mirror of
https://github.com/AsahiLinux/u-boot
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20e442ab2d
The current macro is a misnomer since it does not declare a device directly. Instead, it declares driver_info record which U-Boot uses at runtime to create a device. The distinction seems somewhat minor most of the time, but is becomes quite confusing when we actually want to declare a device, with of-platdata. We are left trying to distinguish between a device which isn't actually device, and a device that is (perhaps an 'instance'?) It seems better to rename this macro to describe what it actually is. The macros is not widely used, since boards should use devicetree to declare devices. Rename it to U_BOOT_DRVINFO(), which indicates clearly that this is declaring a new driver_info record, not a device. Signed-off-by: Simon Glass <sjg@chromium.org>
153 lines
3.8 KiB
C
153 lines
3.8 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Bluewater Systems Snapper 9260/9G20 modules
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*
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* (C) Copyright 2011 Bluewater Systems
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* Author: Andre Renaud <andre@bluewatersys.com>
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* Author: Ryan Mallon <ryan@bluewatersys.com>
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*/
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#include <common.h>
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#include <dm.h>
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#include <init.h>
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#include <asm/io.h>
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#include <asm/gpio.h>
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#include <asm/mach-types.h>
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#include <asm/arch/at91sam9260_matrix.h>
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#include <asm/arch/at91sam9_smc.h>
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#include <asm/arch/at91_common.h>
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#include <asm/arch/clk.h>
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#include <asm/arch/gpio.h>
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#include <asm/arch/atmel_serial.h>
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#include <net.h>
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#include <netdev.h>
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#include <i2c.h>
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#include <pca953x.h>
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#include <linux/delay.h>
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DECLARE_GLOBAL_DATA_PTR;
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/* IO Expander pins */
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#define IO_EXP_ETH_RESET (0 << 1)
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#define IO_EXP_ETH_POWER (1 << 1)
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static void macb_hw_init(void)
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{
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struct at91_port *pioa = (struct at91_port *)ATMEL_BASE_PIOA;
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at91_periph_clk_enable(ATMEL_ID_EMAC0);
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/* Disable pull-ups to prevent PHY going into test mode */
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writel(pin_to_mask(AT91_PIN_PA14) |
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pin_to_mask(AT91_PIN_PA15) |
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pin_to_mask(AT91_PIN_PA18),
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&pioa->pudr);
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/* Power down ethernet */
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pca953x_set_dir(0x28, IO_EXP_ETH_POWER, PCA953X_DIR_OUT);
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pca953x_set_val(0x28, IO_EXP_ETH_POWER, 1);
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/* Hold ethernet in reset */
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pca953x_set_dir(0x28, IO_EXP_ETH_RESET, PCA953X_DIR_OUT);
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pca953x_set_val(0x28, IO_EXP_ETH_RESET, 0);
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/* Enable ethernet power */
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pca953x_set_val(0x28, IO_EXP_ETH_POWER, 0);
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at91_phy_reset();
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/* Bring the ethernet out of reset */
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pca953x_set_val(0x28, IO_EXP_ETH_RESET, 1);
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/* The phy internal reset take 21ms */
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udelay(21 * 1000);
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/* Re-enable pull-up */
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writel(pin_to_mask(AT91_PIN_PA14) |
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pin_to_mask(AT91_PIN_PA15) |
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pin_to_mask(AT91_PIN_PA18),
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&pioa->puer);
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at91_macb_hw_init();
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}
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static void nand_hw_init(void)
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{
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struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
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struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
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unsigned long csa;
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/* Enable CS3 as NAND/SmartMedia */
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csa = readl(&matrix->ebicsa);
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csa |= AT91_MATRIX_CS3A_SMC_SMARTMEDIA;
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writel(csa, &matrix->ebicsa);
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/* Configure SMC CS3 for NAND/SmartMedia */
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writel(AT91_SMC_SETUP_NWE(2) | AT91_SMC_SETUP_NCS_WR(0) |
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AT91_SMC_SETUP_NRD(2) | AT91_SMC_SETUP_NCS_RD(0),
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&smc->cs[3].setup);
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writel(AT91_SMC_PULSE_NWE(4) | AT91_SMC_PULSE_NCS_WR(4) |
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AT91_SMC_PULSE_NRD(4) | AT91_SMC_PULSE_NCS_RD(4),
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&smc->cs[3].pulse);
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writel(AT91_SMC_CYCLE_NWE(7) | AT91_SMC_CYCLE_NRD(7),
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&smc->cs[3].cycle);
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writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
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AT91_SMC_MODE_EXNW_DISABLE |
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AT91_SMC_MODE_DBW_8 |
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AT91_SMC_MODE_TDF_CYCLE(3),
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&smc->cs[3].mode);
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/* Configure RDY/BSY */
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gpio_request(CONFIG_SYS_NAND_READY_PIN, "nand_rdy");
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gpio_direction_input(CONFIG_SYS_NAND_READY_PIN);
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/* Enable NandFlash */
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gpio_request(CONFIG_SYS_NAND_ENABLE_PIN, "nand_ce");
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gpio_direction_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
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}
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int board_init(void)
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{
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at91_periph_clk_enable(ATMEL_ID_PIOA);
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at91_periph_clk_enable(ATMEL_ID_PIOB);
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at91_periph_clk_enable(ATMEL_ID_PIOC);
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/* The mach-type is the same for both Snapper 9260 and 9G20 */
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gd->bd->bi_arch_number = MACH_TYPE_SNAPPER_9260;
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/* Address of boot parameters */
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gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
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/* Initialise peripherals */
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at91_seriald_hw_init();
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i2c_set_bus_num(0);
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nand_hw_init();
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macb_hw_init();
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return 0;
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}
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int board_eth_init(struct bd_info *bis)
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{
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return macb_eth_initialize(0, (void *)ATMEL_BASE_EMAC0, 0x1f);
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}
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int dram_init(void)
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{
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gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
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CONFIG_SYS_SDRAM_SIZE);
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return 0;
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}
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void reset_phy(void)
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{
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}
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static struct atmel_serial_plat at91sam9260_serial_plat = {
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.base_addr = ATMEL_BASE_DBGU,
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};
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U_BOOT_DRVINFO(at91sam9260_serial) = {
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.name = "serial_atmel",
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.plat = &at91sam9260_serial_plat,
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};
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