summaryrefslogtreecommitdiff
path: root/drivers/mtd/nand
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/mtd/nand')
-rw-r--r--drivers/mtd/nand/Kconfig13
-rw-r--r--drivers/mtd/nand/Makefile3
-rw-r--r--drivers/mtd/nand/brcmnand/brcmnand.h4
-rw-r--r--drivers/mtd/nand/davinci_nand.c42
-rw-r--r--drivers/mtd/nand/denali_pci.c43
-rw-r--r--drivers/mtd/nand/diskonchip.c2
-rw-r--r--drivers/mtd/nand/fsl_ifc_nand.c258
-rw-r--r--drivers/mtd/nand/mxc_nand.c2
-rw-r--r--drivers/mtd/nand/nand_ids.c4
-rw-r--r--drivers/mtd/nand/nandsim.c28
-rw-r--r--drivers/mtd/nand/omap_elm.c2
-rw-r--r--drivers/mtd/nand/pxa3xx_nand.c58
-rw-r--r--drivers/mtd/nand/r852.c2
-rw-r--r--drivers/mtd/nand/sunxi_nand.c88
14 files changed, 304 insertions, 245 deletions
diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index 5b2806a7e..3324281d1 100644
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -42,23 +42,20 @@ config MTD_SM_COMMON
default n
config MTD_NAND_DENALI
- tristate "Support Denali NAND controller"
- depends on HAS_DMA
- help
- Enable support for the Denali NAND controller. This should be
- combined with either the PCI or platform drivers to provide device
- registration.
+ tristate
config MTD_NAND_DENALI_PCI
tristate "Support Denali NAND controller on Intel Moorestown"
- depends on PCI && MTD_NAND_DENALI
+ select MTD_NAND_DENALI
+ depends on HAS_DMA && PCI
help
Enable the driver for NAND flash on Intel Moorestown, using the
Denali NAND controller core.
config MTD_NAND_DENALI_DT
tristate "Support Denali NAND controller as a DT device"
- depends on HAVE_CLK && MTD_NAND_DENALI
+ select MTD_NAND_DENALI
+ depends on HAS_DMA && HAVE_CLK
help
Enable the driver for NAND flash on platforms using a Denali NAND
controller as a DT device.
diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile
index 1f897ec3c..075a02763 100644
--- a/drivers/mtd/nand/Makefile
+++ b/drivers/mtd/nand/Makefile
@@ -26,7 +26,8 @@ obj-$(CONFIG_MTD_NAND_CS553X) += cs553x_nand.o
obj-$(CONFIG_MTD_NAND_NDFC) += ndfc.o
obj-$(CONFIG_MTD_NAND_ATMEL) += atmel_nand.o
obj-$(CONFIG_MTD_NAND_GPIO) += gpio.o
-obj-$(CONFIG_MTD_NAND_OMAP2) += omap2.o
+omap2_nand-objs := omap2.o
+obj-$(CONFIG_MTD_NAND_OMAP2) += omap2_nand.o
obj-$(CONFIG_MTD_NAND_OMAP_BCH_BUILD) += omap_elm.o
obj-$(CONFIG_MTD_NAND_CM_X270) += cmx270_nand.o
obj-$(CONFIG_MTD_NAND_PXA3xx) += pxa3xx_nand.o
diff --git a/drivers/mtd/nand/brcmnand/brcmnand.h b/drivers/mtd/nand/brcmnand/brcmnand.h
index a20c73630..169f99e38 100644
--- a/drivers/mtd/nand/brcmnand/brcmnand.h
+++ b/drivers/mtd/nand/brcmnand/brcmnand.h
@@ -50,7 +50,7 @@ static inline u32 brcmnand_readl(void __iomem *addr)
* Other architectures (e.g., ARM) either do not support big endian, or
* else leave I/O in little endian mode.
*/
- if (IS_ENABLED(CONFIG_MIPS) && IS_ENABLED(__BIG_ENDIAN))
+ if (IS_ENABLED(CONFIG_MIPS) && IS_ENABLED(CONFIG_CPU_BIG_ENDIAN))
return __raw_readl(addr);
else
return readl_relaxed(addr);
@@ -59,7 +59,7 @@ static inline u32 brcmnand_readl(void __iomem *addr)
static inline void brcmnand_writel(u32 val, void __iomem *addr)
{
/* See brcmnand_readl() comments */
- if (IS_ENABLED(CONFIG_MIPS) && IS_ENABLED(__BIG_ENDIAN))
+ if (IS_ENABLED(CONFIG_MIPS) && IS_ENABLED(CONFIG_CPU_BIG_ENDIAN))
__raw_writel(val, addr);
else
writel_relaxed(val, addr);
diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c
index feb6d18de..b90801302 100644
--- a/drivers/mtd/nand/davinci_nand.c
+++ b/drivers/mtd/nand/davinci_nand.c
@@ -520,6 +520,32 @@ static struct nand_ecclayout hwecc4_2048 = {
},
};
+/*
+ * An ECC layout for using 4-bit ECC with large-page (4096bytes) flash,
+ * storing ten ECC bytes plus the manufacturer's bad block marker byte,
+ * and not overlapping the default BBT markers.
+ */
+static struct nand_ecclayout hwecc4_4096 = {
+ .eccbytes = 80,
+ .eccpos = {
+ /* at the end of spare sector */
+ 48, 49, 50, 51, 52, 53, 54, 55, 56, 57,
+ 58, 59, 60, 61, 62, 63, 64, 65, 66, 67,
+ 68, 69, 70, 71, 72, 73, 74, 75, 76, 77,
+ 78, 79, 80, 81, 82, 83, 84, 85, 86, 87,
+ 88, 89, 90, 91, 92, 93, 94, 95, 96, 97,
+ 98, 99, 100, 101, 102, 103, 104, 105, 106, 107,
+ 108, 109, 110, 111, 112, 113, 114, 115, 116, 117,
+ 118, 119, 120, 121, 122, 123, 124, 125, 126, 127,
+ },
+ .oobfree = {
+ /* 2 bytes at offset 0 hold manufacturer badblock markers */
+ {.offset = 2, .length = 46, },
+ /* 5 bytes at offset 8 hold BBT markers */
+ /* 8 bytes at offset 16 hold JFFS2 clean markers */
+ },
+};
+
#if defined(CONFIG_OF)
static const struct of_device_id davinci_nand_of_match[] = {
{.compatible = "ti,davinci-nand", },
@@ -796,18 +822,12 @@ static int nand_davinci_probe(struct platform_device *pdev)
info->chip.ecc.mode = NAND_ECC_HW_OOB_FIRST;
goto syndrome_done;
}
+ if (chunks == 8) {
+ info->ecclayout = hwecc4_4096;
+ info->chip.ecc.mode = NAND_ECC_HW_OOB_FIRST;
+ goto syndrome_done;
+ }
- /* 4KiB page chips are not yet supported. The eccpos from
- * nand_ecclayout cannot hold 80 bytes and change to eccpos[]
- * breaks userspace ioctl interface with mtd-utils. Once we
- * resolve this issue, NAND_ECC_HW_OOB_FIRST mode can be used
- * for the 4KiB page chips.
- *
- * TODO: Note that nand_ecclayout has now been expanded and can
- * hold plenty of OOB entries.
- */
- dev_warn(&pdev->dev, "no 4-bit ECC support yet "
- "for 4KiB-page NAND\n");
ret = -EIO;
goto err;
diff --git a/drivers/mtd/nand/denali_pci.c b/drivers/mtd/nand/denali_pci.c
index 6e2f387b8..de31514df 100644
--- a/drivers/mtd/nand/denali_pci.c
+++ b/drivers/mtd/nand/denali_pci.c
@@ -30,19 +30,19 @@ MODULE_DEVICE_TABLE(pci, denali_pci_ids);
static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
{
- int ret = -ENODEV;
+ int ret;
resource_size_t csr_base, mem_base;
unsigned long csr_len, mem_len;
struct denali_nand_info *denali;
- denali = kzalloc(sizeof(*denali), GFP_KERNEL);
+ denali = devm_kzalloc(&dev->dev, sizeof(*denali), GFP_KERNEL);
if (!denali)
return -ENOMEM;
- ret = pci_enable_device(dev);
+ ret = pcim_enable_device(dev);
if (ret) {
- pr_err("Spectra: pci_enable_device failed.\n");
- goto failed_alloc_memery;
+ dev_err(&dev->dev, "Spectra: pci_enable_device failed.\n");
+ return ret;
}
if (id->driver_data == INTEL_CE4100) {
@@ -69,20 +69,19 @@ static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
ret = pci_request_regions(dev, DENALI_NAND_NAME);
if (ret) {
- pr_err("Spectra: Unable to request memory regions\n");
- goto failed_enable_dev;
+ dev_err(&dev->dev, "Spectra: Unable to request memory regions\n");
+ return ret;
}
denali->flash_reg = ioremap_nocache(csr_base, csr_len);
if (!denali->flash_reg) {
- pr_err("Spectra: Unable to remap memory region\n");
- ret = -ENOMEM;
- goto failed_req_regions;
+ dev_err(&dev->dev, "Spectra: Unable to remap memory region\n");
+ return -ENOMEM;
}
denali->flash_mem = ioremap_nocache(mem_base, mem_len);
if (!denali->flash_mem) {
- pr_err("Spectra: ioremap_nocache failed!");
+ dev_err(&dev->dev, "Spectra: ioremap_nocache failed!");
ret = -ENOMEM;
goto failed_remap_reg;
}
@@ -99,13 +98,6 @@ failed_remap_mem:
iounmap(denali->flash_mem);
failed_remap_reg:
iounmap(denali->flash_reg);
-failed_req_regions:
- pci_release_regions(dev);
-failed_enable_dev:
- pci_disable_device(dev);
-failed_alloc_memery:
- kfree(denali);
-
return ret;
}
@@ -117,9 +109,6 @@ static void denali_pci_remove(struct pci_dev *dev)
denali_remove(denali);
iounmap(denali->flash_reg);
iounmap(denali->flash_mem);
- pci_release_regions(dev);
- pci_disable_device(dev);
- kfree(denali);
}
static struct pci_driver denali_pci_driver = {
@@ -129,14 +118,4 @@ static struct pci_driver denali_pci_driver = {
.remove = denali_pci_remove,
};
-static int denali_init_pci(void)
-{
- return pci_register_driver(&denali_pci_driver);
-}
-module_init(denali_init_pci);
-
-static void denali_exit_pci(void)
-{
- pci_unregister_driver(&denali_pci_driver);
-}
-module_exit(denali_exit_pci);
+module_pci_driver(denali_pci_driver);
diff --git a/drivers/mtd/nand/diskonchip.c b/drivers/mtd/nand/diskonchip.c
index 7da266a53..0802158a3 100644
--- a/drivers/mtd/nand/diskonchip.c
+++ b/drivers/mtd/nand/diskonchip.c
@@ -24,7 +24,7 @@
#include <linux/rslib.h>
#include <linux/moduleparam.h>
#include <linux/slab.h>
-#include <asm/io.h>
+#include <linux/io.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/nand.h>
diff --git a/drivers/mtd/nand/fsl_ifc_nand.c b/drivers/mtd/nand/fsl_ifc_nand.c
index 51394e599..a4e27e891 100644
--- a/drivers/mtd/nand/fsl_ifc_nand.c
+++ b/drivers/mtd/nand/fsl_ifc_nand.c
@@ -238,8 +238,8 @@ static void set_addr(struct mtd_info *mtd, int column, int page_addr, int oob)
ifc_nand_ctrl->page = page_addr;
/* Program ROW0/COL0 */
- iowrite32be(page_addr, &ifc->ifc_nand.row0);
- iowrite32be((oob ? IFC_NAND_COL_MS : 0) | column, &ifc->ifc_nand.col0);
+ ifc_out32(page_addr, &ifc->ifc_nand.row0);
+ ifc_out32((oob ? IFC_NAND_COL_MS : 0) | column, &ifc->ifc_nand.col0);
buf_num = page_addr & priv->bufnum_mask;
@@ -301,19 +301,19 @@ static void fsl_ifc_run_command(struct mtd_info *mtd)
int i;
/* set the chip select for NAND Transaction */
- iowrite32be(priv->bank << IFC_NAND_CSEL_SHIFT,
- &ifc->ifc_nand.nand_csel);
+ ifc_out32(priv->bank << IFC_NAND_CSEL_SHIFT,
+ &ifc->ifc_nand.nand_csel);
dev_vdbg(priv->dev,
"%s: fir0=%08x fcr0=%08x\n",
__func__,
- ioread32be(&ifc->ifc_nand.nand_fir0),
- ioread32be(&ifc->ifc_nand.nand_fcr0));
+ ifc_in32(&ifc->ifc_nand.nand_fir0),
+ ifc_in32(&ifc->ifc_nand.nand_fcr0));
ctrl->nand_stat = 0;
/* start read/write seq */
- iowrite32be(IFC_NAND_SEQ_STRT_FIR_STRT, &ifc->ifc_nand.nandseq_strt);
+ ifc_out32(IFC_NAND_SEQ_STRT_FIR_STRT, &ifc->ifc_nand.nandseq_strt);
/* wait for command complete flag or timeout */
wait_event_timeout(ctrl->nand_wait, ctrl->nand_stat,
@@ -336,7 +336,7 @@ static void fsl_ifc_run_command(struct mtd_info *mtd)
int sector_end = sector + chip->ecc.steps - 1;
for (i = sector / 4; i <= sector_end / 4; i++)
- eccstat[i] = ioread32be(&ifc->ifc_nand.nand_eccstat[i]);
+ eccstat[i] = ifc_in32(&ifc->ifc_nand.nand_eccstat[i]);
for (i = sector; i <= sector_end; i++) {
errors = check_read_ecc(mtd, ctrl, eccstat, i);
@@ -376,33 +376,33 @@ static void fsl_ifc_do_read(struct nand_chip *chip,
/* Program FIR/IFC_NAND_FCR0 for Small/Large page */
if (mtd->writesize > 512) {
- iowrite32be((IFC_FIR_OP_CW0 << IFC_NAND_FIR0_OP0_SHIFT) |
- (IFC_FIR_OP_CA0 << IFC_NAND_FIR0_OP1_SHIFT) |
- (IFC_FIR_OP_RA0 << IFC_NAND_FIR0_OP2_SHIFT) |
- (IFC_FIR_OP_CMD1 << IFC_NAND_FIR0_OP3_SHIFT) |
- (IFC_FIR_OP_RBCD << IFC_NAND_FIR0_OP4_SHIFT),
- &ifc->ifc_nand.nand_fir0);
- iowrite32be(0x0, &ifc->ifc_nand.nand_fir1);
-
- iowrite32be((NAND_CMD_READ0 << IFC_NAND_FCR0_CMD0_SHIFT) |
- (NAND_CMD_READSTART << IFC_NAND_FCR0_CMD1_SHIFT),
- &ifc->ifc_nand.nand_fcr0);
+ ifc_out32((IFC_FIR_OP_CW0 << IFC_NAND_FIR0_OP0_SHIFT) |
+ (IFC_FIR_OP_CA0 << IFC_NAND_FIR0_OP1_SHIFT) |
+ (IFC_FIR_OP_RA0 << IFC_NAND_FIR0_OP2_SHIFT) |
+ (IFC_FIR_OP_CMD1 << IFC_NAND_FIR0_OP3_SHIFT) |
+ (IFC_FIR_OP_RBCD << IFC_NAND_FIR0_OP4_SHIFT),
+ &ifc->ifc_nand.nand_fir0);
+ ifc_out32(0x0, &ifc->ifc_nand.nand_fir1);
+
+ ifc_out32((NAND_CMD_READ0 << IFC_NAND_FCR0_CMD0_SHIFT) |
+ (NAND_CMD_READSTART << IFC_NAND_FCR0_CMD1_SHIFT),
+ &ifc->ifc_nand.nand_fcr0);
} else {
- iowrite32be((IFC_FIR_OP_CW0 << IFC_NAND_FIR0_OP0_SHIFT) |
- (IFC_FIR_OP_CA0 << IFC_NAND_FIR0_OP1_SHIFT) |
- (IFC_FIR_OP_RA0 << IFC_NAND_FIR0_OP2_SHIFT) |
- (IFC_FIR_OP_RBCD << IFC_NAND_FIR0_OP3_SHIFT),
- &ifc->ifc_nand.nand_fir0);
- iowrite32be(0x0, &ifc->ifc_nand.nand_fir1);
+ ifc_out32((IFC_FIR_OP_CW0 << IFC_NAND_FIR0_OP0_SHIFT) |
+ (IFC_FIR_OP_CA0 << IFC_NAND_FIR0_OP1_SHIFT) |
+ (IFC_FIR_OP_RA0 << IFC_NAND_FIR0_OP2_SHIFT) |
+ (IFC_FIR_OP_RBCD << IFC_NAND_FIR0_OP3_SHIFT),
+ &ifc->ifc_nand.nand_fir0);
+ ifc_out32(0x0, &ifc->ifc_nand.nand_fir1);
if (oob)
- iowrite32be(NAND_CMD_READOOB <<
- IFC_NAND_FCR0_CMD0_SHIFT,
- &ifc->ifc_nand.nand_fcr0);
+ ifc_out32(NAND_CMD_READOOB <<
+ IFC_NAND_FCR0_CMD0_SHIFT,
+ &ifc->ifc_nand.nand_fcr0);
else
- iowrite32be(NAND_CMD_READ0 <<
- IFC_NAND_FCR0_CMD0_SHIFT,
- &ifc->ifc_nand.nand_fcr0);
+ ifc_out32(NAND_CMD_READ0 <<
+ IFC_NAND_FCR0_CMD0_SHIFT,
+ &ifc->ifc_nand.nand_fcr0);
}
}
@@ -422,7 +422,7 @@ static void fsl_ifc_cmdfunc(struct mtd_info *mtd, unsigned int command,
switch (command) {
/* READ0 read the entire buffer to use hardware ECC. */
case NAND_CMD_READ0:
- iowrite32be(0, &ifc->ifc_nand.nand_fbcr);
+ ifc_out32(0, &ifc->ifc_nand.nand_fbcr);
set_addr(mtd, 0, page_addr, 0);
ifc_nand_ctrl->read_bytes = mtd->writesize + mtd->oobsize;
@@ -437,7 +437,7 @@ static void fsl_ifc_cmdfunc(struct mtd_info *mtd, unsigned int command,
/* READOOB reads only the OOB because no ECC is performed. */
case NAND_CMD_READOOB:
- iowrite32be(mtd->oobsize - column, &ifc->ifc_nand.nand_fbcr);
+ ifc_out32(mtd->oobsize - column, &ifc->ifc_nand.nand_fbcr);
set_addr(mtd, column, page_addr, 1);
ifc_nand_ctrl->read_bytes = mtd->writesize + mtd->oobsize;
@@ -453,19 +453,19 @@ static void fsl_ifc_cmdfunc(struct mtd_info *mtd, unsigned int command,
if (command == NAND_CMD_PARAM)
timing = IFC_FIR_OP_RBCD;
- iowrite32be((IFC_FIR_OP_CW0 << IFC_NAND_FIR0_OP0_SHIFT) |
- (IFC_FIR_OP_UA << IFC_NAND_FIR0_OP1_SHIFT) |
- (timing << IFC_NAND_FIR0_OP2_SHIFT),
- &ifc->ifc_nand.nand_fir0);
- iowrite32be(command << IFC_NAND_FCR0_CMD0_SHIFT,
- &ifc->ifc_nand.nand_fcr0);
- iowrite32be(column, &ifc->ifc_nand.row3);
+ ifc_out32((IFC_FIR_OP_CW0 << IFC_NAND_FIR0_OP0_SHIFT) |
+ (IFC_FIR_OP_UA << IFC_NAND_FIR0_OP1_SHIFT) |
+ (timing << IFC_NAND_FIR0_OP2_SHIFT),
+ &ifc->ifc_nand.nand_fir0);
+ ifc_out32(command << IFC_NAND_FCR0_CMD0_SHIFT,
+ &ifc->ifc_nand.nand_fcr0);
+ ifc_out32(column, &ifc->ifc_nand.row3);
/*
* although currently it's 8 bytes for READID, we always read
* the maximum 256 bytes(for PARAM)
*/
- iowrite32be(256, &ifc->ifc_nand.nand_fbcr);
+ ifc_out32(256, &ifc->ifc_nand.nand_fbcr);
ifc_nand_ctrl->read_bytes = 256;
set_addr(mtd, 0, 0, 0);
@@ -480,16 +480,16 @@ static void fsl_ifc_cmdfunc(struct mtd_info *mtd, unsigned int command,
/* ERASE2 uses the block and page address from ERASE1 */
case NAND_CMD_ERASE2:
- iowrite32be((IFC_FIR_OP_CW0 << IFC_NAND_FIR0_OP0_SHIFT) |
- (IFC_FIR_OP_RA0 << IFC_NAND_FIR0_OP1_SHIFT) |
- (IFC_FIR_OP_CMD1 << IFC_NAND_FIR0_OP2_SHIFT),
- &ifc->ifc_nand.nand_fir0);
+ ifc_out32((IFC_FIR_OP_CW0 << IFC_NAND_FIR0_OP0_SHIFT) |
+ (IFC_FIR_OP_RA0 << IFC_NAND_FIR0_OP1_SHIFT) |
+ (IFC_FIR_OP_CMD1 << IFC_NAND_FIR0_OP2_SHIFT),
+ &ifc->ifc_nand.nand_fir0);
- iowrite32be((NAND_CMD_ERASE1 << IFC_NAND_FCR0_CMD0_SHIFT) |
- (NAND_CMD_ERASE2 << IFC_NAND_FCR0_CMD1_SHIFT),
- &ifc->ifc_nand.nand_fcr0);
+ ifc_out32((NAND_CMD_ERASE1 << IFC_NAND_FCR0_CMD0_SHIFT) |
+ (NAND_CMD_ERASE2 << IFC_NAND_FCR0_CMD1_SHIFT),
+ &ifc->ifc_nand.nand_fcr0);
- iowrite32be(0, &ifc->ifc_nand.nand_fbcr);
+ ifc_out32(0, &ifc->ifc_nand.nand_fbcr);
ifc_nand_ctrl->read_bytes = 0;
fsl_ifc_run_command(mtd);
return;
@@ -506,19 +506,18 @@ static void fsl_ifc_cmdfunc(struct mtd_info *mtd, unsigned int command,
(NAND_CMD_STATUS << IFC_NAND_FCR0_CMD1_SHIFT) |
(NAND_CMD_PAGEPROG << IFC_NAND_FCR0_CMD2_SHIFT);
- iowrite32be(
- (IFC_FIR_OP_CW0 << IFC_NAND_FIR0_OP0_SHIFT) |
- (IFC_FIR_OP_CA0 << IFC_NAND_FIR0_OP1_SHIFT) |
- (IFC_FIR_OP_RA0 << IFC_NAND_FIR0_OP2_SHIFT) |
- (IFC_FIR_OP_WBCD << IFC_NAND_FIR0_OP3_SHIFT) |
- (IFC_FIR_OP_CMD2 << IFC_NAND_FIR0_OP4_SHIFT),
- &ifc->ifc_nand.nand_fir0);
- iowrite32be(
- (IFC_FIR_OP_CW1 << IFC_NAND_FIR1_OP5_SHIFT) |
- (IFC_FIR_OP_RDSTAT <<
- IFC_NAND_FIR1_OP6_SHIFT) |
- (IFC_FIR_OP_NOP << IFC_NAND_FIR1_OP7_SHIFT),
- &ifc->ifc_nand.nand_fir1);
+ ifc_out32(
+ (IFC_FIR_OP_CW0 << IFC_NAND_FIR0_OP0_SHIFT) |
+ (IFC_FIR_OP_CA0 << IFC_NAND_FIR0_OP1_SHIFT) |
+ (IFC_FIR_OP_RA0 << IFC_NAND_FIR0_OP2_SHIFT) |
+ (IFC_FIR_OP_WBCD << IFC_NAND_FIR0_OP3_SHIFT) |
+ (IFC_FIR_OP_CMD2 << IFC_NAND_FIR0_OP4_SHIFT),
+ &ifc->ifc_nand.nand_fir0);
+ ifc_out32(
+ (IFC_FIR_OP_CW1 << IFC_NAND_FIR1_OP5_SHIFT) |
+ (IFC_FIR_OP_RDSTAT << IFC_NAND_FIR1_OP6_SHIFT) |
+ (IFC_FIR_OP_NOP << IFC_NAND_FIR1_OP7_SHIFT),
+ &ifc->ifc_nand.nand_fir1);
} else {
nand_fcr0 = ((NAND_CMD_PAGEPROG <<
IFC_NAND_FCR0_CMD1_SHIFT) |
@@ -527,20 +526,19 @@ static void fsl_ifc_cmdfunc(struct mtd_info *mtd, unsigned int command,
(NAND_CMD_STATUS <<
IFC_NAND_FCR0_CMD3_SHIFT));
- iowrite32be(
+ ifc_out32(
(IFC_FIR_OP_CW0 << IFC_NAND_FIR0_OP0_SHIFT) |
(IFC_FIR_OP_CMD2 << IFC_NAND_FIR0_OP1_SHIFT) |
(IFC_FIR_OP_CA0 << IFC_NAND_FIR0_OP2_SHIFT) |
(IFC_FIR_OP_RA0 << IFC_NAND_FIR0_OP3_SHIFT) |
(IFC_FIR_OP_WBCD << IFC_NAND_FIR0_OP4_SHIFT),
&ifc->ifc_nand.nand_fir0);
- iowrite32be(
- (IFC_FIR_OP_CMD1 << IFC_NAND_FIR1_OP5_SHIFT) |
- (IFC_FIR_OP_CW3 << IFC_NAND_FIR1_OP6_SHIFT) |
- (IFC_FIR_OP_RDSTAT <<
- IFC_NAND_FIR1_OP7_SHIFT) |
- (IFC_FIR_OP_NOP << IFC_NAND_FIR1_OP8_SHIFT),
- &ifc->ifc_nand.nand_fir1);
+ ifc_out32(
+ (IFC_FIR_OP_CMD1 << IFC_NAND_FIR1_OP5_SHIFT) |
+ (IFC_FIR_OP_CW3 << IFC_NAND_FIR1_OP6_SHIFT) |
+ (IFC_FIR_OP_RDSTAT << IFC_NAND_FIR1_OP7_SHIFT) |
+ (IFC_FIR_OP_NOP << IFC_NAND_FIR1_OP8_SHIFT),
+ &ifc->ifc_nand.nand_fir1);
if (column >= mtd->writesize)
nand_fcr0 |=
@@ -555,7 +553,7 @@ static void fsl_ifc_cmdfunc(struct mtd_info *mtd, unsigned int command,
column -= mtd->writesize;
ifc_nand_ctrl->oob = 1;
}
- iowrite32be(nand_fcr0, &ifc->ifc_nand.nand_fcr0);
+ ifc_out32(nand_fcr0, &ifc->ifc_nand.nand_fcr0);
set_addr(mtd, column, page_addr, ifc_nand_ctrl->oob);
return;
}
@@ -563,24 +561,26 @@ static void fsl_ifc_cmdfunc(struct mtd_info *mtd, unsigned int command,
/* PAGEPROG reuses all of the setup from SEQIN and adds the length */
case NAND_CMD_PAGEPROG: {
if (ifc_nand_ctrl->oob) {
- iowrite32be(ifc_nand_ctrl->index -
- ifc_nand_ctrl->column,
- &ifc->ifc_nand.nand_fbcr);
+ ifc_out32(ifc_nand_ctrl->index -
+ ifc_nand_ctrl->column,
+ &ifc->ifc_nand.nand_fbcr);
} else {
- iowrite32be(0, &ifc->ifc_nand.nand_fbcr);
+ ifc_out32(0, &ifc->ifc_nand.nand_fbcr);
}
fsl_ifc_run_command(mtd);
return;
}
- case NAND_CMD_STATUS:
- iowrite32be((IFC_FIR_OP_CW0 << IFC_NAND_FIR0_OP0_SHIFT) |
- (IFC_FIR_OP_RB << IFC_NAND_FIR0_OP1_SHIFT),
- &ifc->ifc_nand.nand_fir0);
- iowrite32be(NAND_CMD_STATUS << IFC_NAND_FCR0_CMD0_SHIFT,
- &ifc->ifc_nand.nand_fcr0);
- iowrite32be(1, &ifc->ifc_nand.nand_fbcr);
+ case NAND_CMD_STATUS: {
+ void __iomem *addr;
+
+ ifc_out32((IFC_FIR_OP_CW0 << IFC_NAND_FIR0_OP0_SHIFT) |
+ (IFC_FIR_OP_RB << IFC_NAND_FIR0_OP1_SHIFT),
+ &ifc->ifc_nand.nand_fir0);
+ ifc_out32(NAND_CMD_STATUS << IFC_NAND_FCR0_CMD0_SHIFT,
+ &ifc->ifc_nand.nand_fcr0);
+ ifc_out32(1, &ifc->ifc_nand.nand_fbcr);
set_addr(mtd, 0, 0, 0);
ifc_nand_ctrl->read_bytes = 1;
@@ -590,17 +590,19 @@ static void fsl_ifc_cmdfunc(struct mtd_info *mtd, unsigned int command,
* The chip always seems to report that it is
* write-protected, even when it is not.
*/
+ addr = ifc_nand_ctrl->addr;
if (chip->options & NAND_BUSWIDTH_16)
- setbits16(ifc_nand_ctrl->addr, NAND_STATUS_WP);
+ ifc_out16(ifc_in16(addr) | (NAND_STATUS_WP), addr);
else
- setbits8(ifc_nand_ctrl->addr, NAND_STATUS_WP);
+ ifc_out8(ifc_in8(addr) | (NAND_STATUS_WP), addr);
return;
+ }
case NAND_CMD_RESET:
- iowrite32be(IFC_FIR_OP_CW0 << IFC_NAND_FIR0_OP0_SHIFT,
- &ifc->ifc_nand.nand_fir0);
- iowrite32be(NAND_CMD_RESET << IFC_NAND_FCR0_CMD0_SHIFT,
- &ifc->ifc_nand.nand_fcr0);
+ ifc_out32(IFC_FIR_OP_CW0 << IFC_NAND_FIR0_OP0_SHIFT,
+ &ifc->ifc_nand.nand_fir0);
+ ifc_out32(NAND_CMD_RESET << IFC_NAND_FCR0_CMD0_SHIFT,
+ &ifc->ifc_nand.nand_fcr0);
fsl_ifc_run_command(mtd);
return;
@@ -658,7 +660,7 @@ static uint8_t fsl_ifc_read_byte(struct mtd_info *mtd)
*/
if (ifc_nand_ctrl->index < ifc_nand_ctrl->read_bytes) {
offset = ifc_nand_ctrl->index++;
- return in_8(ifc_nand_ctrl->addr + offset);
+ return ifc_in8(ifc_nand_ctrl->addr + offset);
}
dev_err(priv->dev, "%s: beyond end of buffer\n", __func__);
@@ -680,7 +682,7 @@ static uint8_t fsl_ifc_read_byte16(struct mtd_info *mtd)
* next byte.
*/
if (ifc_nand_ctrl->index < ifc_nand_ctrl->read_bytes) {
- data = in_be16(ifc_nand_ctrl->addr + ifc_nand_ctrl->index);
+ data = ifc_in16(ifc_nand_ctrl->addr + ifc_nand_ctrl->index);
ifc_nand_ctrl->index += 2;
return (uint8_t) data;
}
@@ -726,18 +728,18 @@ static int fsl_ifc_wait(struct mtd_info *mtd, struct nand_chip *chip)
u32 nand_fsr;
/* Use READ_STATUS command, but wait for the device to be ready */
- iowrite32be((IFC_FIR_OP_CW0 << IFC_NAND_FIR0_OP0_SHIFT) |
- (IFC_FIR_OP_RDSTAT << IFC_NAND_FIR0_OP1_SHIFT),
- &ifc->ifc_nand.nand_fir0);
- iowrite32be(NAND_CMD_STATUS << IFC_NAND_FCR0_CMD0_SHIFT,
- &ifc->ifc_nand.nand_fcr0);
- iowrite32be(1, &ifc->ifc_nand.nand_fbcr);
+ ifc_out32((IFC_FIR_OP_CW0 << IFC_NAND_FIR0_OP0_SHIFT) |
+ (IFC_FIR_OP_RDSTAT << IFC_NAND_FIR0_OP1_SHIFT),
+ &ifc->ifc_nand.nand_fir0);
+ ifc_out32(NAND_CMD_STATUS << IFC_NAND_FCR0_CMD0_SHIFT,
+ &ifc->ifc_nand.nand_fcr0);
+ ifc_out32(1, &ifc->ifc_nand.nand_fbcr);
set_addr(mtd, 0, 0, 0);
ifc_nand_ctrl->read_bytes = 1;
fsl_ifc_run_command(mtd);
- nand_fsr = ioread32be(&ifc->ifc_nand.nand_fsr);
+ nand_fsr = ifc_in32(&ifc->ifc_nand.nand_fsr);
/*
* The chip always seems to report that it is
@@ -829,34 +831,34 @@ static void fsl_ifc_sram_init(struct fsl_ifc_mtd *priv)
uint32_t cs = priv->bank;
/* Save CSOR and CSOR_ext */
- csor = ioread32be(&ifc->csor_cs[cs].csor);
- csor_ext = ioread32be(&ifc->csor_cs[cs].csor_ext);
+ csor = ifc_in32(&ifc->csor_cs[cs].csor);
+ csor_ext = ifc_in32(&ifc->csor_cs[cs].csor_ext);
/* chage PageSize 8K and SpareSize 1K*/
csor_8k = (csor & ~(CSOR_NAND_PGS_MASK)) | 0x0018C000;
- iowrite32be(csor_8k, &ifc->csor_cs[cs].csor);
- iowrite32be(0x0000400, &ifc->csor_cs[cs].csor_ext);
+ ifc_out32(csor_8k, &ifc->csor_cs[cs].csor);
+ ifc_out32(0x0000400, &ifc->csor_cs[cs].csor_ext);
/* READID */
- iowrite32be((IFC_FIR_OP_CW0 << IFC_NAND_FIR0_OP0_SHIFT) |
- (IFC_FIR_OP_UA << IFC_NAND_FIR0_OP1_SHIFT) |
- (IFC_FIR_OP_RB << IFC_NAND_FIR0_OP2_SHIFT),
- &ifc->ifc_nand.nand_fir0);
- iowrite32be(NAND_CMD_READID << IFC_NAND_FCR0_CMD0_SHIFT,
- &ifc->ifc_nand.nand_fcr0);
- iowrite32be(0x0, &ifc->ifc_nand.row3);
+ ifc_out32((IFC_FIR_OP_CW0 << IFC_NAND_FIR0_OP0_SHIFT) |
+ (IFC_FIR_OP_UA << IFC_NAND_FIR0_OP1_SHIFT) |
+ (IFC_FIR_OP_RB << IFC_NAND_FIR0_OP2_SHIFT),
+ &ifc->ifc_nand.nand_fir0);
+ ifc_out32(NAND_CMD_READID << IFC_NAND_FCR0_CMD0_SHIFT,
+ &ifc->ifc_nand.nand_fcr0);
+ ifc_out32(0x0, &ifc->ifc_nand.row3);
- iowrite32be(0x0, &ifc->ifc_nand.nand_fbcr);
+ ifc_out32(0x0, &ifc->ifc_nand.nand_fbcr);
/* Program ROW0/COL0 */
- iowrite32be(0x0, &ifc->ifc_nand.row0);
- iowrite32be(0x0, &ifc->ifc_nand.col0);
+ ifc_out32(0x0, &ifc->ifc_nand.row0);
+ ifc_out32(0x0, &ifc->ifc_nand.col0);
/* set the chip select for NAND Transaction */
- iowrite32be(cs << IFC_NAND_CSEL_SHIFT, &ifc->ifc_nand.nand_csel);
+ ifc_out32(cs << IFC_NAND_CSEL_SHIFT, &ifc->ifc_nand.nand_csel);
/* start read seq */
- iowrite32be(IFC_NAND_SEQ_STRT_FIR_STRT, &ifc->ifc_nand.nandseq_strt);
+ ifc_out32(IFC_NAND_SEQ_STRT_FIR_STRT, &ifc->ifc_nand.nandseq_strt);
/* wait for command complete flag or timeout */
wait_event_timeout(ctrl->nand_wait, ctrl->nand_stat,
@@ -866,8 +868,8 @@ static void fsl_ifc_sram_init(struct fsl_ifc_mtd *priv)
printk(KERN_ERR "fsl-ifc: Failed to Initialise SRAM\n");
/* Restore CSOR and CSOR_ext */
- iowrite32be(csor, &ifc->csor_cs[cs].csor);
- iowrite32be(csor_ext, &ifc->csor_cs[cs].csor_ext);
+ ifc_out32(csor, &ifc->csor_cs[cs].csor);
+ ifc_out32(csor_ext, &ifc->csor_cs[cs].csor_ext);
}
static int fsl_ifc_chip_init(struct fsl_ifc_mtd *priv)
@@ -884,7 +886,7 @@ static int fsl_ifc_chip_init(struct fsl_ifc_mtd *priv)
/* fill in nand_chip structure */
/* set up function call table */
- if ((ioread32be(&ifc->cspr_cs[priv->bank].cspr)) & CSPR_PORT_SIZE_16)
+ if ((ifc_in32(&ifc->cspr_cs[priv->bank].cspr)) & CSPR_PORT_SIZE_16)
chip->read_byte = fsl_ifc_read_byte16;
else
chip->read_byte = fsl_ifc_read_byte;
@@ -898,13 +900,13 @@ static int fsl_ifc_chip_init(struct fsl_ifc_mtd *priv)
chip->bbt_td = &bbt_main_descr;
chip->bbt_md = &bbt_mirror_descr;
- iowrite32be(0x0, &ifc->ifc_nand.ncfgr);
+ ifc_out32(0x0, &ifc->ifc_nand.ncfgr);
/* set up nand options */
chip->bbt_options = NAND_BBT_USE_FLASH;
chip->options = NAND_NO_SUBPAGE_WRITE;
- if (ioread32be(&ifc->cspr_cs[priv->bank].cspr) & CSPR_PORT_SIZE_16) {
+ if (ifc_in32(&ifc->cspr_cs[priv->bank].cspr) & CSPR_PORT_SIZE_16) {
chip->read_byte = fsl_ifc_read_byte16;
chip->options |= NAND_BUSWIDTH_16;
} else {
@@ -917,7 +919,7 @@ static int fsl_ifc_chip_init(struct fsl_ifc_mtd *priv)
chip->ecc.read_page = fsl_ifc_read_page;
chip->ecc.write_page = fsl_ifc_write_page;
- csor = ioread32be(&ifc->csor_cs[priv->bank].csor);
+ csor = ifc_in32(&ifc->csor_cs[priv->bank].csor);
/* Hardware generates ECC per 512 Bytes */
chip->ecc.size = 512;
@@ -1006,7 +1008,7 @@ static int fsl_ifc_chip_remove(struct fsl_ifc_mtd *priv)
static int match_bank(struct fsl_ifc_regs __iomem *ifc, int bank,
phys_addr_t addr)
{
- u32 cspr = ioread32be(&ifc->cspr_cs[bank].cspr);
+ u32 cspr = ifc_in32(&ifc->cspr_cs[bank].cspr);
if (!(cspr & CSPR_V))
return 0;
@@ -1092,16 +1094,16 @@ static int fsl_ifc_nand_probe(struct platform_device *dev)
dev_set_drvdata(priv->dev, priv);
- iowrite32be(IFC_NAND_EVTER_EN_OPC_EN |
- IFC_NAND_EVTER_EN_FTOER_EN |
- IFC_NAND_EVTER_EN_WPER_EN,
- &ifc->ifc_nand.nand_evter_en);
+ ifc_out32(IFC_NAND_EVTER_EN_OPC_EN |
+ IFC_NAND_EVTER_EN_FTOER_EN |
+ IFC_NAND_EVTER_EN_WPER_EN,
+ &ifc->ifc_nand.nand_evter_en);
/* enable NAND Machine Interrupts */
- iowrite32be(IFC_NAND_EVTER_INTR_OPCIR_EN |
- IFC_NAND_EVTER_INTR_FTOERIR_EN |
- IFC_NAND_EVTER_INTR_WPERIR_EN,
- &ifc->ifc_nand.nand_evter_intr_en);
+ ifc_out32(IFC_NAND_EVTER_INTR_OPCIR_EN |
+ IFC_NAND_EVTER_INTR_FTOERIR_EN |
+ IFC_NAND_EVTER_INTR_WPERIR_EN,
+ &ifc->ifc_nand.nand_evter_intr_en);
priv->mtd.name = kasprintf(GFP_KERNEL, "%llx.flash", (u64)res.start);
if (!priv->mtd.name) {
ret = -ENOMEM;
diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c
index 2426db88d..f04445b99 100644
--- a/drivers/mtd/nand/mxc_nand.c
+++ b/drivers/mtd/nand/mxc_nand.c
@@ -879,7 +879,7 @@ static void copy_spare(struct mtd_info *mtd, bool bfrom)
oob_chunk_size);
/* the last chunk */
- memcpy16_toio(&s[oob_chunk_size * sparebuf_size],
+ memcpy16_toio(&s[i * sparebuf_size],
&d[i * oob_chunk_size],
host->used_oobsize - i * oob_chunk_size);
}
diff --git a/drivers/mtd/nand/nand_ids.c b/drivers/mtd/nand/nand_ids.c
index 7124400d9..a8804a3da 100644
--- a/drivers/mtd/nand/nand_ids.c
+++ b/drivers/mtd/nand/nand_ids.c
@@ -29,6 +29,10 @@ struct nand_flash_dev nand_flash_ids[] = {
* listed by full ID. We list them first so that we can easily identify
* the most specific match.
*/
+ {"TC58NVG0S3E 1G 3.3V 8-bit",
+ { .id = {0x98, 0xd1, 0x90, 0x15, 0x76, 0x14, 0x01, 0x00} },
+ SZ_2K, SZ_128, SZ_128K, 0, 8, 64, NAND_ECC_INFO(1, SZ_512),
+ 2 },
{"TC58NVG2S0F 4G 3.3V 8-bit",
{ .id = {0x98, 0xdc, 0x90, 0x26, 0x76, 0x15, 0x01, 0x08} },
SZ_4K, SZ_512, SZ_256K, 0, 8, 224, NAND_ECC_INFO(4, SZ_512) },
diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c
index 52c0c1a38..95d0cc49c 100644
--- a/drivers/mtd/nand/nandsim.c
+++ b/drivers/mtd/nand/nandsim.c
@@ -649,7 +649,8 @@ static void free_device(struct nandsim *ns)
kmem_cache_free(ns->nand_pages_slab,
ns->pages[i].byte);
}
- kmem_cache_destroy(ns->nand_pages_slab);
+ if (ns->nand_pages_slab)
+ kmem_cache_destroy(ns->nand_pages_slab);
vfree(ns->pages);
}
}
@@ -729,8 +730,7 @@ static int init_nandsim(struct mtd_info *mtd)
/* Fill the partition_info structure */
if (parts_num > ARRAY_SIZE(ns->partitions)) {
NS_ERR("too many partitions.\n");
- ret = -EINVAL;
- goto error;
+ return -EINVAL;
}
remains = ns->geom.totsz;
next_offset = 0;
@@ -739,14 +739,12 @@ static int init_nandsim(struct mtd_info *mtd)
if (!part_sz || part_sz > remains) {
NS_ERR("bad partition size.\n");
- ret = -EINVAL;
- goto error;
+ return -EINVAL;
}
ns->partitions[i].name = get_partition_name(i);
if (!ns->partitions[i].name) {
NS_ERR("unable to allocate memory.\n");
- ret = -ENOMEM;
- goto error;
+ return -ENOMEM;
}
ns->partitions[i].offset = next_offset;
ns->partitions[i].size = part_sz;
@@ -757,14 +755,12 @@ static int init_nandsim(struct mtd_info *mtd)
if (remains) {
if (parts_num + 1 > ARRAY_SIZE(ns->partitions)) {
NS_ERR("too many partitions.\n");
- ret = -EINVAL;
- goto error;
+ return -EINVAL;
}
ns->partitions[i].name = get_partition_name(i);
if (!ns->partitions[i].name) {
NS_ERR("unable to allocate memory.\n");
- ret = -ENOMEM;
- goto error;
+ return -ENOMEM;
}
ns->partitions[i].offset = next_offset;
ns->partitions[i].size = remains;
@@ -792,24 +788,18 @@ static int init_nandsim(struct mtd_info *mtd)
printk("options: %#x\n", ns->options);
if ((ret = alloc_device(ns)) != 0)
- goto error;
+ return ret;
/* Allocate / initialize the internal buffer */
ns->buf.byte = kmalloc(ns->geom.pgszoob, GFP_KERNEL);
if (!ns->buf.byte) {
NS_ERR("init_nandsim: unable to allocate %u bytes for the internal buffer\n",
ns->geom.pgszoob);
- ret = -ENOMEM;
- goto error;
+ return -ENOMEM;
}
memset(ns->buf.byte, 0xFF, ns->geom.pgszoob);
return 0;
-
-error:
- free_device(ns);
-
- return ret;
}
/*
diff --git a/drivers/mtd/nand/omap_elm.c b/drivers/mtd/nand/omap_elm.c
index 376bfe191..235ec7992 100644
--- a/drivers/mtd/nand/omap_elm.c
+++ b/drivers/mtd/nand/omap_elm.c
@@ -574,5 +574,5 @@ module_platform_driver(elm_driver);
MODULE_DESCRIPTION("ELM driver for BCH error correction");
MODULE_AUTHOR("Texas Instruments");
-MODULE_ALIAS("platform: elm");
+MODULE_ALIAS("platform:" DRIVER_NAME);
MODULE_LICENSE("GPL v2");
diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c
index 5465fa439..740983a34 100644
--- a/drivers/mtd/nand/pxa3xx_nand.c
+++ b/drivers/mtd/nand/pxa3xx_nand.c
@@ -45,10 +45,13 @@
/*
* Define a buffer size for the initial command that detects the flash device:
- * STATUS, READID and PARAM. The largest of these is the PARAM command,
- * needing 256 bytes.
+ * STATUS, READID and PARAM.
+ * ONFI param page is 256 bytes, and there are three redundant copies
+ * to be read. JEDEC param page is 512 bytes, and there are also three
+ * redundant copies to be read.
+ * Hence this buffer should be at least 512 x 3. Let's pick 2048.
*/
-#define INIT_BUFFER_SIZE 256
+#define INIT_BUFFER_SIZE 2048
/* registers and bit definitions */
#define NDCR (0x00) /* Control register */
@@ -126,6 +129,13 @@
#define EXT_CMD_TYPE_LAST_RW 1 /* Last naked read/write */
#define EXT_CMD_TYPE_MONO 0 /* Monolithic read/write */
+/*
+ * This should be large enough to read 'ONFI' and 'JEDEC'.
+ * Let's use 7 bytes, which is the maximum ID count supported
+ * by the controller (see NDCR_RD_ID_CNT_MASK).
+ */
+#define READ_ID_BYTES 7
+
/* macros for registers read/write */
#define nand_writel(info, off, val) \
writel_relaxed((val), (info)->mmio_base + (off))
@@ -173,8 +183,6 @@ struct pxa3xx_nand_host {
/* calculated from pxa3xx_nand_flash data */
unsigned int col_addr_cycles;
unsigned int row_addr_cycles;
- size_t read_id_bytes;
-
};
struct pxa3xx_nand_info {
@@ -439,8 +447,8 @@ static void pxa3xx_nand_start(struct pxa3xx_nand_info *info)
ndcr |= NDCR_ND_RUN;
/* clear status bits and run */
- nand_writel(info, NDCR, 0);
nand_writel(info, NDSR, NDSR_MASK);
+ nand_writel(info, NDCR, 0);
nand_writel(info, NDCR, ndcr);
}
@@ -675,8 +683,14 @@ static irqreturn_t pxa3xx_nand_irq(int irq, void *devid)
is_ready = 1;
}
+ /*
+ * Clear all status bit before issuing the next command, which
+ * can and will alter the status bits and will deserve a new
+ * interrupt on its own. This lets the controller exit the IRQ
+ */
+ nand_writel(info, NDSR, status);
+
if (status & NDSR_WRCMDREQ) {
- nand_writel(info, NDSR, NDSR_WRCMDREQ);
status &= ~NDSR_WRCMDREQ;
info->state = STATE_CMD_HANDLE;
@@ -697,8 +711,6 @@ static irqreturn_t pxa3xx_nand_irq(int irq, void *devid)
nand_writel(info, NDCB0, info->ndcb3);
}
- /* clear NDSR to let the controller exit the IRQ */
- nand_writel(info, NDSR, status);
if (is_completed)
complete(&info->cmd_complete);
if (is_ready)
@@ -899,18 +911,18 @@ static int prepare_set_command(struct pxa3xx_nand_info *info, int command,
break;
case NAND_CMD_PARAM:
- info->buf_count = 256;
+ info->buf_count = INIT_BUFFER_SIZE;
info->ndcb0 |= NDCB0_CMD_TYPE(0)
| NDCB0_ADDR_CYC(1)
| NDCB0_LEN_OVRD
| command;
info->ndcb1 = (column & 0xFF);
- info->ndcb3 = 256;
- info->data_size = 256;
+ info->ndcb3 = INIT_BUFFER_SIZE;
+ info->data_size = INIT_BUFFER_SIZE;
break;
case NAND_CMD_READID:
- info->buf_count = host->read_id_bytes;
+ info->buf_count = READ_ID_BYTES;
info->ndcb0 |= NDCB0_CMD_TYPE(3)
| NDCB0_ADDR_CYC(1)
| command;
@@ -1247,9 +1259,6 @@ static int pxa3xx_nand_config_flash(struct pxa3xx_nand_info *info,
return -EINVAL;
}
- /* calculate flash information */
- host->read_id_bytes = (f->page_size == 2048) ? 4 : 2;
-
/* calculate addressing information */
host->col_addr_cycles = (f->page_size == 2048) ? 2 : 1;
@@ -1265,7 +1274,7 @@ static int pxa3xx_nand_config_flash(struct pxa3xx_nand_info *info,
ndcr |= (f->flash_width == 16) ? NDCR_DWIDTH_M : 0;
ndcr |= (f->dfc_width == 16) ? NDCR_DWIDTH_C : 0;
- ndcr |= NDCR_RD_ID_CNT(host->read_id_bytes);
+ ndcr |= NDCR_RD_ID_CNT(READ_ID_BYTES);
ndcr |= NDCR_SPARE_EN; /* enable spare by default */
info->reg_ndcr = ndcr;
@@ -1276,23 +1285,10 @@ static int pxa3xx_nand_config_flash(struct pxa3xx_nand_info *info,
static int pxa3xx_nand_detect_config(struct pxa3xx_nand_info *info)
{
- /*
- * We set 0 by hard coding here, for we don't support keep_config
- * when there is more than one chip attached to the controller
- */
- struct pxa3xx_nand_host *host = info->host[0];
uint32_t ndcr = nand_readl(info, NDCR);
- if (ndcr & NDCR_PAGE_SZ) {
- /* Controller's FIFO size */
- info->chunk_size = 2048;
- host->read_id_bytes = 4;
- } else {
- info->chunk_size = 512;
- host->read_id_bytes = 2;
- }
-
/* Set an initial chunk size */
+ info->chunk_size = ndcr & NDCR_PAGE_SZ ? 2048 : 512;
info->reg_ndcr = ndcr & ~NDCR_INT_MASK;
info->ndtr0cs0 = nand_readl(info, NDTR0CS0);
info->ndtr1cs0 = nand_readl(info, NDTR1CS0);
diff --git a/drivers/mtd/nand/r852.c b/drivers/mtd/nand/r852.c
index 77e96d2df..cc6bac537 100644
--- a/drivers/mtd/nand/r852.c
+++ b/drivers/mtd/nand/r852.c
@@ -466,7 +466,7 @@ static int r852_ecc_calculate(struct mtd_info *mtd, const uint8_t *dat,
static int r852_ecc_correct(struct mtd_info *mtd, uint8_t *dat,
uint8_t *read_ecc, uint8_t *calc_ecc)
{
- uint16_t ecc_reg;
+ uint32_t ecc_reg;
uint8_t ecc_status, err_byte;
int i, error = 0;
diff --git a/drivers/mtd/nand/sunxi_nand.c b/drivers/mtd/nand/sunxi_nand.c
index 499b8e433..e7d333c16 100644
--- a/drivers/mtd/nand/sunxi_nand.c
+++ b/drivers/mtd/nand/sunxi_nand.c
@@ -99,6 +99,15 @@
NFC_CMD_INT_ENABLE | \
NFC_DMA_INT_ENABLE)
+/* define bit use in NFC_TIMING_CTL */
+#define NFC_TIMING_CTL_EDO BIT(8)
+
+/* define NFC_TIMING_CFG register layout */
+#define NFC_TIMING_CFG(tWB, tADL, tWHR, tRHW, tCAD) \
+ (((tWB) & 0x3) | (((tADL) & 0x3) << 2) | \
+ (((tWHR) & 0x3) << 4) | (((tRHW) & 0x3) << 6) | \
+ (((tCAD) & 0x7) << 8))
+
/* define bit use in NFC_CMD */
#define NFC_CMD_LOW_BYTE GENMASK(7, 0)
#define NFC_CMD_HIGH_BYTE GENMASK(15, 8)
@@ -212,6 +221,7 @@ struct sunxi_nand_hw_ecc {
* @nand: base NAND chip structure
* @mtd: base MTD structure
* @clk_rate: clk_rate required for this NAND chip
+ * @timing_cfg TIMING_CFG register value for this NAND chip
* @selected: current active CS
* @nsels: number of CS lines required by the NAND chip
* @sels: array of CS lines descriptions
@@ -221,6 +231,8 @@ struct sunxi_nand_chip {
struct nand_chip nand;
struct mtd_info mtd;
unsigned long clk_rate;
+ u32 timing_cfg;
+ u32 timing_ctl;
int selected;
int nsels;
struct sunxi_nand_chip_sel sels[0];
@@ -407,6 +419,8 @@ static void sunxi_nfc_select_chip(struct mtd_info *mtd, int chip)
}
}
+ writel(sunxi_nand->timing_ctl, nfc->regs + NFC_REG_TIMING_CTL);
+ writel(sunxi_nand->timing_cfg, nfc->regs + NFC_REG_TIMING_CFG);
writel(ctl, nfc->regs + NFC_REG_CTL);
sunxi_nand->selected = chip;
@@ -799,10 +813,33 @@ static int sunxi_nfc_hw_syndrome_ecc_write_page(struct mtd_info *mtd,
return 0;
}
+static const s32 tWB_lut[] = {6, 12, 16, 20};
+static const s32 tRHW_lut[] = {4, 8, 12, 20};
+
+static int _sunxi_nand_lookup_timing(const s32 *lut, int lut_size, u32 duration,
+ u32 clk_period)
+{
+ u32 clk_cycles = DIV_ROUND_UP(duration, clk_period);
+ int i;
+
+ for (i = 0; i < lut_size; i++) {
+ if (clk_cycles <= lut[i])
+ return i;
+ }
+
+ /* Doesn't fit */
+ return -EINVAL;
+}
+
+#define sunxi_nand_lookup_timing(l, p, c) \
+ _sunxi_nand_lookup_timing(l, ARRAY_SIZE(l), p, c)
+
static int sunxi_nand_chip_set_timings(struct sunxi_nand_chip *chip,
const struct nand_sdr_timings *timings)
{
+ struct sunxi_nfc *nfc = to_sunxi_nfc(chip->nand.controller);
u32 min_clk_period = 0;
+ s32 tWB, tADL, tWHR, tRHW, tCAD;
/* T1 <=> tCLS */
if (timings->tCLS_min > min_clk_period)
@@ -864,6 +901,48 @@ static int sunxi_nand_chip_set_timings(struct sunxi_nand_chip *chip,
if (timings->tWC_min > (min_clk_period * 2))
min_clk_period = DIV_ROUND_UP(timings->tWC_min, 2);
+ /* T16 - T19 + tCAD */
+ tWB = sunxi_nand_lookup_timing(tWB_lut, timings->tWB_max,
+ min_clk_period);
+ if (tWB < 0) {
+ dev_err(nfc->dev, "unsupported tWB\n");
+ return tWB;
+ }
+
+ tADL = DIV_ROUND_UP(timings->tADL_min, min_clk_period) >> 3;
+ if (tADL > 3) {
+ dev_err(nfc->dev, "unsupported tADL\n");
+ return -EINVAL;
+ }
+
+ tWHR = DIV_ROUND_UP(timings->tWHR_min, min_clk_period) >> 3;
+ if (tWHR > 3) {
+ dev_err(nfc->dev, "unsupported tWHR\n");
+ return -EINVAL;
+ }
+
+ tRHW = sunxi_nand_lookup_timing(tRHW_lut, timings->tRHW_min,
+ min_clk_period);
+ if (tRHW < 0) {
+ dev_err(nfc->dev, "unsupported tRHW\n");
+ return tRHW;
+ }
+
+ /*
+ * TODO: according to ONFI specs this value only applies for DDR NAND,
+ * but Allwinner seems to set this to 0x7. Mimic them for now.
+ */
+ tCAD = 0x7;
+
+ /* TODO: A83 has some more bits for CDQSS, CS, CLHZ, CCS, WC */
+ chip->timing_cfg = NFC_TIMING_CFG(tWB, tADL, tWHR, tRHW, tCAD);
+
+ /*
+ * ONFI specification 3.1, paragraph 4.15.2 dictates that EDO data
+ * output cycle timings shall be used if the host drives tRC less than
+ * 30 ns.
+ */
+ chip->timing_ctl = (timings->tRC_min < 30000) ? NFC_TIMING_CTL_EDO : 0;
/* Convert min_clk_period from picoseconds to nanoseconds */
min_clk_period = DIV_ROUND_UP(min_clk_period, 1000);
@@ -876,8 +955,6 @@ static int sunxi_nand_chip_set_timings(struct sunxi_nand_chip *chip,
*/
chip->clk_rate = (2 * NSEC_PER_SEC) / min_clk_period;
- /* TODO: configure T16-T19 */
-
return 0;
}
@@ -1369,13 +1446,6 @@ static int sunxi_nfc_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, nfc);
- /*
- * TODO: replace these magic values with proper flags as soon as we
- * know what they are encoding.
- */
- writel(0x100, nfc->regs + NFC_REG_TIMING_CTL);
- writel(0x7ff, nfc->regs + NFC_REG_TIMING_CFG);
-
ret = sunxi_nand_chips_init(dev, nfc);
if (ret) {
dev_err(dev, "failed to init nand chips\n");
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-17 13:17:41 +0000