127 lines
3.8 KiB
C
127 lines
3.8 KiB
C
#include "startup-tests.h"
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uint32_t startup_test_perform_ccm_ram_check(void)
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{
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const void *ccmram_base = (void *)0x10000000UL;
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const uint32_t ccmram_size = 64U * 1024UL;
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volatile uint32_t *word_ptr;
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uint32_t target_val;
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uint32_t idx;
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uint32_t ret = 0UL;
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/* Perform inversion test with 0x55 and 0xAA, Part 1 */
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for (idx = 0, word_ptr = (volatile uint32_t *)ccmram_base; idx < ccmram_size / 4U; idx++) {
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word_ptr[idx] = idx & 1 ? 0x55AA55AAUL : 0xAA55AA55UL;
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}
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for (idx = 0, word_ptr = (volatile uint32_t *)ccmram_base; idx < ccmram_size / 4U; idx++) {
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target_val = idx & 1 ? 0x55AA55AAUL : 0xAA55AA55UL;
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if (target_val != word_ptr[idx]) {
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ret = (uint32_t)&word_ptr[idx];
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goto exit_ret_address;
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}
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}
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/* Perform inversion test with 0x55 and 0xAA, Part 2 */
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for (idx = 0, word_ptr = (volatile uint32_t *)ccmram_base; idx < ccmram_size / 4U; idx++) {
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word_ptr[idx] = idx & 1 ? 0xAA55AA55UL : 0x55AA55AAUL;
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}
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for (idx = 0, word_ptr = (volatile uint32_t *)ccmram_base; idx < ccmram_size / 4U; idx++) {
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target_val = idx & 1 ? 0xAA55AA55UL : 0x55AA55AAUL;
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if (target_val != word_ptr[idx]) {
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ret = (uint32_t)&word_ptr[idx];
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goto exit_ret_address;
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}
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}
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/* Perform static test with 0xFF */
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for (idx = 0, word_ptr = (volatile uint32_t *)ccmram_base; idx < ccmram_size / 4U; idx++) {
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word_ptr[idx] = 0xFFFFFFFFUL;
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}
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for (idx = 0, word_ptr = (volatile uint32_t *)ccmram_base; idx < ccmram_size / 4U; idx++) {
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target_val = 0xFFFFFFFFUL;
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if (target_val != word_ptr[idx]) {
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ret = (uint32_t)&word_ptr[idx];
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goto exit_ret_address;
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}
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}
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/* Perform static test with 0x00 */
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for (idx = 0, word_ptr = (volatile uint32_t *)ccmram_base; idx < ccmram_size / 4U; idx++) {
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word_ptr[idx] = 0x0UL;
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}
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for (idx = 0, word_ptr = (volatile uint32_t *)ccmram_base; idx < ccmram_size / 4U; idx++) {
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target_val = 0x0UL;
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if (target_val != word_ptr[idx]) {
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ret = (uint32_t)&word_ptr[idx];
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goto exit_ret_address;
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}
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}
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exit_ret_address:
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return ret;
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}
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uint32_t startup_test_perform_system_ram_check()
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{
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const void *ram_base = (void *)0x20000000UL;
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const uint32_t ram_size = 128U * 1024UL;
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volatile uint32_t *word_ptr;
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uint32_t target_val;
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uint32_t idx;
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uint32_t ret = 0UL;
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/* Perform inversion test with 0x55 and 0xAA, Part 1 */
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for (idx = 0, word_ptr = (volatile uint32_t *)ram_base; idx < ram_size / 4U; idx++) {
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word_ptr[idx] = idx & 1 ? 0x55AA55AAUL : 0xAA55AA55UL;
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}
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for (idx = 0, word_ptr = (volatile uint32_t *)ram_base; idx < ram_size / 4U; idx++) {
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target_val = idx & 1 ? 0x55AA55AAUL : 0xAA55AA55UL;
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if (target_val != word_ptr[idx]) {
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ret = (uint32_t)&word_ptr[idx];
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goto exit_ret_address;
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}
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}
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/* Perform inversion test with 0x55 and 0xAA, Part 2 */
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for (idx = 0, word_ptr = (volatile uint32_t *)ram_base; idx < ram_size / 4U; idx++) {
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word_ptr[idx] = idx & 1 ? 0xAA55AA55UL : 0x55AA55AAUL;
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}
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for (idx = 0, word_ptr = (volatile uint32_t *)ram_base; idx < ram_size / 4U; idx++) {
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target_val = idx & 1 ? 0xAA55AA55UL : 0x55AA55AAUL;
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if (target_val != word_ptr[idx]) {
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ret = (uint32_t)&word_ptr[idx];
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goto exit_ret_address;
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}
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}
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/* Perform static test with 0xFF */
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for (idx = 0, word_ptr = (volatile uint32_t *)ram_base; idx < ram_size / 4U; idx++) {
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word_ptr[idx] = 0xFFFFFFFFUL;
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}
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for (idx = 0, word_ptr = (volatile uint32_t *)ram_base; idx < ram_size / 4U; idx++) {
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target_val = 0xFFFFFFFFUL;
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if (target_val != word_ptr[idx]) {
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ret = (uint32_t)&word_ptr[idx];
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goto exit_ret_address;
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}
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}
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/* Perform static test with 0x00 */
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for (idx = 0, word_ptr = (volatile uint32_t *)ram_base; idx < ram_size / 4U; idx++) {
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word_ptr[idx] = 0x0UL;
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}
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for (idx = 0, word_ptr = (volatile uint32_t *)ram_base; idx < ram_size / 4U; idx++) {
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target_val = 0x0UL;
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if (target_val != word_ptr[idx]) {
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ret = (uint32_t)&word_ptr[idx];
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goto exit_ret_address;
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}
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}
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exit_ret_address:
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return ret;
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}
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