From 4504d2e78d544ef649dede6148675cef3ca500e3 Mon Sep 17 00:00:00 2001 From: Denys Dmytriyenko Date: Wed, 20 Jun 2018 19:18:24 -0400 Subject: devmem2: ensure word is 32-bit, add support for 64-bit long Since sizeof(unsigned long) can be 8-byte on 64-bit architectures, use uint32_t instead for "word" access to always be 4-byte/32-bit long. Also introduce proper "long" 8-byte/64-bit access by using uint64_t. Signed-off-by: Denys Dmytriyenko Signed-off-by: Khem Raj (cherry picked from commit 1bcd15ed5b31bdec492af99f671718d7a6eb887b) Signed-off-by: Armin Kuster --- ...sure-word-is-32-bit-and-add-support-for-6.patch | 70 ++++++++++++++++++++++ 1 file changed, 70 insertions(+) create mode 100644 meta-oe/recipes-support/devmem2/devmem2/0001-devmem.c-ensure-word-is-32-bit-and-add-support-for-6.patch (limited to 'meta-oe/recipes-support/devmem2/devmem2') diff --git a/meta-oe/recipes-support/devmem2/devmem2/0001-devmem.c-ensure-word-is-32-bit-and-add-support-for-6.patch b/meta-oe/recipes-support/devmem2/devmem2/0001-devmem.c-ensure-word-is-32-bit-and-add-support-for-6.patch new file mode 100644 index 0000000000..2a57f29891 --- /dev/null +++ b/meta-oe/recipes-support/devmem2/devmem2/0001-devmem.c-ensure-word-is-32-bit-and-add-support-for-6.patch @@ -0,0 +1,70 @@ +From 1360a907879dd24041797a3b709d49aeac2ab444 Mon Sep 17 00:00:00 2001 +From: Denys Dmytriyenko +Date: Tue, 29 May 2018 16:55:42 -0400 +Subject: [PATCH] devmem.c: ensure word is 32-bit and add support for 64-bit + long + +Signed-off-by: Denys Dmytriyenko +--- + devmem2.c | 23 +++++++++++++++++------ + 1 file changed, 17 insertions(+), 6 deletions(-) + +diff --git a/devmem2.c b/devmem2.c +index 5845381..68131b2 100644 +--- a/devmem2.c ++++ b/devmem2.c +@@ -39,6 +39,7 @@ + + #include + #include ++#include + #include + #include + #include +@@ -69,7 +70,7 @@ int main(int argc, char **argv) { + if(argc < 2) { + fprintf(stderr, "\nUsage:\t%s { address } [ type [ data ] ]\n" + "\taddress : memory address to act upon\n" +- "\ttype : access operation type : [b]yte, [h]alfword, [w]ord\n" ++ "\ttype : access operation type : [b]yte, [h]alfword, [w]ord, [l]ong\n" + "\tdata : data to be written\n\n", + argv[0]); + exit(1); +@@ -103,9 +104,14 @@ int main(int argc, char **argv) { + read_result = *((unsigned short *) virt_addr); + break; + case 'w': +- data_size = sizeof(unsigned long); ++ data_size = sizeof(uint32_t); + virt_addr = fixup_addr(virt_addr, data_size); +- read_result = *((unsigned long *) virt_addr); ++ read_result = *((uint32_t *) virt_addr); ++ break; ++ case 'l': ++ data_size = sizeof(uint64_t); ++ virt_addr = fixup_addr(virt_addr, data_size); ++ read_result = *((uint64_t *) virt_addr); + break; + default: + fprintf(stderr, "Illegal data type '%c'.\n", access_type); +@@ -129,9 +135,14 @@ int main(int argc, char **argv) { + read_result = *((unsigned short *) virt_addr); + break; + case 'w': +- virt_addr = fixup_addr(virt_addr, sizeof(unsigned long)); +- *((unsigned long *) virt_addr) = write_val; +- read_result = *((unsigned long *) virt_addr); ++ virt_addr = fixup_addr(virt_addr, sizeof(uint32_t)); ++ *((uint32_t *) virt_addr) = write_val; ++ read_result = *((uint32_t *) virt_addr); ++ break; ++ case 'l': ++ virt_addr = fixup_addr(virt_addr, sizeof(uint64_t)); ++ *((uint64_t *) virt_addr) = write_val; ++ read_result = *((uint64_t *) virt_addr); + break; + } + sprintf(fmt_str, "Write at address 0x%%08lX (%%p): 0x%%0%dlX, " +-- +2.7.4 + -- cgit 1.2.3-korg