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synquacer: Enable PL011 UART Console

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Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
This commit is contained in:
Sumit Garg 2018-06-15 14:34:42 +05:30
parent 85427debb1
commit 67b400705f
3 changed files with 55 additions and 0 deletions
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5
plat/socionext/synquacer/include/platform_def.h
View file

@ -18,6 +18,11 @@
#define BL31_SIZE 0x00080000
#define BL31_LIMIT (BL31_BASE + BL31_SIZE)
/* UART related constants */
#define PLAT_SQ_BOOT_UART_BASE 0x2A400000
#define PLAT_SQ_BOOT_UART_CLK_IN_HZ 62500000
#define SQ_CONSOLE_BAUDRATE 115200
#define SQ_BOOT_CFG_ADDR 0x45410000
#define PLAT_SQ_PRIMARY_CPU_SHIFT 8
#define PLAT_SQ_PRIMARY_CPU_BIT_WIDTH 6

11
plat/socionext/synquacer/sq_bl31_setup.c
View file

@ -9,11 +9,22 @@
#include <platform_def.h>
#include <assert.h>
#include <bl_common.h>
#include <pl011.h>
#include <debug.h>
static console_pl011_t console;
void bl31_early_platform_setup(bl31_params_t *from_bl2,
void *plat_params_from_bl2)
{
/* Initialize the console to provide early debug support */
(void)console_pl011_register(PLAT_SQ_BOOT_UART_BASE,
PLAT_SQ_BOOT_UART_CLK_IN_HZ,
SQ_CONSOLE_BAUDRATE, &console);
console_set_scope(&console.console, CONSOLE_FLAG_BOOT |
CONSOLE_FLAG_RUNTIME);
/* There are no parameters from BL2 if BL31 is a reset vector */
assert(from_bl2 == NULL);
assert(plat_params_from_bl2 == NULL);

39
plat/socionext/synquacer/sq_helpers.S
View file

@ -14,6 +14,9 @@
.global platform_mem_init
.global plat_is_my_cpu_primary
.global plat_secondary_cold_boot_setup
.global plat_crash_console_init
.global plat_crash_console_putc
.global plat_crash_console_flush
/*
* unsigned int sq_calc_core_pos(u_register_t mpidr)
@ -69,3 +72,39 @@ func plat_is_my_cpu_primary
cset w0, eq
ret x9
endfunc plat_is_my_cpu_primary
/*
* int plat_crash_console_init(void)
* Function to initialize the crash console
* without a C Runtime to print crash report.
* Clobber list : x0, x1, x2
*/
func plat_crash_console_init
mov_imm x0, PLAT_SQ_BOOT_UART_BASE
mov_imm x1, PLAT_SQ_BOOT_UART_CLK_IN_HZ
mov_imm x2, SQ_CONSOLE_BAUDRATE
b console_pl011_core_init
endfunc plat_crash_console_init
/*
* int plat_crash_console_putc(int c)
* Function to print a character on the crash
* console without a C Runtime.
* Clobber list : x1, x2
*/
func plat_crash_console_putc
mov_imm x1, PLAT_SQ_BOOT_UART_BASE
b console_pl011_core_putc
endfunc plat_crash_console_putc
/*
* int plat_crash_console_flush(int c)
* 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_SQ_BOOT_UART_BASE
b console_pl011_core_flush
endfunc plat_crash_console_flush