There is a device that doesn't work when P2CCLK's bit of TI PC1520 was disable.
This patch supports P2CCLK bit enabler for TI PC1520.
Signed-off-by: Nobuhiro Iwamatsu <[email protected]>
---
drivers/pcmcia/Kconfig | 5 +++++
drivers/pcmcia/ti113x.h | 8 ++++++++
2 files changed, 13 insertions(+), 0 deletions(-)
diff --git a/drivers/pcmcia/Kconfig b/drivers/pcmcia/Kconfig
index 519b4ff..3d80888 100644
--- a/drivers/pcmcia/Kconfig
+++ b/drivers/pcmcia/Kconfig
@@ -134,6 +134,11 @@ config YENTA_ENE_TUNE
bool "Auto-tune EnE bridges for CB cards" if EMBEDDED
depends on YENTA_TI && CARDBUS
+config YENTA_TI_P2CCLK
+ default n
+ bool "Clock generated by internal oscillator" if EMBEDDED
+ depends on YENTA_TI && CARDBUS
+
config YENTA_TOSHIBA
default y
bool "Special initialization for Toshiba ToPIC bridges" if EMBEDDED
diff --git a/drivers/pcmcia/ti113x.h b/drivers/pcmcia/ti113x.h
index d29657b..ea749e8 100644
--- a/drivers/pcmcia/ti113x.h
+++ b/drivers/pcmcia/ti113x.h
@@ -59,6 +59,7 @@
#define TI122X_SCR_SER_STEP 0xc0000000
#define TI122X_SCR_INTRTIE 0x20000000
#define TIXX21_SCR_TIEALL 0x10000000
+#define TI122X_SCR_P2CCLK 0x08000000
#define TI122X_SCR_CBRSVD 0x00400000
#define TI122X_SCR_MRBURSTDN 0x00008000
#define TI122X_SCR_MRBURSTUP 0x00004000
@@ -822,6 +823,13 @@ static int ti12xx_override(struct yenta_socket *socket)
printk(KERN_INFO "Yenta: Enabling burst memory read transactions\n");
val |= TI122X_SCR_MRBURSTUP;
}
+
+#ifdef CONFIG_YENTA_TI_P2CCLK
+ if ( !(val & TI122X_SCR_P2CCLK)) {
+ printk(KERN_INFO "Yenta: Clock generated by internal oscillator\n");
+ val |= TI122X_SCR_P2CCLK;
+ }
+#endif
if (val_orig != val)
config_writel(socket, TI113X_SYSTEM_CONTROL, val);
--
1.5.3.6
--
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