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authorAnton Arapov <anton@redhat.com>2012-04-16 10:05:28 +0200
committerAnton Arapov <anton@redhat.com>2012-04-16 10:05:28 +0200
commitb4b6116a13633898cf868f2f103c96a90c4c20f8 (patch)
tree93d1b7e2cfcdf473d8d4ff3ad141fa864f8491f6 /arch/arm/mach-davinci/include/mach/uncompress.h
parentedd4be777c953e5faafc80d091d3084b4343f5d3 (diff)
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fedora kernel: d9aad82f3319f3cfd1aebc01234254ef0c37ad84v3.3.2-1
Signed-off-by: Anton Arapov <anton@redhat.com>
Diffstat (limited to 'arch/arm/mach-davinci/include/mach/uncompress.h')
-rw-r--r--arch/arm/mach-davinci/include/mach/uncompress.h106
1 files changed, 106 insertions, 0 deletions
diff --git a/arch/arm/mach-davinci/include/mach/uncompress.h b/arch/arm/mach-davinci/include/mach/uncompress.h
new file mode 100644
index 00000000000..9dc7cf9664f
--- /dev/null
+++ b/arch/arm/mach-davinci/include/mach/uncompress.h
@@ -0,0 +1,106 @@
+/*
+ * Serial port stubs for kernel decompress status messages
+ *
+ * Initially based on:
+ * arch/arm/plat-omap/include/mach/uncompress.h
+ *
+ * Original copyrights follow.
+ *
+ * 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 <linux/types.h>
+#include <linux/serial_reg.h>
+
+#include <asm/mach-types.h>
+
+#include <mach/serial.h>
+
+u32 *uart;
+
+/* PORT_16C550A, in polled non-fifo mode */
+static void putc(char c)
+{
+ while (!(uart[UART_LSR] & UART_LSR_THRE))
+ barrier();
+ uart[UART_TX] = c;
+}
+
+static inline void flush(void)
+{
+ while (!(uart[UART_LSR] & UART_LSR_THRE))
+ barrier();
+}
+
+static inline void set_uart_info(u32 phys, void * __iomem virt)
+{
+ /*
+ * Get address of some.bss variable and round it down
+ * a la CONFIG_AUTO_ZRELADDR.
+ */
+ u32 ram_start = (u32)&uart & 0xf8000000;
+ u32 *uart_info = (u32 *)(ram_start + DAVINCI_UART_INFO_OFS);
+
+ uart = (u32 *)phys;
+ uart_info[0] = phys;
+ uart_info[1] = (u32)virt;
+}
+
+#define _DEBUG_LL_ENTRY(machine, phys, virt) \
+ if (machine_is_##machine()) { \
+ set_uart_info(phys, virt); \
+ break; \
+ }
+
+#define DEBUG_LL_DAVINCI(machine, port) \
+ _DEBUG_LL_ENTRY(machine, DAVINCI_UART##port##_BASE, \
+ IO_ADDRESS(DAVINCI_UART##port##_BASE))
+
+#define DEBUG_LL_DA8XX(machine, port) \
+ _DEBUG_LL_ENTRY(machine, DA8XX_UART##port##_BASE, \
+ IO_ADDRESS(DA8XX_UART##port##_BASE))
+
+#define DEBUG_LL_TNETV107X(machine, port) \
+ _DEBUG_LL_ENTRY(machine, TNETV107X_UART##port##_BASE, \
+ TNETV107X_UART##port##_VIRT)
+
+static inline void __arch_decomp_setup(unsigned long arch_id)
+{
+ /*
+ * 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 {
+ /* Davinci boards */
+ DEBUG_LL_DAVINCI(davinci_evm, 0);
+ DEBUG_LL_DAVINCI(sffsdr, 0);
+ DEBUG_LL_DAVINCI(neuros_osd2, 0);
+ DEBUG_LL_DAVINCI(davinci_dm355_evm, 0);
+ DEBUG_LL_DAVINCI(dm355_leopard, 0);
+ DEBUG_LL_DAVINCI(davinci_dm6467_evm, 0);
+ DEBUG_LL_DAVINCI(davinci_dm365_evm, 0);
+
+ /* DA8xx boards */
+ DEBUG_LL_DA8XX(davinci_da830_evm, 2);
+ DEBUG_LL_DA8XX(davinci_da850_evm, 2);
+ DEBUG_LL_DA8XX(mityomapl138, 1);
+ DEBUG_LL_DA8XX(omapl138_hawkboard, 2);
+
+ /* TNETV107x boards */
+ DEBUG_LL_TNETV107X(tnetv107x, 1);
+ } while (0);
+}
+
+#define arch_decomp_setup() __arch_decomp_setup(arch_id)
+#define arch_decomp_wdog()