From 0b4cccbec60678212eccdb42dc1e1c233ddf7092 Mon Sep 17 00:00:00 2001 From: Russell King Date: Sun, 7 Jul 2013 11:42:46 +0100 Subject: ARM: debug: add support for word accesses to debug/8250.S Add 32-bit word access support to debug/8250.S and convert Picoxcell and SoCFPGA to this. Signed-off-by: Russell King --- arch/arm/include/debug/8250.S | 24 +++++++++++++++++++++--- arch/arm/include/debug/8250_32.S | 27 --------------------------- arch/arm/include/debug/picoxcell.S | 19 ------------------- arch/arm/include/debug/socfpga.S | 21 --------------------- 4 files changed, 21 insertions(+), 70 deletions(-) delete mode 100644 arch/arm/include/debug/8250_32.S delete mode 100644 arch/arm/include/debug/picoxcell.S delete mode 100644 arch/arm/include/debug/socfpga.S (limited to 'arch/arm/include/debug') diff --git a/arch/arm/include/debug/8250.S b/arch/arm/include/debug/8250.S index 92cab395677a..7a2baf913aa0 100644 --- a/arch/arm/include/debug/8250.S +++ b/arch/arm/include/debug/8250.S @@ -14,14 +14,32 @@ ldr \rv, =CONFIG_DEBUG_UART_VIRT .endm +#ifdef CONFIG_DEBUG_UART_8250_WORD + .macro store, rd, rx:vararg + str \rd, \rx + .endm + + .macro load, rd, rx:vararg + ldr \rd, \rx + .endm +#else + .macro store, rd, rx:vararg + strb \rd, \rx + .endm + + .macro load, rd, rx:vararg + ldrb \rd, \rx + .endm +#endif + #define UART_SHIFT CONFIG_DEBUG_UART_8250_SHIFT .macro senduart,rd,rx - strb \rd, [\rx, #UART_TX << UART_SHIFT] + store \rd, [\rx, #UART_TX << UART_SHIFT] .endm .macro busyuart,rd,rx -1002: ldrb \rd, [\rx, #UART_LSR << UART_SHIFT] +1002: load \rd, [\rx, #UART_LSR << UART_SHIFT] and \rd, \rd, #UART_LSR_TEMT | UART_LSR_THRE teq \rd, #UART_LSR_TEMT | UART_LSR_THRE bne 1002b @@ -29,7 +47,7 @@ .macro waituart,rd,rx #ifdef CONFIG_DEBUG_UART_8250_FLOW_CONTROL -1001: ldrb \rd, [\rx, #UART_MSR << UART_SHIFT] +1001: load \rd, [\rx, #UART_MSR << UART_SHIFT] tst \rd, #UART_MSR_CTS beq 1001b #endif diff --git a/arch/arm/include/debug/8250_32.S b/arch/arm/include/debug/8250_32.S deleted file mode 100644 index 8db01eeabbb4..000000000000 --- a/arch/arm/include/debug/8250_32.S +++ /dev/null @@ -1,27 +0,0 @@ -/* - * Copyright (c) 2011 Picochip Ltd., Jamie Iles - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * Derived from arch/arm/mach-davinci/include/mach/debug-macro.S to use 32-bit - * accesses to the 8250. - */ - -#include - - .macro senduart,rd,rx - str \rd, [\rx, #UART_TX << UART_SHIFT] - .endm - - .macro busyuart,rd,rx -1002: ldr \rd, [\rx, #UART_LSR << UART_SHIFT] - and \rd, \rd, #UART_LSR_TEMT | UART_LSR_THRE - teq \rd, #UART_LSR_TEMT | UART_LSR_THRE - bne 1002b - .endm - - /* The UART's don't have any flow control IO's wired up. */ - .macro waituart,rd,rx - .endm diff --git a/arch/arm/include/debug/picoxcell.S b/arch/arm/include/debug/picoxcell.S deleted file mode 100644 index bc1f07c49cd4..000000000000 --- a/arch/arm/include/debug/picoxcell.S +++ /dev/null @@ -1,19 +0,0 @@ -/* - * Copyright (c) 2011 Picochip Ltd., Jamie Iles - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - */ - -#define UART_SHIFT 2 -#define PICOXCELL_UART1_BASE 0x80230000 -#define PHYS_TO_IO(x) (((x) & 0x00ffffff) | 0xfe000000) - - .macro addruart, rp, rv, tmp - ldr \rv, =PHYS_TO_IO(PICOXCELL_UART1_BASE) - ldr \rp, =PICOXCELL_UART1_BASE - .endm - -#include "8250_32.S" diff --git a/arch/arm/include/debug/socfpga.S b/arch/arm/include/debug/socfpga.S deleted file mode 100644 index 966b2f994946..000000000000 --- a/arch/arm/include/debug/socfpga.S +++ /dev/null @@ -1,21 +0,0 @@ -/* - * Copyright (C) 1994-1999 Russell King - * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#define UART_SHIFT 2 -#define DEBUG_LL_UART_OFFSET 0x00002000 - - .macro addruart, rp, rv, tmp - mov \rp, #DEBUG_LL_UART_OFFSET - orr \rp, \rp, #0x00c00000 - orr \rv, \rp, #0xfe000000 @ virtual base - orr \rp, \rp, #0xff000000 @ physical base - .endm - -#include "8250_32.S" - -- cgit