Custom u-boot with SHARC firmware for SC589

Hi pierre, we also have some issue in saving env in your usecase, the current workaround is to program the env statically in u-boot source code. will give update on this once we have progress on it.

Hi Aaron,

Did you success in creation of a u-boot.ldr that contains u-boot + sharc code.

I try many times, but still got an error (don't boot, no core1 firmware, and so on).

Maybe something magic with elfloader.exe

regards

pierre

Hi pierre,

I believe yes, just to double confirm if you have explicility start SHARC, before able to see it is running.

command "icc enable 1" from u-boot is used to start SHARC, also may need to add "enable_sec=no" in the kernel boot commandline.

Below is an example patch that we customerize the u-boot environment, it's verified to work when runing Linux on ARM and some bare-metal code on SHARC, by booting u-boot and SHARC together with romcode.

diff --git a/include/configs/sc_adi_common.h b/include/configs/sc_adi_common.h
index eecb86b..c769eb6 100644
--- a/include/configs/sc_adi_common.h
+++ b/include/configs/sc_adi_common.h
@@ -93,7 +93,7 @@
 # if (CONFIG_SC_BOOT_MODE == SC_BOOT_UART)
 #  define CONFIG_BOOTDELAY -1
 # else
-#  define CONFIG_BOOTDELAY 5
+#  define CONFIG_BOOTDELAY 0
 # endif
 #endif
 
@@ -103,8 +103,9 @@
 # define CONFIG_BOOTARGS_VIDEO ""
 #endif
 
-#define CONFIG_BOOTCOMMAND "run ramboot"
+#define CONFIG_BOOTCOMMAND "run sdboot"
 #define CONFIG_BOOTARGS_ROOT "/dev/mtdblock2 rw"
+#define CONFIG_SD_BOOTARGS_ROOT "/dev/mmcblk0p1 rw rootwait"
 
 #define CONFIG_BOOTARGS \
  "root=" CONFIG_BOOTARGS_ROOT " " \
@@ -112,9 +113,19 @@
  "clkin_hz=" __stringify(CONFIG_CLKIN_HZ) " " \
  CONFIG_BOOTARGS_VIDEO \
  "earlyprintk=serial,uart0,57600 " \
+ "enable_sec=no " \
  "console=ttySC" __stringify(CONFIG_UART_CONSOLE) "," \
    __stringify(CONFIG_BAUDRATE) " "\
   "mem=" CONFIG_LINUX_MEMSIZE
+#define CONFIG_SD_BOOTARGS \
+  "root=" CONFIG_SD_BOOTARGS_ROOT " " \
+  "rootfstype=ext3 " \
+  "clkin_hz=" __stringify(CONFIG_CLKIN_HZ) " " \
+  "earlyprintk " \
+  "enable_sec=no" \
+  CONFIG_BOOTARGS_VIDEO \
+  "console=ttySC" __stringify(CONFIG_UART_CONSOLE) "," \
+   __stringify(CONFIG_BAUDRATE) " "\
 
 #if defined(CONFIG_CMD_NET)
 # define UBOOT_ENV_FILE "u-boot.ldr"
@@ -158,6 +169,7 @@
  "dtbfile=" CONFIG_DTBNAME "\0" \
  "dtbaddr=" CONFIG_DTBLOADADDR "\0" \
  "ramargs=set bootargs " CONFIG_BOOTARGS "\0" \
+ "sdargs=set bootargs " CONFIG_SD_BOOTARGS "\0" \
  "ramboot=" \
   "tftp ${loadaddr} ${ramfile};" \
   "tftp ${dtbaddr} ${dtbfile};" \
@@ -166,6 +178,15 @@
   "bootm ${loadaddr} - ${dtbaddr}" \
   "\0" \
  \
+ "sdboot=" \
+  "ext2load mmc 0:1 0xc6000000 sc589-ezkit.dtb;" \
+  "ext2load mmc 0:1 0xc2000000 uImage;" \
+  "icc enable 1;" \
+  "dhcp;" \
+  "run addip;" \
+  "bootm ${loadaddr} - ${dtbaddr}" \
+  "\0" \
+ \
  "nfsfile=vmImage\0" \
  "nfsargs=set bootargs " \
   "root=/dev/nfs rw " \
--

Regards

Aaron

Hi,

From this post it seems like it is only possible to load SHARC program with using either ROM loader or JTAG.

I would like to know if it is possible to postpone the SHARC code loading (now at SoC ROM boot code) and do it under u-boot or Linux?

Another question - is the SHARC ROM loading procedure described somewhere?

Thanks in advance for reply,

Łukasz

At the end I success to have an uboot containint boot code + core1 and core 2 code.

The issue is that it's not possible to change something in flash from uboot. It crashes everything.

This not fix my furutre problem.

I need to be able to dynamically change Core1 and core 2 firmware from my linux program (in core 0).

And I still don't know how to reprogram core 1 and 2 from a simple file.

Regards

pierre

Hi,

pypardo wrote:

At the end I success to have an uboot containint boot code + core1 and core 2 code.

The issue is that it's not possible to change something in flash from uboot. It crashes everything.

Do you mean the QSPI memory (SPI2) flash/erase is causing this problems?

 

This not fix my furutre problem.

I need to be able to dynamically change Core1 and core 2 firmware from my linux program (in core 0).

And I still don't know how to reprogram core 1 and 2 from a simple file.

Yes, I'm also interested in such a feature - but in u-boot not Linux.

 

Regards

 

pierre

Best regards,

Łukasz

Dear Mr wu:

can you see problem : adsp-sc573 MAC only support RGMII or RMII? ,   we are urgent to know it, thank you very much!

Dear Mr wu:

can you see question : adsp-sc573 MAC only support RGMII or RMII? ,   we are urgent to know it, thank you very much!