diff options
Diffstat (limited to 'target/linux/mvebu/patches-3.8/018-arm_mvebu_dw_apb_uart.patch')
| -rw-r--r-- | target/linux/mvebu/patches-3.8/018-arm_mvebu_dw_apb_uart.patch | 88 |
1 files changed, 0 insertions, 88 deletions
diff --git a/target/linux/mvebu/patches-3.8/018-arm_mvebu_dw_apb_uart.patch b/target/linux/mvebu/patches-3.8/018-arm_mvebu_dw_apb_uart.patch deleted file mode 100644 index 29c199cad4..0000000000 --- a/target/linux/mvebu/patches-3.8/018-arm_mvebu_dw_apb_uart.patch +++ /dev/null @@ -1,88 +0,0 @@ -From 3487b074a742bc3300683e91e3ade383b659fbe9 Mon Sep 17 00:00:00 2001 -From: Gregory CLEMENT <gregory.clement@free-electrons.com> -Date: Tue, 4 Dec 2012 18:04:59 +0100 -Subject: [PATCH] arm: mvebu: Use dw-apb-uart instead of ns16650 as UART - driver - -The UART controller used in the Armada 370 and Armada XP SoCs is the -Synopsys DesignWare 8250 (aka Synopsys DesignWare ABP UART). The -improper use of the ns16550 can lead to a kernel oops during boot if -a character is sent to the UART before the initialization of the -driver. The DW APB has an extra interrupt that gets raised when -writing to the LCR when busy. This explains why we need to use -dw-apb-uart driver to handle this. - -Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> ---- - arch/arm/boot/dts/armada-370-xp.dtsi | 6 ++++-- - arch/arm/boot/dts/armada-xp.dtsi | 6 ++++-- - arch/arm/configs/mvebu_defconfig | 1 + - 3 files changed, 9 insertions(+), 4 deletions(-) - -diff --git a/arch/arm/boot/dts/armada-370-xp.dtsi b/arch/arm/boot/dts/armada-370-xp.dtsi -index cf6c48a..4c0abe8 100644 ---- a/arch/arm/boot/dts/armada-370-xp.dtsi -+++ b/arch/arm/boot/dts/armada-370-xp.dtsi -@@ -50,17 +50,19 @@ - ranges; - - serial@d0012000 { -- compatible = "ns16550"; -+ compatible = "snps,dw-apb-uart"; - reg = <0xd0012000 0x100>; - reg-shift = <2>; - interrupts = <41>; -+ reg-io-width = <4>; - status = "disabled"; - }; - serial@d0012100 { -- compatible = "ns16550"; -+ compatible = "snps,dw-apb-uart"; - reg = <0xd0012100 0x100>; - reg-shift = <2>; - interrupts = <42>; -+ reg-io-width = <4>; - status = "disabled"; - }; - -diff --git a/arch/arm/boot/dts/armada-xp.dtsi b/arch/arm/boot/dts/armada-xp.dtsi -index 367aa3f..8a85ffe 100644 ---- a/arch/arm/boot/dts/armada-xp.dtsi -+++ b/arch/arm/boot/dts/armada-xp.dtsi -@@ -42,17 +42,19 @@ - - soc { - serial@d0012200 { -- compatible = "ns16550"; -+ compatible = "snps,dw-apb-uart"; - reg = <0xd0012200 0x100>; - reg-shift = <2>; - interrupts = <43>; -+ reg-io-width = <4>; - status = "disabled"; - }; - serial@d0012300 { -- compatible = "ns16550"; -+ compatible = "snps,dw-apb-uart"; - reg = <0xd0012300 0x100>; - reg-shift = <2>; - interrupts = <44>; -+ reg-io-width = <4>; - status = "disabled"; - }; - -diff --git a/arch/arm/configs/mvebu_defconfig b/arch/arm/configs/mvebu_defconfig -index a702fb3..3ba35f1 100644 ---- a/arch/arm/configs/mvebu_defconfig -+++ b/arch/arm/configs/mvebu_defconfig -@@ -34,6 +34,7 @@ CONFIG_MARVELL_PHY=y - CONFIG_SERIAL_8250=y - CONFIG_SERIAL_8250_CONSOLE=y - CONFIG_SERIAL_OF_PLATFORM=y -+CONFIG_SERIAL_8250_DW=y - CONFIG_I2C=y - CONFIG_I2C_MV64XXX=y - CONFIG_GPIOLIB=y --- -1.7.10.4 - |