[U-Boot-Users] [PATCH] TQM85xx: NAND support via local bus UPMB

Wolfgang Grandegger
2008-05-28T18:12:28Z

This patch adds support for NAND FLASH on the TQM8548. It is disabled by
default and can be enabled for the TQM8548 modules. Note that the R/B pin
is not supported by that module requiring to use the specified maximum
delay time.

Note: With NAND support enabled the size of the U-Boot image exceeds
256 KB and TEXT_BASE must therefore be set to 0xfff80000 in config.mk,
doubling the image size :-(.

Signed-off-by: Thomas Waehner <thomas.waehner@tqs.de>
Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
---
board/tqc/tqm85xx/Makefile | 8 +-
board/tqc/tqm85xx/law.c | 6 +-
board/tqc/tqm85xx/nand.c | 597 ++++++++++++++++++++++++++++++++++++++++++++
board/tqc/tqm85xx/tlb.c | 2 +-
include/configs/TQM85xx.h | 80 ++++++-
include/mpc85xx.h | 4 +
6 files changed, 689 insertions(+), 8 deletions(-)
create mode 100644 board/tqc/tqm85xx/nand.c

diff --git a/board/tqc/tqm85xx/Makefile b/board/tqc/tqm85xx/Makefile
index 52f5ef9..8ea07f2 100644
--- a/board/tqc/tqm85xx/Makefile
+++ b/board/tqc/tqm85xx/Makefile
@@ -25,8 +25,14 @@ include $(TOPDIR)/config.mk

LIB = $(obj)lib$(BOARD).a

-COBJS := $(BOARD).o sdram.o law.o tlb.o
+COBJS-y += $(BOARD).o
+COBJS-y += sdram.o
+COBJS-y += law.o
+COBJS-y += tlb.o

+COBJS-$(CONFIG_NAND) += nand.o
+
+COBJS := $(COBJS-y)
SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
OBJS := $(addprefix $(obj),$(COBJS))
SOBJS := $(addprefix $(obj),$(SOBJS))
diff --git a/board/tqc/tqm85xx/law.c b/board/tqc/tqm85xx/law.c
index bec1ed5..914ce68 100644
--- a/board/tqc/tqm85xx/law.c
+++ b/board/tqc/tqm85xx/law.c
@@ -35,7 +35,7 @@
* 0xc000_0000 0xdfff_ffff RapidIO or PCI express 512M
* 0xe000_0000 0xe000_ffff CCSR 1M
* 0xe200_0000 0xe2ff_ffff PCI1 IO 16M
- * 0xe300_0000 0xe3ff_ffff CAN 16M
+ * 0xe300_0000 0xe3ff_ffff CAN and NAND Flash 16M
* 0xef00_0000 0xefff_ffff PCI express IO 16M
* 0xfe00_0000 0xffff_ffff FLASH (boot bank) 32M
*
@@ -54,9 +54,9 @@ struct law_entry law_table[] = {
#else /* !CONFIG_PCIE1 */
SET_LAW_ENTRY (5, CFG_RIO_MEM_BASE, LAW_SIZE_512M, LAW_TRGT_IF_RIO),
#endif /* CONFIG_PCIE1 */
-#ifdef CONFIG_CAN_DRIVER
+#if defined(CONFIG_CAN_DRIVER) || defined(CONFIG_NAND)
SET_LAW_ENTRY (6, CFG_CAN_BASE, LAW_SIZE_16M, LAW_TRGT_IF_LBC),
-#endif /* CONFIG_CAN_DRIVER */
+#endif /* CONFIG_CAN_DRIVER || CONFIG_NAND */
#ifdef CONFIG_PCIE1
SET_LAW_ENTRY (7, CFG_PCIE1_IO_BASE, LAW_SIZE_16M, LAW_TRGT_IF_PCIE_1),
#endif /* CONFIG_PCIE */
diff --git a/board/tqc/tqm85xx/nand.c b/board/tqc/tqm85xx/nand.c
new file mode 100644
index 0000000..4ae8475
--- /dev/null
+++ b/board/tqc/tqm85xx/nand.c
@@ -0,0 +1,597 @@
+/*
+ * (C) Copyright 2008 Wolfgang Grandegger <wg@denx.de>
+ *
+ * (C) Copyright 2006
+ * Thomas Waehner, TQ-System GmbH, thomas.waehner at tqs.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/processor.h>
+#include <asm/immap_85xx.h>
+#include <asm/processor.h>
+#include <asm/mmu.h>
+#include <asm/io.h>
+#include <asm/errno.h>
+#include <ioports.h>
+
+#include <nand.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+extern uint get_lbc_clock (void);
+
+/* index of UPM RAM array run pattern for NAND command cycle */
+#define CFG_NAND_UPM_WRITE_CMD_OFS 0x08
+
+/* index of UPM RAM array run pattern for NAND address cycle */
+#define CFG_NAND_UPM_WRITE_ADDR_OFS 0x10
+
+/* Structure for table with supported UPM timings */
+struct upm_freq {
+ ulong freq;
+ const ulong *upm_patt;
+ uchar gpl4_disable;
+ uchar ehtr;
+ uchar ead;
+};
+
+/* NAND-FLASH UPM tables for TQM85XX according to TQM8548.pq.timing.101.doc */
+
+/* UPM pattern for bus clock = 25 MHz */
+static const ulong upm_patt_25[] = {
+ /* Offset *//* UPM Read Single RAM array entry -> NAND Read Data */
+ /* 0x00 */ 0x0ff32000, 0x0fa32000, 0x3fb32005, 0xfffffc00,
+ /* 0x04 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+
+ /* UPM Read Burst RAM array entry -> NAND Write CMD */
+ /* 0x08 */ 0x00ff2c30, 0x00ff2c30, 0x0fff2c35, 0xfffffc00,
+ /* 0x0C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+
+ /* UPM Read Burst RAM array entry -> NAND Write ADDR */
+ /* 0x10 */ 0x00f3ec30, 0x00f3ec30, 0x0ff3ec35, 0xfffffc00,
+ /* 0x14 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+
+ /* UPM Write Single RAM array entry -> NAND Write Data */
+ /* 0x18 */ 0x00f32c00, 0x00f32c00, 0x0ff32c05, 0xfffffc00,
+ /* 0x1C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+
+ /* UPM Write Burst RAM array entry -> unused */
+ /* 0x20 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x24 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x28 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x2C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
+
+ /* UPM Refresh Timer RAM array entry -> unused */
+ /* 0x30 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x34 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x38 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
+
+ /* UPM Exception RAM array entry -> unsused */
+ /* 0x3C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
+};
+
+/* UPM pattern for bus clock = 33.3 MHz */
+static const ulong upm_patt_33[] = {
+ /* Offset *//* UPM Read Single RAM array entry -> NAND Read Data */
+ /* 0x00 */ 0x0ff32000, 0x0fa32100, 0x3fb32005, 0xfffffc00,
+ /* 0x04 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+
+ /* UPM Read Burst RAM array entry -> NAND Write CMD */
+ /* 0x08 */ 0x00ff2c30, 0x00ff2c30, 0x0fff2c35, 0xfffffc00,
+ /* 0x0C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+
+ /* UPM Read Burst RAM array entry -> NAND Write ADDR */
+ /* 0x10 */ 0x00f3ec30, 0x00f3ec30, 0x0ff3ec35, 0xfffffc00,
+ /* 0x14 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+
+ /* UPM Write Single RAM array entry -> NAND Write Data */
+ /* 0x18 */ 0x00f32c00, 0x00f32c00, 0x0ff32c05, 0xfffffc00,
+ /* 0x1C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+
+ /* UPM Write Burst RAM array entry -> unused */
+ /* 0x20 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x24 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x28 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x2C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
+
+ /* UPM Refresh Timer RAM array entry -> unused */
+ /* 0x30 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x34 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x38 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
+
+ /* UPM Exception RAM array entry -> unsused */
+ /* 0x3C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
+};
+
+/* UPM pattern for bus clock = 41.7 MHz */
+static const ulong upm_patt_42[] = {
+ /* Offset *//* UPM Read Single RAM array entry -> NAND Read Data */
+ /* 0x00 */ 0x0ff32000, 0x0fa32100, 0x3fb32005, 0xfffffc00,
+ /* 0x04 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+
+ /* UPM Read Burst RAM array entry -> NAND Write CMD */
+ /* 0x08 */ 0x00ff2c30, 0x00ff2c30, 0x0fff2c35, 0xfffffc00,
+ /* 0x0C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+
+ /* UPM Read Burst RAM array entry -> NAND Write ADDR */
+ /* 0x10 */ 0x00f3ec30, 0x00f3ec30, 0x0ff3ec35, 0xfffffc00,
+ /* 0x14 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+
+ /* UPM Write Single RAM array entry -> NAND Write Data */
+ /* 0x18 */ 0x00f32c00, 0x00f32c00, 0x0ff32c05, 0xfffffc00,
+ /* 0x1C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+
+ /* UPM Write Burst RAM array entry -> unused */
+ /* 0x20 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x24 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x28 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x2C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
+
+ /* UPM Refresh Timer RAM array entry -> unused */
+ /* 0x30 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x34 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x38 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
+
+ /* UPM Exception RAM array entry -> unsused */
+ /* 0x3C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
+};
+
+/* UPM pattern for bus clock = 50 MHz */
+static const ulong upm_patt_50[] = {
+ /* Offset *//* UPM Read Single RAM array entry -> NAND Read Data */
+ /* 0x00 */ 0x0ff33000, 0x0fa33100, 0x0fa33005, 0xfffffc00,
+ /* 0x04 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+
+ /* UPM Read Burst RAM array entry -> NAND Write CMD */
+ /* 0x08 */ 0x00ff3d30, 0x00ff3c30, 0x0fff3c35, 0xfffffc00,
+ /* 0x0C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+
+ /* UPM Read Burst RAM array entry -> NAND Write ADDR */
+ /* 0x10 */ 0x00f3fd30, 0x00f3fc30, 0x0ff3fc35, 0xfffffc00,
+ /* 0x14 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+
+ /* UPM Write Single RAM array entry -> NAND Write Data */
+ /* 0x18 */ 0x00f33d00, 0x00f33c00, 0x0ff33c05, 0xfffffc00,
+ /* 0x1C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+
+ /* UPM Write Burst RAM array entry -> unused */
+ /* 0x20 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x24 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x28 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x2C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
+
+ /* UPM Refresh Timer RAM array entry -> unused */
+ /* 0x30 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x34 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x38 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
+
+ /* UPM Exception RAM array entry -> unsused */
+ /* 0x3C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
+};
+
+/* UPM pattern for bus clock = 66.7 MHz */
+static const ulong upm_patt_67[] = {
+ /* Offset *//* UPM Read Single RAM array entry -> NAND Read Data */
+ /* 0x00 */ 0x0ff33000, 0x0fe33000, 0x0fa33100, 0x0fa33000,
+ /* 0x04 */ 0x0fa33005, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+
+ /* UPM Read Burst RAM array entry -> NAND Write CMD */
+ /* 0x08 */ 0x00ff3d30, 0x00ff3c30, 0x0fff3c30, 0x0fff3c35,
+ /* 0x0C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+
+ /* UPM Read Burst RAM array entry -> NAND Write ADDR */
+ /* 0x10 */ 0x00f3fd30, 0x00f3fc30, 0x0ff3fc30, 0x0ff3fc35,
+ /* 0x14 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+
+ /* UPM Write Single RAM array entry -> NAND Write Data */
+ /* 0x18 */ 0x00f33d00, 0x00f33c00, 0x0ff33c00, 0x0ff33c05,
+ /* 0x1C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+
+ /* UPM Write Burst RAM array entry -> unused */
+ /* 0x20 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x24 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x28 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x2C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
+
+ /* UPM Refresh Timer RAM array entry -> unused */
+ /* 0x30 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x34 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x38 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
+
+ /* UPM Exception RAM array entry -> unsused */
+ /* 0x3C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
+};
+
+/* UPM pattern for bus clock = 83.3 MHz */
+static const ulong upm_patt_83[] = {
+ /* Offset *//* UPM Read Single RAM array entry -> NAND Read Data */
+ /* 0x00 */ 0x0ff33000, 0x0fe33000, 0x0fa33100, 0x0fa33000,
+ /* 0x04 */ 0x0fa33005, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+
+ /* UPM Read Burst RAM array entry -> NAND Write CMD */
+ /* 0x08 */ 0x00ff3e30, 0x00ff3c30, 0x0fff3c30, 0x0fff3c35,
+ /* 0x0C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+
+ /* UPM Read Burst RAM array entry -> NAND Write ADDR */
+ /* 0x10 */ 0x00f3fe30, 0x00f3fc30, 0x0ff3fc30, 0x0ff3fc35,
+ /* 0x14 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+
+ /* UPM Write Single RAM array entry -> NAND Write Data */
+ /* 0x18 */ 0x00f33e00, 0x00f33c00, 0x0ff33c00, 0x0ff33c05,
+ /* 0x1C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+
+ /* UPM Write Burst RAM array entry -> unused */
+ /* 0x20 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x24 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x28 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x2C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
+
+ /* UPM Refresh Timer RAM array entry -> unused */
+ /* 0x30 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x34 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x38 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
+
+ /* UPM Exception RAM array entry -> unsused */
+ /* 0x3C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
+};
+
+/* UPM pattern for bus clock = 100 MHz */
+static const ulong upm_patt_100[] = {
+ /* Offset *//* UPM Read Single RAM array entry -> NAND Read Data */
+ /* 0x00 */ 0x0ff33100, 0x0fe33000, 0x0fa33200, 0x0fa33000,
+ /* 0x04 */ 0x0fa33005, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+
+ /* UPM Read Burst RAM array entry -> NAND Write CMD */
+ /* 0x08 */ 0x00ff3f30, 0x00ff3c30, 0x0fff3c30, 0x0fff3c35,
+ /* 0x0C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+
+ /* UPM Read Burst RAM array entry -> NAND Write ADDR */
+ /* 0x10 */ 0x00f3ff30, 0x00f3fc30, 0x0ff3fc30, 0x0ff3fc35,
+ /* 0x14 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+
+ /* UPM Write Single RAM array entry -> NAND Write Data */
+ /* 0x18 */ 0x00f33f00, 0x00f33c00, 0x0ff33c00, 0x0ff33c05,
+ /* 0x1C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+
+ /* UPM Write Burst RAM array entry -> unused */
+ /* 0x20 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x24 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x28 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x2C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
+
+ /* UPM Refresh Timer RAM array entry -> unused */
+ /* 0x30 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x34 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x38 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
+
+ /* UPM Exception RAM array entry -> unsused */
+ /* 0x3C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
+};
+
+/* UPM pattern for bus clock = 133.3 MHz */
+static const ulong upm_patt_133[] = {
+ /* Offset *//* UPM Read Single RAM array entry -> NAND Read Data */
+ /* 0x00 */ 0x0ff33100, 0x0fe33000, 0x0fa33300, 0x0fa33000,
+ /* 0x04 */ 0x0fa33000, 0x0fa33005, 0xfffffc00, 0xfffffc00,
+
+ /* UPM Read Burst RAM array entry -> NAND Write CMD */
+ /* 0x08 */ 0x00ff3f30, 0x00ff3d30, 0x0fff3d30, 0x0fff3c35,
+ /* 0x0C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+
+ /* UPM Read Burst RAM array entry -> NAND Write ADDR */
+ /* 0x10 */ 0x00f3ff30, 0x00f3fd30, 0x0ff3fd30, 0x0ff3fc35,
+ /* 0x14 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+
+ /* UPM Write Single RAM array entry -> NAND Write Data */
+ /* 0x18 */ 0x00f33f00, 0x00f33d00, 0x0ff33d00, 0x0ff33c05,
+ /* 0x1C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+
+ /* UPM Write Burst RAM array entry -> unused */
+ /* 0x20 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x24 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x28 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x2C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
+
+ /* UPM Refresh Timer RAM array entry -> unused */
+ /* 0x30 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x34 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x38 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
+
+ /* UPM Exception RAM array entry -> unsused */
+ /* 0x3C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
+};
+
+/* UPM pattern for bus clock = 166.7 MHz */
+static const ulong upm_patt_167[] = {
+ /* Offset *//* UPM Read Single RAM array entry -> NAND Read Data */
+ /* 0x00 */ 0x0ff33200, 0x0fe33000, 0x0fa33300, 0x0fa33300,
+ /* 0x04 */ 0x0fa33005, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+
+ /* UPM Read Burst RAM array entry -> NAND Write CMD */
+ /* 0x08 */ 0x00ff3f30, 0x00ff3f30, 0x0fff3e30, 0xffff3c35,
+ /* 0x0C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+
+ /* UPM Read Burst RAM array entry -> NAND Write ADDR */
+ /* 0x10 */ 0x00f3ff30, 0x00f3ff30, 0x0ff3fe30, 0x0ff3fc35,
+ /* 0x14 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+
+ /* UPM Write Single RAM array entry -> NAND Write Data */
+ /* 0x18 */ 0x00f33f00, 0x00f33f00, 0x0ff33e00, 0x0ff33c05,
+ /* 0x1C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+
+ /* UPM Write Burst RAM array entry -> unused */
+ /* 0x20 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x24 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x28 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x2C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
+
+ /* UPM Refresh Timer RAM array entry -> unused */
+ /* 0x30 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x34 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ /* 0x38 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
+
+ /* UPM Exception RAM array entry -> unsused */
+ /* 0x3C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
+};
+
+/* Supported UPM timings */
+struct upm_freq upm_freq_table[] = {
+ /* nominal freq. | ptr to table | GPL4 dis. | EHTR | EAD */
+ {25000000, upm_patt_25, 1, 0, 0},
+ {33333333, upm_patt_33, 1, 0, 0},
+ {41666666, upm_patt_42, 1, 0, 0},
+ {50000000, upm_patt_50, 0, 0, 0},
+ {66666666, upm_patt_67, 0, 0, 0},
+ {83333333, upm_patt_83, 0, 0, 0},
+ {100000000, upm_patt_100, 0, 1, 1},
+ {133333333, upm_patt_133, 0, 1, 1},
+ {166666666, upm_patt_167, 0, 1, 1},
+};
+
+#define UPM_FREQS (sizeof(upm_freq_table) / sizeof(struct upm_freq))
+
+static int nand_upm_init_done;
+
+/* nand flash base address */
+static u8 hwctl;
+
+/*
+ * write into UPMB ram
+ */
+static void upmb_write (u_char addr, ulong val)
+{
+ volatile ccsr_lbc_t *lbc = (void *)(CFG_MPC85xx_LBC_ADDR);
+
+ out_be32 (&lbc->mdr, val);
+
+ out_be32 (&lbc->mbmr,
+ (in_be32 (&lbc->mbmr) & ~(MxMR_OP_NORM | MxMR_MAD)) |
+ MxMR_OP_WARR | (addr & MxMR_MAD));
+
+ /* dummy access to perform write */
+ out_8 ((void __iomem *)CFG_NAND0_BASE, 0);
+
+ out_be32 (&lbc->mbmr,
+ (in_be32 (&lbc->mbmr) & ~MxMR_OP_WARR) | MxMR_OP_NORM);
+}
+
+/*
+ * Initialize UPM for NAND flash access.
+ */
+void nand_upm_init (void)
+{
+ uint i;
+ uint or3 = CFG_OR3_PRELIM;
+ uint clock = get_lbc_clock ();
+ volatile ccsr_lbc_t *lbc = (void *)(CFG_MPC85xx_LBC_ADDR);
+ volatile const ulong *upm_patt = NULL;
+
+ lbc->br3 = 0; /* disable bank and reset all bits */
+
+ lbc->br3 = CFG_BR3_PRELIM;
+
+ /*
+ * Search appropriate UPM table for bus clock.
+ * If the bus clock exceeds a tolerated value, take the UPM timing for
+ * the next higher supported frequency to ensure that access works
+ * (even the access may be slower then).
+ */
+ for (i = 0; (i < UPM_FREQS) && (clock > upm_freq_table[i].freq); i++)
+ ;
+
+ if (i >= UPM_FREQS)
+ /* no valid entry found */
+ /* take last entry with configuration for max. bus clock */
+ i--;
+
+ if (upm_freq_table[i].ehtr) {
+ /* EHTR must be set due to TQM8548 timing specification */
+ or3 |= ORxU_EHTR;
+ }
+ if (upm_freq_table[i].ead)
+ /* EAD must be set due to TQM8548 timing specification */
+ or3 |= ORxU_EAD;
+
+ lbc->or3 = or3;
+
+ /* Assign address of table */
+ upm_patt = upm_freq_table[i].upm_patt;
+
+ for (i = 0; i < 64; i++) {
+ upmb_write (i, *upm_patt);
+ upm_patt++;
+ }
+
+ /* Put UPM back to normal operation mode */
+ if (upm_freq_table[i].gpl4_disable)
+ /* GPL4 must be disabled according to timing specification */
+ lbc->mbmr = MxMR_OP_NORM | MxMR_GPL4_DIS;
+
+ nand_upm_init_done = 1;
+
+ return;
+}
+
+/*
+ * nand_upm_exec - exectutes an UPM run pattern
+ */
+void nand_upm_exec (struct mtd_info *mtd, int offset, unsigned char byte)
+{
+ struct nand_chip *chip = mtd->priv;
+ volatile ccsr_lbc_t *lbc = (void *)(CFG_MPC85xx_LBC_ADDR);
+ int i;
+
+ /* Put UPM to run pattern mode for NAND command write */
+ out_be32 (&lbc->mbmr,
+ (in_be32 (&lbc->mbmr) & ~(MxMR_OP_MSK | MxMR_MAD)) |
+ MxMR_OP_RUN | offset);
+
+ /* Just output address on AD[0..7] (=MSB) */
+ out_be32 (&lbc->mar, byte << 24);
+
+ /* UPM dummy write */
+ out_8 (chip->IO_ADDR_W, 0x0);
+
+ /* give upm time to run pattern */
+ for (i = 0; i < 300; i++)
+ asm ("nop");
+
+ /* Put UPM back to normal operation mode */
+ out_be32 (&lbc->mbmr,
+ (in_be32 (&lbc->mbmr) & ~MxMR_OP_MSK) | MxMR_OP_NORM);
+}
+
+static void upmnand_hwcontrol (struct mtd_info *mtdinfo, int cmd)
+{
+ switch (cmd) {
+ case NAND_CTL_SETCLE:
+ hwctl |= 0x1;
+ break;
+ case NAND_CTL_CLRCLE:
+ hwctl &= ~0x1;
+ break;
+
+ case NAND_CTL_SETALE:
+ hwctl |= 0x2;
+ break;
+
+ case NAND_CTL_CLRALE:
+ hwctl &= ~0x2;
+ break;
+ }
+}
+
+static void upmnand_write_byte (struct mtd_info *mtdinfo, u_char byte)
+{
+ struct nand_chip *chip = mtdinfo->priv;
+
+ if (hwctl & 0x1)
+ nand_upm_exec (mtdinfo, CFG_NAND_UPM_WRITE_CMD_OFS, byte);
+ else if (hwctl & 0x2)
+ nand_upm_exec (mtdinfo, CFG_NAND_UPM_WRITE_ADDR_OFS, byte);
+ else
+ out_8 (chip->IO_ADDR_W, byte);
+}
+
+static u_char upmnand_read_byte (struct mtd_info *mtdinfo)
+{
+ struct nand_chip *chip = mtdinfo->priv;
+ u8 val = in_8 (chip->IO_ADDR_R);
+
+ return val;
+}
+
+#ifdef CONFIG_HAVE_NAND_RB
+static int tqm_dev_ready (struct mtd_info *mtdinfo)
+{
+ /** FIXME query GPIO PIN where NAND R/B is attached to */
+
+ /* constant delay (see also tR in the datasheet) */
+ udelay (NAND_BIG_DELAY_US);
+ return 1;
+}
+#endif /* CONFIG_HAVE_NAND_RB */
+
+#ifndef CONFIG_NAND_SPL
+static void tqm_read_buf (struct mtd_info *mtdinfo, uint8_t * buf, int len)
+{
+ struct nand_chip *chip = mtdinfo->priv;
+ int i;
+
+ for (i = 0; i < len; i++)
+ buf[i] = in_8 (chip->IO_ADDR_R);
+}
+
+static void tqm_write_buf (struct mtd_info *mtdinfo, const uint8_t * buf,
+ int len)
+{
+ struct nand_chip *chip = mtdinfo->priv;
+ int i;
+
+ for (i = 0; i < len; i++)
+ out_8 (chip->IO_ADDR_W, buf[i]);
+}
+
+static int tqm_verify_buf (struct mtd_info *mtdinfo, const uint8_t * buf,
+ int len)
+{
+ struct nand_chip *chip = mtdinfo->priv;
+ int i;
+
+ for (i = 0; i < len; i++) {
+ if (buf[i] != in_8 (chip->IO_ADDR_R))
+ return -EFAULT;
+ }
+
+ return 0;
+}
+#endif /* !CONFIG_NAND_SPL */
+
+void board_nand_select_device (struct nand_chip *nand, int chip)
+{
+}
+
+int board_nand_init (struct nand_chip *nand)
+{
+ /* initialize LBC3 for nand flash */
+
+ if (!nand_upm_init_done)
+ nand_upm_init ();
+
+ nand->eccmode = NAND_ECC_SOFT;
+
+ nand->hwcontrol = upmnand_hwcontrol;
+ nand->read_byte = upmnand_read_byte;
+ nand->write_byte = upmnand_write_byte;
+ nand->chip_delay = NAND_BIG_DELAY_US;
+#ifdef CONFIG_HAVE_NAND_RB
+ nand->dev_ready = tqm_dev_ready;
+#endif /* CONFIG_HAVE_NAND_RB */
+
+#ifndef CONFIG_NAND_SPL
+ nand->write_buf = tqm_write_buf;
+ nand->read_buf = tqm_read_buf;
+ nand->verify_buf = tqm_verify_buf;
+#endif /* CONFIG_NAND_SPL */
+
+ board_nand_select_device (nand, 0);
+ return 0;
+}
diff --git a/board/tqc/tqm85xx/tlb.c b/board/tqc/tqm85xx/tlb.c
index 7c4b9a1..7f4efc1 100644
--- a/board/tqc/tqm85xx/tlb.c
+++ b/board/tqc/tqm85xx/tlb.c
@@ -114,7 +114,7 @@ struct fsl_e_tlb_entry tlb_table[] = {
* TLB 6: 64M Non-cacheable, guarded
* 0xe0000000 1M CCSRBAR
* 0xe2000000 16M PCI1 IO
- * 0xe3000000 16M CAN
+ * 0xe3000000 16M CAN and NAND Flash
*/
SET_TLB_ENTRY (1, CFG_CCSRBAR, CFG_CCSRBAR_PHYS,
MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G,
diff --git a/include/configs/TQM85xx.h b/include/configs/TQM85xx.h
index 6e62c34..1e58066 100644
--- a/include/configs/TQM85xx.h
+++ b/include/configs/TQM85xx.h
@@ -55,6 +55,14 @@
#define CONFIG_MISC_INIT_R 1 /* Call misc_init_r */

/*
+ * NAND flash support (disabled by default)
+ *
+ * Warning: NAND support will likely increase the U-Boot image size
+ * to more than 256 KB. Please adjust TEXT_BASE if necessary.
+ */
+#undef CONFIG_NAND
+
+/*
* MPC8540 and MPC8548 don't have CPM module
*/
#if !defined(CONFIG_MPC8540) && !defined(CONFIG_MPC8548)
@@ -205,8 +213,8 @@
#define CFG_GBL_DATA_OFFSET (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE)
#define CFG_INIT_SP_OFFSET CFG_GBL_DATA_OFFSET

-#define CFG_MONITOR_LEN (256 * 1024) /* Reserve 256kB for Mon */
-#define CFG_MALLOC_LEN (256 * 1024) /* Reserved for malloc */
+#define CFG_MONITOR_LEN (~TEXT_BASE + 1)/* Reserved for Monitor */
+#define CFG_MALLOC_LEN (384 * 1024) /* Reserved for malloc */

/* Serial Port */
#if defined(CONFIG_TQM8560)
@@ -253,8 +261,8 @@
#define CONFIG_OF_STDOUT_VIA_ALIAS 1

/* CAN */
-#ifdef CONFIG_CAN_DRIVER
#define CFG_CAN_BASE 0xE3000000 /* CAN base address */
+#ifdef CONFIG_CAN_DRIVER
#define CFG_CAN_OR_AM 0xFFFF8000 /* 32 KiB address mask */
#define CFG_OR2_CAN (CFG_CAN_OR_AM | ORxU_BI)
#define CFG_BR2_CAN ((CFG_CAN_BASE & BRx_BA_MSK) | \
@@ -301,6 +309,52 @@
#define CFG_RIO_MEM_SIZE 0x20000000 /* 512M */
#endif /* CONFIG_PCIE1 */

+/* NAND FLASH */
+#ifdef CONFIG_NAND
+
+#undef CFG_NAND_LEGACY
+
+/* use JFFS2 ECC */
+#define CONFIG_MTD_NAND_ECC_JFFS2 1
+
+/* address distance between chip selects */
+#define CFG_NAND_SELECT_DEVICE 1
+#define CFG_NAND_CS_DIST 0x200
+
+#define CFG_NAND_SIZE 0x8000
+#define CFG_NAND0_BASE 0xE3010000
+#define CFG_NAND1_BASE (CFG_NAND0_BASE + CFG_NAND_CS_DIST)
+#define CFG_NAND2_BASE (CFG_NAND1_BASE + CFG_NAND_CS_DIST)
+#define CFG_NAND3_BASE (CFG_NAND2_BASE + CFG_NAND_CS_DIST)
+
+#define CFG_MAX_NAND_DEVICE 2 /* Max number of NAND devices */
+#define NAND_MAX_CHIPS 1
+
+#if (CFG_MAX_NAND_DEVICE == 1)
+#define CFG_NAND_BASE_LIST { CFG_NAND0_BASE }
+#elif (CFG_MAX_NAND_DEVICE == 2)
+#define CFG_NAND_QUIET_TEST 1
+#define CFG_NAND_BASE_LIST { CFG_NAND0_BASE, \
+ CFG_NAND1_BASE, \
+}
+#elif (CFG_MAX_NAND_DEVICE == 4)
+#define CFG_NAND_QUIET_TEST 1
+#define CFG_NAND_BASE_LIST { CFG_NAND0_BASE, \
+ CFG_NAND1_BASE, \
+ CFG_NAND2_BASE, \
+ CFG_NAND3_BASE, \
+}
+#endif
+
+/* CS3 for NAND Flash */
+#define CFG_BR3_PRELIM ((CFG_NAND0_BASE & BRx_BA_MSK) | BRx_PS_8 | \
+ BRx_MS_UPMB | BRx_V )
+#define CFG_OR3_PRELIM (P2SZ_TO_AM(CFG_NAND_SIZE) | ORxU_BI)
+
+#define NAND_BIG_DELAY_US 25 /* max tR for Samsung devices */
+
+#endif /* CONFIG_NAND */
+
/*
* General PCI
* Addresses are mapped 1-1.
@@ -486,6 +540,26 @@
#define CONFIG_BOOTP_GATEWAY
#define CONFIG_BOOTP_HOSTNAME

+#ifdef CONFIG_NAND
+/*
+ * Use NAND-FLash as JFFS2 device
+ */
+#define CONFIG_CMD_NAND
+#define CONFIG_CMD_JFFS2
+
+#define CONFIG_JFFS2_NAND 1
+
+#ifdef CONFIG_JFFS2_CMDLINE
+#define MTDIDS_DEFAULT "nand0=TQM85xx-nand"
+#define MTDPARTS_DEFAULT "mtdparts=TQM85xx-nand:-"
+#else
+#define CONFIG_JFFS2_DEV "nand0" /* NAND device jffs2 lives on */
+#define CONFIG_JFFS2_PART_OFFSET 0 /* start of jffs2 partition */
+#define CONFIG_JFFS2_PART_SIZE 0x200000 /* size of jffs2 partition */
+#endif /* CONFIG_JFFS2_CMDLINE */
+
+#endif /* CONFIG_NAND */
+
/*
* Command line configuration.
*/
diff --git a/include/mpc85xx.h b/include/mpc85xx.h
index c2a7510..d76957d 100644
--- a/include/mpc85xx.h
+++ b/include/mpc85xx.h
@@ -50,6 +50,7 @@
#define ORxG_CSNT 0x00000800 /* Chip Select Negation Time */

#define ORxU_EAD 0x00000001 /* External addr latch delay */
+#define ORxU_EHTR 0x00000002 /* extended hold time on read */
#define ORxU_BI 0x00000100 /* Burst Inhibit */
#define ORxU_AM_MSK 0xffff8000 /* Address Mask Mask */

@@ -60,7 +61,10 @@
#define MxMR_DSx_2_CYCL 0x00400000 /* 2 cycle Disable Period */
#define MxMR_DSx_3_CYCL 0x00800000 /* 3 cycle Disable Period */
#define MxMR_DSx_4_CYCL 0x00C00000 /* 4 cycle Disable Period */
+#define MxMR_OP_MSK 0x30000000 /* Command opcode mask */
#define MxMR_OP_WARR 0x10000000 /* Write to Array */
+#define MxMR_OP_RARR 0x20000000 /* Write to Array */
+#define MxMR_OP_RUN 0x30000000 /* Write to Array */
#define MxMR_BSEL 0x80000000 /* Bus Select */

/* helpers to convert values into an OR address mask (GPCM mode) */
--
1.5.2.2