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u-boot-brain/board/atmel/at91sam9261ek/at91sam9261ek.c
Wenyou.Yang@microchip.com 324873e7c2 board: at91sam9261ek: Update to support DT and DM 
Add the dts files to support deivce tree, update the configuration
files to support the device tree and driver model. The peripheral
clock and pins configuration are handled by the clock and the pinctrl
drivers respectively.

Enable the early debug UART to debug problems when an ICE or other
debug mechanism is not available.

Signed-off-by: Wenyou Yang <wenyou.yang@microchip.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-08-04 20:38:35 -04:00

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/*
* (C) Copyright 2007-2008
* Stelian Pop <stelian@popies.net>
* Lead Tech Design <www.leadtechdesign.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <debug_uart.h>
#include <asm/io.h>
#include <asm/arch/at91sam9261.h>
#include <asm/arch/at91sam9261_matrix.h>
#include <asm/arch/at91sam9_smc.h>
#include <asm/arch/at91_common.h>
#include <asm/arch/at91_rstc.h>
#include <asm/arch/clk.h>
#include <asm/arch/gpio.h>
#include <lcd.h>
#include <atmel_lcdc.h>
#if defined(CONFIG_RESET_PHY_R) && defined(CONFIG_DRIVER_DM9000)
#include <net.h>
#include <netdev.h>
#endif
#include <asm/mach-types.h>
DECLARE_GLOBAL_DATA_PTR;
/* ------------------------------------------------------------------------- */
/*
* Miscelaneous platform dependent initialisations
*/
#ifdef CONFIG_CMD_NAND
static void at91sam9261ek_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;
/* Enable CS3 */
csa = readl(&matrix->ebicsa);
csa |= AT91_MATRIX_CS3A_SMC_SMARTMEDIA;
writel(csa, &matrix->ebicsa);
/* Configure SMC CS3 for NAND/SmartMedia */
#ifdef CONFIG_AT91SAM9G10EK
writel(AT91_SMC_SETUP_NWE(2) | AT91_SMC_SETUP_NCS_WR(0) |
AT91_SMC_SETUP_NRD(2) | AT91_SMC_SETUP_NCS_RD(0),
&smc->cs[3].setup);
writel(AT91_SMC_PULSE_NWE(3) | AT91_SMC_PULSE_NCS_WR(7) |
AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(7),
&smc->cs[3].pulse);
writel(AT91_SMC_CYCLE_NWE(7) | AT91_SMC_CYCLE_NRD(7),
&smc->cs[3].cycle);
#else
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);
#endif
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(2),
&smc->cs[3].mode);
at91_periph_clk_enable(ATMEL_ID_PIOC);
/* 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_PIN_PC0, 0); /* NANDOE */
at91_set_A_periph(AT91_PIN_PC1, 0); /* NANDWE */
}
#endif
#ifdef CONFIG_DRIVER_DM9000
static void at91sam9261ek_dm9000_hw_init(void)
{
struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
/* Configure SMC CS2 for DM9000 */
#ifdef CONFIG_AT91SAM9G10EK
writel(AT91_SMC_SETUP_NWE(3) | AT91_SMC_SETUP_NCS_WR(0) |
AT91_SMC_SETUP_NRD(3) | AT91_SMC_SETUP_NCS_RD(0),
&smc->cs[2].setup);
writel(AT91_SMC_PULSE_NWE(6) | AT91_SMC_PULSE_NCS_WR(8) |
AT91_SMC_PULSE_NRD(6) | AT91_SMC_PULSE_NCS_RD(8),
&smc->cs[2].pulse);
writel(AT91_SMC_CYCLE_NWE(20) | AT91_SMC_CYCLE_NRD(20),
&smc->cs[2].cycle);
writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
AT91_SMC_MODE_EXNW_DISABLE |
AT91_SMC_MODE_BAT | AT91_SMC_MODE_DBW_16 |
AT91_SMC_MODE_TDF_CYCLE(1),
&smc->cs[2].mode);
#else
writel(AT91_SMC_SETUP_NWE(3) | AT91_SMC_SETUP_NCS_WR(0) |
AT91_SMC_SETUP_NRD(2) | AT91_SMC_SETUP_NCS_RD(0),
&smc->cs[2].setup);
writel(AT91_SMC_PULSE_NWE(4) | AT91_SMC_PULSE_NCS_WR(8) |
AT91_SMC_PULSE_NRD(4) | AT91_SMC_PULSE_NCS_RD(8),
&smc->cs[2].pulse);
writel(AT91_SMC_CYCLE_NWE(16) | AT91_SMC_CYCLE_NRD(16),
&smc->cs[2].cycle);
writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
AT91_SMC_MODE_EXNW_DISABLE |
AT91_SMC_MODE_BAT | AT91_SMC_MODE_DBW_16 |
AT91_SMC_MODE_TDF_CYCLE(1),
&smc->cs[2].mode);
#endif
/* Configure Reset signal as output */
at91_set_gpio_output(AT91_PIN_PC10, 0);
/* Configure Interrupt pin as input, no pull-up */
at91_set_gpio_input(AT91_PIN_PC11, 0);
}
#endif
#ifdef CONFIG_LCD
vidinfo_t panel_info = {
.vl_col = 240,
.vl_row = 320,
.vl_clk = 4965000,
.vl_sync = ATMEL_LCDC_INVLINE_INVERTED |
ATMEL_LCDC_INVFRAME_INVERTED,
.vl_bpix = 3,
.vl_tft = 1,
.vl_hsync_len = 5,
.vl_left_margin = 1,
.vl_right_margin = 33,
.vl_vsync_len = 1,
.vl_upper_margin = 1,
.vl_lower_margin = 0,
.mmio = ATMEL_BASE_LCDC,
};
void lcd_enable(void)
{
at91_set_gpio_value(AT91_PIN_PA12, 0); /* power up */
}
void lcd_disable(void)
{
at91_set_gpio_value(AT91_PIN_PA12, 1); /* power down */
}
static void at91sam9261ek_lcd_hw_init(void)
{
at91_set_A_periph(AT91_PIN_PB1, 0); /* LCDHSYNC */
at91_set_A_periph(AT91_PIN_PB2, 0); /* LCDDOTCK */
at91_set_A_periph(AT91_PIN_PB3, 0); /* LCDDEN */
at91_set_A_periph(AT91_PIN_PB4, 0); /* LCDCC */
at91_set_A_periph(AT91_PIN_PB7, 0); /* LCDD2 */
at91_set_A_periph(AT91_PIN_PB8, 0); /* LCDD3 */
at91_set_A_periph(AT91_PIN_PB9, 0); /* LCDD4 */
at91_set_A_periph(AT91_PIN_PB10, 0); /* LCDD5 */
at91_set_A_periph(AT91_PIN_PB11, 0); /* LCDD6 */
at91_set_A_periph(AT91_PIN_PB12, 0); /* LCDD7 */
at91_set_A_periph(AT91_PIN_PB15, 0); /* LCDD10 */
at91_set_A_periph(AT91_PIN_PB16, 0); /* LCDD11 */
at91_set_A_periph(AT91_PIN_PB17, 0); /* LCDD12 */
at91_set_A_periph(AT91_PIN_PB18, 0); /* LCDD13 */
at91_set_A_periph(AT91_PIN_PB19, 0); /* LCDD14 */
at91_set_A_periph(AT91_PIN_PB20, 0); /* LCDD15 */
at91_set_B_periph(AT91_PIN_PB23, 0); /* LCDD18 */
at91_set_B_periph(AT91_PIN_PB24, 0); /* LCDD19 */
at91_set_B_periph(AT91_PIN_PB25, 0); /* LCDD20 */
at91_set_B_periph(AT91_PIN_PB26, 0); /* LCDD21 */
at91_set_B_periph(AT91_PIN_PB27, 0); /* LCDD22 */
at91_set_B_periph(AT91_PIN_PB28, 0); /* LCDD23 */
at91_system_clk_enable(AT91_PMC_HCK1);
/* For 9G10EK, let U-Boot allocate the framebuffer in SDRAM */
#ifdef CONFIG_AT91SAM9261EK
gd->fb_base = ATMEL_BASE_SRAM;
#endif
}
#ifdef CONFIG_LCD_INFO
#include <nand.h>
#include <version.h>
void lcd_show_board_info(void)
{
ulong dram_size, nand_size;
int i;
char temp[32];
lcd_printf ("%s\n", U_BOOT_VERSION);
lcd_printf ("(C) 2008 ATMEL Corp\n");
lcd_printf ("at91support@atmel.com\n");
lcd_printf ("%s CPU at %s MHz\n",
ATMEL_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 += get_nand_dev_by_index(i)->size;
lcd_printf (" %ld MB SDRAM, %ld MB NAND\n",
dram_size >> 20,
nand_size >> 20 );
}
#endif /* CONFIG_LCD_INFO */
#endif
#ifdef CONFIG_DEBUG_UART_BOARD_INIT
void board_debug_uart_init(void)
{
at91_seriald_hw_init();
}
#endif
#ifdef CONFIG_BOARD_EARLY_INIT_F
int board_early_init_f(void)
{
#ifdef CONFIG_DEBUG_UART
debug_uart_init();
#endif
return 0;
}
#endif
int board_init(void)
{
#ifdef CONFIG_AT91SAM9G10EK
/* arch number of AT91SAM9G10EK-Board */
gd->bd->bi_arch_number = MACH_TYPE_AT91SAM9G10EK;
#else
/* arch number of AT91SAM9261EK-Board */
gd->bd->bi_arch_number = MACH_TYPE_AT91SAM9261EK;
#endif
/* adress of boot parameters */
gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
#ifdef CONFIG_CMD_NAND
at91sam9261ek_nand_hw_init();
#endif
#ifdef CONFIG_DRIVER_DM9000
at91sam9261ek_dm9000_hw_init();
#endif
#ifdef CONFIG_LCD
at91sam9261ek_lcd_hw_init();
#endif
return 0;
}
#ifdef CONFIG_DRIVER_DM9000
int board_eth_init(bd_t *bis)
{
return dm9000_initialize(bis);
}
#endif
int dram_init(void)
{
gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
CONFIG_SYS_SDRAM_SIZE);
return 0;
}
#ifdef CONFIG_RESET_PHY_R
void reset_phy(void)
{
#ifdef CONFIG_DRIVER_DM9000
/*
* Initialize ethernet HW addr prior to starting Linux,
* needed for nfsroot
*/
eth_init();
#endif
}
#endif
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