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| author | Mike Frysinger <vapier@gentoo.org> | 2011-04-29 23:23:28 -0400 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2011-07-12 02:17:45 -0400 |
| commit | 635f330fc7883a4cc703bc5ea2b90fc7d7f69e10 (patch) | |
| tree | 2895084758f361d1874be7d233fda4683381219d /arch/blackfin/cpu/initcode.c | |
| parent | 34a6d0b84a25a141123f589b0cfef2bf88afe220 (diff) | |
| download | u-boot-imx-635f330fc7883a4cc703bc5ea2b90fc7d7f69e10.zip u-boot-imx-635f330fc7883a4cc703bc5ea2b90fc7d7f69e10.tar.gz u-boot-imx-635f330fc7883a4cc703bc5ea2b90fc7d7f69e10.tar.bz2 | |
Blackfin: uart: add multiple serial support
This brings CONFIG_SERIAL_MULTI support to the Blackfin on-chip UARTs.
Ends up adding only ~512bytes per additional UART.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'arch/blackfin/cpu/initcode.c')
| -rw-r--r-- | arch/blackfin/cpu/initcode.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/arch/blackfin/cpu/initcode.c b/arch/blackfin/cpu/initcode.c index 750add0..61dc5ab 100644 --- a/arch/blackfin/cpu/initcode.c +++ b/arch/blackfin/cpu/initcode.c @@ -24,6 +24,8 @@ __attribute__((always_inline)) static inline void serial_init(void) { + uint32_t uart_base = UART_DLL; + #ifdef __ADSPBF54x__ # ifdef BFIN_BOOT_UART_USE_RTS # define BFIN_UART_USE_RTS 1 @@ -65,13 +67,13 @@ static inline void serial_init(void) if (BFIN_DEBUG_EARLY_SERIAL) { int ucen = bfin_read16(&pUART->gctl) & UCEN; - serial_early_init(); + serial_early_init(uart_base); /* If the UART is off, that means we need to program * the baud rate ourselves initially. */ if (ucen != UCEN) - serial_early_set_baud(CONFIG_BAUDRATE); + serial_early_set_baud(uart_base, CONFIG_BAUDRATE); } } @@ -79,6 +81,8 @@ __attribute__((always_inline)) static inline void serial_deinit(void) { #ifdef __ADSPBF54x__ + uint32_t uart_base = UART_DLL; + if (BFIN_UART_USE_RTS && CONFIG_BFIN_BOOT_MODE == BFIN_BOOT_UART) { /* clear forced RTS rather than relying on auto RTS */ bfin_write16(&pUART->mcr, bfin_read16(&pUART->mcr) & ~FCPOL); @@ -89,6 +93,8 @@ static inline void serial_deinit(void) __attribute__((always_inline)) static inline void serial_putc(char c) { + uint32_t uart_base = UART_DLL; + if (!BFIN_DEBUG_EARLY_SERIAL) return; @@ -519,7 +525,7 @@ update_serial_clocks(ADI_BOOT_DATA *bs, uint sdivB, uint divB, uint vcoB) unsigned int quotient; for (quotient = 0; dividend > 0; ++quotient) dividend -= divisor; - serial_early_put_div(quotient - ANOMALY_05000230); + serial_early_put_div(UART_DLL, quotient - ANOMALY_05000230); serial_putc('c'); } |