[U-Boot] [PATCH 1/5][v4] powerpc/mpc85xx:No NOR boot, do not compile IFC errata A003399
IFC errata A003399 is valid for IFC NOR boot i.e.if no on-board NOR flash or no NOR boot, do not compile its workaround.
Signed-off-by: Prabhakar Kushwaha prabhakar@freescale.com --- Based upon git://git.denx.de/u-boot.git branch master Changes for v2: - Add CONFIG_A003399_NOR_WORKAROUND for errata workaround - Add CONFIG_A003399_NOR_WORKAROUND in README Changes for v3: - Use only CONFIG_A003399_NOR_WORKAROUND for errata workaround Changes for v4: Sending as it is
README | 4 ++++ arch/powerpc/cpu/mpc85xx/cpu_init_early.c | 6 +++--- arch/powerpc/cpu/mpc8xxx/fsl_ifc.c | 2 +- 3 files changed, 8 insertions(+), 4 deletions(-)
diff --git a/README b/README index 67a071f..f06a60b 100644 --- a/README +++ b/README @@ -414,6 +414,10 @@ The following options need to be configured: See Freescale App Note 4493 for more information about this erratum.
+ CONFIG_A003399_NOR_WORKAROUND + Enables a workaround for IFC erratum A003399. It is only + requred during NOR boot. + CONFIG_SYS_FSL_CORENET_SNOOPVEC_COREONLY
This is the value to write into CCSR offset 0x18600 diff --git a/arch/powerpc/cpu/mpc85xx/cpu_init_early.c b/arch/powerpc/cpu/mpc85xx/cpu_init_early.c index dacfdd1..439a873 100644 --- a/arch/powerpc/cpu/mpc85xx/cpu_init_early.c +++ b/arch/powerpc/cpu/mpc85xx/cpu_init_early.c @@ -25,7 +25,7 @@
DECLARE_GLOBAL_DATA_PTR;
-#if defined(CONFIG_SYS_FSL_ERRATUM_IFC_A003399) && !defined(CONFIG_SYS_RAMBOOT) +#ifdef CONFIG_A003399_NOR_WORKAROUND void setup_ifc(void) { struct fsl_ifc *ifc_regs = (void *)CONFIG_SYS_IFC_ADDR; @@ -99,7 +99,7 @@ void cpu_init_early_f(void) #ifdef CONFIG_SYS_FSL_ERRATUM_P1010_A003549 ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); #endif -#if defined(CONFIG_SYS_FSL_ERRATUM_IFC_A003399) && !defined(CONFIG_SYS_RAMBOOT) +#ifdef CONFIG_A003399_NOR_WORKAROUND ccsr_l2cache_t *l2cache = (void *)CONFIG_SYS_MPC85xx_L2_ADDR; u32 *dst, *src; void (*setup_ifc_sram)(void); @@ -138,7 +138,7 @@ void cpu_init_early_f(void) * Work Around for IFC Erratum A003399, issue will hit only when execution * from NOR Flash */ -#if defined(CONFIG_SYS_FSL_ERRATUM_IFC_A003399) && !defined(CONFIG_SYS_RAMBOOT) +#ifdef CONFIG_A003399_NOR_WORKAROUND #define SRAM_BASE_ADDR (0x00000000) /* TLB for SRAM */ mas0 = MAS0_TLBSEL(1) | MAS0_ESEL(9); diff --git a/arch/powerpc/cpu/mpc8xxx/fsl_ifc.c b/arch/powerpc/cpu/mpc8xxx/fsl_ifc.c index 56b319f..959a0e2 100644 --- a/arch/powerpc/cpu/mpc8xxx/fsl_ifc.c +++ b/arch/powerpc/cpu/mpc8xxx/fsl_ifc.c @@ -43,7 +43,7 @@ void init_early_memctl_regs(void) set_ifc_ftim(IFC_CS0, IFC_FTIM2, CONFIG_SYS_CS0_FTIM2); set_ifc_ftim(IFC_CS0, IFC_FTIM3, CONFIG_SYS_CS0_FTIM3);
-#if !defined(CONFIG_SYS_FSL_ERRATUM_IFC_A003399) || defined(CONFIG_SYS_RAMBOOT) +#ifndef CONFIG_A003399_NOR_WORKAROUND #ifdef CONFIG_SYS_CSPR0_EXT set_ifc_cspr_ext(IFC_CS0, CONFIG_SYS_CSPR0_EXT); #endif
On 04/15/2013 05:12:48 AM, Prabhakar Kushwaha wrote:
diff --git a/arch/powerpc/cpu/mpc85xx/cpu_init_early.c b/arch/powerpc/cpu/mpc85xx/cpu_init_early.c index dacfdd1..439a873 100644 --- a/arch/powerpc/cpu/mpc85xx/cpu_init_early.c +++ b/arch/powerpc/cpu/mpc85xx/cpu_init_early.c @@ -25,7 +25,7 @@
DECLARE_GLOBAL_DATA_PTR;
-#if defined(CONFIG_SYS_FSL_ERRATUM_IFC_A003399) && !defined(CONFIG_SYS_RAMBOOT) +#ifdef CONFIG_A003399_NOR_WORKAROUND
Won't this break bisectability since you don't define CONFIG_A003399_NOR_WORKAROUND until a later patch?
-Scott
On 04/16/2013 03:11 AM, Scott Wood wrote:
On 04/15/2013 05:12:48 AM, Prabhakar Kushwaha wrote:
diff --git a/arch/powerpc/cpu/mpc85xx/cpu_init_early.c b/arch/powerpc/cpu/mpc85xx/cpu_init_early.c index dacfdd1..439a873 100644 --- a/arch/powerpc/cpu/mpc85xx/cpu_init_early.c +++ b/arch/powerpc/cpu/mpc85xx/cpu_init_early.c @@ -25,7 +25,7 @@
DECLARE_GLOBAL_DATA_PTR;
-#if defined(CONFIG_SYS_FSL_ERRATUM_IFC_A003399) && !defined(CONFIG_SYS_RAMBOOT) +#ifdef CONFIG_A003399_NOR_WORKAROUND
Won't this break bisectability since you don't define CONFIG_A003399_NOR_WORKAROUND until a later patch?
This workaround is only required for P1010. so for other SoC it should not be defined. For P1010 it is defined in P10101RDB.h also all patches of a patch set should be applied at once.
may be I am unable to understand the question.
Regards, Prabhakar
On 04/16/2013 09:49 AM, Prabhakar Kushwaha wrote:
On 04/16/2013 03:11 AM, Scott Wood wrote:
On 04/15/2013 05:12:48 AM, Prabhakar Kushwaha wrote:
diff --git a/arch/powerpc/cpu/mpc85xx/cpu_init_early.c b/arch/powerpc/cpu/mpc85xx/cpu_init_early.c index dacfdd1..439a873 100644 --- a/arch/powerpc/cpu/mpc85xx/cpu_init_early.c +++ b/arch/powerpc/cpu/mpc85xx/cpu_init_early.c @@ -25,7 +25,7 @@
DECLARE_GLOBAL_DATA_PTR;
-#if defined(CONFIG_SYS_FSL_ERRATUM_IFC_A003399) && !defined(CONFIG_SYS_RAMBOOT) +#ifdef CONFIG_A003399_NOR_WORKAROUND
Won't this break bisectability since you don't define CONFIG_A003399_NOR_WORKAROUND until a later patch?
This workaround is only required for P1010. so for other SoC it should not be defined. For P1010 it is defined in P10101RDB.h also all patches of a patch set should be applied at once.
may be I am unable to understand the question.
is it related to bisectability feature of git? in that case there can be 2 possible solutions a) change the patch set sequence b) combine patch. but changes are in arch/powerpc/ and boards files. will it be right to combine together?
Please suggest!!
Regards, Prabhakar
On 04/15/2013 11:19:55 PM, Prabhakar Kushwaha wrote:
On 04/16/2013 03:11 AM, Scott Wood wrote:
On 04/15/2013 05:12:48 AM, Prabhakar Kushwaha wrote:
diff --git a/arch/powerpc/cpu/mpc85xx/cpu_init_early.c b/arch/powerpc/cpu/mpc85xx/cpu_init_early.c index dacfdd1..439a873 100644 --- a/arch/powerpc/cpu/mpc85xx/cpu_init_early.c +++ b/arch/powerpc/cpu/mpc85xx/cpu_init_early.c @@ -25,7 +25,7 @@
DECLARE_GLOBAL_DATA_PTR;
-#if defined(CONFIG_SYS_FSL_ERRATUM_IFC_A003399) && !defined(CONFIG_SYS_RAMBOOT) +#ifdef CONFIG_A003399_NOR_WORKAROUND
Won't this break bisectability since you don't define CONFIG_A003399_NOR_WORKAROUND until a later patch?
This workaround is only required for P1010. so for other SoC it should not be defined. For P1010 it is defined in P10101RDB.h also all patches of a patch set should be applied at once.
may be I am unable to understand the question.
My point is you should have P1010 define this symbol before you change the code here to expect it. Otherwise, P1010 will be broken for two commits and break bisectability.
-Scott
participants (2)
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Prabhakar Kushwaha -
Scott Wood