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linux_dsm_epyc7002/arch/arm/mach-at91/board-cpu9krea.c
Jean-Christophe PLAGNIOL-VILLARD 3d51f259e8 at91: drop boot_params and PLAT_PHYS_OFFSET 
select ARM_PATCH_PHYS_VIRT
as with ARM_PATCH_PHYS_VIRT you can patch boot_params at runtime or any recent
bootloader will provide a valid atags pointer in r2

as point out by Russell on AT91 we never use XIP
so se do not need PLAT_PHYS_OFFSET

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Patrice Vilchez <patrice.vilchez@atmel.com>
Cc: Andrew Victor <linux@maxim.org.za>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-25 23:04:35 +08:00

384 lines
8.4 KiB
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/*
* linux/arch/arm/mach-at91/board-cpu9krea.c
*
* Copyright (C) 2005 SAN People
* Copyright (C) 2006 Atmel
* Copyright (C) 2009 Eric Benard - eric@eukrea.com
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/types.h>
#include <linux/init.h>
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/mtd/physmap.h>
#include <asm/setup.h>
#include <asm/mach-types.h>
#include <asm/irq.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>
#include <mach/hardware.h>
#include <mach/board.h>
#include <mach/gpio.h>
#include <mach/at91sam9_smc.h>
#include <mach/at91sam9260_matrix.h>
#include "sam9_smc.h"
#include "generic.h"
static void __init cpu9krea_init_early(void)
{
/* Initialize processor: 18.432 MHz crystal */
at91sam9260_initialize(18432000);
/* DGBU on ttyS0. (Rx & Tx only) */
at91_register_uart(0, 0, 0);
/* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS |
ATMEL_UART_RTS | ATMEL_UART_DTR | ATMEL_UART_DSR |
ATMEL_UART_DCD | ATMEL_UART_RI);
/* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS |
ATMEL_UART_RTS);
/* USART2 on ttyS3. (Rx, Tx, RTS, CTS) */
at91_register_uart(AT91SAM9260_ID_US2, 3, ATMEL_UART_CTS |
ATMEL_UART_RTS);
/* USART3 on ttyS4. (Rx, Tx) */
at91_register_uart(AT91SAM9260_ID_US3, 4, 0);
/* USART4 on ttyS5. (Rx, Tx) */
at91_register_uart(AT91SAM9260_ID_US4, 5, 0);
/* USART5 on ttyS6. (Rx, Tx) */
at91_register_uart(AT91SAM9260_ID_US5, 6, 0);
/* set serial console to ttyS0 (ie, DBGU) */
at91_set_serial_console(0);
}
static void __init cpu9krea_init_irq(void)
{
at91sam9260_init_interrupts(NULL);
}
/*
* USB Host port
*/
static struct at91_usbh_data __initdata cpu9krea_usbh_data = {
.ports = 2,
};
/*
* USB Device port
*/
static struct at91_udc_data __initdata cpu9krea_udc_data = {
.vbus_pin = AT91_PIN_PC8,
.pullup_pin = 0, /* pull-up driven by UDC */
};
/*
* MACB Ethernet device
*/
static struct at91_eth_data __initdata cpu9krea_macb_data = {
.is_rmii = 1,
};
/*
* NAND flash
*/
static struct atmel_nand_data __initdata cpu9krea_nand_data = {
.ale = 21,
.cle = 22,
.rdy_pin = AT91_PIN_PC13,
.enable_pin = AT91_PIN_PC14,
.bus_width_16 = 0,
};
#ifdef CONFIG_MACH_CPU9260
static struct sam9_smc_config __initdata cpu9krea_nand_smc_config = {
.ncs_read_setup = 0,
.nrd_setup = 1,
.ncs_write_setup = 0,
.nwe_setup = 1,
.ncs_read_pulse = 3,
.nrd_pulse = 3,
.ncs_write_pulse = 3,
.nwe_pulse = 3,
.read_cycle = 5,
.write_cycle = 5,
.mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
| AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
.tdf_cycles = 2,
};
#else
static struct sam9_smc_config __initdata cpu9krea_nand_smc_config = {
.ncs_read_setup = 0,
.nrd_setup = 2,
.ncs_write_setup = 0,
.nwe_setup = 2,
.ncs_read_pulse = 4,
.nrd_pulse = 4,
.ncs_write_pulse = 4,
.nwe_pulse = 4,
.read_cycle = 7,
.write_cycle = 7,
.mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
| AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
.tdf_cycles = 3,
};
#endif
static void __init cpu9krea_add_device_nand(void)
{
sam9_smc_configure(3, &cpu9krea_nand_smc_config);
at91_add_device_nand(&cpu9krea_nand_data);
}
/*
* NOR flash
*/
static struct physmap_flash_data cpuat9260_nor_data = {
.width = 2,
};
#define NOR_BASE AT91_CHIPSELECT_0
#define NOR_SIZE SZ_64M
static struct resource nor_flash_resources[] = {
{
.start = NOR_BASE,
.end = NOR_BASE + NOR_SIZE - 1,
.flags = IORESOURCE_MEM,
}
};
static struct platform_device cpu9krea_nor_flash = {
.name = "physmap-flash",
.id = 0,
.dev = {
.platform_data = &cpuat9260_nor_data,
},
.resource = nor_flash_resources,
.num_resources = ARRAY_SIZE(nor_flash_resources),
};
#ifdef CONFIG_MACH_CPU9260
static struct sam9_smc_config __initdata cpu9krea_nor_smc_config = {
.ncs_read_setup = 0,
.nrd_setup = 1,
.ncs_write_setup = 0,
.nwe_setup = 1,
.ncs_read_pulse = 10,
.nrd_pulse = 10,
.ncs_write_pulse = 6,
.nwe_pulse = 6,
.read_cycle = 12,
.write_cycle = 8,
.mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
| AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE
| AT91_SMC_DBW_16,
.tdf_cycles = 2,
};
#else
static struct sam9_smc_config __initdata cpu9krea_nor_smc_config = {
.ncs_read_setup = 0,
.nrd_setup = 1,
.ncs_write_setup = 0,
.nwe_setup = 1,
.ncs_read_pulse = 13,
.nrd_pulse = 13,
.ncs_write_pulse = 8,
.nwe_pulse = 8,
.read_cycle = 15,
.write_cycle = 10,
.mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
| AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE
| AT91_SMC_DBW_16,
.tdf_cycles = 2,
};
#endif
static __init void cpu9krea_add_device_nor(void)
{
unsigned long csa;
csa = at91_sys_read(AT91_MATRIX_EBICSA);
at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_VDDIOMSEL_3_3V);
/* configure chip-select 0 (NOR) */
sam9_smc_configure(0, &cpu9krea_nor_smc_config);
platform_device_register(&cpu9krea_nor_flash);
}
/*
* LEDs
*/
static struct gpio_led cpu9krea_leds[] = {
{ /* LED1 */
.name = "LED1",
.gpio = AT91_PIN_PC11,
.active_low = 1,
.default_trigger = "timer",
},
{ /* LED2 */
.name = "LED2",
.gpio = AT91_PIN_PC12,
.active_low = 1,
.default_trigger = "heartbeat",
},
{ /* LED3 */
.name = "LED3",
.gpio = AT91_PIN_PC7,
.active_low = 1,
.default_trigger = "none",
},
{ /* LED4 */
.name = "LED4",
.gpio = AT91_PIN_PC9,
.active_low = 1,
.default_trigger = "none",
}
};
static struct i2c_board_info __initdata cpu9krea_i2c_devices[] = {
{
I2C_BOARD_INFO("rtc-ds1307", 0x68),
.type = "ds1339",
},
};
/*
* GPIO Buttons
*/
#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
static struct gpio_keys_button cpu9krea_buttons[] = {
{
.gpio = AT91_PIN_PC3,
.code = BTN_0,
.desc = "BP1",
.active_low = 1,
.wakeup = 1,
},
{
.gpio = AT91_PIN_PB20,
.code = BTN_1,
.desc = "BP2",
.active_low = 1,
.wakeup = 1,
}
};
static struct gpio_keys_platform_data cpu9krea_button_data = {
.buttons = cpu9krea_buttons,
.nbuttons = ARRAY_SIZE(cpu9krea_buttons),
};
static struct platform_device cpu9krea_button_device = {
.name = "gpio-keys",
.id = -1,
.num_resources = 0,
.dev = {
.platform_data = &cpu9krea_button_data,
}
};
static void __init cpu9krea_add_device_buttons(void)
{
at91_set_gpio_input(AT91_PIN_PC3, 1); /* BP1 */
at91_set_deglitch(AT91_PIN_PC3, 1);
at91_set_gpio_input(AT91_PIN_PB20, 1); /* BP2 */
at91_set_deglitch(AT91_PIN_PB20, 1);
platform_device_register(&cpu9krea_button_device);
}
#else
static void __init cpu9krea_add_device_buttons(void)
{
}
#endif
/*
* MCI (SD/MMC)
*/
static struct at91_mmc_data __initdata cpu9krea_mmc_data = {
.slot_b = 0,
.wire4 = 1,
.det_pin = AT91_PIN_PA29,
};
static void __init cpu9krea_board_init(void)
{
/* NOR */
cpu9krea_add_device_nor();
/* Serial */
at91_add_device_serial();
/* USB Host */
at91_add_device_usbh(&cpu9krea_usbh_data);
/* USB Device */
at91_add_device_udc(&cpu9krea_udc_data);
/* NAND */
cpu9krea_add_device_nand();
/* Ethernet */
at91_add_device_eth(&cpu9krea_macb_data);
/* MMC */
at91_add_device_mmc(0, &cpu9krea_mmc_data);
/* I2C */
at91_add_device_i2c(cpu9krea_i2c_devices,
ARRAY_SIZE(cpu9krea_i2c_devices));
/* LEDs */
at91_gpio_leds(cpu9krea_leds, ARRAY_SIZE(cpu9krea_leds));
/* Push Buttons */
cpu9krea_add_device_buttons();
}
#ifdef CONFIG_MACH_CPU9260
MACHINE_START(CPUAT9260, "Eukrea CPU9260")
#else
MACHINE_START(CPUAT9G20, "Eukrea CPU9G20")
#endif
/* Maintainer: Eric Benard - EUKREA Electromatique */
.timer = &at91sam926x_timer,
.map_io = at91sam9260_map_io,
.init_early = cpu9krea_init_early,
.init_irq = cpu9krea_init_irq,
.init_machine = cpu9krea_board_init,
MACHINE_END
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