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-rw-r--r--arch/arm/include/debug/msm.S93
1 files changed, 93 insertions, 0 deletions
diff --git a/arch/arm/include/debug/msm.S b/arch/arm/include/debug/msm.S
new file mode 100644
index 000000000000..9166e1bc470e
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+++ b/arch/arm/include/debug/msm.S
@@ -0,0 +1,93 @@
+/*
+ *
+ * Copyright (C) 2007 Google, Inc.
+ * Copyright (c) 2011, Code Aurora Forum. All rights reserved.
+ * Author: Brian Swetland <swetland@google.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#if defined(CONFIG_ARCH_MSM7X00A) || defined(CONFIG_ARCH_QSD8X50)
+#define MSM_UART1_PHYS 0xA9A00000
+#define MSM_UART2_PHYS 0xA9B00000
+#define MSM_UART3_PHYS 0xA9C00000
+#elif defined(CONFIG_ARCH_MSM7X30)
+#define MSM_UART1_PHYS 0xACA00000
+#define MSM_UART2_PHYS 0xACB00000
+#define MSM_UART3_PHYS 0xACC00000
+#endif
+
+#if defined(CONFIG_DEBUG_MSM_UART1)
+#define MSM_DEBUG_UART_BASE 0xE1000000
+#define MSM_DEBUG_UART_PHYS MSM_UART1_PHYS
+#elif defined(CONFIG_DEBUG_MSM_UART2)
+#define MSM_DEBUG_UART_BASE 0xE1000000
+#define MSM_DEBUG_UART_PHYS MSM_UART2_PHYS
+#elif defined(CONFIG_DEBUG_MSM_UART3)
+#define MSM_DEBUG_UART_BASE 0xE1000000
+#define MSM_DEBUG_UART_PHYS MSM_UART3_PHYS
+#endif
+
+#ifdef CONFIG_DEBUG_MSM8660_UART
+#define MSM_DEBUG_UART_BASE 0xF0040000
+#define MSM_DEBUG_UART_PHYS 0x19C40000
+#endif
+
+#ifdef CONFIG_DEBUG_MSM8960_UART
+#define MSM_DEBUG_UART_BASE 0xF0040000
+#define MSM_DEBUG_UART_PHYS 0x16440000
+#endif
+
+ .macro addruart, rp, rv, tmp
+#ifdef MSM_DEBUG_UART_PHYS
+ ldr \rp, =MSM_DEBUG_UART_PHYS
+ ldr \rv, =MSM_DEBUG_UART_BASE
+#endif
+ .endm
+
+ .macro senduart, rd, rx
+#ifdef CONFIG_MSM_HAS_DEBUG_UART_HS
+ @ Write the 1 character to UARTDM_TF
+ str \rd, [\rx, #0x70]
+#else
+ str \rd, [\rx, #0x0C]
+#endif
+ .endm
+
+ .macro waituart, rd, rx
+#ifdef CONFIG_MSM_HAS_DEBUG_UART_HS
+ @ check for TX_EMT in UARTDM_SR
+ ldr \rd, [\rx, #0x08]
+ tst \rd, #0x08
+ bne 1002f
+ @ wait for TXREADY in UARTDM_ISR
+1001: ldr \rd, [\rx, #0x14]
+ tst \rd, #0x80
+ beq 1001b
+1002:
+ @ Clear TX_READY by writing to the UARTDM_CR register
+ mov \rd, #0x300
+ str \rd, [\rx, #0x10]
+ @ Write 0x1 to NCF register
+ mov \rd, #0x1
+ str \rd, [\rx, #0x40]
+ @ UARTDM reg. Read to induce delay
+ ldr \rd, [\rx, #0x08]
+#else
+ @ wait for TX_READY
+1001: ldr \rd, [\rx, #0x08]
+ tst \rd, #0x04
+ beq 1001b
+#endif
+ .endm
+
+ .macro busyuart, rd, rx
+ .endm