Implement basic SPIFI block driver for the LPC43xx (doesn't work)
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4938 42af7a65-404d-4744-a932-0658087f49c3
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patacongo
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@ -867,3 +867,25 @@ Where <subdir> is one of the following:
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CONFIG_BOOT_SRAM=y : Executing in SRAM
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CONFIG_LPC32_CODEREDW=y : Code Red under Windows
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This configuration has some special options that can be used to
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create a block device on the SPIFI FLASH:
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CONFIG_SPIFI_BLKDRVR - Enable to create a block driver on the SPFI
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device.
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CONFIG_SPIFI_DEVNO - SPIFI minor device number. The SPFI device will
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be at /dev/ramN, where N is the value of CONFIG_SPIFI_DEVNO.
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Default: 0.
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CONFIG_SPIFI_RDONLY - Create a read only device on SPIFI.
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CONFIG_SPIFI_OFFSET - Offset the beginning of the block driver this
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many bytes into the device address space. Default 0.
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CONFIG_SPIFI_BLKSIZE - The size of one block. SPIFI is not block
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oriented, so most any size of the block used in the SPIFI block
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device can be used. NOTE: FAT will support only sector sizes of
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512, 1024, 2048, or 4096. Default: 512
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CONFIG_SPIFI_NBLOCKS - The number of blocks in the file system,
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each of size CONFIG_SPIFI_BLKSIZE. The end of the file system
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will be at device offset:
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CONFIG_SPIFI_OFFSET + CONFIG_SPIFI_BLKSIZE*CONFIG_SPIFI_NBLOCKS
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The must assure that this does offset does not go beyond the end
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of the FLASH memory.
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@ -381,6 +381,7 @@ CONFIG_DEBUG=n
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CONFIG_DEBUG_VERBOSE=n
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CONFIG_DEBUG_SYMBOLS=n
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CONFIG_DEBUG_SCHED=n
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CONFIG_DEBUG_FS=n
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CONFIG_HAVE_CXX=n
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CONFIG_HAVE_CXXINITIALIZE=n
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@ -657,6 +658,35 @@ CONFIG_MMCSD_MMCSUPPORT=n
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CONFIG_MMCSD_HAVECARDDETECT=n
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#
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# This configuration has some special options that can be used to
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# create a block device on the SPIFI FLASH:
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#
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# CONFIG_SPIFI_BLKDRVR - Enable to create a block driver on the SPFI
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# device.
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# CONFIG_SPIFI_DEVNO - SPIFI minor device number. The SPFI device will
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# be at /dev/rdN, where N is the value of CONFIG_SPIFI_DEVNO.
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# Default: 0.
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# CONFIG_SPIFI_RDONLY - Create a read only device on SPIFI.
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# CONFIG_SPIFI_OFFSET - Offset the beginning of the block driver this
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# many bytes into the device address space. Default 0.
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# CONFIG_SPIFI_BLKSIZE - The size of one block. SPIFI is not block
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# oriented, so most any size of the block used in the SPIFI block
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# device can be used. NOTE: FAT will support only sector sizes of 512,
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# 1024, 2048, or 4096. Default: 512
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# CONFIG_SPIFI_NBLOCKS - The number of blocks in the file system,
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# each of size CONFIG_SPIFI_BLKSIZE. The end of the file system
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# will be at device offset:
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# CONFIG_SPIFI_OFFSET + CONFIG_SPIFI_BLKSIZE*CONFIG_SPIFI_NBLOCKS
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# The must assure that this does offset does not go beyond the end
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# of the FLASH memory.
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#
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CONFIG_SPIFI_BLKDRVR=n
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CONFIG_SPIFI_DEVNO=0
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CONFIG_SPIFI_RDONLY=n
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CONFIG_SPIFI_OFFSET=0
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CONFIG_SPIFI_BLKSIZE=512
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CONFIG_SPIFI_NBLOCKS=(1024*1024/512)
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# TCP/IP and UDP support via uIP
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# CONFIG_NET - Enable or disable all network features
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# CONFIG_NET_IPv6 - Build in support for IPv6
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@ -866,6 +896,7 @@ CONFIG_EXAMPLE_UIP_DHCPC=n
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#
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# Settings for examples/nettest
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#
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CONFIG_EXAMPLE_NETTEST_SERVER=n
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CONFIG_EXAMPLE_NETTEST_PERFORMANCE=n
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CONFIG_EXAMPLE_NETTEST_NOMAC=n
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@ -44,14 +44,21 @@
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#include <debug.h>
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#include <errno.h>
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#include <nuttx/spi.h>
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#include <nuttx/mmcsd.h>
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/* This should be removed someday when we are confident in SPIFI */
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#ifdef CONFIG_DEBUG_FS
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# include "up_arch.h"
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# include "chip/lpc43_cgu.h"
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# include "chip/lpc43_ccu.h"
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#endif
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#include "chip.h"
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#include <nuttx/ramdisk.h>
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/****************************************************************************
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* Pre-Processor Definitions
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****************************************************************************/
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/* Configuration ************************************************************/
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/* USB Configuration ********************************************************/
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/* PORT and SLOT number probably depend on the board configuration */
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@ -68,6 +75,43 @@
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# undef CONFIG_NSH_HAVEUSBDEV
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#endif
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/* SPIFI Configuration ******************************************************/
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/* CONFIG_SPIFI_BLKDRVR - Enable to create a block driver on the SPFI device.
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* CONFIG_SPIFI_DEVNO - SPIFI minor device number. The SPFI device will be
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* at /dev/ramN, where N is the value of CONFIG_SPIFI_DEVNO. Default: 0.
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* CONFIG_SPIFI_RDONLY - Create a read only device on SPIFI.
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* CONFIG_SPIFI_OFFSET - Offset the beginning of the block driver this many
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* bytes into the device address space. Default 0.
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* CONFIG_SPIFI_BLKSIZE - The size of one block. SPIFI is not block oriented,
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* so most any size of the block used in the SPIFI block device can be
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* used. NOTE: FAT will support only sector sizes of 512, 1024, 2048, or
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* 4096. Default: 512
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* CONFIG_SPIFI_NBLOCKS - The number of blocks in the file system, each of
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* size CONFIG_SPIFI_BLKSIZE. The end of the file system will be at
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* device offset:
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* CONFIG_SPIFI_OFFSET + CONFIG_SPIFI_BLKSIZE*CONFIG_SPIFI_NBLOCKS
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* The must assure that this does offset does not go beyond the end of
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* the FLASH memory.
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*/
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#ifdef CONFIG_SPIFI_BLKDRVR
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# ifndef CONFIG_SPIFI_DEVNO
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# define CONFIG_SPIFI_DEVNO 0
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# endif
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# ifndef CONFIG_SPIFI_OFFSET
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# define CONFIG_SPIFI_OFFSET 0
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# endif
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# ifndef CONFIG_SPIFI_BLKSIZE
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# define CONFIG_SPIFI_BLKSIZE 512
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# endif
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# ifndef CONFIG_SPIFI_NBLOCKS
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# error "Need number of SPIFI blocks (CONFIG_SPIFI_NBLOCKS)"
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# endif
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#endif
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#define SPIFI_BUFFER \
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(FAR uint8_t *)(LPC43_LOCSRAM_SPIFI_BASE + CONFIG_SPIFI_OFFSET)
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/* Debug ********************************************************************/
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#ifdef CONFIG_CPP_HAVE_VARARGS
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@ -84,6 +128,61 @@
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# endif
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#endif
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: nsh_spifi_initialize
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*
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* Description:
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* Make the SPIFI (or part of it) into a block driver that can hold a
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* file system.
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*
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* SPIFI AHB register clock:
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* Base clock = BASE_M4_CLK
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* Branch clock = CLK_M4_SPIFI
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* SPIFI serial clock input:
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* Base clock = BASE_SPIFI_CLK
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* Branch clock = SPIFI_CLK
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*
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****************************************************************************/
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#ifdef CONFIG_SPIFI_BLKDRVR
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static int nsh_spifi_initialize(void)
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{
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/* This should be removed someday when we are confident in SPIFI */
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#ifdef CONFIG_DEBUG_FS
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fdbg("BASE_SPIFI_CLK=%08x\n",
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getreg32(LPC43_BASE_SPIFI_CLK));
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fdbg("SPFI CFG=%08x STAT=%08x\n",
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getreg32(LPC43_CCU1_SPIFI_CFG), getreg32(LPC43_CCU1_SPIFI_STAT));
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fdbg("M4 SPFI CFG=%08x STAT=%08x\n",
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getreg32(LPC43_CCU1_M4_SPIFI_CFG), getreg32(LPC43_CCU1_M4_SPIFI_STAT));
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#endif
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#ifdef CONFIG_SPIFI_RDONLY
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/* Register a read-only SPIFI RAM disk at /dev/ramN, where N is the
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* value of CONFIG_SPIFI_DEVNO.
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*/
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return romdisk_register(CONFIG_SPIFI_DEVNO, SPIFI_BUFFER,
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CONFIG_SPIFI_NBLOCKS, CONFIG_SPIFI_BLKSIZE);
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#else
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/* Register a write-able SPIFI RAM disk at /dev/ramN, where N is the
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* value of CONFIG_SPIFI_DEVNO.
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*/
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return ramdisk_register(CONFIG_SPIFI_DEVNO, SPIFI_BUFFER,
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CONFIG_SPIFI_NBLOCKS, CONFIG_SPIFI_BLKSIZE,
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true);
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#endif
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}
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#else
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# define nsh_spifi_initialize() (OK)
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#endif
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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@ -98,5 +197,7 @@
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int nsh_archinitialize(void)
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{
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return OK;
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/* Initialize the SPIFI block device */
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return nsh_spifi_initialize();
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}
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