[PATCH] ppc32: Fix SCC Uart write problem after 2. open()

Heiko Schocher hs at denx.de
Tue Nov 1 18:17:43 EST 2005


Hello,

Sorry, here comes the resubmit of the Patch because
corruption of whitespaces.

on a MPC8260 based Board, i succesfully wrote chars
over a SCC in UART Mode, but after i closed the port
and opened it again, the write() call failed!
(cpm_uart_tx_empty()returns continually 0).
The following Patch will fix this problem.

thanks
Heiko Schocher

[PATCH] ppc32:  Fix SCC Uart write problem after 2. open().

Signed-off-by: Heiko Schocher <hs at denx.de>

---
commit f27d5789521e3f70a293075a63d195b22f8156ed
tree 1b459d4a9a2795e39e1d415ff21f2a25a0d0fbe5
parent d2fcbaa6d5fcb3c1f80c98997dbcf6f6ee075f1b
author Heiko Schocher <hs at pollux.(none)> Mon, 31 Oct 2005 15:46:50 +0100
committer Heiko Schocher <hs at pollux.(none)> Mon, 31 Oct 2005 15:46:50 +0100

 drivers/serial/cpm_uart/cpm_uart_core.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/drivers/serial/cpm_uart/cpm_uart_core.c
b/drivers/serial/cpm_uart/cpm_uart_core.c
index a452c38..ac05ee9 100644
--- a/drivers/serial/cpm_uart/cpm_uart_core.c
+++ b/drivers/serial/cpm_uart/cpm_uart_core.c
@@ -445,6 +445,10 @@ static void cpm_uart_shutdown(struct uar
 		/* Shut them really down and reinit buffer descriptors */
 		cpm_line_cr_cmd(line, CPM_CR_STOP_TX);
 		cpm_uart_initbd(pinfo);
+		if (IS_SMC(pinfo))
+			cpm_uart_init_smc(pinfo);
+		else
+			cpm_uart_init_scc(pinfo);
 	}
 }





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