bc10/rowboat

Summary

The previous section has argued what are the requirements for the build process of rowboat-eclair-dsp. It has showed
how to obtained the mandatory files and explained why the kernel update is required. This section introduces the DSP
stack and explains how to integrate the DSP stack with rowboat-eclair-dsp.

SGX and DSP integration, the DSP stack

Build

Execute the command below, and build the Android kernel, which is integrated with DSP and the userland.

$ make TARGET_PRODUCT=beagleboard BUILD_WITH_GST=true dvsdk

Fixing build errors

Since the kernel version is updated to 2.6.32, some errors occur as DSP stack is integrated. The locations of errors,
error message and how to fix these errors are discussed. To use diff -u command, the differences between the original
and the fixed code are compared. However, this section does not provide the farther explanations of how and why these
errors happen.

1. external/ti-dsp/dvsdk_3_00_02_44/dsplink_1_61_03/packages/dsplink/gpp/src/arch/OMAP3530/shmem/Linux/omap3530_phy_shmem.c

~/rowboat-eclair-dsp/external/ti-dsp/dvsdk_3_00_02_44/dsplink_1_61_03/packages/dsplink/gpp/src/../../gpp/src/arch/OMAP3530/shmem/Linux/omap3530_phy_shmem.c:131: error: implicit declaration of function 'IO_ADDRESS'
$ diff -u omap3530_phy_shmem.c.orig omap3530_phy_shmem.c
--- omap3530_phy_shmem.c.orig	2010-06-29 20:53:20.341371121 +0900
+++ omap3530_phy_shmem.c	2010-07-05 14:19:04.614552881 +0900
@@ -128,12 +128,12 @@
 
     halObject = (OMAP3530_HalObj *) halObj ;
 
-    halObject->generalCtrlBase = (Uint32)IO_ADDRESS(GENERAL_CONTROL_BASE) ;
-    halObject->iva2CmBase      = (Uint32)IO_ADDRESS(IVA2_CM_BASE) ;
-    halObject->coreCmBase      = (Uint32)IO_ADDRESS(CORE_CM_BASE) ;
-    halObject->perCmBase       = (Uint32)IO_ADDRESS(PER_CM_BASE) ;
-    halObject->iva2PrmBase     = (Uint32)IO_ADDRESS(IVA2_PRM_BASE) ;
-    halObject->mailboxBase     = (Uint32)IO_ADDRESS(MAILBOX_BASE) ;
+    halObject->generalCtrlBase = (Uint32)ioremap(GENERAL_CONTROL_BASE, 4096) ;
+    halObject->iva2CmBase      = (Uint32)ioremap(IVA2_CM_BASE, 8192) ;
+    halObject->coreCmBase      = (Uint32)ioremap(CORE_CM_BASE, 8192) ;
+    halObject->perCmBase       = (Uint32)ioremap(PER_CM_BASE, 8192) ;
+    halObject->iva2PrmBase     = (Uint32)ioremap(IVA2_PRM_BASE, 8192) ;
+    halObject->mailboxBase     = (Uint32)ioremap(MAILBOX_BASE, 4096) ;

2. external/ti-dsp/dvsdk_3_00_02_44/codec_engine_2_24_01/cetools/packages/ti/sdo/linuxutils/cmem/src/module/cmemk.c

~/rowboat-eclair-dsp/external/ti-dsp/dvsdk_3_00_02_44/codec_engine_2_24_01/cetools/packages/ti/sdo/linuxutils/cmem/src/module/cmemk.c:1086: error: 'L_PTE_CACHEABLE' undeclared (first use in this function)
$ diff -u cmemk.c.orig cmemk.c
--- cmemk.c.orig	2010-06-29 21:05:39.718696468 +0900
+++ cmemk.c	2010-07-05 14:28:27.767315616 +0900
@@ -1084,7 +1084,7 @@
 static int set_cached(struct vm_area_struct *vma)
 {
     vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) |
-                                 (L_PTE_CACHEABLE | L_PTE_BUFFERABLE)
+                                 (L_PTE_MT_WRITETHROUGH | L_PTE_MT_BUFFERABLE)
                                 );
 
     vma->vm_flags |= VM_RESERVED | VM_IO;

3. external/ti-dsp/dvsdk_3_00_02_44/codec_engine_2_24_01/cetools/packages/ti/sdo/linuxutils/sdma/src/module/sdmak.c

~/rowboat-eclair-dsp/external/ti-dsp/dvsdk_3_00_02_44/codec_engine_2_24_01/cetools/packages/ti/sdo/linuxutils/sdma/src/module/sdmak.c:45:22: error: mach/dma.h: No such file or directory
$ diff -u sdmak.c.orig sdmak.c
--- sdmak.c.orig	2010-06-29 21:13:45.434697722 +0900
+++ sdmak.c	2010-06-29 21:22:33.300049114 +0900
@@ -42,8 +42,8 @@
 #include <asm/arch/tc.h>
 #else
 #include <mach/hardware.h>
-#include <mach/dma.h>
-#include <mach/tc.h>
+#include <plat/dma.h>
+#include <linux/tc.h>
 #endif
 
 /*

4. external/ti-dsp/dvsdk_3_00_02_44/dmai_2_00_01_04/packages/ti/sdo/dmai/linux/Display_fbdev.c

linux/Display_fbdev.c:45:29: error: mach/omapfb.h: No such file or directory
diff -u Display_fbdev.c.orig Display_fbdev.c
--- Display_fbdev.c.orig	2010-06-29 21:48:52.347886578 +0900
+++ Display_fbdev.c	2010-06-29 21:46:37.214483328 +0900
@@ -42,7 +42,7 @@
 #include <linux/fb.h>
 
 #ifdef Dmai_Device_omap3530
-    #include <mach/omapfb.h>
+    #include <linux/omapfb.h>
 #else
 //    #include <video/davincifb.h>
 #endif

5. external/ti-dsp/dvsdk_3_00_02_44/dmai_2_00_01_04/packages/ti/sdo/dmai/Makefile

~/rowboat-eclair-dsp/kernel/include/asm-generic/signal.h:94: error:'__BITS_PER_LONG' undeclared here (not in a function)
$ diff -u Makefile.orig Makefile
--- Makefile.orig	2010-06-29 22:01:32.699753968 +0900
+++ Makefile	2010-06-29 22:12:20.791781379 +0900
@@ -103,7 +103,7 @@
 
 CPP_FLAGS	+= -I$(XDC_INSTALL_DIR)/packages -I$(DMAI_INSTALL_DIR)/packages -I$(CE_INSTALL_DIR)/packages -I$(FC_INSTALL_DIR)/packages -I$(XDAIS_INSTALL_DIR)/packages -DDmai_Device_$(PLATFORM_DEVICE)
 
-GCC_CPP_FLAGS	+= $(CPP_FLAGS) -I$(LINUXKERNEL_INSTALL_DIR)/include -I$(LINUXKERNEL_INSTALL_DIR)/arch/arm/$(PLATFORM_ARCH)/include $(HAVE_AUTOCONFIG) -I$(CMEM_INSTALL_DIR)/packages -I$(LINK_INSTALL_DIR)/packages -DDmai_BuildOs_linux -Dxdc_target_types__=gnu/targets/std.h -I$(LINUXLIBS_INSTALL_DIR)/include -Dxdc_target_name__=arm/GCArmv7A
+GCC_CPP_FLAGS	+= $(CPP_FLAGS) -I$(LINUXKERNEL_INSTALL_DIR)/arch/arm/$(PLATFORM_ARCH)/include $(HAVE_AUTOCONFIG) -I$(CMEM_INSTALL_DIR)/packages -I$(LINK_INSTALL_DIR)/packages -DDmai_BuildOs_linux -Dxdc_target_types__=gnu/targets/std.h -I$(LINUXLIBS_INSTALL_DIR)/include -Dxdc_target_name__=arm/GCArmv7A
 C64P_CPP_FLAGS	+= $(CPP_FLAGS) -I$(BIOS_INSTALL_DIR)/packages/ti/bios/include -I$(BIOS_INSTALL_DIR)/packages -DDmai_BuildOs_bios -Dxdc_target__='<ti/targets/std.h>' -I$(CODEGEN_INSTALL_DIR)/include -mv6400+ -pdse225 -eo$(PLATFORM_DEVICE).o$(EXT)
 
 #GCC_C_FLAGS	+= $(C_FLAGS) -Wall -Werror $(ANDROID_CFLAGS)

6. external/ti-dsp/dvsdk_3_00_02_44/dmai_2_00_01_04/packages/ti/sdo/dmai/Makefile

linux/omap3530/Framecopy_accel.c:51:32: error: linux/omap_resizer.h: No such file or directory

include path that has changed at 5 returns to the original.

$ diff -u Makefile.modified Makefile
--- Makefile.modified	2010-06-29 22:12:20.791781379 +0900
+++ Makefile	2010-06-29 22:01:32.699753968 +0900
@@ -103,7 +103,7 @@
 
 CPP_FLAGS	+= -I$(XDC_INSTALL_DIR)/packages -I$(DMAI_INSTALL_DIR)/packages -I$(CE_INSTALL_DIR)/packages -I$(FC_INSTALL_DIR)/packages -I$(XDAIS_INSTALL_DIR)/packages -DDmai_Device_$(PLATFORM_DEVICE)
 
-GCC_CPP_FLAGS	+= $(CPP_FLAGS) -I$(LINUXKERNEL_INSTALL_DIR)/arch/arm/$(PLATFORM_ARCH)/include $(HAVE_AUTOCONFIG) -I$(CMEM_INSTALL_DIR)/packages -I$(LINK_INSTALL_DIR)/packages -DDmai_BuildOs_linux -Dxdc_target_types__=gnu/targets/std.h -I$(LINUXLIBS_INSTALL_DIR)/include -Dxdc_target_name__=arm/GCArmv7A
+GCC_CPP_FLAGS	+= $(CPP_FLAGS) -I$(LINUXKERNEL_INSTALL_DIR)/include -I$(LINUXKERNEL_INSTALL_DIR)/arch/arm/$(PLATFORM_ARCH)/include $(HAVE_AUTOCONFIG) -I$(CMEM_INSTALL_DIR)/packages -I$(LINK_INSTALL_DIR)/packages -DDmai_BuildOs_linux -Dxdc_target_types__=gnu/targets/std.h -I$(LINUXLIBS_INSTALL_DIR)/include -Dxdc_target_name__=arm/GCArmv7A
 C64P_CPP_FLAGS	+= $(CPP_FLAGS) -I$(BIOS_INSTALL_DIR)/packages/ti/bios/include -I$(BIOS_INSTALL_DIR)/packages -DDmai_BuildOs_bios -Dxdc_target__='<ti/targets/std.h>' -I$(CODEGEN_INSTALL_DIR)/include -mv6400+ -pdse225 -eo$(PLATFORM_DEVICE).o$(EXT)
 
 #GCC_C_FLAGS	+= $(C_FLAGS) -Wall -Werror $(ANDROID_CFLAGS)

The adjustments for avoiding the errors that occurs during/after booting

Because of the adjustments shown above, the build process is successfully completed. Now, fix the errors that happens
during/dafter boot process is finished.

1. cmemk
After a kernel module is loaded, the error message, cmemk: Unknown symbol init_mm, appears, and does go farther.
This is how to fix this error.

First, parts of config in kernel is rearranged.

$ cd source buid/envsetup.sh
$ cd kernel
$ make menuconfig

Select Kernel hacking, chooses Enable unused/obsolete exported symbols, and make it effective, and save it. To use
make clean command, delete the files that have been already built and put under the kernel directory. After the
adjustments, rebuild these files.

external/ti-dsp/dvsdk_3_00_02_44/codec_engine_2_24_01/cetools/packages/ti/sdo/linuxutils/cmem/src/module/cmemk.c

$ diff -u cmemk.c.orig cmemk.c
--- cmemk.c.orig	2010-06-29 21:05:39.718696468 +0900
+++ cmemk.c	2010-07-05 14:27:31.782329823 +0900
@@ -1026,10 +1026,10 @@
 void show_pte(struct mm_struct *mm, unsigned long addr)
 {
         pgd_t *pgd;
- 
+#if 0
         if (!mm)
                 mm = &init_mm;
-
+#endif
         printk(KERN_ALERT "pgd = %p\n", mm->pgd);
         pgd = pgd_offset(mm, addr);
         printk(KERN_ALERT "[%08lx] *pgd=%08lx", addr, pgd_val(*pgd));
@@ -1084,7 +1084,7 @@
 static int set_cached(struct vm_area_struct *vma)
 {
     vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) |
-                                 (L_PTE_CACHEABLE | L_PTE_BUFFERABLE)
+                                 (L_PTE_MT_WRITETHROUGH | L_PTE_MT_BUFFERABLE)
                                 );

external/ti-dsp/dvsdk_3_00_02_44/linuxutils_2_24_02/packages/ti/sdo/linuxutils/cmem/src/module/cmemk.c

$ diff -u cmemk.c.orig cmemk.c
--- cmemk.c.orig	2010-07-01 19:58:23.436891292 +0900
+++ cmemk.c	2010-07-01 19:59:01.642238507 +0900
@@ -1026,10 +1026,10 @@
 void show_pte(struct mm_struct *mm, unsigned long addr)
 {
         pgd_t *pgd;
-
+#if 0
         if (!mm)
                 mm = &init_mm;
-
+#endif
         printk(KERN_ALERT "pgd = %p\n", mm->pgd);
         pgd = pgd_offset(mm, addr);
         printk(KERN_ALERT "[%08lx] *pgd=%08lx", addr, pgd_val(*pgd));

2. DMAI
DMAI (DaVinci Multimedia Aplication Interface) does not work under the default setting of OMAP2/3 Display Subsystem,
which is a part of omap kernel. Make the default configuration of Display.c of DMAI ineffective.

external/ti-dsp/dvsdk_3_00_02_44/dmai_2_00_01_04/packages/ti/sdo/dmai/linux/Display.c

$ diff -u Display.c.orig Display.c
--- Display.c.orig	2010-07-05 16:23:35.693115944 +0900
+++ Display.c	2010-07-01 20:13:28.761149734 +0900
@@ -523,6 +523,7 @@
                     Char* displayDevice, VideoStd_Type *videoType,
                     Int *rotation)
 {
+#if 0
 /* #ifdef Dmai_Device_omap3530 */   
     FsOptionsSequence *sequence = NULL;
     Display_Output  currentDisplayOutput;

The changes described above are added, then execute build.

$ make TARGET_PRODUCT=beagleboard BUILD_WITH_GST=true dvsdk

Build of DSP stack from the beginning, follow the direction shown below.

$ make TARGET_PRODUCT=beagleboard BUILD_WITH_GST=true dvsdk_clean
$ make TARGET_PRODUCT=beagleboard BUILD_WITH_GST=true dvsdk

For the details of build control, please look at each variables in Makefile.

Creating rootfs

As the build process is completed without errors, rootfs of android is moved to bootable position.

$ cd out/target/product/beagleboad
$ mkdir android_rootfs
$ cp -r root/* android_rootfs
$ cp -r system android_rootfs

Network configuration

To be booted into rowboat, change the configuration of android rootfs for making network usable.

The configuration file is set up for each device, and the name of a configuration file can be initi.***.rc.
The name of device is only used as it is listed on Hardware of /proc/cpuinfo. If a name is consist of more
than two words, only the first word is valid, and it is written in small letters. Since bc10 is a clone of
BeagleBoard, it is listed on Hardware as OMAP beagle board, so the file name can be defined as /android_rootfs/init.omap3.rc.
The contents of the file is shown as below.

on boot
    setprop net.dns1 8.8.8.8

service lan-setup /system/etc/init.omap3.sh
    oneshot

DNS server in the configuration shown above is set for Google Public DNS. The configuration is freely changed
for individual network environments. DNS server address of LAN can be altered for own needs.

Create /android_rootfs/system/etc/init.omap3.sh, and the contents of the file is defined as below.

#!/system/bin/sh
 
netcfg eth0 up
netcfg eth0 dhcp

This file enables USB ether to obtain the DHCP address and makes the device work as Android is booted.

To use Wifi, prepare for the readable kernel module, and the firmware file is put in to the right path
such as system/etc/Wireless of android_rootfs. Then, Wifi cannot be controlled from GUI, but it is
capable of data communications.

#!/system/bin/sh
 
insmod /system/lib/modules/rt3070sta.ro
netcfg ra0 up
netcfg ra0 dhcp

Reference


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Last-modified: 2010-08-02 (Mon) 07:37:27 (2998d)