mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-02 16:23:46 +09:00
3d248d37e1
The current da850evm support in u-boot/master omits any use of the davinci EMAC. This patch adds basic support for the EMAC using the MII PHY found on the baseboard of the EVM. The MAC address is read from the environment variable 'ethadd'. Note that this is different from the da850evm support in the u-boot omapl1 tree where the MAC address is read from SPI flash. Signed-off-by: Ben Gardiner <bengardiner@nanometrics.ca> CC: Sandeep Paulraj <s-paulraj@ti.com> CC: Sudhakar Rajashekhara <sudhakar.raj@ti.com> CC: Ben Warren <biggerbadderben@gmail.com> CC: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
201 lines
5.1 KiB
C
201 lines
5.1 KiB
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>
|
|
*
|
|
* 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 2 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, write to the Free Software
|
|
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <i2c.h>
|
|
#include <net.h>
|
|
#include <netdev.h>
|
|
#include <asm/arch/hardware.h>
|
|
#include <asm/arch/emif_defs.h>
|
|
#include <asm/arch/emac_defs.h>
|
|
#include <asm/io.h>
|
|
#include "../common/misc.h"
|
|
#include "common.h"
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
#define pinmux(x) (&davinci_syscfg_regs->pinmux[x])
|
|
|
|
/* SPI0 pin muxer settings */
|
|
static const struct pinmux_config spi1_pins[] = {
|
|
{ pinmux(5), 1, 1 },
|
|
{ pinmux(5), 1, 2 },
|
|
{ pinmux(5), 1, 4 },
|
|
{ pinmux(5), 1, 5 }
|
|
};
|
|
|
|
/* UART pin muxer settings */
|
|
static const struct pinmux_config uart_pins[] = {
|
|
{ pinmux(0), 4, 6 },
|
|
{ pinmux(0), 4, 7 },
|
|
{ pinmux(4), 2, 4 },
|
|
{ pinmux(4), 2, 5 }
|
|
};
|
|
|
|
#ifdef CONFIG_DRIVER_TI_EMAC
|
|
static const struct pinmux_config emac_pins[] = {
|
|
{ pinmux(2), 8, 1 },
|
|
{ pinmux(2), 8, 2 },
|
|
{ pinmux(2), 8, 3 },
|
|
{ pinmux(2), 8, 4 },
|
|
{ pinmux(2), 8, 5 },
|
|
{ pinmux(2), 8, 6 },
|
|
{ pinmux(2), 8, 7 },
|
|
{ pinmux(3), 8, 0 },
|
|
{ pinmux(3), 8, 1 },
|
|
{ pinmux(3), 8, 2 },
|
|
{ pinmux(3), 8, 3 },
|
|
{ pinmux(3), 8, 4 },
|
|
{ pinmux(3), 8, 5 },
|
|
{ pinmux(3), 8, 6 },
|
|
{ pinmux(3), 8, 7 },
|
|
{ pinmux(4), 8, 0 },
|
|
{ pinmux(4), 8, 1 }
|
|
};
|
|
#endif /* CONFIG_DRIVER_TI_EMAC */
|
|
|
|
/* I2C pin muxer settings */
|
|
static const struct pinmux_config i2c_pins[] = {
|
|
{ pinmux(4), 2, 2 },
|
|
{ pinmux(4), 2, 3 }
|
|
};
|
|
|
|
#ifdef CONFIG_NAND_DAVINCI
|
|
const struct pinmux_config nand_pins[] = {
|
|
{ pinmux(7), 1, 1 },
|
|
{ pinmux(7), 1, 2 },
|
|
{ pinmux(7), 1, 4 },
|
|
{ pinmux(7), 1, 5 },
|
|
{ pinmux(9), 1, 0 },
|
|
{ pinmux(9), 1, 1 },
|
|
{ pinmux(9), 1, 2 },
|
|
{ pinmux(9), 1, 3 },
|
|
{ pinmux(9), 1, 4 },
|
|
{ pinmux(9), 1, 5 },
|
|
{ pinmux(9), 1, 6 },
|
|
{ pinmux(9), 1, 7 },
|
|
{ pinmux(12), 1, 5 },
|
|
{ pinmux(12), 1, 6 }
|
|
};
|
|
#endif
|
|
|
|
static const struct pinmux_resource pinmuxes[] = {
|
|
#ifdef CONFIG_SPI_FLASH
|
|
PINMUX_ITEM(spi1_pins),
|
|
#endif
|
|
PINMUX_ITEM(uart_pins),
|
|
PINMUX_ITEM(i2c_pins),
|
|
#ifdef CONFIG_NAND_DAVINCI
|
|
PINMUX_ITEM(nand_pins),
|
|
#endif
|
|
};
|
|
|
|
static const struct lpsc_resource lpsc[] = {
|
|
{ DAVINCI_LPSC_AEMIF }, /* NAND, NOR */
|
|
{ DAVINCI_LPSC_SPI1 }, /* Serial Flash */
|
|
{ DAVINCI_LPSC_EMAC }, /* image download */
|
|
{ DAVINCI_LPSC_UART2 }, /* console */
|
|
{ DAVINCI_LPSC_GPIO },
|
|
};
|
|
|
|
int board_init(void)
|
|
{
|
|
#ifndef CONFIG_USE_IRQ
|
|
irq_init();
|
|
#endif
|
|
|
|
|
|
#ifdef CONFIG_NAND_DAVINCI
|
|
/*
|
|
* NAND CS setup - cycle counts based on da850evm NAND timings in the
|
|
* Linux kernel @ 25MHz EMIFA
|
|
*/
|
|
writel((DAVINCI_ABCR_WSETUP(0) |
|
|
DAVINCI_ABCR_WSTROBE(0) |
|
|
DAVINCI_ABCR_WHOLD(0) |
|
|
DAVINCI_ABCR_RSETUP(0) |
|
|
DAVINCI_ABCR_RSTROBE(1) |
|
|
DAVINCI_ABCR_RHOLD(0) |
|
|
DAVINCI_ABCR_TA(0) |
|
|
DAVINCI_ABCR_ASIZE_8BIT),
|
|
&davinci_emif_regs->ab2cr); /* CS3 */
|
|
#endif
|
|
|
|
/* arch number of the board */
|
|
gd->bd->bi_arch_number = MACH_TYPE_DAVINCI_DA850_EVM;
|
|
|
|
/* address of boot parameters */
|
|
gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR;
|
|
|
|
/*
|
|
* 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;
|
|
|
|
/* setup the SUSPSRC for ARM to control emulation suspend */
|
|
writel(readl(&davinci_syscfg_regs->suspsrc) &
|
|
~(DAVINCI_SYSCFG_SUSPSRC_EMAC | DAVINCI_SYSCFG_SUSPSRC_I2C |
|
|
DAVINCI_SYSCFG_SUSPSRC_SPI1 | DAVINCI_SYSCFG_SUSPSRC_TIMER0 |
|
|
DAVINCI_SYSCFG_SUSPSRC_UART2),
|
|
&davinci_syscfg_regs->suspsrc);
|
|
|
|
/* configure pinmux settings */
|
|
if (davinci_configure_pin_mux_items(pinmuxes, ARRAY_SIZE(pinmuxes)))
|
|
return 1;
|
|
|
|
#ifdef CONFIG_DRIVER_TI_EMAC
|
|
if (davinci_configure_pin_mux(emac_pins, ARRAY_SIZE(emac_pins)) != 0)
|
|
return 1;
|
|
/* set cfgchip3 to select MII */
|
|
writel(readl(&davinci_syscfg_regs->cfgchip3) & ~(1 << 8),
|
|
&davinci_syscfg_regs->cfgchip3);
|
|
#endif /* CONFIG_DRIVER_TI_EMAC */
|
|
|
|
/* enable the console UART */
|
|
writel((DAVINCI_UART_PWREMU_MGMT_FREE | DAVINCI_UART_PWREMU_MGMT_URRST |
|
|
DAVINCI_UART_PWREMU_MGMT_UTRST),
|
|
&davinci_uart2_ctrl_regs->pwremu_mgmt);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_DRIVER_TI_EMAC
|
|
|
|
/*
|
|
* Initializes on-board ethernet controllers.
|
|
*/
|
|
int board_eth_init(bd_t *bis)
|
|
{
|
|
if (!davinci_emac_initialize()) {
|
|
printf("Error: Ethernet init failed!\n");
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
#endif /* CONFIG_DRIVER_TI_EMAC */
|