From: Paul Cercueil <paul@crapouillou.net>
To: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: "Rob Herring" <robh+dt@kernel.org>,
周琰杰 <zhouyanjie@wanyeetech.com>,
linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org,
devicetree@vger.kernel.org, list@opendingux.net,
"Paul Cercueil" <paul@crapouillou.net>
Subject: [PATCH 2/8] MIPS: boot: Support specifying UART port on Ingenic SoCs
Date: Sun, 30 May 2021 18:17:56 +0100 [thread overview]
Message-ID: <20210530171802.23649-3-paul@crapouillou.net> (raw)
In-Reply-To: <20210530171802.23649-1-paul@crapouillou.net>
Allow specifying from the config the UART to use on Ingenic SoCs when
compressed kernel debugging is enabled.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
---
arch/mips/Kconfig.debug | 8 ++++++++
arch/mips/boot/compressed/uart-16550.c | 4 ++--
2 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/arch/mips/Kconfig.debug b/arch/mips/Kconfig.debug
index f5832a49a881..43dbf5930796 100644
--- a/arch/mips/Kconfig.debug
+++ b/arch/mips/Kconfig.debug
@@ -102,6 +102,14 @@ config DEBUG_ZBOOT
to reduce the kernel image size and speed up the booting procedure a
little.
+config ZBOOT_INGENIC_UART
+ int "UART to use for compressed kernel debugging"
+ depends on DEBUG_ZBOOT && MACH_INGENIC_SOC
+ default 0
+ range 0 4
+ help
+ Specify the UART that should be used for compressed kernel debugging.
+
config SPINLOCK_TEST
bool "Enable spinlock timing tests in debugfs"
depends on DEBUG_FS
diff --git a/arch/mips/boot/compressed/uart-16550.c b/arch/mips/boot/compressed/uart-16550.c
index aee8d7b8f091..c18d7f72d9d9 100644
--- a/arch/mips/boot/compressed/uart-16550.c
+++ b/arch/mips/boot/compressed/uart-16550.c
@@ -19,8 +19,8 @@
#endif
#ifdef CONFIG_MACH_INGENIC
-#define INGENIC_UART0_BASE_ADDR 0x10030000
-#define PORT(offset) (CKSEG1ADDR(INGENIC_UART0_BASE_ADDR) + (4 * offset))
+#define INGENIC_UART_BASE_ADDR (0x10030000 + 0x1000 * CONFIG_ZBOOT_INGENIC_UART)
+#define PORT(offset) (CKSEG1ADDR(INGENIC_UART_BASE_ADDR) + (4 * offset))
#endif
#ifdef CONFIG_CPU_XLR
--
2.30.2
next prev parent reply other threads:[~2021-05-30 17:18 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-30 17:17 [PATCH 0/8] Misc Ingenic patches Paul Cercueil
2021-05-30 17:17 ` [PATCH 1/8] MIPS: mm: XBurst CPU requires sync after DMA Paul Cercueil
2021-05-30 17:17 ` Paul Cercueil [this message]
2021-05-30 17:17 ` [PATCH 3/8] MIPS: cpu-probe: Fix FPU detection on Ingenic JZ4760(B) Paul Cercueil
2021-05-30 17:17 ` [PATCH 4/8] MIPS: Kconfig: ingenic: Ensure MACH_INGENIC_GENERIC selects all SoCs Paul Cercueil
2021-05-30 17:17 ` [PATCH 5/8] MIPS: ingenic: Select CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER Paul Cercueil
2021-05-30 17:18 ` [PATCH 6/8] MIPS: ingenic: jz4780: Fix I2C nodes to match DT doc Paul Cercueil
2021-05-30 17:18 ` [PATCH 7/8] MIPS: ingenic: gcw0: Set codec to cap-less mode for FM radio Paul Cercueil
2021-05-30 17:18 ` [PATCH 8/8] MIPS: ingenic: rs90: Add dedicated VRAM memory region Paul Cercueil
2021-06-01 9:49 ` [PATCH 0/8] Misc Ingenic patches Thomas Bogendoerfer
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