summaryrefslogtreecommitdiffstats
path: root/arch/powerpc/sysdev
diff options
context:
space:
mode:
authorTimur Tabi <timur@freescale.com>2008-01-09 17:35:05 -0600
committerKumar Gala <galak@kernel.crashing.org>2008-01-23 19:34:10 -0600
commit845cf505cebd159b57b3ae3b25e9ad0eb036f9ab (patch)
treeaaeb813efa4299bff6b6ea80e302d50b8777febd /arch/powerpc/sysdev
parentbc556ba940085e46e0ab1b5ed7c31428dc86dd03 (diff)
downloadop-kernel-dev-845cf505cebd159b57b3ae3b25e9ad0eb036f9ab.zip
op-kernel-dev-845cf505cebd159b57b3ae3b25e9ad0eb036f9ab.tar.gz
[POWERPC] QE: Add support for Freescale QUICCEngine UART
Add support for UART serial ports using a Freescale QUICCEngine. Update booting-without-of.txt to define new properties for a QE UART node. Update the MPC8323E-MDS device tree to add UCC5 as a UART. Update the QE library to support slow UCC devices and modules. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/sysdev')
-rw-r--r--arch/powerpc/sysdev/qe_lib/Kconfig2
-rw-r--r--arch/powerpc/sysdev/qe_lib/ucc_slow.c10
2 files changed, 10 insertions, 2 deletions
diff --git a/arch/powerpc/sysdev/qe_lib/Kconfig b/arch/powerpc/sysdev/qe_lib/Kconfig
index f611d34..adc6621 100644
--- a/arch/powerpc/sysdev/qe_lib/Kconfig
+++ b/arch/powerpc/sysdev/qe_lib/Kconfig
@@ -4,7 +4,7 @@
config UCC_SLOW
bool
- default n
+ default y if SERIAL_QE
help
This option provides qe_lib support to UCC slow
protocols: UART, BISYNC, QMC
diff --git a/arch/powerpc/sysdev/qe_lib/ucc_slow.c b/arch/powerpc/sysdev/qe_lib/ucc_slow.c
index 0174b3a..b2870b2 100644
--- a/arch/powerpc/sysdev/qe_lib/ucc_slow.c
+++ b/arch/powerpc/sysdev/qe_lib/ucc_slow.c
@@ -19,6 +19,7 @@
#include <linux/stddef.h>
#include <linux/interrupt.h>
#include <linux/err.h>
+#include <linux/module.h>
#include <asm/io.h>
#include <asm/immap_qe.h>
@@ -41,6 +42,7 @@ u32 ucc_slow_get_qe_cr_subblock(int uccs_num)
default: return QE_CR_SUBBLOCK_INVALID;
}
}
+EXPORT_SYMBOL(ucc_slow_get_qe_cr_subblock);
void ucc_slow_poll_transmitter_now(struct ucc_slow_private * uccs)
{
@@ -56,6 +58,7 @@ void ucc_slow_graceful_stop_tx(struct ucc_slow_private * uccs)
qe_issue_cmd(QE_GRACEFUL_STOP_TX, id,
QE_CR_PROTOCOL_UNSPECIFIED, 0);
}
+EXPORT_SYMBOL(ucc_slow_graceful_stop_tx);
void ucc_slow_stop_tx(struct ucc_slow_private * uccs)
{
@@ -65,6 +68,7 @@ void ucc_slow_stop_tx(struct ucc_slow_private * uccs)
id = ucc_slow_get_qe_cr_subblock(us_info->ucc_num);
qe_issue_cmd(QE_STOP_TX, id, QE_CR_PROTOCOL_UNSPECIFIED, 0);
}
+EXPORT_SYMBOL(ucc_slow_stop_tx);
void ucc_slow_restart_tx(struct ucc_slow_private * uccs)
{
@@ -74,6 +78,7 @@ void ucc_slow_restart_tx(struct ucc_slow_private * uccs)
id = ucc_slow_get_qe_cr_subblock(us_info->ucc_num);
qe_issue_cmd(QE_RESTART_TX, id, QE_CR_PROTOCOL_UNSPECIFIED, 0);
}
+EXPORT_SYMBOL(ucc_slow_restart_tx);
void ucc_slow_enable(struct ucc_slow_private * uccs, enum comm_dir mode)
{
@@ -94,6 +99,7 @@ void ucc_slow_enable(struct ucc_slow_private * uccs, enum comm_dir mode)
}
out_be32(&us_regs->gumr_l, gumr_l);
}
+EXPORT_SYMBOL(ucc_slow_enable);
void ucc_slow_disable(struct ucc_slow_private * uccs, enum comm_dir mode)
{
@@ -114,6 +120,7 @@ void ucc_slow_disable(struct ucc_slow_private * uccs, enum comm_dir mode)
}
out_be32(&us_regs->gumr_l, gumr_l);
}
+EXPORT_SYMBOL(ucc_slow_disable);
/* Initialize the UCC for Slow operations
*
@@ -347,6 +354,7 @@ int ucc_slow_init(struct ucc_slow_info * us_info, struct ucc_slow_private ** ucc
*uccs_ret = uccs;
return 0;
}
+EXPORT_SYMBOL(ucc_slow_init);
void ucc_slow_free(struct ucc_slow_private * uccs)
{
@@ -366,5 +374,5 @@ void ucc_slow_free(struct ucc_slow_private * uccs)
kfree(uccs);
}
-
+EXPORT_SYMBOL(ucc_slow_free);
OpenPOWER on IntegriCloud