Merge master.kernel.org:/pub/scm/linux/kernel/git/paulus/powerpc

* master.kernel.org:/pub/scm/linux/kernel/git/paulus/powerpc: (194 commits)
  [POWERPC] Add missing EXPORTS for mpc52xx support
  [POWERPC] Remove obsolete PPC_52xx and update CLASSIC32 comment
  [POWERPC] ps3: add a default zImage target
  [POWERPC] Add of_platform_bus support to mpc52xx psc uart driver
  [POWERPC] typo fix and whitespace cleanup on mpc52xx-uart driver
  [POWERPC] Fix debug printks for 32-bit resources in the PCI code
  [POWERPC] Replace kmalloc+memset with kzalloc
  [POWERPC] Linkstation / kurobox support
  [POWERPC] Add the e300c3 core to the CPU table.
  [POWERPC] ppc: m48t35 add missing bracket
  [POWERPC] iSeries: don't build head_64.o unnecessarily
  [POWERPC] iSeries: stop dt_mod.o being rebuilt unnecessarily
  [POWERPC] Fix cputable.h for combined build
  [POWERPC] Allow CONFIG_BOOTX_TEXT on iSeries
  [POWERPC] Allow xmon to build on legacy iSeries
  [POWERPC] Change ppc64_defconfig to use AUTOFS_V4 not V3
  [POWERPC] Tell firmware we can handle POWER6 compatible mode
  [POWERPC] Clean images in arch/powerpc/boot
  [POWERPC] Fix OF pci flags parsing
  [POWERPC] defconfig for lite5200 board
  ...

1 files changed, 74 insertions, 0 deletions

diff --git a/arch/powerpc/boot/ns16550.c b/arch/powerpc/boot/ns16550.c
new file mode 100644
index 000000000000..1ffe72e35cdc
--- /dev/null
+++ b/arch/powerpc/boot/ns16550.c
@@ -0,0 +1,74 @@
+/*
+ * 16550 serial console support.
+ *
+ * Original copied from <file:arch/ppc/boot/common/ns16550.c>
+ * (which had no copyright)
+ * Modifications: 2006 (c) MontaVista Software, Inc.
+ *
+ * Modified by: Mark A. Greer <mgreer@mvista.com>
+ */
+#include <stdarg.h>
+#include <stddef.h>
+#include "types.h"
+#include "string.h"
+#include "stdio.h"
+#include "io.h"
+#include "ops.h"
+
+#define UART_DLL        0       /* Out: Divisor Latch Low */
+#define UART_DLM        1       /* Out: Divisor Latch High */
+#define UART_FCR        2       /* Out: FIFO Control Register */
+#define UART_LCR        3       /* Out: Line Control Register */
+#define UART_MCR        4       /* Out: Modem Control Register */
+#define UART_LSR        5       /* In:  Line Status Register */
+#define UART_LSR_THRE   0x20    /* Transmit-hold-register empty */
+#define UART_LSR_DR     0x01    /* Receiver data ready */
+#define UART_MSR        6       /* In:  Modem Status Register */
+#define UART_SCR        7       /* I/O: Scratch Register */
+
+static unsigned char *reg_base;
+static u32 reg_shift;
+
+static int ns16550_open(void)
+{
+        out_8(reg_base + (UART_FCR << reg_shift), 0x06);
+        return 0;
+}
+
+static void ns16550_putc(unsigned char c)
+{
+        while ((in_8(reg_base + (UART_LSR << reg_shift)) & UART_LSR_THRE) == 0);
+        out_8(reg_base, c);
+}
+
+static unsigned char ns16550_getc(void)
+{
+        while ((in_8(reg_base + (UART_LSR << reg_shift)) & UART_LSR_DR) == 0);
+        return in_8(reg_base);
+}
+
+static u8 ns16550_tstc(void)
+{
+        return ((in_8(reg_base + (UART_LSR << reg_shift)) & UART_LSR_DR) != 0);
+}
+
+int ns16550_console_init(void *devp, struct serial_console_data *scdp)
+{
+        int n;
+
+        n = getprop(devp, "virtual-reg", &reg_base, sizeof(reg_base));
+        if (n != sizeof(reg_base))
+                return -1;
+
+        n = getprop(devp, "reg-shift", &reg_shift, sizeof(reg_shift));
+        if (n != sizeof(reg_shift))
+                reg_shift = 0;
+
+        scdp->open = ns16550_open;
+        scdp->putc = ns16550_putc;
+        scdp->getc = ns16550_getc;
+        scdp->tstc = ns16550_tstc;
+        scdp->close = NULL;
+
+        return 0;
+}