add driver 5G

hc

2024-01-31 f9004dbfff8a3fbbd7e2a88c8a4327c7f2f8e5b2

 kernel/arch/arm/include/debug/tegra.S
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@@ -1,3 +1,4 @@
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+/* SPDX-License-Identifier: GPL-2.0-only */
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 /*
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  * Copyright (C) 2010,2011 Google, Inc.
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  * Copyright (C) 2011-2012 NVIDIA CORPORATION. All Rights Reserved.
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@@ -10,16 +11,6 @@
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  *
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  * Portions based on mach-omap2's debug-macro.S
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  * Copyright (C) 1994-1999 Russell King
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- *
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- * This software is licensed under the terms of the GNU General Public
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- * License version 2, as published by the Free Software Foundation, and
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- * may be copied, distributed, and modified under those terms.
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- * GNU General Public License for more details.
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- *
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  */
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15
 
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 #include <linux/serial_reg.h>
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@@ -158,7 +149,34 @@
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149
 
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 		.align
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 99:		.word	.
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+#if defined(ZIMAGE)
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+		.word	. + 4
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+/*
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+ * Storage for the state maintained by the macro.
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+ *
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+ * In the kernel proper, this data is located in arch/arm/mach-tegra/tegra.c.
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+ * That's because this header is included from multiple files, and we only
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+ * want a single copy of the data. In particular, the UART probing code above
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+ * assumes it's running using physical addresses. This is true when this file
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+ * is included from head.o, but not when included from debug.o. So we need
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+ * to share the probe results between the two copies, rather than having
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+ * to re-run the probing again later.
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+ *
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+ * In the decompressor, we put the storage right here, since common.c
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+ * isn't included in the decompressor build. This storage data gets put in
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+ * .text even though it's really data, since .data is discarded from the
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+ * decompressor. Luckily, .text is writeable in the decompressor, unless
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+ * CONFIG_ZBOOT_ROM. That dependency is handled in arch/arm/Kconfig.debug.
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+ */
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+		/* Debug UART initialization required */
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+		.word	1
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+		/* Debug UART physical address */
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+		.word	0
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+		/* Debug UART virtual address */
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+		.word	0
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+#else
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 		.word	tegra_uart_config
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+#endif
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 		.ltorg
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 		/* Load previously selected UART address */
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@@ -173,7 +191,7 @@
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191
 
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 		.macro	senduart, rd, rx
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 		cmp	\rx, #0
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-		strneb	\rd, [\rx, #UART_TX << UART_SHIFT]
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+		strbne	\rd, [\rx, #UART_TX << UART_SHIFT]
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 1001:
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 		.endm
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@@ -187,40 +205,14 @@
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 1002:
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 		.endm
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-		.macro	waituart, rd, rx
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-#ifdef FLOW_CONTROL
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+		.macro	waituartcts, rd, rx
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 		cmp	\rx, #0
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 		beq	1002f
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 1001:		ldrb	\rd, [\rx, #UART_MSR << UART_SHIFT]
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 		tst	\rd, #UART_MSR_CTS
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 		beq	1001b
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 1002:
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-#endif
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 		.endm
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-/*
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- * Storage for the state maintained by the macros above.
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- *
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- * In the kernel proper, this data is located in arch/arm/mach-tegra/tegra.c.
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- * That's because this header is included from multiple files, and we only
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- * want a single copy of the data. In particular, the UART probing code above
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- * assumes it's running using physical addresses. This is true when this file
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- * is included from head.o, but not when included from debug.o. So we need
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- * to share the probe results between the two copies, rather than having
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- * to re-run the probing again later.
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- *
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- * In the decompressor, we put the symbol/storage right here, since common.c
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- * isn't included in the decompressor build. This symbol gets put in .text
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- * even though it's really data, since .data is discarded from the
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- * decompressor. Luckily, .text is writeable in the decompressor, unless
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- * CONFIG_ZBOOT_ROM. That dependency is handled in arch/arm/Kconfig.debug.
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- */
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-#if defined(ZIMAGE)
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-tegra_uart_config:
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-	/* Debug UART initialization required */
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-	.word 1
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-	/* Debug UART physical address */
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-	.word 0
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-	/* Debug UART virtual address */
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-	.word 0
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-#endif
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+		.macro	waituarttxrdy,rd,rx
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+		.endm