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-rw-r--r--arch/blackfin/cpu/initcode.c2
-rw-r--r--arch/blackfin/cpu/serial.h17
-rw-r--r--arch/blackfin/cpu/serial1.h5
-rw-r--r--arch/blackfin/include/asm/clock.h6
4 files changed, 27 insertions, 3 deletions
diff --git a/arch/blackfin/cpu/initcode.c b/arch/blackfin/cpu/initcode.c
index 5c12726..4b10b6c 100644
--- a/arch/blackfin/cpu/initcode.c
+++ b/arch/blackfin/cpu/initcode.c
@@ -193,10 +193,12 @@ static inline void serial_init(void)
}
#endif
+#if CONFIG_BFIN_BOOT_MODE != BFIN_BOOT_BYPASS
if (BFIN_DEBUG_EARLY_SERIAL) {
serial_early_init(uart_base);
serial_early_set_baud(uart_base, CONFIG_BAUDRATE);
}
+#endif
}
__attribute__((always_inline))
diff --git a/arch/blackfin/cpu/serial.h b/arch/blackfin/cpu/serial.h
index 9200339..d67fd81 100644
--- a/arch/blackfin/cpu/serial.h
+++ b/arch/blackfin/cpu/serial.h
@@ -78,19 +78,31 @@ static inline void serial_early_puts(const char *s)
#else
.macro serial_early_init
-#ifdef CONFIG_DEBUG_EARLY_SERIAL
+#if defined(CONFIG_DEBUG_EARLY_SERIAL) && defined(BFIN_BOOT_BYPASS)
call _serial_initialize;
#endif
.endm
.macro serial_early_set_baud
-#ifdef CONFIG_DEBUG_EARLY_SERIAL
+#if defined(CONFIG_DEBUG_EARLY_SERIAL) && defined(BFIN_BOOT_BYPASS)
R0.L = LO(CONFIG_BAUDRATE);
R0.H = HI(CONFIG_BAUDRATE);
call _serial_set_baud;
#endif
.endm
+#if CONFIG_BFIN_BOOT_MODE == BFIN_BOOT_BYPASS
+#define update_serial_early_string_addr \
+ R1.L = _start; \
+ R1.H = _start; \
+ R0 = R0 - R1; \
+ R1.L = 0; \
+ R1.H = 0x2000; \
+ R0 = R0 + R1;
+#else
+#define update_serial_early_string_addr
+#endif
+
/* Since we embed the string right into our .text section, we need
* to find its address. We do this by getting our PC and adding 2
* bytes (which is the length of the jump instruction). Then we
@@ -108,6 +120,7 @@ static inline void serial_early_puts(const char *s)
.previous; \
R0.L = 7b; \
R0.H = 7b; \
+ update_serial_early_string_addr \
call _serial_puts;
#else
# define serial_early_puts(str)
diff --git a/arch/blackfin/cpu/serial1.h b/arch/blackfin/cpu/serial1.h
index 52f1c62..467d381 100644
--- a/arch/blackfin/cpu/serial1.h
+++ b/arch/blackfin/cpu/serial1.h
@@ -287,8 +287,13 @@ static inline void serial_early_set_baud(uint32_t uart_base, uint32_t baud)
* weird multiplication is to make sure we over sample just
* a little rather than under sample the incoming signals.
*/
+#if CONFIG_BFIN_BOOT_MODE == BFIN_BOOT_BYPASS
+ uint16_t divisor = (early_get_uart_clk() + baud * 8) / (baud * 16)
+ - ANOMALY_05000230;
+#else
uint16_t divisor = early_division(early_get_uart_clk() + (baud * 8),
baud * 16) - ANOMALY_05000230;
+#endif
serial_set_divisor(uart_base, divisor);
}
diff --git a/arch/blackfin/include/asm/clock.h b/arch/blackfin/include/asm/clock.h
index df6cd68..f1fcd40 100644
--- a/arch/blackfin/include/asm/clock.h
+++ b/arch/blackfin/include/asm/clock.h
@@ -10,7 +10,7 @@
#include <asm/blackfin.h>
#ifdef PLL_CTL
#include <asm/mach-common/bits/pll.h>
-# define pll_is_bypassed() (bfin_read_PLL_STAT() & DF)
+# define pll_is_bypassed() (bfin_read_PLL_CTL() & BYPASS)
#else
#include <asm/mach-common/bits/cgu.h>
# define pll_is_bypassed() (bfin_read_CGU_STAT() & PLLBP)
@@ -55,7 +55,11 @@ static inline uint32_t early_get_uart_clk(void)
if (!pll_is_bypassed()) {
div = bfin_read_PLL_DIV();
ssel = (div & SSEL) >> SSEL_P;
+#if CONFIG_BFIN_BOOT_MODE == BFIN_BOOT_BYPASS
+ sclk = vco/ssel;
+#else
sclk = early_division(vco, ssel);
+#endif
}
uclk = sclk;
#ifdef CGU_DIV