[coreboot-gerrit] New patch to review for coreboot: siemens/mc_bdx1: Set serial IRQ to quiet mode

[Werner Zeh (werner.zeh@siemens.com)]

Werner Zeh (werner.zeh at siemens.com) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/16533

-gerrit

commit f11d0baea3c294f81dd8fe0cfbe807de2845d62e
Author: Werner Zeh <werner.zeh at siemens.com>
Date:   Thu Sep 8 07:17:34 2016 +0200

    siemens/mc_bdx1: Set serial IRQ to quiet mode
    
    On this mainboard serial IRQ needs to be set to quiet mode. Since it
    will be set up to continuous mode in sc_init(), just set it back to
    quiet mode in finalize phase.
    
    Change-Id: If2a5e9b89328c25cf2987760d3e8d128722c07fa
    Signed-off-by: Werner Zeh <werner.zeh at siemens.com>
---
 src/mainboard/siemens/mc_bdx1/mainboard.c        | 4 ++++
 src/soc/intel/fsp_broadwell_de/include/soc/lpc.h | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/src/mainboard/siemens/mc_bdx1/mainboard.c b/src/mainboard/siemens/mc_bdx1/mainboard.c
index 8a5226b..74b6feb 100644
--- a/src/mainboard/siemens/mc_bdx1/mainboard.c
+++ b/src/mainboard/siemens/mc_bdx1/mainboard.c
@@ -33,6 +33,7 @@
 #include <i210.h>
 #include <soc/pci_devs.h>
 #include <soc/irq.h>
+#include <soc/lpc.h>
 
 #define MAX_PATH_DEPTH		12
 #define MAX_NUM_MAPPINGS	10
@@ -120,6 +121,9 @@ static void mainboard_final(void *chip_info)
 	write16((spi_base + SPI_REG_OPTYPE), SPI_OPTYPE);
 	write32((spi_base + SPI_REG_OPMENU_L), SPI_OPMENU_LOWER);
 	write32((spi_base + SPI_REG_OPMENU_H), SPI_OPMENU_UPPER);
+
+	/* Set SCI to quiet mode */
+	pci_write_config8(dev, SIRQ_CNTL, SIRQ_EN | SIRQ_MODE_QUIET);
 }
 
 /** \brief This function can decide if a given MAC address is valid or not.
diff --git a/src/soc/intel/fsp_broadwell_de/include/soc/lpc.h b/src/soc/intel/fsp_broadwell_de/include/soc/lpc.h
index 30cb576..a81c59e 100644
--- a/src/soc/intel/fsp_broadwell_de/include/soc/lpc.h
+++ b/src/soc/intel/fsp_broadwell_de/include/soc/lpc.h
@@ -22,6 +22,10 @@
 /* LPC Interface Bridge PCI Configuration Registers */
 #define REVID			0x08
 #define PIRQ_RCR1		0x60
+#define SIRQ_CNTL		0x64
+#define   SIRQ_EN		0x80
+#define   SIRQ_MODE_QUIET	0x00
+#define   SIRQ_MODE_CONT	0x40
 #define PIRQ_RCR2		0x68
 #define LPC_IO_DEC		0x80
 #define LPC_EN			0x82