diff options
Diffstat (limited to 'post/cpu/ppc4xx/ocm.c')
| -rw-r--r-- | post/cpu/ppc4xx/ocm.c | 73 |
1 files changed, 0 insertions, 73 deletions
diff --git a/post/cpu/ppc4xx/ocm.c b/post/cpu/ppc4xx/ocm.c deleted file mode 100644 index bbf2d9a8ee..0000000000 --- a/post/cpu/ppc4xx/ocm.c +++ /dev/null @@ -1,73 +0,0 @@ -/* - * (C) Copyright 2008 Ilya Yanok, EmCraft Systems, yanok@emcraft.com - * - * Developed for DENX Software Engineering GmbH - * - * SPDX-License-Identifier: GPL-2.0+ - */ -#include <common.h> - -/* - * This test attempts to verify on-chip memory (OCM). Result is written - * to the scratch register and if test succeed it won't be run till next - * power on. - */ - -#include <post.h> - -#include <asm/io.h> - -DECLARE_GLOBAL_DATA_PTR; - -#define OCM_TEST_PATTERN1 0x55555555 -#define OCM_TEST_PATTERN2 0xAAAAAAAA - -#if CONFIG_POST & CONFIG_SYS_POST_OCM - -static uint ocm_status_read(void) -{ - return in_be32((void *)CONFIG_SYS_OCM_STATUS_ADDR) & - CONFIG_SYS_OCM_STATUS_MASK; -} - -static void ocm_status_write(uint value) -{ - out_be32((void *)CONFIG_SYS_OCM_STATUS_ADDR, value | - (in_be32((void *)CONFIG_SYS_OCM_STATUS_ADDR) & - ~CONFIG_SYS_OCM_STATUS_MASK)); -} - -static inline int ocm_test_word(uint value, uint *address) -{ - uint read_value; - - *address = value; - sync(); - read_value = *address; - - return (read_value != value); -} - -int ocm_post_test(int flags) -{ - uint old_value; - int ret = 0; - uint *address = (uint*)CONFIG_SYS_OCM_BASE; - - if (ocm_status_read() == CONFIG_SYS_OCM_STATUS_OK) - return 0; - for (; address < (uint*)(CONFIG_SYS_OCM_BASE + CONFIG_SYS_OCM_SIZE); address++) { - old_value = *address; - if (ocm_test_word(OCM_TEST_PATTERN1, address) || - ocm_test_word(OCM_TEST_PATTERN2, address)) { - ret = 1; - *address = old_value; - printf("OCM POST failed at %p!\n", address); - break; - } - *address = old_value; - } - ocm_status_write(ret ? CONFIG_SYS_OCM_STATUS_FAIL : CONFIG_SYS_OCM_STATUS_OK); - return ret; -} -#endif /* CONFIG_POST & CONFIG_SYS_POST_OCM */ |