Hi Thomas,
added Simon and Stephen to cc on this.
On 13.09.2015 10:32, Thomas Chou wrote:
As the io space remapping ioremap() and bridge address
translation fdt_translate_address() are not usually used
in u-boot driver model by dev_get_addr(). We would better
convert the reg address map in the device tree of nios2
boards, so that it is io mapped and bridge translated.
So you are changing the DT sources for your platform because the U-Boot
implementation does support the bus translation correctly (ranges
properties)? I think this is the wrong approach. We need to make sure
that U-Boot supports DT correctly instead. I have a patch queued to
enable this. Please take a look at this thread:
https://patchwork.ozlabs.org/patch/514331/
Could you please check if this patch (with the config options enabled)
helps on your platform without DT changes?
Signed-off-by: Thomas Chou <tho...@wytron.com.tw>
---
arch/nios2/dts/3c120_devboard.dts | 171 +++++++++++++++-----------------------
1 file changed, 69 insertions(+), 102 deletions(-)
diff --git a/arch/nios2/dts/3c120_devboard.dts
b/arch/nios2/dts/3c120_devboard.dts
index 02524ab..70d71a5 100644
--- a/arch/nios2/dts/3c120_devboard.dts
+++ b/arch/nios2/dts/3c120_devboard.dts
@@ -14,6 +14,73 @@
#address-cells = <1>;
#size-cells = <1>;
+ aliases {
+ console = &jtag_uart;
+ };
+
+ timer_1ms: timer@0x400000 {
+ compatible = "altr,timer-1.0";
+ reg = <0xe8400000 0x00000020>;
+ interrupt-parent = <&cpu>;
+ interrupts = <11>;
+ clock-frequency = <125000000>;
+ u-boot,dm-pre-reloc;
+ };
+
+ jtag_uart: serial@0x4d50 {
+ compatible = "altr,juart-1.0";
+ reg = <0xe8004d50 0x00000008>;
+ interrupt-parent = <&cpu>;
+ interrupts = <1>;
+ u-boot,dm-pre-reloc;
+ };
+
+ tse_mac: ethernet@0x4000 {
+ compatible = "altr,tse-1.0";
+ reg = <0xe8004000 0x00000400>,
+ <0xe8004400 0x00000040>,
+ <0xe8004800 0x00000040>,
+ <0xe8002000 0x00002000>;
+ reg-names = "control_port", "rx_csr", "tx_csr", "s1";
+ interrupt-parent = <&cpu>;
+ interrupts = <2 3>;
+ interrupt-names = "rx_irq", "tx_irq";
+ rx-fifo-depth = <8192>;
+ tx-fifo-depth = <8192>;
+ max-frame-size = <1518>;
+ local-mac-address = [ 00 00 00 00 00 00 ];
+ phy-mode = "rgmii-id";
+ phy-handle = <&phy0>;
+ tse_mac_mdio: mdio {
+ compatible = "altr,tse-mdio";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ phy0: ethernet-phy@18 {
+ reg = <18>;
+ device_type = "ethernet-phy";
+ };
+ };
+ };
+
+ uart: serial@0x4c80 {
+ compatible = "altr,uart-1.0";
+ reg = <0xe8004c80 0x00000020>;
+ interrupt-parent = <&cpu>;
+ interrupts = <10>;
+ current-speed = <115200>;
+ clock-frequency = <62500000>;
+ u-boot,dm-pre-reloc;
+ };
+
+ user_led_pio_8out: gpio@0x4cc0 {
+ compatible = "altr,pio-1.0";
+ reg = <0xe8004cc0 0x00000010>;
+ resetvalue = <255>;
+ width = <8>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ };
+
cpus {
#address-cells = <1>;
#size-cells = <0>;
@@ -46,108 +113,8 @@
memory@0 {
device_type = "memory";
- reg = <0x10000000 0x08000000>,
- <0x07fff400 0x00000400>;
+ reg = <0xd0000000 0x08000000>,
+ <0xc7fff400 0x00000400>;
};
- sopc@0 {
- device_type = "soc";
- ranges;
- #address-cells = <1>;
- #size-cells = <1>;
- compatible = "altr,avalon", "simple-bus";
- bus-frequency = <125000000>;
-
- pb_cpu_to_io: bridge@0x8000000 {
- compatible = "simple-bus";
- reg = <0x08000000 0x00800000>;
- #address-cells = <1>;
- #size-cells = <1>;
- ranges = <0x00002000 0x08002000 0x00002000>,
- <0x00004000 0x08004000 0x00000400>,
- <0x00004400 0x08004400 0x00000040>,
- <0x00004800 0x08004800 0x00000040>,
- <0x00004c80 0x08004c80 0x00000020>,
- <0x00004d50 0x08004d50 0x00000008>,
- <0x00008000 0x08008000 0x00000020>,
- <0x00400000 0x08400000 0x00000020>;
-
- timer_1ms: timer@0x400000 {
- compatible = "altr,timer-1.0";
- reg = <0x00400000 0x00000020>;
- interrupt-parent = <&cpu>;
- interrupts = <11>;
- clock-frequency = <125000000>;
- };
-
- timer_0: timer@0x8000 {
- compatible = "altr,timer-1.0";
- reg = < 0x00008000 0x00000020 >;
- interrupt-parent = < &cpu >;
- interrupts = < 5 >;
- clock-frequency = < 125000000 >;
- };
-
- jtag_uart: serial@0x4d50 {
- compatible = "altr,juart-1.0";
- reg = <0x00004d50 0x00000008>;
- interrupt-parent = <&cpu>;
- interrupts = <1>;
- };
-
- tse_mac: ethernet@0x4000 {
- compatible = "altr,tse-1.0";
- reg = <0x00004000 0x00000400>,
- <0x00004400 0x00000040>,
- <0x00004800 0x00000040>,
- <0x00002000 0x00002000>;
- reg-names = "control_port", "rx_csr", "tx_csr",
"s1";
- interrupt-parent = <&cpu>;
- interrupts = <2 3>;
- interrupt-names = "rx_irq", "tx_irq";
- rx-fifo-depth = <8192>;
- tx-fifo-depth = <8192>;
- max-frame-size = <1518>;
- local-mac-address = [ 00 00 00 00 00 00 ];
- phy-mode = "rgmii-id";
- phy-handle = <&phy0>;
- tse_mac_mdio: mdio {
- compatible = "altr,tse-mdio";
- #address-cells = <1>;
- #size-cells = <0>;
- phy0: ethernet-phy@18 {
- reg = <18>;
- device_type = "ethernet-phy";
- };
- };
- };
-
- uart: serial@0x4c80 {
- compatible = "altr,uart-1.0";
- reg = <0x00004c80 0x00000020>;
- interrupt-parent = <&cpu>;
- interrupts = <10>;
- current-speed = <115200>;
- clock-frequency = <62500000>;
- };
- };
-
- cfi_flash_64m: flash@0x0 {
- compatible = "cfi-flash";
- reg = <0x00000000 0x04000000>;
- bank-width = <2>;
- device-width = <1>;
- #address-cells = <1>;
- #size-cells = <1>;
-
- partition@800000 {
- reg = <0x00800000 0x01e00000>;
- label = "JFFS2 Filesystem";
- };
- };
- };
-
- chosen {
- bootargs = "debug console=ttyJ0,115200";
- };
};
Thanks,
Stefan
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