mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-30 15:03:18 +00:00
142 lines
3.3 KiB
C
142 lines
3.3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (C) 2016 David Lechner <david@lechnology.com>
|
|
*
|
|
* Based on da850evm.c
|
|
*
|
|
* Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
|
|
*
|
|
* Based on da830evm.c. Original Copyrights follow:
|
|
*
|
|
* Copyright (C) 2009 Nick Thompson, GE Fanuc, Ltd. <nick.thompson@gefanuc.com>
|
|
* Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <env.h>
|
|
#include <i2c.h>
|
|
#include <init.h>
|
|
#include <spi.h>
|
|
#include <spi_flash.h>
|
|
#include <asm/arch/hardware.h>
|
|
#include <asm/arch/pinmux_defs.h>
|
|
#include <asm/global_data.h>
|
|
#include <asm/io.h>
|
|
#include <asm/arch/davinci_misc.h>
|
|
#include <linux/errno.h>
|
|
#include <hwconfig.h>
|
|
#include <asm/mach-types.h>
|
|
#include <asm/setup.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
#define EEPROM_I2C_ADDR 0x50
|
|
#define EEPROM_REV_OFFSET 0x3F00
|
|
#define EEPROM_BDADDR_OFFSET 0x3F06
|
|
|
|
const struct pinmux_resource pinmuxes[] = {
|
|
PINMUX_ITEM(spi0_pins_base),
|
|
PINMUX_ITEM(spi0_pins_scs0),
|
|
PINMUX_ITEM(uart1_pins_txrx),
|
|
PINMUX_ITEM(i2c0_pins),
|
|
PINMUX_ITEM(mmc0_pins),
|
|
};
|
|
|
|
const int pinmuxes_size = ARRAY_SIZE(pinmuxes);
|
|
|
|
const struct lpsc_resource lpsc[] = {
|
|
{ DAVINCI_LPSC_SPI0 }, /* Serial Flash */
|
|
{ DAVINCI_LPSC_UART1 }, /* console */
|
|
{ DAVINCI_LPSC_MMC_SD },
|
|
};
|
|
|
|
const int lpsc_size = ARRAY_SIZE(lpsc);
|
|
|
|
/*
|
|
* The Bluetooth address serves as the board serial number.
|
|
*/
|
|
static void setup_serial_number(void)
|
|
{
|
|
u32 offset;
|
|
char serial_number[13];
|
|
u8 buf[6];
|
|
u8 eeprom_rev;
|
|
|
|
if (env_get("serial#"))
|
|
return;
|
|
|
|
if (i2c_read(EEPROM_I2C_ADDR, EEPROM_REV_OFFSET, 2, buf, 2)) {
|
|
printf("\nEEPROM revision read failed!\n");
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* EEPROM rev 3 has Bluetooth address at EEPROM_REV_OFFSET.
|
|
* Other revisions have checksum at EEPROM_REV_OFFSET+1
|
|
* to detect this.
|
|
*/
|
|
if ((buf[0] ^ buf[1]) == 0xFF)
|
|
eeprom_rev = buf[0];
|
|
else
|
|
eeprom_rev = 3;
|
|
|
|
/* EEPROM rev 3 has Bluetooth address where rev should be */
|
|
offset = (eeprom_rev == 3) ? EEPROM_REV_OFFSET : EEPROM_BDADDR_OFFSET;
|
|
|
|
if (i2c_read(EEPROM_I2C_ADDR, offset, 2, buf, 6)) {
|
|
printf("\nEEPROM serial read failed!\n");
|
|
return;
|
|
}
|
|
|
|
sprintf(serial_number, "%02X%02X%02X%02X%02X%02X",
|
|
buf[0], buf[1], buf[2], buf[3], buf[4], buf[5]);
|
|
|
|
env_set("serial#", serial_number);
|
|
}
|
|
|
|
int board_early_init_f(void)
|
|
{
|
|
/* enable the console UART */
|
|
writel((DAVINCI_UART_PWREMU_MGMT_FREE | DAVINCI_UART_PWREMU_MGMT_URRST |
|
|
DAVINCI_UART_PWREMU_MGMT_UTRST),
|
|
&davinci_uart1_ctrl_regs->pwremu_mgmt);
|
|
|
|
/*
|
|
* Power on required peripherals
|
|
* ARM does not have access by default to PSC0 and PSC1
|
|
* assuming here that the DSP bootloader has set the IOPU
|
|
* such that PSC access is available to ARM
|
|
*/
|
|
if (da8xx_configure_lpsc_items(lpsc, ARRAY_SIZE(lpsc)))
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int board_init(void)
|
|
{
|
|
irq_init();
|
|
|
|
/* address of boot parameters */
|
|
gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR;
|
|
|
|
/* setup the SUSPSRC for ARM to control emulation suspend */
|
|
writel(readl(&davinci_syscfg_regs->suspsrc) &
|
|
~(DAVINCI_SYSCFG_SUSPSRC_I2C |
|
|
DAVINCI_SYSCFG_SUSPSRC_SPI0 | DAVINCI_SYSCFG_SUSPSRC_TIMER0 |
|
|
DAVINCI_SYSCFG_SUSPSRC_UART1),
|
|
&davinci_syscfg_regs->suspsrc);
|
|
|
|
/* configure pinmux settings */
|
|
if (davinci_configure_pin_mux_items(pinmuxes, ARRAY_SIZE(pinmuxes)))
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int board_late_init(void)
|
|
{
|
|
setup_serial_number();
|
|
|
|
return 0;
|
|
}
|