
-ushort flash_number_sector(OrgDef *pOrgDef, unsigned int nb_blocks)
+/*-----------------------------------------------------------------------
+ * flash_init()
+ *
+ * sets up flash_info and returns size of FLASH (bytes)
+ */
+unsigned long flash_init (void)
{
- int i, nb_sectors = 0;
-
- for (i=0; i<nb_blocks; i++){
- nb_sectors += pOrgDef[i].sector_number;
- }
-
- return nb_sectors;
+ unsigned long size = 0;
+ ulong flashbase = CFG_FLASH_BASE;
+
+ /* Init: no FLASHes known */
+ memset(&flash_info[0], 0, sizeof(flash_info_t));
+
+ flash_info[0].size =
+ flash_get_size((FPW *)flashbase, &flash_info[0]);
+
+ size = flash_info[0].size;
+
+#if CFG_MONITOR_BASE >= CFG_FLASH_BASE
+ /* monitor protection ON by default */
+ flash_protect(FLAG_PROTECT_SET,
+ CFG_MONITOR_BASE,
+ CFG_MONITOR_BASE+monitor_flash_len-1,
+ flash_get_info(CFG_MONITOR_BASE));
+#endif
+
+#ifdef CFG_ENV_IS_IN_FLASH
+ /* ENV protection ON by default */
+ flash_protect(FLAG_PROTECT_SET,
+ CFG_ENV_ADDR,
+ CFG_ENV_ADDR+CFG_ENV_SIZE-1,
+ flash_get_info(CFG_ENV_ADDR));
+#endif
+
+ return size ? size : 1;
}
-void flash_unlock_sector(flash_info_t * info, unsigned int sector)
+/*-----------------------------------------------------------------------
+ */
+static void flash_reset(flash_info_t *info)
{
- volatile u16 *addr = (volatile u16 *) (info->start[sector]);
+ FPWV *base = (FPWV *)(info->start[0]);
- MEM_FLASH_ADDR1 = CMD_UNLOCK1;
- *addr = CMD_SECTOR_UNLOCK;
+ /* Put FLASH back in read mode */
+ if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL)
+ *base = (FPW)0x00FF00FF; /* Intel Read Mode */
+ else if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_AMD)
+ *base = (FPW)0x00F000F0; /* AMD Read Mode */
}
+/*-----------------------------------------------------------------------
+ */
-ulong flash_init (void)
+static flash_info_t *flash_get_info(ulong base)
{
- int i, j, k;
- unsigned int flash_nb_blocks, sector;
- unsigned int start_address;
- OrgDef *pOrgDef;
-
- ulong size = 0;
-
- for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) {
- ulong flashbase = 0;
-
- flash_identification (&flash_info[i]);
-
- if ((flash_info[i].flash_id & FLASH_TYPEMASK) ==
- (ATM_ID_BV1614 & FLASH_TYPEMASK)) {
-
- pOrgDef = OrgAT49BV16x4;
- flash_nb_blocks = sizeof (OrgAT49BV16x4) / sizeof (OrgDef);
- } else if ((flash_info[i].flash_id & FLASH_TYPEMASK) ==
- (ATM_ID_BV1614A & FLASH_TYPEMASK)){ /* AT49BV1614A Flash */
-
- pOrgDef = OrgAT49BV16x4A;
- flash_nb_blocks = sizeof (OrgAT49BV16x4A) / sizeof (OrgDef);
- } else if ((flash_info[i].flash_id & FLASH_TYPEMASK) ==
- (ATM_ID_BV6416 & FLASH_TYPEMASK)){ /* AT49BV6416 Flash */
-
- pOrgDef = OrgAT49BV6416;
- flash_nb_blocks = sizeof (OrgAT49BV6416) / sizeof (OrgDef);
- } else {
- flash_nb_blocks = 0;
- pOrgDef = OrgAT49BV16x4;
- }
-
- flash_info[i].sector_count = flash_number_sector(pOrgDef, flash_nb_blocks);
- memset (flash_info[i].protect, 0, flash_info[i].sector_count);
-
- if (i == 0)
- flashbase = PHYS_FLASH_1;
- else
- panic ("configured too many flash banks!\n");
-
- sector = 0;
- start_address = flashbase;
- flash_info[i].size = 0;
-
- for (j = 0; j < flash_nb_blocks; j++) {
- for (k = 0; k < pOrgDef[j].sector_number; k++) {
- flash_info[i].start[sector++] = start_address;
- start_address += pOrgDef[j].sector_size;
- flash_info[i].size += pOrgDef[j].sector_size;
- }
- }
-
- size += flash_info[i].size;
-
- if ((flash_info[i].flash_id & FLASH_TYPEMASK) ==
- (ATM_ID_BV6416 & FLASH_TYPEMASK)){ /* AT49BV6416 Flash */
+ int i;
+ flash_info_t * info;
- /* Unlock all sectors at reset */
- for (j=0; j<flash_info[i].sector_count; j++){
- flash_unlock_sector(&flash_info[i], j);
- }
- }
+ info = NULL;
+ for (i = 0; i < CFG_MAX_FLASH_BANKS; i ++) {
+ info = & flash_info[i];
+ if (info->size && info->start[0] <= base &&
+ base <= info->start[0] + info->size - 1)
+ break;
}
- /* Protect binary boot image */
- flash_protect (FLAG_PROTECT_SET,
- CFG_FLASH_BASE,
- CFG_FLASH_BASE + CFG_BOOT_SIZE - 1, &flash_info[0]);
-
- /* Protect environment variables */
- flash_protect (FLAG_PROTECT_SET,
- CFG_ENV_ADDR,
- CFG_ENV_ADDR + CFG_ENV_SIZE - 1, &flash_info[0]);
-
- /* Protect U-Boot gzipped image */
- flash_protect (FLAG_PROTECT_SET,
- CFG_U_BOOT_BASE,
- CFG_U_BOOT_BASE + CFG_U_BOOT_SIZE - 1, &flash_info[0]);
-
- return size;
+ return i == CFG_MAX_FLASH_BANKS ? 0 : info;
}
/*-----------------------------------------------------------------------
*/
-void flash_print_info (flash_info_t * info)
+
+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 (ATM_MANUFACT & FLASH_VENDMASK):
- printf ("Atmel: ");
- break;
- default:
- printf ("Unknown Vendor ");
- break;
+ case FLASH_MAN_AMD: printf ("AMD "); break;
+ case FLASH_MAN_BM: printf ("BRIGHT MICRO "); break;
+ case FLASH_MAN_FUJ: printf ("FUJITSU "); break;
+ case FLASH_MAN_SST: printf ("SST "); break;
+ case FLASH_MAN_STM: printf ("STM "); break;
+ case FLASH_MAN_INTEL: printf ("INTEL "); break;
+ default: printf ("Unknown Vendor "); break;
}
switch (info->flash_id & FLASH_TYPEMASK) {
- case (ATM_ID_BV1614 & FLASH_TYPEMASK):
- printf ("AT49BV1614 (16Mbit)\n");
- break;
- case (ATM_ID_BV1614A & FLASH_TYPEMASK):
- printf ("AT49BV1614A (16Mbit)\n");
- break;
- case (ATM_ID_BV6416 & FLASH_TYPEMASK):
- printf ("AT49BV6416 (64Mbit)\n");
+ case FLASH_S29GL064M:
+ printf ("S29GL064M-R6 (64Mbit, uniform sector size)\n");
break;
default:
printf ("Unknown Chip Type\n");
- goto Done;
break;
}
printf (" Size: %ld MB in %d Sectors\n",
- info->size >> 20, info->sector_count);
+ info->size >> 20,
+ info->sector_count);
printf (" Sector Start Addresses:");
- for (i = 0; i < info->sector_count; i++) {
+
+ for (i=0; i<info->sector_count; ++i) {
if ((i % 5) == 0) {
printf ("\n ");
}
- printf (" %08lX%s", info->start[i],
+ printf (" %08lX%s",
+ info->start[i],
info->protect[i] ? " (RO)" : " ");
}
printf ("\n");
-
-Done: ;
+ return;
}
/*-----------------------------------------------------------------------
*/
-int flash_erase (flash_info_t * info, int s_first, int s_last)
-{
- ulong result;
- int iflag, cflag, prot, sect;
- int rc = ERR_OK;
- int chip1;
-
- /* first look for protection bits */
-
- if (info->flash_id == FLASH_UNKNOWN)
- return ERR_UNKNOWN_FLASH_TYPE;
-
- if ((s_first < 0) || (s_first > s_last)) {
- return ERR_INVAL;
- }
+/*
+ * The following code cannot be run from FLASH!
+ */
- if ((info->flash_id & FLASH_VENDMASK) !=
- (ATM_MANUFACT & FLASH_VENDMASK)) {
- return ERR_UNKNOWN_FLASH_VENDOR;
- }
+ulong flash_get_size (FPWV *addr, flash_info_t *info)
+{
+ int i;
+ ulong base = (ulong)addr;
- prot = 0;
- for (sect = s_first; sect <= s_last; ++sect) {
- if (info->protect[sect]) {
- prot++;
- }
- }
- if (prot)
- return ERR_PROTECTED;
+ /* Write auto select command: read Manufacturer ID */
+ /* Write auto select command sequence and test FLASH answer */
+ addr[FLASH_CYCLE1] = (FPW)0x00AA00AA; /* for AMD, Intel ignores this */
+ addr[FLASH_CYCLE2] = (FPW)0x00550055; /* for AMD, Intel ignores this */
+ addr[FLASH_CYCLE1] = (FPW)0x00900090; /* selects Intel or AMD */
- /*
- * 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.
+ /* The manufacturer codes are only 1 byte, so just use 1 byte.
+ * This works for any bus width and any FLASH device width.
*/
- cflag = icache_status ();
- icache_disable ();
- iflag = disable_interrupts ();
+ udelay(100);
+ switch (addr[0] & 0xff) {
- /* Start erase on unprotected sectors */
- for (sect = s_first; sect <= s_last && !ctrlc (); sect++) {
- printf ("Erasing sector %2d ... ", sect);
-
- /* arm simple, non interrupt dependent timer */
- reset_timer_masked ();
+ case (uchar)AMD_MANUFACT:
+ printf ("Manufacturer: AMD (Spansion)\n");
+ info->flash_id = FLASH_MAN_AMD;
+ break;
- if (info->protect[sect] == 0) { /* not protected */
- volatile u16 *addr = (volatile u16 *) (info->start[sect]);
+ case (uchar)INTEL_MANUFACT:
+ printf ("Manufacturer: Intel (not supported yet)\n");
+ info->flash_id = FLASH_MAN_INTEL;
+ break;
- MEM_FLASH_ADDR1 = CMD_UNLOCK1;
- MEM_FLASH_ADDR2 = CMD_UNLOCK2;
- MEM_FLASH_ADDR1 = CMD_ERASE_SETUP;
+ default:
+ info->flash_id = FLASH_UNKNOWN;
+ info->sector_count = 0;
+ info->size = 0;
+ break;
+ }
- MEM_FLASH_ADDR1 = CMD_UNLOCK1;
- MEM_FLASH_ADDR2 = CMD_UNLOCK2;
- *addr = CMD_ERASE_CONFIRM;
+ /* Check 16 bits or 32 bits of ID so work on 32 or 16 bit bus. */
+ if (info->flash_id != FLASH_UNKNOWN) switch ((FPW)addr[1]) {
+
+ case AMD_ID_MIRROR:
+ printf ("Mirror Bit flash: addr[14] = %08X addr[15] = %08X\n",
+ addr[14], addr[15]);
+
+ switch(addr[14] & 0xffff) {
+ case (AMD_ID_GL064M_2 & 0xffff):
+ if (addr[15] != (AMD_ID_GL064M_3 & 0xffff)) {
+ printf ("Chip: S29GLxxxM -> unknown\n");
+ info->flash_id = FLASH_UNKNOWN;
+ info->sector_count = 0;
+ info->size = 0;
+ } else {
+ printf ("Chip: S29GL064M-R6\n");
+ info->flash_id += FLASH_S29GL064M;
+ info->sector_count = 128;
+ info->size = 0x00800000;
+ for (i = 0; i < info->sector_count; i++) {
+ info->start[i] = base;
+ base += 0x10000;
+ }
+ }
+ break; /* => 16 MB */
+ default:
+ printf ("Chip: *** unknown ***\n");
+ info->flash_id = FLASH_UNKNOWN;
+ info->sector_count = 0;
+ info->size = 0;
+ break;
+ }
+ break;
- /* wait until flash is ready */
- chip1 = 0;
+ default:
+ info->flash_id = FLASH_UNKNOWN;
+ info->sector_count = 0;
+ info->size = 0;
+ }
- do {
- result = *addr;
+ /* Put FLASH back in read mode */
+ flash_reset(info);
- /* check timeout */
- if (get_timer_masked () > CFG_FLASH_ERASE_TOUT) {
- MEM_FLASH_ADDR1 = CMD_READ_ARRAY;
- chip1 = TMO;
- break;
- }
+ return (info->size);
+}
- if (!chip1 && (result & 0xFFFF) & BIT_ERASE_DONE)
- chip1 = READY;
+/*-----------------------------------------------------------------------
+ */
- } while (!chip1);
+int flash_erase (flash_info_t *info, int s_first, int s_last)
+{
+ FPWV *addr = (FPWV *)(info->start[0]);
+ int flag, prot, sect, l_sect;
+ ulong start, now, last;
- MEM_FLASH_ADDR1 = CMD_READ_ARRAY;
+ printf ("flash_erase: first: %d last: %d\n", s_first, s_last);
- if (chip1 == ERR) {
- rc = ERR_PROG_ERROR;
- goto outahere;
+ if ((s_first < 0) || (s_first > s_last)) {
+ if (info->flash_id == FLASH_UNKNOWN) {
+ printf ("- missing\n");
+ } else {
+ printf ("- no sectors to erase\n");
}
- if (chip1 == TMO) {
- rc = ERR_TIMOUT;
- goto outahere;
+ return 1;
}
- printf ("ok.\n");
- } else { /* it was protected */
- printf ("protected!\n");
- }
+ if ((info->flash_id == FLASH_UNKNOWN) ||
+ (info->flash_id > FLASH_AMD_COMP)) {
+ printf ("Can't erase unknown flash type %08lx - aborted\n",
+ info->flash_id);
+ return 1;
}
- if (ctrlc ())
- printf ("User Interrupt!\n");
-
-outahere:
- /* allow flash to settle - wait 10 ms */
- udelay_masked (10000);
+ prot = 0;
+ for (sect=s_first; sect<=s_last; ++sect) {
+ if (info->protect[sect]) {
+ prot++;
+ }
+ }
- if (iflag)
- enable_interrupts ();
+ if (prot) {
+ printf ("- Warning: %d protected sectors will not be erased!\n",
+ prot);
+ } else {
+ printf ("\n");
+ }
- if (cflag)
- icache_enable ();
+ l_sect = -1;
- return rc;
-}
+ /* Disable interrupts which might cause a timeout here */
+ flag = disable_interrupts();
-/*-----------------------------------------------------------------------
- * Copy memory to flash
- */
+ addr[0x0555] = 0x00AA;
+ addr[0x02AA] = 0x0055;
+ addr[0x0555] = 0x0080;
+ addr[0x0555] = 0x00AA;
+ addr[0x02AA] = 0x0055;
-volatile static int write_word (flash_info_t * info, ulong dest,
- ulong data)
-{
- volatile u16 *addr = (volatile u16 *) dest;
- ulong result;
- int rc = ERR_OK;
- int cflag, iflag;
- int chip1;
+ /* Start erase on unprotected sectors */
+ for (sect = s_first; sect<=s_last; sect++) {
+ if (info->protect[sect] == 0) { /* not protected */
+ addr = (FPWV *)(info->start[sect]);
+ addr[0] = 0x0030;
+ l_sect = sect;
+ }
+ }
- /*
- * Check if Flash is (sufficiently) erased
- */
- result = *addr;
- if ((result & data) != data)
- return ERR_NOT_ERASED;
+ /* re-enable interrupts if necessary */
+ if (flag)
+ enable_interrupts();
+ /* wait at least 80us - let's wait 1 ms */
+ udelay (1000);
/*
- * 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.
+ * We wait for the last triggered sector
*/
- cflag = icache_status ();
- icache_disable ();
- iflag = disable_interrupts ();
-
- MEM_FLASH_ADDR1 = CMD_UNLOCK1;
- MEM_FLASH_ADDR2 = CMD_UNLOCK2;
- MEM_FLASH_ADDR1 = CMD_PROGRAM;
- *addr = data;
-
- /* arm simple, non interrupt dependent timer */
- reset_timer_masked ();
-
- /* wait until flash is ready */
- chip1 = 0;
- do {
- result = *addr;
-
- /* check timeout */
- if (get_timer_masked () > CFG_FLASH_ERASE_TOUT) {
- chip1 = ERR | TMO;
- break;
+ if (l_sect < 0)
+ goto DONE;
+
+ start = get_timer (0);
+ last = start;
+ addr = (FPWV *)(info->start[l_sect]);
+ while ((addr[0] & 0x00000080) != 0x00000080) {
+ if ((now = get_timer(start)) > CFG_FLASH_ERASE_TOUT) {
+ printf ("Timeout\n");
+ return 1;
+ }
+ /* show that we're waiting */
+ if ((now - last) > 1000) { /* every second */
+ putc ('.');
+ last = now;
+ }
}
- if (!chip1 && ((result & 0x80) == (data & 0x80)))
- chip1 = READY;
-
- } while (!chip1);
-
- *addr = CMD_READ_ARRAY;
-
- if (chip1 == ERR || *addr != data)
- rc = ERR_PROG_ERROR;
-
- if (iflag)
- enable_interrupts ();
- if (cflag)
- icache_enable ();
+DONE:
+ /* reset to read mode */
+ addr = (FPWV *)info->start[0];
+ addr[0] = 0x000000F0; /* reset bank */
- return rc;
+ printf (" done\n");
+ return 0;
}
/*-----------------------------------------------------------------------
- * Copy memory to flash.
+ * 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)
+int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
{
ulong wp, data;
int rc;
@@ -483,8 +379,8 @@ int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
wp = addr;
while (cnt >= 2) {
- data = *((volatile u16 *) src);
- if ((rc = write_word (info, wp, data)) != 0) {
+ data = *((FPWV *)src);
+ if ((rc = write_word_amd(info, (FPW *)wp, data)) != 0) {
return (rc);
}
src += 2;
@@ -492,16 +388,68 @@ int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
cnt -= 2;
}
+ if (cnt == 0) {
+ return (0);
+ }
+
if (cnt == 1) {
- data = (*((volatile u8 *) src)) | (*((volatile u8 *) (wp + 1)) <<
- 8);
- if ((rc = write_word (info, wp, data)) != 0) {
+ data = (*((volatile u8 *) src)) | (*((volatile u8 *) (wp + 1))
+ << 8);
+ if ((rc = write_word_amd(info, (FPW *)wp, data)) != 0) {
return (rc);
}
src += 1;
wp += 1;
cnt -= 1;
- };
+ }
return ERR_OK;
}
+
+/*-----------------------------------------------------------------------
+ * Write a word to Flash for AMD FLASH
+ * A word is 16 or 32 bits, whichever the bus width of the flash bank
+ * (not an individual chip) is.
+ *
+ * returns:
+ * 0 - OK
+ * 1 - write timeout
+ * 2 - Flash not erased
+ */
+static int write_word_amd (flash_info_t *info, FPWV *dest, FPW data)
+{
+ ulong start;
+ int flag;
+ FPWV *base; /* first address in flash bank */
+
+ /* Check if Flash is (sufficiently) erased */
+ if ((*dest & data) != data) {
+ return (2);
+ }
+
+ base = (FPWV *)(info->start[0]);
+
+ /* Disable interrupts which might cause a timeout here */
+ flag = disable_interrupts();
+
+ base[FLASH_CYCLE1] = (FPW)0x00AA00AA; /* unlock */
+ base[FLASH_CYCLE2] = (FPW)0x00550055; /* unlock */
+ base[FLASH_CYCLE1] = (FPW)0x00A000A0; /* selects program mode */
+
+ *dest = data; /* start programming the data */
+
+ /* re-enable interrupts if necessary */
+ if (flag)
+ enable_interrupts();
+
+ start = get_timer (0);
+
+ /* data polling for D7 */
+ while ((*dest & (FPW)0x00000080) != (data & (FPW)0x00000080)) {
+ if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
+ *dest = (FPW)0x000000F0; /* reset bank */
+ return (1);
+ }
+ }
+ return (0);
+}
diff --git a/board/cmc_pu2/memsetup.S b/board/cmc_pu2/memsetup.S
index 2d0e1d7..b0c8d4c 100644
--- a/board/cmc_pu2/memsetup.S
+++ b/board/cmc_pu2/memsetup.S
@@ -6,7 +6,7 @@
*
* Modified for the at91rm9200dk board by
* (C) Copyright 2004
- * Gary Jennejohn, DENX Software Engineering, <gj@denx.de>
+ * Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
*
* See file CREDITS for list of people who contributed to this
* project.
@@ -35,7 +35,7 @@
* some parameters for the board
*
* This is based on rm9200dk.cfg for the BDI2000 from ABATRON which in
- * turn is based on the boot.bin code from ATMMEL
+ * turn is based on the boot.bin code from ATMEL
*
*/
@@ -53,7 +53,7 @@
#define EBI_CFGR 0xFFFFFF64
#define EBI_CFGR_VAL 0x00000000
#define SMC2_CSR 0xFFFFFF70
-#define SMC2_CSR_VAL 0x00003284 /* 16bit, 2 TDF, 4 WS */
+#define SMC2_CSR_VAL 0x100032ad /* 16bit, 2 TDF, 4 WS */
/* clocks */
#define PLLAR 0xFFFFFC28
@@ -73,7 +73,7 @@
#define EBI_CSA 0xFFFFFF60
#define EBI_CSA_VAL 0x00000002 /* CS1=SDRAM */
#define SDRC_CR 0xFFFFFF98
-#define SDRC_CR_VAL 0x2188c155
+#define SDRC_CR_VAL 0x3399c1d4 /* set up the SDRAM */
#define SDRAM 0x20000000 /* address of the SDRAM */
#define SDRAM1 0x20000080 /* address of the SDRAM */
#define SDRAM_VAL 0x00000000 /* value written to SDRAM */
@@ -86,15 +86,20 @@
#define SDRC_TR_VAL 0x000002E0 /* Write refresh rate */
-_TEXT_BASE:
+_MTEXT_BASE:
+#undef START_FROM_MEM
+#ifdef START_FROM_MEM
+ .word TEXT_BASE-PHYS_FLASH_1
+#else
.word TEXT_BASE
+#endif
-.globl memsetup
-memsetup:
+.globl lowlevelinit
+lowlevelinit:
/* memory control configuration */
/* this isn't very elegant, but what the heck */
ldr r0, =SMRDATA
- ldr r1, _TEXT_BASE
+ ldr r1, _MTEXT_BASE
sub r0, r0, r1
add r2, r0, #80
0:
@@ -106,12 +111,12 @@ memsetup:
cmp r2, r0
bne 0b
/* delay - this is all done by guess */
- ldr r0, =0x00001000
+ ldr r0, =0x00010000
1:
subs r0, r0, #1
bhi 1b
ldr r0, =SMRDATA1
- ldr r1, _TEXT_BASE
+ ldr r1, _MTEXT_BASE
sub r0, r0, r1
add r2, r0, #176
2:
generated by cgit v1.1 at 2024-11-16 19:49:24 +0000