From b7e4c8d3bf2d8cb2aaddd6bd00f5c84da4ca872e Mon Sep 17 00:00:00 2001 From: John Crispin Date: Mon, 19 Oct 2015 10:08:29 +0000 Subject: [PATCH] lantiq: Print the status register whenever an error occurs This should help finding potential problems with the SPI driver. Signed-off-by: Martin Blumenstingl SVN-Revision: 47209 --- .../patches-3.18/0033-SPI-MIPS-lantiq-adds-spi-xway.patch | 4 +++- .../patches-4.1/0033-SPI-MIPS-lantiq-adds-spi-xway.patch | 4 +++- 2 files changed, 6 insertions(+), 2 deletions(-) diff --git a/target/linux/lantiq/patches-3.18/0033-SPI-MIPS-lantiq-adds-spi-xway.patch b/target/linux/lantiq/patches-3.18/0033-SPI-MIPS-lantiq-adds-spi-xway.patch index 9cc9349a71a..81e5d39f21f 100644 --- a/target/linux/lantiq/patches-3.18/0033-SPI-MIPS-lantiq-adds-spi-xway.patch +++ b/target/linux/lantiq/patches-3.18/0033-SPI-MIPS-lantiq-adds-spi-xway.patch @@ -42,7 +42,7 @@ Signed-off-by: John Crispin +obj-$(CONFIG_SPI_XWAY) += spi-xway.o --- /dev/null +++ b/drivers/spi/spi-xway.c -@@ -0,0 +1,975 @@ +@@ -0,0 +1,977 @@ +/* + * Lantiq SoC SPI controller + * @@ -744,6 +744,8 @@ Signed-off-by: John Crispin + /* Disable all interrupts */ + ltq_spi_reg_clearbit(hw, LTQ_SPI_IRNEN_ALL, LTQ_SPI_IRNEN); + ++ dev_err(hw->dev, "error %x\n", ltq_spi_reg_read(hw, LTQ_SPI_STAT)); ++ + /* Clear all error flags */ + ltq_spi_reg_write(hw, LTQ_SPI_WHBSTATE_CLR_ERRORS, LTQ_SPI_WHBSTATE); + diff --git a/target/linux/lantiq/patches-4.1/0033-SPI-MIPS-lantiq-adds-spi-xway.patch b/target/linux/lantiq/patches-4.1/0033-SPI-MIPS-lantiq-adds-spi-xway.patch index ffcc95ed553..5325b833739 100644 --- a/target/linux/lantiq/patches-4.1/0033-SPI-MIPS-lantiq-adds-spi-xway.patch +++ b/target/linux/lantiq/patches-4.1/0033-SPI-MIPS-lantiq-adds-spi-xway.patch @@ -42,7 +42,7 @@ Signed-off-by: John Crispin +obj-$(CONFIG_SPI_XWAY) += spi-xway.o --- /dev/null +++ b/drivers/spi/spi-xway.c -@@ -0,0 +1,989 @@ +@@ -0,0 +1,991 @@ +/* + * Lantiq SoC SPI controller + * @@ -750,6 +750,8 @@ Signed-off-by: John Crispin + /* Disable all interrupts */ + ltq_spi_reg_clearbit(hw, LTQ_SPI_IRNEN_ALL, LTQ_SPI_IRNEN); + ++ dev_err(hw->dev, "error %x\n", ltq_spi_reg_read(hw, LTQ_SPI_STAT)); ++ + /* Clear all error flags */ + ltq_spi_reg_write(hw, LTQ_SPI_WHBSTATE_CLR_ERRORS, LTQ_SPI_WHBSTATE); +