v6:
Remove some unnecessary reset patch.
Refine patch format.
Add detail explain of SOC display reset bits.
v5:
Add lost reset define.
v4:
Add necessary reset control for ast2600.
Add chip caps for futher use.
These code are test on AST2500 and AST2600 by below steps.
1. Add below config to turn VT and LOGO on.
CONFIG_TTY=y
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_VT_CONSOLE_SLEEP=y
CONFIG_HW_CONSOLE=y
CONFIG_VT_HW_CONSOLE_BINDING=y
CONFIG_UNIX98_PTYS=y
CONFIG_LDISC_AUTOLOAD=y
CONFIG_DEVMEM=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
CONFIG_LOGO=y
CONFIG_LOGO_LINUX_CLUT224=y
2. The Linux logo will be shown on the screen, when the BMC boot in Linux.
v3:
Refine the patch for clear separate purpose.
Skip to send devicetree patch
v2:
Remove some unnecessary patch.
Refine for reviwer request.
v1:
First add patch.
Joel Stanley (2):
ARM: dts: aspeed: Add GFX node to AST2600
ARM: dts: aspeed: ast2600-evb: Enable GFX device
Tommy Haung (3):
drm/aspeed: Update INTR_STS handling
drm/aspeed: Add AST2600 chip support
ARM: dtsi: aspeed: Modified gfx reset control
arch/arm/boot/dts/aspeed-ast2600-evb.dts | 18 ++++++++++++++++++
arch/arm/boot/dts/aspeed-g6.dtsi | 11 +++++++++++
drivers/gpu/drm/aspeed/aspeed_gfx.h | 1 +
drivers/gpu/drm/aspeed/aspeed_gfx_drv.c | 15 ++++++++++++++-
4 files changed, 44 insertions(+), 1 deletion(-)
--
2.17.1
Remove the ast2500-gfx from aspeed-g6.dtsi.
In the AST2600, the ASPEED_RESET_CRT1 is replaced by
ASPEED_RESET_GRAPHICS. This is no differnce between these two reset
behavior but reigster location is changed. The HW controller states
and FW programming resgiter will be reset by CRT reset controller bit
(SCU040[13]). And another part HW controller will be reset by
Graphics controller bit (SCU040[26]). These two reset bit need be
de-assert then the SOC display will be active.
Signed-off-by: Tommy Haung <[email protected]>
---
arch/arm/boot/dts/aspeed-g6.dtsi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/aspeed-g6.dtsi b/arch/arm/boot/dts/aspeed-g6.dtsi
index e38c3742761b..7cc99bc68558 100644
--- a/arch/arm/boot/dts/aspeed-g6.dtsi
+++ b/arch/arm/boot/dts/aspeed-g6.dtsi
@@ -352,7 +352,7 @@
};
gfx: display@1e6e6000 {
- compatible = "aspeed,ast2600-gfx", "aspeed,ast2500-gfx", "syscon";
+ compatible = "aspeed,ast2600-gfx", "syscon";
reg = <0x1e6e6000 0x1000>;
reg-io-width = <4>;
clocks = <&syscon ASPEED_CLK_GATE_D1CLK>;
--
2.17.1