From: Jules Maselbas <jmaselbas@zdiv.net>
To: barebox@lists.infradead.org
Cc: Jules Maselbas <jmaselbas@zdiv.net>
Subject: [PATCH v2 06/13] ARM: sunxi: Add debug_ll
Date: Thu, 25 May 2023 01:43:21 +0200 [thread overview]
Message-ID: <20230524234328.82741-7-jmaselbas@zdiv.net> (raw)
In-Reply-To: <20230524234328.82741-1-jmaselbas@zdiv.net>
Signed-off-by: Jules Maselbas <jmaselbas@zdiv.net>
---
arch/arm/include/asm/debug_ll.h | 2 ++
arch/arm/mach-sunxi/Kconfig | 4 ++++
include/mach/sunxi/debug_ll.h | 35 +++++++++++++++++++++++++++++++++
3 files changed, 41 insertions(+)
create mode 100644 include/mach/sunxi/debug_ll.h
diff --git a/arch/arm/include/asm/debug_ll.h b/arch/arm/include/asm/debug_ll.h
index a1d5161ccf..054d021bab 100644
--- a/arch/arm/include/asm/debug_ll.h
+++ b/arch/arm/include/asm/debug_ll.h
@@ -50,6 +50,8 @@
#include <mach/uemd/debug_ll.h>
#elif defined CONFIG_ARCH_SOCFPGA
#include <mach/socfpga/debug_ll.h>
+#elif defined CONFIG_ARCH_SUNXI
+#include <mach/sunxi/debug_ll.h>
#elif defined CONFIG_ARCH_PXA
#include <mach/pxa/debug_ll.h>
#elif defined CONFIG_ARCH_NOMADIK
diff --git a/arch/arm/mach-sunxi/Kconfig b/arch/arm/mach-sunxi/Kconfig
index 6094f40e2e..61a5ae9ae2 100644
--- a/arch/arm/mach-sunxi/Kconfig
+++ b/arch/arm/mach-sunxi/Kconfig
@@ -1,3 +1,7 @@
if ARCH_SUNXI
+config SUNXI_DEBUG_LL_UART_BASE
+ hex
+ default 0x01c28000
+
endif
diff --git a/include/mach/sunxi/debug_ll.h b/include/mach/sunxi/debug_ll.h
new file mode 100644
index 0000000000..99f77ab2e4
--- /dev/null
+++ b/include/mach/sunxi/debug_ll.h
@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef __MACH_DEBUG_LL_H__
+#define __MACH_DEBUG_LL_H__
+
+#include <io.h>
+
+#define DEBUG_LL_UART_ADDR IOMEM(CONFIG_SUNXI_DEBUG_LL_UART_BASE)
+
+static inline uint8_t debug_ll_read_reg(int reg)
+{
+ return readl(DEBUG_LL_UART_ADDR + reg * sizeof(uint32_t));
+}
+
+static inline void debug_ll_write_reg(int reg, uint8_t val)
+{
+ writel(val, DEBUG_LL_UART_ADDR + reg * sizeof(uint32_t));
+}
+
+#include <debug_ll/ns16550.h>
+
+static inline void debug_ll_init(void)
+{
+ uint16_t divisor;
+
+ divisor = debug_ll_ns16550_calc_divisor(24 * 1000 * 1000);
+ debug_ll_ns16550_init(divisor);
+}
+
+static inline void PUTC_LL(int c)
+{
+ debug_ll_ns16550_putc(c);
+}
+
+#endif
--
2.40.1
next prev parent reply other threads:[~2023-05-24 23:45 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-24 23:43 [PATCH v2 00/13] Add support for Allwinner (sunxi) A64 SoC Jules Maselbas
2023-05-24 23:43 ` [PATCH v2 01/13] Documentation: sunxi: Add some documentation Jules Maselbas
2023-05-29 9:24 ` Jules Maselbas
2023-05-24 23:43 ` [PATCH v2 02/13] scripts: Add Allwinner eGON image support Jules Maselbas
2023-06-16 22:00 ` Marco Felsch
2023-06-17 7:25 ` Jules Maselbas
2023-06-20 4:52 ` Marco Felsch
2023-06-21 8:26 ` Sascha Hauer
2023-05-24 23:43 ` [PATCH v2 03/13] ARM: sunxi: introduce mach-sunxi Jules Maselbas
2023-05-24 23:43 ` [PATCH v2 04/13] ARM: lds: Add SoC specific sections to go before .text_head_prologue Jules Maselbas
2023-06-01 6:34 ` Ahmad Fatoum
2023-06-01 21:20 ` Jules Maselbas
2023-05-24 23:43 ` [PATCH v2 05/13] ARM: sunxi: Add lowlevel switch to aarch64 Jules Maselbas
2023-05-24 23:43 ` Jules Maselbas [this message]
2023-05-24 23:43 ` [PATCH v2 07/13] clk: Add clock driver for sun50i-a64 Jules Maselbas
2023-05-24 23:43 ` [PATCH v2 08/13] pinctrl: Add sun50i-a64 pinctrl driver Jules Maselbas
2023-05-24 23:43 ` [PATCH v2 09/13] mci: Add sunxi-mmc driver Jules Maselbas
2023-05-30 8:14 ` Sascha Hauer
2023-06-01 6:15 ` Jules Maselbas
2023-06-01 8:35 ` Sascha Hauer
2023-05-24 23:43 ` [PATCH v2 10/13] ARM: sunxi: Add sun50i SDRAM init Jules Maselbas
2023-05-24 23:43 ` [PATCH v2 11/13] ARM: boards: sunxi: Add initial support for the pinephone Jules Maselbas
2023-05-30 8:42 ` Sascha Hauer
2023-06-01 5:50 ` Jules Maselbas
2023-06-01 6:00 ` Ahmad Fatoum
2023-06-01 6:19 ` Jules Maselbas
2023-06-01 6:36 ` Ahmad Fatoum
2023-06-01 7:09 ` Ahmad Fatoum
2023-05-24 23:43 ` [PATCH v2 12/13] ARM: boards: sunxi: Add pine64 board Jules Maselbas
2023-05-24 23:43 ` [PATCH v2 13/13] ARM: sunxi: xload: Add helpers for chain-loading from SD-card Jules Maselbas
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