From: Zhang Haijun <b42677@freescale.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 2/2] powerpc/esdhc: hack t4240 host capabilities register for VS33 bit
Date: Wed, 30 Oct 2013 11:52:58 +0800 [thread overview]
Message-ID: <5270829A.60306@freescale.com> (raw)
In-Reply-To: <1383071688.3410.97.camel@snotra.buserror.net>
? 2013/10/30 2:34, Scott Wood ??:
> On Fri, 2013-10-25 at 09:54 +0800, Haijun Zhang wrote:
>> T4240 eSDHC host capabilities reigster should have VS33 bit define.
>> hack the code to add the 3.3 voltage support
>>
>> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
>> Signed-off-by: Haijun Zhang <Haijun.Zhang@freescale.com>
>> ---
>> arch/powerpc/include/asm/config_mpc85xx.h | 1 +
>> drivers/mmc/fsl_esdhc.c | 6 ++++++
>> 2 files changed, 7 insertions(+)
>>
>> diff --git a/arch/powerpc/include/asm/config_mpc85xx.h b/arch/powerpc/include/asm/config_mpc85xx.h
>> index 946ea97..84e79c8 100644
>> --- a/arch/powerpc/include/asm/config_mpc85xx.h
>> +++ b/arch/powerpc/include/asm/config_mpc85xx.h
>> @@ -596,6 +596,7 @@
>> #define CONFIG_SYS_FSL_SRIO_LIODN
>> #define CONFIG_SYS_FSL_USB_DUAL_PHY_ENABLE
>> #define CONFIG_SYS_FSL_USB_INTERNAL_UTMI_PHY
>> +#define CONFIG_SYS_FSL_MMC_HAS_CAPBLT_VS33
>> #define CONFIG_SYS_FSL_ERRATUM_A004468
>> #define CONFIG_SYS_FSL_ERRATUM_A_004934
>> #define CONFIG_SYS_FSL_ERRATUM_A005871
>> diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c
>> index d4c1eef..b8b2907 100644
>> --- a/drivers/mmc/fsl_esdhc.c
>> +++ b/drivers/mmc/fsl_esdhc.c
>> @@ -545,6 +545,12 @@ int fsl_esdhc_initialize(bd_t *bis, struct fsl_esdhc_cfg *cfg)
>> caps = caps & ~(ESDHC_HOSTCAPBLT_SRS |
>> ESDHC_HOSTCAPBLT_VS18 | ESDHC_HOSTCAPBLT_VS30);
>> #endif
>> +
>> +/* T4240 host controller capabilities register should have VS33 bit */
>> +#ifdef CONFIG_SYS_FSL_MMC_HAS_CAPBLT_VS33
>> + caps = caps | ESDHC_HOSTCAPBLT_VS33;
>> +#endif
> Is there an erratum associated with this? Is this that
> t4240qds-specific bug, or a different bug that affects all t4240?
No such relevant errata. I think this capacity missing is also exist on
other T4240 board but not be confirmed.
So, I update this patch to make sure the change only affect T4240QDS.
> -Scott
>
>
--
Thanks & Regards
Haijun.
next prev parent reply other threads:[~2013-10-30 3:52 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-25 1:54 [U-Boot] [PATCH 1/2] esdhc: memset mmc struct before putting into use Haijun Zhang
2013-10-25 1:54 ` [U-Boot] [PATCH 2/2] powerpc/esdhc: hack t4240 host capabilities register for VS33 bit Haijun Zhang
2013-10-25 3:24 ` sun york-R58495
2013-10-29 18:34 ` Scott Wood
2013-10-30 3:52 ` Zhang Haijun [this message]
2013-10-25 16:28 ` [U-Boot] [PATCH 1/2] esdhc: memset mmc struct before putting into use Ryan Barnett
2013-10-28 2:00 ` Zhang Haijun
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