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uboot-mt623x/board/atmel/at91cap9adk/at91cap9adk.c

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/*
* (C) Copyright 2007-2008
* Stelian Pop <stelian.pop@leadtechdesign.com>
* Lead Tech Design <www.leadtechdesign.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <asm/arch/at91cap9.h>
#include <asm/arch/at91cap9_matrix.h>
#include <asm/arch/at91sam9_smc.h>
#include <asm/arch/at91_pmc.h>
#include <asm/arch/at91_rstc.h>
#include <asm/arch/gpio.h>
#include <asm/arch/io.h>
#if defined(CONFIG_RESET_PHY_R) && defined(CONFIG_MACB)
#include <net.h>
#endif
#define MP_BLOCK_3_BASE 0xFDF00000
DECLARE_GLOBAL_DATA_PTR;
/* ------------------------------------------------------------------------- */
/*
* Miscelaneous platform dependent initialisations
*/
static void at91cap9_serial_hw_init(void)
{
#ifdef CONFIG_USART0
at91_set_A_periph(AT91_PIN_PA22, 1); /* TXD0 */
at91_set_A_periph(AT91_PIN_PA23, 0); /* RXD0 */
at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_US0);
#endif
#ifdef CONFIG_USART1
at91_set_A_periph(AT91_PIN_PD0, 1); /* TXD1 */
at91_set_A_periph(AT91_PIN_PD1, 0); /* RXD1 */
at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_US1);
#endif
#ifdef CONFIG_USART2
at91_set_A_periph(AT91_PIN_PD2, 1); /* TXD2 */
at91_set_A_periph(AT91_PIN_PD3, 0); /* RXD2 */
at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_US2);
#endif
#ifdef CONFIG_USART3 /* DBGU */
at91_set_A_periph(AT91_PIN_PC30, 0); /* DRXD */
at91_set_A_periph(AT91_PIN_PC31, 1); /* DTXD */
at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_SYS);
#endif
}
static void at91cap9_nor_hw_init(void)
{
unsigned long csa;
/* Ensure EBI supply is 3.3V */
csa = at91_sys_read(AT91_MATRIX_EBICSA);
at91_sys_write(AT91_MATRIX_EBICSA,
csa | AT91_MATRIX_EBI_VDDIOMSEL_3_3V);
/* Configure SMC CS0 for parallel flash */
at91_sys_write(AT91_SMC_SETUP(0),
AT91_SMC_NWESETUP_(4) | AT91_SMC_NCS_WRSETUP_(2) |
AT91_SMC_NRDSETUP_(4) | AT91_SMC_NCS_RDSETUP_(2));
at91_sys_write(AT91_SMC_PULSE(0),
AT91_SMC_NWEPULSE_(8) | AT91_SMC_NCS_WRPULSE_(10) |
AT91_SMC_NRDPULSE_(8) | AT91_SMC_NCS_RDPULSE_(10));
at91_sys_write(AT91_SMC_CYCLE(0),
AT91_SMC_NWECYCLE_(16) | AT91_SMC_NRDCYCLE_(16));
at91_sys_write(AT91_SMC_MODE(0),
AT91_SMC_READMODE | AT91_SMC_WRITEMODE |
AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE |
AT91_SMC_DBW_16 | AT91_SMC_TDF_(1));
}
#ifdef CONFIG_CMD_NAND
static void at91cap9_nand_hw_init(void)
{
unsigned long csa;
/* Enable CS3 */
csa = at91_sys_read(AT91_MATRIX_EBICSA);
at91_sys_write(AT91_MATRIX_EBICSA,
csa | AT91_MATRIX_EBI_CS3A_SMC_SMARTMEDIA |
AT91_MATRIX_EBI_VDDIOMSEL_3_3V);
/* Configure SMC CS3 for NAND/SmartMedia */
at91_sys_write(AT91_SMC_SETUP(3),
AT91_SMC_NWESETUP_(2) | AT91_SMC_NCS_WRSETUP_(1) |
AT91_SMC_NRDSETUP_(2) | AT91_SMC_NCS_RDSETUP_(1));
at91_sys_write(AT91_SMC_PULSE(3),
AT91_SMC_NWEPULSE_(4) | AT91_SMC_NCS_WRPULSE_(6) |
AT91_SMC_NRDPULSE_(4) | AT91_SMC_NCS_RDPULSE_(6));
at91_sys_write(AT91_SMC_CYCLE(3),
AT91_SMC_NWECYCLE_(8) | AT91_SMC_NRDCYCLE_(8));
at91_sys_write(AT91_SMC_MODE(3),
AT91_SMC_READMODE | AT91_SMC_WRITEMODE |
AT91_SMC_EXNWMODE_DISABLE |
AT91_SMC_DBW_8 | AT91_SMC_TDF_(1));
at91_sys_write(AT91_PMC_PCER, 1 << AT91CAP9_ID_PIOABCD);
/* RDY/BSY is not connected */
/* Enable NandFlash */
at91_set_gpio_output(AT91_PIN_PD15, 1);
}
#endif
#ifdef CONFIG_HAS_DATAFLASH
static void at91cap9_spi_hw_init(void)
{
at91_set_B_periph(AT91_PIN_PA5, 0); /* SPI0_NPCS0 */
at91_set_B_periph(AT91_PIN_PA0, 0); /* SPI0_MISO */
at91_set_B_periph(AT91_PIN_PA1, 0); /* SPI0_MOSI */
at91_set_B_periph(AT91_PIN_PA2, 0); /* SPI0_SPCK */
/* Enable clock */
at91_sys_write(AT91_PMC_PCER, 1 << AT91CAP9_ID_SPI0);
}
#endif
#ifdef CONFIG_MACB
static void at91cap9_macb_hw_init(void)
{
/* Enable clock */
at91_sys_write(AT91_PMC_PCER, 1 << AT91CAP9_ID_EMAC);
/*
* Disable pull-up on:
* RXDV (PB22) => PHY normal mode (not Test mode)
* ERX0 (PB25) => PHY ADDR0
* ERX1 (PB26) => PHY ADDR1 => PHYADDR = 0x0
*
* PHY has internal pull-down
*/
writel(pin_to_mask(AT91_PIN_PB22) |
pin_to_mask(AT91_PIN_PB25) |
pin_to_mask(AT91_PIN_PB26),
pin_to_controller(AT91_PIN_PA0) + PIO_PUDR);
/* Need to reset PHY -> 500ms reset */
at91_sys_write(AT91_RSTC_MR, AT91_RSTC_KEY |
AT91_RSTC_ERSTL | (0x0D << 8) |
AT91_RSTC_URSTEN);
at91_sys_write(AT91_RSTC_CR, AT91_RSTC_KEY | AT91_RSTC_EXTRST);
/* Wait for end hardware reset */
while (!(at91_sys_read(AT91_RSTC_SR) & AT91_RSTC_NRSTL));
/* Re-enable pull-up */
writel(pin_to_mask(AT91_PIN_PB22) |
pin_to_mask(AT91_PIN_PB25) |
pin_to_mask(AT91_PIN_PB26),
pin_to_controller(AT91_PIN_PA0) + PIO_PUER);
at91_set_A_periph(AT91_PIN_PB21, 0); /* ETXCK_EREFCK */
at91_set_A_periph(AT91_PIN_PB22, 0); /* ERXDV */
at91_set_A_periph(AT91_PIN_PB25, 0); /* ERX0 */
at91_set_A_periph(AT91_PIN_PB26, 0); /* ERX1 */
at91_set_A_periph(AT91_PIN_PB27, 0); /* ERXER */
at91_set_A_periph(AT91_PIN_PB28, 0); /* ETXEN */
at91_set_A_periph(AT91_PIN_PB23, 0); /* ETX0 */
at91_set_A_periph(AT91_PIN_PB24, 0); /* ETX1 */
at91_set_A_periph(AT91_PIN_PB30, 0); /* EMDIO */
at91_set_A_periph(AT91_PIN_PB29, 0); /* EMDC */
#ifndef CONFIG_RMII
at91_set_B_periph(AT91_PIN_PC25, 0); /* ECRS */
at91_set_B_periph(AT91_PIN_PC26, 0); /* ECOL */
at91_set_B_periph(AT91_PIN_PC22, 0); /* ERX2 */
at91_set_B_periph(AT91_PIN_PC23, 0); /* ERX3 */
at91_set_B_periph(AT91_PIN_PC27, 0); /* ERXCK */
at91_set_B_periph(AT91_PIN_PC20, 0); /* ETX2 */
at91_set_B_periph(AT91_PIN_PC21, 0); /* ETX3 */
at91_set_B_periph(AT91_PIN_PC24, 0); /* ETXER */
#endif
/* Unlock EMAC, 3 0 2 1 sequence */
#define MP_MAC_KEY0 0x5969cb2a
#define MP_MAC_KEY1 0xb4a1872e
#define MP_MAC_KEY2 0x05683fbc
#define MP_MAC_KEY3 0x3634fba4
#define UNLOCK_MAC 0x00000008
writel(MP_MAC_KEY3, MP_BLOCK_3_BASE + 0x3c);
writel(MP_MAC_KEY0, MP_BLOCK_3_BASE + 0x30);
writel(MP_MAC_KEY2, MP_BLOCK_3_BASE + 0x38);
writel(MP_MAC_KEY1, MP_BLOCK_3_BASE + 0x34);
writel(UNLOCK_MAC, MP_BLOCK_3_BASE + 0x40);
}
#endif
#ifdef CONFIG_USB_OHCI_NEW
static void at91cap9_uhp_hw_init(void)
{
/* Unlock USB OHCI, 3 2 0 1 sequence */
#define MP_OHCI_KEY0 0x896c11ca
#define MP_OHCI_KEY1 0x68ebca21
#define MP_OHCI_KEY2 0x4823efbc
#define MP_OHCI_KEY3 0x8651aae4
#define UNLOCK_OHCI 0x00000010
writel(MP_OHCI_KEY3, MP_BLOCK_3_BASE + 0x3c);
writel(MP_OHCI_KEY2, MP_BLOCK_3_BASE + 0x38);
writel(MP_OHCI_KEY0, MP_BLOCK_3_BASE + 0x30);
writel(MP_OHCI_KEY1, MP_BLOCK_3_BASE + 0x34);
writel(UNLOCK_OHCI, MP_BLOCK_3_BASE + 0x40);
}
#endif
int board_init(void)
{
/* Enable Ctrlc */
console_init_f();
/* arch number of AT91CAP9ADK-Board */
gd->bd->bi_arch_number = MACH_TYPE_AT91CAP9ADK;
/* adress of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
at91cap9_serial_hw_init();
at91cap9_nor_hw_init();
#ifdef CONFIG_CMD_NAND
at91cap9_nand_hw_init();
#endif
#ifdef CONFIG_HAS_DATAFLASH
at91cap9_spi_hw_init();
#endif
#ifdef CONFIG_MACB
at91cap9_macb_hw_init();
#endif
#ifdef CONFIG_USB_OHCI_NEW
at91cap9_uhp_hw_init();
#endif
return 0;
}
int dram_init(void)
{
gd->bd->bi_dram[0].start = PHYS_SDRAM;
gd->bd->bi_dram[0].size = PHYS_SDRAM_SIZE;
return 0;
}
#ifdef CONFIG_RESET_PHY_R
void reset_phy(void)
{
#ifdef CONFIG_MACB
/*
* Initialize ethernet HW addr prior to starting Linux,
* needed for nfsroot
*/
eth_init(gd->bd);
#endif
}
#endif
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