diff options
| author | Gabe Black <gabeblack@chromium.org> | 2013-06-29 23:20:14 -0700 |
|---|---|---|
| committer | Ronald G. Minnich <rminnich@gmail.com> | 2013-07-01 21:31:46 +0200 |
| commit | 595ab4f955c98ee486cde7adc1af4eb56cebe569 (patch) | |
| tree | b4bd4fa3c71ecb2bd676d45b76c881aa1a52d377 | |
| parent | 94f631cdc9805d61071c29d25a0af9ddea174c22 (diff) | |
beaglebone: Enable the clocks and pins for the configured UART.
Set up the pinmux to enable the pins and the clocks for whichever UART is
currently configured.
Change-Id: Iac13f16d9d84320555b99734ea83eafd0a2803fe
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3573
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
| -rw-r--r-- | src/mainboard/ti/beaglebone/bootblock.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/mainboard/ti/beaglebone/bootblock.c b/src/mainboard/ti/beaglebone/bootblock.c index fbe73eac31..6c7d132500 100644 --- a/src/mainboard/ti/beaglebone/bootblock.c +++ b/src/mainboard/ti/beaglebone/bootblock.c @@ -21,10 +21,13 @@ #include <types.h> #include <uart.h> #include <console/console.h> +#include <cpu/ti/am335x/pinmux.h> void bootblock_mainboard_init(void); void bootblock_mainboard_init(void) { + void *uart_clock_ctrl = NULL; + /* Enable the GPIO module */ writel((0x2 << 0) | (1 << 18), (uint32_t *)(0x44e00000 + 0xac)); @@ -38,6 +41,29 @@ void bootblock_mainboard_init(void) clrbits_le32((uint32_t *)(0x4804c000 + 0x13c), 0xf << 21); setbits_le32((uint32_t *)(0x4804c000 + 0x13c), 0x5 << 21); + /* Set up the UART we're going to use */ + if (CONFIG_CONSOLE_SERIAL_UART0) { + am335x_pinmux_uart0(); + uart_clock_ctrl = (void *)(uintptr_t)(0x44e00400 + 0xb4); + } else if (CONFIG_CONSOLE_SERIAL_UART1) { + am335x_pinmux_uart1(); + uart_clock_ctrl = (void *)(uintptr_t)(0x44e00000 + 0x6c); + } else if (CONFIG_CONSOLE_SERIAL_UART2) { + am335x_pinmux_uart2(); + uart_clock_ctrl = (void *)(uintptr_t)(0x44e00000 + 0x70); + } else if (CONFIG_CONSOLE_SERIAL_UART3) { + am335x_pinmux_uart3(); + uart_clock_ctrl = (void *)(uintptr_t)(0x44e00000 + 0x74); + } else if (CONFIG_CONSOLE_SERIAL_UART4) { + am335x_pinmux_uart4(); + uart_clock_ctrl = (void *)(uintptr_t)(0x44e00000 + 0x78); + } else if (CONFIG_CONSOLE_SERIAL_UART5) { + am335x_pinmux_uart5(); + uart_clock_ctrl = (void *)(uintptr_t)(0x44e00000 + 0x38); + } + if (uart_clock_ctrl) + writel(0x2, uart_clock_ctrl); + /* Start monotonic timer */ //rtc_start(); |