From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rick Chen Date: Thu, 10 Dec 2020 11:06:20 +0800 Subject: [PATCH] riscv: timer: Add support for an early timer In-Reply-To: References: <20201117110508.25819-1-pragnesh.patel@sifive.com> <752D002CFF5D0F4FA35C0100F1D73F3FB23051F0@ATCPCS16.andestech.com> Message-ID: List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hi Pragnesh > Hi Rick, > > [...] > >> > >>Following are the configurations, steps and debug logs: > >> > >>+++ b/configs/ae350_rv64_defconfig > >>q+CONFIG_TRACE=y > >>+CONFIG_TRACE_BUFFER_SIZE=0x01000000 > >>+CONFIG_TRACE_CALL_DEPTH_LIMIT=15 > >>+CONFIG_CMD_TRACE=y > >>+CONFIG_TIMER_EARLY=y > >> > >>+++ b/configs/ae350_rv64_spl_defconfig > >>+CONFIG_TRACE=y > >>+CONFIG_TRACE_BUFFER_SIZE=0x01000000 > >>+CONFIG_TRACE_CALL_DEPTH_LIMIT=15 > >>+CONFIG_CMD_TRACE=y > >>+CONFIG_TIMER_EARLY=y > >> > >>//////////////////////////////////////////////// case 1 > >>/////////////////////////////////////////////////// > >>ae350_rv64_defconfig with FTRACE=1, kernel booting is ok > >>//////////////////////////////////////////////// case 1 > >>/////////////////////////////////////////////////// > >>make FTRACE=1 ae350_rv64_defconfig > >>make FTRACE=1 > >>/////////////////////////////////////////////////////////////////////// > [...] > >>//////////////////////////////////////////////// case 2 > >>/////////////////////////////////////////////////// > >>ae350_rv64_spl_defconfig with FTRACE=1, kernel booting fail > >>//////////////////////////////////////////////// case 2 > >>/////////////////////////////////////////////////// > >>make FTRACE=1 ae350_rv64_spl_defconfig > >>make FTRACE=1 > >>/////////////////////////////////////////////////////////////////////// > >>/////////////// > >>///////////////////////// > [...] > >>(hang here) > > > >Thanks for the logs. > > > >From logs, I can't find where it got stuck. Can you please use gdb to see where it > >got stuck ? > > > >Meanwhile I will give it a try on HiFive Unleashed board. > > On HiFive Unleashed it works fine with tracing. > > U-Boot 2021.01-rc2-00049-gb2a38d1d0f (Dec 01 2020 - 15:04:41 +0530) > CPU: rv64imafdc > Model: SiFive HiFive Unleashed A00 > DRAM: 8 GiB > trace: enabled > MMC: spi at 10050000:mmc at 0: 0 > Loading Environment from SPIFlash... SF: Detected is25wp256 with page size 256 Bytes, erase size 4 KiB, total 32 MiB > *** Warning - bad CRC, using default environment > In: serial at 10010000 > Out: serial at 10010000 > Err: serial at 10010000 > Net: eth0: ethernet at 10090000 > Hit any key to stop autoboot: 0 > => > => trace stats > 178,750 function sites > 25,359,991 function calls > 1 untracked function calls > 1,278,927 traced function calls (24358307 dropped due to overflow) > 19 maximum observed call depth > 15 call depth limit > 25,238,922 calls not traced due to depth > => fatload mmc 0:3 0x86000000 hifive-unleashed-a00.dtb > 7199 bytes read in 27 ms (259.8 KiB/s) > => fatload mmc 0:3 0x84000000 uImage > 21421212 bytes read in 19496 ms (1 MiB/s) > => bootm 0x84000000 - 0x86000000 > ## Booting kernel from Legacy Image at 84000000 ... > Image Name: Linux > Image Type: RISC-V Linux Kernel Image (uncompressed) > Data Size: 21421148 Bytes = 20.4 MiB > Load Address: 80200000 > Entry Point: 80200000 > Verifying Checksum ... OK > ## Flattened Device Tree blob at 86000000 > Booting using the fdt blob at 0x86000000 > Loading Kernel Image > Using Device Tree in place at 0000000086000000, end 0000000086004c1e > Starting kernel ...(fake run for tracing) > Starting kernel ... > [ 0.000000] OF: fdt: Ignoring memory range 0x80000000 - 0x80200000 > [ 0.000000] Linux version 5.8.0-rc3-16077-g9ebcfadb0610-dirty (pragneshp at sachinj2-OptiPlex-7010) (riscv64-unknown-linux-gnu-gcc (crosstool-NG 1.24.0.37-3f461da) 9.2.0, GNU ld (crosstool-NG 1.24.0.37-3f461da) 2.32) #34 SMP Tue Jul 21 15:56:29 IST 2020 > [ 0.000000] initrd not found or empty - disabling initrd > [ 0.000000] Zone ranges: > [ 0.000000] DMA32 [mem 0x0000000080200000-0x00000000ffffffff] > [ 0.000000] Normal [mem 0x0000000100000000-0x000000027fffffff] > [ 0.000000] Movable zone start for each node > [ 0.000000] Early memory node ranges > [ 0.000000] node 0: [mem 0x0000000080200000-0x000000027fffffff] > [ 0.000000] Initmem setup node 0 [mem 0x0000000080200000-0x000000027fffffff] > .... > Welcome to Buildroot > buildroot login: root > Password: > Please check about the CI failure item Job #95.56 https://travis-ci.org/github/rickchen36/u-boot-riscv/jobs/748298543 Thanks, Rick