[U-Boot] [PATCH 0/2] ARC: enable debug uart for HSDK and AXS10x boards
Eugeniy Paltsev (2): ARC: init debug uart in early common arc code ARC: enable debug uart for HSDK and AXS10x boards
arch/arc/lib/start.S | 5 +++++ configs/axs101_defconfig | 5 +++++ configs/axs103_defconfig | 5 +++++ configs/hsdk_defconfig | 5 +++++ 4 files changed, 20 insertions(+)
The debug UART is intended for use very early in U-Boot to debug problems before serial drivers are up.
Call debug_uart_init right before board_init_f.
Signed-off-by: Eugeniy Paltsev Eugeniy.Paltsev@synopsys.com --- arch/arc/lib/start.S | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/arch/arc/lib/start.S b/arch/arc/lib/start.S index c78dd001d81..cb8ea0fd363 100644 --- a/arch/arc/lib/start.S +++ b/arch/arc/lib/start.S @@ -76,6 +76,11 @@ ENTRY(_start) /* Initialize reserved area - note: r0 already contains address */ bl board_init_f_init_reserve
+#ifdef CONFIG_DEBUG_UART + /* Earliest point to set up early debug uart */ + bl debug_uart_init +#endif + /* Zero the one and only argument of "board_init_f" */ mov_s %r0, 0 bl board_init_f
Signed-off-by: Eugeniy Paltsev Eugeniy.Paltsev@synopsys.com --- configs/axs101_defconfig | 5 +++++ configs/axs103_defconfig | 5 +++++ configs/hsdk_defconfig | 5 +++++ 3 files changed, 15 insertions(+)
diff --git a/configs/axs101_defconfig b/configs/axs101_defconfig index 25b10888ced..559ed4734c1 100644 --- a/configs/axs101_defconfig +++ b/configs/axs101_defconfig @@ -3,6 +3,7 @@ CONFIG_TARGET_AXS101=y CONFIG_SYS_TEXT_BASE=0x81000000 CONFIG_SYS_CLK_FREQ=750000000 CONFIG_DEFAULT_DEVICE_TREE="axs101" +CONFIG_DEBUG_UART=y CONFIG_BOOTDELAY=3 CONFIG_USE_BOOTARGS=y CONFIG_BOOTARGS="console=ttyS3,115200n8" @@ -33,6 +34,10 @@ CONFIG_DM_ETH=y CONFIG_PHY_GIGE=y CONFIG_ETH_DESIGNWARE=y CONFIG_DM_SERIAL=y +CONFIG_DEBUG_UART_BASE=0xe0022000 +CONFIG_DEBUG_UART_CLOCK=33333333 +CONFIG_DEBUG_UART_SHIFT=2 +CONFIG_DEBUG_UART_ANNOUNCE=y CONFIG_SYS_NS16550=y CONFIG_USB=y CONFIG_DM_USB=y diff --git a/configs/axs103_defconfig b/configs/axs103_defconfig index b9d387b88a8..8b66451307d 100644 --- a/configs/axs103_defconfig +++ b/configs/axs103_defconfig @@ -3,6 +3,7 @@ CONFIG_ISA_ARCV2=y CONFIG_SYS_TEXT_BASE=0x81000000 CONFIG_SYS_CLK_FREQ=100000000 CONFIG_DEFAULT_DEVICE_TREE="axs103" +CONFIG_DEBUG_UART=y CONFIG_BOOTDELAY=3 CONFIG_USE_BOOTARGS=y CONFIG_BOOTARGS="console=ttyS3,115200n8" @@ -33,6 +34,10 @@ CONFIG_DM_ETH=y CONFIG_PHY_GIGE=y CONFIG_ETH_DESIGNWARE=y CONFIG_DM_SERIAL=y +CONFIG_DEBUG_UART_BASE=0xe0022000 +CONFIG_DEBUG_UART_CLOCK=33333333 +CONFIG_DEBUG_UART_SHIFT=2 +CONFIG_DEBUG_UART_ANNOUNCE=y CONFIG_SYS_NS16550=y CONFIG_USB=y CONFIG_DM_USB=y diff --git a/configs/hsdk_defconfig b/configs/hsdk_defconfig index d23acfeb878..28cd1dd70c4 100644 --- a/configs/hsdk_defconfig +++ b/configs/hsdk_defconfig @@ -4,6 +4,7 @@ CONFIG_TARGET_HSDK=y CONFIG_SYS_TEXT_BASE=0x81000000 CONFIG_SYS_CLK_FREQ=500000000 CONFIG_DEFAULT_DEVICE_TREE="hsdk" +CONFIG_DEBUG_UART=y CONFIG_USE_BOOTARGS=y CONFIG_BOOTARGS="console=ttyS0,115200n8" CONFIG_BOARD_EARLY_INIT_F=y @@ -42,6 +43,10 @@ CONFIG_SPI_FLASH_SST=y CONFIG_DM_ETH=y CONFIG_ETH_DESIGNWARE=y CONFIG_DM_SERIAL=y +CONFIG_DEBUG_UART_BASE=0xf0005000 +CONFIG_DEBUG_UART_CLOCK=33333333 +CONFIG_DEBUG_UART_SHIFT=2 +CONFIG_DEBUG_UART_ANNOUNCE=y CONFIG_SYS_NS16550=y CONFIG_SPI=y CONFIG_DM_SPI=y
participants (1)
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Eugeniy Paltsev