diff options
| author | Luc Verhaegen | 2014-08-13 07:55:06 +0200 |
|---|---|---|
| committer | Hans de Goede | 2014-11-25 13:38:46 +0100 |
| commit | 7f2c521f90f546fd4077038730196e0990da933c (patch) | |
| tree | 1de6d711278cf7c12f20c2876cda722fa91a0ee7 /include | |
| parent | 0bd51251331a341dae8c19ae2e36a3262ae2ef72 (diff) | |
sunxi: video: Add cfb console driver for sunxi
This adds a fixed mode hdmi driver for the sunxi platform. The fixed
mode is a relatively safe 1024x768, more complete EDID handling is
currently not provided. Only HDMI is supported today.
This code is enabled when HPD detects an attached monitor.
Current config is such that 8MB is shaved off at the top of the RAM.
This avoids several memory handling issues, most significant is the fact
that on linux on ARM you are not allowed to remap known RAM as IO. A
clued in display driver will be able to recycle this reserved RAM in
future though.
cfbconsole was chosen as it provides the most important functionality: a
working u-boot console, allowing for the debugging of certain issues
without the need for a UART.
Signed-off-by: Luc Verhaegen <libv@skynet.be>
[hdegoede@redhat.com: Major cleanups and some small bugfixes]
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Anatolij Gustschin <agust@denx.de>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
Diffstat (limited to 'include')
| -rw-r--r-- | include/configs/sunxi-common.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/include/configs/sunxi-common.h b/include/configs/sunxi-common.h index ce038eddf04..900ef525693 100644 --- a/include/configs/sunxi-common.h +++ b/include/configs/sunxi-common.h @@ -197,6 +197,28 @@ #define CONFIG_SPL_GPIO_SUPPORT #define CONFIG_CMD_GPIO +#ifdef CONFIG_VIDEO +/* + * The amount of RAM that is reserved for the FB. This will not show up as + * RAM to the kernel, but will be reclaimed by a KMS driver in future. + */ +#define CONFIG_SUNXI_FB_SIZE (8 << 20) + +#define CONFIG_VIDEO_SUNXI + +#define CONFIG_CFB_CONSOLE +#define CONFIG_VIDEO_SW_CURSOR +#define CONFIG_VIDEO_LOGO + +/* allow both serial and cfb console. */ +#define CONFIG_CONSOLE_MUX +/* stop x86 thinking in cfbconsole from trying to init a pc keyboard */ +#define CONFIG_VGA_AS_SINGLE_DEVICE + +#define CONFIG_SYS_MEM_TOP_HIDE ((CONFIG_SUNXI_FB_SIZE + 0xFFF) & ~0xFFF) + +#endif /* CONFIG_VIDEO */ + /* Ethernet support */ #ifdef CONFIG_SUNXI_EMAC #define CONFIG_MII /* MII PHY management */ @@ -225,6 +247,7 @@ #endif #define CONFIG_MISC_INIT_R +#define CONFIG_SYS_CONSOLE_IS_IN_ENV #ifndef CONFIG_SPL_BUILD #include <config_distro_defaults.h> @@ -266,7 +289,25 @@ #include <config_distro_bootcmd.h> +#define CONSOLE_STDIN_SETTINGS \ + "stdin=serial\0" + +#ifdef CONFIG_VIDEO +#define CONSOLE_STDOUT_SETTINGS \ + "stdout=serial,vga\0" \ + "stderr=serial,vga\0" +#else +#define CONSOLE_STDOUT_SETTINGS \ + "stdout=serial\0" \ + "stderr=serial\0" +#endif + +#define CONSOLE_ENV_SETTINGS \ + CONSOLE_STDIN_SETTINGS \ + CONSOLE_STDOUT_SETTINGS + #define CONFIG_EXTRA_ENV_SETTINGS \ + CONSOLE_ENV_SETTINGS \ MEM_LAYOUT_ENV_SETTINGS \ "fdtfile=" CONFIG_FDTFILE "\0" \ "console=ttyS0,115200\0" \ |