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Merge git://git.denx.de/u-boot-arc

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This replaces legacy arch/arc/lib/timer.c implementation and allows us
to describe ARC Timers in Device Tree. Among other things that way we
may properly inherit Timer's clock from CPU's clock s they really run
synchronously.
This commit is contained in:
Tom Rini
2017-03-24 08:19:30 -04:00
parent c1daa40773 3daa7c7b83
commit 5cf618ee60
25 changed files with 341 additions and 111 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
arch/Kconfig
View File

@@ -13,6 +13,9 @@ config ARC
select HAVE_PRIVATE_LIBGCC
select SUPPORT_OF_CONTROL
select ARCH_EARLY_INIT_R
select CLK
select TIMER
select ARC_TIMER
config ARM
bool "ARM architecture"

9
arch/arc/Kconfig
View File

@@ -118,7 +118,7 @@ config SYS_DCACHE_OFF
choice
prompt "Target select"
default TARGET_AXS10X
default TARGET_AXS103
config TARGET_TB100
bool "Support tb100"
@@ -126,8 +126,11 @@ config TARGET_TB100
config TARGET_NSIM
bool "Support standalone nSIM & Free nSIM"
config TARGET_AXS10X
bool "Support Synopsys Designware SDP board (AXS101 & AXS103)"
config TARGET_AXS101
bool "Support Synopsys Designware SDP board AXS101"
config TARGET_AXS103
bool "Support Synopsys Designware SDP board AXS103"
endchoice

3
arch/arc/dts/Makefile
View File

@@ -2,7 +2,8 @@
# SPDX-License-Identifier: GPL-2.0+
#
dtb-$(CONFIG_TARGET_AXS10X) += axs10x.dtb
dtb-$(CONFIG_TARGET_AXS101) += axs101.dtb
dtb-$(CONFIG_TARGET_AXS103) += axs103.dtb
dtb-$(CONFIG_TARGET_NSIM) += nsim.dtb
dtb-$(CONFIG_TARGET_TB100) += abilis_tb100.dtb

12
arch/arc/dts/abilis_tb100.dts
View File

@@ -8,13 +8,19 @@
#include "skeleton.dtsi"
/ {
#address-cells = <1>;
#size-cells = <1>;
aliases {
console = &uart0;
};
cpu_card {
core_clk: core_clk {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <500000000>;
u-boot,dm-pre-reloc;
};
};
uart0: serial@ff100000 {
compatible = "snps,dw-apb-uart";
reg = <0xff100000 0x1000>;

19
arch/arc/dts/axc001.dtsi Normal file
View File

@@ -0,0 +1,19 @@
/*
* Copyright (C) 2017 Synopsys, Inc. All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0+
*/
/include/ "skeleton.dtsi"
/ {
cpu_card {
core_clk: core_clk {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <750000000>;
u-boot,dm-pre-reloc;
};
};
};

19
arch/arc/dts/axc003.dtsi Normal file
View File

@@ -0,0 +1,19 @@
/*
* Copyright (C) 2017 Synopsys, Inc. All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0+
*/
/include/ "skeleton.dtsi"
/ {
cpu_card {
core_clk: core_clk {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <100000000>;
u-boot,dm-pre-reloc;
};
};
};

17
arch/arc/dts/axs101.dts Normal file
View File

@@ -0,0 +1,17 @@
/*
* Copyright (C) 2017 Synopsys, Inc. All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0+
*/
/dts-v1/;
/include/ "axc001.dtsi"
/include/ "axs10x_mb.dtsi"
/ {
chosen {
stdout-path = &uart0;
};
};

17
arch/arc/dts/axs103.dts Normal file
View File

@@ -0,0 +1,17 @@
/*
* Copyright (C) 2017 Synopsys, Inc. All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0+
*/
/dts-v1/;
/include/ "axc003.dtsi"
/include/ "axs10x_mb.dtsi"
/ {
chosen {
stdout-path = &uart0;
};
};

57
arch/arc/dts/axs10x.dts
View File

@@ -1,57 +0,0 @@
/*
* Copyright (C) 2015 Synopsys, Inc. All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0+
*/
/dts-v1/;
#include "skeleton.dtsi"
/ {
#address-cells = <1>;
#size-cells = <1>;
aliases {
console = &uart0;
};
clocks {
apbclk: apbclk {
compatible = "fixed-clock";
clock-frequency = <50000000>;
#clock-cells = <0>;
};
};
uart0: serial0@e0022000 {
compatible = "snps,dw-apb-uart";
reg = <0xe0022000 0x1000>;
reg-shift = <2>;
reg-io-width = <4>;
};
ethernet@e0018000 {
#interrupt-cells = <1>;
compatible = "altr,socfpga-stmmac";
reg = < 0xe0018000 0x2000 >;
interrupts = < 25 >;
interrupt-names = "macirq";
phy-mode = "gmii";
snps,pbl = < 32 >;
clocks = <&apbclk>;
clock-names = "stmmaceth";
max-speed = <100>;
};
ehci@0xe0040000 {
compatible = "generic-ehci";
reg = < 0xe0040000 0x100 >;
interrupts = < 8 >;
};
ohci@0xe0060000 {
compatible = "generic-ohci";
reg = < 0xe0060000 0x100 >;
interrupts = < 8 >;
};
};

66
arch/arc/dts/axs10x_mb.dtsi Normal file
View File

@@ -0,0 +1,66 @@
/*
* Copyright (C) 2017 Synopsys, Inc. All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0+
*/
/ {
axs10x_mb@e0000000 {
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <1>;
ranges = <0x00000000 0xe0000000 0x10000000>;
u-boot,dm-pre-reloc;
clocks {
compatible = "simple-bus";
u-boot,dm-pre-reloc;
apbclk: apbclk {
compatible = "fixed-clock";
clock-frequency = <50000000>;
#clock-cells = <0>;
};
uartclk: uartclk {
compatible = "fixed-clock";
clock-frequency = <33333333>;
#clock-cells = <0>;
u-boot,dm-pre-reloc;
};
};
ethernet@18000 {
#interrupt-cells = <1>;
compatible = "altr,socfpga-stmmac";
reg = < 0x18000 0x2000 >;
interrupts = < 25 >;
interrupt-names = "macirq";
phy-mode = "gmii";
snps,pbl = < 32 >;
clocks = <&apbclk>;
clock-names = "stmmaceth";
max-speed = <100>;
};
ehci@0x40000 {
compatible = "generic-ehci";
reg = < 0x40000 0x100 >;
interrupts = < 8 >;
};
ohci@0x60000 {
compatible = "generic-ohci";
reg = < 0x60000 0x100 >;
interrupts = < 8 >;
};
uart0: serial0@22000 {
compatible = "snps,dw-apb-uart";
reg = <0x22000 0x100>;
clocks = <&uartclk>;
reg-shift = <2>;
reg-io-width = <4>;
};
};
};

14
arch/arc/dts/nsim.dts
View File

@@ -8,17 +8,23 @@
#include "skeleton.dtsi"
/ {
#address-cells = <1>;
#size-cells = <1>;
aliases {
console = &arcuart0;
};
cpu_card {
core_clk: core_clk {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <70000000>;
u-boot,dm-pre-reloc;
};
};
arcuart0: serial@0xc0fc1000 {
compatible = "snps,arc-uart";
reg = <0xc0fc1000 0x100>;
clock-frequency = <80000000>;
clock-frequency = <70000000>;
};
};

19
arch/arc/dts/skeleton.dtsi
View File

@@ -9,5 +9,22 @@
#size-cells = <1>;
chosen { };
aliases { };
memory { device_type = "memory"; reg = <0 0>; };
cpu_card {
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <1>;
u-boot,dm-pre-reloc;
timer@0 {
compatible = "snps,arc-timer";
clocks = <&core_clk>;
reg = <0 1>;
};
};
memory@80000000 {
device_type = "memory";
reg = <0x80000000 0x10000000>; /* 256M */
};
};

4
arch/arc/include/asm/arcregs.h
View File

@@ -33,6 +33,10 @@
#define ARC_AUX_TIMER0_CTRL 0x22 /* Timer 0 control */
#define ARC_AUX_TIMER0_LIMIT 0x23 /* Timer 0 limit */
#define ARC_AUX_TIMER1_CNT 0x100 /* Timer 1 count */
#define ARC_AUX_TIMER1_CTRL 0x101 /* Timer 1 control */
#define ARC_AUX_TIMER1_LIMIT 0x102 /* Timer 1 limit */
#define ARC_AUX_INTR_VEC_BASE 0x25
/* Data cache related auxiliary registers */

1
arch/arc/lib/Makefile
View File

@@ -18,7 +18,6 @@ obj-y += memcmp.o
obj-y += memcpy-700.o
obj-y += memset.o
obj-y += reset.o
obj-y += timer.o
obj-y += ints_low.o
obj-y += init_helpers.o

24
arch/arc/lib/timer.c
View File

@@ -1,24 +0,0 @@
/*
* Copyright (C) 2013-2014 Synopsys, Inc. All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <asm/arcregs.h>
#define NH_MODE (1 << 1) /* Disable timer if CPU is halted */
int timer_init(void)
{
write_aux_reg(ARC_AUX_TIMER0_CTRL, NH_MODE);
/* Set max value for counter/timer */
write_aux_reg(ARC_AUX_TIMER0_LIMIT, 0xffffffff);
/* Set initial count value and restart counter/timer */
write_aux_reg(ARC_AUX_TIMER0_CNT, 0);
return 0;
}
unsigned long timer_read_counter(void)
{
return read_aux_reg(ARC_AUX_TIMER0_CNT);
}