mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-08 12:16:16 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
152 lines
3.8 KiB
C
152 lines
3.8 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Bluewater Systems Snapper 9260/9G20 modules
|
|
*
|
|
* (C) Copyright 2011 Bluewater Systems
|
|
* Author: Andre Renaud <andre@bluewatersys.com>
|
|
* Author: Ryan Mallon <ryan@bluewatersys.com>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <asm/io.h>
|
|
#include <asm/gpio.h>
|
|
#include <asm/mach-types.h>
|
|
#include <asm/arch/at91sam9260_matrix.h>
|
|
#include <asm/arch/at91sam9_smc.h>
|
|
#include <asm/arch/at91_common.h>
|
|
#include <asm/arch/clk.h>
|
|
#include <asm/arch/gpio.h>
|
|
#include <asm/arch/atmel_serial.h>
|
|
#include <net.h>
|
|
#include <netdev.h>
|
|
#include <i2c.h>
|
|
#include <pca953x.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
/* IO Expander pins */
|
|
#define IO_EXP_ETH_RESET (0 << 1)
|
|
#define IO_EXP_ETH_POWER (1 << 1)
|
|
|
|
static void macb_hw_init(void)
|
|
{
|
|
struct at91_port *pioa = (struct at91_port *)ATMEL_BASE_PIOA;
|
|
|
|
at91_periph_clk_enable(ATMEL_ID_EMAC0);
|
|
|
|
/* Disable pull-ups to prevent PHY going into test mode */
|
|
writel(pin_to_mask(AT91_PIN_PA14) |
|
|
pin_to_mask(AT91_PIN_PA15) |
|
|
pin_to_mask(AT91_PIN_PA18),
|
|
&pioa->pudr);
|
|
|
|
/* Power down ethernet */
|
|
pca953x_set_dir(0x28, IO_EXP_ETH_POWER, PCA953X_DIR_OUT);
|
|
pca953x_set_val(0x28, IO_EXP_ETH_POWER, 1);
|
|
|
|
/* Hold ethernet in reset */
|
|
pca953x_set_dir(0x28, IO_EXP_ETH_RESET, PCA953X_DIR_OUT);
|
|
pca953x_set_val(0x28, IO_EXP_ETH_RESET, 0);
|
|
|
|
/* Enable ethernet power */
|
|
pca953x_set_val(0x28, IO_EXP_ETH_POWER, 0);
|
|
|
|
at91_phy_reset();
|
|
|
|
/* Bring the ethernet out of reset */
|
|
pca953x_set_val(0x28, IO_EXP_ETH_RESET, 1);
|
|
|
|
/* The phy internal reset take 21ms */
|
|
udelay(21 * 1000);
|
|
|
|
/* Re-enable pull-up */
|
|
writel(pin_to_mask(AT91_PIN_PA14) |
|
|
pin_to_mask(AT91_PIN_PA15) |
|
|
pin_to_mask(AT91_PIN_PA18),
|
|
&pioa->puer);
|
|
|
|
at91_macb_hw_init();
|
|
}
|
|
|
|
static void 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 as NAND/SmartMedia */
|
|
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(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);
|
|
writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
|
|
AT91_SMC_MODE_EXNW_DISABLE |
|
|
AT91_SMC_MODE_DBW_8 |
|
|
AT91_SMC_MODE_TDF_CYCLE(3),
|
|
&smc->cs[3].mode);
|
|
|
|
/* Configure RDY/BSY */
|
|
gpio_request(CONFIG_SYS_NAND_READY_PIN, "nand_rdy");
|
|
gpio_direction_input(CONFIG_SYS_NAND_READY_PIN);
|
|
|
|
/* Enable NandFlash */
|
|
gpio_request(CONFIG_SYS_NAND_ENABLE_PIN, "nand_ce");
|
|
gpio_direction_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
|
|
}
|
|
|
|
int board_init(void)
|
|
{
|
|
at91_periph_clk_enable(ATMEL_ID_PIOA);
|
|
at91_periph_clk_enable(ATMEL_ID_PIOB);
|
|
at91_periph_clk_enable(ATMEL_ID_PIOC);
|
|
|
|
/* The mach-type is the same for both Snapper 9260 and 9G20 */
|
|
gd->bd->bi_arch_number = MACH_TYPE_SNAPPER_9260;
|
|
|
|
/* Address of boot parameters */
|
|
gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
|
|
|
|
/* Initialise peripherals */
|
|
at91_seriald_hw_init();
|
|
i2c_set_bus_num(0);
|
|
nand_hw_init();
|
|
macb_hw_init();
|
|
|
|
return 0;
|
|
}
|
|
|
|
int board_eth_init(bd_t *bis)
|
|
{
|
|
return macb_eth_initialize(0, (void *)ATMEL_BASE_EMAC0, 0x1f);
|
|
}
|
|
|
|
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)
|
|
{
|
|
}
|
|
|
|
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,
|
|
};
|