tty: amba-pl011: prepare REG_* register indexes

Prepare for REG_* register accessors.  This change involves introducing
pl011_reg_to_offset() to convert REG_* to the hardware register offset,
and converting all call sites to use REG_* names.  We need to fix up
locations where we check for equivalence of register offsets as well.

Much of this change was made via these sed expressions:
s/ST_UART01[1x]\(_[^_]*\|_LCRH_[TR]X\)\>/REG_ST\1/
s/UART01[1x]_\(DR\|RSR\|ECR\|FR\|ILPR\|[IF]BRD\|LCRH\|CR\|IFLS\|IMSC\|RIS\|MIS\|ICR\|DMACR\)\>/REG_\1/g

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index c9ae0a144f10ee340a89ada8dd807373d7aa94da..62b9cb2754020bf9350a7edb7173b30e2dcbe2f1 100644 (file)
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -60,6 +60,8 @@
 #include <linux/io.h>
 #include <linux/acpi.h>
 
+#include "amba-pl011.h"
+
 #define UART_NR                        14
 
 #define SERIAL_AMBA_MAJOR      204
@@ -92,8 +94,8 @@ static unsigned int get_fifosize_arm(struct amba_device *dev)
 
 static struct vendor_data vendor_arm = {
        .ifls                   = UART011_IFLS_RX4_8|UART011_IFLS_TX4_8,
-       .lcrh_tx                = UART011_LCRH,
-       .lcrh_rx                = UART011_LCRH,
+       .lcrh_tx                = REG_LCRH,
+       .lcrh_rx                = REG_LCRH,
        .oversampling           = false,
        .dma_threshold          = false,
        .cts_event_workaround   = false,
@@ -117,8 +119,8 @@ static unsigned int get_fifosize_st(struct amba_device *dev)
 
 static struct vendor_data vendor_st = {
        .ifls                   = UART011_IFLS_RX_HALF|UART011_IFLS_TX_HALF,
-       .lcrh_tx                = ST_UART011_LCRH_TX,
-       .lcrh_rx                = ST_UART011_LCRH_RX,
+       .lcrh_tx                = REG_ST_LCRH_TX,
+       .lcrh_rx                = REG_ST_LCRH_RX,
        .oversampling           = true,
        .dma_threshold          = true,
        .cts_event_workaround   = true,
@@ -184,16 +186,22 @@ struct uart_amba_port {
 #endif
 };
 
+static unsigned int pl011_reg_to_offset(const struct uart_amba_port *uap,
+       unsigned int reg)
+{
+       return reg;
+}
+
 static unsigned int pl011_read(const struct uart_amba_port *uap,
        unsigned int reg)
 {
-       return readw(uap->port.membase + reg);
+       return readw(uap->port.membase + pl011_reg_to_offset(uap, reg));
 }
 
 static void pl011_write(unsigned int val, const struct uart_amba_port *uap,
        unsigned int reg)
 {
-       writew(val, uap->port.membase + reg);
+       writew(val, uap->port.membase + pl011_reg_to_offset(uap, reg));
 }
 
 /*
@@ -208,12 +216,12 @@ static int pl011_fifo_to_tty(struct uart_amba_port *uap)
        int fifotaken = 0;
 
        while (max_count--) {
-               status = pl011_read(uap, UART01x_FR);
+               status = pl011_read(uap, REG_FR);
                if (status & UART01x_FR_RXFE)
                        break;
 
                /* Take chars from the FIFO and update status */
-               ch = pl011_read(uap, UART01x_DR) | UART_DUMMY_DR_RX;
+               ch = pl011_read(uap, REG_DR) | UART_DUMMY_DR_RX;
                flag = TTY_NORMAL;
                uap->port.icount.rx++;
                fifotaken++;
@@ -295,7 +303,8 @@ static void pl011_dma_probe(struct uart_amba_port *uap)
        struct amba_pl011_data *plat = dev_get_platdata(uap->port.dev);
        struct device *dev = uap->port.dev;
        struct dma_slave_config tx_conf = {
-               .dst_addr = uap->port.mapbase + UART01x_DR,
+               .dst_addr = uap->port.mapbase +
+                                pl011_reg_to_offset(uap, REG_DR),
                .dst_addr_width = DMA_SLAVE_BUSWIDTH_1_BYTE,
                .direction = DMA_MEM_TO_DEV,
                .dst_maxburst = uap->fifosize >> 1,
@@ -350,7 +359,8 @@ static void pl011_dma_probe(struct uart_amba_port *uap)
 
        if (chan) {
                struct dma_slave_config rx_conf = {
-                       .src_addr = uap->port.mapbase + UART01x_DR,
+                       .src_addr = uap->port.mapbase +
+                               pl011_reg_to_offset(uap, REG_DR),
                        .src_addr_width = DMA_SLAVE_BUSWIDTH_1_BYTE,
                        .direction = DMA_DEV_TO_MEM,
                        .src_maxburst = uap->fifosize >> 2,
@@ -449,7 +459,7 @@ static void pl011_dma_tx_callback(void *data)
 
        dmacr = uap->dmacr;
        uap->dmacr = dmacr & ~UART011_TXDMAE;
-       pl011_write(uap->dmacr, uap, UART011_DMACR);
+       pl011_write(uap->dmacr, uap, REG_DMACR);
 
        /*
         * If TX DMA was disabled, it means that we've stopped the DMA for
@@ -563,7 +573,7 @@ static int pl011_dma_tx_refill(struct uart_amba_port *uap)
        dma_dev->device_issue_pending(chan);
 
        uap->dmacr |= UART011_TXDMAE;
-       pl011_write(uap->dmacr, uap, UART011_DMACR);
+       pl011_write(uap->dmacr, uap, REG_DMACR);
        uap->dmatx.queued = true;
 
        /*
@@ -599,9 +609,9 @@ static bool pl011_dma_tx_irq(struct uart_amba_port *uap)
         */
        if (uap->dmatx.queued) {
                uap->dmacr |= UART011_TXDMAE;
-               pl011_write(uap->dmacr, uap, UART011_DMACR);
+               pl011_write(uap->dmacr, uap, REG_DMACR);
                uap->im &= ~UART011_TXIM;
-               pl011_write(uap->im, uap, UART011_IMSC);
+               pl011_write(uap->im, uap, REG_IMSC);
                return true;
        }
 
@@ -611,7 +621,7 @@ static bool pl011_dma_tx_irq(struct uart_amba_port *uap)
         */
        if (pl011_dma_tx_refill(uap) > 0) {
                uap->im &= ~UART011_TXIM;
-               pl011_write(uap->im, uap, UART011_IMSC);
+               pl011_write(uap->im, uap, REG_IMSC);
                return true;
        }
        return false;
@@ -625,7 +635,7 @@ static inline void pl011_dma_tx_stop(struct uart_amba_port *uap)
 {
        if (uap->dmatx.queued) {
                uap->dmacr &= ~UART011_TXDMAE;
-               pl011_write(uap->dmacr, uap, UART011_DMACR);
+               pl011_write(uap->dmacr, uap, REG_DMACR);
        }
 }
 
@@ -651,12 +661,12 @@ static inline bool pl011_dma_tx_start(struct uart_amba_port *uap)
                if (!uap->dmatx.queued) {
                        if (pl011_dma_tx_refill(uap) > 0) {
                                uap->im &= ~UART011_TXIM;
-                               pl011_write(uap->im, uap, UART011_IMSC);
+                               pl011_write(uap->im, uap, REG_IMSC);
                        } else
                                ret = false;
                } else if (!(uap->dmacr & UART011_TXDMAE)) {
                        uap->dmacr |= UART011_TXDMAE;
-                       pl011_write(uap->dmacr, uap, UART011_DMACR);
+                       pl011_write(uap->dmacr, uap, REG_DMACR);
                }
                return ret;
        }
@@ -667,9 +677,9 @@ static inline bool pl011_dma_tx_start(struct uart_amba_port *uap)
         */
        dmacr = uap->dmacr;
        uap->dmacr &= ~UART011_TXDMAE;
-       pl011_write(uap->dmacr, uap, UART011_DMACR);
+       pl011_write(uap->dmacr, uap, REG_DMACR);
 
-       if (pl011_read(uap, UART01x_FR) & UART01x_FR_TXFF) {
+       if (pl011_read(uap, REG_FR) & UART01x_FR_TXFF) {
                /*
                 * No space in the FIFO, so enable the transmit interrupt
                 * so we know when there is space.  Note that once we've
@@ -678,13 +688,13 @@ static inline bool pl011_dma_tx_start(struct uart_amba_port *uap)
                return false;
        }
 
-       pl011_write(uap->port.x_char, uap, UART01x_DR);
+       pl011_write(uap->port.x_char, uap, REG_DR);
        uap->port.icount.tx++;
        uap->port.x_char = 0;
 
        /* Success - restore the DMA state */
        uap->dmacr = dmacr;
-       pl011_write(dmacr, uap, UART011_DMACR);
+       pl011_write(dmacr, uap, REG_DMACR);
 
        return true;
 }
@@ -712,7 +722,7 @@ __acquires(&uap->port.lock)
                             DMA_TO_DEVICE);
                uap->dmatx.queued = false;
                uap->dmacr &= ~UART011_TXDMAE;
-               pl011_write(uap->dmacr, uap, UART011_DMACR);
+               pl011_write(uap->dmacr, uap, REG_DMACR);
        }
 }
 
@@ -752,11 +762,11 @@ static int pl011_dma_rx_trigger_dma(struct uart_amba_port *uap)
        dma_async_issue_pending(rxchan);
 
        uap->dmacr |= UART011_RXDMAE;
-       pl011_write(uap->dmacr, uap, UART011_DMACR);
+       pl011_write(uap->dmacr, uap, REG_DMACR);
        uap->dmarx.running = true;
 
        uap->im &= ~UART011_RXIM;
-       pl011_write(uap->im, uap, UART011_IMSC);
+       pl011_write(uap->im, uap, REG_IMSC);
 
        return 0;
 }
@@ -815,7 +825,7 @@ static void pl011_dma_rx_chars(struct uart_amba_port *uap,
        if (dma_count == pending && readfifo) {
                /* Clear any error flags */
                pl011_write(UART011_OEIS | UART011_BEIS | UART011_PEIS |
-                           UART011_FEIS, uap, UART011_ICR);
+                           UART011_FEIS, uap, REG_ICR);
 
                /*
                 * If we read all the DMA'd characters, and we had an
@@ -863,7 +873,7 @@ static void pl011_dma_rx_irq(struct uart_amba_port *uap)
 
        /* Disable RX DMA - incoming data will wait in the FIFO */
        uap->dmacr &= ~UART011_RXDMAE;
-       pl011_write(uap->dmacr, uap, UART011_DMACR);
+       pl011_write(uap->dmacr, uap, REG_DMACR);
        uap->dmarx.running = false;
 
        pending = sgbuf->sg.length - state.residue;
@@ -883,7 +893,7 @@ static void pl011_dma_rx_irq(struct uart_amba_port *uap)
                dev_dbg(uap->port.dev, "could not retrigger RX DMA job "
                        "fall back to interrupt mode\n");
                uap->im |= UART011_RXIM;
-               pl011_write(uap->im, uap, UART011_IMSC);
+               pl011_write(uap->im, uap, REG_IMSC);
        }
 }
 
@@ -931,7 +941,7 @@ static void pl011_dma_rx_callback(void *data)
                dev_dbg(uap->port.dev, "could not retrigger RX DMA job "
                        "fall back to interrupt mode\n");
                uap->im |= UART011_RXIM;
-               pl011_write(uap->im, uap, UART011_IMSC);
+               pl011_write(uap->im, uap, REG_IMSC);
        }
 }
 
@@ -944,7 +954,7 @@ static inline void pl011_dma_rx_stop(struct uart_amba_port *uap)
 {
        /* FIXME.  Just disable the DMA enable */
        uap->dmacr &= ~UART011_RXDMAE;
-       pl011_write(uap->dmacr, uap, UART011_DMACR);
+       pl011_write(uap->dmacr, uap, REG_DMACR);
 }
 
 /*
@@ -988,7 +998,7 @@ static void pl011_dma_rx_poll(unsigned long args)
                spin_lock_irqsave(&uap->port.lock, flags);
                pl011_dma_rx_stop(uap);
                uap->im |= UART011_RXIM;
-               pl011_write(uap->im, uap, UART011_IMSC);
+               pl011_write(uap->im, uap, REG_IMSC);
                spin_unlock_irqrestore(&uap->port.lock, flags);
 
                uap->dmarx.running = false;
@@ -1050,7 +1060,7 @@ static void pl011_dma_startup(struct uart_amba_port *uap)
 skip_rx:
        /* Turn on DMA error (RX/TX will be enabled on demand) */
        uap->dmacr |= UART011_DMAONERR;
-       pl011_write(uap->dmacr, uap, UART011_DMACR);
+       pl011_write(uap->dmacr, uap, REG_DMACR);
 
        /*
         * ST Micro variants has some specific dma burst threshold
@@ -1059,7 +1069,7 @@ skip_rx:
         */
        if (uap->vendor->dma_threshold)
                pl011_write(ST_UART011_DMAWM_RX_16 | ST_UART011_DMAWM_TX_16,
-                           uap, ST_UART011_DMAWM);
+                           uap, REG_ST_DMAWM);
 
        if (uap->using_rx_dma) {
                if (pl011_dma_rx_trigger_dma(uap))
@@ -1084,12 +1094,12 @@ static void pl011_dma_shutdown(struct uart_amba_port *uap)
                return;
 
        /* Disable RX and TX DMA */
-       while (pl011_read(uap, UART01x_FR) & UART01x_FR_BUSY)
+       while (pl011_read(uap, REG_FR) & UART01x_FR_BUSY)
                barrier();
 
        spin_lock_irq(&uap->port.lock);
        uap->dmacr &= ~(UART011_DMAONERR | UART011_RXDMAE | UART011_TXDMAE);
-       pl011_write(uap->dmacr, uap, UART011_DMACR);
+       pl011_write(uap->dmacr, uap, REG_DMACR);
        spin_unlock_irq(&uap->port.lock);
 
        if (uap->using_tx_dma) {
@@ -1190,7 +1200,7 @@ static void pl011_stop_tx(struct uart_port *port)
            container_of(port, struct uart_amba_port, port);
 
        uap->im &= ~UART011_TXIM;
-       pl011_write(uap->im, uap, UART011_IMSC);
+       pl011_write(uap->im, uap, REG_IMSC);
        pl011_dma_tx_stop(uap);
 }
 
@@ -1200,7 +1210,7 @@ static void pl011_tx_chars(struct uart_amba_port *uap, bool from_irq);
 static void pl011_start_tx_pio(struct uart_amba_port *uap)
 {
        uap->im |= UART011_TXIM;
-       pl011_write(uap->im, uap, UART011_IMSC);
+       pl011_write(uap->im, uap, REG_IMSC);
        pl011_tx_chars(uap, false);
 }
 
@@ -1220,7 +1230,7 @@ static void pl011_stop_rx(struct uart_port *port)
 
        uap->im &= ~(UART011_RXIM|UART011_RTIM|UART011_FEIM|
                     UART011_PEIM|UART011_BEIM|UART011_OEIM);
-       pl011_write(uap->im, uap, UART011_IMSC);
+       pl011_write(uap->im, uap, REG_IMSC);
 
        pl011_dma_rx_stop(uap);
 }
@@ -1231,7 +1241,7 @@ static void pl011_enable_ms(struct uart_port *port)
            container_of(port, struct uart_amba_port, port);
 
        uap->im |= UART011_RIMIM|UART011_CTSMIM|UART011_DCDMIM|UART011_DSRMIM;
-       pl011_write(uap->im, uap, UART011_IMSC);
+       pl011_write(uap->im, uap, REG_IMSC);
 }
 
 static void pl011_rx_chars(struct uart_amba_port *uap)
@@ -1251,7 +1261,7 @@ __acquires(&uap->port.lock)
                        dev_dbg(uap->port.dev, "could not trigger RX DMA job "
                                "fall back to interrupt mode again\n");
                        uap->im |= UART011_RXIM;
-                       pl011_write(uap->im, uap, UART011_IMSC);
+                       pl011_write(uap->im, uap, REG_IMSC);
                } else {
 #ifdef CONFIG_DMA_ENGINE
                        /* Start Rx DMA poll */
@@ -1272,10 +1282,10 @@ static bool pl011_tx_char(struct uart_amba_port *uap, unsigned char c,
                          bool from_irq)
 {
        if (unlikely(!from_irq) &&
-           pl011_read(uap, UART01x_FR) & UART01x_FR_TXFF)
+           pl011_read(uap, REG_FR) & UART01x_FR_TXFF)
                return false; /* unable to transmit character */
 
-       pl011_write(c, uap, UART01x_DR);
+       pl011_write(c, uap, REG_DR);
        uap->port.icount.tx++;
 
        return true;
@@ -1322,7 +1332,7 @@ static void pl011_modem_status(struct uart_amba_port *uap)
 {
        unsigned int status, delta;
 
-       status = pl011_read(uap, UART01x_FR) & UART01x_FR_MODEM_ANY;
+       status = pl011_read(uap, REG_FR) & UART01x_FR_MODEM_ANY;
 
        delta = status ^ uap->old_status;
        uap->old_status = status;
@@ -1350,15 +1360,15 @@ static void check_apply_cts_event_workaround(struct uart_amba_port *uap)
                return;
 
        /* workaround to make sure that all bits are unlocked.. */
-       pl011_write(0x00, uap, UART011_ICR);
+       pl011_write(0x00, uap, REG_ICR);
 
        /*
         * WA: introduce 26ns(1 uart clk) delay before W1C;
         * single apb access will incur 2 pclk(133.12Mhz) delay,
         * so add 2 dummy reads
         */
-       dummy_read = pl011_read(uap, UART011_ICR);
-       dummy_read = pl011_read(uap, UART011_ICR);
+       dummy_read = pl011_read(uap, REG_ICR);
+       dummy_read = pl011_read(uap, REG_ICR);
 }
 
 static irqreturn_t pl011_int(int irq, void *dev_id)
@@ -1370,15 +1380,15 @@ static irqreturn_t pl011_int(int irq, void *dev_id)
        int handled = 0;
 
        spin_lock_irqsave(&uap->port.lock, flags);
-       imsc = pl011_read(uap, UART011_IMSC);
-       status = pl011_read(uap, UART011_RIS) & imsc;
+       imsc = pl011_read(uap, REG_IMSC);
+       status = pl011_read(uap, REG_RIS) & imsc;
        if (status) {
                do {
                        check_apply_cts_event_workaround(uap);
 
                        pl011_write(status & ~(UART011_TXIS|UART011_RTIS|
                                               UART011_RXIS),
-                                   uap, UART011_ICR);
+                                   uap, REG_ICR);
 
                        if (status & (UART011_RTIS|UART011_RXIS)) {
                                if (pl011_dma_rx_running(uap))
@@ -1395,7 +1405,7 @@ static irqreturn_t pl011_int(int irq, void *dev_id)
                        if (pass_counter-- == 0)
                                break;
 
-                       status = pl011_read(uap, UART011_RIS) & imsc;
+                       status = pl011_read(uap, REG_RIS) & imsc;
                } while (status != 0);
                handled = 1;
        }
@@ -1409,7 +1419,7 @@ static unsigned int pl011_tx_empty(struct uart_port *port)
 {
        struct uart_amba_port *uap =
            container_of(port, struct uart_amba_port, port);
-       unsigned int status = pl011_read(uap, UART01x_FR);
+       unsigned int status = pl011_read(uap, REG_FR);
        return status & (UART01x_FR_BUSY|UART01x_FR_TXFF) ? 0 : TIOCSER_TEMT;
 }
 
@@ -1418,7 +1428,7 @@ static unsigned int pl011_get_mctrl(struct uart_port *port)
        struct uart_amba_port *uap =
            container_of(port, struct uart_amba_port, port);
        unsigned int result = 0;
-       unsigned int status = pl011_read(uap, UART01x_FR);
+       unsigned int status = pl011_read(uap, REG_FR);
 
 #define TIOCMBIT(uartbit, tiocmbit)    \
        if (status & uartbit)           \
@@ -1438,7 +1448,7 @@ static void pl011_set_mctrl(struct uart_port *port, unsigned int mctrl)
            container_of(port, struct uart_amba_port, port);
        unsigned int cr;
 
-       cr = pl011_read(uap, UART011_CR);
+       cr = pl011_read(uap, REG_CR);
 
 #define        TIOCMBIT(tiocmbit, uartbit)             \
        if (mctrl & tiocmbit)           \
@@ -1458,7 +1468,7 @@ static void pl011_set_mctrl(struct uart_port *port, unsigned int mctrl)
        }
 #undef TIOCMBIT
 
-       pl011_write(cr, uap, UART011_CR);
+       pl011_write(cr, uap, REG_CR);
 }
 
 static void pl011_break_ctl(struct uart_port *port, int break_state)
@@ -1485,7 +1495,7 @@ static void pl011_quiesce_irqs(struct uart_port *port)
        struct uart_amba_port *uap =
            container_of(port, struct uart_amba_port, port);
 
-       pl011_write(pl011_read(uap, UART011_MIS), uap, UART011_ICR);
+       pl011_write(pl011_read(uap, REG_MIS), uap, REG_ICR);
        /*
         * There is no way to clear TXIM as this is "ready to transmit IRQ", so
         * we simply mask it. start_tx() will unmask it.
@@ -1499,8 +1509,8 @@ static void pl011_quiesce_irqs(struct uart_port *port)
         * (including tx queue), so we're also fine with start_tx()'s caller
         * side.
         */
-       pl011_write(pl011_read(uap, UART011_IMSC) & ~UART011_TXIM, uap,
-                   UART011_IMSC);
+       pl011_write(pl011_read(uap, REG_IMSC) & ~UART011_TXIM, uap,
+                   REG_IMSC);
 }
 
 static int pl011_get_poll_char(struct uart_port *port)
@@ -1515,11 +1525,11 @@ static int pl011_get_poll_char(struct uart_port *port)
         */
        pl011_quiesce_irqs(port);
 
-       status = pl011_read(uap, UART01x_FR);
+       status = pl011_read(uap, REG_FR);
        if (status & UART01x_FR_RXFE)
                return NO_POLL_CHAR;
 
-       return pl011_read(uap, UART01x_DR);
+       return pl011_read(uap, REG_DR);
 }
 
 static void pl011_put_poll_char(struct uart_port *port,
@@ -1528,10 +1538,10 @@ static void pl011_put_poll_char(struct uart_port *port,
        struct uart_amba_port *uap =
            container_of(port, struct uart_amba_port, port);
 
-       while (pl011_read(uap, UART01x_FR) & UART01x_FR_TXFF)
+       while (pl011_read(uap, REG_FR) & UART01x_FR_TXFF)
                barrier();
 
-       pl011_write(ch, uap, UART01x_DR);
+       pl011_write(ch, uap, REG_DR);
 }
 
 #endif /* CONFIG_CONSOLE_POLL */
@@ -1557,14 +1567,14 @@ static int pl011_hwinit(struct uart_port *port)
        /* Clear pending error and receive interrupts */
        pl011_write(UART011_OEIS | UART011_BEIS | UART011_PEIS |
                    UART011_FEIS | UART011_RTIS | UART011_RXIS,
-                   uap, UART011_ICR);
+                   uap, REG_ICR);
 
        /*
         * Save interrupts enable mask, and enable RX interrupts in case if
         * the interrupt is used for NMI entry.
         */
-       uap->im = pl011_read(uap, UART011_IMSC);
-       pl011_write(UART011_RTIM | UART011_RXIM, uap, UART011_IMSC);
+       uap->im = pl011_read(uap, REG_IMSC);
+       pl011_write(UART011_RTIM | UART011_RXIM, uap, REG_IMSC);
 
        if (dev_get_platdata(uap->port.dev)) {
                struct amba_pl011_data *plat;
@@ -1578,7 +1588,8 @@ static int pl011_hwinit(struct uart_port *port)
 
 static bool pl011_split_lcrh(const struct uart_amba_port *uap)
 {
-       return uap->lcrh_rx != uap->lcrh_tx;
+       return pl011_reg_to_offset(uap, uap->lcrh_rx) !=
+              pl011_reg_to_offset(uap, uap->lcrh_tx);
 }
 
 static void pl011_write_lcr_h(struct uart_amba_port *uap, unsigned int lcr_h)
@@ -1591,14 +1602,14 @@ static void pl011_write_lcr_h(struct uart_amba_port *uap, unsigned int lcr_h)
                 * to get this delay write read only register 10 times
                 */
                for (i = 0; i < 10; ++i)
-                       pl011_write(0xff, uap, UART011_MIS);
+                       pl011_write(0xff, uap, REG_MIS);
                pl011_write(lcr_h, uap, uap->lcrh_tx);
        }
 }
 
 static int pl011_allocate_irq(struct uart_amba_port *uap)
 {
-       pl011_write(uap->im, uap, UART011_IMSC);
+       pl011_write(uap->im, uap, REG_IMSC);
 
        return request_irq(uap->port.irq, pl011_int, 0, "uart-pl011", uap);
 }
@@ -1613,11 +1624,11 @@ static void pl011_enable_interrupts(struct uart_amba_port *uap)
        spin_lock_irq(&uap->port.lock);
 
        /* Clear out any spuriously appearing RX interrupts */
-       pl011_write(UART011_RTIS | UART011_RXIS, uap, UART011_ICR);
+       pl011_write(UART011_RTIS | UART011_RXIS, uap, REG_ICR);
        uap->im = UART011_RTIM;
        if (!pl011_dma_rx_running(uap))
                uap->im |= UART011_RXIM;
-       pl011_write(uap->im, uap, UART011_IMSC);
+       pl011_write(uap->im, uap, REG_IMSC);
        spin_unlock_irq(&uap->port.lock);
 }
 
@@ -1636,21 +1647,21 @@ static int pl011_startup(struct uart_port *port)
        if (retval)
                goto clk_dis;
 
-       pl011_write(uap->vendor->ifls, uap, UART011_IFLS);
+       pl011_write(uap->vendor->ifls, uap, REG_IFLS);
 
        spin_lock_irq(&uap->port.lock);
 
        /* restore RTS and DTR */
        cr = uap->old_cr & (UART011_CR_RTS | UART011_CR_DTR);
        cr |= UART01x_CR_UARTEN | UART011_CR_RXE | UART011_CR_TXE;
-       pl011_write(cr, uap, UART011_CR);
+       pl011_write(cr, uap, REG_CR);
 
        spin_unlock_irq(&uap->port.lock);
 
        /*
         * initialise the old status of the modem signals
         */
-       uap->old_status = pl011_read(uap, UART01x_FR) & UART01x_FR_MODEM_ANY;
+       uap->old_status = pl011_read(uap, REG_FR) & UART01x_FR_MODEM_ANY;
 
        /* Startup DMA */
        pl011_dma_startup(uap);
@@ -1707,11 +1718,11 @@ static void pl011_disable_uart(struct uart_amba_port *uap)
 
        uap->autorts = false;
        spin_lock_irq(&uap->port.lock);
-       cr = pl011_read(uap, UART011_CR);
+       cr = pl011_read(uap, REG_CR);
        uap->old_cr = cr;
        cr &= UART011_CR_RTS | UART011_CR_DTR;
        cr |= UART01x_CR_UARTEN | UART011_CR_TXE;
-       pl011_write(cr, uap, UART011_CR);
+       pl011_write(cr, uap, REG_CR);
        spin_unlock_irq(&uap->port.lock);
 
        /*
@@ -1728,8 +1739,8 @@ static void pl011_disable_interrupts(struct uart_amba_port *uap)
 
        /* mask all interrupts and clear all pending ones */
        uap->im = 0;
-       pl011_write(uap->im, uap, UART011_IMSC);
-       pl011_write(0xffff, uap, UART011_ICR);
+       pl011_write(uap->im, uap, REG_IMSC);
+       pl011_write(0xffff, uap, REG_ICR);
 
        spin_unlock_irq(&uap->port.lock);
 }
@@ -1881,8 +1892,8 @@ pl011_set_termios(struct uart_port *port, struct ktermios *termios,
                pl011_enable_ms(port);
 
        /* first, disable everything */
-       old_cr = pl011_read(uap, UART011_CR);
-       pl011_write(0, uap, UART011_CR);
+       old_cr = pl011_read(uap, REG_CR);
+       pl011_write(0, uap, REG_CR);
 
        if (termios->c_cflag & CRTSCTS) {
                if (old_cr & UART011_CR_RTS)
@@ -1915,17 +1926,17 @@ pl011_set_termios(struct uart_port *port, struct ktermios *termios,
                        quot -= 2;
        }
        /* Set baud rate */
-       pl011_write(quot & 0x3f, uap, UART011_FBRD);
-       pl011_write(quot >> 6, uap, UART011_IBRD);
+       pl011_write(quot & 0x3f, uap, REG_FBRD);
+       pl011_write(quot >> 6, uap, REG_IBRD);
 
        /*
         * ----------v----------v----------v----------v-----
         * NOTE: lcrh_tx and lcrh_rx MUST BE WRITTEN AFTER
-        * UART011_FBRD & UART011_IBRD.
+        * REG_FBRD & REG_IBRD.
         * ----------^----------^----------^----------^-----
         */
        pl011_write_lcr_h(uap, lcr_h);
-       pl011_write(old_cr, uap, UART011_CR);
+       pl011_write(old_cr, uap, REG_CR);
 
        spin_unlock_irqrestore(&port->lock, flags);
 }
@@ -2066,9 +2077,9 @@ static void pl011_console_putchar(struct uart_port *port, int ch)
        struct uart_amba_port *uap =
            container_of(port, struct uart_amba_port, port);
 
-       while (pl011_read(uap, UART01x_FR) & UART01x_FR_TXFF)
+       while (pl011_read(uap, REG_FR) & UART01x_FR_TXFF)
                barrier();
-       pl011_write(ch, uap, UART01x_DR);
+       pl011_write(ch, uap, REG_DR);
 }
 
 static void
@@ -2093,10 +2104,10 @@ pl011_console_write(struct console *co, const char *s, unsigned int count)
         *      First save the CR then disable the interrupts
         */
        if (!uap->vendor->always_enabled) {
-               old_cr = pl011_read(uap, UART011_CR);
+               old_cr = pl011_read(uap, REG_CR);
                new_cr = old_cr & ~UART011_CR_CTSEN;
                new_cr |= UART01x_CR_UARTEN | UART011_CR_TXE;
-               pl011_write(new_cr, uap, UART011_CR);
+               pl011_write(new_cr, uap, REG_CR);
        }
 
        uart_console_write(&uap->port, s, count, pl011_console_putchar);
@@ -2106,10 +2117,10 @@ pl011_console_write(struct console *co, const char *s, unsigned int count)
         *      and restore the TCR
         */
        do {
-               status = pl011_read(uap, UART01x_FR);
+               status = pl011_read(uap, REG_FR);
        } while (status & UART01x_FR_BUSY);
        if (!uap->vendor->always_enabled)
-               pl011_write(old_cr, uap, UART011_CR);
+               pl011_write(old_cr, uap, REG_CR);
 
        if (locked)
                spin_unlock(&uap->port.lock);
@@ -2122,7 +2133,7 @@ static void __init
 pl011_console_get_options(struct uart_amba_port *uap, int *baud,
                             int *parity, int *bits)
 {
-       if (pl011_read(uap, UART011_CR) & UART01x_CR_UARTEN) {
+       if (pl011_read(uap, REG_CR) & UART01x_CR_UARTEN) {
                unsigned int lcr_h, ibrd, fbrd;
 
                lcr_h = pl011_read(uap, uap->lcrh_tx);
@@ -2140,13 +2151,13 @@ pl011_console_get_options(struct uart_amba_port *uap, int *baud,
                else
                        *bits = 8;
 
-               ibrd = pl011_read(uap, UART011_IBRD);
-               fbrd = pl011_read(uap, UART011_FBRD);
+               ibrd = pl011_read(uap, REG_IBRD);
+               fbrd = pl011_read(uap, REG_FBRD);
 
                *baud = uap->port.uartclk * 4 / (64 * ibrd + fbrd);
 
                if (uap->vendor->oversampling) {
-                       if (pl011_read(uap, UART011_CR)
+                       if (pl011_read(uap, REG_CR)
                                  & ST_UART011_CR_OVSFACT)
                                *baud *= 2;
                }
@@ -2218,10 +2229,10 @@ static struct console amba_console = {
 
 static void pl011_putc(struct uart_port *port, int c)
 {
-       while (readl(port->membase + UART01x_FR) & UART01x_FR_TXFF)
+       while (readl(port->membase + REG_FR) & UART01x_FR_TXFF)
                ;
-       writeb(c, port->membase + UART01x_DR);
-       while (readl(port->membase + UART01x_FR) & UART01x_FR_BUSY)
+       writeb(c, port->membase + REG_DR);
+       while (readl(port->membase + REG_FR) & UART01x_FR_BUSY)
                ;
 }
 
@@ -2348,8 +2359,8 @@ static int pl011_register_port(struct uart_amba_port *uap)
        int ret;
 
        /* Ensure interrupts from this UART are masked and cleared */
-       pl011_write(0, uap, UART011_IMSC);
-       pl011_write(0xffff, uap, UART011_ICR);
+       pl011_write(0, uap, REG_IMSC);
+       pl011_write(0xffff, uap, REG_ICR);
 
        if (!amba_reg.state) {
                ret = uart_register_driver(&amba_reg);

diff --git a/drivers/tty/serial/amba-pl011.h b/drivers/tty/serial/amba-pl011.h
new file mode 100644 (file)
index 0000000..b7eb1bc
--- /dev/null
+++ b/drivers/tty/serial/amba-pl011.h
@@ -0,0 +1,32 @@
+#ifndef AMBA_PL011_H
+#define AMBA_PL011_H
+
+enum {
+       REG_DR = UART01x_DR,
+       REG_ST_DMAWM = ST_UART011_DMAWM,
+       REG_ST_TIMEOUT = ST_UART011_TIMEOUT,
+       REG_FR = UART01x_FR,
+       REG_ST_LCRH_RX = ST_UART011_LCRH_RX,
+       REG_IBRD = UART011_IBRD,
+       REG_FBRD = UART011_FBRD,
+       REG_LCRH = UART011_LCRH,
+       REG_ST_LCRH_TX = ST_UART011_LCRH_TX,
+       REG_CR = UART011_CR,
+       REG_IFLS = UART011_IFLS,
+       REG_IMSC = UART011_IMSC,
+       REG_RIS = UART011_RIS,
+       REG_MIS = UART011_MIS,
+       REG_ICR = UART011_ICR,
+       REG_DMACR = UART011_DMACR,
+       REG_ST_XFCR = ST_UART011_XFCR,
+       REG_ST_XON1 = ST_UART011_XON1,
+       REG_ST_XON2 = ST_UART011_XON2,
+       REG_ST_XOFF1 = ST_UART011_XOFF1,
+       REG_ST_XOFF2 = ST_UART011_XOFF2,
+       REG_ST_ITCR = ST_UART011_ITCR,
+       REG_ST_ITIP = ST_UART011_ITIP,
+       REG_ST_ABCR = ST_UART011_ABCR,
+       REG_ST_ABIMSC = ST_UART011_ABIMSC,
+};
+
+#endif