[POWERPC] Separate MPC52xx PSC FIFO registers from rest of PSC

This is in preparation for the addition of MPC512x
PSC support.  The main difference in the 512x is
in the fifo registers.

Signed-off-by: John Rigby <jrigby@freescale.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

diff --git a/drivers/serial/mpc52xx_uart.c b/drivers/serial/mpc52xx_uart.c
index 7e3ba8b455a82a061b01b88d02345a9e8623a3a1..141b8da7e0e7d3beaeb527e871f5fe691a685c3f 100644 (file)
--- a/drivers/serial/mpc52xx_uart.c
+++ b/drivers/serial/mpc52xx_uart.c
@@ -112,6 +112,7 @@ static void mpc52xx_uart_of_enumerate(void);
 #endif
 
 #define PSC(port) ((struct mpc52xx_psc __iomem *)((port)->membase))
+#define FIFO(port) ((struct mpc52xx_psc_fifo __iomem *)(PSC(port)+1))
 
 
 /* Forward declaration of the interruption handling routine */
@@ -223,6 +224,7 @@ static int
 mpc52xx_uart_startup(struct uart_port *port)
 {
        struct mpc52xx_psc __iomem *psc = PSC(port);
+       struct mpc52xx_psc_fifo __iomem *fifo = FIFO(port);
        int ret;
 
        /* Request IRQ */
@@ -239,10 +241,10 @@ mpc52xx_uart_startup(struct uart_port *port)
 
        out_be16(&psc->mpc52xx_psc_clock_select, 0xdd00); /* /16 prescaler on */
 
-       out_8(&psc->rfcntl, 0x00);
-       out_be16(&psc->rfalarm, 0x1ff);
-       out_8(&psc->tfcntl, 0x07);
-       out_be16(&psc->tfalarm, 0x80);
+       out_8(&fifo->rfcntl, 0x00);
+       out_be16(&fifo->rfalarm, 0x1ff);
+       out_8(&fifo->tfcntl, 0x07);
+       out_be16(&fifo->tfalarm, 0x80);
 
        port->read_status_mask |= MPC52xx_PSC_IMR_RXRDY | MPC52xx_PSC_IMR_TXRDY;
        out_be16(&psc->mpc52xx_psc_imr,port->read_status_mask);

diff --git a/include/asm-powerpc/mpc52xx_psc.h b/include/asm-powerpc/mpc52xx_psc.h
index 26690d2b32f53dc7b9b6581c7e8cc3b480a1ceeb..bea42b95390f3aec6e1bf6732faba42f9785ddd4 100644 (file)
--- a/include/asm-powerpc/mpc52xx_psc.h
+++ b/include/asm-powerpc/mpc52xx_psc.h
@@ -153,6 +153,9 @@ struct mpc52xx_psc {
        u8              reserved16[3];
        u8              irfdr;          /* PSC + 0x54 */
        u8              reserved17[3];
+};
+
+struct mpc52xx_psc_fifo {
        u16             rfnum;          /* PSC + 0x58 */
        u16             reserved18;
        u16             tfnum;          /* PSC + 0x5c */

diff --git a/include/asm-ppc/mpc52xx_psc.h b/include/asm-ppc/mpc52xx_psc.h
index c82b8d49a7da9fa21e978f8ccdeb1dddb7ec4f04..39fcd02cd4e8c1994d753de37eac1fb10c6689f3 100644 (file)
--- a/include/asm-ppc/mpc52xx_psc.h
+++ b/include/asm-ppc/mpc52xx_psc.h
@@ -159,6 +159,9 @@ struct mpc52xx_psc {
        u8              reserved16[3];
        u8              irfdr;          /* PSC + 0x54 */
        u8              reserved17[3];
+};
+
+struct mpc52xx_psc_fifo {
        u16             rfnum;          /* PSC + 0x58 */
        u16             reserved18;
        u16             tfnum;          /* PSC + 0x5c */