upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
252 lines
6.2 KiB
252 lines
6.2 KiB
/*
|
|
* (C) Copyright 2007-2008
|
|
* Stelian Pop <stelian@popies.net>
|
|
* Lead Tech Design <www.leadtechdesign.com>
|
|
*
|
|
* Achim Ehrlich <aehrlich@taskit.de>
|
|
* taskit GmbH <www.taskit.de>
|
|
*
|
|
* (C) Copyright 2012-
|
|
* Markus Hubig <mhubig@imko.de>
|
|
* IMKO GmbH <www.imko.de>
|
|
* (C) Copyright 2014
|
|
* Heiko Schocher <hs@denx.de>
|
|
* DENX Software Engineering GmbH
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <asm/io.h>
|
|
#include <asm/arch/at91sam9_sdramc.h>
|
|
#include <asm/arch/at91sam9260_matrix.h>
|
|
#include <asm/arch/at91sam9_smc.h>
|
|
#include <asm/arch/at91_common.h>
|
|
#include <asm/arch/at91_pmc.h>
|
|
#include <asm/arch/at91_spi.h>
|
|
#include <spi.h>
|
|
#include <asm/arch/clk.h>
|
|
#include <asm/arch/gpio.h>
|
|
#include <watchdog.h>
|
|
#ifdef CONFIG_MACB
|
|
# include <net.h>
|
|
# include <netdev.h>
|
|
#endif
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
static void smartweb_nand_hw_init(void)
|
|
{
|
|
struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
|
|
struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
|
|
unsigned long csa;
|
|
|
|
/* Assign CS3 to NAND/SmartMedia Interface */
|
|
csa = readl(&matrix->ebicsa);
|
|
csa |= AT91_MATRIX_CS3A_SMC_SMARTMEDIA;
|
|
writel(csa, &matrix->ebicsa);
|
|
|
|
/* Configure SMC CS3 for NAND/SmartMedia */
|
|
writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(0) |
|
|
AT91_SMC_SETUP_NRD(1) | AT91_SMC_SETUP_NCS_RD(0),
|
|
&smc->cs[3].setup);
|
|
writel(AT91_SMC_PULSE_NWE(3) | AT91_SMC_PULSE_NCS_WR(3) |
|
|
AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(3),
|
|
&smc->cs[3].pulse);
|
|
writel(AT91_SMC_CYCLE_NWE(5) | AT91_SMC_CYCLE_NRD(5),
|
|
&smc->cs[3].cycle);
|
|
writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
|
|
AT91_SMC_MODE_TDF_CYCLE(2),
|
|
&smc->cs[3].mode);
|
|
|
|
/* Configure RDY/BSY */
|
|
at91_set_gpio_input(CONFIG_SYS_NAND_READY_PIN, 1);
|
|
|
|
/* Enable NandFlash */
|
|
at91_set_gpio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
|
|
}
|
|
|
|
#ifdef CONFIG_MACB
|
|
static void smartweb_macb_hw_init(void)
|
|
{
|
|
struct at91_port *pioa = (struct at91_port *)ATMEL_BASE_PIOA;
|
|
|
|
/* Enable the PHY Chip via PA26 on the Stamp 2 Adaptor */
|
|
at91_set_gpio_output(AT91_PIN_PA26, 0);
|
|
|
|
/*
|
|
* Disable pull-up on:
|
|
* RXDV (PA17) => PHY normal mode (not Test mode)
|
|
* ERX0 (PA14) => PHY ADDR0
|
|
* ERX1 (PA15) => PHY ADDR1
|
|
* ERX2 (PA25) => PHY ADDR2
|
|
* ERX3 (PA26) => PHY ADDR3
|
|
* ECRS (PA28) => PHY ADDR4 => PHYADDR = 0x0
|
|
*
|
|
* PHY has internal pull-down
|
|
*/
|
|
writel(pin_to_mask(AT91_PIN_PA14) |
|
|
pin_to_mask(AT91_PIN_PA15) |
|
|
pin_to_mask(AT91_PIN_PA17) |
|
|
pin_to_mask(AT91_PIN_PA25) |
|
|
pin_to_mask(AT91_PIN_PA26) |
|
|
pin_to_mask(AT91_PIN_PA28) |
|
|
pin_to_mask(AT91_PIN_PA29),
|
|
&pioa->pudr);
|
|
|
|
at91_phy_reset();
|
|
|
|
/* Re-enable pull-up */
|
|
writel(pin_to_mask(AT91_PIN_PA14) |
|
|
pin_to_mask(AT91_PIN_PA15) |
|
|
pin_to_mask(AT91_PIN_PA17) |
|
|
pin_to_mask(AT91_PIN_PA25) |
|
|
pin_to_mask(AT91_PIN_PA26) |
|
|
pin_to_mask(AT91_PIN_PA28) |
|
|
pin_to_mask(AT91_PIN_PA29),
|
|
&pioa->puer);
|
|
|
|
/* Initialize EMAC=MACB hardware */
|
|
at91_macb_hw_init();
|
|
}
|
|
#endif /* CONFIG_MACB */
|
|
|
|
#ifdef CONFIG_USB_GADGET_AT91
|
|
#include <linux/usb/at91_udc.h>
|
|
|
|
void at91_udp_hw_init(void)
|
|
{
|
|
at91_pmc_t *pmc = (at91_pmc_t *)ATMEL_BASE_PMC;
|
|
|
|
/* Enable PLLB */
|
|
writel(get_pllb_init(), &pmc->pllbr);
|
|
while ((readl(&pmc->sr) & AT91_PMC_LOCKB) != AT91_PMC_LOCKB)
|
|
;
|
|
|
|
/* Enable UDPCK clock, MCK is enabled in at91_clock_init() */
|
|
at91_periph_clk_enable(ATMEL_ID_UDP);
|
|
|
|
writel(AT91SAM926x_PMC_UDP, &pmc->scer);
|
|
}
|
|
|
|
struct at91_udc_data board_udc_data = {
|
|
.baseaddr = ATMEL_BASE_UDP0,
|
|
};
|
|
#endif
|
|
|
|
int board_early_init_f(void)
|
|
{
|
|
/* enable this here, as we have SPL without serial support */
|
|
at91_seriald_hw_init();
|
|
return 0;
|
|
}
|
|
|
|
int board_init(void)
|
|
{
|
|
/* power LED red */
|
|
at91_set_gpio_output(AT91_PIN_PC6, 0);
|
|
at91_set_gpio_output(AT91_PIN_PC7, 1);
|
|
/* alarm LED off */
|
|
at91_set_gpio_output(AT91_PIN_PC8, 0);
|
|
at91_set_gpio_output(AT91_PIN_PC9, 0);
|
|
/* prog LED red */
|
|
at91_set_gpio_output(AT91_PIN_PC10, 0);
|
|
at91_set_gpio_output(AT91_PIN_PC11, 1);
|
|
|
|
#ifdef CONFIG_USB_GADGET_AT91
|
|
at91_udp_hw_init();
|
|
at91_udc_probe(&board_udc_data);
|
|
#endif
|
|
|
|
/* Adress of boot parameters */
|
|
gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
|
|
|
|
smartweb_nand_hw_init();
|
|
#ifdef CONFIG_MACB
|
|
smartweb_macb_hw_init();
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
int dram_init(void)
|
|
{
|
|
gd->ram_size = get_ram_size(
|
|
(void *)CONFIG_SYS_SDRAM_BASE,
|
|
CONFIG_SYS_SDRAM_SIZE);
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_MACB
|
|
int board_eth_init(bd_t *bis)
|
|
{
|
|
return macb_eth_initialize(0, (void *)ATMEL_BASE_EMAC0, 0x00);
|
|
}
|
|
#endif /* CONFIG_MACB */
|
|
|
|
#if defined(CONFIG_SPL_BUILD)
|
|
#include <spl.h>
|
|
#include <nand.h>
|
|
#include <spi_flash.h>
|
|
|
|
void matrix_init(void)
|
|
{
|
|
struct at91_matrix *mat = (struct at91_matrix *)ATMEL_BASE_MATRIX;
|
|
|
|
writel((readl(&mat->scfg[3]) & (~AT91_MATRIX_SLOT_CYCLE))
|
|
| AT91_MATRIX_SLOT_CYCLE_(0x40),
|
|
&mat->scfg[3]);
|
|
}
|
|
|
|
void spl_board_init(void)
|
|
{
|
|
/* power LED orange */
|
|
at91_set_gpio_output(AT91_PIN_PC6, 1);
|
|
at91_set_gpio_output(AT91_PIN_PC7, 1);
|
|
/* alarm LED orange */
|
|
at91_set_gpio_output(AT91_PIN_PC8, 1);
|
|
at91_set_gpio_output(AT91_PIN_PC9, 1);
|
|
/* prog LED red */
|
|
at91_set_gpio_output(AT91_PIN_PC10, 0);
|
|
at91_set_gpio_output(AT91_PIN_PC11, 1);
|
|
|
|
smartweb_nand_hw_init();
|
|
at91_set_gpio_input(AT91_PIN_PA28, 1);
|
|
at91_set_gpio_input(AT91_PIN_PA29, 1);
|
|
|
|
/* check if both button are pressed */
|
|
if (at91_get_gpio_value(AT91_PIN_PA28) == 0 &&
|
|
at91_get_gpio_value(AT91_PIN_PA29) == 0) {
|
|
smartweb_nand_hw_init();
|
|
nand_init();
|
|
spl_nand_erase_one(0, 0);
|
|
}
|
|
}
|
|
|
|
#define SDRAM_BASE_CONF (AT91_SDRAMC_NC_9 | AT91_SDRAMC_NR_13 \
|
|
| AT91_SDRAMC_CAS_2 \
|
|
| AT91_SDRAMC_NB_4 | AT91_SDRAMC_DBW_32 \
|
|
| AT91_SDRAMC_TWR_VAL(2) | AT91_SDRAMC_TRC_VAL(7) \
|
|
| AT91_SDRAMC_TRP_VAL(2) | AT91_SDRAMC_TRCD_VAL(2) \
|
|
| AT91_SDRAMC_TRAS_VAL(5) | AT91_SDRAMC_TXSR_VAL(8))
|
|
|
|
void mem_init(void)
|
|
{
|
|
struct at91_matrix *ma = (struct at91_matrix *)ATMEL_BASE_MATRIX;
|
|
struct at91_port *port = (struct at91_port *)ATMEL_BASE_PIOC;
|
|
struct sdramc_reg setting;
|
|
|
|
setting.cr = SDRAM_BASE_CONF;
|
|
setting.mdr = AT91_SDRAMC_MD_SDRAM;
|
|
setting.tr = (CONFIG_SYS_MASTER_CLOCK * 7) / 1000000;
|
|
|
|
/*
|
|
* I write here directly in this register, because this
|
|
* approach is smaller than calling at91_set_a_periph() in a
|
|
* for loop. This saved me 96 bytes.
|
|
*/
|
|
writel(0xffff0000, &port->pdr);
|
|
|
|
writel(readl(&ma->ebicsa) | AT91_MATRIX_CS1A_SDRAMC, &ma->ebicsa);
|
|
sdramc_initialize(ATMEL_BASE_CS1, &setting);
|
|
}
|
|
#endif
|
|
|