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/*
* Bluewater Systems Snapper 9260/9G20 modules
*
* (C) Copyright 2011 Bluewater Systems
* Author: Andre Renaud <andre@bluewatersys.com>
* Author: Ryan Mallon <ryan@bluewatersys.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <atmel_lcd.h>
#include <atmel_lcdc.h>
#include <atmel_mci.h>
#include <dm.h>
#include <lcd.h>
#include <net.h>
#ifndef CONFIG_DM_ETH
#include <netdev.h>
#endif
#include <spi.h>
#include <asm/gpio.h>
#include <asm/io.h>
#include <asm/arch/at91sam9g45_matrix.h>
#include <asm/arch/at91sam9_smc.h>
#include <asm/arch/at91_common.h>
#include <asm/arch/at91_emac.h>
#include <asm/arch/at91_rstc.h>
#include <asm/arch/at91_rtc.h>
#include <asm/arch/at91_sck.h>
#include <asm/arch/atmel_serial.h>
#include <asm/arch/clk.h>
#include <asm/arch/gpio.h>
#include <dm/uclass-internal.h>
#ifdef CONFIG_GURNARD_SPLASH
#include "splash_logo.h"
#endif
DECLARE_GLOBAL_DATA_PTR;
/* IO Expander pins */
#define IO_EXP_ETH_RESET (0 << 1)
#define IO_EXP_ETH_POWER (1 << 1)
#ifdef CONFIG_MACB
static void gurnard_macb_hw_init(void)
{
struct at91_port *pioa = (struct at91_port *)ATMEL_BASE_PIOA;
at91_periph_clk_enable(ATMEL_ID_EMAC);
/*
* Enable pull-up on:
* RXDV (PA12) => MODE0 - PHY also has pull-up
* ERX0 (PA13) => MODE1 - PHY also has pull-up
* ERX1 (PA15) => MODE2 - PHY also has pull-up
*/
writel(pin_to_mask(AT91_PIN_PA15) |
pin_to_mask(AT91_PIN_PA12) |
pin_to_mask(AT91_PIN_PA13),
&pioa->puer);
at91_phy_reset();
at91_macb_hw_init();
}
#endif
#ifdef CONFIG_CMD_NAND
static int gurnard_nand_hw_init(void)
{
struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
ulong flags;
int ret;
/* Enable CS3 as NAND/SmartMedia */
setbits_le32(&matrix->ebicsa, AT91_MATRIX_EBI_CS3A_SMC_SMARTMEDIA);
/* Configure SMC CS3 for NAND/SmartMedia */
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(4) | AT91_SMC_PULSE_NCS_WR(4) |
AT91_SMC_PULSE_NRD(4) | AT91_SMC_PULSE_NCS_RD(4),
&smc->cs[3].pulse);
writel(AT91_SMC_CYCLE_NWE(7) | AT91_SMC_CYCLE_NRD(7),
&smc->cs[3].cycle);
#ifdef CONFIG_SYS_NAND_DBW_16
flags = AT91_SMC_MODE_DBW_16;
#else
flags = AT91_SMC_MODE_DBW_8;
#endif
writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
AT91_SMC_MODE_EXNW_DISABLE |
flags |
AT91_SMC_MODE_TDF_CYCLE(3),
&smc->cs[3].mode);
ret = gpio_request(CONFIG_SYS_NAND_READY_PIN, "nand_rdy");
if (ret)
return ret;
gpio_direction_input(CONFIG_SYS_NAND_READY_PIN);
/* Enable NandFlash */
ret = gpio_request(CONFIG_SYS_NAND_ENABLE_PIN, "nand_ce");
if (ret)
return ret;
gpio_direction_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
return 0;
}
#endif
#ifdef CONFIG_GURNARD_SPLASH
static void lcd_splash(int width, int height)
{
u16 colour;
int x, y;
u16 *base_addr = (u16 *)gd->video_bottom;
memset(base_addr, 0xff, width * height * 2);
/*
* Blit the logo to the center of the screen
*/
for (y = 0; y < BMP_LOGO_HEIGHT; y++) {
for (x = 0; x < BMP_LOGO_WIDTH; x++) {
int posx, posy;
colour = bmp_logo_palette[bmp_logo_bitmap[
y * BMP_LOGO_WIDTH + x]];
posx = x + (width - BMP_LOGO_WIDTH) / 2;
posy = y;
base_addr[posy * width + posx] = colour;
}
}
}
#endif
#ifdef CONFIG_DM_VIDEO
static void at91sam9g45_lcd_hw_init(void)
{
at91_set_A_periph(AT91_PIN_PE0, 0); /* LCDDPWR */
at91_set_A_periph(AT91_PIN_PE2, 0); /* LCDCC */
at91_set_A_periph(AT91_PIN_PE3, 0); /* LCDVSYNC */
at91_set_A_periph(AT91_PIN_PE4, 0); /* LCDHSYNC */
at91_set_A_periph(AT91_PIN_PE5, 0); /* LCDDOTCK */
at91_set_A_periph(AT91_PIN_PE7, 0); /* LCDD0 */
at91_set_A_periph(AT91_PIN_PE8, 0); /* LCDD1 */
at91_set_A_periph(AT91_PIN_PE9, 0); /* LCDD2 */
at91_set_A_periph(AT91_PIN_PE10, 0); /* LCDD3 */
at91_set_A_periph(AT91_PIN_PE11, 0); /* LCDD4 */
at91_set_A_periph(AT91_PIN_PE12, 0); /* LCDD5 */
at91_set_A_periph(AT91_PIN_PE13, 0); /* LCDD6 */
at91_set_A_periph(AT91_PIN_PE14, 0); /* LCDD7 */
at91_set_A_periph(AT91_PIN_PE15, 0); /* LCDD8 */
at91_set_A_periph(AT91_PIN_PE16, 0); /* LCDD9 */
at91_set_A_periph(AT91_PIN_PE17, 0); /* LCDD10 */
at91_set_A_periph(AT91_PIN_PE18, 0); /* LCDD11 */
at91_set_A_periph(AT91_PIN_PE19, 0); /* LCDD12 */
at91_set_B_periph(AT91_PIN_PE20, 0); /* LCDD13 */
at91_set_A_periph(AT91_PIN_PE21, 0); /* LCDD14 */
at91_set_A_periph(AT91_PIN_PE22, 0); /* LCDD15 */
at91_set_A_periph(AT91_PIN_PE23, 0); /* LCDD16 */
at91_set_A_periph(AT91_PIN_PE24, 0); /* LCDD17 */
at91_set_A_periph(AT91_PIN_PE25, 0); /* LCDD18 */
at91_set_A_periph(AT91_PIN_PE26, 0); /* LCDD19 */
at91_set_A_periph(AT91_PIN_PE27, 0); /* LCDD20 */
at91_set_B_periph(AT91_PIN_PE28, 0); /* LCDD21 */
at91_set_A_periph(AT91_PIN_PE29, 0); /* LCDD22 */
at91_set_A_periph(AT91_PIN_PE30, 0); /* LCDD23 */
at91_periph_clk_enable(ATMEL_ID_LCDC);
}
#endif
#ifdef CONFIG_GURNARD_FPGA
/**
* Initialise the memory bus settings so that we can talk to the
* memory mapped FPGA
*/
static int fpga_hw_init(void)
{
struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
int i;
setbits_le32(&matrix->ebicsa, AT91_MATRIX_EBI_CS1A_SDRAMC);
at91_set_a_periph(2, 4, 0); /* EBIA21 */
at91_set_a_periph(2, 5, 0); /* EBIA22 */
at91_set_a_periph(2, 6, 0); /* EBIA23 */
at91_set_a_periph(2, 7, 0); /* EBIA24 */
at91_set_a_periph(2, 12, 0); /* EBIA25 */
for (i = 15; i <= 31; i++) /* EBINWAIT & EBID16 - 31 */
at91_set_a_periph(2, i, 0);
/* configure SMC cs0 for FPGA access timing */
writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(2) |
AT91_SMC_SETUP_NRD(0) | AT91_SMC_SETUP_NCS_RD(2),
&smc->cs[0].setup);
writel(AT91_SMC_PULSE_NWE(5) | AT91_SMC_PULSE_NCS_WR(4) |
AT91_SMC_PULSE_NRD(6) | AT91_SMC_PULSE_NCS_RD(4),
&smc->cs[0].pulse);
writel(AT91_SMC_CYCLE_NWE(6) | AT91_SMC_CYCLE_NRD(6),
&smc->cs[0].cycle);
writel(AT91_SMC_MODE_BAT |
AT91_SMC_MODE_EXNW_DISABLE |
AT91_SMC_MODE_DBW_32 |
AT91_SMC_MODE_TDF |
AT91_SMC_MODE_TDF_CYCLE(2),
&smc->cs[0].mode);
/* Do a write to within EBI_CS1 to enable the SDCK */
writel(0, ATMEL_BASE_CS1);
return 0;
}
#endif
#ifdef CONFIG_CMD_USB
#define USB0_ENABLE_PIN AT91_PIN_PB22
#define USB1_ENABLE_PIN AT91_PIN_PB23
void gurnard_usb_init(void)
{
at91_set_gpio_output(USB0_ENABLE_PIN, 1);
at91_set_gpio_value(USB0_ENABLE_PIN, 0);
at91_set_gpio_output(USB1_ENABLE_PIN, 1);
at91_set_gpio_value(USB1_ENABLE_PIN, 0);
}
#endif
#ifdef CONFIG_GENERIC_ATMEL_MCI
int cpu_mmc_init(bd_t *bis)
{
return atmel_mci_init((void *)ATMEL_BASE_MCI0);
}
#endif
static void gurnard_enable_console(int enable)
{
at91_set_gpio_output(AT91_PIN_PB14, 1);
at91_set_gpio_value(AT91_PIN_PB14, enable ? 0 : 1);
}
void at91sam9g45_slowclock_init(void)
{
/*
* On AT91SAM9G45 revC CPUs, the slow clock can be based on an
* internal impreciseRC oscillator or an external 32kHz oscillator.
* Switch to the latter.
*/
unsigned i, tmp;
ulong *reg = (ulong *)ATMEL_BASE_SCKCR;
tmp = readl(reg);
if ((tmp & AT91SAM9G45_SCKCR_OSCSEL) == AT91SAM9G45_SCKCR_OSCSEL_RC) {
timer_init();
tmp |= AT91SAM9G45_SCKCR_OSC32EN;
writel(tmp, reg);
for (i = 0; i < 1200; i++)
udelay(1000);
tmp |= AT91SAM9G45_SCKCR_OSCSEL_32;
writel(tmp, reg);
udelay(200);
tmp &= ~AT91SAM9G45_SCKCR_RCEN;
writel(tmp, reg);
}
}
int board_early_init_f(void)
{
at91_seriald_hw_init();
gurnard_enable_console(1);
return 0;
}
int board_init(void)
{
const char *rev_str;
#ifdef CONFIG_CMD_NAND
int ret;
#endif
at91_periph_clk_enable(ATMEL_ID_PIOA);
at91_periph_clk_enable(ATMEL_ID_PIOB);
at91_periph_clk_enable(ATMEL_ID_PIOC);
at91_periph_clk_enable(ATMEL_ID_PIODE);
at91sam9g45_slowclock_init();
/*
* Clear the RTC IDR to disable all IRQs. Avoid issues when Linux
* boots with spurious IRQs.
*/
writel(0xffffffff, AT91_RTC_IDR);
/* Make sure that the reset signal is attached properly */
setbits_le32(AT91_ASM_RSTC_MR, AT91_RSTC_KEY | AT91_RSTC_MR_URSTEN);
gd->bd->bi_arch_number = MACH_TYPE_SNAPPER_9260;
/* Address of boot parameters */
gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
#ifdef CONFIG_CMD_NAND
ret = gurnard_nand_hw_init();
if (ret)
return ret;
#endif
#ifdef CONFIG_ATMEL_SPI
at91_spi0_hw_init(1 << 4);
#endif
#ifdef CONFIG_MACB
gurnard_macb_hw_init();
#endif
#ifdef CONFIG_GURNARD_FPGA
fpga_hw_init();
#endif
#ifdef CONFIG_CMD_USB
gurnard_usb_init();
#endif
#ifdef CONFIG_CMD_MMC
at91_set_A_periph(AT91_PIN_PA12, 0);
at91_set_gpio_output(AT91_PIN_PA8, 1);
at91_set_gpio_value(AT91_PIN_PA8, 0);
at91_mci_hw_init();
#endif
#ifdef CONFIG_DM_VIDEO
at91sam9g45_lcd_hw_init();
at91_set_A_periph(AT91_PIN_PE6, 1); /* power up */
/* Select the second timing index for board rev 2 */
rev_str = getenv("board_rev");
if (rev_str && !strncmp(rev_str, "2", 1)) {
struct udevice *dev;
uclass_find_first_device(UCLASS_VIDEO, &dev);
if (dev) {
struct atmel_lcd_platdata *plat = dev_get_platdata(dev);
plat->timing_index = 1;
}
}
#endif
return 0;
}
int board_late_init(void)
{
u_int8_t env_enetaddr[8];
char *env_str;
char *end;
int i;
/*
* Set MAC address so we do not need to init Ethernet before Linux
* boot
*/
env_str = getenv("ethaddr");
if (env_str) {
struct at91_emac *emac = (struct at91_emac *)ATMEL_BASE_EMAC;
/* Parse MAC address */
for (i = 0; i < 6; i++) {
env_enetaddr[i] = env_str ?
simple_strtoul(env_str, &end, 16) : 0;
if (env_str)
env_str = (*end) ? end+1 : end;
}
/* Set hardware address */
writel(env_enetaddr[0] | env_enetaddr[1] << 8 |
env_enetaddr[2] << 16 | env_enetaddr[3] << 24,
&emac->sa2l);
writel((env_enetaddr[4] | env_enetaddr[5] << 8), &emac->sa2h);
printf("MAC: %s\n", getenv("ethaddr"));
} else {
/* Not set in environment */
printf("MAC: not set\n");
}
#ifdef CONFIG_GURNARD_SPLASH
lcd_splash(480, 272);
#endif
return 0;
}
#ifndef CONFIG_DM_ETH
int board_eth_init(bd_t *bis)
{
return macb_eth_initialize(0, (void *)ATMEL_BASE_EMAC, 0);
}
#endif
int dram_init(void)
{
gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
CONFIG_SYS_SDRAM_SIZE);
return 0;
}
void reset_phy(void)
{
}
/* This breaks the Ethernet MAC at present */
void enable_caches(void)
{
dcache_enable();
}
/* SPI chip select control - only used for FPGA programming */
#ifdef CONFIG_ATMEL_SPI
int spi_cs_is_valid(unsigned int bus, unsigned int cs)
{
return bus == 0 && cs == 0;
}
void spi_cs_activate(struct spi_slave *slave)
{
/* We don't use chipselects for FPGA programming */
}
void spi_cs_deactivate(struct spi_slave *slave)
{
/* We don't use chipselects for FPGA programming */
}
#endif /* CONFIG_ATMEL_SPI */
static struct atmel_serial_platdata at91sam9260_serial_plat = {
.base_addr = ATMEL_BASE_DBGU,
};
U_BOOT_DEVICE(at91sam9260_serial) = {
.name = "serial_atmel",
.platdata = &at91sam9260_serial_plat,
};