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iris/mips/nanonote/board.ccp
2009-10-04 19:47:20 +02:00

58 lines
1.8 KiB
COBOL

#pypp 0
// Iris: micro-kernel for a capability-based operating system.
// mips/nanonote/board.ccp: nanonote-specific definitions.
// Copyright 2009 Bas Wijnen <wijnen@debian.org>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
#define ARCH
#define INIT
#include "kernel.hh"
void board_init ():
pll_init ()
cpm_start_all ()
gpio_as_uart0 ()
gpio_as_sdram_16bit ()
gpio_as_nand ()
gpio_as_aic ()
gpio_as_lcd_16bit ()
gpio_as_msc ()
setup_sdram ()
// Set up keyboard: this breaks uart receive.
gpio_as_gpio (3, 0x05fc0000)
tcu_stop_counter (0)
tcu_select_extalclk (0)
tcu_select_clk_div4 (0)
tcu_disable_pwm_output (0)
tcu_set_full_data (0, JZ_EXTAL / HZ / 4)
tcu_mask_half_match_irq (0)
tcu_clear_full_match_flag (0)
tcu_unmask_full_match_irq (0)
tcu_start_counter (0)
// Set up uart.
UART0_IER = 0
UART0_FCR = 0
UART0_MCR = 0
UART0_SIRCR = 0
UART0_UMR = 0
UART0_UACR = 0
UART0_LCR = UARTLCR_WLEN_8 | UARTLCR_STOP1 | UARTLCR_DLAB
unsigned uart_div = 3000000 / 16 / 9600
UART0_DLHR = uart_div >> 8
UART0_DLLR = uart_div
UART0_LCR = UARTLCR_WLEN_8 | UARTLCR_STOP1
UART0_FCR = UARTFCR_UUE | UARTFCR_FE | UARTFCR_RFLS | UARTFCR_TFLS
dbg_log ("Serial port initialized\n")