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-rw-r--r--drivers/mtd/onenand/Makefile4
-rw-r--r--drivers/mtd/onenand/onenand_base.c18
-rw-r--r--drivers/mtd/onenand/onenand_spl.c146
3 files changed, 157 insertions, 11 deletions
diff --git a/drivers/mtd/onenand/Makefile b/drivers/mtd/onenand/Makefile
index b984bd4a2b..b090d40ea0 100644
--- a/drivers/mtd/onenand/Makefile
+++ b/drivers/mtd/onenand/Makefile
@@ -25,8 +25,12 @@ include $(TOPDIR)/config.mk
LIB := $(obj)libonenand.o
+ifndef CONFIG_SPL_BUILD
COBJS-$(CONFIG_CMD_ONENAND) := onenand_uboot.o onenand_base.o onenand_bbt.o
COBJS-$(CONFIG_SAMSUNG_ONENAND) += samsung.o
+else
+COBJS-y := onenand_spl.o
+endif
COBJS := $(COBJS-y)
SRCS := $(COBJS:.o=.c)
diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c
index 24e02c2840..06f187fdd7 100644
--- a/drivers/mtd/onenand/onenand_base.c
+++ b/drivers/mtd/onenand/onenand_base.c
@@ -1943,16 +1943,10 @@ static int onenand_do_lock_cmd(struct mtd_info *mtd, loff_t ofs, size_t len, int
{
struct onenand_chip *this = mtd->priv;
int start, end, block, value, status;
- int wp_status_mask;
start = onenand_block(this, ofs);
end = onenand_block(this, ofs + len);
- if (cmd == ONENAND_CMD_LOCK)
- wp_status_mask = ONENAND_WP_LS;
- else
- wp_status_mask = ONENAND_WP_US;
-
/* Continuous lock scheme */
if (this->options & ONENAND_HAS_CONT_LOCK) {
/* Set start block address */
@@ -2226,19 +2220,21 @@ static const struct onenand_manufacturers onenand_manuf_ids[] = {
static int onenand_check_maf(int manuf)
{
int size = ARRAY_SIZE(onenand_manuf_ids);
- char *name;
int i;
+#ifdef ONENAND_DEBUG
+ char *name;
+#endif
for (i = 0; i < size; i++)
if (manuf == onenand_manuf_ids[i].id)
break;
+#ifdef ONENAND_DEBUG
if (i < size)
name = onenand_manuf_ids[i].name;
else
name = "Unknown";
-#ifdef ONENAND_DEBUG
printk(KERN_DEBUG "OneNAND Manufacturer: %s (0x%0x)\n", name, manuf);
#endif
@@ -2255,7 +2251,7 @@ static int flexonenand_get_boundary(struct mtd_info *mtd)
{
struct onenand_chip *this = mtd->priv;
unsigned int die, bdry;
- int ret, syscfg, locked;
+ int syscfg, locked;
/* Disable ECC */
syscfg = this->read_word(this->base + ONENAND_REG_SYS_CFG1);
@@ -2266,7 +2262,7 @@ static int flexonenand_get_boundary(struct mtd_info *mtd)
this->wait(mtd, FL_SYNCING);
this->command(mtd, FLEXONENAND_CMD_READ_PI, die, 0);
- ret = this->wait(mtd, FL_READING);
+ this->wait(mtd, FL_READING);
bdry = this->read_word(this->base + ONENAND_DATARAM);
if ((bdry >> FLEXONENAND_PI_UNLOCK_SHIFT) == 3)
@@ -2276,7 +2272,7 @@ static int flexonenand_get_boundary(struct mtd_info *mtd)
this->boundary[die] = bdry & FLEXONENAND_PI_MASK;
this->command(mtd, ONENAND_CMD_RESET, 0, 0);
- ret = this->wait(mtd, FL_RESETING);
+ this->wait(mtd, FL_RESETING);
printk(KERN_INFO "Die %d boundary: %d%s\n", die,
this->boundary[die], locked ? "(Locked)" : "(Unlocked)");
diff --git a/drivers/mtd/onenand/onenand_spl.c b/drivers/mtd/onenand/onenand_spl.c
new file mode 100644
index 0000000000..50eaa71882
--- /dev/null
+++ b/drivers/mtd/onenand/onenand_spl.c
@@ -0,0 +1,146 @@
+/*
+ * Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com>
+ *
+ * Based on code:
+ * Copyright (C) 2005-2009 Samsung Electronics
+ * Kyungmin Park <kyungmin.park@samsung.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 <asm/io.h>
+#include <linux/mtd/onenand_regs.h>
+#include <onenand_uboot.h>
+
+/*
+ * Device geometry:
+ * - 2048b page, 128k erase block.
+ * - 4096b page, 256k erase block.
+ */
+enum onenand_spl_pagesize {
+ PAGE_2K = 2048,
+ PAGE_4K = 4096,
+};
+
+#define ONENAND_PAGES_PER_BLOCK 64
+#define onenand_block_address(block) (block)
+#define onenand_sector_address(page) (page << 2)
+#define onenand_buffer_address() ((1 << 3) << 8)
+#define onenand_bufferram_address(block) (0)
+
+static inline uint16_t onenand_readw(uint32_t addr)
+{
+ return readw(CONFIG_SYS_ONENAND_BASE + addr);
+}
+
+static inline void onenand_writew(uint16_t value, uint32_t addr)
+{
+ writew(value, CONFIG_SYS_ONENAND_BASE + addr);
+}
+
+static enum onenand_spl_pagesize onenand_spl_get_geometry(void)
+{
+ uint32_t dev_id, density;
+
+ if (!onenand_readw(ONENAND_REG_TECHNOLOGY)) {
+ dev_id = onenand_readw(ONENAND_REG_DEVICE_ID);
+ density = dev_id >> ONENAND_DEVICE_DENSITY_SHIFT;
+ density &= ONENAND_DEVICE_DENSITY_MASK;
+
+ if (density < ONENAND_DEVICE_DENSITY_4Gb)
+ return PAGE_2K;
+
+ if (dev_id & ONENAND_DEVICE_IS_DDP)
+ return PAGE_2K;
+ }
+
+ return PAGE_4K;
+}
+
+static int onenand_spl_read_page(uint32_t block, uint32_t page, uint32_t *buf,
+ enum onenand_spl_pagesize pagesize)
+{
+ const uint32_t addr = CONFIG_SYS_ONENAND_BASE + ONENAND_DATARAM;
+ uint32_t offset;
+
+ onenand_writew(onenand_block_address(block),
+ ONENAND_REG_START_ADDRESS1);
+
+ onenand_writew(onenand_bufferram_address(block),
+ ONENAND_REG_START_ADDRESS2);
+
+ onenand_writew(onenand_sector_address(page),
+ ONENAND_REG_START_ADDRESS8);
+
+ onenand_writew(onenand_buffer_address(),
+ ONENAND_REG_START_BUFFER);
+
+ onenand_writew(ONENAND_INT_CLEAR, ONENAND_REG_INTERRUPT);
+
+ onenand_writew(ONENAND_CMD_READ, ONENAND_REG_COMMAND);
+
+ while (!(onenand_readw(ONENAND_REG_INTERRUPT) & ONENAND_INT_READ))
+ continue;
+
+ /* Check for invalid block mark */
+ if (page < 2 && (onenand_readw(ONENAND_SPARERAM) != 0xffff))
+ return 1;
+
+ for (offset = 0; offset < pagesize; offset += 4)
+ buf[offset / 4] = readl(addr + offset);
+
+ return 0;
+}
+
+void onenand_spl_load_image(uint32_t offs, uint32_t size, void *dst)
+{
+ uint32_t *addr = (uint32_t *)dst;
+ uint32_t total_pages;
+ uint32_t block;
+ uint32_t page, rpage;
+ enum onenand_spl_pagesize pagesize;
+ int ret;
+
+ pagesize = onenand_spl_get_geometry();
+
+ /*
+ * The page can be either 2k or 4k, avoid using DIV_ROUND_UP to avoid
+ * pulling further unwanted functions into the SPL.
+ */
+ if (pagesize == 2048) {
+ total_pages = DIV_ROUND_UP(size, 2048);
+ page = offs / 2048;
+ } else {
+ total_pages = DIV_ROUND_UP(size, 4096);
+ page = offs / 4096;
+ }
+
+ for (; page <= total_pages; page++) {
+ block = page / ONENAND_PAGES_PER_BLOCK;
+ rpage = page & (ONENAND_PAGES_PER_BLOCK - 1);
+ ret = onenand_spl_read_page(block, rpage, addr, pagesize);
+ if (ret) {
+ total_pages += ONENAND_PAGES_PER_BLOCK;
+ page += ONENAND_PAGES_PER_BLOCK - 1;
+ } else {
+ addr += pagesize / 4;
+ }
+ }
+}
generated by cgit v1.2.3 (git 2.0.4) at 2024-07-07 02:40:05 +0000