ARM: OMAP: Split uncompress.h to mach-omap1 and mach-omap2

This allows us to eventually move omap2+ to generic
debug code that's configured in Kconfig for the port.

Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 119 insertions, 2 deletions

diff --git a/arch/arm/mach-omap1/include/mach/uncompress.h b/arch/arm/mach-omap1/include/mach/uncompress.h
index 0ff22dc075c7..e9eb83468622 100644
--- a/arch/arm/mach-omap1/include/mach/uncompress.h
+++ b/arch/arm/mach-omap1/include/mach/uncompress.h
@@ -1,5 +1,122 @@
 /*
- * arch/arm/mach-omap1/include/mach/uncompress.h
+ * arch/arm/plat-omap/include/mach/uncompress.h
+ *
+ * Serial port stubs for kernel decompress status messages
+ *
+ * Initially based on:
+ * linux-2.4.15-rmk1-dsplinux1.6/arch/arm/plat-omap/include/mach1510/uncompress.h
+ * Copyright (C) 2000 RidgeRun, Inc.
+ * Author: Greg Lonnon <glonnon@ridgerun.com>
+ *
+ * Rewritten by:
+ * Author: <source@mvista.com>
+ * 2004 (c) MontaVista Software, Inc.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
  */
 
-#include <plat/uncompress.h>
+#include <linux/types.h>
+#include <linux/serial_reg.h>
+
+#include <asm/memory.h>
+#include <asm/mach-types.h>
+
+#include <plat/serial.h>
+
+#define MDR1_MODE_MASK                  0x07
+
+volatile u8 *uart_base;
+int uart_shift;
+
+/*
+ * Store the DEBUG_LL uart number into memory.
+ * See also debug-macro.S, and serial.c for related code.
+ */
+static void set_omap_uart_info(unsigned char port)
+{
+        /*
+         * Get address of some.bss variable and round it down
+         * a la CONFIG_AUTO_ZRELADDR.
+         */
+        u32 ram_start = (u32)&uart_shift & 0xf8000000;
+        u32 *uart_info = (u32 *)(ram_start + OMAP_UART_INFO_OFS);
+        *uart_info = port;
+}
+
+static void putc(int c)
+{
+        if (!uart_base)
+                return;
+
+        /* Check for UART 16x mode */
+        if ((uart_base[UART_OMAP_MDR1 << uart_shift] & MDR1_MODE_MASK) != 0)
+                return;
+
+        while (!(uart_base[UART_LSR << uart_shift] & UART_LSR_THRE))
+                barrier();
+        uart_base[UART_TX << uart_shift] = c;
+}
+
+static inline void flush(void)
+{
+}
+
+/*
+ * Macros to configure UART1 and debug UART
+ */
+#define _DEBUG_LL_ENTRY(mach, dbg_uart, dbg_shft, dbg_id)               \
+        if (machine_is_##mach()) {                                      \
+                uart_base = (volatile u8 *)(dbg_uart);                  \
+                uart_shift = (dbg_shft);                                \
+                port = (dbg_id);                                        \
+                set_omap_uart_info(port);                               \
+                break;                                                  \
+        }
+
+#define DEBUG_LL_OMAP7XX(p, mach)                                       \
+        _DEBUG_LL_ENTRY(mach, OMAP1_UART##p##_BASE, OMAP7XX_PORT_SHIFT, \
+                OMAP1UART##p)
+
+#define DEBUG_LL_OMAP1(p, mach)                                         \
+        _DEBUG_LL_ENTRY(mach, OMAP1_UART##p##_BASE, OMAP_PORT_SHIFT,    \
+                OMAP1UART##p)
+
+static inline void arch_decomp_setup(void)
+{
+        int port = 0;
+
+        /*
+         * Initialize the port based on the machine ID from the bootloader.
+         * Note that we're using macros here instead of switch statement
+         * as machine_is functions are optimized out for the boards that
+         * are not selected.
+         */
+        do {
+                /* omap7xx/8xx based boards using UART1 with shift 0 */
+                DEBUG_LL_OMAP7XX(1, herald);
+                DEBUG_LL_OMAP7XX(1, omap_perseus2);
+
+                /* omap15xx/16xx based boards using UART1 */
+                DEBUG_LL_OMAP1(1, ams_delta);
+                DEBUG_LL_OMAP1(1, nokia770);
+                DEBUG_LL_OMAP1(1, omap_h2);
+                DEBUG_LL_OMAP1(1, omap_h3);
+                DEBUG_LL_OMAP1(1, omap_innovator);
+                DEBUG_LL_OMAP1(1, omap_osk);
+                DEBUG_LL_OMAP1(1, omap_palmte);
+                DEBUG_LL_OMAP1(1, omap_palmz71);
+
+                /* omap15xx/16xx based boards using UART2 */
+                DEBUG_LL_OMAP1(2, omap_palmtt);
+
+                /* omap15xx/16xx based boards using UART3 */
+                DEBUG_LL_OMAP1(3, sx1);
+        } while (0);
+}
+
+/*
+ * nothing to do
+ */
+#define arch_decomp_wdog()