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From: Alexey Brodkin <Alexey.Brodkin@synopsys.com>
To: u-boot@lists.denx.de
Cc: linux-snps-arc@lists.infradead.org,
	Alexey Brodkin <Alexey.Brodkin@synopsys.com>,
	uboot-snps-arc@synopsys.com
Subject: [PATCH 1/3] ARC: nSIM: switch from ARC UART to DW UART
Date: Mon, 20 Jan 2020 13:46:33 +0300	[thread overview]
Message-ID: <20200120104635.33290-2-abrodkin@synopsys.com> (raw)
In-Reply-To: <20200120104635.33290-1-abrodkin@synopsys.com>

Since v2019.06 DesingWare nSIM supports DesignWare UART simulation
and so we may switch from pretty unusual ARC UART to much more standard
DesignWare UART (which in case of U-Boot is just an ordinary 16650 UART).

This among other things makes built dinaries compatible with our other
platforms to name a few: FPGA-based HAPS boards, QEMU and even ZeBU.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
---
 arch/arc/dts/nsim.dts         | 12 +++++++-----
 configs/nsim_700_defconfig    |  8 ++++----
 configs/nsim_700be_defconfig  |  8 ++++----
 configs/nsim_hs38_defconfig   |  8 ++++----
 configs/nsim_hs38be_defconfig |  8 ++++----
 5 files changed, 23 insertions(+), 21 deletions(-)

diff --git a/arch/arc/dts/nsim.dts b/arch/arc/dts/nsim.dts
index 243ecb178e..a3f3964d35 100644
--- a/arch/arc/dts/nsim.dts
+++ b/arch/arc/dts/nsim.dts
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0+
 /*
- * Copyright (C) 2015-2016 Synopsys, Inc. (www.synopsys.com)
+ * Copyright (C) 2015-2016, 2019 Synopsys, Inc. (www.synopsys.com)
  */
 /dts-v1/;
 
@@ -10,7 +10,7 @@
 	model = "snps,nsim";
 
 	aliases {
-		console = &arcuart0;
+		console = &uart0;
 	};
 
 	cpu_card {
@@ -22,9 +22,11 @@
 		};
 	};
 
-	arcuart0: serial@0xc0fc1000 {
-		compatible = "snps,arc-uart";
-		reg = <0xc0fc1000 0x100>;
+	uart0: serial@f0000000 {
+		compatible = "snps,dw-apb-uart";
+		reg = <0xf0000000 0x1000>;
+		reg-shift = <2>;
+		reg-io-width = <4>;
 		clock-frequency = <70000000>;
 	};
 
diff --git a/configs/nsim_700_defconfig b/configs/nsim_700_defconfig
index 5633113b09..2d4a58b178 100644
--- a/configs/nsim_700_defconfig
+++ b/configs/nsim_700_defconfig
@@ -1,13 +1,13 @@
 CONFIG_ARC=y
 CONFIG_TARGET_NSIM=y
 CONFIG_SYS_TEXT_BASE=0x81000000
-CONFIG_DEBUG_UART_BASE=0xc0fc1000
+CONFIG_DEBUG_UART_BASE=0xf0000000
 CONFIG_DEBUG_UART_CLOCK=70000000
 CONFIG_SYS_CLK_FREQ=70000000
 CONFIG_DEBUG_UART=y
 CONFIG_BOOTDELAY=3
 CONFIG_USE_BOOTARGS=y
-CONFIG_BOOTARGS="console=ttyARC0,115200n8"
+CONFIG_BOOTARGS="console=ttyS0,115200n8"
 CONFIG_SYS_PROMPT="nsim# "
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_OF_CONTROL=y
@@ -16,6 +16,6 @@ CONFIG_DEFAULT_DEVICE_TREE="nsim"
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
 CONFIG_DM=y
 CONFIG_DM_SERIAL=y
-CONFIG_DEBUG_ARC_SERIAL=y
-CONFIG_ARC_SERIAL=y
+CONFIG_DEBUG_UART_SHIFT=2
+CONFIG_SYS_NS16550=y
 CONFIG_USE_PRIVATE_LIBGCC=y
diff --git a/configs/nsim_700be_defconfig b/configs/nsim_700be_defconfig
index 40f7ec7e1f..61eea91449 100644
--- a/configs/nsim_700be_defconfig
+++ b/configs/nsim_700be_defconfig
@@ -2,13 +2,13 @@ CONFIG_ARC=y
 CONFIG_CPU_BIG_ENDIAN=y
 CONFIG_TARGET_NSIM=y
 CONFIG_SYS_TEXT_BASE=0x81000000
-CONFIG_DEBUG_UART_BASE=0xc0fc1000
+CONFIG_DEBUG_UART_BASE=0xf0000000
 CONFIG_DEBUG_UART_CLOCK=70000000
 CONFIG_SYS_CLK_FREQ=70000000
 CONFIG_DEBUG_UART=y
 CONFIG_BOOTDELAY=3
 CONFIG_USE_BOOTARGS=y
-CONFIG_BOOTARGS="console=ttyARC0,115200n8"
+CONFIG_BOOTARGS="console=ttyS0,115200n8"
 CONFIG_SYS_PROMPT="nsim# "
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_OF_CONTROL=y
@@ -17,6 +17,6 @@ CONFIG_DEFAULT_DEVICE_TREE="nsim"
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
 CONFIG_DM=y
 CONFIG_DM_SERIAL=y
-CONFIG_DEBUG_ARC_SERIAL=y
-CONFIG_ARC_SERIAL=y
+CONFIG_DEBUG_UART_SHIFT=2
+CONFIG_SYS_NS16550=y
 CONFIG_USE_PRIVATE_LIBGCC=y
diff --git a/configs/nsim_hs38_defconfig b/configs/nsim_hs38_defconfig
index 2820a6fca3..ce68de3251 100644
--- a/configs/nsim_hs38_defconfig
+++ b/configs/nsim_hs38_defconfig
@@ -2,13 +2,13 @@ CONFIG_ARC=y
 CONFIG_ISA_ARCV2=y
 CONFIG_TARGET_NSIM=y
 CONFIG_SYS_TEXT_BASE=0x81000000
-CONFIG_DEBUG_UART_BASE=0xc0fc1000
+CONFIG_DEBUG_UART_BASE=0xf0000000
 CONFIG_DEBUG_UART_CLOCK=70000000
 CONFIG_SYS_CLK_FREQ=70000000
 CONFIG_DEBUG_UART=y
 CONFIG_BOOTDELAY=3
 CONFIG_USE_BOOTARGS=y
-CONFIG_BOOTARGS="console=ttyARC0,115200n8"
+CONFIG_BOOTARGS="console=ttyS0,115200n8"
 CONFIG_SYS_PROMPT="nsim# "
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_OF_CONTROL=y
@@ -17,6 +17,6 @@ CONFIG_DEFAULT_DEVICE_TREE="nsim"
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
 CONFIG_DM=y
 CONFIG_DM_SERIAL=y
-CONFIG_DEBUG_ARC_SERIAL=y
-CONFIG_ARC_SERIAL=y
+CONFIG_DEBUG_UART_SHIFT=2
+CONFIG_SYS_NS16550=y
 CONFIG_USE_PRIVATE_LIBGCC=y
diff --git a/configs/nsim_hs38be_defconfig b/configs/nsim_hs38be_defconfig
index e533fae2b1..5d2ea59d52 100644
--- a/configs/nsim_hs38be_defconfig
+++ b/configs/nsim_hs38be_defconfig
@@ -3,13 +3,13 @@ CONFIG_ISA_ARCV2=y
 CONFIG_CPU_BIG_ENDIAN=y
 CONFIG_TARGET_NSIM=y
 CONFIG_SYS_TEXT_BASE=0x81000000
-CONFIG_DEBUG_UART_BASE=0xc0fc1000
+CONFIG_DEBUG_UART_BASE=0xf0000000
 CONFIG_DEBUG_UART_CLOCK=70000000
 CONFIG_SYS_CLK_FREQ=70000000
 CONFIG_DEBUG_UART=y
 CONFIG_BOOTDELAY=3
 CONFIG_USE_BOOTARGS=y
-CONFIG_BOOTARGS="console=ttyARC0,115200n8"
+CONFIG_BOOTARGS="console=ttyS0,115200n8"
 CONFIG_SYS_PROMPT="nsim# "
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_OF_CONTROL=y
@@ -18,6 +18,6 @@ CONFIG_DEFAULT_DEVICE_TREE="nsim"
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
 CONFIG_DM=y
 CONFIG_DM_SERIAL=y
-CONFIG_DEBUG_ARC_SERIAL=y
-CONFIG_ARC_SERIAL=y
+CONFIG_DEBUG_UART_SHIFT=2
+CONFIG_SYS_NS16550=y
 CONFIG_USE_PRIVATE_LIBGCC=y
-- 
2.16.2


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  reply	other threads:[~2020-01-20 10:46 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-20 10:46 [PATCH 0/3] Improvements for ARC simulation platform Alexey Brodkin
2020-01-20 10:46 ` Alexey Brodkin [this message]
2020-01-20 10:46 ` [PATCH 2/3] ARC: nsim_{700|700be|hs38be}_defconfigs: Disable networking Alexey Brodkin
2020-01-20 10:46 ` [PATCH 3/3] ARC: nsim_hs38: Add support of Virtio NET & BLK Alexey Brodkin
  -- strict thread matches above, loose matches on Subject: below --
2019-12-26 13:31 [PATCH 0/3] ARC nSIM (AKA virtual & prototyping platform) updates Alexey Brodkin
2019-12-26 13:31 ` [PATCH 1/3] ARC: nSIM: switch from ARC UART to DW UART Alexey Brodkin

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