sidk_s5jt200: configure partitions at boot

This commit introduces several Kconfig entries for configurting
partitions and adds a function that configures flash partitions
dynamically at boot time. However, there will be no functional
differences yet unless we turn it on. So, don't worry.

Change-Id: I3f10491c6f0c753b2c874310ebfe70596ce0e3c6
Signed-off-by: Heesub Shin <heesub.shin@samsung.com>

diff --git a/os/arch/arm/src/sidk_s5jt200/Kconfig b/os/arch/arm/src/sidk_s5jt200/Kconfig
index 4140f88..bc6067e 100644 (file)
--- a/os/arch/arm/src/sidk_s5jt200/Kconfig
+++ b/os/arch/arm/src/sidk_s5jt200/Kconfig
@@ -22,4 +22,41 @@ config SIDK_S5JT200_FLASH_PAGE_SIZE
                on the SIDK S5JT200 evaluation board. It can be the
                size of erase unit flash memory supports.
 
+config SIDK_S5JT200_FLASH_MINOR
+       int "Minor number for the FLASH /dev/smart entry"
+       default 0
+       depends on S5J_SFLASH
+       ---help---
+               Sets the minor number for /dev node of the external flash
+               device.
+
+config SIDK_S5JT200_FLASH_PART
+       bool "Enable partition support on FLASH"
+       default n
+       depends on S5J_SFLASH
+       ---help---
+               Enables creation of partitions on the FLASH
+
+config SIDK_S5JT200_FLASH_PART_LIST
+       string "Flash partition size list (in KBytes)"
+       default "8192,"
+       depends on SIDK_S5JT200_FLASH_PART
+       ---help---
+               Comma separated list of partition sizes in KB.
+
+config SIDK_S5JT200_FLASH_PART_TYPE
+       string "Flash partition type list"
+       default "none,"
+       ---help---
+               Comma separated list of partition types that can be
+               one of followings: none, smartfs
+
+config SIDK_S5JT200_FLASH_PART_NAME
+       string "FLash partition name list"
+       default "mx25,"
+       depends on SIDK_S5JT200_FLASH_PART
+       depends on MTD_PARTITION_NAMES
+       ---help---
+               Comma separated list of partition names.
+
 endif

diff --git a/os/arch/arm/src/sidk_s5jt200/src/s5jt200_tash.c b/os/arch/arm/src/sidk_s5jt200/src/s5jt200_tash.c
index ff4c011..7b00351 100644 (file)
--- a/os/arch/arm/src/sidk_s5jt200/src/s5jt200_tash.c
+++ b/os/arch/arm/src/sidk_s5jt200/src/s5jt200_tash.c
@@ -68,6 +68,8 @@
 #include "s5j_rtc.h"
 #include "up_internal.h"
 
+#include <tinyara/fs/mtd.h>
+
 /****************************************************************************
  * Pre-processor Definitions
  ****************************************************************************/
@@ -112,6 +114,86 @@ static void scsc_wpa_ctrl_iface_init(void)
 #endif
 }
 
+static void sidk_s5jt200_configure_partitions(void)
+{
+#if defined(CONFIG_SIDK_S5JT200_FLASH_PART)
+       int partno;
+       int partoffset;
+       const char *parts = CONFIG_SIDK_S5JT200_FLASH_PART_LIST;
+       const char *types = CONFIG_SIDK_S5JT200_FLASH_PART_TYPE;
+#if defined(CONFIG_MTD_PARTITION_NAMES)
+       const char *names = CONFIG_SIDK_S5JT200_FLASH_PART_NAME;
+#endif
+       FAR struct mtd_dev_s *mtd;
+       FAR struct mtd_geometry_s geo;
+
+       mtd = progmem_initialize();
+       if (!mtd) {
+               lldbg("ERROR: progmem_initialize failed\n");
+               return;
+       }
+
+       if (mtd->ioctl(mtd, MTDIOC_GEOMETRY, (unsigned long)&geo) < 0) {
+               lldbg("ERROR: mtd->ioctl failed\n");
+               return;
+       }
+
+       partno = 0;
+       partoffset = 0;
+
+       while (*parts) {
+               FAR struct mtd_dev_s *mtd_part;
+               int partsize;
+
+               partsize = strtoul(parts, NULL, 0) << 10;
+
+               if (partsize < geo.erasesize) {
+                       lldbg("ERROR: Partition size is lesser than erasesize\n");
+                       return;
+               }
+
+               if (partsize % geo.erasesize != 0) {
+                       lldbg("ERROR: Partition size is not multiple of erasesize\n");
+                       return;
+               }
+
+               mtd_part = mtd_partition(mtd, partoffset,
+                                       partsize / geo.erasesize, 0);
+               partoffset += partsize / geo.erasesize;
+
+               if (!mtd_part) {
+                       lldbg("ERROR: failed to create partition.\n");
+                       return;
+               }
+
+#if defined(CONFIG_MTD_SMART) && defined(CONFIG_FS_SMARTFS)
+               if (!strncmp(types, "smartfs,", 8)) {
+                       char partref[4];
+                       sprintf(partref, "p%d", partno);
+                       smart_initialize(CONFIG_SIDK_S5JT200_FLASH_MINOR,
+                                       mtd_part, partref);
+               }
+#endif
+
+#if defined(CONFIG_MTD_PARTITION_NAMES)
+               if (strcmp(names, ""))
+                       mtd_setpartitionname(mtd_part, names);
+
+               while (*names != ',' && *names) names++;
+               if (*names == ',') names++;
+#endif
+
+               while (*parts != ',' && *parts) parts++;
+               if (*parts == ',') parts++;
+
+               while (*types != ',' && *types) types++;
+               if (*types == ',') types++;
+
+               partno++;
+       }
+#endif /* CONFIG_SIDK_S5JT200_FLASH_PART */
+}
+
 /****************************************************************************
  * Name: board_app_initialize
  *
@@ -127,6 +209,8 @@ int board_app_initialize(void)
        FAR struct tm tp;
 #endif
 
+       sidk_s5jt200_configure_partitions();
+
 #ifdef CONFIG_S5J_I2C
        s5j_i2c_register(0);
        s5j_i2c_register(1);