diff options
Diffstat (limited to 'src/lib')
| -rw-r--r-- | src/lib/cbmem_console.c | 34 |
1 files changed, 22 insertions, 12 deletions
diff --git a/src/lib/cbmem_console.c b/src/lib/cbmem_console.c index 770c1d2c9b..628d3b9c1f 100644 --- a/src/lib/cbmem_console.c +++ b/src/lib/cbmem_console.c @@ -83,7 +83,7 @@ static inline void init_console_ptr(void *storage, u32 total_space, int flags) { struct cbmem_console *cbm_cons_p = storage; - if (!cbm_cons_p) { + if (!cbm_cons_p || total_space == 0) { current_console_set(NULL); return; } @@ -209,22 +209,32 @@ static void copy_console_buffer(struct cbmem_console *old_cons_p, void cbmemc_reinit(void) { - struct cbmem_console *cbm_cons_p = NULL; + struct cbmem_console *cbm_cons_p; + const size_t size = CONFIG_CONSOLE_CBMEM_BUFFER_SIZE; int flags = CBMEMC_APPEND; - if (ENV_ROMSTAGE && (CONFIG_CONSOLE_PRERAM_BUFFER_SIZE == 0)) - return; - - /* If CBMEM entry already existed, old contents is not altered. */ - cbm_cons_p = cbmem_add(CBMEM_ID_CONSOLE, - CONFIG_CONSOLE_CBMEM_BUFFER_SIZE); + /* No appending when no preram console available and adding for + * the first time. */ + if (!ENV_RAMSTAGE && _preram_cbmem_console_size == 0) + flags = CBMEMC_RESET; - /* Clear old contents of CBMEM buffer. */ - if (ENV_ROMSTAGE || (CONFIG_CONSOLE_PRERAM_BUFFER_SIZE == 0)) + /* Need to reset the newly added cbmem console in romstage. */ + if (ENV_ROMSTAGE) flags |= CBMEMC_RESET; - init_console_ptr(cbm_cons_p, - CONFIG_CONSOLE_CBMEM_BUFFER_SIZE, flags); + /* Need to reset the newly added cbmem console in ramstage + * when there was no console in preram environment. */ + if (ENV_RAMSTAGE) { + cbm_cons_p = cbmem_find(CBMEM_ID_CONSOLE); + if (cbm_cons_p == NULL) + flags |= CBMEMC_RESET; + } + + /* If CBMEM entry already existed, old contents is not altered. */ + cbm_cons_p = cbmem_add(CBMEM_ID_CONSOLE, size); + + init_console_ptr(cbm_cons_p, size, flags); } + /* Call cbmemc_reinit() at CAR migration time. */ CAR_MIGRATE(cbmemc_reinit) |