* [PATCH 1/6] Documentation: DT: Add bindings for Spreadtrum serial
2014-09-29 11:48 [PATCH 0/6] Add Spreadtrum Shark64 SoC support zhang.lyra at gmail.com
@ 2014-09-29 11:48 ` zhang.lyra at gmail.com
2014-09-29 11:48 ` [PATCH 2/6] arm64: Add DTS support for Spreadtrum's Shark64 SoC zhang.lyra at gmail.com
` (4 subsequent siblings)
5 siblings, 0 replies; 11+ messages in thread
From: zhang.lyra at gmail.com @ 2014-09-29 11:48 UTC (permalink / raw)
To: linux-arm-kernel
From: "chunyan.zhang" <chunyan.zhang@spreadtrum.com>
Adds the device-tree documentation for Spreadtrum's serial.
Signed-off-by: chunyan.zhang <chunyan.zhang@spreadtrum.com>
---
.../devicetree/bindings/serial/of-serial.txt | 1 +
1 file changed, 1 insertion(+)
diff --git a/Documentation/devicetree/bindings/serial/of-serial.txt b/Documentation/devicetree/bindings/serial/of-serial.txt
index 7705477..a0bb1d1 100644
--- a/Documentation/devicetree/bindings/serial/of-serial.txt
+++ b/Documentation/devicetree/bindings/serial/of-serial.txt
@@ -14,6 +14,7 @@ Required properties:
- "altr,16550-FIFO32"
- "altr,16550-FIFO64"
- "altr,16550-FIFO128"
+ - "sprd,serial"
- "serial" if the port type is unknown.
- reg : offset and length of the register set for the device.
- interrupts : should contain uart interrupt.
--
1.7.9.5
^ permalink raw reply related [flat|nested] 11+ messages in thread* [PATCH 2/6] arm64: Add DTS support for Spreadtrum's Shark64 SoC
2014-09-29 11:48 [PATCH 0/6] Add Spreadtrum Shark64 SoC support zhang.lyra at gmail.com
2014-09-29 11:48 ` [PATCH 1/6] Documentation: DT: Add bindings for Spreadtrum serial zhang.lyra at gmail.com
@ 2014-09-29 11:48 ` zhang.lyra at gmail.com
2014-09-29 14:55 ` Andreas Färber
2014-09-29 11:48 ` [PATCH 3/6] arm64: dts/Makefile: Add " zhang.lyra at gmail.com
` (3 subsequent siblings)
5 siblings, 1 reply; 11+ messages in thread
From: zhang.lyra at gmail.com @ 2014-09-29 11:48 UTC (permalink / raw)
To: linux-arm-kernel
From: "zhizhou.zhang" <zhizhou.zhang@spreadtrum.com>
Adds the device tree support for Spreadtrum Shark64 SoC based on ARMv8 architecture.
Signed-off-by: zhizhou.zhang <zhizhou.zhang@spreadtrum.com>
Signed-off-by: chunyan.zhang <chunyan.zhang@spreadtrum.com>
---
arch/arm64/boot/dts/sprd_shark64.dts | 110 ++++++++++++++++++++++++++++++++++
1 file changed, 110 insertions(+)
create mode 100644 arch/arm64/boot/dts/sprd_shark64.dts
diff --git a/arch/arm64/boot/dts/sprd_shark64.dts b/arch/arm64/boot/dts/sprd_shark64.dts
new file mode 100644
index 0000000..537cd6d
--- /dev/null
+++ b/arch/arm64/boot/dts/sprd_shark64.dts
@@ -0,0 +1,110 @@
+/*
+ * dts file for Spreadtrum(sprd) Shark64 SOC
+ *
+ * Copyright (C) 2014, Spreadtrum Communications Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ */
+
+/dts-v1/;
+
+/memreserve/ 0x80000000 0x00010000;
+
+/ {
+ model = "shark64 Board";
+ compatible = "sprd,shark64";
+ interrupt-parent = <&gic>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ chosen {
+ bootargs = "earlycon=serial_sprd,0x70000000";
+ };
+
+ cpus {
+ #address-cells = <2>;
+ #size-cells = <0>;
+
+ cpu at 0 {
+ device_type = "cpu";
+ compatible = "arm,armv8";
+ reg = <0x0 0x0>;
+ enable-method = "spin-table";
+ cpu-release-addr = <0x0 0x8000fff8>;
+ };
+ cpu at 1 {
+ device_type = "cpu";
+ compatible = "arm,armv8";
+ reg = <0x0 0x1>;
+ enable-method = "spin-table";
+ cpu-release-addr = <0x0 0x8000fff8>;
+ };
+ cpu at 2 {
+ device_type = "cpu";
+ compatible = "arm,armv8";
+ reg = <0x0 0x2>;
+ enable-method = "spin-table";
+ cpu-release-addr = <0x0 0x8000fff8>;
+ };
+ cpu at 3 {
+ device_type = "cpu";
+ compatible = "arm,armv8";
+ reg = <0x0 0x3>;
+ enable-method = "spin-table";
+ cpu-release-addr = <0x0 0x8000fff8>;
+ };
+ };
+
+ memory at 80000000 {
+ device_type = "memory";
+ reg = <0 0x80000000 0 0x20000000>;
+ };
+
+ aliases {
+ serial0 = &uart0;
+ serial1 = &uart1;
+ };
+
+ gic: interrupt-controller at 12001000 {
+ compatible = "arm,cortex-a15-gic", "arm,cortex-a9-gic";
+ #interrupt-cells = <3>;
+ #address-cells = <0>;
+ interrupt-controller;
+ reg = <0 0x12001000 0 0x1000>,
+ <0 0x12002000 0 0x1000>;
+ };
+
+ intc:interrupt-controller at 71400000 {
+ compatible = "sprd,intc";
+ #interrupt-cells = <0>;
+ interrupt-controller;
+ reg = <0 0x71400000 0 0x1000>,
+ <0 0x71500000 0 0x1000>,
+ <0 0x71600000 0 0x1000>,
+ <0 0x71700000 0 0x1000>;
+ };
+
+ timer {
+ compatible = "arm,armv8-timer";
+ interrupts = <1 13 0xff01>,
+ <1 14 0xff01>,
+ <1 11 0xff01>,
+ <1 10 0xff01>;
+ clock-frequency = <26000000>;
+ };
+
+ uart0: uart at 70000000 {
+ compatible = "sprd,serial";
+ reg = <0 0x70000000 0 0x100>;
+ interrupts = <0 2 0xf04>;
+ };
+
+ uart1: uart at 70100000 {
+ compatible = "sprd,serial";
+ reg = <0 0x70100000 0 0x100>;
+ interrupts = <0 3 0xf04>;
+ };
+};
--
1.7.9.5
^ permalink raw reply related [flat|nested] 11+ messages in thread* [PATCH 2/6] arm64: Add DTS support for Spreadtrum's Shark64 SoC
2014-09-29 11:48 ` [PATCH 2/6] arm64: Add DTS support for Spreadtrum's Shark64 SoC zhang.lyra at gmail.com
@ 2014-09-29 14:55 ` Andreas Färber
0 siblings, 0 replies; 11+ messages in thread
From: Andreas Färber @ 2014-09-29 14:55 UTC (permalink / raw)
To: linux-arm-kernel
Hi,
Am 29.09.2014 um 13:48 schrieb zhang.lyra at gmail.com:
> From: "zhizhou.zhang" <zhizhou.zhang@spreadtrum.com>
>
> Adds the device tree support for Spreadtrum Shark64 SoC based on ARMv8 architecture.
>
> Signed-off-by: zhizhou.zhang <zhizhou.zhang@spreadtrum.com>
> Signed-off-by: chunyan.zhang <chunyan.zhang@spreadtrum.com>
> ---
> arch/arm64/boot/dts/sprd_shark64.dts | 110 ++++++++++++++++++++++++++++++++++
> 1 file changed, 110 insertions(+)
> create mode 100644 arch/arm64/boot/dts/sprd_shark64.dts
>
> diff --git a/arch/arm64/boot/dts/sprd_shark64.dts b/arch/arm64/boot/dts/sprd_shark64.dts
> new file mode 100644
> index 0000000..537cd6d
> --- /dev/null
> +++ b/arch/arm64/boot/dts/sprd_shark64.dts
> @@ -0,0 +1,110 @@
> +/*
> + * dts file for Spreadtrum(sprd) Shark64 SOC
> + *
> + * Copyright (C) 2014, Spreadtrum Communications Inc.
> + *
> + * This program is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU General Public License as
> + * published by the Free Software Foundation; either version 2 of
> + * the License, or (at your option) any later version.
> + */
> +
> +/dts-v1/;
> +
> +/memreserve/ 0x80000000 0x00010000;
> +
> +/ {
> + model = "shark64 Board";
The commit message says SoC but here it says Board. Usually the SoC goes
into a .dtsi file that can then be reused for multiple boards (.dts).
Even if you only have one board for now, this distinction makes sense.
You can use status = "disabled"; to prepare nodes in the .dtsi and then
override the ones used via status = "okay"; in the .dts file. UARTs are
a typical example where you will see this pattern used.
> + compatible = "sprd,shark64";
> + interrupt-parent = <&gic>;
> + #address-cells = <2>;
> + #size-cells = <2>;
> +
> + chosen {
> + bootargs = "earlycon=serial_sprd,0x70000000";
> + };
Some spaces snuck into this line. ;)
Cheers,
Andreas
> +
> + cpus {
> + #address-cells = <2>;
> + #size-cells = <0>;
> +
> + cpu at 0 {
> + device_type = "cpu";
> + compatible = "arm,armv8";
> + reg = <0x0 0x0>;
> + enable-method = "spin-table";
> + cpu-release-addr = <0x0 0x8000fff8>;
> + };
> + cpu at 1 {
> + device_type = "cpu";
> + compatible = "arm,armv8";
> + reg = <0x0 0x1>;
> + enable-method = "spin-table";
> + cpu-release-addr = <0x0 0x8000fff8>;
> + };
> + cpu at 2 {
> + device_type = "cpu";
> + compatible = "arm,armv8";
> + reg = <0x0 0x2>;
> + enable-method = "spin-table";
> + cpu-release-addr = <0x0 0x8000fff8>;
> + };
> + cpu at 3 {
> + device_type = "cpu";
> + compatible = "arm,armv8";
> + reg = <0x0 0x3>;
> + enable-method = "spin-table";
> + cpu-release-addr = <0x0 0x8000fff8>;
> + };
> + };
> +
> + memory at 80000000 {
> + device_type = "memory";
> + reg = <0 0x80000000 0 0x20000000>;
> + };
> +
> + aliases {
> + serial0 = &uart0;
> + serial1 = &uart1;
> + };
> +
> + gic: interrupt-controller at 12001000 {
> + compatible = "arm,cortex-a15-gic", "arm,cortex-a9-gic";
> + #interrupt-cells = <3>;
> + #address-cells = <0>;
> + interrupt-controller;
> + reg = <0 0x12001000 0 0x1000>,
> + <0 0x12002000 0 0x1000>;
> + };
> +
> + intc:interrupt-controller at 71400000 {
> + compatible = "sprd,intc";
> + #interrupt-cells = <0>;
> + interrupt-controller;
> + reg = <0 0x71400000 0 0x1000>,
> + <0 0x71500000 0 0x1000>,
> + <0 0x71600000 0 0x1000>,
> + <0 0x71700000 0 0x1000>;
> + };
> +
> + timer {
> + compatible = "arm,armv8-timer";
> + interrupts = <1 13 0xff01>,
> + <1 14 0xff01>,
> + <1 11 0xff01>,
> + <1 10 0xff01>;
> + clock-frequency = <26000000>;
> + };
> +
> + uart0: uart at 70000000 {
> + compatible = "sprd,serial";
> + reg = <0 0x70000000 0 0x100>;
> + interrupts = <0 2 0xf04>;
> + };
> +
> + uart1: uart at 70100000 {
> + compatible = "sprd,serial";
> + reg = <0 0x70100000 0 0x100>;
> + interrupts = <0 3 0xf04>;
> + };
> +};
--
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 N?rnberg, Germany
GF: Jeff Hawn, Jennifer Guild, Felix Imend?rffer; HRB 16746 AG N?rnberg
^ permalink raw reply [flat|nested] 11+ messages in thread
* [PATCH 3/6] arm64: dts/Makefile: Add support for Spreadtrum's Shark64 SoC.
2014-09-29 11:48 [PATCH 0/6] Add Spreadtrum Shark64 SoC support zhang.lyra at gmail.com
2014-09-29 11:48 ` [PATCH 1/6] Documentation: DT: Add bindings for Spreadtrum serial zhang.lyra at gmail.com
2014-09-29 11:48 ` [PATCH 2/6] arm64: Add DTS support for Spreadtrum's Shark64 SoC zhang.lyra at gmail.com
@ 2014-09-29 11:48 ` zhang.lyra at gmail.com
2014-09-29 14:46 ` Andreas Färber
2014-09-29 11:48 ` [PATCH 4/6] arm64: Add support for Spreadtrum's Shark64 SoC in Kconfig and defconfig zhang.lyra at gmail.com
` (2 subsequent siblings)
5 siblings, 1 reply; 11+ messages in thread
From: zhang.lyra at gmail.com @ 2014-09-29 11:48 UTC (permalink / raw)
To: linux-arm-kernel
From: "zhizhou.zhang" <zhizhou.zhang@spreadtrum.com>
Adds build support for Spreadtrum's Shark64 SoC in arm64 dts Makefile.
Signed-off-by: zhizhou.zhang <zhizhou.zhang@spreadtrum.com>
Signed-off-by: chunyan.zhang <chunyan.zhang@spreadtrum.com>
---
arch/arm64/boot/dts/Makefile | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm64/boot/dts/Makefile b/arch/arm64/boot/dts/Makefile
index c52bdb0..7fdb9df 100644
--- a/arch/arm64/boot/dts/Makefile
+++ b/arch/arm64/boot/dts/Makefile
@@ -1,5 +1,6 @@
dtb-$(CONFIG_ARCH_VEXPRESS) += rtsm_ve-aemv8a.dtb foundation-v8.dtb
dtb-$(CONFIG_ARCH_XGENE) += apm-mustang.dtb
+dtb-$(CONFIG_ARCH_SHARK64) += sprd_shark64.dtb
targets += dtbs
targets += $(dtb-y)
--
1.7.9.5
^ permalink raw reply related [flat|nested] 11+ messages in thread* [PATCH 3/6] arm64: dts/Makefile: Add support for Spreadtrum's Shark64 SoC.
2014-09-29 11:48 ` [PATCH 3/6] arm64: dts/Makefile: Add " zhang.lyra at gmail.com
@ 2014-09-29 14:46 ` Andreas Färber
0 siblings, 0 replies; 11+ messages in thread
From: Andreas Färber @ 2014-09-29 14:46 UTC (permalink / raw)
To: linux-arm-kernel
Hi,
Am 29.09.2014 um 13:48 schrieb zhang.lyra at gmail.com:
> From: "zhizhou.zhang" <zhizhou.zhang@spreadtrum.com>
>
> Adds build support for Spreadtrum's Shark64 SoC in arm64 dts Makefile.
>
> Signed-off-by: zhizhou.zhang <zhizhou.zhang@spreadtrum.com>
> Signed-off-by: chunyan.zhang <chunyan.zhang@spreadtrum.com>
> ---
> arch/arm64/boot/dts/Makefile | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm64/boot/dts/Makefile b/arch/arm64/boot/dts/Makefile
> index c52bdb0..7fdb9df 100644
> --- a/arch/arm64/boot/dts/Makefile
> +++ b/arch/arm64/boot/dts/Makefile
> @@ -1,5 +1,6 @@
> dtb-$(CONFIG_ARCH_VEXPRESS) += rtsm_ve-aemv8a.dtb foundation-v8.dtb
> dtb-$(CONFIG_ARCH_XGENE) += apm-mustang.dtb
> +dtb-$(CONFIG_ARCH_SHARK64) += sprd_shark64.dtb
>
> targets += dtbs
> targets += $(dtb-y)
This patch seems so trivial that you could just squash it into 2/6
(adding the .dts file).
Also, it looks to me as if the ordering is alphabetical, so SHARK should
probably go somewhere before VEXPRESS, not after XGENE.
Regards,
Andreas
--
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 N?rnberg, Germany
GF: Jeff Hawn, Jennifer Guild, Felix Imend?rffer; HRB 16746 AG N?rnberg
^ permalink raw reply [flat|nested] 11+ messages in thread
* [PATCH 4/6] arm64: Add support for Spreadtrum's Shark64 SoC in Kconfig and defconfig
2014-09-29 11:48 [PATCH 0/6] Add Spreadtrum Shark64 SoC support zhang.lyra at gmail.com
` (2 preceding siblings ...)
2014-09-29 11:48 ` [PATCH 3/6] arm64: dts/Makefile: Add " zhang.lyra at gmail.com
@ 2014-09-29 11:48 ` zhang.lyra at gmail.com
2014-09-29 11:48 ` [PATCH 5/6] tty/serial: Add Spreadtrum's serial earlycon zhang.lyra at gmail.com
2014-09-29 11:48 ` [PATCH 6/6] Documentation: Add entry for Spreadtrum's Shark64 SoC zhang.lyra at gmail.com
5 siblings, 0 replies; 11+ messages in thread
From: zhang.lyra at gmail.com @ 2014-09-29 11:48 UTC (permalink / raw)
To: linux-arm-kernel
From: "zhizhou.zhang" <zhizhou.zhang@spreadtrum.com>
Adds support for Spreadtrum's Shark64 SoC in the arm64 Kconfig
and defconfig files.
Signed-off-by: zhizhou.zhang <zhizhou.zhang@spreadtrum.com>
Signed-off-by: chunyan.zhang <chunyan.zhang@spreadtrum.com>
---
arch/arm64/Kconfig | 5 +++++
arch/arm64/configs/defconfig | 1 +
2 files changed, 6 insertions(+)
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index fd4e81a..c8f36ad 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -149,6 +149,11 @@ config ARCH_XGENE
help
This enables support for AppliedMicro X-Gene SOC Family
+config ARCH_SHARK64
+ bool "Spreadtrum 64-bit SOC (ARMv8 platform)"
+ help
+ Support for 64 bits Spreadtrum based systems.
+
endmenu
menu "Bus support"
diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
index d92ef3c..86bb5e9 100644
--- a/arch/arm64/configs/defconfig
+++ b/arch/arm64/configs/defconfig
@@ -34,6 +34,7 @@ CONFIG_MODULE_UNLOAD=y
# CONFIG_IOSCHED_DEADLINE is not set
CONFIG_ARCH_VEXPRESS=y
CONFIG_ARCH_XGENE=y
+CONFIG_ARCH_SHARK64=y
CONFIG_SMP=y
CONFIG_PREEMPT=y
CONFIG_KSM=y
--
1.7.9.5
^ permalink raw reply related [flat|nested] 11+ messages in thread* [PATCH 5/6] tty/serial: Add Spreadtrum's serial earlycon
2014-09-29 11:48 [PATCH 0/6] Add Spreadtrum Shark64 SoC support zhang.lyra at gmail.com
` (3 preceding siblings ...)
2014-09-29 11:48 ` [PATCH 4/6] arm64: Add support for Spreadtrum's Shark64 SoC in Kconfig and defconfig zhang.lyra at gmail.com
@ 2014-09-29 11:48 ` zhang.lyra at gmail.com
2014-09-29 11:48 ` [PATCH 6/6] Documentation: Add entry for Spreadtrum's Shark64 SoC zhang.lyra at gmail.com
5 siblings, 0 replies; 11+ messages in thread
From: zhang.lyra at gmail.com @ 2014-09-29 11:48 UTC (permalink / raw)
To: linux-arm-kernel
From: "chunyan.zhang" <chunyan.zhang@spreadtrum.com>
Adds earlycon support for the Spreadtrum's serial.
Signed-off-by: chunyan.zhang <chunyan.zhang@spreadtrum.com>
---
drivers/tty/serial/Kconfig | 12 ++++++
drivers/tty/serial/Makefile | 1 +
drivers/tty/serial/serial_sprd_early.c | 64 ++++++++++++++++++++++++++++++++
3 files changed, 77 insertions(+)
create mode 100644 drivers/tty/serial/serial_sprd_early.c
diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
index 26cec64..ede16e6 100644
--- a/drivers/tty/serial/Kconfig
+++ b/drivers/tty/serial/Kconfig
@@ -85,6 +85,18 @@ config SERIAL_EARLYCON_ARM_SEMIHOST
with "earlycon=smh" on the kernel command line. The console is
enabled when early_param is processed.
+config SERIAL_EARLYCON_SPRD
+ bool "Early console using SPRD serial"
+ depends on ARM64
+ select SERIAL_CORE
+ select SERIAL_CORE_CONSOLE
+ select SERIAL_EARLYCON
+ help
+ Support for early debug console using SPRD serial. This enables
+ the console before standard serial driver is probed. This is enabled
+ with "earlycon=serial_sprd" on the kernel command line. The console is
+ enabled when early_param is processed.
+
config SERIAL_SB1250_DUART
tristate "BCM1xxx on-chip DUART serial support"
depends on SIBYTE_SB1xxx_SOC=y
diff --git a/drivers/tty/serial/Makefile b/drivers/tty/serial/Makefile
index 0080cc3..3ea9edc 100644
--- a/drivers/tty/serial/Makefile
+++ b/drivers/tty/serial/Makefile
@@ -7,6 +7,7 @@ obj-$(CONFIG_SERIAL_21285) += 21285.o
obj-$(CONFIG_SERIAL_EARLYCON) += earlycon.o
obj-$(CONFIG_SERIAL_EARLYCON_ARM_SEMIHOST) += earlycon-arm-semihost.o
+obj-$(CONFIG_SERIAL_EARLYCON_SPRD) += serial_sprd_early.o
# These Sparc drivers have to appear before others such as 8250
# which share ttySx minor node space. Otherwise console device
diff --git a/drivers/tty/serial/serial_sprd_early.c b/drivers/tty/serial/serial_sprd_early.c
new file mode 100644
index 0000000..059e109
--- /dev/null
+++ b/drivers/tty/serial/serial_sprd_early.c
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2012 Spreadtrum Communications Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/console.h>
+#include <linux/init.h>
+#include <linux/serial_core.h>
+#include <linux/of.h>
+
+/*offset*/
+#define ARM_UART_TXD 0x0000
+#define ARM_UART_RXD 0x0004
+#define ARM_UART_STS0 0x0008
+#define ARM_UART_STS1 0x000C
+#define ARM_UART_IEN 0x0010
+#define ARM_UART_ICLR 0x0014
+#define ARM_UART_CTL0 0x0018
+#define ARM_UART_CTL1 0x001C
+#define ARM_UART_CTL2 0x0020
+#define ARM_UART_CLKD0 0x0024
+#define ARM_UART_CLKD1 0x0028
+#define ARM_UART_STS2 0x002C
+
+/*line status */
+#define UART_LSR_TX_OVER (0x1<<15)
+
+static void serial_sprd_putc(struct uart_port *port, int c)
+{
+ while (!(readl(port->membase + ARM_UART_STS0) & UART_LSR_TX_OVER))
+ ;
+ writeb(c, port->membase + ARM_UART_TXD);
+}
+
+static void serial_sprd_early_write(struct console *con, const char *s,
+ unsigned n)
+{
+ struct earlycon_device *dev = con->data;
+
+ uart_console_write(&dev->port, s, n, serial_sprd_putc);
+}
+
+static int __init serial_sprd_early_console_setup(
+ struct earlycon_device *device,
+ const char *opt)
+{
+ if (!device->port.membase)
+ return -ENODEV;
+
+ device->con->write = serial_sprd_early_write;
+ return 0;
+}
+EARLYCON_DECLARE(serial_sprd, serial_sprd_early_console_setup);
+OF_EARLYCON_DECLARE(serial_sprd, "sprd,serial",
+ serial_sprd_early_console_setup);
--
1.7.9.5
^ permalink raw reply related [flat|nested] 11+ messages in thread* [PATCH 6/6] Documentation: Add entry for Spreadtrum's Shark64 SoC
2014-09-29 11:48 [PATCH 0/6] Add Spreadtrum Shark64 SoC support zhang.lyra at gmail.com
` (4 preceding siblings ...)
2014-09-29 11:48 ` [PATCH 5/6] tty/serial: Add Spreadtrum's serial earlycon zhang.lyra at gmail.com
@ 2014-09-29 11:48 ` zhang.lyra at gmail.com
5 siblings, 0 replies; 11+ messages in thread
From: zhang.lyra at gmail.com @ 2014-09-29 11:48 UTC (permalink / raw)
To: linux-arm-kernel
From: "chunyan.zhang" <chunyan.zhang@spreadtrum.com>
Adds a devicetree binding documentation for Spreadtrum's Shark64 SoC.
Signed-off-by: chunyan.zhang <chunyan.zhang@spreadtrum.com>
---
Documentation/devicetree/bindings/arm/sprd.txt | 6 ++++++
1 file changed, 6 insertions(+)
create mode 100644 Documentation/devicetree/bindings/arm/sprd.txt
diff --git a/Documentation/devicetree/bindings/arm/sprd.txt b/Documentation/devicetree/bindings/arm/sprd.txt
new file mode 100644
index 0000000..b6dc143
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/sprd.txt
@@ -0,0 +1,6 @@
+Spreadtrum Platforms Device Tree Bindings
+----------------------------------------------------
+
+Shark64 Board
+Required root node properties:
+ - compatible = "sprd,shark64";
--
1.7.9.5
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