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ns16550: unify serial_rockchip 

Unify serial_rockchip, and use the generic binding.

Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Reviewed-by: Tom Rini <trini@konsulko.com>
Tested-by: Ariel D'Alessandro <ariel@vanguardiasur.com.ar>
Acked-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Thomas Chou 2015-11-19 21:48:08 +08:00 committed by Tom Rini
parent f27445cbdc
commit 98a51fc3d7
5 changed files with 6 additions and 57 deletions
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5
arch/arm/dts/rk3288.dtsi
View File

@ -324,6 +324,7 @@
interrupts = <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>;
reg-shift = <2>;
reg-io-width = <4>;
clock-frequency = <24000000>;
clocks = <&cru SCLK_UART0>, <&cru PCLK_UART0>;
clock-names = "baudclk", "apb_pclk";
pinctrl-names = "default";
@ -337,6 +338,7 @@
interrupts = <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>;
reg-shift = <2>;
reg-io-width = <4>;
clock-frequency = <24000000>;
clocks = <&cru SCLK_UART1>, <&cru PCLK_UART1>;
clock-names = "baudclk", "apb_pclk";
pinctrl-names = "default";
@ -350,6 +352,7 @@
interrupts = <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>;
reg-shift = <2>;
reg-io-width = <4>;
clock-frequency = <24000000>;
clocks = <&cru SCLK_UART2>, <&cru PCLK_UART2>;
clock-names = "baudclk", "apb_pclk";
pinctrl-names = "default";
@ -362,6 +365,7 @@
interrupts = <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>;
reg-shift = <2>;
reg-io-width = <4>;
clock-frequency = <24000000>;
clocks = <&cru SCLK_UART3>, <&cru PCLK_UART3>;
clock-names = "baudclk", "apb_pclk";
pinctrl-names = "default";
@ -375,6 +379,7 @@
interrupts = <GIC_SPI 59 IRQ_TYPE_LEVEL_HIGH>;
reg-shift = <2>;
reg-io-width = <4>;
clock-frequency = <24000000>;
clocks = <&cru SCLK_UART4>, <&cru PCLK_UART4>;
clock-names = "baudclk", "apb_pclk";
pinctrl-names = "default";

3
arch/arm/mach-rockchip/Kconfig
View File

@ -33,9 +33,6 @@ config DM_I2C
config DM_GPIO
default y
config ROCKCHIP_SERIAL
default y
source "arch/arm/mach-rockchip/rk3288/Kconfig"
endif

11
drivers/serial/Kconfig
View File

@ -186,19 +186,10 @@ config ALTERA_UART
Select this to enable an UART for Altera devices. Please find
details on the "Embedded Peripherals IP User Guide" of Altera.
config ROCKCHIP_SERIAL
bool "Rockchip on-chip UART support"
depends on ARCH_ROCKCHIP && DM_SERIAL
help
Select this to enable a debug UART for Rockchip devices. This uses
the ns16550 driver. You will need to #define CONFIG_SYS_NS16550 in
your board config header. The clock input is automatically set to
use the oscillator (24MHz).
config NS16550_SERIAL
bool "NS16550 UART or compatible"
depends on DM_SERIAL
default y if X86 || PPC
default y if X86 || PPC || ARCH_ROCKCHIP
help
Support NS16550 UART or compatible with driver model. This can be
enabled in the device tree with the correct input clock frequency.

1
drivers/serial/Makefile
View File

@ -40,7 +40,6 @@ obj-$(CONFIG_ZYNQ_SERIAL) += serial_zynq.o
obj-$(CONFIG_BFIN_SERIAL) += serial_bfin.o
obj-$(CONFIG_FSL_LPUART) += serial_lpuart.o
obj-$(CONFIG_MXS_AUART) += mxs_auart.o
obj-$(CONFIG_ROCKCHIP_SERIAL) += serial_rockchip.o
obj-$(CONFIG_ARC_SERIAL) += serial_arc.o
obj-$(CONFIG_TEGRA_SERIAL) += serial_tegra.o
obj-$(CONFIG_UNIPHIER_SERIAL) += serial_uniphier.o

43
drivers/serial/serial_rockchip.c
View File

@ -1,43 +0,0 @@
/*
* Copyright (c) 2015 Google, Inc
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <dm.h>
#include <ns16550.h>
#include <serial.h>
#include <asm/arch/clock.h>
static const struct udevice_id rockchip_serial_ids[] = {
{ .compatible = "rockchip,rk3288-uart" },
{ }
};
static int rockchip_serial_ofdata_to_platdata(struct udevice *dev)
{
struct ns16550_platdata *plat = dev_get_platdata(dev);
int ret;
ret = ns16550_serial_ofdata_to_platdata(dev);
if (ret)
return ret;
/* Do all Rockchip parts use 24MHz? */
plat->clock = 24 * 1000000;
return 0;
}
U_BOOT_DRIVER(serial_ns16550) = {
.name = "serial_rockchip",
.id = UCLASS_SERIAL,
.of_match = rockchip_serial_ids,
.ofdata_to_platdata = rockchip_serial_ofdata_to_platdata,
.platdata_auto_alloc_size = sizeof(struct ns16550_platdata),
.priv_auto_alloc_size = sizeof(struct NS16550),
.probe = ns16550_serial_probe,
.ops = &ns16550_serial_ops,
.flags = DM_FLAG_PRE_RELOC,
};