+// SPDX-License-Identifier: GPL-2.0-or-later
+
/***************************************************************************
* Copyright (C) 2009 by Alexei Babich *
* Rezonans plc., Chelyabinsk, Russia *
* impatt@mail.ru *
- * *
- * This program is free software; you can redistribute it and/or modify *
- * it under the terms of the GNU General Public License as published by *
- * the Free Software Foundation; either version 2 of the License, or *
- * (at your option) any later version. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * GNU General Public License for more details. *
- * *
- * You should have received a copy of the GNU General Public License *
- * along with this program; if not, write to the *
- * Free Software Foundation, Inc., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
/*
#include "config.h"
#endif
+#include "imp.h"
#include "mx3.h"
+#include <target/target.h>
static const char target_not_halted_err_msg[] =
- "target must be halted to use mx3 NAND flash controller";
+ "target must be halted to use mx3 NAND flash controller";
static const char data_block_size_err_msg[] =
- "minimal granularity is one half-word, %" PRId32 " is incorrect";
+ "minimal granularity is one half-word, %" PRIu32 " is incorrect";
static const char sram_buffer_bounds_err_msg[] =
- "trying to access out of SRAM buffer bound (addr=0x%" PRIx32 ")";
+ "trying to access out of SRAM buffer bound (addr=0x%" PRIx32 ")";
static const char get_status_register_err_msg[] = "can't get NAND status";
static uint32_t in_sram_address;
-unsigned char sign_of_sequental_byte_read;
-
-static int test_iomux_settings (struct target * target, uint32_t value,
- uint32_t mask, const char *text);
-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 validate_target_state (struct nand_device *nand);
-static int do_data_output (struct nand_device *nand);
-
-static int imx31_command (struct nand_device *nand, uint8_t command);
-static int imx31_address (struct nand_device *nand, uint8_t address);
-static int imx31_controller_ready (struct nand_device *nand, int tout);
+static unsigned char sign_of_sequental_byte_read;
+
+static int test_iomux_settings(struct target *target, uint32_t value,
+ uint32_t mask, const char *text);
+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 validate_target_state(struct nand_device *nand);
+static int do_data_output(struct nand_device *nand);
+
+static int imx31_command(struct nand_device *nand, uint8_t command);
+static int imx31_address(struct nand_device *nand, uint8_t address);
NAND_DEVICE_COMMAND_HANDLER(imx31_nand_device_command)
{
struct mx3_nf_controller *mx3_nf_info;
- mx3_nf_info = malloc (sizeof (struct mx3_nf_controller));
- if (mx3_nf_info == NULL)
- {
- LOG_ERROR ("no memory for nand controller");
- return ERROR_FAIL;
+ mx3_nf_info = malloc(sizeof(struct mx3_nf_controller));
+ if (!mx3_nf_info) {
+ LOG_ERROR("no memory for nand controller");
+ return ERROR_FAIL;
}
nand->controller_priv = mx3_nf_info;
- mx3_nf_info->target = get_target (CMD_ARGV[1]);
- if (mx3_nf_info->target == NULL)
- {
- LOG_ERROR ("target '%s' not defined", CMD_ARGV[1]);
- return ERROR_FAIL;
- }
if (CMD_ARGC < 3)
- {
- LOG_ERROR ("use \"nand device imx31 target noecc|hwecc\"");
- return ERROR_FAIL;
- }
+ return ERROR_COMMAND_SYNTAX_ERROR;
/*
* check hwecc requirements
*/
{
- int hwecc_needed;
- hwecc_needed = strcmp (CMD_ARGV[2], "hwecc");
- if (hwecc_needed == 0)
- {
- mx3_nf_info->flags.hw_ecc_enabled = 1;
- }
- else
- {
- mx3_nf_info->flags.hw_ecc_enabled = 0;
- }
+ int hwecc_needed;
+ hwecc_needed = strcmp(CMD_ARGV[2], "hwecc");
+ if (hwecc_needed == 0)
+ mx3_nf_info->flags.hw_ecc_enabled = 1;
+ else
+ mx3_nf_info->flags.hw_ecc_enabled = 0;
}
mx3_nf_info->optype = MX3_NF_DATAOUT_PAGE;
mx3_nf_info->fin = MX3_NF_FIN_NONE;
mx3_nf_info->flags.target_little_endian =
- (mx3_nf_info->target->endianness == TARGET_LITTLE_ENDIAN);
- /*
- * testing host endianess
- */
- {
- int x = 1;
- if (*(char *) &x == 1)
- {
- mx3_nf_info->flags.host_little_endian = 1;
- }
- else
- {
- mx3_nf_info->flags.host_little_endian = 0;
- }
- }
+ (nand->target->endianness == TARGET_LITTLE_ENDIAN);
+
return ERROR_OK;
}
-static int imx31_init (struct nand_device *nand)
+static int imx31_init(struct nand_device *nand)
{
struct mx3_nf_controller *mx3_nf_info = nand->controller_priv;
- struct target *target = mx3_nf_info->target;
+ struct target *target = nand->target;
{
- /*
- * validate target state
- */
- int validate_target_result;
- validate_target_result = validate_target_state(nand);
- if (validate_target_result != ERROR_OK)
- {
- return validate_target_result;
- }
+ /*
+ * validate target state
+ */
+ int validate_target_result;
+ validate_target_result = validate_target_state(nand);
+ if (validate_target_result != ERROR_OK)
+ return validate_target_result;
}
{
- uint16_t buffsize_register_content;
- target_read_u16 (target, MX3_NF_BUFSIZ, &buffsize_register_content);
- mx3_nf_info->flags.one_kb_sram = !(buffsize_register_content & 0x000f);
+ uint16_t buffsize_register_content;
+ target_read_u16(target, MX3_NF_BUFSIZ, &buffsize_register_content);
+ mx3_nf_info->flags.one_kb_sram = !(buffsize_register_content & 0x000f);
}
{
- uint32_t pcsr_register_content;
- target_read_u32 (target, MX3_PCSR, &pcsr_register_content);
- if (!nand->bus_width)
- {
- nand->bus_width =
- (pcsr_register_content & 0x80000000) ? 16 : 8;
- }
- else
- {
- pcsr_register_content |=
- ((nand->bus_width == 16) ? 0x80000000 : 0x00000000);
- target_write_u32 (target, MX3_PCSR, pcsr_register_content);
- }
-
- if (!nand->page_size)
- {
- nand->page_size =
- (pcsr_register_content & 0x40000000) ? 2048 : 512;
- }
- else
- {
- pcsr_register_content |=
- ((nand->page_size == 2048) ? 0x40000000 : 0x00000000);
- target_write_u32 (target, MX3_PCSR, pcsr_register_content);
- }
- if (mx3_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");
- }
+ uint32_t pcsr_register_content;
+ target_read_u32(target, MX3_PCSR, &pcsr_register_content);
+ if (!nand->bus_width) {
+ nand->bus_width = (pcsr_register_content & 0x80000000) ? 16 : 8;
+ } else {
+ pcsr_register_content |= ((nand->bus_width == 16) ? 0x80000000 : 0x00000000);
+ target_write_u32(target, MX3_PCSR, pcsr_register_content);
+ }
+
+ if (!nand->page_size) {
+ nand->page_size = (pcsr_register_content & 0x40000000) ? 2048 : 512;
+ } else {
+ pcsr_register_content |= ((nand->page_size == 2048) ? 0x40000000 : 0x00000000);
+ target_write_u32(target, MX3_PCSR, pcsr_register_content);
+ }
+ if (mx3_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");
+ }
}
{
- uint32_t cgr_register_content;
- target_read_u32 (target, MX3_CCM_CGR2, &cgr_register_content);
- if (!(cgr_register_content & 0x00000300))
- {
- LOG_ERROR ("clock gating to EMI disabled");
- return ERROR_FAIL;
- }
+ uint32_t cgr_register_content;
+ target_read_u32(target, MX3_CCM_CGR2, &cgr_register_content);
+ if (!(cgr_register_content & 0x00000300)) {
+ LOG_ERROR("clock gating to EMI disabled");
+ return ERROR_FAIL;
+ }
}
{
- uint32_t gpr_register_content;
- target_read_u32 (target, MX3_GPR, &gpr_register_content);
- if (gpr_register_content & 0x00000060)
- {
- LOG_ERROR ("pins mode overrided by GPR");
- return ERROR_FAIL;
- }
+ uint32_t gpr_register_content;
+ target_read_u32(target, MX3_GPR, &gpr_register_content);
+ if (gpr_register_content & 0x00000060) {
+ LOG_ERROR("pins mode overridden by GPR");
+ return ERROR_FAIL;
+ }
}
{
- /*
- * testing IOMUX settings; must be in "functional-mode output and
- * functional-mode input" mode
- */
- int test_iomux;
- test_iomux = ERROR_OK;
- test_iomux |=
- test_iomux_settings (target, 0x43fac0c0, 0x7f7f7f00, "d0,d1,d2");
- test_iomux |=
- test_iomux_settings (target, 0x43fac0c4, 0x7f7f7f7f, "d3,d4,d5,d6");
- test_iomux |=
- test_iomux_settings (target, 0x43fac0c8, 0x0000007f, "d7");
- if (nand->bus_width == 16)
- {
- test_iomux |=
- test_iomux_settings (target, 0x43fac0c8, 0x7f7f7f00,
- "d8,d9,d10");
- test_iomux |=
- test_iomux_settings (target, 0x43fac0cc, 0x7f7f7f7f,
- "d11,d12,d13,d14");
- test_iomux |=
- test_iomux_settings (target, 0x43fac0d0, 0x0000007f, "d15");
- }
- test_iomux |=
- test_iomux_settings (target, 0x43fac0d0, 0x7f7f7f00,
- "nfwp,nfce,nfrb");
- test_iomux |=
- test_iomux_settings (target, 0x43fac0d4, 0x7f7f7f7f,
- "nfwe,nfre,nfale,nfcle");
- if (test_iomux != ERROR_OK)
- {
- return ERROR_FAIL;
- }
+ /*
+ * testing IOMUX settings; must be in "functional-mode output and
+ * functional-mode input" mode
+ */
+ int test_iomux;
+ test_iomux = ERROR_OK;
+ test_iomux |= test_iomux_settings(target, 0x43fac0c0, 0x7f7f7f00, "d0,d1,d2");
+ test_iomux |= test_iomux_settings(target, 0x43fac0c4, 0x7f7f7f7f, "d3,d4,d5,d6");
+ test_iomux |= test_iomux_settings(target, 0x43fac0c8, 0x0000007f, "d7");
+ if (nand->bus_width == 16) {
+ test_iomux |= test_iomux_settings(target, 0x43fac0c8, 0x7f7f7f00, "d8,d9,d10");
+ test_iomux |= test_iomux_settings(target, 0x43fac0cc, 0x7f7f7f7f, "d11,d12,d13,d14");
+ test_iomux |= test_iomux_settings(target, 0x43fac0d0, 0x0000007f, "d15");
+ }
+ test_iomux |= test_iomux_settings(target, 0x43fac0d0, 0x7f7f7f00, "nfwp,nfce,nfrb");
+ test_iomux |= test_iomux_settings(target, 0x43fac0d4, 0x7f7f7f7f,
+ "nfwe,nfre,nfale,nfcle");
+ if (test_iomux != ERROR_OK)
+ return ERROR_FAIL;
}
- initialize_nf_controller (nand);
+ initialize_nf_controller(nand);
{
- int retval;
- uint16_t nand_status_content;
- retval = ERROR_OK;
- retval |= imx31_command (nand, NAND_CMD_STATUS);
- retval |= imx31_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, MX3_NF_MAIN_BUFFER0, &nand_status_content);
- if (!(nand_status_content & 0x0080))
- {
- /*
- * is host-big-endian correctly ??
- */
- LOG_INFO ("NAND read-only");
- mx3_nf_info->flags.nand_readonly = 1;
- }
- else
- {
- mx3_nf_info->flags.nand_readonly = 0;
- }
+ int retval;
+ uint16_t nand_status_content;
+ retval = ERROR_OK;
+ retval |= imx31_command(nand, NAND_CMD_STATUS);
+ retval |= imx31_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, MX3_NF_MAIN_BUFFER0, &nand_status_content);
+ if (!(nand_status_content & 0x0080)) {
+ /*
+ * is host-big-endian correctly ??
+ */
+ LOG_INFO("NAND read-only");
+ mx3_nf_info->flags.nand_readonly = 1;
+ } else
+ mx3_nf_info->flags.nand_readonly = 0;
}
return ERROR_OK;
}
-static int imx31_read_data (struct nand_device *nand, void *data)
+static int imx31_read_data(struct nand_device *nand, void *data)
{
- struct mx3_nf_controller *mx3_nf_info = nand->controller_priv;
- struct target *target = mx3_nf_info->target;
+ struct target *target = nand->target;
{
- /*
- * validate target state
- */
- int validate_target_result;
- validate_target_result = validate_target_state (nand);
- if (validate_target_result != ERROR_OK)
- {
- return validate_target_result;
- }
+ /*
+ * validate target state
+ */
+ int validate_target_result;
+ validate_target_result = validate_target_state(nand);
+ if (validate_target_result != ERROR_OK)
+ return validate_target_result;
}
{
- /*
- * get data from nand chip
- */
- 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)
- {
- return try_data_output_from_nand_chip;
- }
+ /*
+ * get data from nand chip
+ */
+ 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)
+ 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(target, data);
else
- {
- get_next_byte_from_sram_buffer (target, data);
- }
+ get_next_byte_from_sram_buffer(target, data);
return ERROR_OK;
}
-static int imx31_write_data (struct nand_device *nand, uint16_t data)
+static int imx31_write_data(struct nand_device *nand, uint16_t data)
{
- LOG_ERROR ("write_data() not implemented");
+ LOG_ERROR("write_data() not implemented");
return ERROR_NAND_OPERATION_FAILED;
}
-static int imx31_nand_ready (struct nand_device *nand, int timeout)
-{
- return imx31_controller_ready (nand, timeout);
-}
-
-static int imx31_reset (struct nand_device *nand)
+static int imx31_reset(struct nand_device *nand)
{
/*
* validate target state
*/
int validate_target_result;
- validate_target_result = validate_target_state (nand);
+ validate_target_result = validate_target_state(nand);
if (validate_target_result != ERROR_OK)
- {
- return validate_target_result;
- }
- initialize_nf_controller (nand);
+ return validate_target_result;
+ initialize_nf_controller(nand);
return ERROR_OK;
}
-static int imx31_command (struct nand_device *nand, uint8_t command)
+static int imx31_command(struct nand_device *nand, uint8_t command)
{
struct mx3_nf_controller *mx3_nf_info = nand->controller_priv;
- struct target *target = mx3_nf_info->target;
+ struct target *target = nand->target;
{
- /*
- * validate target state
- */
- int validate_target_result;
- validate_target_result = validate_target_state (nand);
- if (validate_target_result != ERROR_OK)
- {
- return validate_target_result;
- }
- }
-
- switch (command)
- {
- case NAND_CMD_READOOB:
- command = NAND_CMD_READ0;
- in_sram_address = MX3_NF_SPARE_BUFFER0; /* set read point for
- * data_read() and
- * read_block_data() to
- * spare area in SRAM
- * buffer */
- break;
- case NAND_CMD_READ1:
- command = NAND_CMD_READ0;
/*
- * offset == one half of page size
+ * validate target state
*/
- in_sram_address =
- MX3_NF_MAIN_BUFFER0 + (nand->page_size >> 1);
- default:
- in_sram_address = MX3_NF_MAIN_BUFFER0;
+ int validate_target_result;
+ validate_target_result = validate_target_state(nand);
+ if (validate_target_result != ERROR_OK)
+ return validate_target_result;
+ }
+
+ switch (command) {
+ case NAND_CMD_READOOB:
+ command = NAND_CMD_READ0;
+ in_sram_address = MX3_NF_SPARE_BUFFER0; /* set read point for
+ * data_read() and
+ * read_block_data() to
+ * spare area in SRAM
+ * buffer */
+ break;
+ case NAND_CMD_READ1:
+ command = NAND_CMD_READ0;
+ /*
+ * offset == one half of page size
+ */
+ in_sram_address = MX3_NF_MAIN_BUFFER0 + (nand->page_size >> 1);
+ break;
+ default:
+ in_sram_address = MX3_NF_MAIN_BUFFER0;
}
- target_write_u16 (target, MX3_NF_FCMD, command);
+ target_write_u16(target, MX3_NF_FCMD, command);
/*
* start command input operation (set MX3_NF_BIT_OP_DONE==0)
*/
- target_write_u16 (target, MX3_NF_CFG2, MX3_NF_BIT_OP_FCI);
+ target_write_u16(target, MX3_NF_CFG2, MX3_NF_BIT_OP_FCI);
{
- int poll_result;
- poll_result = poll_for_complete_op (target, "command");
- if (poll_result != ERROR_OK)
- {
- return poll_result;
- }
+ int poll_result;
+ poll_result = poll_for_complete_op(target, "command");
+ if (poll_result != ERROR_OK)
+ return poll_result;
}
/*
* reset cursor to begin of the buffer
*/
sign_of_sequental_byte_read = 0;
- switch (command)
- {
- case NAND_CMD_READID:
- mx3_nf_info->optype = MX3_NF_DATAOUT_NANDID;
- mx3_nf_info->fin = MX3_NF_FIN_DATAOUT;
- break;
- case NAND_CMD_STATUS:
- mx3_nf_info->optype = MX3_NF_DATAOUT_NANDSTATUS;
- mx3_nf_info->fin = MX3_NF_FIN_DATAOUT;
- break;
- case NAND_CMD_READ0:
- mx3_nf_info->fin = MX3_NF_FIN_DATAOUT;
- mx3_nf_info->optype = MX3_NF_DATAOUT_PAGE;
- break;
- default:
- mx3_nf_info->optype = MX3_NF_DATAOUT_PAGE;
+ switch (command) {
+ case NAND_CMD_READID:
+ mx3_nf_info->optype = MX3_NF_DATAOUT_NANDID;
+ mx3_nf_info->fin = MX3_NF_FIN_DATAOUT;
+ break;
+ case NAND_CMD_STATUS:
+ mx3_nf_info->optype = MX3_NF_DATAOUT_NANDSTATUS;
+ mx3_nf_info->fin = MX3_NF_FIN_DATAOUT;
+ break;
+ case NAND_CMD_READ0:
+ mx3_nf_info->fin = MX3_NF_FIN_DATAOUT;
+ mx3_nf_info->optype = MX3_NF_DATAOUT_PAGE;
+ break;
+ default:
+ mx3_nf_info->optype = MX3_NF_DATAOUT_PAGE;
}
return ERROR_OK;
}
-static int imx31_address (struct nand_device *nand, uint8_t address)
+static int imx31_address(struct nand_device *nand, uint8_t address)
{
- struct mx3_nf_controller *mx3_nf_info = nand->controller_priv;
- struct target *target = mx3_nf_info->target;
+ struct target *target = nand->target;
{
- /*
- * validate target state
- */
- int validate_target_result;
- validate_target_result = validate_target_state (nand);
- if (validate_target_result != ERROR_OK)
- {
- return validate_target_result;
- }
+ /*
+ * validate target state
+ */
+ int validate_target_result;
+ validate_target_result = validate_target_state(nand);
+ if (validate_target_result != ERROR_OK)
+ return validate_target_result;
}
- target_write_u16 (target, MX3_NF_FADDR, address);
+ target_write_u16(target, MX3_NF_FADDR, address);
/*
* start address input operation (set MX3_NF_BIT_OP_DONE==0)
*/
- target_write_u16 (target, MX3_NF_CFG2, MX3_NF_BIT_OP_FAI);
+ target_write_u16(target, MX3_NF_CFG2, MX3_NF_BIT_OP_FAI);
{
- int poll_result;
- poll_result = poll_for_complete_op (target, "address");
- if (poll_result != ERROR_OK)
- {
- return poll_result;
- }
+ int poll_result;
+ poll_result = poll_for_complete_op(target, "address");
+ if (poll_result != ERROR_OK)
+ return poll_result;
}
return ERROR_OK;
}
-static int imx31_controller_ready (struct nand_device *nand, int tout)
+static int imx31_nand_ready(struct nand_device *nand, int tout)
{
uint16_t poll_complete_status;
- struct mx3_nf_controller *mx3_nf_info = nand->controller_priv;
- struct target *target = mx3_nf_info->target;
-
- {
- /*
- * validate target state
- */
- int validate_target_result;
- validate_target_result = validate_target_state (nand);
- if (validate_target_result != ERROR_OK)
- {
- return validate_target_result;
- }
- }
+ struct target *target = nand->target;
- do
{
- target_read_u16 (target, MX3_NF_CFG2, &poll_complete_status);
- if (poll_complete_status & MX3_NF_BIT_OP_DONE)
- {
- return tout;
- }
- alive_sleep (1);
- }
- while (tout-- > 0);
+ /*
+ * validate target state
+ */
+ int validate_target_result;
+ validate_target_result = validate_target_state(nand);
+ if (validate_target_result != ERROR_OK)
+ return validate_target_result;
+ }
+
+ do {
+ target_read_u16(target, MX3_NF_CFG2, &poll_complete_status);
+ if (poll_complete_status & MX3_NF_BIT_OP_DONE)
+ return tout;
+ alive_sleep(1);
+ } while (tout-- > 0);
return tout;
}
-static int imx31_write_page (struct nand_device *nand, uint32_t page,
- uint8_t * data, uint32_t data_size, uint8_t * oob,
- uint32_t oob_size)
+static int imx31_write_page(struct nand_device *nand, uint32_t page,
+ uint8_t *data, uint32_t data_size, uint8_t *oob,
+ uint32_t oob_size)
{
struct mx3_nf_controller *mx3_nf_info = nand->controller_priv;
- struct target *target = mx3_nf_info->target;
+ struct target *target = nand->target;
- if (data_size % 2)
- {
- LOG_ERROR (data_block_size_err_msg, data_size);
- return ERROR_NAND_OPERATION_FAILED;
- }
- if (oob_size % 2)
- {
- LOG_ERROR (data_block_size_err_msg, oob_size);
- return ERROR_NAND_OPERATION_FAILED;
+ if (data_size % 2) {
+ LOG_ERROR(data_block_size_err_msg, data_size);
+ return ERROR_NAND_OPERATION_FAILED;
}
- if (!data)
- {
- LOG_ERROR ("nothing to program");
- return ERROR_NAND_OPERATION_FAILED;
+ if (oob_size % 2) {
+ LOG_ERROR(data_block_size_err_msg, oob_size);
+ return ERROR_NAND_OPERATION_FAILED;
}
- {
- /*
- * validate target state
- */
- int retval;
- retval = validate_target_state (nand);
- if (retval != ERROR_OK)
- {
- return retval;
- }
+ if (!data) {
+ LOG_ERROR("nothing to program");
+ return ERROR_NAND_OPERATION_FAILED;
}
{
- int retval = ERROR_OK;
- retval |= imx31_command(nand, NAND_CMD_SEQIN);
- retval |= imx31_address(nand, 0x00);
- retval |= imx31_address(nand, page & 0xff);
- retval |= imx31_address(nand, (page >> 8) & 0xff);
- if (nand->address_cycles >= 4)
- {
- retval |= imx31_address (nand, (page >> 16) & 0xff);
- if (nand->address_cycles >= 5)
- {
- retval |= imx31_address (nand, (page >> 24) & 0xff);
- }
- }
- target_write_buffer (target, MX3_NF_MAIN_BUFFER0, data_size, data);
- if (oob)
- {
- if (mx3_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, MX3_NF_SPARE_BUFFER0, oob_size,
- oob);
- }
- /*
- * start data input operation (set MX3_NF_BIT_OP_DONE==0)
- */
- target_write_u16 (target, MX3_NF_CFG2, MX3_NF_BIT_OP_FDI);
- {
- int poll_result;
- poll_result = poll_for_complete_op (target, "data input");
- if (poll_result != ERROR_OK)
- {
- return poll_result;
+ /*
+ * validate target state
+ */
+ int retval;
+ retval = validate_target_state(nand);
+ if (retval != ERROR_OK)
+ return retval;
+ }
+ {
+ int retval = ERROR_OK;
+ retval |= imx31_command(nand, NAND_CMD_SEQIN);
+ retval |= imx31_address(nand, 0x00);
+ retval |= imx31_address(nand, page & 0xff);
+ retval |= imx31_address(nand, (page >> 8) & 0xff);
+ if (nand->address_cycles >= 4) {
+ retval |= imx31_address(nand, (page >> 16) & 0xff);
+ if (nand->address_cycles >= 5)
+ retval |= imx31_address(nand, (page >> 24) & 0xff);
}
- }
- retval |= imx31_command (nand, NAND_CMD_PAGEPROG);
- if (retval != ERROR_OK)
- {
- return retval;
- }
-
- /*
- * check status register
- */
- {
- uint16_t nand_status_content;
- retval = ERROR_OK;
- retval |= imx31_command(nand, NAND_CMD_STATUS);
- retval |= imx31_address(nand, 0x00);
- retval |= do_data_output(nand);
- if (retval != ERROR_OK)
+ target_write_buffer(target, MX3_NF_MAIN_BUFFER0, data_size, data);
+ if (oob) {
+ if (mx3_nf_info->flags.hw_ecc_enabled) {
+ /*
+ * part of spare block will be overridden by hardware
+ * ECC generator
+ */
+ LOG_DEBUG("part of spare block will be overridden by hardware ECC generator");
+ }
+ target_write_buffer(target, MX3_NF_SPARE_BUFFER0, oob_size, oob);
+ }
+ /*
+ * start data input operation (set MX3_NF_BIT_OP_DONE==0)
+ */
+ target_write_u16(target, MX3_NF_CFG2, MX3_NF_BIT_OP_FDI);
{
- LOG_ERROR (get_status_register_err_msg);
- return retval;
+ int poll_result;
+ poll_result = poll_for_complete_op(target, "data input");
+ if (poll_result != ERROR_OK)
+ return poll_result;
}
- target_read_u16 (target, MX3_NF_MAIN_BUFFER0, &nand_status_content);
- if (nand_status_content & 0x0001)
+ retval |= imx31_command(nand, NAND_CMD_PAGEPROG);
+ if (retval != ERROR_OK)
+ return retval;
+
+ /*
+ * check status register
+ */
{
- /*
- * is host-big-endian correctly ??
- */
- return ERROR_NAND_OPERATION_FAILED;
+ uint16_t nand_status_content;
+ retval = ERROR_OK;
+ retval |= imx31_command(nand, NAND_CMD_STATUS);
+ retval |= imx31_address(nand, 0x00);
+ retval |= do_data_output(nand);
+ if (retval != ERROR_OK) {
+ LOG_ERROR(get_status_register_err_msg);
+ return retval;
+ }
+ target_read_u16(target, MX3_NF_MAIN_BUFFER0, &nand_status_content);
+ if (nand_status_content & 0x0001) {
+ /*
+ * is host-big-endian correctly ??
+ */
+ return ERROR_NAND_OPERATION_FAILED;
+ }
}
}
- }
return ERROR_OK;
}
-static int imx31_read_page (struct nand_device *nand, uint32_t page,
- uint8_t * data, uint32_t data_size, uint8_t * oob,
- uint32_t oob_size)
+static int imx31_read_page(struct nand_device *nand, uint32_t page,
+ uint8_t *data, uint32_t data_size, uint8_t *oob,
+ uint32_t oob_size)
{
- struct mx3_nf_controller *mx3_nf_info = nand->controller_priv;
- struct target *target = mx3_nf_info->target;
+ struct target *target = nand->target;
- if (data_size % 2)
- {
- LOG_ERROR (data_block_size_err_msg, data_size);
- return ERROR_NAND_OPERATION_FAILED;
+ if (data_size % 2) {
+ LOG_ERROR(data_block_size_err_msg, data_size);
+ return ERROR_NAND_OPERATION_FAILED;
}
- if (oob_size % 2)
- {
- LOG_ERROR (data_block_size_err_msg, oob_size);
- return ERROR_NAND_OPERATION_FAILED;
+ if (oob_size % 2) {
+ LOG_ERROR(data_block_size_err_msg, oob_size);
+ return ERROR_NAND_OPERATION_FAILED;
}
{
- /*
- * validate target state
- */
- int retval;
- retval = validate_target_state(nand);
- if (retval != ERROR_OK)
- {
- return retval;
- }
- }
- {
- int retval = ERROR_OK;
- retval |= imx31_command(nand, NAND_CMD_READ0);
- retval |= imx31_address(nand, 0x00);
- retval |= imx31_address(nand, page & 0xff);
- retval |= imx31_address(nand, (page >> 8) & 0xff);
- if (nand->address_cycles >= 4)
- {
- retval |= imx31_address(nand, (page >> 16) & 0xff);
- if (nand->address_cycles >= 5)
- {
- retval |= imx31_address(nand, (page >> 24) & 0xff);
- retval |= imx31_command(nand, NAND_CMD_READSTART);
- }
- }
- retval |= do_data_output (nand);
- if (retval != ERROR_OK)
- {
- return retval;
- }
-
- if (data)
- {
- target_read_buffer (target, MX3_NF_MAIN_BUFFER0, data_size,
- data);
- }
- if (oob)
- {
- target_read_buffer (target, MX3_NF_SPARE_BUFFER0, oob_size,
- oob);
- }
+ /*
+ * validate target state
+ */
+ int retval;
+ retval = validate_target_state(nand);
+ if (retval != ERROR_OK)
+ return retval;
+ }
+ {
+ int retval = ERROR_OK;
+ retval |= imx31_command(nand, NAND_CMD_READ0);
+ retval |= imx31_address(nand, 0x00);
+ retval |= imx31_address(nand, page & 0xff);
+ retval |= imx31_address(nand, (page >> 8) & 0xff);
+ if (nand->address_cycles >= 4) {
+ retval |= imx31_address(nand, (page >> 16) & 0xff);
+ if (nand->address_cycles >= 5) {
+ retval |= imx31_address(nand, (page >> 24) & 0xff);
+ retval |= imx31_command(nand, NAND_CMD_READSTART);
+ }
+ }
+ retval |= do_data_output(nand);
+ if (retval != ERROR_OK)
+ return retval;
+
+ if (data) {
+ target_read_buffer(target, MX3_NF_MAIN_BUFFER0, data_size,
+ data);
+ }
+ if (oob) {
+ target_read_buffer(target, MX3_NF_SPARE_BUFFER0, oob_size,
+ oob);
+ }
}
return ERROR_OK;
}
-static int test_iomux_settings (struct target * target, uint32_t address,
- uint32_t mask, const char *text)
+static int test_iomux_settings(struct target *target, uint32_t address,
+ uint32_t mask, const char *text)
{
uint32_t register_content;
- target_read_u32 (target, address, ®ister_content);
- if ((register_content & mask) != (0x12121212 & mask))
- {
- LOG_ERROR ("IOMUX for {%s} is bad", text);
- return ERROR_FAIL;
+ target_read_u32(target, address, ®ister_content);
+ if ((register_content & mask) != (0x12121212 & mask)) {
+ LOG_ERROR("IOMUX for {%s} is bad", text);
+ return ERROR_FAIL;
}
return ERROR_OK;
}
-static int initialize_nf_controller (struct nand_device *nand)
+static int initialize_nf_controller(struct nand_device *nand)
{
struct mx3_nf_controller *mx3_nf_info = nand->controller_priv;
- struct target *target = mx3_nf_info->target;
+ struct target *target = nand->target;
/*
- * resets NAND flash controller in zero time ? I dont know.
+ * resets NAND flash controller in zero time ? I don't know.
*/
- target_write_u16 (target, MX3_NF_CFG1, MX3_NF_BIT_RESET_EN);
+ target_write_u16(target, MX3_NF_CFG1, MX3_NF_BIT_RESET_EN);
{
- uint16_t work_mode;
- work_mode = MX3_NF_BIT_INT_DIS; /* disable interrupt */
- if (target->endianness == TARGET_BIG_ENDIAN)
- {
- work_mode |= MX3_NF_BIT_BE_EN;
- }
- if (mx3_nf_info->flags.hw_ecc_enabled)
- {
- work_mode |= MX3_NF_BIT_ECC_EN;
- }
- target_write_u16 (target, MX3_NF_CFG1, work_mode);
+ uint16_t work_mode;
+ work_mode = MX3_NF_BIT_INT_DIS; /* disable interrupt */
+ if (target->endianness == TARGET_BIG_ENDIAN)
+ work_mode |= MX3_NF_BIT_BE_EN;
+ if (mx3_nf_info->flags.hw_ecc_enabled)
+ work_mode |= MX3_NF_BIT_ECC_EN;
+ target_write_u16(target, MX3_NF_CFG1, work_mode);
}
/*
* unlock SRAM buffer for write; 2 mean "Unlock", other values means "Lock"
*/
- target_write_u16 (target, MX3_NF_BUFCFG, 2);
+ target_write_u16(target, MX3_NF_BUFCFG, 2);
{
- uint16_t temp;
- target_read_u16 (target, MX3_NF_FWP, &temp);
- if ((temp & 0x0007) == 1)
- {
- LOG_ERROR ("NAND flash is tight-locked, reset needed");
- return ERROR_FAIL;
- }
+ uint16_t temp;
+ target_read_u16(target, MX3_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, MX3_NF_FWP, 4);
- target_write_u16 (target, MX3_NF_LOCKSTART, 0x0000);
- target_write_u16 (target, MX3_NF_LOCKEND, 0xFFFF);
+ target_write_u16(target, MX3_NF_FWP, 4);
+ target_write_u16(target, MX3_NF_LOCKSTART, 0x0000);
+ target_write_u16(target, MX3_NF_LOCKEND, 0xFFFF);
/*
* 0x0000 means that first SRAM buffer @0xB800_0000 will be used
*/
- target_write_u16 (target, MX3_NF_BUFADDR, 0x0000);
+ target_write_u16(target, MX3_NF_BUFADDR, 0x0000);
/*
* address of SRAM buffer
*/
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 target *target, uint8_t *value)
{
- static uint8_t even_byte = 0;
+ static uint8_t even_byte;
/*
* host-big_endian ??
*/
if (sign_of_sequental_byte_read == 0)
- {
- even_byte = 0;
- }
- if (in_sram_address > MX3_NF_LAST_BUFFER_ADDR)
- {
- LOG_ERROR (sram_buffer_bounds_err_msg, in_sram_address);
- *value = 0;
- sign_of_sequental_byte_read = 0;
- even_byte = 0;
- return ERROR_NAND_OPERATION_FAILED;
- }
- else
- {
- uint16_t temp;
- target_read_u16 (target, in_sram_address, &temp);
- if (even_byte)
- {
- *value = temp >> 8;
- even_byte = 0;
- in_sram_address += 2;
- }
- else
- {
- *value = temp & 0xff;
- even_byte = 1;
+ even_byte = 0;
+ if (in_sram_address > MX3_NF_LAST_BUFFER_ADDR) {
+ LOG_ERROR(sram_buffer_bounds_err_msg, in_sram_address);
+ *value = 0;
+ sign_of_sequental_byte_read = 0;
+ even_byte = 0;
+ return ERROR_NAND_OPERATION_FAILED;
+ } else {
+ uint16_t temp;
+ target_read_u16(target, in_sram_address, &temp);
+ if (even_byte) {
+ *value = temp >> 8;
+ even_byte = 0;
+ in_sram_address += 2;
+ } else {
+ *value = temp & 0xff;
+ even_byte = 1;
}
}
sign_of_sequental_byte_read = 1;
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 target *target,
+ uint16_t *value)
{
- if (in_sram_address > MX3_NF_LAST_BUFFER_ADDR)
- {
- LOG_ERROR (sram_buffer_bounds_err_msg, in_sram_address);
- *value = 0;
- return ERROR_NAND_OPERATION_FAILED;
- }
- else
- {
- target_read_u16 (target, in_sram_address, value);
- in_sram_address += 2;
+ if (in_sram_address > MX3_NF_LAST_BUFFER_ADDR) {
+ LOG_ERROR(sram_buffer_bounds_err_msg, in_sram_address);
+ *value = 0;
+ return ERROR_NAND_OPERATION_FAILED;
+ } else {
+ target_read_u16(target, in_sram_address, value);
+ in_sram_address += 2;
}
return ERROR_OK;
}
-static int poll_for_complete_op (struct target * target, const char *text)
+static int poll_for_complete_op(struct target *target, const char *text)
{
uint16_t poll_complete_status;
- for (int poll_cycle_count = 0; poll_cycle_count < 100; poll_cycle_count++)
- {
- usleep (25);
- target_read_u16 (target, MX3_NF_CFG2, &poll_complete_status);
- if (poll_complete_status & MX3_NF_BIT_OP_DONE)
- {
- break;
- }
+ for (int poll_cycle_count = 0; poll_cycle_count < 100; poll_cycle_count++) {
+ usleep(25);
+ target_read_u16(target, MX3_NF_CFG2, &poll_complete_status);
+ if (poll_complete_status & MX3_NF_BIT_OP_DONE)
+ break;
}
- if (!(poll_complete_status & MX3_NF_BIT_OP_DONE))
- {
- LOG_ERROR ("%s sending timeout", text);
- return ERROR_NAND_OPERATION_FAILED;
+ if (!(poll_complete_status & MX3_NF_BIT_OP_DONE)) {
+ LOG_ERROR("%s sending timeout", text);
+ return ERROR_NAND_OPERATION_FAILED;
}
return ERROR_OK;
}
-static int validate_target_state (struct nand_device *nand)
+static int validate_target_state(struct nand_device *nand)
{
struct mx3_nf_controller *mx3_nf_info = nand->controller_priv;
- struct target *target = mx3_nf_info->target;
+ struct target *target = nand->target;
- if (target->state != TARGET_HALTED)
- {
- LOG_ERROR (target_not_halted_err_msg);
- return ERROR_NAND_OPERATION_FAILED;
+ if (target->state != TARGET_HALTED) {
+ LOG_ERROR(target_not_halted_err_msg);
+ return ERROR_NAND_OPERATION_FAILED;
}
if (mx3_nf_info->flags.target_little_endian !=
- (target->endianness == TARGET_LITTLE_ENDIAN))
- {
- /*
- * endianness changed after NAND controller probed
- */
- return ERROR_NAND_OPERATION_FAILED;
+ (target->endianness == TARGET_LITTLE_ENDIAN)) {
+ /*
+ * endianness changed after NAND controller probed
+ */
+ return ERROR_NAND_OPERATION_FAILED;
}
return ERROR_OK;
}
-static int do_data_output (struct nand_device *nand)
+static int do_data_output(struct nand_device *nand)
{
struct mx3_nf_controller *mx3_nf_info = nand->controller_priv;
- struct target *target = mx3_nf_info->target;
- switch (mx3_nf_info->fin)
- {
- case MX3_NF_FIN_DATAOUT:
- /*
- * start data output operation (set MX3_NF_BIT_OP_DONE==0)
- */
- target_write_u16 (target, MX3_NF_CFG2,
- MX3_NF_BIT_DATAOUT_TYPE (mx3_nf_info->
- optype));
- {
- int poll_result;
- poll_result = poll_for_complete_op (target, "data output");
- if (poll_result != ERROR_OK)
+ struct target *target = nand->target;
+ switch (mx3_nf_info->fin) {
+ case MX3_NF_FIN_DATAOUT:
+ /*
+ * start data output operation (set MX3_NF_BIT_OP_DONE==0)
+ */
+ target_write_u16 (target, MX3_NF_CFG2,
+ MX3_NF_BIT_DATAOUT_TYPE(mx3_nf_info->optype));
{
- return poll_result;
+ int poll_result;
+ poll_result = poll_for_complete_op(target, "data output");
+ if (poll_result != ERROR_OK)
+ return poll_result;
}
- }
- mx3_nf_info->fin = MX3_NF_FIN_NONE;
- /*
- * ECC stuff
- */
- if ((mx3_nf_info->optype == MX3_NF_DATAOUT_PAGE)
- && mx3_nf_info->flags.hw_ecc_enabled)
- {
- uint16_t ecc_status;
- target_read_u16 (target, MX3_NF_ECCSTATUS, &ecc_status);
- switch (ecc_status & 0x000c)
- {
+ mx3_nf_info->fin = MX3_NF_FIN_NONE;
+ /*
+ * ECC stuff
+ */
+ if ((mx3_nf_info->optype == MX3_NF_DATAOUT_PAGE)
+ && mx3_nf_info->flags.hw_ecc_enabled) {
+ uint16_t ecc_status;
+ target_read_u16 (target, MX3_NF_ECCSTATUS, &ecc_status);
+ switch (ecc_status & 0x000c) {
case 1 << 2:
- LOG_DEBUG
- ("main area readed with 1 (correctable) error");
- break;
+ LOG_DEBUG("main area read with 1 (correctable) error");
+ break;
case 2 << 2:
- LOG_DEBUG
- ("main area readed with more than 1 (incorrectable) error");
- return ERROR_NAND_OPERATION_FAILED;
- break;
- }
- switch (ecc_status & 0x0003)
- {
+ LOG_DEBUG("main area read with more than 1 (incorrectable) error");
+ return ERROR_NAND_OPERATION_FAILED;
+ }
+ switch (ecc_status & 0x0003) {
case 1:
- LOG_DEBUG
- ("spare area readed with 1 (correctable) error");
- break;
+ LOG_DEBUG("spare area read with 1 (correctable) error");
+ break;
case 2:
- LOG_DEBUG
- ("main area readed with more than 1 (incorrectable) error");
- return ERROR_NAND_OPERATION_FAILED;
- break;
- }
- }
- break;
- case MX3_NF_FIN_NONE:
- break;
+ LOG_DEBUG("main area read with more than 1 (incorrectable) error");
+ return ERROR_NAND_OPERATION_FAILED;
+ }
+ }
+ break;
+ case MX3_NF_FIN_NONE:
+ break;
}
return ERROR_OK;
}
struct nand_flash_controller imx31_nand_flash_controller = {
- .name = "imx31",
- .nand_device_command = &imx31_nand_device_command,
- .init = &imx31_init,
- .reset = &imx31_reset,
- .command = &imx31_command,
- .address = &imx31_address,
- .write_data = &imx31_write_data,
- .read_data = &imx31_read_data,
- .write_page = &imx31_write_page,
- .read_page = &imx31_read_page,
- .controller_ready = &imx31_controller_ready,
- .nand_ready = &imx31_nand_ready,
- };
+ .name = "imx31",
+ .usage = "nand device imx31 target noecc|hwecc",
+ .nand_device_command = &imx31_nand_device_command,
+ .init = &imx31_init,
+ .reset = &imx31_reset,
+ .command = &imx31_command,
+ .address = &imx31_address,
+ .write_data = &imx31_write_data,
+ .read_data = &imx31_read_data,
+ .write_page = &imx31_write_page,
+ .read_page = &imx31_read_page,
+ .nand_ready = &imx31_nand_ready,
+};
projects / fw / openocd / blobdiff