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| author | TsiChung Liew <tsicliew@gmail.com> | 2010-03-09 19:17:52 -0600 |
|---|---|---|
| committer | TsiChung Liew <tsicliew@gmail.com> | 2010-03-24 11:09:05 -0500 |
| commit | 52affe04fa5493597d8a5f6202507190950a32e6 (patch) | |
| tree | 257449a1a8179215731e313e5744ed8830767628 /cpu/mcf52x2 | |
| parent | d04c1efae3d834db6e21e9976e338bf1e588e987 (diff) | |
| download | u-boot-imx-52affe04fa5493597d8a5f6202507190950a32e6.zip u-boot-imx-52affe04fa5493597d8a5f6202507190950a32e6.tar.gz u-boot-imx-52affe04fa5493597d8a5f6202507190950a32e6.tar.bz2 | |
ColdFire: Update processors' serial port configuration
Provide parameter passing to uart_port_config(). Update port
configuration - un-mask it before enable the bits.
Signed-off-by: TsiChung Liew <tsicliew@gmail.com>
Diffstat (limited to 'cpu/mcf52x2')
| -rw-r--r-- | cpu/mcf52x2/cpu_init.c | 61 |
1 files changed, 33 insertions, 28 deletions
diff --git a/cpu/mcf52x2/cpu_init.c b/cpu/mcf52x2/cpu_init.c index 747c1cf..170bbfc 100644 --- a/cpu/mcf52x2/cpu_init.c +++ b/cpu/mcf52x2/cpu_init.c @@ -135,12 +135,12 @@ int cpu_init_r(void) return (0); } -void uart_port_conf(void) +void uart_port_conf(int port) { volatile gpio_t *gpio = (gpio_t *) MMAP_GPIO; /* Setup Ports: */ - switch (CONFIG_SYS_UART_PORT) { + switch (port) { case 0: gpio->par_uart &= GPIO_PAR_UART0_UNMASK; gpio->par_uart |= (GPIO_PAR_UART_U0TXD | GPIO_PAR_UART_U0RXD); @@ -247,15 +247,19 @@ int cpu_init_r(void) return (0); } -void uart_port_conf(void) +void uart_port_conf(int port) { + volatile u32 *par = (u32 *) MMAP_PAR; + /* Setup Ports: */ - switch (CONFIG_SYS_UART_PORT) { - case 0: - break; + switch (port) { case 1: + *par &= 0xFFE7FFFF; + *par |= 0x00180000; break; case 2: + *par &= 0xFFFFFFFC; + *par &= 0x00000003; break; } } @@ -291,21 +295,26 @@ int cpu_init_r(void) return (0); } -void uart_port_conf(void) +void uart_port_conf(int port) { + u16 temp; + /* Setup Ports: */ - switch (CONFIG_SYS_UART_PORT) { + switch (port) { case 0: - mbar_writeShort(MCF_GPIO_PAR_UART, MCF_GPIO_PAR_UART_U0TXD | - MCF_GPIO_PAR_UART_U0RXD); + temp = mbar_readShort(MCF_GPIO_PAR_UART) & 0xFFF3; + temp |= (MCF_GPIO_PAR_UART_U0TXD | MCF_GPIO_PAR_UART_U0RXD); + mbar_writeShort(MCF_GPIO_PAR_UART, temp); break; case 1: - mbar_writeShort(MCF_GPIO_PAR_UART, - MCF_GPIO_PAR_UART_U1RXD_UART1 | - MCF_GPIO_PAR_UART_U1TXD_UART1); + temp = mbar_readShort(MCF_GPIO_PAR_UART) & 0xF0FF; + temp |= (MCF_GPIO_PAR_UART_U1RXD_UART1 | MCF_GPIO_PAR_UART_U1TXD_UART1); + mbar_writeShort(MCF_GPIO_PAR_UART, temp); break; case 2: - mbar_writeShort(MCF_GPIO_PAR_UART, 0x3000); + temp = mbar_readShort(MCF_GPIO_PAR_UART) & 0xCFFF; + temp |= (0x3000); + mbar_writeShort(MCF_GPIO_PAR_UART, temp); break; } } @@ -409,12 +418,12 @@ int cpu_init_r(void) return (0); } -void uart_port_conf(void) +void uart_port_conf(int port) { volatile gpio_t *gpio = (gpio_t *) MMAP_GPIO; /* Setup Ports: */ - switch (CONFIG_SYS_UART_PORT) { + switch (port) { case 0: gpio->gpio_pbcnt &= ~(GPIO_PBCNT_PB0MSK | GPIO_PBCNT_PB1MSK); gpio->gpio_pbcnt |= (GPIO_PBCNT_URT0_TXD | GPIO_PBCNT_URT0_RXD); @@ -487,19 +496,22 @@ int cpu_init_r(void) return (0); } -void uart_port_conf(void) +void uart_port_conf(int port) { volatile gpio_t *gpio = (gpio_t *) MMAP_GPIO; /* Setup Ports: */ - switch (CONFIG_SYS_UART_PORT) { + switch (port) { case 0: + gpio->par_uart &= ~UART0_ENABLE_MASK; gpio->par_uart |= UART0_ENABLE_MASK; break; case 1: + gpio->par_uart &= ~UART1_ENABLE_MASK; gpio->par_uart |= UART1_ENABLE_MASK; break; case 2: + gpio->par_uart &= ~UART2_ENABLE_MASK; gpio->par_uart |= UART2_ENABLE_MASK; break; } @@ -621,10 +633,10 @@ int cpu_init_r(void) return (0); } -void uart_port_conf(void) +void uart_port_conf(int port) { /* Setup Ports: */ - switch (CONFIG_SYS_UART_PORT) { + switch (port) { case 0: MCFGPIO_PUAPAR &= 0xFc; MCFGPIO_PUAPAR |= 0x03; @@ -729,14 +741,7 @@ int cpu_init_r(void) return (0); } -void uart_port_conf(void) +void uart_port_conf(int port) { - /* Setup Ports: */ - switch (CONFIG_SYS_UART_PORT) { - case 0: - break; - case 1: - break; - } } #endif /* #if defined(CONFIG_M5249) */ |