From mboxrd@z Thu Jan 1 00:00:00 1970 From: York Sun Date: Tue, 22 Jul 2014 14:31:04 -0700 Subject: [U-Boot] [RFC PATCH] Fix bug in T4240QDS code. Don't access nonexistent registers In-Reply-To: <53CED4AB.6070607@freescale.com> References: <1402929678-7496-1-git-send-email-vvv444@gmail.com> <53CED4AB.6070607@freescale.com> Message-ID: <53CED818.70301@freescale.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Shaohui, Never mind. You sent the patch already http://patchwork.ozlabs.org/patch/364807/. York On 07/22/2014 02:16 PM, York Sun wrote: > This patch points out a bug in T4240QDS code. But the fix is not correct. > > Shaohui, please take a closer look and submit a patch to fix it. I believe the > code should check each Bank of each SerDes (totally 8 clocks). > > Thanks Vasili for pointing out. > > York > > > On 06/16/2014 07:41 AM, Vasili Galka wrote: >> The code in misc_init_r() verifies actual SERDES clocks versus >> expected. It supposes that the number of clocks is MAX_SERDES. >> However, the number of pllcr0 registers is only SRDS_MAX_BANK. This >> clearly results in access to wrong memory. I don't have the datasheet >> to design a correct solution, but at least let's change it to access >> only the existing registers. >> >> Signed-off-by: Vasili Galka >> Cc: York Sun >> --- >> board/freescale/t4qds/t4240qds.c | 2 +- >> 1 files changed, 1 insertions(+), 1 deletions(-) >> >> diff --git a/board/freescale/t4qds/t4240qds.c b/board/freescale/t4qds/t4240qds.c >> index fe1bc7f..6646042 100644 >> --- a/board/freescale/t4qds/t4240qds.c >> +++ b/board/freescale/t4qds/t4240qds.c >> @@ -662,7 +662,7 @@ int misc_init_r(void) >> } >> } >> >> - for (i = 0; i < MAX_SERDES; i++) { >> + for (i = 0; i < SRDS_MAX_BANK; i++) { >> u32 pllcr0 = srds_regs->bank[i].pllcr0; >> u32 expected = pllcr0 & SRDS_PLLCR0_RFCK_SEL_MASK; >> if (expected != actual[i]) { >> > > _______________________________________________ > U-Boot mailing list > U-Boot at lists.denx.de > http://lists.denx.de/mailman/listinfo/u-boot >