[PATCH] OMAP3: Add support for NAND on ZOOM/LDP boards
Vimal Singh
vimalsingh at ti.com
Thu Nov 19 04:07:44 EST 2009
Adding NAND support for ZOOM2/3 and LDP board.
I have tested it for ZOOM2 boards. Someone can verify it for LDP
and ZOOM3 boards, hopefully it should not have any problem.
The size of the U-Boot environment partition was increased to 1.25MB.
Vikram: Changed ldp name to zoom.
Future boards will be called Zoom2/3/4 etc.
LDP is a Zoom1. Somhow the LDP name got stuck to that.
Signed-off-by: Vimal Singh <vimalsingh at ti.com>
Cc: Vikram Pandita <vikram.pandita at ti.com>
Cc: Tony Lindgren <tony at atomide.com>
---
arch/arm/mach-omap2/Makefile | 3 +
arch/arm/mach-omap2/board-ldp.c | 2 +
arch/arm/mach-omap2/board-zoom-flash.c | 92 ++++++++++++++++++++++++++
arch/arm/mach-omap2/board-zoom-peripherals.c | 2 +
arch/arm/plat-omap/include/plat/board-zoom.h | 36 ++++++++++
5 files changed, 135 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/mach-omap2/board-zoom-flash.c
create mode 100644 arch/arm/plat-omap/include/plat/board-zoom.h
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index b0e5b46..c2ca76e 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -62,6 +62,7 @@ obj-$(CONFIG_MACH_OMAP_APOLLON) += board-apollon.o
obj-$(CONFIG_MACH_OMAP3_BEAGLE) += board-omap3beagle.o \
mmc-twl4030.o
obj-$(CONFIG_MACH_OMAP_LDP) += board-ldp.o \
+ board-zoom-flash.o \
mmc-twl4030.o
obj-$(CONFIG_MACH_OVERO) += board-overo.o \
mmc-twl4030.o
@@ -78,10 +79,12 @@ obj-$(CONFIG_MACH_NOKIA_RX51) += board-rx51.o \
board-rx51-peripherals.o \
mmc-twl4030.o
obj-$(CONFIG_MACH_OMAP_ZOOM2) += board-zoom2.o \
+ board-zoom-flash.o \
board-zoom-peripherals.o \
mmc-twl4030.o \
board-zoom-debugboard.o
obj-$(CONFIG_MACH_OMAP_ZOOM3) += board-zoom3.o \
+ board-zoom-flash.o \
board-zoom-peripherals.o \
mmc-twl4030.o \
board-zoom-debugboard.o
diff --git a/arch/arm/mach-omap2/board-ldp.c b/arch/arm/mach-omap2/board-ldp.c
index c062238..8aebdf9 100644
--- a/arch/arm/mach-omap2/board-ldp.c
+++ b/arch/arm/mach-omap2/board-ldp.c
@@ -42,6 +42,7 @@
#include <asm/delay.h>
#include <plat/control.h>
#include <plat/usb.h>
+#include <plat/board-zoom.h>
#include "mmc-twl4030.h"
@@ -385,6 +386,7 @@ static void __init omap_ldp_init(void)
ads7846_dev_init();
omap_serial_init();
usb_musb_init();
+ zoom_flash_init();
twl4030_mmc_init(mmc);
/* link regulators to MMC adapters */
diff --git a/arch/arm/mach-omap2/board-zoom-flash.c
b/arch/arm/mach-omap2/board-zoom-flash.c
new file mode 100644
index 0000000..1867d6a
--- /dev/null
+++ b/arch/arm/mach-omap2/board-zoom-flash.c
@@ -0,0 +1,92 @@
+/*
+ * board-zoom-flash.c
+ *
+ * Copyright (C) 2008-09 Texas Instruments Inc.
+ *
+ * Modified from mach-omap2/board-2430sdp-flash.c
+ * Author(s): Vimal Singh <vimalsingh at ti.com>
+ * Rohit Choraria <rohitkc at ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/nand.h>
+#include <linux/types.h>
+#include <linux/io.h>
+
+#include <asm/mach/flash.h>
+#include <plat/board.h>
+#include <plat/gpmc.h>
+#include <plat/nand.h>
+
+#include <plat/board-zoom.h>
+
+static struct mtd_partition zoom_nand_partitions[] = {
+ /* All the partition sizes are listed in terms of NAND block size */
+ {
+ .name = "X-Loader-NAND",
+ .offset = 0,
+ .size = 4 * (64 * 2048), /* 512KB, 0x80000 */
+ .mask_flags = MTD_WRITEABLE, /* force read-only */
+ },
+ {
+ .name = "U-Boot-NAND",
+ .offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */
+ .size = 10 * (64 * 2048), /* 1.25MB, 0x140000 */
+ .mask_flags = MTD_WRITEABLE, /* force read-only */
+ },
+ {
+ .name = "Boot Env-NAND",
+ .offset = MTDPART_OFS_APPEND, /* Offset = 0x1c0000 */
+ .size = 2 * (64 * 2048), /* 256KB, 0x40000 */
+ },
+ {
+ .name = "Kernel-NAND",
+ .offset = MTDPART_OFS_APPEND, /* Offset = 0x0200000*/
+ .size = 240 * (64 * 2048), /* 30M, 0x1E00000 */
+ },
+ {
+ .name = "File System - NAND",
+ .offset = MTDPART_OFS_APPEND, /* Offset = 0x2000000 */
+ .size = MTDPART_SIZ_FULL,
+ },
+};
+
+/* NAND chip access: 16 bit */
+static struct omap_nand_platform_data zoom_nand_data = {
+ .parts = zoom_nand_partitions,
+ .nr_parts = ARRAY_SIZE(zoom_nand_partitions),
+ .nand_setup = NULL,
+ .dma_channel = -1, /* disable DMA in OMAP NAND driver */
+ .dev_ready = NULL,
+ .devsize = 1, /* '0' for 8-bit, '1' for 16-bit device */
+};
+
+/**
+ * zoom_flash_init - Identify devices connected to GPMC and register.
+ *
+ * @return - void.
+ */
+void __init zoom_flash_init(void)
+{
+ u8 nandcs = GPMC_CS_NUM + 1;
+ u32 gpmc_base_add = OMAP34XX_GPMC_VIRT;
+
+ /* pop nand part */
+ nandcs = LDP3430_NAND_CS;
+
+ zoom_nand_data.cs = nandcs;
+ zoom_nand_data.gpmc_cs_baseaddr = (void *)(gpmc_base_add +
+ GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE);
+ zoom_nand_data.gpmc_baseaddr = (void *) (gpmc_base_add);
+
+ gpmc_nand_init(&zoom_nand_data);
+}
+
diff --git a/arch/arm/mach-omap2/board-zoom-peripherals.c
b/arch/arm/mach-omap2/board-zoom-peripherals.c
index f14baa3..fcc2836 100755
--- a/arch/arm/mach-omap2/board-zoom-peripherals.c
+++ b/arch/arm/mach-omap2/board-zoom-peripherals.c
@@ -21,6 +21,7 @@
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
+#include <plat/board-zoom.h>
#include <plat/common.h>
#include <plat/usb.h>
@@ -264,4 +265,5 @@ void __init zoom_peripherals_init(void)
omap_i2c_init();
omap_serial_init();
usb_musb_init();
+ zoom_flash_init();
}
diff --git a/arch/arm/plat-omap/include/plat/board-zoom.h
b/arch/arm/plat-omap/include/plat/board-zoom.h
new file mode 100644
index 0000000..8d63f7e
--- /dev/null
+++ b/arch/arm/plat-omap/include/plat/board-zoom.h
@@ -0,0 +1,36 @@
+/*
+ * board-zoom.h
+ *
+ * Hardware definitions for TI OMAP3 LDP/ZOOM2.
+ *
+ * Copyright (C) 2008-09 Texas Instruments Inc.
+ *
+ * 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * 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.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef __ASM_ARCH_OMAP_LDP_H
+#define __ASM_ARCH_OMAP_LDP_H
+
+extern void zoom_flash_init(void);
+
+#define LDP3430_NAND_CS 0
+
+#endif /* __ASM_ARCH_OMAP_LDP_H */
--
1.5.5
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