Hello.
Manuel Lauss wrote:
Hook up the Alchemy on-chip uarts with the platform 8250 PM callback
and enable/disable the uart blocks as needed.
Tested on Au1200.
Signed-off-by: Manuel Lauss <manuel.lauss@xxxxxxxxx>
---
arch/mips/alchemy/common/platform.c | 17 +++++++++++++++++
arch/mips/alchemy/common/power.c | 32 --------------------------------
2 files changed, 17 insertions(+), 32 deletions(-)
diff --git a/arch/mips/alchemy/common/platform.c b/arch/mips/alchemy/common/platform.c
index 2580e77..70f4abd 100644
--- a/arch/mips/alchemy/common/platform.c
+++ b/arch/mips/alchemy/common/platform.c
@@ -21,6 +21,22 @@
#include <asm/mach-au1x00/au1100_mmc.h>
#include <asm/mach-au1x00/au1xxx_eth.h>
+static void alchemy_8250_pm(struct uart_port *port, unsigned int state,
+ unsigned int old_state)
+{
+ if (state == 0) { /* power on */
+ __raw_writel(0, port->membase + UART_MOD_CNTRL);
+ wmb();
+ __raw_writel(1, port->membase + UART_MOD_CNTRL);
+ wmb();
+ __raw_writel(3, port->membase + UART_MOD_CNTRL);
+ wmb();
+ } else if (state == 3) { /* power off */
+ __raw_writel(0, port->membase + UART_MOD_CNTRL);
+ wmb();
+ }
+}
A *switch* statement seems more fitting here...
WBR, Sergei
