Signed-off-by: Rafał Miłecki <zajec5@xxxxxxxxx>
---
drivers/ssb/Kconfig | 5 +++++
drivers/ssb/Makefile | 1 +
drivers/ssb/driver_chipcommon_sflash.c | 22 ++++++++++++++++++++++
drivers/ssb/driver_mipscore.c | 3 ++-
drivers/ssb/ssb_private.h | 11 +++++++++++
include/linux/ssb/ssb_driver_chipcommon.h | 10 ++++++++++
6 files changed, 51 insertions(+), 1 deletions(-)
create mode 100644 drivers/ssb/driver_chipcommon_sflash.c
diff --git a/drivers/ssb/Kconfig b/drivers/ssb/Kconfig
index fad7a10..ea099e1 100644
--- a/drivers/ssb/Kconfig
+++ b/drivers/ssb/Kconfig
@@ -137,6 +137,11 @@ config SSB_DRIVER_MIPS
If unsure, say N
+config SSB_SFLASH
+ bool "SSB serial flash support"
+ depends on SSB_DRIVER_MIPS && BROKEN
+ default y
+
# Assumption: We are on embedded, if we compile the MIPS core.
config SSB_EMBEDDED
bool
diff --git a/drivers/ssb/Makefile b/drivers/ssb/Makefile
index 9159ba7..b1ddc11 100644
--- a/drivers/ssb/Makefile
+++ b/drivers/ssb/Makefile
@@ -11,6 +11,7 @@ ssb-$(CONFIG_SSB_SDIOHOST) += sdio.o
# built-in drivers
ssb-y += driver_chipcommon.o
ssb-y += driver_chipcommon_pmu.o
+ssb-$(CONFIG_SSB_SFLASH) += driver_chipcommon_sflash.o
ssb-$(CONFIG_SSB_DRIVER_MIPS) += driver_mipscore.o
ssb-$(CONFIG_SSB_DRIVER_EXTIF) += driver_extif.o
ssb-$(CONFIG_SSB_DRIVER_PCICORE) += driver_pcicore.o
diff --git a/drivers/ssb/driver_chipcommon_sflash.c b/drivers/ssb/driver_chipcommon_sflash.c
new file mode 100644
index 0000000..9803e02
--- /dev/null
+++ b/drivers/ssb/driver_chipcommon_sflash.c
@@ -0,0 +1,22 @@
+/*
+ * Sonics Silicon Backplane
+ * ChipCommon serial flash interface
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include <linux/ssb/ssb.h>
+
+#include "ssb_private.h"
+
+/* Initialize serial flash access */
+int ssb_sflash_init(struct ssb_chipcommon *cc)
+{
+ struct ssb_sflash *sflash = &cc->sflash;
+
+ pr_err("Serial flash support is not implemented yet!\n");
+
+ sflash->present = true;
+
+ return -ENOTSUPP;
+}
diff --git a/drivers/ssb/driver_mipscore.c b/drivers/ssb/driver_mipscore.c
index 5bd05b1..2a7684c 100644
--- a/drivers/ssb/driver_mipscore.c
+++ b/drivers/ssb/driver_mipscore.c
@@ -203,7 +203,8 @@ static void ssb_mips_flash_detect(struct ssb_mipscore *mcore)
switch (bus->chipco.capabilities & SSB_CHIPCO_CAP_FLASHT) {
case SSB_CHIPCO_FLASHT_STSER:
case SSB_CHIPCO_FLASHT_ATSER:
- pr_err("Serial flash not supported\n");
+ pr_debug("Found serial flash\n");
+ ssb_sflash_init(&bus->chipco);
break;
case SSB_CHIPCO_FLASHT_PARA:
pr_debug("Found parallel flash\n");
diff --git a/drivers/ssb/ssb_private.h b/drivers/ssb/ssb_private.h
index 6c10b66..77d9426 100644
--- a/drivers/ssb/ssb_private.h
+++ b/drivers/ssb/ssb_private.h
@@ -217,6 +217,17 @@ extern u32 ssb_chipco_watchdog_timer_set_wdt(struct bcm47xx_wdt *wdt,
u32 ticks);
extern u32 ssb_chipco_watchdog_timer_set_ms(struct bcm47xx_wdt *wdt, u32 ms);
+/* driver_chipcommon_sflash.c */
+#ifdef CONFIG_SSB_SFLASH
+int ssb_sflash_init(struct ssb_chipcommon *cc);
+#else
+static inline int ssb_sflash_init(struct ssb_chipcommon *cc)
+{
+ pr_err("Serial flash not supported\n");
+ return 0;
+}
+#endif /* CONFIG_SSB_SFLASH */
+
#ifdef CONFIG_SSB_DRIVER_EXTIF
extern u32 ssb_extif_watchdog_timer_set_wdt(struct bcm47xx_wdt *wdt, u32 ticks);
extern u32 ssb_extif_watchdog_timer_set_ms(struct bcm47xx_wdt *wdt, u32 ms);
diff --git a/include/linux/ssb/ssb_driver_chipcommon.h b/include/linux/ssb/ssb_driver_chipcommon.h
index 9e492be..052e9de 100644
--- a/include/linux/ssb/ssb_driver_chipcommon.h
+++ b/include/linux/ssb/ssb_driver_chipcommon.h
@@ -584,6 +584,12 @@ struct ssb_chipcommon_pmu {
u32 crystalfreq; /* The active crystal frequency (in kHz) */
};
+#ifdef CONFIG_SSB_SFLASH
+struct ssb_sflash {
+ bool present;
+};
+#endif
+
struct ssb_chipcommon {
struct ssb_device *dev;
u32 capabilities;
@@ -594,6 +600,10 @@ struct ssb_chipcommon {
struct ssb_chipcommon_pmu pmu;
u32 ticks_per_ms;
u32 max_timer_ms;
+
+#ifdef CONFIG_SSB_SFLASH
+ struct ssb_sflash sflash;
+#endif
};
static inline bool ssb_chipco_available(struct ssb_chipcommon *cc)
--
1.7.7
--
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