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-rw-r--r--arch/arm/mach-tegra/include/mach/uncompress.h65
1 files changed, 4 insertions, 61 deletions
diff --git a/arch/arm/mach-tegra/include/mach/uncompress.h b/arch/arm/mach-tegra/include/mach/uncompress.h
index 27725750ca3e..485003f9b636 100644
--- a/arch/arm/mach-tegra/include/mach/uncompress.h
+++ b/arch/arm/mach-tegra/include/mach/uncompress.h
@@ -29,7 +29,6 @@
#include <linux/serial_reg.h>
#include "../../iomap.h"
-#include "../../irammap.h"
#define BIT(x) (1 << (x))
#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
@@ -52,17 +51,6 @@ static inline void flush(void)
{
}
-static inline void save_uart_address(void)
-{
- u32 *buf = (u32 *)(TEGRA_IRAM_BASE + TEGRA_IRAM_DEBUG_UART_OFFSET);
-
- if (uart) {
- buf[0] = TEGRA_IRAM_DEBUG_UART_COOKIE;
- buf[1] = (u32)uart;
- } else
- buf[0] = 0;
-}
-
static const struct {
u32 base;
u32 reset_reg;
@@ -139,51 +127,19 @@ int auto_odmdata(void)
}
#endif
-#ifdef CONFIG_TEGRA_DEBUG_UART_AUTO_SCRATCH
-int auto_scratch(void)
-{
- int i;
-
- /*
- * Look for the first UART that:
- * a) Is not in reset.
- * b) Is clocked.
- * c) Has a 'D' in the scratchpad register.
- *
- * Note that on Tegra30, the first two conditions are required, since
- * if not true, accesses to the UART scratch register will hang.
- * Tegra20 doesn't have this issue.
- *
- * The intent is that the bootloader will tell the kernel which UART
- * to use by setting up those conditions. If nothing found, we'll fall
- * back to what's specified in TEGRA_DEBUG_UART_BASE.
- */
- for (i = 0; i < ARRAY_SIZE(uarts); i++) {
- if (!uart_clocked(i))
- continue;
-
- uart = (volatile u8 *)uarts[i].base;
- if (uart[UART_SCR << DEBUG_UART_SHIFT] != 'D')
- continue;
-
- return i;
- }
-
- return -1;
-}
-#endif
-
/*
* Setup before decompression. This is where we do UART selection for
* earlyprintk and init the uart_base register.
*/
static inline void arch_decomp_setup(void)
{
- int uart_id, auto_uart_id;
+ int uart_id;
volatile u32 *apb_misc = (volatile u32 *)TEGRA_APB_MISC_BASE;
u32 chip, div;
-#if defined(CONFIG_TEGRA_DEBUG_UARTA)
+#if defined(CONFIG_TEGRA_DEBUG_UART_AUTO_ODMDATA)
+ uart_id = auto_odmdata();
+#elif defined(CONFIG_TEGRA_DEBUG_UARTA)
uart_id = 0;
#elif defined(CONFIG_TEGRA_DEBUG_UARTB)
uart_id = 1;
@@ -193,19 +149,7 @@ static inline void arch_decomp_setup(void)
uart_id = 3;
#elif defined(CONFIG_TEGRA_DEBUG_UARTE)
uart_id = 4;
-#else
- uart_id = -1;
-#endif
-
-#if defined(CONFIG_TEGRA_DEBUG_UART_AUTO_ODMDATA)
- auto_uart_id = auto_odmdata();
-#elif defined(CONFIG_TEGRA_DEBUG_UART_AUTO_SCRATCH)
- auto_uart_id = auto_scratch();
-#else
- auto_uart_id = -1;
#endif
- if (auto_uart_id != -1)
- uart_id = auto_uart_id;
if (uart_id < 0 || uart_id >= ARRAY_SIZE(uarts) ||
!uart_clocked(uart_id))
@@ -213,7 +157,6 @@ static inline void arch_decomp_setup(void)
else
uart = (volatile u8 *)uarts[uart_id].base;
- save_uart_address();
if (uart == NULL)
return;