***************************************************************************/
/*
- * Freescale iMX2* OpenOCD NAND Flash controller support.
- * based on Freescale iMX3* OpenOCD NAND Flash controller support.
+ * Freescale iMX OpenOCD NAND Flash controller support.
+ * based on Freescale iMX2* and iMX3* OpenOCD NAND Flash controller support.
*/
/*
- * driver tested with Samsung K9F2G08UXA and Numonyx/ST NAND02G-B2D @imx27
+ * driver tested with Samsung K9F2G08UXA and Numonyx/ST NAND02G-B2D @mxc
* tested "nand probe #", "nand erase # 0 #", "nand dump # file 0 #",
* "nand write # file 0", "nand verify"
*
* get_next_halfword_from_sram_buffer() not tested
- * !! all function only tested with 2k page nand device; imx27_write_page
+ * !! all function only tested with 2k page nand device; mxc_write_page
* writes the 4 MAIN_BUFFER's and is not compatible with < 2k page
* !! oob must be be used due to NFS bug
*/
* This is useful when OpenOCD is used with a graphical
* front-end to estimate progression of the global read/write
*/
-#undef _MX2_PRINT_STAT
-/* #define _MX2_PRINT_STAT */
+#undef _MXC_PRINT_STAT
+/* #define _MXC_PRINT_STAT */
static const char target_not_halted_err_msg[] =
- "target must be halted to use mx2 NAND flash controller";
+ "target must be halted to use mxc NAND flash controller";
static const char data_block_size_err_msg[] =
"minimal granularity is one half-word, %" PRId32 " is incorrect";
static const char sram_buffer_bounds_err_msg[] =
static unsigned char sign_of_sequental_byte_read;
static int initialize_nf_controller(struct nand_device *nand);
-static int get_next_byte_from_sram_buffer(struct target *target, uint8_t *value);
-static int get_next_halfword_from_sram_buffer(struct target *target, uint16_t *value);
-static int poll_for_complete_op(struct target *target, const char *text);
+static int get_next_byte_from_sram_buffer(struct nand_device *nand, uint8_t *value);
+static int get_next_halfword_from_sram_buffer(struct nand_device *nand, uint16_t *value);
+static int poll_for_complete_op(struct nand_device *nand, const char *text);
static int validate_target_state(struct nand_device *nand);
static int do_data_output(struct nand_device *nand);
-static int imx27_command(struct nand_device *nand, uint8_t command);
-static int imx27_address(struct nand_device *nand, uint8_t address);
+static int mxc_command(struct nand_device *nand, uint8_t command);
+static int mxc_address(struct nand_device *nand, uint8_t address);
-NAND_DEVICE_COMMAND_HANDLER(imx27_nand_device_command)
+NAND_DEVICE_COMMAND_HANDLER(mxc_nand_device_command)
{
- struct mx2_nf_controller *mx2_nf_info;
+ struct mxc_nf_controller *mxc_nf_info;
int hwecc_needed;
int x;
- mx2_nf_info = malloc(sizeof(struct mx2_nf_controller));
- if (mx2_nf_info == NULL) {
+ mxc_nf_info = malloc(sizeof(struct mxc_nf_controller));
+ if (mxc_nf_info == NULL) {
LOG_ERROR("no memory for nand controller");
return ERROR_FAIL;
}
- nand->controller_priv = mx2_nf_info;
+ nand->controller_priv = mxc_nf_info;
- if (CMD_ARGC < 3) {
- LOG_ERROR("use \"nand device imx27 target noecc|hwecc\"");
+ if (CMD_ARGC < 4) {
+ LOG_ERROR("use \"nand device mxc target mx27|mx31|mx35 noecc|hwecc [biswap]\"");
return ERROR_FAIL;
}
+ /*
+ * check board type
+ */
+ if (strcmp(CMD_ARGV[2], "mx27") == 0)
+ mxc_nf_info->mxc_base_addr = 0xD8000000;
+ else if (strcmp(CMD_ARGV[2], "mx31") == 0)
+ mxc_nf_info->mxc_base_addr = 0xB8000000;
+ else if (strcmp(CMD_ARGV[2], "mx35") == 0)
+ mxc_nf_info->mxc_base_addr = 0xBB000000;
+
/*
* check hwecc requirements
*/
- hwecc_needed = strcmp(CMD_ARGV[2], "hwecc");
+ hwecc_needed = strcmp(CMD_ARGV[3], "hwecc");
if (hwecc_needed == 0)
- mx2_nf_info->flags.hw_ecc_enabled = 1;
+ mxc_nf_info->flags.hw_ecc_enabled = 1;
else
- mx2_nf_info->flags.hw_ecc_enabled = 0;
+ mxc_nf_info->flags.hw_ecc_enabled = 0;
- mx2_nf_info->optype = MX2_NF_DATAOUT_PAGE;
- mx2_nf_info->fin = MX2_NF_FIN_NONE;
- mx2_nf_info->flags.target_little_endian =
+ mxc_nf_info->optype = MXC_NF_DATAOUT_PAGE;
+ mxc_nf_info->fin = MXC_NF_FIN_NONE;
+ mxc_nf_info->flags.target_little_endian =
(nand->target->endianness == TARGET_LITTLE_ENDIAN);
+ /*
+ * should factory bad block indicator be swaped
+ * as a workaround for how the nfc handles pages.
+ */
+ if (CMD_ARGC > 4 && strcmp(CMD_ARGV[4], "biswap") == 0) {
+ LOG_DEBUG("BI-swap enabled");
+ mxc_nf_info->flags.biswap_enabled = 1;
+ }
+
/*
* testing host endianness
*/
x = 1;
if (*(char *) &x == 1)
- mx2_nf_info->flags.host_little_endian = 1;
+ mxc_nf_info->flags.host_little_endian = 1;
else
- mx2_nf_info->flags.host_little_endian = 0;
+ mxc_nf_info->flags.host_little_endian = 0;
return ERROR_OK;
}
-static int imx27_init(struct nand_device *nand)
+COMMAND_HANDLER(handle_mxc_biswap_command)
{
- struct mx2_nf_controller *mx2_nf_info = nand->controller_priv;
+ struct nand_device *nand = NULL;
+ struct mxc_nf_controller *mxc_nf_info = NULL;
+
+ if (CMD_ARGC < 1 || CMD_ARGC > 2)
+ return ERROR_COMMAND_SYNTAX_ERROR;
+
+ int retval = CALL_COMMAND_HANDLER(nand_command_get_device, 0, &nand);
+ if (retval != ERROR_OK) {
+ command_print(CMD_CTX, "invalid nand device number or name: %s", CMD_ARGV[0]);
+ return ERROR_COMMAND_ARGUMENT_INVALID;
+ }
+
+ mxc_nf_info = nand->controller_priv;
+ if (CMD_ARGC == 2) {
+ if (strcmp(CMD_ARGV[1], "enable") == 0)
+ mxc_nf_info->flags.biswap_enabled = true;
+ else
+ mxc_nf_info->flags.biswap_enabled = false;
+ }
+ if (mxc_nf_info->flags.biswap_enabled)
+ command_print(CMD_CTX, "BI-swapping enabled on %s", nand->name);
+ else
+ command_print(CMD_CTX, "BI-swapping disabled on %s", nand->name);
+
+ return ERROR_OK;
+}
+
+static const struct command_registration mxc_sub_command_handlers[] = {
+ {
+ .name = "biswap",
+ .handler = handle_mxc_biswap_command ,
+ .help = "Turns on/off bad block information swaping from main area, "
+ "without parameter query status.",
+ .usage = "bank_id ['enable'|'disable']",
+ },
+ COMMAND_REGISTRATION_DONE
+};
+
+static const struct command_registration mxc_nand_command_handler[] = {
+ {
+ .name = "mxc",
+ .mode = COMMAND_ANY,
+ .help = "MXC NAND flash controller commands",
+ .chain = mxc_sub_command_handlers
+ },
+ COMMAND_REGISTRATION_DONE
+};
+
+static int mxc_init(struct nand_device *nand)
+{
+ struct mxc_nf_controller *mxc_nf_info = nand->controller_priv;
struct target *target = nand->target;
int validate_target_result;
if (validate_target_result != ERROR_OK)
return validate_target_result;
- target_read_u16(target, MX2_NF_BUFSIZ, &buffsize_register_content);
- mx2_nf_info->flags.one_kb_sram = !(buffsize_register_content & 0x000f);
+ target_read_u16(target, MXC_NF_BUFSIZ, &buffsize_register_content);
+ mxc_nf_info->flags.one_kb_sram = !(buffsize_register_content & 0x000f);
- target_read_u32(target, MX2_FMCR, &pcsr_register_content);
+ target_read_u32(target, MXC_FMCR, &pcsr_register_content);
if (!nand->bus_width) {
- /* bus_width not yet defined. Read it from MX2_FMCR */
+ /* bus_width not yet defined. Read it from MXC_FMCR */
nand->bus_width =
- (pcsr_register_content & MX2_FMCR_NF_16BIT_SEL) ? 16 : 8;
+ (pcsr_register_content & MXC_FMCR_NF_16BIT_SEL) ? 16 : 8;
} else {
- /* bus_width forced in soft. Sync it to MX2_FMCR */
+ /* bus_width forced in soft. Sync it to MXC_FMCR */
pcsr_register_content |=
- ((nand->bus_width == 16) ? MX2_FMCR_NF_16BIT_SEL : 0x00000000);
- target_write_u32(target, MX2_FMCR, pcsr_register_content);
+ ((nand->bus_width == 16) ? MXC_FMCR_NF_16BIT_SEL : 0x00000000);
+ target_write_u32(target, MXC_FMCR, pcsr_register_content);
}
if (nand->bus_width == 16)
- LOG_DEBUG("MX2_NF : bus is 16-bit width");
+ LOG_DEBUG("MXC_NF : bus is 16-bit width");
else
- LOG_DEBUG("MX2_NF : bus is 8-bit width");
+ LOG_DEBUG("MXC_NF : bus is 8-bit width");
if (!nand->page_size) {
- nand->page_size = (pcsr_register_content & MX2_FMCR_NF_FMS) ? 2048 : 512;
+ nand->page_size = (pcsr_register_content & MXC_FMCR_NF_FMS) ? 2048 : 512;
} else {
pcsr_register_content |=
- ((nand->page_size == 2048) ? MX2_FMCR_NF_FMS : 0x00000000);
- target_write_u32(target, MX2_FMCR, pcsr_register_content);
+ ((nand->page_size == 2048) ? MXC_FMCR_NF_FMS : 0x00000000);
+ target_write_u32(target, MXC_FMCR, pcsr_register_content);
}
- if (mx2_nf_info->flags.one_kb_sram && (nand->page_size == 2048)) {
+ if (mxc_nf_info->flags.one_kb_sram && (nand->page_size == 2048)) {
LOG_ERROR("NAND controller have only 1 kb SRAM, so "
"pagesize 2048 is incompatible with it");
} else {
- LOG_DEBUG("MX2_NF : NAND controller can handle pagesize of 2048");
+ LOG_DEBUG("MXC_NF : NAND controller can handle pagesize of 2048");
}
initialize_nf_controller(nand);
retval = ERROR_OK;
- retval |= imx27_command(nand, NAND_CMD_STATUS);
- retval |= imx27_address(nand, 0x00);
+ retval |= mxc_command(nand, NAND_CMD_STATUS);
+ retval |= mxc_address(nand, 0x00);
retval |= do_data_output(nand);
if (retval != ERROR_OK) {
LOG_ERROR(get_status_register_err_msg);
return ERROR_FAIL;
}
- target_read_u16(target, MX2_NF_MAIN_BUFFER0, &nand_status_content);
+ target_read_u16(target, MXC_NF_MAIN_BUFFER0, &nand_status_content);
if (!(nand_status_content & 0x0080)) {
LOG_INFO("NAND read-only");
- mx2_nf_info->flags.nand_readonly = 1;
+ mxc_nf_info->flags.nand_readonly = 1;
} else {
- mx2_nf_info->flags.nand_readonly = 0;
+ mxc_nf_info->flags.nand_readonly = 0;
}
return ERROR_OK;
}
-static int imx27_read_data(struct nand_device *nand, void *data)
+static int mxc_read_data(struct nand_device *nand, void *data)
{
- struct target *target = nand->target;
int validate_target_result;
int try_data_output_from_nand_chip;
/*
*/
try_data_output_from_nand_chip = do_data_output(nand);
if (try_data_output_from_nand_chip != ERROR_OK) {
- LOG_ERROR("imx27_read_data : read data failed : '%x'",
+ LOG_ERROR("mxc_read_data : read data failed : '%x'",
try_data_output_from_nand_chip);
return try_data_output_from_nand_chip;
}
if (nand->bus_width == 16)
- get_next_halfword_from_sram_buffer(target, data);
+ get_next_halfword_from_sram_buffer(nand, data);
else
- get_next_byte_from_sram_buffer(target, data);
+ get_next_byte_from_sram_buffer(nand, data);
return ERROR_OK;
}
-static int imx27_write_data(struct nand_device *nand, uint16_t data)
+static int mxc_write_data(struct nand_device *nand, uint16_t data)
{
LOG_ERROR("write_data() not implemented");
return ERROR_NAND_OPERATION_FAILED;
}
-static int imx27_reset(struct nand_device *nand)
+static int mxc_reset(struct nand_device *nand)
{
/*
* validate target state
return ERROR_OK;
}
-static int imx27_command(struct nand_device *nand, uint8_t command)
+static int mxc_command(struct nand_device *nand, uint8_t command)
{
- struct mx2_nf_controller *mx2_nf_info = nand->controller_priv;
+ struct mxc_nf_controller *mxc_nf_info = nand->controller_priv;
struct target *target = nand->target;
int validate_target_result;
int poll_result;
/* set read point for data_read() and read_block_data() to
* spare area in SRAM buffer
*/
- in_sram_address = MX2_NF_SPARE_BUFFER0;
+ in_sram_address = MXC_NF_SPARE_BUFFER0;
break;
case NAND_CMD_READ1:
command = NAND_CMD_READ0;
/*
* offset == one half of page size
*/
- in_sram_address = MX2_NF_MAIN_BUFFER0 + (nand->page_size >> 1);
+ in_sram_address = MXC_NF_MAIN_BUFFER0 + (nand->page_size >> 1);
break;
default:
- in_sram_address = MX2_NF_MAIN_BUFFER0;
+ in_sram_address = MXC_NF_MAIN_BUFFER0;
break;
}
- target_write_u16(target, MX2_NF_FCMD, command);
+ target_write_u16(target, MXC_NF_FCMD, command);
/*
- * start command input operation (set MX2_NF_BIT_OP_DONE==0)
+ * start command input operation (set MXC_NF_BIT_OP_DONE==0)
*/
- target_write_u16(target, MX2_NF_CFG2, MX2_NF_BIT_OP_FCI);
- poll_result = poll_for_complete_op(target, "command");
+ target_write_u16(target, MXC_NF_CFG2, MXC_NF_BIT_OP_FCI);
+ poll_result = poll_for_complete_op(nand, "command");
if (poll_result != ERROR_OK)
return poll_result;
/*
/* Handle special read command and adjust NF_CFG2(FDO) */
switch (command) {
case NAND_CMD_READID:
- mx2_nf_info->optype = MX2_NF_DATAOUT_NANDID;
- mx2_nf_info->fin = MX2_NF_FIN_DATAOUT;
+ mxc_nf_info->optype = MXC_NF_DATAOUT_NANDID;
+ mxc_nf_info->fin = MXC_NF_FIN_DATAOUT;
break;
case NAND_CMD_STATUS:
- mx2_nf_info->optype = MX2_NF_DATAOUT_NANDSTATUS;
- mx2_nf_info->fin = MX2_NF_FIN_DATAOUT;
- target_write_u16 (target, MX2_NF_BUFADDR, 0);
+ mxc_nf_info->optype = MXC_NF_DATAOUT_NANDSTATUS;
+ mxc_nf_info->fin = MXC_NF_FIN_DATAOUT;
+ target_write_u16 (target, MXC_NF_BUFADDR, 0);
in_sram_address = 0;
break;
case NAND_CMD_READ0:
- mx2_nf_info->fin = MX2_NF_FIN_DATAOUT;
- mx2_nf_info->optype = MX2_NF_DATAOUT_PAGE;
+ mxc_nf_info->fin = MXC_NF_FIN_DATAOUT;
+ mxc_nf_info->optype = MXC_NF_DATAOUT_PAGE;
break;
default:
/* Ohter command use the default 'One page data out' FDO */
- mx2_nf_info->optype = MX2_NF_DATAOUT_PAGE;
+ mxc_nf_info->optype = MXC_NF_DATAOUT_PAGE;
break;
}
return ERROR_OK;
}
-static int imx27_address(struct nand_device *nand, uint8_t address)
+static int mxc_address(struct nand_device *nand, uint8_t address)
{
+ struct mxc_nf_controller *mxc_nf_info = nand->controller_priv;
struct target *target = nand->target;
int validate_target_result;
int poll_result;
if (validate_target_result != ERROR_OK)
return validate_target_result;
- target_write_u16(target, MX2_NF_FADDR, address);
+ target_write_u16(target, MXC_NF_FADDR, address);
/*
- * start address input operation (set MX2_NF_BIT_OP_DONE==0)
+ * start address input operation (set MXC_NF_BIT_OP_DONE==0)
*/
- target_write_u16(target, MX2_NF_CFG2, MX2_NF_BIT_OP_FAI);
- poll_result = poll_for_complete_op(target, "address");
+ target_write_u16(target, MXC_NF_CFG2, MXC_NF_BIT_OP_FAI);
+ poll_result = poll_for_complete_op(nand, "address");
if (poll_result != ERROR_OK)
return poll_result;
return ERROR_OK;
}
-static int imx27_nand_ready(struct nand_device *nand, int tout)
+static int mxc_nand_ready(struct nand_device *nand, int tout)
{
- uint16_t poll_complete_status;
+ struct mxc_nf_controller *mxc_nf_info = nand->controller_priv;
struct target *target = nand->target;
+ uint16_t poll_complete_status;
int validate_target_result;
/*
return validate_target_result;
do {
- target_read_u16(target, MX2_NF_CFG2, &poll_complete_status);
- if (poll_complete_status & MX2_NF_BIT_OP_DONE)
+ target_read_u16(target, MXC_NF_CFG2, &poll_complete_status);
+ if (poll_complete_status & MXC_NF_BIT_OP_DONE)
return tout;
alive_sleep(1);
return tout;
}
-static int imx27_write_page(struct nand_device *nand, uint32_t page,
+static int mxc_write_page(struct nand_device *nand, uint32_t page,
uint8_t *data, uint32_t data_size,
uint8_t *oob, uint32_t oob_size)
{
- struct mx2_nf_controller *mx2_nf_info = nand->controller_priv;
+ struct mxc_nf_controller *mxc_nf_info = nand->controller_priv;
struct target *target = nand->target;
int retval;
uint16_t nand_status_content;
if (retval != ERROR_OK)
return retval;
- in_sram_address = MX2_NF_MAIN_BUFFER0;
+ in_sram_address = MXC_NF_MAIN_BUFFER0;
sign_of_sequental_byte_read = 0;
retval = ERROR_OK;
- retval |= imx27_command(nand, NAND_CMD_SEQIN);
- retval |= imx27_address(nand, 0); /* col */
- retval |= imx27_address(nand, 0); /* col */
- retval |= imx27_address(nand, page & 0xff); /* page address */
- retval |= imx27_address(nand, (page >> 8) & 0xff); /* page address */
- retval |= imx27_address(nand, (page >> 16) & 0xff); /* page address */
-
- target_write_buffer(target, MX2_NF_MAIN_BUFFER0, data_size, data);
+ retval |= mxc_command(nand, NAND_CMD_SEQIN);
+ retval |= mxc_address(nand, 0); /* col */
+ retval |= mxc_address(nand, 0); /* col */
+ retval |= mxc_address(nand, page & 0xff); /* page address */
+ retval |= mxc_address(nand, (page >> 8) & 0xff); /* page address */
+ retval |= mxc_address(nand, (page >> 16) & 0xff); /* page address */
+
+ target_write_buffer(target, MXC_NF_MAIN_BUFFER0, data_size, data);
if (oob) {
- if (mx2_nf_info->flags.hw_ecc_enabled) {
+ if (mxc_nf_info->flags.hw_ecc_enabled) {
/*
* part of spare block will be overrided by hardware
* ECC generator
LOG_DEBUG("part of spare block will be overrided "
"by hardware ECC generator");
}
- target_write_buffer(target, MX2_NF_SPARE_BUFFER0, oob_size, oob);
+ target_write_buffer(target, MXC_NF_SPARE_BUFFER0, oob_size, oob);
}
- /* BI-swap - work-around of imx27 NFC for NAND device with page == 2kb */
- target_read_u16(target, MX2_NF_MAIN_BUFFER3 + 464, &swap1);
- if (oob) {
- LOG_ERROR("Due to NFC Bug, oob is not correctly implemented in mx2 driver");
- return ERROR_NAND_OPERATION_FAILED;
+
+ if (nand->page_size > 512 && mxc_nf_info->flags.biswap_enabled) {
+ /* BI-swap - work-around of i.MX NFC for NAND device with page == 2kb*/
+ target_read_u16(target, MXC_NF_MAIN_BUFFER3 + 464, &swap1);
+ if (oob) {
+ LOG_ERROR("Due to NFC Bug, oob is not correctly implemented in mxc driver");
+ return ERROR_NAND_OPERATION_FAILED;
+ }
+ swap2 = 0xffff; /* Spare buffer unused forced to 0xffff */
+ new_swap1 = (swap1 & 0xFF00) | (swap2 >> 8);
+ swap2 = (swap1 << 8) | (swap2 & 0xFF);
+ target_write_u16(target, MXC_NF_MAIN_BUFFER3 + 464, new_swap1);
+ target_write_u16(target, MXC_NF_SPARE_BUFFER3 + 4, swap2);
}
- swap2 = 0xffff; /* Spare buffer unused forced to 0xffff */
- new_swap1 = (swap1 & 0xFF00) | (swap2 >> 8);
- swap2 = (swap1 << 8) | (swap2 & 0xFF);
- target_write_u16(target, MX2_NF_MAIN_BUFFER3 + 464, new_swap1);
- target_write_u16(target, MX2_NF_SPARE_BUFFER3 + 4, swap2);
/*
- * start data input operation (set MX2_NF_BIT_OP_DONE==0)
+ * start data input operation (set MXC_NF_BIT_OP_DONE==0)
*/
- target_write_u16(target, MX2_NF_BUFADDR, 0);
- target_write_u16(target, MX2_NF_CFG2, MX2_NF_BIT_OP_FDI);
- poll_result = poll_for_complete_op(target, "data input");
+ target_write_u16(target, MXC_NF_BUFADDR, 0);
+ target_write_u16(target, MXC_NF_CFG2, MXC_NF_BIT_OP_FDI);
+ poll_result = poll_for_complete_op(nand, "data input");
if (poll_result != ERROR_OK)
return poll_result;
- target_write_u16(target, MX2_NF_BUFADDR, 1);
- target_write_u16(target, MX2_NF_CFG2, MX2_NF_BIT_OP_FDI);
- poll_result = poll_for_complete_op(target, "data input");
+ target_write_u16(target, MXC_NF_BUFADDR, 1);
+ target_write_u16(target, MXC_NF_CFG2, MXC_NF_BIT_OP_FDI);
+ poll_result = poll_for_complete_op(nand, "data input");
if (poll_result != ERROR_OK)
return poll_result;
- target_write_u16(target, MX2_NF_BUFADDR, 2);
- target_write_u16(target, MX2_NF_CFG2, MX2_NF_BIT_OP_FDI);
- poll_result = poll_for_complete_op(target, "data input");
+ target_write_u16(target, MXC_NF_BUFADDR, 2);
+ target_write_u16(target, MXC_NF_CFG2, MXC_NF_BIT_OP_FDI);
+ poll_result = poll_for_complete_op(nand, "data input");
if (poll_result != ERROR_OK)
return poll_result;
- target_write_u16(target, MX2_NF_BUFADDR, 3);
- target_write_u16(target, MX2_NF_CFG2, MX2_NF_BIT_OP_FDI);
- poll_result = poll_for_complete_op(target, "data input");
+ target_write_u16(target, MXC_NF_BUFADDR, 3);
+ target_write_u16(target, MXC_NF_CFG2, MXC_NF_BIT_OP_FDI);
+ poll_result = poll_for_complete_op(nand, "data input");
if (poll_result != ERROR_OK)
return poll_result;
- retval |= imx27_command(nand, NAND_CMD_PAGEPROG);
+ retval |= mxc_command(nand, NAND_CMD_PAGEPROG);
if (retval != ERROR_OK)
return retval;
* check status register
*/
retval = ERROR_OK;
- retval |= imx27_command(nand, NAND_CMD_STATUS);
- target_write_u16 (target, MX2_NF_BUFADDR, 0);
- mx2_nf_info->optype = MX2_NF_DATAOUT_NANDSTATUS;
- mx2_nf_info->fin = MX2_NF_FIN_DATAOUT;
+ retval |= mxc_command(nand, NAND_CMD_STATUS);
+ target_write_u16 (target, MXC_NF_BUFADDR, 0);
+ mxc_nf_info->optype = MXC_NF_DATAOUT_NANDSTATUS;
+ mxc_nf_info->fin = MXC_NF_FIN_DATAOUT;
retval |= do_data_output(nand);
if (retval != ERROR_OK) {
LOG_ERROR(get_status_register_err_msg);
return retval;
}
- target_read_u16(target, MX2_NF_MAIN_BUFFER0, &nand_status_content);
+ target_read_u16(target, MXC_NF_MAIN_BUFFER0, &nand_status_content);
if (nand_status_content & 0x0001) {
/*
* page not correctly written
*/
return ERROR_NAND_OPERATION_FAILED;
}
-#ifdef _MX2_PRINT_STAT
+#ifdef _MXC_PRINT_STAT
LOG_INFO("%d bytes newly written", data_size);
#endif
return ERROR_OK;
}
-static int imx27_read_page(struct nand_device *nand, uint32_t page,
+static int mxc_read_page(struct nand_device *nand, uint32_t page,
uint8_t *data, uint32_t data_size,
uint8_t *oob, uint32_t oob_size)
{
- struct mx2_nf_controller *mx2_nf_info = nand->controller_priv;
+ struct mxc_nf_controller *mxc_nf_info = nand->controller_priv;
struct target *target = nand->target;
int retval;
uint16_t swap1, swap2, new_swap1;
if (retval != ERROR_OK) {
return retval;
}
- /* Reset address_cycles before imx27_command ?? */
- retval = imx27_command(nand, NAND_CMD_READ0);
+ /* Reset address_cycles before mxc_command ?? */
+ retval = mxc_command(nand, NAND_CMD_READ0);
if (retval != ERROR_OK) return retval;
- retval = imx27_address(nand, 0); /* col */
+ retval = mxc_address(nand, 0); /* col */
if (retval != ERROR_OK) return retval;
- retval = imx27_address(nand, 0); /* col */
+ retval = mxc_address(nand, 0); /* col */
if (retval != ERROR_OK) return retval;
- retval = imx27_address(nand, page & 0xff); /* page address */
+ retval = mxc_address(nand, page & 0xff); /* page address */
if (retval != ERROR_OK) return retval;
- retval = imx27_address(nand, (page >> 8) & 0xff); /* page address */
+ retval = mxc_address(nand, (page >> 8) & 0xff); /* page address */
if (retval != ERROR_OK) return retval;
- retval = imx27_address(nand, (page >> 16) & 0xff); /* page address */
+ retval = mxc_address(nand, (page >> 16) & 0xff); /* page address */
if (retval != ERROR_OK) return retval;
- retval = imx27_command(nand, NAND_CMD_READSTART);
+ retval = mxc_command(nand, NAND_CMD_READSTART);
if (retval != ERROR_OK) return retval;
- target_write_u16(target, MX2_NF_BUFADDR, 0);
- mx2_nf_info->fin = MX2_NF_FIN_DATAOUT;
+ target_write_u16(target, MXC_NF_BUFADDR, 0);
+ mxc_nf_info->fin = MXC_NF_FIN_DATAOUT;
retval = do_data_output(nand);
if (retval != ERROR_OK) {
- LOG_ERROR("MX2_NF : Error reading page 0");
+ LOG_ERROR("MXC_NF : Error reading page 0");
return retval;
}
/* Test nand page size to know how much MAIN_BUFFER must be written */
- target_write_u16(target, MX2_NF_BUFADDR, 1);
- mx2_nf_info->fin = MX2_NF_FIN_DATAOUT;
+ target_write_u16(target, MXC_NF_BUFADDR, 1);
+ mxc_nf_info->fin = MXC_NF_FIN_DATAOUT;
retval = do_data_output(nand);
if (retval != ERROR_OK) {
- LOG_ERROR("MX2_NF : Error reading page 1");
+ LOG_ERROR("MXC_NF : Error reading page 1");
return retval;
}
- target_write_u16(target, MX2_NF_BUFADDR, 2);
- mx2_nf_info->fin = MX2_NF_FIN_DATAOUT;
+ target_write_u16(target, MXC_NF_BUFADDR, 2);
+ mxc_nf_info->fin = MXC_NF_FIN_DATAOUT;
retval = do_data_output(nand);
if (retval != ERROR_OK) {
- LOG_ERROR("MX2_NF : Error reading page 2");
+ LOG_ERROR("MXC_NF : Error reading page 2");
return retval;
}
- target_write_u16(target, MX2_NF_BUFADDR, 3);
- mx2_nf_info->fin = MX2_NF_FIN_DATAOUT;
+ target_write_u16(target, MXC_NF_BUFADDR, 3);
+ mxc_nf_info->fin = MXC_NF_FIN_DATAOUT;
retval = do_data_output(nand);
if (retval != ERROR_OK) {
- LOG_ERROR("MX2_NF : Error reading page 3");
+ LOG_ERROR("MXC_NF : Error reading page 3");
return retval;
}
- /* BI-swap - work-around of imx27 NFC for NAND device with page == 2k */
- target_read_u16(target, MX2_NF_MAIN_BUFFER3 + 464, &swap1);
- target_read_u16(target, MX2_NF_SPARE_BUFFER3 + 4, &swap2);
- new_swap1 = (swap1 & 0xFF00) | (swap2 >> 8);
- swap2 = (swap1 << 8) | (swap2 & 0xFF);
- target_write_u16(target, MX2_NF_MAIN_BUFFER3 + 464, new_swap1);
- target_write_u16(target, MX2_NF_SPARE_BUFFER3 + 4, swap2);
+
+ if (nand->page_size > 512 && mxc_nf_info->flags.biswap_enabled) {
+ /* BI-swap - work-around of mxc NFC for NAND device with page == 2k */
+ target_read_u16(target, MXC_NF_MAIN_BUFFER3 + 464, &swap1);
+ target_read_u16(target, MXC_NF_SPARE_BUFFER3 + 4, &swap2);
+ new_swap1 = (swap1 & 0xFF00) | (swap2 >> 8);
+ swap2 = (swap1 << 8) | (swap2 & 0xFF);
+ target_write_u16(target, MXC_NF_MAIN_BUFFER3 + 464, new_swap1);
+ target_write_u16(target, MXC_NF_SPARE_BUFFER3 + 4, swap2);
+ }
if (data)
- target_read_buffer(target, MX2_NF_MAIN_BUFFER0, data_size, data);
+ target_read_buffer(target, MXC_NF_MAIN_BUFFER0, data_size, data);
if (oob)
- target_read_buffer(target, MX2_NF_SPARE_BUFFER0, oob_size, oob);
+ target_read_buffer(target, MXC_NF_SPARE_BUFFER0, oob_size, oob);
-#ifdef _MX2_PRINT_STAT
+#ifdef _MXC_PRINT_STAT
if (data_size > 0) {
/* When Operation Status is read (when page is erased),
* this function is used but data_size is null.
static int initialize_nf_controller(struct nand_device *nand)
{
- struct mx2_nf_controller *mx2_nf_info = nand->controller_priv;
+ struct mxc_nf_controller *mxc_nf_info = nand->controller_priv;
struct target *target = nand->target;
uint16_t work_mode;
uint16_t temp;
/*
* resets NAND flash controller in zero time ? I dont know.
*/
- target_write_u16(target, MX2_NF_CFG1, MX2_NF_BIT_RESET_EN);
- work_mode = MX2_NF_BIT_INT_DIS; /* disable interrupt */
+ target_write_u16(target, MXC_NF_CFG1, MXC_NF_BIT_RESET_EN);
+ work_mode = MXC_NF_BIT_INT_DIS; /* disable interrupt */
if (target->endianness == TARGET_BIG_ENDIAN) {
- LOG_DEBUG("MX2_NF : work in Big Endian mode");
- work_mode |= MX2_NF_BIT_BE_EN;
+ LOG_DEBUG("MXC_NF : work in Big Endian mode");
+ work_mode |= MXC_NF_BIT_BE_EN;
} else {
- LOG_DEBUG("MX2_NF : work in Little Endian mode");
+ LOG_DEBUG("MXC_NF : work in Little Endian mode");
}
- if (mx2_nf_info->flags.hw_ecc_enabled) {
- LOG_DEBUG("MX2_NF : work with ECC mode");
- work_mode |= MX2_NF_BIT_ECC_EN;
+ if (mxc_nf_info->flags.hw_ecc_enabled) {
+ LOG_DEBUG("MXC_NF : work with ECC mode");
+ work_mode |= MXC_NF_BIT_ECC_EN;
} else {
- LOG_DEBUG("MX2_NF : work without ECC mode");
+ LOG_DEBUG("MXC_NF : work without ECC mode");
}
- target_write_u16(target, MX2_NF_CFG1, work_mode);
+ target_write_u16(target, MXC_NF_CFG1, work_mode);
/*
* unlock SRAM buffer for write; 2 mean "Unlock", other values means "Lock"
*/
- target_write_u16(target, MX2_NF_BUFCFG, 2);
- target_read_u16(target, MX2_NF_FWP, &temp);
+ target_write_u16(target, MXC_NF_BUFCFG, 2);
+ target_read_u16(target, MXC_NF_FWP, &temp);
if ((temp & 0x0007) == 1) {
LOG_ERROR("NAND flash is tight-locked, reset needed");
return ERROR_FAIL;
/*
* unlock NAND flash for write
*/
- target_write_u16(target, MX2_NF_FWP, 4);
- target_write_u16(target, MX2_NF_LOCKSTART, 0x0000);
- target_write_u16(target, MX2_NF_LOCKEND, 0xFFFF);
+ target_write_u16(target, MXC_NF_FWP, 4);
+ target_write_u16(target, MXC_NF_LOCKSTART, 0x0000);
+ target_write_u16(target, MXC_NF_LOCKEND, 0xFFFF);
/*
* 0x0000 means that first SRAM buffer @0xD800_0000 will be used
*/
- target_write_u16(target, MX2_NF_BUFADDR, 0x0000);
+ target_write_u16(target, MXC_NF_BUFADDR, 0x0000);
/*
* address of SRAM buffer
*/
- in_sram_address = MX2_NF_MAIN_BUFFER0;
+ in_sram_address = MXC_NF_MAIN_BUFFER0;
sign_of_sequental_byte_read = 0;
return ERROR_OK;
}
-static int get_next_byte_from_sram_buffer(struct target *target, uint8_t *value)
+static int get_next_byte_from_sram_buffer(struct nand_device *nand, uint8_t *value)
{
+ struct mxc_nf_controller *mxc_nf_info = nand->controller_priv;
+ struct target *target = nand->target;
static uint8_t even_byte = 0;
uint16_t temp;
/*
if (sign_of_sequental_byte_read == 0)
even_byte = 0;
- if (in_sram_address > MX2_NF_LAST_BUFFER_ADDR) {
+ if (in_sram_address > MXC_NF_LAST_BUFFER_ADDR) {
LOG_ERROR(sram_buffer_bounds_err_msg, in_sram_address);
*value = 0;
sign_of_sequental_byte_read = 0;
return ERROR_OK;
}
-static int get_next_halfword_from_sram_buffer(struct target *target, uint16_t *value)
+static int get_next_halfword_from_sram_buffer(struct nand_device *nand, uint16_t *value)
{
- if (in_sram_address > MX2_NF_LAST_BUFFER_ADDR) {
+ struct mxc_nf_controller *mxc_nf_info = nand->controller_priv;
+ struct target *target = nand->target;
+
+ if (in_sram_address > MXC_NF_LAST_BUFFER_ADDR) {
LOG_ERROR(sram_buffer_bounds_err_msg, in_sram_address);
*value = 0;
return ERROR_NAND_OPERATION_FAILED;
return ERROR_OK;
}
-static int poll_for_complete_op(struct target *target, const char *text)
+static int poll_for_complete_op(struct nand_device *nand, const char *text)
{
+ struct mxc_nf_controller *mxc_nf_info = nand->controller_priv;
+ struct target *target = nand->target;
uint16_t poll_complete_status;
+
for (int poll_cycle_count = 0; poll_cycle_count < 100; poll_cycle_count++) {
- target_read_u16(target, MX2_NF_CFG2, &poll_complete_status);
- if (poll_complete_status & MX2_NF_BIT_OP_DONE)
+ target_read_u16(target, MXC_NF_CFG2, &poll_complete_status);
+ if (poll_complete_status & MXC_NF_BIT_OP_DONE)
break;
usleep(10);
}
- if (!(poll_complete_status & MX2_NF_BIT_OP_DONE)) {
+ if (!(poll_complete_status & MXC_NF_BIT_OP_DONE)) {
LOG_ERROR("%s sending timeout", text);
return ERROR_NAND_OPERATION_FAILED;
}
static int validate_target_state(struct nand_device *nand)
{
- struct mx2_nf_controller *mx2_nf_info = nand->controller_priv;
+ struct mxc_nf_controller *mxc_nf_info = nand->controller_priv;
struct target *target = nand->target;
if (target->state != TARGET_HALTED) {
return ERROR_NAND_OPERATION_FAILED;
}
- if (mx2_nf_info->flags.target_little_endian !=
+ if (mxc_nf_info->flags.target_little_endian !=
(target->endianness == TARGET_LITTLE_ENDIAN)) {
/*
* endianness changed after NAND controller probed
static int do_data_output(struct nand_device *nand)
{
- struct mx2_nf_controller *mx2_nf_info = nand->controller_priv;
+ struct mxc_nf_controller *mxc_nf_info = nand->controller_priv;
struct target *target = nand->target;
int poll_result;
uint16_t ecc_status;
- switch (mx2_nf_info->fin) {
- case MX2_NF_FIN_DATAOUT:
+ switch (mxc_nf_info->fin) {
+ case MXC_NF_FIN_DATAOUT:
/*
- * start data output operation (set MX2_NF_BIT_OP_DONE==0)
+ * start data output operation (set MXC_NF_BIT_OP_DONE==0)
*/
- target_write_u16(target, MX2_NF_CFG2, MX2_NF_BIT_DATAOUT_TYPE(mx2_nf_info->optype));
- poll_result = poll_for_complete_op(target, "data output");
+ target_write_u16(target, MXC_NF_CFG2, MXC_NF_BIT_DATAOUT_TYPE(mxc_nf_info->optype));
+ poll_result = poll_for_complete_op(nand, "data output");
if (poll_result != ERROR_OK)
return poll_result;
- mx2_nf_info->fin = MX2_NF_FIN_NONE;
+ mxc_nf_info->fin = MXC_NF_FIN_NONE;
/*
* ECC stuff
*/
- if ((mx2_nf_info->optype == MX2_NF_DATAOUT_PAGE) && mx2_nf_info->flags.hw_ecc_enabled) {
- target_read_u16(target, MX2_NF_ECCSTATUS, &ecc_status);
+ if ((mxc_nf_info->optype == MXC_NF_DATAOUT_PAGE) &&
+ mxc_nf_info->flags.hw_ecc_enabled) {
+ target_read_u16(target, MXC_NF_ECCSTATUS, &ecc_status);
switch (ecc_status & 0x000c) {
case 1 << 2:
LOG_INFO("main area readed with 1 (correctable) error");
}
}
break;
- case MX2_NF_FIN_NONE:
+ case MXC_NF_FIN_NONE:
break;
}
return ERROR_OK;
}
-struct nand_flash_controller imx27_nand_flash_controller = {
- .name = "imx27",
- .nand_device_command = &imx27_nand_device_command,
- .init = &imx27_init,
- .reset = &imx27_reset,
- .command = &imx27_command,
- .address = &imx27_address,
- .write_data = &imx27_write_data,
- .read_data = &imx27_read_data,
- .write_page = &imx27_write_page,
- .read_page = &imx27_read_page,
- .nand_ready = &imx27_nand_ready,
+struct nand_flash_controller mxc_nand_flash_controller = {
+ .name = "mxc",
+ .nand_device_command = &mxc_nand_device_command,
+ .commands = mxc_nand_command_handler,
+ .init = &mxc_init,
+ .reset = &mxc_reset,
+ .command = &mxc_command,
+ .address = &mxc_address,
+ .write_data = &mxc_write_data,
+ .read_data = &mxc_read_data,
+ .write_page = &mxc_write_page,
+ .read_page = &mxc_read_page,
+ .nand_ready = &mxc_nand_ready,
};
projects / openocd / blobdiff