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u-boot-brain/board/atmel/at91sam9x5ek/at91sam9x5ek.c
Bo Shen 8d7b3638e9 arm: atmel: at91sam9x5: cleanup cs configure for spi 
As the cs for spi is worked in gpio mode, so no need to configure
it as peripheral and then configure to gpio. Configure it to gpio
directly.

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
2013-12-17 17:21:14 +01:00

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/*
* Copyright (C) 2012 Atmel Corporation
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/io.h>
#include <asm/arch/at91sam9x5_matrix.h>
#include <asm/arch/at91sam9_smc.h>
#include <asm/arch/at91_common.h>
#include <asm/arch/at91_pmc.h>
#include <asm/arch/at91_rstc.h>
#include <asm/arch/gpio.h>
#include <asm/arch/clk.h>
#include <lcd.h>
#include <atmel_hlcdc.h>
#include <atmel_mci.h>
#ifdef CONFIG_MACB
#include <net.h>
#endif
#include <netdev.h>
#ifdef CONFIG_LCD_INFO
#include <nand.h>
#include <version.h>
#endif
#ifdef CONFIG_ATMEL_SPI
#include <spi.h>
#endif
DECLARE_GLOBAL_DATA_PTR;
/* ------------------------------------------------------------------------- */
/*
* Miscelaneous platform dependent initialisations
*/
#ifdef CONFIG_CMD_NAND
static void at91sam9x5ek_nand_hw_init(void)
{
struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
unsigned long csa;
/* Enable CS3 */
csa = readl(&matrix->ebicsa);
csa |= AT91_MATRIX_EBI_CS3A_SMC_SMARTMEDIA;
/* NAND flash on D16 */
csa |= AT91_MATRIX_NFD0_ON_D16;
/* Configure IO drive */
csa &= ~AT91_MATRIX_EBI_EBI_IOSR_NORMAL;
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(5) |
AT91_SMC_PULSE_NRD(4) | AT91_SMC_PULSE_NCS_RD(6),
&smc->cs[3].pulse);
writel(AT91_SMC_CYCLE_NWE(5) | AT91_SMC_CYCLE_NRD(6),
&smc->cs[3].cycle);
writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
AT91_SMC_MODE_EXNW_DISABLE |
#ifdef CONFIG_SYS_NAND_DBW_16
AT91_SMC_MODE_DBW_16 |
#else /* CONFIG_SYS_NAND_DBW_8 */
AT91_SMC_MODE_DBW_8 |
#endif
AT91_SMC_MODE_TDF_CYCLE(1),
&smc->cs[3].mode);
writel(1 << ATMEL_ID_PIOCD, &pmc->pcer);
/* 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);
at91_set_a_periph(AT91_PIO_PORTD, 0, 1); /* NAND OE */
at91_set_a_periph(AT91_PIO_PORTD, 1, 1); /* NAND WE */
at91_set_a_periph(AT91_PIO_PORTD, 2, 1); /* NAND ALE */
at91_set_a_periph(AT91_PIO_PORTD, 3, 1); /* NAND CLE */
at91_set_a_periph(AT91_PIO_PORTD, 6, 1);
at91_set_a_periph(AT91_PIO_PORTD, 7, 1);
at91_set_a_periph(AT91_PIO_PORTD, 8, 1);
at91_set_a_periph(AT91_PIO_PORTD, 9, 1);
at91_set_a_periph(AT91_PIO_PORTD, 10, 1);
at91_set_a_periph(AT91_PIO_PORTD, 11, 1);
at91_set_a_periph(AT91_PIO_PORTD, 12, 1);
at91_set_a_periph(AT91_PIO_PORTD, 13, 1);
}
#endif
int board_eth_init(bd_t *bis)
{
int rc = 0;
#ifdef CONFIG_MACB
if (has_emac0())
rc = macb_eth_initialize(0,
(void *)ATMEL_BASE_EMAC0, 0x00);
if (has_emac1())
rc = macb_eth_initialize(1,
(void *)ATMEL_BASE_EMAC1, 0x00);
#endif
return rc;
}
#ifdef CONFIG_LCD
vidinfo_t panel_info = {
.vl_col = 800,
.vl_row = 480,
.vl_clk = 24000000,
.vl_sync = LCDC_LCDCFG5_HSPOL | LCDC_LCDCFG5_VSPOL,
.vl_bpix = LCD_BPP,
.vl_tft = 1,
.vl_clk_pol = 1,
.vl_hsync_len = 128,
.vl_left_margin = 64,
.vl_right_margin = 64,
.vl_vsync_len = 2,
.vl_upper_margin = 22,
.vl_lower_margin = 21,
.mmio = ATMEL_BASE_LCDC,
};
void lcd_enable(void)
{
if (has_lcdc())
at91_set_a_periph(AT91_PIO_PORTC, 29, 1); /* power up */
}
void lcd_disable(void)
{
if (has_lcdc())
at91_set_a_periph(AT91_PIO_PORTC, 29, 0); /* power down */
}
static void at91sam9x5ek_lcd_hw_init(void)
{
struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
if (has_lcdc()) {
at91_set_a_periph(AT91_PIO_PORTC, 26, 0); /* LCDPWM */
at91_set_a_periph(AT91_PIO_PORTC, 27, 0); /* LCDVSYNC */
at91_set_a_periph(AT91_PIO_PORTC, 28, 0); /* LCDHSYNC */
at91_set_a_periph(AT91_PIO_PORTC, 24, 0); /* LCDDISP */
at91_set_a_periph(AT91_PIO_PORTC, 29, 0); /* LCDDEN */
at91_set_a_periph(AT91_PIO_PORTC, 30, 0); /* LCDPCK */
at91_set_a_periph(AT91_PIO_PORTC, 0, 0); /* LCDD0 */
at91_set_a_periph(AT91_PIO_PORTC, 1, 0); /* LCDD1 */
at91_set_a_periph(AT91_PIO_PORTC, 2, 0); /* LCDD2 */
at91_set_a_periph(AT91_PIO_PORTC, 3, 0); /* LCDD3 */
at91_set_a_periph(AT91_PIO_PORTC, 4, 0); /* LCDD4 */
at91_set_a_periph(AT91_PIO_PORTC, 5, 0); /* LCDD5 */
at91_set_a_periph(AT91_PIO_PORTC, 6, 0); /* LCDD6 */
at91_set_a_periph(AT91_PIO_PORTC, 7, 0); /* LCDD7 */
at91_set_a_periph(AT91_PIO_PORTC, 8, 0); /* LCDD8 */
at91_set_a_periph(AT91_PIO_PORTC, 9, 0); /* LCDD9 */
at91_set_a_periph(AT91_PIO_PORTC, 10, 0); /* LCDD10 */
at91_set_a_periph(AT91_PIO_PORTC, 11, 0); /* LCDD11 */
at91_set_a_periph(AT91_PIO_PORTC, 12, 0); /* LCDD12 */
at91_set_a_periph(AT91_PIO_PORTC, 13, 0); /* LCDD13 */
at91_set_a_periph(AT91_PIO_PORTC, 14, 0); /* LCDD14 */
at91_set_a_periph(AT91_PIO_PORTC, 15, 0); /* LCDD15 */
at91_set_a_periph(AT91_PIO_PORTC, 16, 0); /* LCDD16 */
at91_set_a_periph(AT91_PIO_PORTC, 17, 0); /* LCDD17 */
at91_set_a_periph(AT91_PIO_PORTC, 18, 0); /* LCDD18 */
at91_set_a_periph(AT91_PIO_PORTC, 19, 0); /* LCDD19 */
at91_set_a_periph(AT91_PIO_PORTC, 20, 0); /* LCDD20 */
at91_set_a_periph(AT91_PIO_PORTC, 21, 0); /* LCDD21 */
at91_set_a_periph(AT91_PIO_PORTC, 22, 0); /* LCDD22 */
at91_set_a_periph(AT91_PIO_PORTC, 23, 0); /* LCDD23 */
writel(1 << ATMEL_ID_LCDC, &pmc->pcer);
}
}
#ifdef CONFIG_LCD_INFO
void lcd_show_board_info(void)
{
ulong dram_size, nand_size;
int i;
char temp[32];
if (has_lcdc()) {
lcd_printf("%s\n", U_BOOT_VERSION);
lcd_printf("(C) 2012 ATMEL Corp\n");
lcd_printf("at91support@atmel.com\n");
lcd_printf("%s CPU at %s MHz\n",
get_cpu_name(),
strmhz(temp, get_cpu_clk_rate()));
dram_size = 0;
for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++)
dram_size += gd->bd->bi_dram[i].size;
nand_size = 0;
for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++)
nand_size += nand_info[i].size;
lcd_printf(" %ld MB SDRAM, %ld MB NAND\n",
dram_size >> 20,
nand_size >> 20);
}
}
#endif /* CONFIG_LCD_INFO */
#endif /* CONFIG_LCD */
/* SPI chip select control */
#ifdef CONFIG_ATMEL_SPI
int spi_cs_is_valid(unsigned int bus, unsigned int cs)
{
return bus == 0 && cs < 2;
}
void spi_cs_activate(struct spi_slave *slave)
{
switch (slave->cs) {
case 1:
at91_set_pio_output(AT91_PIO_PORTA, 7, 0);
break;
case 0:
default:
at91_set_pio_output(AT91_PIO_PORTA, 14, 0);
break;
}
}
void spi_cs_deactivate(struct spi_slave *slave)
{
switch (slave->cs) {
case 1:
at91_set_pio_output(AT91_PIO_PORTA, 7, 1);
break;
case 0:
default:
at91_set_pio_output(AT91_PIO_PORTA, 14, 1);
break;
}
}
#endif /* CONFIG_ATMEL_SPI */
#ifdef CONFIG_GENERIC_ATMEL_MCI
int board_mmc_init(bd_t *bd)
{
at91_mci_hw_init();
return atmel_mci_init((void *)ATMEL_BASE_HSMCI0);
}
#endif
int board_early_init_f(void)
{
at91_seriald_hw_init();
return 0;
}
int board_init(void)
{
/* arch number of AT91SAM9X5EK-Board */
gd->bd->bi_arch_number = MACH_TYPE_AT91SAM9X5EK;
/* adress of boot parameters */
gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
#ifdef CONFIG_CMD_NAND
at91sam9x5ek_nand_hw_init();
#endif
#ifdef CONFIG_ATMEL_SPI
at91_spi0_hw_init(1 << 4);
#endif
#ifdef CONFIG_MACB
at91_macb_hw_init();
#endif
#if defined(CONFIG_USB_OHCI_NEW) || defined(CONFIG_USB_EHCI)
at91_uhp_hw_init();
#endif
#ifdef CONFIG_LCD
at91sam9x5ek_lcd_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;
}
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