tools: mkimage: Add support for i.MXRT FlexSPI Header

Modify imx8m Flex SPI Configuration Block to work with imxrt.
Add more Flex SPI configuration options to Kconfig.

Signed-off-by: Jesse Taube <Mr.Bossman075@gmail.com>
Tested-by:  Adam Ford <aford173@gmail.com> #imx8mn-beacon

include/imximage.h

@@ -210,33 +210,37 @@ typedef struct {
 	uint8_t datasetup;
 	uint8_t coladdrwidth;
 	uint8_t devcfgenable;
-	uint8_t reserved_2[3];
+	uint8_t deviceModeType;
+	uint16_t waitTimeCfgCommands;
 	uint8_t devmodeseq[4];
-	uint8_t devmodearg[4];
+	uint32_t devmodearg;
 	uint8_t cmd_enable;
-	uint8_t reserved_3[3];
+	uint8_t configModeType[3];
 	uint8_t cmd_seq[16] ;
 	uint8_t cmd_arg[16];
-	uint8_t controllermisc[4];
+	uint32_t controllermisc;
 	uint8_t dev_type;
 	uint8_t sflash_pad;
 	uint8_t serial_clk;
-	uint8_t lut_custom ;
+	uint8_t lut_custom;
-	uint8_t reserved_4[8];
+	uint8_t reserved_2[8];
-	uint8_t sflashA1[4];
+	uint32_t sflashA1;
-	uint8_t sflashA2[4];
+	uint32_t sflashA2;
-	uint8_t sflashB1[4];
+	uint32_t sflashB1;
-	uint8_t sflashB2[4];
+	uint32_t sflashB2;
-	uint8_t cspadover[4];
+	uint32_t cspadover;
-	uint8_t sclkpadover[4];
+	uint32_t sclkpadover;
-	uint8_t datapadover[4];
+	uint32_t datapadover;
-	uint8_t dqspadover[4];
+	uint32_t dqspadover;
-	uint8_t timeout[4];
+	uint32_t timeout;
-	uint8_t commandInt[4];
+	uint32_t commandInt;
-	uint8_t datavalid[4];
+	uint16_t datavalid[2];
-	uint8_t busyoffset[2];
+	uint16_t busyoffset;
-	uint8_t busybitpolarity[2];
+	uint16_t busybitpolarity;
 	uint8_t lut[256];
+	uint8_t lutCustomSeq[48];
+	uint8_t reserved_3[16];
+
 } __attribute__((packed)) fspi_conf;
 
 typedef void (*set_dcd_val_t)(struct imx_header *imxhdr,

tools/Kconfig

@@ -148,6 +148,27 @@ config SERIAL_CLK_FREQUENCY
 	  Chip specific frequency: other value 30MHz
 	  1-30MHz  2-50MHz 3-60MHz 4-75MHz 5-80MHz 6-100MHz 7-133MHz 8-166MHz
 
+config FSPI_COL_ADDR_W
+	hex "Column Address With"
+	default 0x00
+	depends on FSPI_CONF_HEADER
+	help
+	  Default 0. For HyperBus protocol, it is fixed to 3
+
+config FSPI_CONTROLLER_MISC
+	hex "FSPI miscellaneous control"
+	default 0x00000000
+	depends on FSPI_CONF_HEADER
+	help
+	  Default 0. [0x40] Controller Misc Options
+
+config FSPI_FLASH_A1_SIZE
+	hex "Size in bytes of Flash A1"
+	default 0x10000000
+	depends on FSPI_CONF_HEADER
+	help
+	  Size of Flash connected to A1 in bytes
+
 config LUT_CUSTOM_SEQUENCE
 	hex "Enable Custom Look Up Table(LUT) Sequence"
 	default 0x00

tools/imx8mimage.c

@@ -426,36 +426,39 @@ static int generate_fspi_header (int ifd)
 	.read_sample = CONFIG_READ_CLK_SOURCE,
 	.datahold =  0x03,
 	.datasetup = 0x03,
-	.coladdrwidth = 0x00,
+	.coladdrwidth = CONFIG_FSPI_COL_ADDR_W,
 	.devcfgenable = 0x00,
-	.reserved_2 = {0x00, 0x00, 0x00},
+	.deviceModeType = 0x00,
+	.waitTimeCfgCommands = 0x0000,
 	.devmodeseq =  {0x00, 0x00, 0x00, 0x00},
-	.devmodearg =  {0x00, 0x00, 0x00, 0x00},
+	.devmodearg =  0x00000000,
 	.cmd_enable =  0x00,
-	.reserved_3 = {0x00},
+	.configModeType = {0x00},
 	.cmd_seq = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 							0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
 	.cmd_arg = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 							0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
-	.controllermisc = {0x00, 0x00, 0x00, 0x00},
+	.controllermisc = cpu_to_le32(CONFIG_FSPI_CONTROLLER_MISC),
 	.dev_type = CONFIG_DEVICE_TYPE,
 	.sflash_pad = CONFIG_FLASH_PAD_TYPE,
 	.serial_clk = CONFIG_SERIAL_CLK_FREQUENCY,
 	.lut_custom = CONFIG_LUT_CUSTOM_SEQUENCE,
-	.reserved_4 = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+	.reserved_2 = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
-	.sflashA1  =  {0x00, 0x00, 0x00, 0x10},
+	.sflashA1  =  cpu_to_le32(CONFIG_FSPI_FLASH_A1_SIZE),
-	.sflashA2 = {0x00, 0x00, 0x00, 0x00},
+	.sflashA2 = 0x00000000,
-	.sflashB1 = {0x00, 0x00, 0x00, 0x00},
+	.sflashB1 = 0x00000000,
-	.sflashB2 =  {0x00, 0x00, 0x00, 0x00},
+	.sflashB2 = 0x00000000,
-	.cspadover = {0x00, 0x00, 0x00, 0x00},
+	.cspadover = 0x00000000,
-	.sclkpadover = {0x00, 0x00, 0x00, 0x00},
+	.sclkpadover = 0x00000000,
-	.datapadover = {0x00, 0x00, 0x00, 0x00},
+	.datapadover = 0x00000000,
-	.dqspadover = {0x00, 0x00, 0x00, 0x00},
+	.dqspadover = 0x00000000,
-	.timeout =  {0x00, 0x00, 0x00, 0x00},
+	.timeout =  0x00000000,
-	.commandInt = {0x00, 0x00, 0x00, 0x00},
+	.commandInt = 0x00000000,
-	.datavalid  = {0x00, 0x00, 0x00, 0x00},
+	.datavalid  = {0x0000, 0x0000},
-	.busyoffset = {0x00, 0x00},
+	.busyoffset = 0x0000,
-	.busybitpolarity = {0x00, 0x00},
+	.busybitpolarity = 0x0000,
+	.lutCustomSeq = {0x00},
+	.reserved_3 = {0x00}
 	};
 
 	for (val = strtok(lut_str, ","); val; val = strtok(NULL, ",")) {

tools/imximage.c

@@ -908,6 +908,64 @@ int imximage_check_params(struct image_tool_params *params)
 		(params->xflag) || !(strlen(params->imagename));
 }
 
+#ifdef CONFIG_FSPI_CONF_HEADER
+static void generate_fspi_header(int ifd)
+{
+	int i = 0;
+	char *val;
+	char lut_str[] = CONFIG_LUT_SEQUENCE;
+
+	fspi_conf fspi_conf_data = {
+	.tag = {0x46, 0x43, 0x46, 0x42},
+	.version = {0x00, 0x00, 0x01, 0x56},
+	.reserved_1 = {0x00, 0x00, 0x00, 0x00},
+	.read_sample = CONFIG_READ_CLK_SOURCE,
+	.datahold =  0x03,
+	.datasetup = 0x03,
+	.coladdrwidth = CONFIG_FSPI_COL_ADDR_W,
+	.devcfgenable = 0x00,
+	.deviceModeType = 0x00,
+	.waitTimeCfgCommands = 0x0000,
+	.devmodeseq =  {0x00, 0x00, 0x00, 0x00},
+	.devmodearg =  0x00000000,
+	.cmd_enable =  0x00,
+	.configModeType = {0x00},
+	.cmd_seq = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+							0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+	.cmd_arg = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+							0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+	.controllermisc = cpu_to_le32(CONFIG_FSPI_CONTROLLER_MISC),
+	.dev_type = CONFIG_DEVICE_TYPE,
+	.sflash_pad = CONFIG_FLASH_PAD_TYPE,
+	.serial_clk = CONFIG_SERIAL_CLK_FREQUENCY,
+	.lut_custom = CONFIG_LUT_CUSTOM_SEQUENCE,
+	.reserved_2 = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+	.sflashA1  =  cpu_to_le32(CONFIG_FSPI_FLASH_A1_SIZE),
+	.sflashA2 = 0x00000000,
+	.sflashB1 = 0x00000000,
+	.sflashB2 = 0x00000000,
+	.cspadover = 0x00000000,
+	.sclkpadover = 0x00000000,
+	.datapadover = 0x00000000,
+	.dqspadover = 0x00000000,
+	.timeout =  0x00000000,
+	.commandInt = 0x00000000,
+	.datavalid  = {0x0000, 0x0000},
+	.busyoffset = 0x0000,
+	.busybitpolarity = 0x0000,
+	.lutCustomSeq = {0x00},
+	.reserved_3 = {0x00}
+	};
+
+	for (val = strtok(lut_str, ","); val; val = strtok(NULL, ","))
+		fspi_conf_data.lut[i++] = strtoul(val, NULL, 16);
+
+	lseek(ifd, 0, SEEK_CUR);
+	if (write(ifd, &fspi_conf_data, sizeof(fspi_conf_data)) == -1)
+		exit(EXIT_FAILURE);
+}
+#endif
+
 static int imximage_generate(struct image_tool_params *params,
 	struct image_type_params *tparams)
 {
@@ -917,6 +975,11 @@ static int imximage_generate(struct image_tool_params *params,
 	char *datafile = params->datafile;
 	uint32_t pad_len, header_size;
 
+#ifdef CONFIG_FSPI_CONF_HEADER
+	int fspi_fd;
+	char *fspi;
+#endif
+
 	memset(&imximage_header, 0, sizeof(imximage_header));
 
 	/*
@@ -977,6 +1040,20 @@ static int imximage_generate(struct image_tool_params *params,
 
 	pad_len = ROUND(sbuf.st_size, 4096) - sbuf.st_size;
 
+#ifdef CONFIG_FSPI_CONF_HEADER
+	fspi = CONFIG_FSPI_CONF_FILE;
+	fspi_fd = open(fspi, O_RDWR | O_CREAT, S_IRWXU);
+	if (fspi_fd < 0) {
+		fprintf(stderr, "Can't open %s: %s\n",
+			fspi, strerror(errno));
+		exit(EXIT_FAILURE);
+	}
+
+	generate_fspi_header(fspi_fd);
+	close(fspi_fd);
+
+#endif
+
 	return pad_len;
 }