disk/part.c: Make features optional

If we don't want to build support for any partition types we can now
add #undef CONFIG_PARTITIONS in a board config file to keep this from
being compiled in. Otherwise boards assume this is compiled in by
default

Signed-off-by: Matthew McClintock <msm@freescale.com>

common/cmd_ide.c

@@ -719,10 +719,12 @@ void ide_init (void)
 
 /* ------------------------------------------------------------------------- */
 
+#ifdef CONFIG_PARTITIONS
 block_dev_desc_t * ide_get_dev(int dev)
 {
 	return (dev < CONFIG_SYS_IDE_MAXDEVICE) ? &ide_dev_desc[dev] : NULL;
 }
+#endif
 
 
 #ifdef CONFIG_IDE_8xx_DIRECT

common/cmd_sata.c

@@ -57,10 +57,12 @@ int __sata_initialize(void)
 }
 int sata_initialize(void) __attribute__((weak,alias("__sata_initialize")));
 
+#ifdef CONFIG_PARTITIONS
 block_dev_desc_t *sata_get_dev(int dev)
 {
 	return (dev < CONFIG_SYS_SATA_MAX_DEVICE) ? &sata_dev_desc[dev] : NULL;
 }
+#endif
 
 int do_sata(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {

common/cmd_scsi.c

@@ -194,11 +194,12 @@ void scsi_init(void)
 }
 #endif
 
+#ifdef CONFIG_PARTITIONS
 block_dev_desc_t * scsi_get_dev(int dev)
 {
 	return (dev < CONFIG_SYS_SCSI_MAX_DEVICE) ? &scsi_dev_desc[dev] : NULL;
 }
-
+#endif
 
 /******************************************************************************
  * scsi boot command intepreter. Derived from diskboot

common/usb_storage.c

@@ -173,11 +173,12 @@ unsigned long usb_stor_write(int device, unsigned long blknr,
 struct usb_device * usb_get_dev_index(int index);
 void uhci_show_temp_int_td(void);
 
+#ifdef CONFIG_PARTITIONS
 block_dev_desc_t *usb_stor_get_dev(int index)
 {
 	return (index < usb_max_devs) ? &usb_dev_desc[index] : NULL;
 }
-
+#endif
 
 void usb_show_progress(void)
 {

disk/Makefile

@@ -27,7 +27,7 @@ include $(TOPDIR)/config.mk
 
 LIB	= $(obj)libdisk.o
 
-COBJS-y += part.o
+COBJS-$(CONFIG_PARTITIONS) 	+= part.o
 COBJS-$(CONFIG_MAC_PARTITION)   += part_mac.o
 COBJS-$(CONFIG_DOS_PARTITION)   += part_dos.o
 COBJS-$(CONFIG_ISO_PARTITION)   += part_iso.o

drivers/block/mg_disk.c

@@ -522,10 +522,12 @@ mg_write_exit:
 	return err;
 }
 
+#ifdef CONFIG_PARTITIONS
 block_dev_desc_t *mg_disk_get_dev(int dev)
 {
 	return ((block_dev_desc_t *) & mg_disk_dev);
 }
+#endif
 
 /* must override this function */
 struct mg_drv_data * __attribute__((weak)) mg_get_drv_data (void)

drivers/block/systemace.c

@@ -104,6 +104,7 @@ static void release_cf_lock(void)
 	ace_writew((val & 0xffff), 0x18);
 }
 
+#ifdef CONFIG_PARTITIONS
 block_dev_desc_t *systemace_get_dev(int dev)
 {
 	/* The first time through this, the systemace_dev object is
@@ -128,6 +129,7 @@ block_dev_desc_t *systemace_get_dev(int dev)
 
 	return &systemace_dev;
 }
+#endif
 
 /*
  * This function is called (by dereferencing the block_read pointer in

drivers/mmc/mmc.c

@@ -1167,12 +1167,14 @@ int mmc_register(struct mmc *mmc)
 	return 0;
 }
 
+#ifdef CONFIG_PARTITIONS
 block_dev_desc_t *mmc_get_dev(int dev)
 {
 	struct mmc *mmc = find_mmc_device(dev);
 
 	return mmc ? &mmc->block_dev : NULL;
 }
+#endif
 
 int mmc_init(struct mmc *mmc)
 {

include/config_defaults.h

@@ -16,5 +16,6 @@
 
 #define CONFIG_GZIP 1
 #define CONFIG_ZLIB 1
+#define CONFIG_PARTITIONS 1
 
 #endif

include/part.h

@@ -96,6 +96,7 @@ typedef struct disk_partition {
 } disk_partition_t;
 
 /* Misc _get_dev functions */
+#ifdef CONFIG_PARTITIONS
 block_dev_desc_t* get_dev(char* ifname, int dev);
 block_dev_desc_t* ide_get_dev(int dev);
 block_dev_desc_t* sata_get_dev(int dev);
@@ -110,7 +111,22 @@ int get_partition_info (block_dev_desc_t * dev_desc, int part, disk_partition_t
 void print_part (block_dev_desc_t *dev_desc);
 void  init_part (block_dev_desc_t *dev_desc);
 void dev_print(block_dev_desc_t *dev_desc);
-
+#else
+static inline block_dev_desc_t* get_dev(char* ifname, int dev) { return NULL; }
+static inline block_dev_desc_t* ide_get_dev(int dev) { return NULL; }
+static inline block_dev_desc_t* sata_get_dev(int dev) { return NULL; }
+static inline block_dev_desc_t* scsi_get_dev(int dev) { return NULL; }
+static inline block_dev_desc_t* usb_stor_get_dev(int dev) { return NULL; }
+static inline block_dev_desc_t* mmc_get_dev(int dev) { return NULL; }
+static inline block_dev_desc_t* systemace_get_dev(int dev) { return NULL; }
+static inline block_dev_desc_t* mg_disk_get_dev(int dev) { return NULL; }
+
+static inline int get_partition_info (block_dev_desc_t * dev_desc, int part,
+	disk_partition_t *info) { return -1; }
+static inline void print_part (block_dev_desc_t *dev_desc) {}
+static inline void  init_part (block_dev_desc_t *dev_desc) {}
+static inline void dev_print(block_dev_desc_t *dev_desc) {}
+#endif
 
 #ifdef CONFIG_MAC_PARTITION
 /* disk/part_mac.c */