V3s_Allwinner
/
uboot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases 2 Wiki Activity

ARM: hikey: hi6220: Migrate over to DM_SERIAL and use UART3 by default. 

Use DM for the pl01x serial driver on hikey. Also allow UART0 or
UART3 to be chosen via Kconfig.

By default we now output to UART3 as the latest version of ATF outputs
to this UART. Also UART3 comes out on the LS connector, as opposed to
UART0 which goes to a unpopulated header.

As part of this change we also enable CONFIG_BOARD_EARLY_INIT_F and
call the pinmux configuration code for the UART. Before we were
relying on ATF having already configured the pin configuration.

NB: Upstream Linux kernel doesn't yet support UART3, so serial console
will still be output on UART0 when booting a upstream kernel.

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Peter Griffin 2015-09-10 21:55:17 +01:00 committed by Tom Rini
parent efd7b60a81
commit 9c71bcdc81
5 changed files with 56 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/arm/Kconfig
View File

@ -604,6 +604,7 @@ config TARGET_HIKEY
select ARM64
select DM
select DM_GPIO
select DM_SERIAL
help
Support for HiKey 96boards platform. It features a HI6220
SoC, with 8xA53 CPU, mali450 gpu, and 1GB RAM.
@ -612,7 +613,6 @@ config TARGET_LS1021AQDS
bool "Support ls1021aqds"
select CPU_V7
select SUPPORT_SPL
config TARGET_LS1021ATWR
bool "Support ls1021atwr"
select CPU_V7

7
board/hisilicon/hikey/Kconfig
View File

@ -12,4 +12,11 @@ config SYS_SOC
config SYS_CONFIG_NAME
default "hikey"
config CONS_INDEX
int "UART used for console"
range 1 4
default 4
help
The hi6220 SoC has 5 UARTs. For example to use UART0 enter 1 here.
endif

43
board/hisilicon/hikey/hikey.c
View File

@ -6,6 +6,7 @@
*/
#include <common.h>
#include <dm.h>
#include <dm/platform_data/serial_pl01x.h>
#include <errno.h>
#include <malloc.h>
#include <netdev.h>
@ -69,6 +70,48 @@ U_BOOT_DEVICES(hi6220_gpios) = {
DECLARE_GLOBAL_DATA_PTR;
static const struct pl01x_serial_platdata serial_platdata = {
#if CONFIG_CONS_INDEX == 1
.base = HI6220_UART0_BASE,
#elif CONFIG_CONS_INDEX == 4
.base = HI6220_UART3_BASE,
#else
#error "Unsuported console index value."
#endif
.type = TYPE_PL011,
.clock = 19200000
};
U_BOOT_DEVICE(hikey_seriala) = {
.name = "serial_pl01x",
.platdata = &serial_platdata,
};
#ifdef CONFIG_BOARD_EARLY_INIT_F
int board_uart_init(void)
{
switch (CONFIG_CONS_INDEX) {
case 1:
hi6220_pinmux_config(PERIPH_ID_UART0);
break;
case 4:
hi6220_pinmux_config(PERIPH_ID_UART3);
break;
default:
debug("%s: Unsupported UART selected\n", __func__);
return -1;
}
return 0;
}
int board_early_init_f(void)
{
board_uart_init();
return 0;
}
#endif
struct peri_sc_periph_regs *peri_sc =
(struct peri_sc_periph_regs *)HI6220_PERI_BASE;

1
configs/hikey_defconfig
View File

@ -1,2 +1,3 @@
CONFIG_ARM=y
CONFIG_SYS_MALLOC_F_LEN=0x2000
# CONFIG_CMD_IMLS is not set

11
include/configs/hikey.h
View File

@ -31,6 +31,8 @@
/* Flat Device Tree Definitions */
#define CONFIG_OF_LIBFDT
#define CONFIG_BOARD_EARLY_INIT_F
/* Physical Memory Map */
/* CONFIG_SYS_TEXT_BASE needs to align with where ATF loads bl33.bin */
@ -59,13 +61,8 @@
/* Size of malloc() pool */
#define CONFIG_SYS_MALLOC_LEN (CONFIG_ENV_SIZE + SZ_8M)
/* PL011 Serial Configuration */
#define CONFIG_PL011_SERIAL
#define CONFIG_PL011_CLOCK 19200000
#define CONFIG_PL01x_PORTS {(void *)0xF8015000}
#define CONFIG_CONS_INDEX 0
/* Serial port PL010/PL011 through the device model */
#define CONFIG_PL01X_SERIAL
#define CONFIG_BAUDRATE 115200
#define CONFIG_CMD_USB