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@@ -29,7 +29,7 @@
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MODULE_LICENSE("GPL");
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-/* We define a module parameter that allows the user to override
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+/* We define a module parameter that allows the user to override
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* the hardware and decide what timing mode should be used.
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*/
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#define NAND_DEFAULT_TIMINGS -1
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@@ -54,13 +54,13 @@ MODULE_PARM_DESC(onfi_timing_mode, "Overrides default ONFI setting. -1 indicates
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INTR_STATUS0__RST_COMP | \
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INTR_STATUS0__ERASE_COMP)
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-/* indicates whether or not the internal value for the flash bank is
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+/* indicates whether or not the internal value for the flash bank is
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valid or not */
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-#define CHIP_SELECT_INVALID -1
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+#define CHIP_SELECT_INVALID -1
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#define SUPPORT_8BITECC 1
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-/* This macro divides two integers and rounds fractional values up
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+/* This macro divides two integers and rounds fractional values up
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* to the nearest integer value. */
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#define CEIL_DIV(X, Y) (((X)%(Y)) ? ((X)/(Y)+1) : ((X)/(Y)))
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@@ -83,7 +83,7 @@ MODULE_PARM_DESC(onfi_timing_mode, "Overrides default ONFI setting. -1 indicates
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#define ADDR_CYCLE 1
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#define STATUS_CYCLE 2
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-/* this is a helper macro that allows us to
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+/* this is a helper macro that allows us to
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* format the bank into the proper bits for the controller */
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#define BANK(x) ((x) << 24)
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@@ -95,28 +95,28 @@ static const struct pci_device_id denali_pci_ids[] = {
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};
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-/* these are static lookup tables that give us easy access to
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- registers in the NAND controller.
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+/* these are static lookup tables that give us easy access to
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+ registers in the NAND controller.
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*/
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-static const uint32_t intr_status_addresses[4] = {INTR_STATUS0,
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- INTR_STATUS1,
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- INTR_STATUS2,
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+static const uint32_t intr_status_addresses[4] = {INTR_STATUS0,
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+ INTR_STATUS1,
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+ INTR_STATUS2,
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INTR_STATUS3};
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static const uint32_t device_reset_banks[4] = {DEVICE_RESET__BANK0,
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- DEVICE_RESET__BANK1,
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- DEVICE_RESET__BANK2,
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- DEVICE_RESET__BANK3};
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+ DEVICE_RESET__BANK1,
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+ DEVICE_RESET__BANK2,
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+ DEVICE_RESET__BANK3};
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static const uint32_t operation_timeout[4] = {INTR_STATUS0__TIME_OUT,
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- INTR_STATUS1__TIME_OUT,
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- INTR_STATUS2__TIME_OUT,
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- INTR_STATUS3__TIME_OUT};
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+ INTR_STATUS1__TIME_OUT,
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+ INTR_STATUS2__TIME_OUT,
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+ INTR_STATUS3__TIME_OUT};
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static const uint32_t reset_complete[4] = {INTR_STATUS0__RST_COMP,
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- INTR_STATUS1__RST_COMP,
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- INTR_STATUS2__RST_COMP,
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- INTR_STATUS3__RST_COMP};
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+ INTR_STATUS1__RST_COMP,
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+ INTR_STATUS2__RST_COMP,
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+ INTR_STATUS3__RST_COMP};
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/* specifies the debug level of the driver */
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static int nand_debug_level = 0;
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@@ -131,21 +131,21 @@ static uint32_t read_interrupt_status(struct denali_nand_info *denali);
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/* This is a wrapper for writing to the denali registers.
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* this allows us to create debug information so we can
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- * observe how the driver is programming the device.
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+ * observe how the driver is programming the device.
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* it uses standard linux convention for (val, addr) */
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static void denali_write32(uint32_t value, void *addr)
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{
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- iowrite32(value, addr);
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+ iowrite32(value, addr);
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#if DEBUG_DENALI
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printk(KERN_ERR "wrote: 0x%x -> 0x%x\n", value, (uint32_t)((uint32_t)addr & 0x1fff));
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#endif
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-}
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+}
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-/* Certain operations for the denali NAND controller use an indexed mode to read/write
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- data. The operation is performed by writing the address value of the command to
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- the device memory followed by the data. This function abstracts this common
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- operation.
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+/* Certain operations for the denali NAND controller use an indexed mode to read/write
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+ data. The operation is performed by writing the address value of the command to
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+ the device memory followed by the data. This function abstracts this common
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+ operation.
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*/
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static void index_addr(struct denali_nand_info *denali, uint32_t address, uint32_t data)
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{
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@@ -161,7 +161,7 @@ static void index_addr_read_data(struct denali_nand_info *denali,
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*pdata = ioread32(denali->flash_mem + 0x10);
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}
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-/* We need to buffer some data for some of the NAND core routines.
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+/* We need to buffer some data for some of the NAND core routines.
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* The operations manage buffering that data. */
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static void reset_buf(struct denali_nand_info *denali)
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{
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@@ -183,7 +183,7 @@ static void read_status(struct denali_nand_info *denali)
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reset_buf(denali);
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/* initiate a device status read */
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- cmd = MODE_11 | BANK(denali->flash_bank);
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+ cmd = MODE_11 | BANK(denali->flash_bank);
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index_addr(denali, cmd | COMMAND_CYCLE, 0x70);
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denali_write32(cmd | STATUS_CYCLE, denali->flash_mem);
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@@ -199,7 +199,7 @@ static void read_status(struct denali_nand_info *denali)
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static void reset_bank(struct denali_nand_info *denali)
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{
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uint32_t irq_status = 0;
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- uint32_t irq_mask = reset_complete[denali->flash_bank] |
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+ uint32_t irq_mask = reset_complete[denali->flash_bank] |
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operation_timeout[denali->flash_bank];
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int bank = 0;
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@@ -209,7 +209,7 @@ static void reset_bank(struct denali_nand_info *denali)
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denali_write32(bank, denali->flash_reg + DEVICE_RESET);
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irq_status = wait_for_irq(denali, irq_mask);
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-
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+
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if (irq_status & operation_timeout[denali->flash_bank])
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{
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printk(KERN_ERR "reset bank failed.\n");
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@@ -610,7 +610,7 @@ static void get_hynix_nand_para(struct denali_nand_info *denali)
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}
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/* determines how many NAND chips are connected to the controller. Note for
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- Intel CE4100 devices we don't support more than one device.
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+ Intel CE4100 devices we don't support more than one device.
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*/
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static void find_valid_banks(struct denali_nand_info *denali)
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{
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@@ -641,8 +641,8 @@ static void find_valid_banks(struct denali_nand_info *denali)
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{
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/* Platform limitations of the CE4100 device limit
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* users to a single chip solution for NAND.
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- * Multichip support is not enabled.
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- */
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+ * Multichip support is not enabled.
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+ */
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if (denali->total_used_banks != 1)
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{
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printk(KERN_ERR "Sorry, Intel CE4100 only supports "
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@@ -885,7 +885,7 @@ static uint16_t NAND_Read_Device_ID(struct denali_nand_info *denali)
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dump_device_info(denali);
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/* If the user specified to override the default timings
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- * with a specific ONFI mode, we apply those changes here.
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+ * with a specific ONFI mode, we apply those changes here.
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*/
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if (onfi_timing_mode != NAND_DEFAULT_TIMINGS)
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{
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@@ -912,7 +912,7 @@ static void NAND_LLD_Enable_Disable_Interrupts(struct denali_nand_info *denali,
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*/
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static inline bool is_flash_bank_valid(int flash_bank)
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{
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- return (flash_bank >= 0 && flash_bank < 4);
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+ return (flash_bank >= 0 && flash_bank < 4);
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}
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static void denali_irq_init(struct denali_nand_info *denali)
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@@ -948,7 +948,7 @@ static void denali_irq_enable(struct denali_nand_info *denali, uint32_t int_mask
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}
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/* This function only returns when an interrupt that this driver cares about
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- * occurs. This is to reduce the overhead of servicing interrupts
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+ * occurs. This is to reduce the overhead of servicing interrupts
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*/
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static inline uint32_t denali_irq_detected(struct denali_nand_info *denali)
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{
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@@ -1003,9 +1003,9 @@ static void print_irq_log(struct denali_nand_info *denali)
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}
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#endif
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-/* This is the interrupt service routine. It handles all interrupts
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- * sent to this device. Note that on CE4100, this is a shared
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- * interrupt.
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+/* This is the interrupt service routine. It handles all interrupts
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+ * sent to this device. Note that on CE4100, this is a shared
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+ * interrupt.
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*/
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static irqreturn_t denali_isr(int irq, void *dev_id)
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{
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@@ -1015,12 +1015,12 @@ static irqreturn_t denali_isr(int irq, void *dev_id)
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spin_lock(&denali->irq_lock);
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- /* check to see if a valid NAND chip has
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- * been selected.
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+ /* check to see if a valid NAND chip has
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+ * been selected.
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*/
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if (is_flash_bank_valid(denali->flash_bank))
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{
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- /* check to see if controller generated
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+ /* check to see if controller generated
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* the interrupt, since this is a shared interrupt */
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if ((irq_status = denali_irq_detected(denali)) != 0)
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{
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@@ -1078,10 +1078,10 @@ static uint32_t wait_for_irq(struct denali_nand_info *denali, uint32_t irq_mask)
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/* our interrupt was detected */
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break;
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}
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- else
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+ else
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{
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- /* these are not the interrupts you are looking for -
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- need to wait again */
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+ /* these are not the interrupts you are looking for -
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+ * need to wait again */
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spin_unlock_irq(&denali->irq_lock);
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#if DEBUG_DENALI
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print_irq_log(denali);
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@@ -1095,20 +1095,20 @@ static uint32_t wait_for_irq(struct denali_nand_info *denali, uint32_t irq_mask)
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if (comp_res == 0)
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{
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/* timeout */
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- printk(KERN_ERR "timeout occurred, status = 0x%x, mask = 0x%x\n",
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- intr_status, irq_mask);
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+ printk(KERN_ERR "timeout occurred, status = 0x%x, mask = 0x%x\n",
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+ intr_status, irq_mask);
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intr_status = 0;
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}
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return intr_status;
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}
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-/* This helper function setups the registers for ECC and whether or not
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+/* This helper function setups the registers for ECC and whether or not
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the spare area will be transfered. */
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-static void setup_ecc_for_xfer(struct denali_nand_info *denali, bool ecc_en,
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+static void setup_ecc_for_xfer(struct denali_nand_info *denali, bool ecc_en,
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bool transfer_spare)
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{
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- int ecc_en_flag = 0, transfer_spare_flag = 0;
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+ int ecc_en_flag = 0, transfer_spare_flag = 0;
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/* set ECC, transfer spare bits if needed */
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ecc_en_flag = ecc_en ? ECC_ENABLE__FLAG : 0;
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@@ -1119,15 +1119,15 @@ static void setup_ecc_for_xfer(struct denali_nand_info *denali, bool ecc_en,
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denali_write32(transfer_spare_flag, denali->flash_reg + TRANSFER_SPARE_REG);
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}
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-/* sends a pipeline command operation to the controller. See the Denali NAND
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- controller's user guide for more information (section 4.2.3.6).
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+/* sends a pipeline command operation to the controller. See the Denali NAND
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+ controller's user guide for more information (section 4.2.3.6).
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*/
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-static int denali_send_pipeline_cmd(struct denali_nand_info *denali, bool ecc_en,
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- bool transfer_spare, int access_type,
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+static int denali_send_pipeline_cmd(struct denali_nand_info *denali, bool ecc_en,
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+ bool transfer_spare, int access_type,
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int op)
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{
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int status = PASS;
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- uint32_t addr = 0x0, cmd = 0x0, page_count = 1, irq_status = 0,
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+ uint32_t addr = 0x0, cmd = 0x0, page_count = 1, irq_status = 0,
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irq_mask = 0;
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if (op == DENALI_READ) irq_mask = INTR_STATUS0__LOAD_COMP;
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@@ -1145,32 +1145,32 @@ static int denali_send_pipeline_cmd(struct denali_nand_info *denali, bool ecc_en
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/* clear interrupts */
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- clear_interrupts(denali);
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+ clear_interrupts(denali);
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addr = BANK(denali->flash_bank) | denali->page;
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if (op == DENALI_WRITE && access_type != SPARE_ACCESS)
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{
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- cmd = MODE_01 | addr;
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+ cmd = MODE_01 | addr;
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denali_write32(cmd, denali->flash_mem);
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}
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else if (op == DENALI_WRITE && access_type == SPARE_ACCESS)
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{
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/* read spare area */
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- cmd = MODE_10 | addr;
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+ cmd = MODE_10 | addr;
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index_addr(denali, (uint32_t)cmd, access_type);
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- cmd = MODE_01 | addr;
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+ cmd = MODE_01 | addr;
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denali_write32(cmd, denali->flash_mem);
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}
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else if (op == DENALI_READ)
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{
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/* setup page read request for access type */
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- cmd = MODE_10 | addr;
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+ cmd = MODE_10 | addr;
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index_addr(denali, (uint32_t)cmd, access_type);
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/* page 33 of the NAND controller spec indicates we should not
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- use the pipeline commands in Spare area only mode. So we
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+ use the pipeline commands in Spare area only mode. So we
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don't.
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*/
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if (access_type == SPARE_ACCESS)
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@@ -1181,8 +1181,8 @@ static int denali_send_pipeline_cmd(struct denali_nand_info *denali, bool ecc_en
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else
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{
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index_addr(denali, (uint32_t)cmd, 0x2000 | op | page_count);
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-
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- /* wait for command to be accepted
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+
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+ /* wait for command to be accepted
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* can always use status0 bit as the mask is identical for each
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* bank. */
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irq_status = wait_for_irq(denali, irq_mask);
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@@ -1204,13 +1204,13 @@ static int denali_send_pipeline_cmd(struct denali_nand_info *denali, bool ecc_en
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}
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/* helper function that simply writes a buffer to the flash */
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-static int write_data_to_flash_mem(struct denali_nand_info *denali, const uint8_t *buf,
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- int len)
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+static int write_data_to_flash_mem(struct denali_nand_info *denali, const uint8_t *buf,
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+ int len)
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{
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uint32_t i = 0, *buf32;
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- /* verify that the len is a multiple of 4. see comment in
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- * read_data_from_flash_mem() */
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+ /* verify that the len is a multiple of 4. see comment in
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+ * read_data_from_flash_mem() */
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BUG_ON((len % 4) != 0);
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/* write the data to the flash memory */
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@@ -1219,21 +1219,20 @@ static int write_data_to_flash_mem(struct denali_nand_info *denali, const uint8_
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{
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denali_write32(*buf32++, denali->flash_mem + 0x10);
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}
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- return i*4; /* intent is to return the number of bytes read */
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+ return i*4; /* intent is to return the number of bytes read */
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}
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/* helper function that simply reads a buffer from the flash */
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-static int read_data_from_flash_mem(struct denali_nand_info *denali, uint8_t *buf,
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+static int read_data_from_flash_mem(struct denali_nand_info *denali, uint8_t *buf,
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int len)
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{
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uint32_t i = 0, *buf32;
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/* we assume that len will be a multiple of 4, if not
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* it would be nice to know about it ASAP rather than
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- * have random failures...
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- *
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- * This assumption is based on the fact that this
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- * function is designed to be used to read flash pages,
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+ * have random failures...
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+ * This assumption is based on the fact that this
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+ * function is designed to be used to read flash pages,
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* which are typically multiples of 4...
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*/
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@@ -1245,7 +1244,7 @@ static int read_data_from_flash_mem(struct denali_nand_info *denali, uint8_t *bu
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{
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*buf32++ = ioread32(denali->flash_mem + 0x10);
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|
}
|
|
|
- return i*4; /* intent is to return the number of bytes read */
|
|
|
+ return i*4; /* intent is to return the number of bytes read */
|
|
|
}
|
|
|
|
|
|
/* writes OOB data to the device */
|
|
@@ -1253,14 +1252,14 @@ static int write_oob_data(struct mtd_info *mtd, uint8_t *buf, int page)
|
|
|
{
|
|
|
struct denali_nand_info *denali = mtd_to_denali(mtd);
|
|
|
uint32_t irq_status = 0;
|
|
|
- uint32_t irq_mask = INTR_STATUS0__PROGRAM_COMP |
|
|
|
+ uint32_t irq_mask = INTR_STATUS0__PROGRAM_COMP |
|
|
|
INTR_STATUS0__PROGRAM_FAIL;
|
|
|
int status = 0;
|
|
|
|
|
|
denali->page = page;
|
|
|
|
|
|
- if (denali_send_pipeline_cmd(denali, false, false, SPARE_ACCESS,
|
|
|
- DENALI_WRITE) == PASS)
|
|
|
+ if (denali_send_pipeline_cmd(denali, false, false, SPARE_ACCESS,
|
|
|
+ DENALI_WRITE) == PASS)
|
|
|
{
|
|
|
write_data_to_flash_mem(denali, buf, mtd->oobsize);
|
|
|
|
|
@@ -1271,7 +1270,7 @@ static int write_oob_data(struct mtd_info *mtd, uint8_t *buf, int page)
|
|
|
spin_unlock_irq(&denali->irq_lock);
|
|
|
#endif
|
|
|
|
|
|
-
|
|
|
+
|
|
|
/* wait for operation to complete */
|
|
|
irq_status = wait_for_irq(denali, irq_mask);
|
|
|
|
|
@@ -1281,10 +1280,10 @@ static int write_oob_data(struct mtd_info *mtd, uint8_t *buf, int page)
|
|
|
status = -EIO;
|
|
|
}
|
|
|
}
|
|
|
- else
|
|
|
- {
|
|
|
+ else
|
|
|
+ {
|
|
|
printk(KERN_ERR "unable to send pipeline command\n");
|
|
|
- status = -EIO;
|
|
|
+ status = -EIO;
|
|
|
}
|
|
|
return status;
|
|
|
}
|
|
@@ -1300,12 +1299,12 @@ static void read_oob_data(struct mtd_info *mtd, uint8_t *buf, int page)
|
|
|
#if DEBUG_DENALI
|
|
|
printk("read_oob %d\n", page);
|
|
|
#endif
|
|
|
- if (denali_send_pipeline_cmd(denali, false, true, SPARE_ACCESS,
|
|
|
- DENALI_READ) == PASS)
|
|
|
+ if (denali_send_pipeline_cmd(denali, false, true, SPARE_ACCESS,
|
|
|
+ DENALI_READ) == PASS)
|
|
|
{
|
|
|
- read_data_from_flash_mem(denali, buf, mtd->oobsize);
|
|
|
+ read_data_from_flash_mem(denali, buf, mtd->oobsize);
|
|
|
|
|
|
- /* wait for command to be accepted
|
|
|
+ /* wait for command to be accepted
|
|
|
* can always use status0 bit as the mask is identical for each
|
|
|
* bank. */
|
|
|
irq_status = wait_for_irq(denali, irq_mask);
|
|
@@ -1319,10 +1318,10 @@ static void read_oob_data(struct mtd_info *mtd, uint8_t *buf, int page)
|
|
|
* instability with the controller if you do a block erase
|
|
|
* and the last transaction was a SPARE_ACCESS. Block erase
|
|
|
* is reliable (according to the MTD test infrastructure)
|
|
|
- * if you are in MAIN_ACCESS.
|
|
|
+ * if you are in MAIN_ACCESS.
|
|
|
*/
|
|
|
addr = BANK(denali->flash_bank) | denali->page;
|
|
|
- cmd = MODE_10 | addr;
|
|
|
+ cmd = MODE_10 | addr;
|
|
|
index_addr(denali, (uint32_t)cmd, MAIN_ACCESS);
|
|
|
|
|
|
#if DEBUG_DENALI
|
|
@@ -1334,14 +1333,14 @@ static void read_oob_data(struct mtd_info *mtd, uint8_t *buf, int page)
|
|
|
}
|
|
|
}
|
|
|
|
|
|
-/* this function examines buffers to see if they contain data that
|
|
|
+/* this function examines buffers to see if they contain data that
|
|
|
* indicate that the buffer is part of an erased region of flash.
|
|
|
*/
|
|
|
bool is_erased(uint8_t *buf, int len)
|
|
|
{
|
|
|
int i = 0;
|
|
|
for (i = 0; i < len; i++)
|
|
|
- {
|
|
|
+ {
|
|
|
if (buf[i] != 0xFF)
|
|
|
{
|
|
|
return false;
|
|
@@ -1358,7 +1357,7 @@ bool is_erased(uint8_t *buf, int len)
|
|
|
#define ECC_ERR_DEVICE(x) ((x) & ERR_CORRECTION_INFO__DEVICE_NR >> 8)
|
|
|
#define ECC_LAST_ERR(x) ((x) & ERR_CORRECTION_INFO__LAST_ERR_INFO)
|
|
|
|
|
|
-static bool handle_ecc(struct denali_nand_info *denali, uint8_t *buf,
|
|
|
+static bool handle_ecc(struct denali_nand_info *denali, uint8_t *buf,
|
|
|
uint8_t *oobbuf, uint32_t irq_status)
|
|
|
{
|
|
|
bool check_erased_page = false;
|
|
@@ -1370,27 +1369,27 @@ static bool handle_ecc(struct denali_nand_info *denali, uint8_t *buf,
|
|
|
uint32_t err_byte = 0, err_sector = 0, err_device = 0;
|
|
|
uint32_t err_correction_value = 0;
|
|
|
|
|
|
- do
|
|
|
+ do
|
|
|
{
|
|
|
- err_address = ioread32(denali->flash_reg +
|
|
|
+ err_address = ioread32(denali->flash_reg +
|
|
|
ECC_ERROR_ADDRESS);
|
|
|
err_sector = ECC_SECTOR(err_address);
|
|
|
err_byte = ECC_BYTE(err_address);
|
|
|
|
|
|
|
|
|
- err_correction_info = ioread32(denali->flash_reg +
|
|
|
+ err_correction_info = ioread32(denali->flash_reg +
|
|
|
ERR_CORRECTION_INFO);
|
|
|
- err_correction_value =
|
|
|
+ err_correction_value =
|
|
|
ECC_CORRECTION_VALUE(err_correction_info);
|
|
|
err_device = ECC_ERR_DEVICE(err_correction_info);
|
|
|
|
|
|
if (ECC_ERROR_CORRECTABLE(err_correction_info))
|
|
|
{
|
|
|
/* offset in our buffer is computed as:
|
|
|
- sector number * sector size + offset in
|
|
|
+ sector number * sector size + offset in
|
|
|
sector
|
|
|
*/
|
|
|
- int offset = err_sector * ECC_SECTOR_SIZE +
|
|
|
+ int offset = err_sector * ECC_SECTOR_SIZE +
|
|
|
err_byte;
|
|
|
if (offset < denali->mtd.writesize)
|
|
|
{
|
|
@@ -1407,15 +1406,15 @@ static bool handle_ecc(struct denali_nand_info *denali, uint8_t *buf,
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
- /* if the error is not correctable, need to
|
|
|
+ /* if the error is not correctable, need to
|
|
|
* look at the page to see if it is an erased page.
|
|
|
- * if so, then it's not a real ECC error */
|
|
|
+ * if so, then it's not a real ECC error */
|
|
|
check_erased_page = true;
|
|
|
}
|
|
|
|
|
|
-#if DEBUG_DENALI
|
|
|
+#if DEBUG_DENALI
|
|
|
printk("Detected ECC error in page %d: err_addr = 0x%08x,"
|
|
|
- " info to fix is 0x%08x\n", denali->page, err_address,
|
|
|
+ " info to fix is 0x%08x\n", denali->page, err_address,
|
|
|
err_correction_info);
|
|
|
#endif
|
|
|
} while (!ECC_LAST_ERR(err_correction_info));
|
|
@@ -1458,9 +1457,9 @@ static void denali_setup_dma(struct denali_nand_info *denali, int op)
|
|
|
index_addr(denali, mode | 0x14000, 0x2400);
|
|
|
}
|
|
|
|
|
|
-/* writes a page. user specifies type, and this function handles the
|
|
|
+/* writes a page. user specifies type, and this function handles the
|
|
|
configuration details. */
|
|
|
-static void write_page(struct mtd_info *mtd, struct nand_chip *chip,
|
|
|
+static void write_page(struct mtd_info *mtd, struct nand_chip *chip,
|
|
|
const uint8_t *buf, bool raw_xfer)
|
|
|
{
|
|
|
struct denali_nand_info *denali = mtd_to_denali(mtd);
|
|
@@ -1470,7 +1469,7 @@ static void write_page(struct mtd_info *mtd, struct nand_chip *chip,
|
|
|
size_t size = denali->mtd.writesize + denali->mtd.oobsize;
|
|
|
|
|
|
uint32_t irq_status = 0;
|
|
|
- uint32_t irq_mask = INTR_STATUS0__DMA_CMD_COMP |
|
|
|
+ uint32_t irq_mask = INTR_STATUS0__DMA_CMD_COMP |
|
|
|
INTR_STATUS0__PROGRAM_FAIL;
|
|
|
|
|
|
/* if it is a raw xfer, we want to disable ecc, and send
|
|
@@ -1486,15 +1485,15 @@ static void write_page(struct mtd_info *mtd, struct nand_chip *chip,
|
|
|
if (raw_xfer)
|
|
|
{
|
|
|
/* transfer the data to the spare area */
|
|
|
- memcpy(denali->buf.buf + mtd->writesize,
|
|
|
- chip->oob_poi,
|
|
|
- mtd->oobsize);
|
|
|
+ memcpy(denali->buf.buf + mtd->writesize,
|
|
|
+ chip->oob_poi,
|
|
|
+ mtd->oobsize);
|
|
|
}
|
|
|
|
|
|
pci_dma_sync_single_for_device(pci_dev, addr, size, PCI_DMA_TODEVICE);
|
|
|
|
|
|
clear_interrupts(denali);
|
|
|
- denali_enable_dma(denali, true);
|
|
|
+ denali_enable_dma(denali, true);
|
|
|
|
|
|
denali_setup_dma(denali, DENALI_WRITE);
|
|
|
|
|
@@ -1504,53 +1503,53 @@ static void write_page(struct mtd_info *mtd, struct nand_chip *chip,
|
|
|
if (irq_status == 0)
|
|
|
{
|
|
|
printk(KERN_ERR "timeout on write_page (type = %d)\n", raw_xfer);
|
|
|
- denali->status =
|
|
|
- (irq_status & INTR_STATUS0__PROGRAM_FAIL) ? NAND_STATUS_FAIL :
|
|
|
- PASS;
|
|
|
+ denali->status =
|
|
|
+ (irq_status & INTR_STATUS0__PROGRAM_FAIL) ? NAND_STATUS_FAIL :
|
|
|
+ PASS;
|
|
|
}
|
|
|
|
|
|
- denali_enable_dma(denali, false);
|
|
|
+ denali_enable_dma(denali, false);
|
|
|
pci_dma_sync_single_for_cpu(pci_dev, addr, size, PCI_DMA_TODEVICE);
|
|
|
}
|
|
|
|
|
|
/* NAND core entry points */
|
|
|
|
|
|
-/* this is the callback that the NAND core calls to write a page. Since
|
|
|
- writing a page with ECC or without is similar, all the work is done
|
|
|
+/* this is the callback that the NAND core calls to write a page. Since
|
|
|
+ writing a page with ECC or without is similar, all the work is done
|
|
|
by write_page above. */
|
|
|
-static void denali_write_page(struct mtd_info *mtd, struct nand_chip *chip,
|
|
|
+static void denali_write_page(struct mtd_info *mtd, struct nand_chip *chip,
|
|
|
const uint8_t *buf)
|
|
|
{
|
|
|
/* for regular page writes, we let HW handle all the ECC
|
|
|
- * data written to the device. */
|
|
|
+ * data written to the device. */
|
|
|
write_page(mtd, chip, buf, false);
|
|
|
}
|
|
|
|
|
|
-/* This is the callback that the NAND core calls to write a page without ECC.
|
|
|
+/* This is the callback that the NAND core calls to write a page without ECC.
|
|
|
raw access is similiar to ECC page writes, so all the work is done in the
|
|
|
- write_page() function above.
|
|
|
+ write_page() function above.
|
|
|
*/
|
|
|
-static void denali_write_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
|
|
|
+static void denali_write_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
|
|
|
const uint8_t *buf)
|
|
|
{
|
|
|
- /* for raw page writes, we want to disable ECC and simply write
|
|
|
+ /* for raw page writes, we want to disable ECC and simply write
|
|
|
whatever data is in the buffer. */
|
|
|
write_page(mtd, chip, buf, true);
|
|
|
}
|
|
|
|
|
|
-static int denali_write_oob(struct mtd_info *mtd, struct nand_chip *chip,
|
|
|
+static int denali_write_oob(struct mtd_info *mtd, struct nand_chip *chip,
|
|
|
int page)
|
|
|
{
|
|
|
- return write_oob_data(mtd, chip->oob_poi, page);
|
|
|
+ return write_oob_data(mtd, chip->oob_poi, page);
|
|
|
}
|
|
|
|
|
|
-static int denali_read_oob(struct mtd_info *mtd, struct nand_chip *chip,
|
|
|
+static int denali_read_oob(struct mtd_info *mtd, struct nand_chip *chip,
|
|
|
int page, int sndcmd)
|
|
|
{
|
|
|
read_oob_data(mtd, chip->oob_poi, page);
|
|
|
|
|
|
- return 0; /* notify NAND core to send command to
|
|
|
- * NAND device. */
|
|
|
+ return 0; /* notify NAND core to send command to
|
|
|
+ NAND device. */
|
|
|
}
|
|
|
|
|
|
static int denali_read_page(struct mtd_info *mtd, struct nand_chip *chip,
|
|
@@ -1563,7 +1562,7 @@ static int denali_read_page(struct mtd_info *mtd, struct nand_chip *chip,
|
|
|
size_t size = denali->mtd.writesize + denali->mtd.oobsize;
|
|
|
|
|
|
uint32_t irq_status = 0;
|
|
|
- uint32_t irq_mask = INTR_STATUS0__ECC_TRANSACTION_DONE |
|
|
|
+ uint32_t irq_mask = INTR_STATUS0__ECC_TRANSACTION_DONE |
|
|
|
INTR_STATUS0__ECC_ERR;
|
|
|
bool check_erased_page = false;
|
|
|
|
|
@@ -1581,7 +1580,7 @@ static int denali_read_page(struct mtd_info *mtd, struct nand_chip *chip,
|
|
|
pci_dma_sync_single_for_cpu(pci_dev, addr, size, PCI_DMA_FROMDEVICE);
|
|
|
|
|
|
memcpy(buf, denali->buf.buf, mtd->writesize);
|
|
|
-
|
|
|
+
|
|
|
check_erased_page = handle_ecc(denali, buf, chip->oob_poi, irq_status);
|
|
|
denali_enable_dma(denali, false);
|
|
|
|
|
@@ -1600,7 +1599,7 @@ static int denali_read_page(struct mtd_info *mtd, struct nand_chip *chip,
|
|
|
{
|
|
|
denali->mtd.ecc_stats.failed++;
|
|
|
}
|
|
|
- }
|
|
|
+ }
|
|
|
}
|
|
|
return 0;
|
|
|
}
|
|
@@ -1616,7 +1615,7 @@ static int denali_read_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
|
|
|
|
|
|
uint32_t irq_status = 0;
|
|
|
uint32_t irq_mask = INTR_STATUS0__DMA_CMD_COMP;
|
|
|
-
|
|
|
+
|
|
|
setup_ecc_for_xfer(denali, false, true);
|
|
|
denali_enable_dma(denali, true);
|
|
|
|
|
@@ -1687,21 +1686,21 @@ static void denali_erase(struct mtd_info *mtd, int page)
|
|
|
printk("erase page: %d\n", page);
|
|
|
#endif
|
|
|
/* clear interrupts */
|
|
|
- clear_interrupts(denali);
|
|
|
+ clear_interrupts(denali);
|
|
|
|
|
|
/* setup page read request for access type */
|
|
|
cmd = MODE_10 | BANK(denali->flash_bank) | page;
|
|
|
index_addr(denali, (uint32_t)cmd, 0x1);
|
|
|
|
|
|
/* wait for erase to complete or failure to occur */
|
|
|
- irq_status = wait_for_irq(denali, INTR_STATUS0__ERASE_COMP |
|
|
|
+ irq_status = wait_for_irq(denali, INTR_STATUS0__ERASE_COMP |
|
|
|
INTR_STATUS0__ERASE_FAIL);
|
|
|
|
|
|
- denali->status = (irq_status & INTR_STATUS0__ERASE_FAIL) ? NAND_STATUS_FAIL :
|
|
|
+ denali->status = (irq_status & INTR_STATUS0__ERASE_FAIL) ? NAND_STATUS_FAIL :
|
|
|
PASS;
|
|
|
}
|
|
|
|
|
|
-static void denali_cmdfunc(struct mtd_info *mtd, unsigned int cmd, int col,
|
|
|
+static void denali_cmdfunc(struct mtd_info *mtd, unsigned int cmd, int col,
|
|
|
int page)
|
|
|
{
|
|
|
struct denali_nand_info *denali = mtd_to_denali(mtd);
|
|
@@ -1710,7 +1709,7 @@ static void denali_cmdfunc(struct mtd_info *mtd, unsigned int cmd, int col,
|
|
|
printk("cmdfunc: 0x%x %d %d\n", cmd, col, page);
|
|
|
#endif
|
|
|
switch (cmd)
|
|
|
- {
|
|
|
+ {
|
|
|
case NAND_CMD_PAGEPROG:
|
|
|
break;
|
|
|
case NAND_CMD_STATUS:
|
|
@@ -1720,19 +1719,19 @@ static void denali_cmdfunc(struct mtd_info *mtd, unsigned int cmd, int col,
|
|
|
reset_buf(denali);
|
|
|
if (denali->flash_bank < denali->total_used_banks)
|
|
|
{
|
|
|
- /* write manufacturer information into nand
|
|
|
+ /* write manufacturer information into nand
|
|
|
buffer for NAND subsystem to fetch.
|
|
|
- */
|
|
|
- write_byte_to_buf(denali, denali->dev_info.wDeviceMaker);
|
|
|
- write_byte_to_buf(denali, denali->dev_info.wDeviceID);
|
|
|
- write_byte_to_buf(denali, denali->dev_info.bDeviceParam0);
|
|
|
- write_byte_to_buf(denali, denali->dev_info.bDeviceParam1);
|
|
|
- write_byte_to_buf(denali, denali->dev_info.bDeviceParam2);
|
|
|
+ */
|
|
|
+ write_byte_to_buf(denali, denali->dev_info.wDeviceMaker);
|
|
|
+ write_byte_to_buf(denali, denali->dev_info.wDeviceID);
|
|
|
+ write_byte_to_buf(denali, denali->dev_info.bDeviceParam0);
|
|
|
+ write_byte_to_buf(denali, denali->dev_info.bDeviceParam1);
|
|
|
+ write_byte_to_buf(denali, denali->dev_info.bDeviceParam2);
|
|
|
}
|
|
|
- else
|
|
|
+ else
|
|
|
{
|
|
|
int i;
|
|
|
- for (i = 0; i < 5; i++)
|
|
|
+ for (i = 0; i < 5; i++)
|
|
|
write_byte_to_buf(denali, 0xff);
|
|
|
}
|
|
|
break;
|
|
@@ -1753,7 +1752,7 @@ static void denali_cmdfunc(struct mtd_info *mtd, unsigned int cmd, int col,
|
|
|
}
|
|
|
|
|
|
/* stubs for ECC functions not used by the NAND core */
|
|
|
-static int denali_ecc_calculate(struct mtd_info *mtd, const uint8_t *data,
|
|
|
+static int denali_ecc_calculate(struct mtd_info *mtd, const uint8_t *data,
|
|
|
uint8_t *ecc_code)
|
|
|
{
|
|
|
printk(KERN_ERR "denali_ecc_calculate called unexpectedly\n");
|
|
@@ -1761,7 +1760,7 @@ static int denali_ecc_calculate(struct mtd_info *mtd, const uint8_t *data,
|
|
|
return -EIO;
|
|
|
}
|
|
|
|
|
|
-static int denali_ecc_correct(struct mtd_info *mtd, uint8_t *data,
|
|
|
+static int denali_ecc_correct(struct mtd_info *mtd, uint8_t *data,
|
|
|
uint8_t *read_ecc, uint8_t *calc_ecc)
|
|
|
{
|
|
|
printk(KERN_ERR "denali_ecc_correct called unexpectedly\n");
|
|
@@ -1797,9 +1796,9 @@ static void denali_hw_init(struct denali_nand_info *denali)
|
|
|
static struct nand_ecclayout nand_oob_slc = {
|
|
|
.eccbytes = 4,
|
|
|
.eccpos = { 0, 1, 2, 3 }, /* not used */
|
|
|
- .oobfree = {{
|
|
|
- .offset = ECC_BYTES_SLC,
|
|
|
- .length = 64 - ECC_BYTES_SLC
|
|
|
+ .oobfree = {{
|
|
|
+ .offset = ECC_BYTES_SLC,
|
|
|
+ .length = 64 - ECC_BYTES_SLC
|
|
|
}}
|
|
|
};
|
|
|
|
|
@@ -1807,9 +1806,9 @@ static struct nand_ecclayout nand_oob_slc = {
|
|
|
static struct nand_ecclayout nand_oob_mlc_14bit = {
|
|
|
.eccbytes = 14,
|
|
|
.eccpos = { 0, 1, 2, 3, 5, 6, 7, 8, 9, 10, 11, 12, 13 }, /* not used */
|
|
|
- .oobfree = {{
|
|
|
- .offset = ECC_BYTES_MLC,
|
|
|
- .length = 64 - ECC_BYTES_MLC
|
|
|
+ .oobfree = {{
|
|
|
+ .offset = ECC_BYTES_MLC,
|
|
|
+ .length = 64 - ECC_BYTES_MLC
|
|
|
}}
|
|
|
};
|
|
|
|
|
@@ -1842,12 +1841,12 @@ void denali_drv_init(struct denali_nand_info *denali)
|
|
|
denali->idx = 0;
|
|
|
|
|
|
/* setup interrupt handler */
|
|
|
- /* the completion object will be used to notify
|
|
|
+ /* the completion object will be used to notify
|
|
|
* the callee that the interrupt is done */
|
|
|
init_completion(&denali->complete);
|
|
|
|
|
|
/* the spinlock will be used to synchronize the ISR
|
|
|
- * with any element that might be access shared
|
|
|
+ * with any element that might be access shared
|
|
|
* data (interrupt status) */
|
|
|
spin_lock_init(&denali->irq_lock);
|
|
|
|
|
@@ -1880,9 +1879,9 @@ static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
|
|
|
}
|
|
|
|
|
|
if (id->driver_data == INTEL_CE4100) {
|
|
|
- /* Due to a silicon limitation, we can only support
|
|
|
- * ONFI timing mode 1 and below.
|
|
|
- */
|
|
|
+ /* Due to a silicon limitation, we can only support
|
|
|
+ * ONFI timing mode 1 and below.
|
|
|
+ */
|
|
|
if (onfi_timing_mode < -1 || onfi_timing_mode > 1)
|
|
|
{
|
|
|
printk("Intel CE4100 only supports ONFI timing mode 1 "
|
|
@@ -1918,7 +1917,7 @@ static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
|
|
|
printk(KERN_ERR "Spectra: no usable DMA configuration\n");
|
|
|
goto failed_enable;
|
|
|
}
|
|
|
- denali->buf.dma_buf = pci_map_single(dev, denali->buf.buf, DENALI_BUF_SIZE,
|
|
|
+ denali->buf.dma_buf = pci_map_single(dev, denali->buf.buf, DENALI_BUF_SIZE,
|
|
|
PCI_DMA_BIDIRECTIONAL);
|
|
|
|
|
|
if (pci_dma_mapping_error(dev, denali->buf.dma_buf))
|
|
@@ -1976,8 +1975,8 @@ static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
|
|
|
|
|
|
NAND_Read_Device_ID(denali);
|
|
|
|
|
|
- /* MTD supported page sizes vary by kernel. We validate our
|
|
|
- kernel supports the device here.
|
|
|
+ /* MTD supported page sizes vary by kernel. We validate our
|
|
|
+ * kernel supports the device here.
|
|
|
*/
|
|
|
if (denali->dev_info.wPageSize > NAND_MAX_PAGESIZE + NAND_MAX_OOBSIZE)
|
|
|
{
|
|
@@ -2009,18 +2008,18 @@ static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
|
|
|
denali->nand.read_byte = denali_read_byte;
|
|
|
denali->nand.waitfunc = denali_waitfunc;
|
|
|
|
|
|
- /* scan for NAND devices attached to the controller
|
|
|
+ /* scan for NAND devices attached to the controller
|
|
|
* this is the first stage in a two step process to register
|
|
|
- * with the nand subsystem */
|
|
|
+ * with the nand subsystem */
|
|
|
if (nand_scan_ident(&denali->mtd, LLD_MAX_FLASH_BANKS, NULL))
|
|
|
{
|
|
|
ret = -ENXIO;
|
|
|
goto failed_nand;
|
|
|
}
|
|
|
-
|
|
|
- /* second stage of the NAND scan
|
|
|
- * this stage requires information regarding ECC and
|
|
|
- * bad block management. */
|
|
|
+
|
|
|
+ /* second stage of the NAND scan
|
|
|
+ * this stage requires information regarding ECC and
|
|
|
+ * bad block management. */
|
|
|
|
|
|
/* Bad block management */
|
|
|
denali->nand.bbt_td = &bbt_main_descr;
|
|
@@ -2041,9 +2040,9 @@ static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
|
|
|
denali->nand.ecc.bytes = ECC_BYTES_SLC;
|
|
|
}
|
|
|
|
|
|
- /* These functions are required by the NAND core framework, otherwise,
|
|
|
- the NAND core will assert. However, we don't need them, so we'll stub
|
|
|
- them out. */
|
|
|
+ /* These functions are required by the NAND core framework, otherwise,
|
|
|
+ * the NAND core will assert. However, we don't need them, so we'll stub
|
|
|
+ * them out. */
|
|
|
denali->nand.ecc.calculate = denali_ecc_calculate;
|
|
|
denali->nand.ecc.correct = denali_ecc_correct;
|
|
|
denali->nand.ecc.hwctl = denali_ecc_hwctl;
|
|
@@ -2079,7 +2078,7 @@ static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
|
|
|
failed_remap_csr:
|
|
|
pci_release_regions(dev);
|
|
|
failed_req_csr:
|
|
|
- pci_unmap_single(dev, denali->buf.dma_buf, DENALI_BUF_SIZE,
|
|
|
+ pci_unmap_single(dev, denali->buf.dma_buf, DENALI_BUF_SIZE,
|
|
|
PCI_DMA_BIDIRECTIONAL);
|
|
|
failed_enable:
|
|
|
kfree(denali);
|
|
@@ -2103,7 +2102,7 @@ static void denali_pci_remove(struct pci_dev *dev)
|
|
|
iounmap(denali->flash_mem);
|
|
|
pci_release_regions(dev);
|
|
|
pci_disable_device(dev);
|
|
|
- pci_unmap_single(dev, denali->buf.dma_buf, DENALI_BUF_SIZE,
|
|
|
+ pci_unmap_single(dev, denali->buf.dma_buf, DENALI_BUF_SIZE,
|
|
|
PCI_DMA_BIDIRECTIONAL);
|
|
|
pci_set_drvdata(dev, NULL);
|
|
|
kfree(denali);
|