Merge pull request #13848 from LDong-Arm/qspif_program_size_fix

Q/OSPIFBlockDevice: fix misconception in minimum program size
pull/13918/head
Martin Kojtal 2020-11-17 21:59:53 +00:00 committed by GitHub
commit b9daf3fb15
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4 changed files with 26 additions and 11 deletions

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@ -23,7 +23,7 @@
"OSPI_POLARITY_MODE": 0,
"OSPI_FREQ": "40000000",
"OSPI_MIN_READ_SIZE": "1",
"OSPI_MIN_PROG_SIZE": "256"
"OSPI_MIN_PROG_SIZE": "1"
},
"target_overrides": {
"MX25LM51245G": {

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@ -18,7 +18,7 @@
"QSPI_POLARITY_MODE": 0,
"QSPI_FREQ": "40000000",
"QSPI_MIN_READ_SIZE": "1",
"QSPI_MIN_PROG_SIZE": "256"
"QSPI_MIN_PROG_SIZE": "1"
},
"target_overrides": {
"MX25R6435F": {
@ -37,15 +37,18 @@
"MCU_NRF52840": {
"QSPI_FREQ": "32000000",
"QSPI_MIN_READ_SIZE": "4",
"QSPI_MIN_PROG_SIZE": "256"
"QSPI_MIN_PROG_SIZE": "4"
},
"MCU_PSOC6": {
"QSPI_FREQ": "50000000",
"QSPI_MIN_PROG_SIZE": "512"
"QSPI_FREQ": "50000000"
},
"EFM32GG11_STK3701": {
"QSPI_MIN_READ_SIZE": "4",
"QSPI_MIN_PROG_SIZE": "256"
"QSPI_MIN_PROG_SIZE": "4"
},
"MCU_LPC546XX": {
"QSPI_MIN_READ_SIZE": "4",
"QSPI_MIN_PROG_SIZE": "4"
}
}
}

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@ -546,11 +546,18 @@ void test_contiguous_erase_write_read()
bd_size_t contiguous_erase_size = stop_address - start_address;
TEST_ASSERT(contiguous_erase_size > 0);
utest_printf("contiguous_erase_size=%d\n", contiguous_erase_size);
utest_printf("contiguous_erase_size=0x%" PRIx64 "\n", contiguous_erase_size);
bd_size_t write_read_buf_size = program_size;
if (contiguous_erase_size / program_size > 8 && contiguous_erase_size % (program_size * 8) == 0) {
write_read_buf_size = program_size * 8;
// Reading/writing in larger chunks reduces the number of operations,
// helping to avoid test timeouts. Try 256-byte chunks if contiguous_erase_size
// (which should be a power of 2) is greater than that. If it's less than
// that, the test finishes quickly anyway...
if ((program_size < 256) && (256 % program_size == 0)
&& (contiguous_erase_size >= 256) && (contiguous_erase_size % 256 == 0)) {
utest_printf("using 256-byte write/read buffer\n");
write_read_buf_size = 256;
}
// Allocate write/read buffer

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@ -79,6 +79,7 @@ static void kvstore_init()
// be a close enough approximation to act as a guideline for how much of the block device we
// need to erase in order to ensure a stable initial condition.
const size_t PAGES_ESTIMATE = 40;
const size_t MIN_TDBSTORE_SIZE = 2 * 8 * 1024; // two areas, minimum 8KB per area
int res;
size_t program_size, erase_size, ul_bd_size, rbp_bd_size;
@ -133,8 +134,12 @@ static void kvstore_init()
erase_size = sec_bd->get_erase_size();
// We must be able to hold at least 10 small keys (20 program sectors) and master record + internal data
// but minimum of 2 erase sectors, so that the garbage collection way work
ul_bd_size = align_up(program_size * PAGES_ESTIMATE, erase_size * 2);
rbp_bd_size = align_up(program_size * PAGES_ESTIMATE, erase_size * 2);
// Also, the total size needs to be large enough for set_add_data_set_key_value_five_Kbytes (5KB value)
// and to allow for overheads, we require at least 2 * 8KB for two areas per TDBStore
ul_bd_size = program_size * PAGES_ESTIMATE;
ul_bd_size = ul_bd_size > MIN_TDBSTORE_SIZE ? ul_bd_size : MIN_TDBSTORE_SIZE;
ul_bd_size = align_up(ul_bd_size, erase_size * 2);
rbp_bd_size = ul_bd_size;
res = sec_bd->deinit();
TEST_ASSERT_EQUAL_ERROR_CODE(MBED_SUCCESS, res);