[PATCH] CPM_UART: Fixed SMC handling for CPM2 processors
Heiko Schocher
hs at denx.de
Mon Feb 12 21:33:42 EST 2007
Hello Vitaly,
I tried the Patch from Kalle Pokki
http://ozlabs.org/pipermail/linuxppc-embedded/2006-November/025108.html
but my SMC didnt work, without this patch, it works fine. I think that
the pram_base must be set the follwing way:
diff --git a/drivers/serial/cpm_uart/cpm_uart_core.c
b/drivers/serial/cpm_uart/cpm_uart_core.c
index ea85f6a..76ab6e5 100644
--- a/drivers/serial/cpm_uart/cpm_uart_core.c
+++ b/drivers/serial/cpm_uart/cpm_uart_core.c
@@ -1025,6 +1025,7 @@ int cpm_uart_drv_get_platform_data(struct
platform_device *pdev, int is_con)
struct uart_cpm_port *pinfo;
int line;
u32 mem, pram, pram_base;
+ int base;
idx = pdata->fs_no = fs_uart_get_id(pdata);
@@ -1050,11 +1051,12 @@ int cpm_uart_drv_get_platform_data(struct
platform_device *pdev, int is_con)
if (!(r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pram")))
return -EINVAL;
pram = (u32)ioremap(r->start, r->end - r->start + 1);
-
+ base = r->start;
+
r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pram_base");
if (r) {
pram_base = r->start;
- out_be16((u16 *)pram_base, pram & 0xffff);
+ out_be16((u16 *)pram_base, base & 0xffff);
}
if(idx > fsid_smc2_uart) {
with this patch it works fine :-)
Best regards
Heiko
--
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Office: Kirchenstr. 5, D-82194 Groebenzell, Germany
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