[U-Boot] [PATCH] enable debug uart

[rick at andestech.com]

Hi, All

This is wrong patch sending.

Please ignore it.

Rick

-----Original Message-----
From: Open Source Project uboot
Sent: Wednesday, November 15, 2017 10:48 AM
To: u-boot at lists.denx.de; wd at denx.de; dzu at denx.de; sjg at chromium.org
Cc: Rick Jian-Zhi Chen(陳建志)
Subject: [PATCH] enable debug uart

From: rick <rick at andestech.com>

---
 common/board_f.c            |    2 ++
 configs/adp-ae3xx_defconfig |    5 +++++
 drivers/serial/Kconfig      |    8 ++++++++
 drivers/serial/ns16550.c    |    5 +++--
 include/debug_uart.h        |    2 ++
 lib/display_options.c       |    2 ++
 6 files changed, 22 insertions(+), 2 deletions(-)  mode change 100644 => 100755 common/board_f.c  mode change 100644 => 100755 common/init/board_init.c  mode change 100644 => 100755 configs/adp-ae3xx_defconfig  mode change 100644 => 100755 drivers/serial/Kconfig  mode change 100644 => 100755 drivers/serial/ns16550.c  mode change 100644 => 100755 include/debug_uart.h  mode change 100644 => 100755 lib/display_options.c

diff --git a/common/board_f.c b/common/board_f.c old mode 100644 new mode 100755 index 104d144..1024987
--- a/common/board_f.c
+++ b/common/board_f.c
@@ -902,6 +902,8 @@ static const init_fnc_t init_sequence_f[] = {

 void board_init_f(ulong boot_flags)
 {
+//printf("board_init_f\n");
+//while(1);
        gd->flags = boot_flags;
        gd->have_console = 0;

diff --git a/common/init/board_init.c b/common/init/board_init.c old mode 100644 new mode 100755 diff --git a/configs/adp-ae3xx_defconfig b/configs/adp-ae3xx_defconfig old mode 100644 new mode 100755 index db9ee61..02386d6
--- a/configs/adp-ae3xx_defconfig
+++ b/configs/adp-ae3xx_defconfig
@@ -38,3 +38,8 @@ CONFIG_DM_SPI=y
 CONFIG_NDS_AE3XX_SPI=y
 CONFIG_TIMER=y
 CONFIG_AE3XX_TIMER=y
+CONFIG_DEBUG_UART=y
+CONFIG_DEBUG_UART_BASE=0xf0300000
+CONFIG_DEBUG_UART_CLOCK=14745600
+CONFIG_DEBUG_UART_SHIFT=2
+CONFIG_DEBUG_UART_OFFSET=32
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig old mode 100644 new mode 100755 index aeed538..34d49be
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -319,6 +319,14 @@ config DEBUG_UART_SHIFT
          value. Use this value to specify the shift to use, where 0=byte
          registers, 2=32-bit word registers, etc.

+config DEBUG_UART_OFFSET
+       int "UART register offset"
+       depends on DEBUG_UART
+       default 0 if DEBUG_UART
+       help
+         Offset to apply to the mapbase from the start of the registers.
+
+
 config DEBUG_UART_BOARD_INIT
        bool "Enable board-specific debug UART init"
        depends on DEBUG_UART
diff --git a/drivers/serial/ns16550.c b/drivers/serial/ns16550.c old mode 100644 new mode 100755 index c702304..b67af3d
--- a/drivers/serial/ns16550.c
+++ b/drivers/serial/ns16550.c
@@ -31,8 +31,9 @@ DECLARE_GLOBAL_DATA_PTR;
 #define serial_out(x, y)       out_le32(y, x)
 #define serial_in(y)           in_le32(y)
 #else
-#define serial_out(x, y)       writeb(x, y)
-#define serial_in(y)           readb(y)
+@
+#define serial_out(x, y)       writeb(x, y+CONFIG_SYS_NS16550_REG_OFFSET)
+#define serial_in(y)           readb(y+CONFIG_SYS_NS16550_REG_OFFSET)
 #endif
 #endif /* !CONFIG_DM_SERIAL */

diff --git a/include/debug_uart.h b/include/debug_uart.h old mode 100644 new mode 100755 index 6f0b0c5..a369fb2
--- a/include/debug_uart.h
+++ b/include/debug_uart.h
@@ -113,11 +113,13 @@ void printhex8(uint value);

 #define serial_dout(reg, value)        \
        serial_out_shift((char *)com_port + \
+               CONFIG_DEBUG_UART_OFFSET + \
                ((char *)reg - (char *)com_port) * \
                        (1 << CONFIG_DEBUG_UART_SHIFT), \
                CONFIG_DEBUG_UART_SHIFT, value)
 #define serial_din(reg) \
        serial_in_shift((char *)com_port + \
+               CONFIG_DEBUG_UART_OFFSET + \
                ((char *)reg - (char *)com_port) * \
                        (1 << CONFIG_DEBUG_UART_SHIFT), \
                CONFIG_DEBUG_UART_SHIFT)
diff --git a/lib/display_options.c b/lib/display_options.c old mode 100644 new mode 100755 index 4ea27ca..8ee63ce
--- a/lib/display_options.c
+++ b/lib/display_options.c
@@ -41,6 +41,8 @@ char *display_options_get_banner(bool newlines, char *buf, int size)

 int display_options(void)
 {
+printf("display_options\n");
+//while(1);
        char buf[DISPLAY_OPTIONS_BANNER_LENGTH];

        display_options_get_banner(true, buf, sizeof(buf));
--
1.7.9.5

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