From: Ahmad Fatoum <a.fatoum@pengutronix.de>
To: barebox@lists.infradead.org
Cc: Ahmad Fatoum <a.fatoum@pengutronix.de>
Subject: [PATCH v2 5/5] RISC-V: erizo: make it easier to reuse ns16550 debug_ll
Date: Mon, 31 May 2021 09:03:25 +0200 [thread overview]
Message-ID: <20210531070325.19627-5-a.fatoum@pengutronix.de> (raw)
In-Reply-To: <20210531070325.19627-1-a.fatoum@pengutronix.de>
Incoming StarFive support also uses ns16550 compatibles as UART IP.
Make reuse easier by making the two most likely parameters to change
SoC-specific (base address and baud clock frequency) and move the rest
behind the new CONFIG_DEBUG_LL_NS16550.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
v1 -> v2:
- new patch
---
arch/riscv/include/asm/debug_ll.h | 7 +++++--
common/Kconfig | 6 ++++++
2 files changed, 11 insertions(+), 2 deletions(-)
diff --git a/arch/riscv/include/asm/debug_ll.h b/arch/riscv/include/asm/debug_ll.h
index 6904460af98f..13609d25c559 100644
--- a/arch/riscv/include/asm/debug_ll.h
+++ b/arch/riscv/include/asm/debug_ll.h
@@ -12,13 +12,16 @@
#include <linux/kconfig.h>
-#ifdef CONFIG_DEBUG_ERIZO
+#ifdef CONFIG_DEBUG_LL_NS16550
+#if defined CONFIG_DEBUG_ERIZO
#define DEBUG_LL_UART_ADDR 0x90000000
+#define DEBUG_LL_UART_CLK (24000000 / 16)
+#endif
+
#define DEBUG_LL_UART_SHIFT 2
#define DEBUG_LL_UART_IOSIZE32
-#define DEBUG_LL_UART_CLK (24000000 / 16)
#define DEBUG_LL_UART_BPS CONFIG_BAUDRATE
#define DEBUG_LL_UART_DIVISOR (DEBUG_LL_UART_CLK / DEBUG_LL_UART_BPS)
diff --git a/common/Kconfig b/common/Kconfig
index db7cc6713ae2..ce349d4ebbf6 100644
--- a/common/Kconfig
+++ b/common/Kconfig
@@ -1374,6 +1374,7 @@ config DEBUG_RPI3_MINI_UART
config DEBUG_ERIZO
bool "Erizo ns16550 port"
depends on SOC_ERIZO
+ select DEBUG_LL_NS16550
config DEBUG_SIFIVE
bool "SiFive serial0 port"
@@ -1381,6 +1382,11 @@ config DEBUG_SIFIVE
endchoice
+config DEBUG_LL_NS16550
+ bool
+ help
+ Selected by RISC-V platforms that use ns16550 for debug_ll
+
config DEBUG_IMX_UART_PORT
int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \
DEBUG_IMX21_UART || \
--
2.29.2
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next prev parent reply other threads:[~2021-05-31 7:04 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-31 7:03 [PATCH v2 1/5] RISC-V: extend multi-image to support both S- and M-Mode Ahmad Fatoum
2021-05-31 7:03 ` [PATCH v2 2/5] RISC-V: cpuinfo: return some output for non-SBI systems as well Ahmad Fatoum
2021-05-31 7:03 ` [PATCH v2 3/5] clocksource: RISC-V: demote probe success messages to debug level Ahmad Fatoum
2021-05-31 7:03 ` [PATCH v2 4/5] RISC-V: S-Mode: propagate Hart ID Ahmad Fatoum
2021-05-31 7:05 ` Ahmad Fatoum
2021-05-31 7:03 ` Ahmad Fatoum [this message]
2021-06-07 7:42 ` [PATCH v2 1/5] RISC-V: extend multi-image to support both S- and M-Mode Ahmad Fatoum
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