148 lines
4.0 KiB
C
148 lines
4.0 KiB
C
/* Initialization for the Compal E99 (Motorola C155) */
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/* (C) 2010 by Harald Welte <laforge@gnumonks.org>
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* (C) 2010 by Steve Markgraf <steve@steve-m.de>
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*
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* All Rights Reserved
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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*/
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#include <stdint.h>
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#include <stdio.h>
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#include <debug.h>
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#include <ctors.h>
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#include <memory.h>
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#include <board.h>
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#include <keypad.h>
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#include <console.h>
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#include <flash/cfi_flash.h>
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#include <calypso/irq.h>
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#include <calypso/clock.h>
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#include <calypso/dma.h>
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#include <calypso/rtc.h>
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#include <calypso/timer.h>
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#include <uart.h>
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#include <calypso/backlight.h>
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#include <comm/sercomm.h>
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#include <comm/timer.h>
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#include <abb/twl3025.h>
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#include <rf/trf6151.h>
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#include <fb/framebuffer.h>
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#include "../compal/keymap.h"
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#define ARMIO_LATCH_OUT 0xfffe4802
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#define IO_CNTL_REG 0xfffe4804
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#define ASIC_CONF_REG 0xfffef008
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static void board_io_init(void)
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{
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uint16_t reg;
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reg = readw(ASIC_CONF_REG);
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/* LCD Set I/O(3) / SA0 to I/O(3) mode */
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reg &= ~( (1 << 12) | (1 << 10) | (1 << 7) | (1 << 1)) ;
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/* don't set function pins to I2C Mode, C155 uses UWire */
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/* TWL3025: Set SPI+RIF RX clock to rising edge */
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reg |= (1 << 13) | (1 << 14);
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writew(reg, ASIC_CONF_REG);
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/* LCD Set I/O(3) to output mode and enable C155 backlight (IO1) */
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/* FIXME: Put the display backlight control to backlight.c */
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reg = readw(IO_CNTL_REG);
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reg &= ~( (1 << 3) | (1 << 1));
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writew(reg, IO_CNTL_REG);
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/* LCD Set I/O(3) output low */
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reg = readw(ARMIO_LATCH_OUT);
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reg &= ~(1 << 3);
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reg |= (1 << 1);
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writew(reg, ARMIO_LATCH_OUT);
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}
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void board_init(int with_irq)
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{
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/* Disable watchdog (compal loader leaves it enabled) */
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wdog_enable(0);
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/* Configure memory interface */
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calypso_mem_cfg(CALYPSO_nCS0, 3, CALYPSO_MEM_16bit, 1);
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calypso_mem_cfg(CALYPSO_nCS1, 3, CALYPSO_MEM_16bit, 1);
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calypso_mem_cfg(CALYPSO_nCS2, 5, CALYPSO_MEM_16bit, 1);
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calypso_mem_cfg(CALYPSO_nCS3, 5, CALYPSO_MEM_16bit, 1);
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calypso_mem_cfg(CALYPSO_CS4, 0, CALYPSO_MEM_8bit, 1);
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calypso_mem_cfg(CALYPSO_nCS6, 0, CALYPSO_MEM_32bit, 1);
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calypso_mem_cfg(CALYPSO_nCS7, 0, CALYPSO_MEM_32bit, 0);
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/* Set VTCXO_DIV2 = 1, configure PLL for 104 MHz and give ARM half of that */
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calypso_clock_set(2, CALYPSO_PLL13_104_MHZ, ARM_MCLK_DIV_2);
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/* Configure the RHEA bridge with some sane default values */
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calypso_rhea_cfg(0, 0, 0xff, 0, 1, 0, 0);
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/* Initialize board-specific GPIO */
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board_io_init();
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/* Enable bootrom mapping to route exception vectors to RAM */
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calypso_bootrom(with_irq);
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calypso_exceptions_install();
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/* Initialize interrupt controller */
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if (with_irq)
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irq_init();
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sercomm_bind_uart(UART_MODEM);
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cons_bind_uart(UART_IRDA);
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/* initialize MODEM UART to be used for sercomm */
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uart_init(UART_MODEM, with_irq);
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uart_baudrate(UART_MODEM, UART_460800);
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/* initialize IRDA UART to be used for old-school console code.
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* note: IRDA uart only accessible on C115 and C117 PCB */
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uart_init(UART_IRDA, with_irq);
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uart_baudrate(UART_IRDA, UART_115200);
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/* Initialize hardware timers */
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hwtimer_init();
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/* Initialize DMA controller */
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dma_init();
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/* Initialize real time clock */
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rtc_init();
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/* Initialize system timers (uses hwtimer 2) */
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timer_init();
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/* Initialize LCD driver (uses UWire) and backlight */
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bl_mode_pwl(0);
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//bl_level(50);
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fb_init();
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/* Initialize keypad driver */
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keypad_init(keymap, with_irq);
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/* Initialize ABB driver (uses SPI) */
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twl3025_init();
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}
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