[U-Boot] [PATCH v4 0/8] POST: support for km_arm and mem_regions test definition

This series adds support for POST on the km_arm boards. These boards use a jumper to run some self-tests at the board power-up. There are some adaptations for POST to run on the ARM architecture.
This series defines a new mem_regions POST test. This test also takes place before relocation, but it only tests some regions of the RAM so that it is quicker.
Changes for v2: - added CONFIG_POST_EXTERNAL_WORD_FUNCS to allow to redefine post_word_load/store in the board support file when the proposed functions are not suitable.
Changes for v3: - moved CONFIG_POST_EXTERNAL_WORD_FUNCS to an individual patch - moved memory test configuration for km_arm from post to board code
Changes for v4: - rebased on 2011.09-rc1 - changed a comment in km_arm.h - moved post_word location by 4 bytes because of conflict with bootcounter
Valentin Longchamp (8): POST/arm: adaptations needed for POST on ARM to work POST: allow redefinition of post_word_load/store POST: add post_log_res field for post results in global data POST: make env test flags fetching optional POST: drivers/memory.c coding style cleanup POST: add new memory regions test km_arm: change CONFIG_SYS_TEXT_BASE to end of RAM km_arm: enable POST for these boards
arch/arm/include/asm/global_data.h | 5 + arch/arm/lib/board.c | 2 + arch/blackfin/include/asm/global_data.h | 1 + arch/nios2/include/asm/global_data.h | 1 + arch/powerpc/include/asm/global_data.h | 1 + arch/sparc/include/asm/global_data.h | 1 + board/keymile/km_arm/km_arm.c | 33 ++++++ include/configs/km/km_arm.h | 8 ++- include/post.h | 9 ++ post/drivers/memory.c | 171 +++++++++++++++++++------------ post/post.c | 29 ++++-- post/tests.c | 13 +++ 12 files changed, 199 insertions(+), 75 deletions(-)

For post to run on ARM, 3 things are needed: - post_log_word to be defined in gd - a post.h include in arch/arm/lib/board.c
Signed-off-by: Valentin Longchamp valentin.longchamp@keymile.com Signed-off-by: Holger Brunck holger.brunck@keymile.com Acked-by: Mike Frysinger vapier@gentoo.org --- Changes for v2: - introduced CONFIG_POST_EXTERNAL_WORD_FUNCS Changes for v3: - removed CONFIG_POST_EXTERNAL_WORD_FUNCS. This is now in a separate patch --- arch/arm/include/asm/global_data.h | 4 ++++ arch/arm/lib/board.c | 2 ++ 2 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/arch/arm/include/asm/global_data.h b/arch/arm/include/asm/global_data.h index 4fc51fd..b2c336a 100644 --- a/arch/arm/include/asm/global_data.h +++ b/arch/arm/include/asm/global_data.h @@ -75,6 +75,10 @@ typedef struct global_data { #endif void **jt; /* jump table */ char env_buf[32]; /* buffer for getenv() before reloc. */ +#if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER) + unsigned long post_log_word; /* Record POST activities */ + unsigned long post_init_f_time; /* When post_init_f started */ +#endif } gd_t;
/* diff --git a/arch/arm/lib/board.c b/arch/arm/lib/board.c index a7fb251..44ff2f8 100644 --- a/arch/arm/lib/board.c +++ b/arch/arm/lib/board.c @@ -48,6 +48,8 @@ #include <nand.h> #include <onenand_uboot.h> #include <mmc.h> +#include <post.h> +#include <logbuff.h>
#ifdef CONFIG_BITBANGMII #include <miiphy.h>

Dear Valentin Longchamp,
In message 1315837122-11952-2-git-send-email-valentin.longchamp@keymile.com you wrote:
For post to run on ARM, 3 things are needed:
- post_log_word to be defined in gd
- a post.h include in arch/arm/lib/board.c
Signed-off-by: Valentin Longchamp valentin.longchamp@keymile.com Signed-off-by: Holger Brunck holger.brunck@keymile.com Acked-by: Mike Frysinger vapier@gentoo.org
Changes for v2:
- introduced CONFIG_POST_EXTERNAL_WORD_FUNCS
Changes for v3:
- removed CONFIG_POST_EXTERNAL_WORD_FUNCS. This is now in a separate patch
arch/arm/include/asm/global_data.h | 4 ++++ arch/arm/lib/board.c | 2 ++ 2 files changed, 6 insertions(+), 0 deletions(-)
Applied, thanks.
Best regards,
Wolfgang Denk

The predefinde post_word_load/store functions do not fit all boards, so we introduce a way to define post_word_load/store as externs in post.h that then can be defined in board specific files. This is done with the CONFIG_POST_EXTERNAL_WORD_FUNCS #define
Signed-off-by: Valentin Longchamp valentin.longchamp@keymile.com Signed-off-by: Holger Brunck holger.brunck@keymile.com --- include/post.h | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/include/post.h b/include/post.h index 3d23d22..e783b94 100644 --- a/include/post.h +++ b/include/post.h @@ -33,6 +33,7 @@
#if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER)
+#ifndef CONFIG_POST_EXTERNAL_WORD_FUNCS #ifdef CONFIG_SYS_POST_WORD_ADDR #define _POST_WORD_ADDR CONFIG_SYS_POST_WORD_ADDR #else @@ -85,6 +86,13 @@ static inline void post_word_store (ulong value) { out_le32((volatile void *)(_POST_WORD_ADDR), value); } + +#else + +extern ulong post_word_load(void); +extern void post_word_store(ulong value); + +#endif /* CONFIG_POST_EXTERNAL_WORD_FUNCS */ #endif /* defined (CONFIG_POST) || defined(CONFIG_LOGBUFFER) */ #endif /* __ASSEMBLY__ */

Dear Valentin Longchamp,
In message 1315837122-11952-3-git-send-email-valentin.longchamp@keymile.com you wrote:
The predefinde post_word_load/store functions do not fit all boards, so we introduce a way to define post_word_load/store as externs in post.h that then can be defined in board specific files. This is done with the CONFIG_POST_EXTERNAL_WORD_FUNCS #define
Signed-off-by: Valentin Longchamp valentin.longchamp@keymile.com Signed-off-by: Holger Brunck holger.brunck@keymile.com
include/post.h | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-)
Applied, thanks.
Best regards,
Wolfgang Denk

The current post_log_word in global data is currently split into 2x 16 bits: half for the test start, half for the test success. Since we alredy have more than 16 POST tests defined and more could be defined, this may result in an overflow and the post_output_backlog would not work for the tests defined further of these 16 positions.
An additional field is added to global data so that we can now support up to 32 (depending of architecture) tests. The post_log_word is only used to record the start of the test and the new field post_log_res for the test success (or failure). The post_output_backlog is for this change also adapted.
Signed-off-by: Valentin Longchamp valentin.longchamp@keymile.com Signed-off-by: Holger Brunck holger.brunck@keymile.com Acked-by: Mike Frysinger vapier@gentoo.org --- arch/arm/include/asm/global_data.h | 1 + arch/blackfin/include/asm/global_data.h | 1 + arch/nios2/include/asm/global_data.h | 1 + arch/powerpc/include/asm/global_data.h | 1 + arch/sparc/include/asm/global_data.h | 1 + post/post.c | 9 +++++---- 6 files changed, 10 insertions(+), 4 deletions(-)
diff --git a/arch/arm/include/asm/global_data.h b/arch/arm/include/asm/global_data.h index b2c336a..14b9255 100644 --- a/arch/arm/include/asm/global_data.h +++ b/arch/arm/include/asm/global_data.h @@ -77,6 +77,7 @@ typedef struct global_data { char env_buf[32]; /* buffer for getenv() before reloc. */ #if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER) unsigned long post_log_word; /* Record POST activities */ + unsigned long post_log_res; /* success of POST test */ unsigned long post_init_f_time; /* When post_init_f started */ #endif } gd_t; diff --git a/arch/blackfin/include/asm/global_data.h b/arch/blackfin/include/asm/global_data.h index eba5e93..62cd631 100644 --- a/arch/blackfin/include/asm/global_data.h +++ b/arch/blackfin/include/asm/global_data.h @@ -50,6 +50,7 @@ typedef struct global_data { unsigned long env_valid; /* Checksum of Environment valid? */ #if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER) unsigned long post_log_word; /* Record POST activities */ + unsigned long post_log_res; /* success of POST test */ unsigned long post_init_f_time; /* When post_init_f started */ #endif
diff --git a/arch/nios2/include/asm/global_data.h b/arch/nios2/include/asm/global_data.h index 2c4a719..1f0bbe8 100644 --- a/arch/nios2/include/asm/global_data.h +++ b/arch/nios2/include/asm/global_data.h @@ -34,6 +34,7 @@ typedef struct global_data { unsigned long env_valid; /* Checksum of Environment valid */ #if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER) unsigned long post_log_word; /* Record POST activities */ + unsigned long post_log_res; /* success of POST test */ unsigned long post_init_f_time; /* When post_init_f started */ #endif void **jt; /* Standalone app jump table */ diff --git a/arch/powerpc/include/asm/global_data.h b/arch/powerpc/include/asm/global_data.h index a33ca2f..fbfe8c0 100644 --- a/arch/powerpc/include/asm/global_data.h +++ b/arch/powerpc/include/asm/global_data.h @@ -160,6 +160,7 @@ typedef struct global_data { #endif #if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER) unsigned long post_log_word; /* Record POST activities */ + unsigned long post_log_res; /* success of POST test */ unsigned long post_init_f_time; /* When post_init_f started */ #endif #ifdef CONFIG_BOARD_TYPES diff --git a/arch/sparc/include/asm/global_data.h b/arch/sparc/include/asm/global_data.h index 9b14674..4b62250 100644 --- a/arch/sparc/include/asm/global_data.h +++ b/arch/sparc/include/asm/global_data.h @@ -58,6 +58,7 @@ typedef struct global_data { #endif #if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER) unsigned long post_log_word; /* Record POST activities */ + unsigned long post_log_res; /* success of POST test */ unsigned long post_init_f_time; /* When post_init_f started */ #endif #ifdef CONFIG_BOARD_TYPES diff --git a/post/post.c b/post/post.c index 852d6a5..61acf8d 100644 --- a/post/post.c +++ b/post/post.c @@ -121,6 +121,7 @@ void post_bootmode_init (void)
/* Reset activity record */ gd->post_log_word = 0; + gd->post_log_res = 0; }
int post_bootmode_get (unsigned int *last_test) @@ -144,12 +145,12 @@ int post_bootmode_get (unsigned int *last_test) /* POST tests run before relocation only mark status bits .... */ static void post_log_mark_start ( unsigned long testid ) { - gd->post_log_word |= (testid)<<16; + gd->post_log_word |= testid; }
static void post_log_mark_succ ( unsigned long testid ) { - gd->post_log_word |= testid; + gd->post_log_res |= testid; }
/* ... and the messages are output once we are relocated */ @@ -158,9 +159,9 @@ void post_output_backlog ( void ) int j;
for (j = 0; j < post_list_size; j++) { - if (gd->post_log_word & (post_list[j].testid<<16)) { + if (gd->post_log_word & (post_list[j].testid)) { post_log ("POST %s ", post_list[j].cmd); - if (gd->post_log_word & post_list[j].testid) + if (gd->post_log_res & post_list[j].testid) post_log ("PASSED\n"); else { post_log ("FAILED\n");

Dear Valentin Longchamp,
In message 1315837122-11952-4-git-send-email-valentin.longchamp@keymile.com you wrote:
The current post_log_word in global data is currently split into 2x 16 bits: half for the test start, half for the test success. Since we alredy have more than 16 POST tests defined and more could be defined, this may result in an overflow and the post_output_backlog would not work for the tests defined further of these 16 positions.
An additional field is added to global data so that we can now support up to 32 (depending of architecture) tests. The post_log_word is only used to record the start of the test and the new field post_log_res for the test success (or failure). The post_output_backlog is for this change also adapted.
Signed-off-by: Valentin Longchamp valentin.longchamp@keymile.com Signed-off-by: Holger Brunck holger.brunck@keymile.com Acked-by: Mike Frysinger vapier@gentoo.org
arch/arm/include/asm/global_data.h | 1 + arch/blackfin/include/asm/global_data.h | 1 + arch/nios2/include/asm/global_data.h | 1 + arch/powerpc/include/asm/global_data.h | 1 + arch/sparc/include/asm/global_data.h | 1 + post/post.c | 9 +++++---- 6 files changed, 10 insertions(+), 4 deletions(-)
Applied, thanks.
Best regards,
Wolfgang Denk

Some boards have the environment variables defined in a slow EEPROM. post_run accesses these environment variables to define which tests have to be run (in post_get_flags). This is very slow before the code relocation on some boards with a slow I2C EEPROM for environement variables.
This patch adds a config option to skip the fetching of the test flags in the environment variables. The test flags assigned to the tests then only are the ones statically defined for the test in post/tests.c.
Signed-off-by: Valentin Longchamp valentin.longchamp@keymile.com Signed-off-by: Holger Brunck holger.brunck@keymile.com Acked-by: Mike Frysinger vapier@gentoo.org --- post/post.c | 20 +++++++++++++++----- 1 files changed, 15 insertions(+), 5 deletions(-)
diff --git a/post/post.c b/post/post.c index 61acf8d..1ee0a29 100644 --- a/post/post.c +++ b/post/post.c @@ -191,7 +191,8 @@ static void post_bootmode_test_off (void) post_word_store (word); }
-static void post_get_flags (int *test_flags) +#ifndef CONFIG_POST_SKIP_ENV_FLAGS +static void post_get_env_flags(int *test_flags) { int flag[] = { POST_POWERON, POST_NORMAL, POST_SLOWTEST, POST_CRITICAL }; @@ -204,10 +205,6 @@ static void post_get_flags (int *test_flags) int last; int i, j;
- for (j = 0; j < post_list_size; j++) { - test_flags[j] = post_list[j].flags; - } - for (i = 0; i < varnum; i++) { if (getenv_f(var[i], list, sizeof (list)) <= 0) continue; @@ -245,6 +242,19 @@ static void post_get_flags (int *test_flags) name = s + 1; } } +} +#endif + +static void post_get_flags(int *test_flags) +{ + int j; + + for (j = 0; j < post_list_size; j++) + test_flags[j] = post_list[j].flags; + +#ifndef CONFIG_POST_SKIP_ENV_FLAGS + post_get_env_flags(test_flags); +#endif
for (j = 0; j < post_list_size; j++) { if (test_flags[j] & POST_POWERON) {

Dear Valentin Longchamp,
In message 1315837122-11952-5-git-send-email-valentin.longchamp@keymile.com you wrote:
Some boards have the environment variables defined in a slow EEPROM. post_run accesses these environment variables to define which tests have to be run (in post_get_flags). This is very slow before the code relocation on some boards with a slow I2C EEPROM for environement variables.
This patch adds a config option to skip the fetching of the test flags in the environment variables. The test flags assigned to the tests then only are the ones statically defined for the test in post/tests.c.
Signed-off-by: Valentin Longchamp valentin.longchamp@keymile.com Signed-off-by: Holger Brunck holger.brunck@keymile.com Acked-by: Mike Frysinger vapier@gentoo.org
post/post.c | 20 +++++++++++++++----- 1 files changed, 15 insertions(+), 5 deletions(-)
Applied, thanks.
Best regards,
Wolfgang Denk

This is needed for a further patch adding a new memory test.
Signed-off-by: Valentin Longchamp valentin.longchamp@keymile.com Acked-by: Mike Frysinger vapier@gentoo.org --- Changes for v4: - rebased on 2011.09-rc1 --- post/drivers/memory.c | 113 +++++++++++++++++++++++++------------------------ 1 files changed, 57 insertions(+), 56 deletions(-)
diff --git a/post/drivers/memory.c b/post/drivers/memory.c index c2b711e..69c5dbe 100644 --- a/post/drivers/memory.c +++ b/post/drivers/memory.c @@ -250,7 +250,7 @@ static int memory_post_dataline(unsigned long long * pmem) hi = (temp64>>32) & 0xffffffff; lo = temp64 & 0xffffffff;
- post_log ("Memory (date line) error at %08x, " + post_log("Memory (date line) error at %08x, " "wrote %08x%08x, read %08x%08x !\n", pmem, pathi, patlo, hi, lo); ret = -1; @@ -281,7 +281,7 @@ static int memory_post_addrline(ulong *testaddr, ulong *base, ulong size) } #endif if(readback == *testaddr) { - post_log ("Memory (address line) error at %08x<->%08x, " + post_log("Memory (address line) error at %08x<->%08x, " "XOR value %08x !\n", testaddr, target, xor); ret = -1; @@ -291,7 +291,7 @@ static int memory_post_addrline(ulong *testaddr, ulong *base, ulong size) return ret; }
-static int memory_post_test1 (unsigned long start, +static int memory_post_test1(unsigned long start, unsigned long size, unsigned long val) { @@ -303,13 +303,13 @@ static int memory_post_test1 (unsigned long start, for (i = 0; i < size / sizeof (ulong); i++) { mem[i] = val; if (i % 1024 == 0) - WATCHDOG_RESET (); + WATCHDOG_RESET(); }
- for (i = 0; i < size / sizeof (ulong) && ret == 0; i++) { + for (i = 0; i < size / sizeof (ulong) && !ret; i++) { readback = mem[i]; if (readback != val) { - post_log ("Memory error at %08x, " + post_log("Memory error at %08x, " "wrote %08x, read %08x !\n", mem + i, val, readback);
@@ -317,13 +317,13 @@ static int memory_post_test1 (unsigned long start, break; } if (i % 1024 == 0) - WATCHDOG_RESET (); + WATCHDOG_RESET(); }
return ret; }
-static int memory_post_test2 (unsigned long start, unsigned long size) +static int memory_post_test2(unsigned long start, unsigned long size) { unsigned long i; ulong *mem = (ulong *) start; @@ -333,13 +333,13 @@ static int memory_post_test2 (unsigned long start, unsigned long size) for (i = 0; i < size / sizeof (ulong); i++) { mem[i] = 1 << (i % 32); if (i % 1024 == 0) - WATCHDOG_RESET (); + WATCHDOG_RESET(); }
- for (i = 0; i < size / sizeof (ulong) && ret == 0; i++) { + for (i = 0; i < size / sizeof (ulong) && !ret; i++) { readback = mem[i]; if (readback != (1 << (i % 32))) { - post_log ("Memory error at %08x, " + post_log("Memory error at %08x, " "wrote %08x, read %08x !\n", mem + i, 1 << (i % 32), readback);
@@ -347,13 +347,13 @@ static int memory_post_test2 (unsigned long start, unsigned long size) break; } if (i % 1024 == 0) - WATCHDOG_RESET (); + WATCHDOG_RESET(); }
return ret; }
-static int memory_post_test3 (unsigned long start, unsigned long size) +static int memory_post_test3(unsigned long start, unsigned long size) { unsigned long i; ulong *mem = (ulong *) start; @@ -363,13 +363,13 @@ static int memory_post_test3 (unsigned long start, unsigned long size) for (i = 0; i < size / sizeof (ulong); i++) { mem[i] = i; if (i % 1024 == 0) - WATCHDOG_RESET (); + WATCHDOG_RESET(); }
- for (i = 0; i < size / sizeof (ulong) && ret == 0; i++) { + for (i = 0; i < size / sizeof (ulong) && !ret; i++) { readback = mem[i]; if (readback != i) { - post_log ("Memory error at %08x, " + post_log("Memory error at %08x, " "wrote %08x, read %08x !\n", mem + i, i, readback);
@@ -377,13 +377,13 @@ static int memory_post_test3 (unsigned long start, unsigned long size) break; } if (i % 1024 == 0) - WATCHDOG_RESET (); + WATCHDOG_RESET(); }
return ret; }
-static int memory_post_test4 (unsigned long start, unsigned long size) +static int memory_post_test4(unsigned long start, unsigned long size) { unsigned long i; ulong *mem = (ulong *) start; @@ -393,13 +393,13 @@ static int memory_post_test4 (unsigned long start, unsigned long size) for (i = 0; i < size / sizeof (ulong); i++) { mem[i] = ~i; if (i % 1024 == 0) - WATCHDOG_RESET (); + WATCHDOG_RESET(); }
- for (i = 0; i < size / sizeof (ulong) && ret == 0; i++) { + for (i = 0; i < size / sizeof (ulong) && !ret; i++) { readback = mem[i]; if (readback != ~i) { - post_log ("Memory error at %08x, " + post_log("Memory error at %08x, " "wrote %08x, read %08x !\n", mem + i, ~i, readback);
@@ -407,47 +407,48 @@ static int memory_post_test4 (unsigned long start, unsigned long size) break; } if (i % 1024 == 0) - WATCHDOG_RESET (); + WATCHDOG_RESET(); }
return ret; }
-static int memory_post_tests (unsigned long start, unsigned long size) +static int memory_post_tests(unsigned long start, unsigned long size) { int ret = 0;
- if (ret == 0) - ret = memory_post_dataline ((unsigned long long *)start); - WATCHDOG_RESET (); - if (ret == 0) - ret = memory_post_addrline ((ulong *)start, (ulong *)start, size); - WATCHDOG_RESET (); - if (ret == 0) - ret = memory_post_addrline ((ulong *)(start + size - 8), + if (!ret) + ret = memory_post_dataline((unsigned long long *)start); + WATCHDOG_RESET(); + if (!ret) + ret = memory_post_addrline((ulong *)start, (ulong *)start, + size); + WATCHDOG_RESET(); + if (!ret) + ret = memory_post_addrline((ulong *)(start + size - 8), (ulong *)start, size); - WATCHDOG_RESET (); - if (ret == 0) - ret = memory_post_test1 (start, size, 0x00000000); - WATCHDOG_RESET (); - if (ret == 0) - ret = memory_post_test1 (start, size, 0xffffffff); - WATCHDOG_RESET (); - if (ret == 0) - ret = memory_post_test1 (start, size, 0x55555555); - WATCHDOG_RESET (); - if (ret == 0) - ret = memory_post_test1 (start, size, 0xaaaaaaaa); - WATCHDOG_RESET (); - if (ret == 0) - ret = memory_post_test2 (start, size); - WATCHDOG_RESET (); - if (ret == 0) - ret = memory_post_test3 (start, size); - WATCHDOG_RESET (); - if (ret == 0) - ret = memory_post_test4 (start, size); - WATCHDOG_RESET (); + WATCHDOG_RESET(); + if (!ret) + ret = memory_post_test1(start, size, 0x00000000); + WATCHDOG_RESET(); + if (!ret) + ret = memory_post_test1(start, size, 0xffffffff); + WATCHDOG_RESET(); + if (!ret) + ret = memory_post_test1(start, size, 0x55555555); + WATCHDOG_RESET(); + if (!ret) + ret = memory_post_test1(start, size, 0xaaaaaaaa); + WATCHDOG_RESET(); + if (!ret) + ret = memory_post_test2(start, size); + WATCHDOG_RESET(); + if (!ret) + ret = memory_post_test3(start, size); + WATCHDOG_RESET(); + if (!ret) + ret = memory_post_test4(start, size); + WATCHDOG_RESET();
return ret; } @@ -502,11 +503,11 @@ int memory_post_test(int flags) ret = memory_post_tests(vstart, memsize); } else { /* POST_NORMAL */ unsigned long i; - for (i = 0; i < (memsize >> 20) && ret == 0; i++) { - if (ret == 0) + for (i = 0; i < (memsize >> 20) && !ret; i++) { + if (!ret) ret = memory_post_tests(vstart + (i << 20), 0x800); - if (ret == 0) + if (!ret) ret = memory_post_tests(vstart + (i << 20) + 0xff800, 0x800); }

Dear Valentin Longchamp,
In message 1315837122-11952-6-git-send-email-valentin.longchamp@keymile.com you wrote:
This is needed for a further patch adding a new memory test.
Signed-off-by: Valentin Longchamp valentin.longchamp@keymile.com Acked-by: Mike Frysinger vapier@gentoo.org
Changes for v4:
- rebased on 2011.09-rc1
post/drivers/memory.c | 113 +++++++++++++++++++++++++------------------------ 1 files changed, 57 insertions(+), 56 deletions(-)
Applied, thanks.
Best regards,
Wolfgang Denk

This test is similar to the actual POST memory test but quicker and far less complete. It checks the address and data lines and then only tests some regularly placed sub regions of the RAM. This can be useful when we want to test the RAM but we do not have enough time to run the full memory test.
The POST memory test code was rearranged in order to avoid code duplication between the two tests but the memory test functionnality remains the same.
Signed-off-by: Valentin Longchamp valentin.longchamp@keymile.com Signed-off-by: Holger Brunck holger.brunck@keymile.com Ackey-by: Mike Frysinger vapier@gentoo.org --- Changes for v3: - cosmetic changes in the test list Changes for v4: - rebased on 2011.09-rc1 --- include/post.h | 1 + post/drivers/memory.c | 78 +++++++++++++++++++++++++++++++++++++------------ post/tests.c | 13 ++++++++ 3 files changed, 73 insertions(+), 19 deletions(-)
diff --git a/include/post.h b/include/post.h index e783b94..ac93f43 100644 --- a/include/post.h +++ b/include/post.h @@ -196,6 +196,7 @@ extern int memory_post_test(int flags); #define CONFIG_SYS_POST_CODEC 0x00200000 #define CONFIG_SYS_POST_COPROC 0x00400000 #define CONFIG_SYS_POST_FLASH 0x00800000 +#define CONFIG_SYS_POST_MEM_REGIONS 0x01000000
#endif /* CONFIG_POST */
diff --git a/post/drivers/memory.c b/post/drivers/memory.c index 69c5dbe..69973c0 100644 --- a/post/drivers/memory.c +++ b/post/drivers/memory.c @@ -153,7 +153,7 @@ #include <post.h> #include <watchdog.h>
-#if CONFIG_POST & CONFIG_SYS_POST_MEMORY +#if CONFIG_POST & (CONFIG_SYS_POST_MEMORY | CONFIG_SYS_POST_MEM_REGIONS)
DECLARE_GLOBAL_DATA_PTR;
@@ -413,23 +413,29 @@ static int memory_post_test4(unsigned long start, unsigned long size) return ret; }
-static int memory_post_tests(unsigned long start, unsigned long size) +static int memory_post_test_lines(unsigned long start, unsigned long size) { int ret = 0;
- if (!ret) - ret = memory_post_dataline((unsigned long long *)start); + ret = memory_post_dataline((unsigned long long *)start); WATCHDOG_RESET(); if (!ret) ret = memory_post_addrline((ulong *)start, (ulong *)start, - size); + size); WATCHDOG_RESET(); if (!ret) - ret = memory_post_addrline((ulong *)(start + size - 8), - (ulong *)start, size); + ret = memory_post_addrline((ulong *)(start+size-8), + (ulong *)start, size); WATCHDOG_RESET(); - if (!ret) - ret = memory_post_test1(start, size, 0x00000000); + + return ret; +} + +static int memory_post_test_patterns(unsigned long start, unsigned long size) +{ + int ret = 0; + + ret = memory_post_test1(start, size, 0x00000000); WATCHDOG_RESET(); if (!ret) ret = memory_post_test1(start, size, 0xffffffff); @@ -453,6 +459,33 @@ static int memory_post_tests(unsigned long start, unsigned long size) return ret; }
+static int memory_post_test_regions(unsigned long start, unsigned long size) +{ + unsigned long i; + int ret = 0; + + for (i = 0; i < (size >> 20) && (!ret); i++) { + if (!ret) + ret = memory_post_test_patterns(i << 20, 0x800); + if (!ret) + ret = memory_post_test_patterns((i << 20) + 0xff800, + 0x800); + } + + return ret; +} + +static int memory_post_tests(unsigned long start, unsigned long size) +{ + int ret = 0; + + ret = memory_post_test_lines(start, size); + if (!ret) + ret = memory_post_test_patterns(start, size); + + return ret; +} + /* * !! this is only valid, if you have contiguous memory banks !! */ @@ -490,6 +523,21 @@ void arch_memory_failure_handle(void) return; }
+int memory_regions_post_test(int flags) +{ + int ret = 0; + phys_addr_t phys_offset = 0; + u32 memsize, vstart; + + arch_memory_test_prepare(&vstart, &memsize, &phys_offset); + + ret = memory_post_test_lines(vstart, memsize); + if (!ret) + ret = memory_post_test_regions(vstart, memsize); + + return ret; +} + int memory_post_test(int flags) { int ret = 0; @@ -502,15 +550,7 @@ int memory_post_test(int flags) if (flags & POST_SLOWTEST) { ret = memory_post_tests(vstart, memsize); } else { /* POST_NORMAL */ - unsigned long i; - for (i = 0; i < (memsize >> 20) && !ret; i++) { - if (!ret) - ret = memory_post_tests(vstart + - (i << 20), 0x800); - if (!ret) - ret = memory_post_tests(vstart + - (i << 20) + 0xff800, 0x800); - } + ret = memory_post_test_regions(vstart, memsize); } } while (!ret && !arch_memory_test_advance(&vstart, &memsize, &phys_offset)); @@ -522,4 +562,4 @@ int memory_post_test(int flags) return ret; }
-#endif /* CONFIG_POST & CONFIG_SYS_POST_MEMORY */ +#endif /* CONFIG_POST&(CONFIG_SYS_POST_MEMORY|CONFIG_SYS_POST_MEM_REGIONS) */ diff --git a/post/tests.c b/post/tests.c index bfb9cb5..c25460b 100644 --- a/post/tests.c +++ b/post/tests.c @@ -55,6 +55,7 @@ extern int fpga_post_test (int flags); extern int lwmon5_watchdog_post_test(int flags); extern int sysmon1_post_test(int flags); extern int coprocessor_post_test(int flags); +extern int memory_regions_post_test(int flags);
extern int sysmon_init_f (void);
@@ -316,6 +317,18 @@ struct post_test post_list[] = CONFIG_SYS_POST_FLASH }, #endif +#if CONFIG_POST & CONFIG_SYS_POST_MEM_REGIONS + { + "Memory regions test", + "mem_regions", + "This test checks regularly placed regions of the RAM.", + POST_ROM | POST_SLOWTEST | POST_PREREL, + &memory_regions_post_test, + NULL, + NULL, + CONFIG_SYS_POST_MEM_REGIONS + }, +#endif };
unsigned int post_list_size = ARRAY_SIZE(post_list);

Dear Valentin Longchamp,
In message 1315837122-11952-7-git-send-email-valentin.longchamp@keymile.com you wrote:
This test is similar to the actual POST memory test but quicker and far less complete. It checks the address and data lines and then only tests some regularly placed sub regions of the RAM. This can be useful when we want to test the RAM but we do not have enough time to run the full memory test.
The POST memory test code was rearranged in order to avoid code duplication between the two tests but the memory test functionnality remains the same.
Signed-off-by: Valentin Longchamp valentin.longchamp@keymile.com Signed-off-by: Holger Brunck holger.brunck@keymile.com Ackey-by: Mike Frysinger vapier@gentoo.org
Changes for v3:
- cosmetic changes in the test list
Changes for v4:
- rebased on 2011.09-rc1
include/post.h | 1 + post/drivers/memory.c | 78 +++++++++++++++++++++++++++++++++++++------------ post/tests.c | 13 ++++++++ 3 files changed, 73 insertions(+), 19 deletions(-)
Applied, thanks.
Best regards,
Wolfgang Denk

This allows to test a larger part of the RAM in the memory tests.
Signed-off-by: Valentin Longchamp valentin.longchamp@keymile.com Signed-off-by: Holger Brunck holger.brunck@keymile.com Cc: Heiko Schocher hs@denx.de Cc: Prafulla Wadaskar prafulla@marvell.com --- Changes for v4: - fixed wrong comment --- include/configs/km/km_arm.h | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/include/configs/km/km_arm.h b/include/configs/km/km_arm.h index f185019..a3725c0 100644 --- a/include/configs/km/km_arm.h +++ b/include/configs/km/km_arm.h @@ -54,7 +54,7 @@
#include "asm/arch/config.h"
-#define CONFIG_SYS_TEXT_BASE 0x04000000 /* code address after reloc */ +#define CONFIG_SYS_TEXT_BASE 0x07d00000 /* code address before reloc */ #define CONFIG_SYS_MEMTEST_START 0x00400000 /* 4M */ #define CONFIG_SYS_MEMTEST_END 0x007fffff /*(_8M -1) */ #define CONFIG_SYS_LOAD_ADDR 0x00800000 /* default load adr- 8M */

Dear Valentin Longchamp,
In message 1315837122-11952-8-git-send-email-valentin.longchamp@keymile.com you wrote:
This allows to test a larger part of the RAM in the memory tests.
Signed-off-by: Valentin Longchamp valentin.longchamp@keymile.com Signed-off-by: Holger Brunck holger.brunck@keymile.com Cc: Heiko Schocher hs@denx.de Cc: Prafulla Wadaskar prafulla@marvell.com
Changes for v4:
- fixed wrong comment
include/configs/km/km_arm.h | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
Applied, thanks.
Best regards,
Wolfgang Denk

The current km_arm boards have a Power-On test jumper. When this jumper is set, this triggers some Power-On tests on the board.
This patch enables the support of this jumper for starting the memory_regions test when the jumper is set.
Signed-off-by: Valentin Longchamp valentin.longchamp@keymile.com Signed-off-by: Holger Brunck holger.brunck@keymile.com Cc: Prafulla Wadaskar prafulla@marvell.com --- Changes for v2: - adapted to CONFIG_POST_EXTERNAL_WORD_FUNCS - implemented suggestion from Sergei Changes for v3: - moved arch_memory_test_prepare from post/board/km_arm to board/keymile/km_arm/km_arm.c Changes for v4: - moved post_word adress because of conflict with bootcounter --- board/keymile/km_arm/km_arm.c | 33 +++++++++++++++++++++++++++++++++ include/configs/km/km_arm.h | 6 ++++++ 2 files changed, 39 insertions(+), 0 deletions(-)
diff --git a/board/keymile/km_arm/km_arm.c b/board/keymile/km_arm/km_arm.c index 8670567..b057182 100644 --- a/board/keymile/km_arm/km_arm.c +++ b/board/keymile/km_arm/km_arm.c @@ -488,6 +488,39 @@ int get_scl(void) } #endif
+#if defined(CONFIG_POST) + +#define KM_POST_EN_L 44 +#define POST_WORD_OFF 8 + +int post_hotkeys_pressed(void) +{ + return !kw_gpio_get_value(KM_POST_EN_L); +} + +ulong post_word_load(void) +{ + volatile void* addr = (void *) (gd->ram_size - BOOTCOUNT_ADDR + POST_WORD_OFF); + return in_le32(addr); + +} +void post_word_store(ulong value) +{ + volatile void* addr = (void *) (gd->ram_size - BOOTCOUNT_ADDR + POST_WORD_OFF); + out_le32(addr, value); +} + +int arch_memory_test_prepare(u32 *vstart, u32 *size, phys_addr_t *phys_offset) +{ + *vstart = CONFIG_SYS_SDRAM_BASE; + + /* we go up to relocation plus a 1 MB margin */ + *size = CONFIG_SYS_TEXT_BASE - (1<<20); + + return 0; +} +#endif + #if defined(CONFIG_SYS_EEPROM_WREN) int eeprom_write_enable(unsigned dev_addr, int state) { diff --git a/include/configs/km/km_arm.h b/include/configs/km/km_arm.h index a3725c0..0271e7e 100644 --- a/include/configs/km/km_arm.h +++ b/include/configs/km/km_arm.h @@ -272,4 +272,10 @@ int get_scl(void); /* address for the bootcount (taken from end of RAM) */ #define BOOTCOUNT_ADDR (CONFIG_KM_RESERVED_PRAM)
+/* enable POST tests */ +#define CONFIG_POST (CONFIG_SYS_POST_MEM_REGIONS) +#define CONFIG_POST_SKIP_ENV_FLAGS +#define CONFIG_POST_EXTERNAL_WORD_FUNCS +#define CONFIG_CMD_DIAG + #endif /* _CONFIG_KM_ARM_H */

Dear Valentin Longchamp,
In message 1315837122-11952-9-git-send-email-valentin.longchamp@keymile.com you wrote:
The current km_arm boards have a Power-On test jumper. When this jumper is set, this triggers some Power-On tests on the board.
This patch enables the support of this jumper for starting the memory_regions test when the jumper is set.
Signed-off-by: Valentin Longchamp valentin.longchamp@keymile.com Signed-off-by: Holger Brunck holger.brunck@keymile.com Cc: Prafulla Wadaskar prafulla@marvell.com
Changes for v2:
- adapted to CONFIG_POST_EXTERNAL_WORD_FUNCS
- implemented suggestion from Sergei
Changes for v3:
- moved arch_memory_test_prepare from post/board/km_arm to board/keymile/km_arm/km_arm.c
Changes for v4:
- moved post_word adress because of conflict with bootcounter
board/keymile/km_arm/km_arm.c | 33 +++++++++++++++++++++++++++++++++ include/configs/km/km_arm.h | 6 ++++++ 2 files changed, 39 insertions(+), 0 deletions(-)
Applied, thanks.
Best regards,
Wolfgang Denk

On Monday, September 12, 2011 10:18:34 Valentin Longchamp wrote:
This series adds support for POST on the km_arm boards. These boards use a jumper to run some self-tests at the board power-up. There are some adaptations for POST to run on the ARM architecture.
This series defines a new mem_regions POST test. This test also takes place before relocation, but it only tests some regions of the RAM so that it is quicker.
i dont see any issues now, so it's up to wolfgang to cherry pick during the next merge window -mike
participants (3)
-
Mike Frysinger
-
Valentin Longchamp
-
Wolfgang Denk