Add plat_crash_console_flush to platforms without it

Even though at this point plat_crash_console_flush is optional, it will
stop being optional in a following patch.

The console driver of warp7 doesn't support flush, so the implementation
is a placeholder.

TI had ``plat_crash_console_init`` and ``plat_crash_console_putc``, but
they weren't global so they weren't actually used. Also, they were
calling the wrong functions.

imx8_helpers.S only has placeholders for all of the functions.

Change-Id: I8d17bbf37c7dad74e134c61ceb92acb9af497718
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

plat/hisilicon/hikey/aarch64/hikey_helpers.S

@@ -12,6 +12,7 @@
 	.globl	platform_mem_init
 	.globl	plat_crash_console_init
 	.globl	plat_crash_console_putc
+	.globl	plat_crash_console_flush
 	.globl	plat_report_exception
 	.globl	plat_reset_handler
 
@@ -60,6 +61,19 @@ func plat_crash_console_putc
 	b	console_core_putc
 endfunc plat_crash_console_putc
 
+	/* ---------------------------------------------
+	 * int plat_crash_console_flush()
+	 * Function to force a write of all buffered
+	 * data that hasn't been output.
+	 * Out : return -1 on error else return 0.
+	 * Clobber list : x0, x1
+	 * ---------------------------------------------
+	 */
+func plat_crash_console_flush
+	mov_imm	x0, CRASH_CONSOLE_BASE
+	b	console_core_flush
+endfunc plat_crash_console_flush
+
 	/* ---------------------------------------------
 	 * void plat_report_exception(unsigned int type)
 	 * Function to report an unhandled exception

plat/hisilicon/hikey960/aarch64/hikey960_helpers.S

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2017-2018, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -14,6 +14,7 @@
 	.globl	platform_mem_init
 	.globl	plat_crash_console_init
 	.globl	plat_crash_console_putc
+	.globl	plat_crash_console_flush
 	.globl	plat_report_exception
 	.globl	plat_reset_handler
 	.globl	clr_ex
@@ -64,6 +65,19 @@ func plat_crash_console_putc
 	b	console_core_putc
 endfunc plat_crash_console_putc
 
+	/* ---------------------------------------------
+	 * int plat_crash_console_flush()
+	 * Function to force a write of all buffered
+	 * data that hasn't been output.
+	 * Out : return -1 on error else return 0.
+	 * Clobber list : x0, x1
+	 * ---------------------------------------------
+	 */
+func plat_crash_console_flush
+	mov_imm	x0, CRASH_CONSOLE_BASE
+	b	console_core_flush
+endfunc plat_crash_console_flush
+
 	/* ---------------------------------------------
 	 * void plat_report_exception(unsigned int type)
 	 * Function to report an unhandled exception

plat/imx/common/imx8_helpers.S

@@ -16,6 +16,7 @@
 	.globl	plat_secondary_cold_boot_setup
 	.globl	plat_crash_console_init
 	.globl	plat_crash_console_putc
+	.globl	plat_crash_console_flush
 	.globl	platform_mem_init
 	.globl  imx_mailbox_init
 
@@ -106,6 +107,7 @@ func plat_secondary_cold_boot_setup
 endfunc plat_secondary_cold_boot_setup
 
 func plat_crash_console_init
+	mov	x0, #1
 	ret
 endfunc plat_crash_console_init
 
@@ -113,6 +115,11 @@ func plat_crash_console_putc
 	ret
 endfunc plat_crash_console_putc
 
+func plat_crash_console_flush
+	mov	x0, #0
+	ret
+endfunc plat_crash_console_flush
+
 func platform_mem_init
 	ret
 endfunc platform_mem_init

plat/imx/imx7/warp7/aarch32/warp7_helpers.S

@@ -14,6 +14,7 @@
 	.globl	plat_get_my_entrypoint
 	.globl	plat_crash_console_init
 	.globl	plat_crash_console_putc
+	.globl	plat_crash_console_flush
 	.globl	plat_panic_handler
 
 	/* ---------------------------------------------
@@ -45,6 +46,12 @@ func plat_crash_console_putc
 	b	imx_crash_uart_putc
 endfunc plat_crash_console_putc
 
+func plat_crash_console_flush
+	/* Placeholder */
+	mov	r0, #0
+	bx	lr
+endfunc plat_crash_console_flush
+
 func plat_panic_handler
 	mov	r3, #HAB_ROM_VECTOR_TABLE_FAILSAFE
 	ldr	r3, [r3, #0]

plat/marvell/common/aarch64/marvell_helpers.S

@@ -18,6 +18,7 @@
 	.weak	plat_my_core_pos
 	.globl	plat_crash_console_init
 	.globl	plat_crash_console_putc
+	.globl	plat_crash_console_flush
 	.globl	platform_mem_init
 	.globl	disable_mmu_dcache
 	.globl	invalidate_tlb_all
@@ -79,6 +80,19 @@ func plat_crash_console_putc
 	b	console_core_putc
 endfunc plat_crash_console_putc
 
+	/* ---------------------------------------------
+	 * int plat_crash_console_flush()
+	 * Function to force a write of all buffered
+	 * data that hasn't been output.
+	 * Out : return -1 on error else return 0.
+	 * Clobber list : x0, x1
+	 * ---------------------------------------------
+	 */
+func plat_crash_console_flush
+	mov_imm	x0, PLAT_MARVELL_CRASH_UART_BASE
+	b	console_core_flush
+endfunc plat_crash_console_flush
+
 	/* ---------------------------------------------------------------------
 	 * We don't need to carry out any memory initialization on ARM
 	 * platforms. The Secure RAM is accessible straight away.

plat/nvidia/tegra/common/aarch64/tegra_helpers.S

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015-2017, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -36,6 +36,7 @@
 	.globl	platform_mem_init
 	.globl	plat_crash_console_init
 	.globl	plat_crash_console_putc
+	.globl	plat_crash_console_flush
 	.globl	tegra_secure_entrypoint
 	.globl	plat_reset_handler
 
@@ -240,6 +241,20 @@ func plat_crash_console_putc
 	b	console_core_putc
 endfunc plat_crash_console_putc
 
+	/* ---------------------------------------------
+	 * int plat_crash_console_flush()
+	 * Function to force a write of all buffered
+	 * data that hasn't been output.
+	 * Out : return -1 on error else return 0.
+	 * Clobber list : x0, x1
+	 * ---------------------------------------------
+	 */
+func plat_crash_console_flush
+	adr	x0, tegra_console_base
+	ldr	x0, [x0]
+	b	console_core_flush
+endfunc plat_crash_console_flush
+
 	/* ---------------------------------------------------
 	 * Function to handle a platform reset and store
 	 * input parameters passed by BL2.

plat/ti/k3/common/k3_helpers.S

@@ -100,13 +100,13 @@ endfunc plat_my_core_pos
 	 * Clobber list : x0 - x4
 	 * ---------------------------------------------
 	 */
+	.globl plat_crash_console_init
 func plat_crash_console_init
 	mov_imm	x0, CRASH_CONSOLE_BASE
 	mov_imm	x1, CRASH_CONSOLE_CLK
 	mov_imm	x2, CRASH_CONSOLE_BAUD_RATE
 	mov w3, #0x0
-	b	console_core_init
+	b	console_16550_core_init
-
 endfunc plat_crash_console_init
 
 	/* ---------------------------------------------
@@ -116,7 +116,22 @@ endfunc plat_crash_console_init
 	 * Clobber list : x1, x2
 	 * ---------------------------------------------
 	 */
+	.globl plat_crash_console_putc
 func plat_crash_console_putc
 	mov_imm	x1, CRASH_CONSOLE_BASE
-	b	console_core_putc
+	b	console_16550_core_putc
 endfunc plat_crash_console_putc
+
+	/* ---------------------------------------------
+	 * int plat_crash_console_flush()
+	 * Function to force a write of all buffered
+	 * data that hasn't been output.
+	 * Out : return -1 on error else return 0.
+	 * Clobber list : x0, x1
+	 * ---------------------------------------------
+	 */
+	.globl plat_crash_console_flush
+func plat_crash_console_flush
+	mov_imm	x0, CRASH_CONSOLE_BASE
+	b	console_16550_core_flush
+endfunc plat_crash_console_flush