diff options
Diffstat (limited to 'arch/arm/mach-msm/include/mach/uncompress.h')
| -rw-r--r-- | arch/arm/mach-msm/include/mach/uncompress.h | 39 |
1 files changed, 31 insertions, 8 deletions
diff --git a/arch/arm/mach-msm/include/mach/uncompress.h b/arch/arm/mach-msm/include/mach/uncompress.h index d94292c29d8..169a8400745 100644 --- a/arch/arm/mach-msm/include/mach/uncompress.h +++ b/arch/arm/mach-msm/include/mach/uncompress.h @@ -1,6 +1,6 @@ -/* arch/arm/mach-msm/include/mach/uncompress.h - * +/* * Copyright (C) 2007 Google, Inc. + * Copyright (c) 2011, Code Aurora Forum. All rights reserved. * * This software is licensed under the terms of the GNU General Public * License version 2, as published by the Free Software Foundation, and @@ -14,17 +14,40 @@ */ #ifndef __ASM_ARCH_MSM_UNCOMPRESS_H +#define __ASM_ARCH_MSM_UNCOMPRESS_H + +#include <asm/processor.h> +#include <mach/msm_iomap.h> + +#define UART_CSR (*(volatile uint32_t *)(MSM_DEBUG_UART_PHYS + 0x08)) +#define UART_TF (*(volatile uint32_t *)(MSM_DEBUG_UART_PHYS + 0x0c)) -#include "hardware.h" -#include "linux/io.h" -#include "mach/msm_iomap.h" +#define UART_DM_SR (*((volatile uint32_t *)(MSM_DEBUG_UART_PHYS + 0x08))) +#define UART_DM_CR (*((volatile uint32_t *)(MSM_DEBUG_UART_PHYS + 0x10))) +#define UART_DM_ISR (*((volatile uint32_t *)(MSM_DEBUG_UART_PHYS + 0x14))) +#define UART_DM_NCHAR (*((volatile uint32_t *)(MSM_DEBUG_UART_PHYS + 0x40))) +#define UART_DM_TF (*((volatile uint32_t *)(MSM_DEBUG_UART_PHYS + 0x70))) static void putc(int c) { #if defined(MSM_DEBUG_UART_PHYS) - unsigned base = MSM_DEBUG_UART_PHYS; - while (!(readl(base + 0x08) & 0x04)) ; - writel(c, base + 0x0c); +#ifdef CONFIG_MSM_HAS_DEBUG_UART_HS + /* + * Wait for TX_READY to be set; but skip it if we have a + * TX underrun. + */ + if (UART_DM_SR & 0x08) + while (!(UART_DM_ISR & 0x80)) + cpu_relax(); + + UART_DM_CR = 0x300; + UART_DM_NCHAR = 0x1; + UART_DM_TF = c; +#else + while (!(UART_CSR & 0x04)) + cpu_relax(); + UART_TF = c; +#endif #endif } |