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-rw-r--r--board/delta/Makefile2
-rw-r--r--board/delta/config.mk3
-rw-r--r--board/delta/delta.c2
-rw-r--r--board/delta/flash.c434
-rw-r--r--board/delta/nand.c306
5 files changed, 311 insertions, 436 deletions
diff --git a/board/delta/Makefile b/board/delta/Makefile
index d968efb..e744eec 100644
--- a/board/delta/Makefile
+++ b/board/delta/Makefile
@@ -26,7 +26,7 @@ include $(TOPDIR)/config.mk
LIB = lib$(BOARD).a
-OBJS := delta.o flash.o
+OBJS := delta.o nand.o
SOBJS := lowlevel_init.o
$(LIB): $(OBJS) $(SOBJS)
diff --git a/board/delta/config.mk b/board/delta/config.mk
index d48fe05..b269b6e 100644
--- a/board/delta/config.mk
+++ b/board/delta/config.mk
@@ -4,3 +4,6 @@
#TEXT_BASE = 0x9ffe0000
TEXT_BASE = 0xa3008000
+# Compile the new NAND code (needed iff #ifdef CONFIG_NEW_NAND_CODE)
+BOARDLIBS = drivers/nand/libnand.a
+
diff --git a/board/delta/delta.c b/board/delta/delta.c
index e618ab9..3ffcc2a 100644
--- a/board/delta/delta.c
+++ b/board/delta/delta.c
@@ -41,7 +41,7 @@ int board_init (void)
/* memory and cpu-speed are setup before relocation */
/* so we do _nothing_ here */
- /* arch number of Lubbock-Board */
+ /* arch number of Lubbock-Board mk@tbd: fix this! */
gd->bd->bi_arch_number = MACH_TYPE_LUBBOCK;
/* adress of boot parameters */
diff --git a/board/delta/flash.c b/board/delta/flash.c
deleted file mode 100644
index 883c1ba..0000000
--- a/board/delta/flash.c
+++ /dev/null
@@ -1,434 +0,0 @@
-/*
- * (C) Copyright 2001
- * Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net
- *
- * (C) Copyright 2001
- * Wolfgang Denk, DENX Software Engineering, wd@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 <linux/byteorder/swab.h>
-
-
-flash_info_t flash_info[CFG_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")
-
-/*-----------------------------------------------------------------------
- * Functions
- */
-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);
-
-/*-----------------------------------------------------------------------
- */
-
-unsigned long flash_init (void)
-{
-#if 0
- int i;
- ulong size = 0;
-
- for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) {
- switch (i) {
- case 0:
- flash_get_size ((FPW *) PHYS_FLASH_1, &flash_info[i]);
- flash_get_offsets (PHYS_FLASH_1, &flash_info[i]);
- break;
- case 1:
- flash_get_size ((FPW *) PHYS_FLASH_2, &flash_info[i]);
- flash_get_offsets (PHYS_FLASH_2, &flash_info[i]);
- 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,
- CFG_FLASH_BASE,
- CFG_FLASH_BASE + monitor_flash_len - 1,
- &flash_info[0] );
-
- flash_protect ( FLAG_PROTECT_SET,
- CFG_ENV_ADDR,
- CFG_ENV_ADDR + CFG_ENV_SIZE - 1, &flash_info[0] );
-
- return size;
-#endif
- return 0;
-}
-
-/*-----------------------------------------------------------------------
- */
-static void flash_get_offsets (ulong base, flash_info_t *info)
-{
- int i;
-
- if (info->flash_id == FLASH_UNKNOWN) {
- return;
- }
-
- if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL) {
- for (i = 0; i < info->sector_count; i++) {
- 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_28F128J3A:
- printf ("28F128J3A\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_28F128J3A:
- info->flash_id += FLASH_28F128J3A;
- info->sector_count = 128;
- info->size = 0x02000000;
- break; /* => 16 MB */
-
- default:
- info->flash_id = FLASH_UNKNOWN;
- break;
- }
-
- if (info->sector_count > CFG_MAX_FLASH_SECT) {
- printf ("** ERROR: sector count %d > max (%d) **\n",
- info->sector_count, CFG_MAX_FLASH_SECT);
- info->sector_count = CFG_MAX_FLASH_SECT;
- }
-
- addr[0] = (FPW) 0x00FF00FF; /* restore read mode */
-
- return (info->size);
-}
-
-
-/*-----------------------------------------------------------------------
- */
-
-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");
- }
-
- 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);
-
- /* 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 () > CFG_FLASH_ERASE_TOUT) {
- printf ("Timeout\n");
- *addr = (FPW) 0x00B000B0; /* suspend erase */
- *addr = (FPW) 0x00FF00FF; /* reset to read mode */
- rcode = 1;
- break;
- }
- }
-
- *addr = 0x00500050; /* clear status register cmd. */
- *addr = 0x00FF00FF; /* resest to read mode */
-
- printf (" done\n");
- }
- }
- 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
-
- /*
- * 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) {
- 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) {
- return (rc);
- }
- wp += port_width;
- cnt -= port_width;
- if (count++ > 0x800) {
- spin_wheel ();
- count = 0;
- }
- }
-
- if (cnt == 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);
- }
-
- return (write_data (info, wp, SWAP (data)));
-}
-
-/*-----------------------------------------------------------------------
- * 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, *addr);
- return (2);
- }
- /* 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 () > CFG_FLASH_WRITE_TOUT) {
- *addr = (FPW) 0x00FF00FF; /* restore read mode */
- return (1);
- }
- }
-
- *addr = (FPW) 0x00FF00FF; /* restore read mode */
-
- 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/board/delta/nand.c b/board/delta/nand.c
new file mode 100644
index 0000000..9caddba
--- /dev/null
+++ b/board/delta/nand.c
@@ -0,0 +1,306 @@
+/*
+ * (C) Copyright 2006 DENX Software Engineering
+ *
+ * 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>
+
+#if (CONFIG_COMMANDS & CFG_CMD_NAND)
+#ifdef CONFIG_NEW_NAND_CODE
+
+#include <nand.h>
+#include <asm/arch/pxa-regs.h>
+
+/*
+ * hardware specific access to control-lines
+ * function borrowed from Linux 2.6 (drivers/mtd/nand/ppchameleonevb.c)
+ */
+static void delta_hwcontrol(struct mtd_info *mtdinfo, int cmd)
+{
+#if 0
+ struct nand_chip *this = mtdinfo->priv;
+ ulong base = (ulong) this->IO_ADDR_W;
+
+ switch(cmd) {
+ case NAND_CTL_SETCLE:
+ MACRO_NAND_CTL_SETCLE((unsigned long)base);
+ break;
+ case NAND_CTL_CLRCLE:
+ MACRO_NAND_CTL_CLRCLE((unsigned long)base);
+ break;
+ case NAND_CTL_SETALE:
+ MACRO_NAND_CTL_SETALE((unsigned long)base);
+ break;
+ case NAND_CTL_CLRALE:
+ MACRO_NAND_CTL_CLRALE((unsigned long)base);
+ break;
+ case NAND_CTL_SETNCE:
+ MACRO_NAND_ENABLE_CE((unsigned long)base);
+ break;
+ case NAND_CTL_CLRNCE:
+ MACRO_NAND_DISABLE_CE((unsigned long)base);
+ break;
+ }
+#endif
+}
+
+
+/* read device ready pin */
+static int delta_device_ready(struct mtd_info *mtdinfo)
+{
+ if(NDSR & NDSR_RDY)
+ return 1;
+ else
+ return 0;
+#if 0
+ struct nand_chip *this = mtdinfo->priv;
+ ulong rb_gpio_pin;
+
+ /* use the base addr to find out which chip are we dealing with */
+ switch((ulong) this->IO_ADDR_W) {
+ case CFG_NAND0_BASE:
+ rb_gpio_pin = CFG_NAND0_RDY;
+ break;
+ case CFG_NAND1_BASE:
+ rb_gpio_pin = CFG_NAND1_RDY;
+ break;
+ default: /* this should never happen */
+ return 0;
+ break;
+ }
+
+ if (in32(GPIO0_IR) & rb_gpio_pin)
+ return 1;
+#endif
+ return 0;
+}
+
+static u_char delta_read_byte(struct mtd_info *mtd)
+{
+/* struct nand_chip *this = mtd->priv; */
+ unsigned long tmp;
+
+ /* wait for read request */
+ while(1) {
+ if(NDSR & NDSR_RDDREQ) {
+ NDSR |= NDSR_RDDREQ;
+ break;
+ }
+ }
+
+ tmp = NDDB;
+ printk("delta_read_byte: 0x%x.\n", tmp);
+ return (u_char) tmp;
+}
+
+/* this is really monahans, not board specific ... */
+static void delta_cmdfunc(struct mtd_info *mtd, unsigned command,
+ int column, int page_addr)
+{
+ /* register struct nand_chip *this = mtd->priv; */
+ unsigned long ndcb0=0, ndcb1=0, ndcb2=0;
+ uchar command2;
+
+ /* Clear NDSR */
+ NDSR = 0xFFF;
+
+ /* apparently NDCR[NDRUN] needs to be set before writing to NDCBx */
+ NDCR |= NDCR_ND_RUN;
+
+ /* wait for write command request
+ * hmm, might be nice if this could time-out. mk@tbd
+ */
+ while(1) {
+ if(NDSR & NDSR_WRCMDREQ) {
+ NDSR |= NDSR_WRCMDREQ; /* Ack */
+ break;
+ }
+ }
+
+ /* if command is a double byte cmd, we set bit double cmd bit 19 */
+ command2 = (command>>8) & 0xFF;
+ ndcb0 = command | ((command2 ? 1 : 0) << 19);
+
+ switch (command) {
+ case NAND_CMD_READID:
+ printk("delta_cmdfunc: NAND_CMD_READID.\n");
+ ndcb0 |= ((3 << 21) | (2 << 16));
+ break;
+ case NAND_CMD_PAGEPROG:
+ case NAND_CMD_ERASE1:
+ case NAND_CMD_ERASE2:
+ case NAND_CMD_SEQIN:
+ case NAND_CMD_STATUS:
+ return;
+ case NAND_CMD_RESET:
+ return;
+ default:
+ printk("delta_cmdfunc: error, unkown command issued.\n");
+ return;
+ }
+
+ NDCB0 = ndcb0;
+ NDCB1 = ndcb1;
+ NDCB2 = ndcb2;
+}
+
+/*
+ * Board-specific NAND initialization. The following members of the
+ * argument are board-specific (per include/linux/mtd/nand_new.h):
+ * - IO_ADDR_R?: address to read the 8 I/O lines of the flash device
+ * - IO_ADDR_W?: address to write the 8 I/O lines of the flash device
+ * - hwcontrol: hardwarespecific function for accesing control-lines
+ * - dev_ready: hardwarespecific function for accesing device ready/busy line
+ * - enable_hwecc?: function to enable (reset) hardware ecc generator. Must
+ * only be provided if a hardware ECC is available
+ * - eccmode: mode of ecc, see defines
+ * - chip_delay: chip dependent delay for transfering data from array to
+ * read regs (tR)
+ * - options: various chip options. They can partly be set to inform
+ * nand_scan about special functionality. See the defines for further
+ * explanation
+ * Members with a "?" were not set in the merged testing-NAND branch,
+ * so they are not set here either.
+ */
+void board_nand_init(struct nand_chip *nand)
+{
+ unsigned long tCH, tCS, tWH, tWP, tRH, tRP, tRP_high, tR, tWHR, tAR;
+
+ /* set up GPIO Control Registers */
+
+ /* turn on the NAND Controller Clock (104 MHz @ D0) */
+ CKENA |= (CKENA_4_NAND | CKENA_9_SMC);
+
+ /* NAND Timing Parameters (in ns) */
+#define NAND_TIMING_tCH 10
+#define NAND_TIMING_tCS 0
+#define NAND_TIMING_tWH 20
+#define NAND_TIMING_tWP 40
+#define NAND_TIMING_tRH 20
+#define NAND_TIMING_tRP 40
+#define NAND_TIMING_tR 11123
+#define NAND_TIMING_tWHR 110
+#define NAND_TIMING_tAR 10
+
+/* Maximum values for NAND Interface Timing Registers in DFC clock
+ * periods */
+#define DFC_MAX_tCH 7
+#define DFC_MAX_tCS 7
+#define DFC_MAX_tWH 7
+#define DFC_MAX_tWP 7
+#define DFC_MAX_tRH 7
+#define DFC_MAX_tRP 15
+#define DFC_MAX_tR 65535
+#define DFC_MAX_tWHR 15
+#define DFC_MAX_tAR 15
+
+#define DFC_CLOCK 104 /* DFC Clock is 104 MHz */
+#define DFC_CLK_PER_US DFC_CLOCK/1000 /* clock period in ns */
+#define MIN(x, y) ((x < y) ? x : y)
+
+
+ tCH = MIN(((unsigned long) (NAND_TIMING_tCH * DFC_CLK_PER_US) + 1),
+ DFC_MAX_tCH);
+ tCS = MIN(((unsigned long) (NAND_TIMING_tCS * DFC_CLK_PER_US) + 1),
+ DFC_MAX_tCS);
+ tWH = MIN(((unsigned long) (NAND_TIMING_tWH * DFC_CLK_PER_US) + 1),
+ DFC_MAX_tWH);
+ tWP = MIN(((unsigned long) (NAND_TIMING_tWP * DFC_CLK_PER_US) + 1),
+ DFC_MAX_tWP);
+ tRH = MIN(((unsigned long) (NAND_TIMING_tRH * DFC_CLK_PER_US) + 1),
+ DFC_MAX_tRH);
+ tRP = MIN(((unsigned long) (NAND_TIMING_tRP * DFC_CLK_PER_US) + 1),
+ DFC_MAX_tRP);
+ tR = MIN(((unsigned long) (NAND_TIMING_tR * DFC_CLK_PER_US) + 1),
+ DFC_MAX_tR);
+ tWHR = MIN(((unsigned long) (NAND_TIMING_tWHR * DFC_CLK_PER_US) + 1),
+ DFC_MAX_tWHR);
+ tAR = MIN(((unsigned long) (NAND_TIMING_tAR * DFC_CLK_PER_US) + 1),
+ DFC_MAX_tAR);
+
+
+ /* tRP value is split in the register */
+ if(tRP & (1 << 4)) {
+ tRP_high = 1;
+ tRP &= ~(1 << 4);
+ } else {
+ tRP_high = 0;
+ }
+
+ NDTR0CS0 = (tCH << 19) |
+ (tCS << 16) |
+ (tWH << 11) |
+ (tWP << 8) |
+ (tRP_high << 6) |
+ (tRH << 3) |
+ (tRP << 0);
+
+ NDTR1CS0 = (tR << 16) |
+ (tWHR << 4) |
+ (tAR << 0);
+
+
+
+ /* If it doesn't work (unlikely) think about:
+ * - ecc enable
+ * - chip select don't care
+ * - read id byte count
+ *
+ * Intentionally enabled by not setting bits:
+ * - dma (DMA_EN)
+ * - page size = 512
+ * - cs don't care, see if we can enable later!
+ * - row address start position (after second cycle)
+ * - pages per block = 32
+ */
+ NDCR = (NDCR_ND_ARB_EN | /* enable bus arbiter */
+ NDCR_SPARE_EN | /* use the spare area */
+ NDCR_DWIDTH_C | /* 16bit DFC data bus width */
+ NDCR_DWIDTH_M | /* 16 bit Flash device data bus width */
+ (2 << 16) | /* read id count = 7 ???? mk@tbd */
+ NDCE_RDYM | /* flash device ready ir masked */
+ NDCE_CS0_PAGEDM | /* ND_nCSx page done ir masked */
+ NDCE_CS1_PAGEDM |
+ NDCE_CS0_CMDDM | /* ND_CSx command done ir masked */
+ NDCE_CS1_CMDDM |
+ NDCE_CS0_BBDM | /* ND_CSx bad block detect ir masked */
+ NDCE_CS1_BBDM |
+ NDCE_DBERRM | /* double bit error ir masked */
+ NDCE_SBERRM | /* single bit error ir masked */
+ NDCE_WRDREQM | /* write data request ir masked */
+ NDCE_RDDREQM | /* read data request ir masked */
+ NDCE_WRCMDREQM); /* write command request ir masked */
+
+
+
+ nand->hwcontrol = delta_hwcontrol;
+ nand->dev_ready = delta_device_ready;
+ nand->eccmode = NAND_ECC_SOFT;
+ nand->chip_delay = NAND_DELAY_US;
+ nand->options = NAND_BUSWIDTH_16;
+ nand->read_byte = delta_read_byte;
+ nand->cmdfunc = delta_cmdfunc;
+ /* nand->options = NAND_SAMSUNG_LP_OPTIONS; */
+}
+
+#else
+#error "U-Boot legacy NAND support not available for delta board."
+#endif
+#endif
generated by cgit v1.1 at 2024-11-27 09:54:17 +0000