6 files changed, 175 insertions, 30 deletions

diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index bef4a9622ed7..5b48ac22c9c5 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -354,21 +354,24 @@ config SERIAL_CLPS711X_CONSOLE
           kernel at boot time.)
 
 config SERIAL_S3C2410
-        tristate "Samsung S3C2410 Serial port support"
+        tristate "Samsung S3C2410/S3C2440/S3C2442/S3C2412 Serial port support"
         depends on ARM && ARCH_S3C2410
         select SERIAL_CORE
         help
-          Support for the on-chip UARTs on the Samsung S3C2410X CPU,
+          Support for the on-chip UARTs on the Samsung S3C24XX series CPUs,
           providing /dev/ttySAC0, 1 and 2 (note, some machines may not
           provide all of these ports, depending on how the serial port
           pins are configured.
 
+          Currently this driver supports the UARTS on the S3C2410, S3C2440,
+          S3C2442, S3C2412 and S3C2413 CPUs.
+
 config SERIAL_S3C2410_CONSOLE
         bool "Support for console on S3C2410 serial port"
         depends on SERIAL_S3C2410=y
         select SERIAL_CORE_CONSOLE
         help
-          Allow selection of the S3C2410 on-board serial ports for use as
+          Allow selection of the S3C24XX on-board serial ports for use as
           an virtual console.
 
           Even if you say Y here, the currently visible virtual console
diff --git a/drivers/serial/s3c2410.c b/drivers/serial/s3c2410.c
index 53c2465bad2d..837b6da520b3 100644
--- a/drivers/serial/s3c2410.c
+++ b/drivers/serial/s3c2410.c
@@ -872,6 +872,8 @@ static const char *s3c24xx_serial_type(struct uart_port *port)
                 return "S3C2410";
         case PORT_S3C2440:
                 return "S3C2440";
+        case PORT_S3C2412:
+                return "S3C2412";
         default:
                 return NULL;
         }
@@ -1528,6 +1530,141 @@ static inline void s3c2440_serial_exit(void)
 #define s3c2440_uart_inf_at NULL
 #endif /* CONFIG_CPU_S3C2440 */
 
+#if defined(CONFIG_CPU_S3C2412) || defined(CONFIG_CPU_S3C2413)
+
+static int s3c2412_serial_setsource(struct uart_port *port,
+                                     struct s3c24xx_uart_clksrc *clk)
+{
+        unsigned long ucon = rd_regl(port, S3C2410_UCON);
+
+        ucon &= ~S3C2412_UCON_CLKMASK;
+
+        if (strcmp(clk->name, "uclk") == 0)
+                ucon |= S3C2440_UCON_UCLK;
+        else if (strcmp(clk->name, "pclk") == 0)
+                ucon |= S3C2440_UCON_PCLK;
+        else if (strcmp(clk->name, "usysclk") == 0)
+                ucon |= S3C2412_UCON_USYSCLK;
+        else {
+                printk(KERN_ERR "unknown clock source %s\n", clk->name);
+                return -EINVAL;
+        }
+
+        wr_regl(port, S3C2410_UCON, ucon);
+        return 0;
+}
+
+
+static int s3c2412_serial_getsource(struct uart_port *port,
+                                    struct s3c24xx_uart_clksrc *clk)
+{
+        unsigned long ucon = rd_regl(port, S3C2410_UCON);
+
+        switch (ucon & S3C2412_UCON_CLKMASK) {
+        case S3C2412_UCON_UCLK:
+                clk->divisor = 1;
+                clk->name = "uclk";
+                break;
+
+        case S3C2412_UCON_PCLK:
+        case S3C2412_UCON_PCLK2:
+                clk->divisor = 1;
+                clk->name = "pclk";
+                break;
+
+        case S3C2412_UCON_USYSCLK:
+                clk->divisor = 1;
+                clk->name = "usysclk";
+                break;
+        }
+
+        return 0;
+}
+
+static int s3c2412_serial_resetport(struct uart_port *port,
+                                    struct s3c2410_uartcfg *cfg)
+{
+        unsigned long ucon = rd_regl(port, S3C2410_UCON);
+
+        dbg("%s: port=%p (%08lx), cfg=%p\n",
+            __FUNCTION__, port, port->mapbase, cfg);
+
+        /* ensure we don't change the clock settings... */
+
+        ucon &= S3C2412_UCON_CLKMASK;
+
+        wr_regl(port, S3C2410_UCON,  ucon | cfg->ucon);
+        wr_regl(port, S3C2410_ULCON, cfg->ulcon);
+
+        /* reset both fifos */
+
+        wr_regl(port, S3C2410_UFCON, cfg->ufcon | S3C2410_UFCON_RESETBOTH);
+        wr_regl(port, S3C2410_UFCON, cfg->ufcon);
+
+        return 0;
+}
+
+static struct s3c24xx_uart_info s3c2412_uart_inf = {
+        .name           = "Samsung S3C2412 UART",
+        .type           = PORT_S3C2412,
+        .fifosize       = 64,
+        .rx_fifomask    = S3C2440_UFSTAT_RXMASK,
+        .rx_fifoshift   = S3C2440_UFSTAT_RXSHIFT,
+        .rx_fifofull    = S3C2440_UFSTAT_RXFULL,
+        .tx_fifofull    = S3C2440_UFSTAT_TXFULL,
+        .tx_fifomask    = S3C2440_UFSTAT_TXMASK,
+        .tx_fifoshift   = S3C2440_UFSTAT_TXSHIFT,
+        .get_clksrc     = s3c2412_serial_getsource,
+        .set_clksrc     = s3c2412_serial_setsource,
+        .reset_port     = s3c2412_serial_resetport,
+};
+
+/* device management */
+
+static int s3c2412_serial_probe(struct platform_device *dev)
+{
+        dbg("s3c2440_serial_probe: dev=%p\n", dev);
+        return s3c24xx_serial_probe(dev, &s3c2440_uart_inf);
+}
+
+static struct platform_driver s3c2412_serial_drv = {
+        .probe          = s3c2412_serial_probe,
+        .remove         = s3c24xx_serial_remove,
+        .suspend        = s3c24xx_serial_suspend,
+        .resume         = s3c24xx_serial_resume,
+        .driver         = {
+                .name   = "s3c2412-uart",
+                .owner  = THIS_MODULE,
+        },
+};
+
+
+static inline int s3c2412_serial_init(void)
+{
+        return s3c24xx_serial_init(&s3c2412_serial_drv, &s3c2412_uart_inf);
+}
+
+static inline void s3c2412_serial_exit(void)
+{
+        platform_driver_unregister(&s3c2412_serial_drv);
+}
+
+#define s3c2412_uart_inf_at &s3c2412_uart_inf
+#else
+
+static inline int s3c2412_serial_init(void)
+{
+        return 0;
+}
+
+static inline void s3c2412_serial_exit(void)
+{
+}
+
+#define s3c2412_uart_inf_at NULL
+#endif /* CONFIG_CPU_S3C2440 */
+
+
 /* module initialisation code */
 
 static int __init s3c24xx_serial_modinit(void)
@@ -1542,6 +1679,7 @@ static int __init s3c24xx_serial_modinit(void)
 
         s3c2400_serial_init();
         s3c2410_serial_init();
+        s3c2412_serial_init();
         s3c2440_serial_init();
 
         return 0;
@@ -1551,6 +1689,7 @@ static void __exit s3c24xx_serial_modexit(void)
 {
         s3c2400_serial_exit();
         s3c2410_serial_exit();
+        s3c2412_serial_exit();
         s3c2440_serial_exit();
 
         uart_unregister_driver(&s3c24xx_uart_drv);
@@ -1773,6 +1912,8 @@ static int s3c24xx_serial_initconsole(void)
                 info = s3c2410_uart_inf_at;
         } else if (strcmp(dev->name, "s3c2440-uart") == 0) {
                 info = s3c2440_uart_inf_at;
+        } else if (strcmp(dev->name, "s3c2412-uart") == 0) {
+                info = s3c2412_uart_inf_at;
         } else {
                 printk(KERN_ERR "s3c24xx: no driver for %s\n", dev->name);
                 return 0;
@@ -1796,4 +1937,4 @@ console_initcall(s3c24xx_serial_initconsole);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
-MODULE_DESCRIPTION("Samsung S3C2410/S3C2440 Serial port driver");
+MODULE_DESCRIPTION("Samsung S3C2410/S3C2440/S3C2412 Serial port driver");
diff --git a/drivers/serial/sunhv.c b/drivers/serial/sunhv.c
index f137804b3133..ba22e256c6f7 100644
--- a/drivers/serial/sunhv.c
+++ b/drivers/serial/sunhv.c
@@ -427,31 +427,32 @@ static int __init hv_console_compatible(char *buf, int len)
 
 static unsigned int __init get_interrupt(void)
 {
-        const char *cons_str = "console";
-        const char *compat_str = "compatible";
-        int node = prom_getchild(sun4v_vdev_root);
-        char buf[64];
-        int err, len;
-
-        node = prom_searchsiblings(node, cons_str);
-        if (!node)
-                return 0;
+        struct device_node *dev_node;
 
-        len = prom_getproplen(node, compat_str);
-        if (len == 0 || len == -1)
-                return 0;
+        dev_node = sun4v_vdev_root->child;
+        while (dev_node != NULL) {
+                struct property *prop;
 
-        err = prom_getproperty(node, compat_str, buf, 64);
-        if (err == -1)
-                return 0;
+                if (strcmp(dev_node->name, "console"))
+                        goto next_sibling;
+
+                prop = of_find_property(dev_node, "compatible", NULL);
+                if (!prop)
+                        goto next_sibling;
 
-        if (!hv_console_compatible(buf, len))
+                if (hv_console_compatible(prop->value, prop->length))
+                        break;
+
+        next_sibling:
+                dev_node = dev_node->sibling;
+        }
+        if (!dev_node)
                 return 0;
 
         /* Ok, the this is the OBP node for the sun4v hypervisor
          * console device.  Decode the interrupt.
          */
-        return sun4v_vdev_device_interrupt(node);
+        return sun4v_vdev_device_interrupt(dev_node);
 }
 
 static int __init sunhv_init(void)
diff --git a/drivers/serial/sunsab.c b/drivers/serial/sunsab.c
index bfbe9dc90cca..e4c0fd2d6a9d 100644
--- a/drivers/serial/sunsab.c
+++ b/drivers/serial/sunsab.c
@@ -984,19 +984,19 @@ static void __init for_each_sab_edev(void (*callback)(struct linux_ebus_device *
 
         for_each_ebus(ebus) {
                 for_each_ebusdev(edev, ebus) {
-                        if (!strcmp(edev->prom_name, "se")) {
+                        if (!strcmp(edev->prom_node->name, "se")) {
                                 callback(edev, arg);
                                 continue;
-                        } else if (!strcmp(edev->prom_name, "serial")) {
-                                char compat[32];
+                        } else if (!strcmp(edev->prom_node->name, "serial")) {
+                                char *compat;
                                 int clen;
 
                                 /* On RIO this can be an SE, check it.  We could
                                  * just check ebus->is_rio, but this is more portable.
                                  */
-                                clen = prom_getproperty(edev->prom_node, "compatible",
-                                                        compat, sizeof(compat));
-                                if (clen > 0) {
+                                compat = of_get_property(edev->prom_node,
+                                                         "compatible", &clen);
+                                if (compat && clen > 0) {
                                         if (strncmp(compat, "sab82532", 8) == 0) {
                                                 callback(edev, arg);
                                                 continue;
diff --git a/drivers/serial/sunsu.c b/drivers/serial/sunsu.c
index 4cdb610cdd37..0268b307c01e 100644
--- a/drivers/serial/sunsu.c
+++ b/drivers/serial/sunsu.c
@@ -1053,7 +1053,7 @@ static void sunsu_autoconfig(struct uart_sunsu_port *up)
          */
         for_each_ebus(ebus) {
                 for_each_ebusdev(dev, ebus) {
-                        if (dev->prom_node == up->port_node) {
+                        if (dev->prom_node->node == up->port_node) {
                                 /*
                                  * The EBus is broken on sparc; it delivers
                                  * virtual addresses in resources. Oh well...
@@ -1073,7 +1073,7 @@ static void sunsu_autoconfig(struct uart_sunsu_port *up)
 #ifdef CONFIG_SPARC64
         for_each_isa(isa_br) {
                 for_each_isadev(isa_dev, isa_br) {
-                        if (isa_dev->prom_node == up->port_node) {
+                        if (isa_dev->prom_node->node == up->port_node) {
                                 /* Same on sparc64. Cool architecure... */
                                 up->port.membase = (char *) isa_dev->resource.start;
                                 up->port.mapbase = isa_dev->resource.start;
diff --git a/drivers/serial/sunzilog.c b/drivers/serial/sunzilog.c
index 5b6569728a9c..76c9bac9271f 100644
--- a/drivers/serial/sunzilog.c
+++ b/drivers/serial/sunzilog.c
@@ -1106,7 +1106,7 @@ static struct zilog_layout __iomem * __init get_zs_sun4u(int chip, int zsnode)
                                 + FHC_UREGS_ICLR;
                         imap = central_bus->child->fhc_regs.uregs
                                 + FHC_UREGS_IMAP;
-                        zilog_irq = build_irq(12, 0, iclr, imap);
+                        zilog_irq = build_irq(0, iclr, imap);
                 } else {
                         err = prom_getproperty(zsnode, "interrupts",
                                                (char *) &sun4u_ino,