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linux-next/arch/arm/mach-at91/at572d940hf.c
Andrew Victor 5e38efae96 ARM: 5850/1: [AT91] AT572D940HF processor support 
Add support for the Atmel AT572D940HF processor (DIOPSIS range).
This processor integrates an ARM926 core, a DSP and the SoC
peripherals usually found on an AT91 processor (USART, SSC, SPI, TWI,
CAN, etc)

Signed-off-by: Antonio R. Costa <costa.antonior@gmail.com>
Signed-off-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-01-20 12:34:06 +00:00

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/*
* arch/arm/mach-at91/at572d940hf.c
*
* Antonio R. Costa <costa.antonior@gmail.com>
* Copyright (C) 2008 Atmel
*
* Copyright (C) 2005 SAN People
*
* 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/module.h>
#include <asm/mach/irq.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <mach/at572d940hf.h>
#include <mach/at91_pmc.h>
#include <mach/at91_rstc.h>
#include "generic.h"
#include "clock.h"
static struct map_desc at572d940hf_io_desc[] __initdata = {
{
.virtual = AT91_VA_BASE_SYS,
.pfn = __phys_to_pfn(AT91_BASE_SYS),
.length = SZ_16K,
.type = MT_DEVICE,
}, {
.virtual = AT91_IO_VIRT_BASE - AT572D940HF_SRAM_SIZE,
.pfn = __phys_to_pfn(AT572D940HF_SRAM_BASE),
.length = AT572D940HF_SRAM_SIZE,
.type = MT_DEVICE,
},
};
/* --------------------------------------------------------------------
* Clocks
* -------------------------------------------------------------------- */
/*
* The peripheral clocks.
*/
static struct clk pioA_clk = {
.name = "pioA_clk",
.pmc_mask = 1 << AT572D940HF_ID_PIOA,
.type = CLK_TYPE_PERIPHERAL,
};
static struct clk pioB_clk = {
.name = "pioB_clk",
.pmc_mask = 1 << AT572D940HF_ID_PIOB,
.type = CLK_TYPE_PERIPHERAL,
};
static struct clk pioC_clk = {
.name = "pioC_clk",
.pmc_mask = 1 << AT572D940HF_ID_PIOC,
.type = CLK_TYPE_PERIPHERAL,
};
static struct clk macb_clk = {
.name = "macb_clk",
.pmc_mask = 1 << AT572D940HF_ID_EMAC,
.type = CLK_TYPE_PERIPHERAL,
};
static struct clk usart0_clk = {
.name = "usart0_clk",
.pmc_mask = 1 << AT572D940HF_ID_US0,
.type = CLK_TYPE_PERIPHERAL,
};
static struct clk usart1_clk = {
.name = "usart1_clk",
.pmc_mask = 1 << AT572D940HF_ID_US1,
.type = CLK_TYPE_PERIPHERAL,
};
static struct clk usart2_clk = {
.name = "usart2_clk",
.pmc_mask = 1 << AT572D940HF_ID_US2,
.type = CLK_TYPE_PERIPHERAL,
};
static struct clk mmc_clk = {
.name = "mci_clk",
.pmc_mask = 1 << AT572D940HF_ID_MCI,
.type = CLK_TYPE_PERIPHERAL,
};
static struct clk udc_clk = {
.name = "udc_clk",
.pmc_mask = 1 << AT572D940HF_ID_UDP,
.type = CLK_TYPE_PERIPHERAL,
};
static struct clk twi0_clk = {
.name = "twi0_clk",
.pmc_mask = 1 << AT572D940HF_ID_TWI0,
.type = CLK_TYPE_PERIPHERAL,
};
static struct clk spi0_clk = {
.name = "spi0_clk",
.pmc_mask = 1 << AT572D940HF_ID_SPI0,
.type = CLK_TYPE_PERIPHERAL,
};
static struct clk spi1_clk = {
.name = "spi1_clk",
.pmc_mask = 1 << AT572D940HF_ID_SPI1,
.type = CLK_TYPE_PERIPHERAL,
};
static struct clk ssc0_clk = {
.name = "ssc0_clk",
.pmc_mask = 1 << AT572D940HF_ID_SSC0,
.type = CLK_TYPE_PERIPHERAL,
};
static struct clk ssc1_clk = {
.name = "ssc1_clk",
.pmc_mask = 1 << AT572D940HF_ID_SSC1,
.type = CLK_TYPE_PERIPHERAL,
};
static struct clk ssc2_clk = {
.name = "ssc2_clk",
.pmc_mask = 1 << AT572D940HF_ID_SSC2,
.type = CLK_TYPE_PERIPHERAL,
};
static struct clk tc0_clk = {
.name = "tc0_clk",
.pmc_mask = 1 << AT572D940HF_ID_TC0,
.type = CLK_TYPE_PERIPHERAL,
};
static struct clk tc1_clk = {
.name = "tc1_clk",
.pmc_mask = 1 << AT572D940HF_ID_TC1,
.type = CLK_TYPE_PERIPHERAL,
};
static struct clk tc2_clk = {
.name = "tc2_clk",
.pmc_mask = 1 << AT572D940HF_ID_TC2,
.type = CLK_TYPE_PERIPHERAL,
};
static struct clk ohci_clk = {
.name = "ohci_clk",
.pmc_mask = 1 << AT572D940HF_ID_UHP,
.type = CLK_TYPE_PERIPHERAL,
};
static struct clk ssc3_clk = {
.name = "ssc3_clk",
.pmc_mask = 1 << AT572D940HF_ID_SSC3,
.type = CLK_TYPE_PERIPHERAL,
};
static struct clk twi1_clk = {
.name = "twi1_clk",
.pmc_mask = 1 << AT572D940HF_ID_TWI1,
.type = CLK_TYPE_PERIPHERAL,
};
static struct clk can0_clk = {
.name = "can0_clk",
.pmc_mask = 1 << AT572D940HF_ID_CAN0,
.type = CLK_TYPE_PERIPHERAL,
};
static struct clk can1_clk = {
.name = "can1_clk",
.pmc_mask = 1 << AT572D940HF_ID_CAN1,
.type = CLK_TYPE_PERIPHERAL,
};
static struct clk mAgicV_clk = {
.name = "mAgicV_clk",
.pmc_mask = 1 << AT572D940HF_ID_MSIRQ0,
.type = CLK_TYPE_PERIPHERAL,
};
static struct clk *periph_clocks[] __initdata = {
&pioA_clk,
&pioB_clk,
&pioC_clk,
&macb_clk,
&usart0_clk,
&usart1_clk,
&usart2_clk,
&mmc_clk,
&udc_clk,
&twi0_clk,
&spi0_clk,
&spi1_clk,
&ssc0_clk,
&ssc1_clk,
&ssc2_clk,
&tc0_clk,
&tc1_clk,
&tc2_clk,
&ohci_clk,
&ssc3_clk,
&twi1_clk,
&can0_clk,
&can1_clk,
&mAgicV_clk,
/* irq0 .. irq2 */
};
/*
* The five programmable clocks.
* You must configure pin multiplexing to bring these signals out.
*/
static struct clk pck0 = {
.name = "pck0",
.pmc_mask = AT91_PMC_PCK0,
.type = CLK_TYPE_PROGRAMMABLE,
.id = 0,
};
static struct clk pck1 = {
.name = "pck1",
.pmc_mask = AT91_PMC_PCK1,
.type = CLK_TYPE_PROGRAMMABLE,
.id = 1,
};
static struct clk pck2 = {
.name = "pck2",
.pmc_mask = AT91_PMC_PCK2,
.type = CLK_TYPE_PROGRAMMABLE,
.id = 2,
};
static struct clk pck3 = {
.name = "pck3",
.pmc_mask = AT91_PMC_PCK3,
.type = CLK_TYPE_PROGRAMMABLE,
.id = 3,
};
static struct clk mAgicV_mem_clk = {
.name = "mAgicV_mem_clk",
.pmc_mask = AT91_PMC_PCK4,
.type = CLK_TYPE_PROGRAMMABLE,
.id = 4,
};
/* HClocks */
static struct clk hck0 = {
.name = "hck0",
.pmc_mask = AT91_PMC_HCK0,
.type = CLK_TYPE_SYSTEM,
.id = 0,
};
static struct clk hck1 = {
.name = "hck1",
.pmc_mask = AT91_PMC_HCK1,
.type = CLK_TYPE_SYSTEM,
.id = 1,
};
static void __init at572d940hf_register_clocks(void)
{
int i;
for (i = 0; i < ARRAY_SIZE(periph_clocks); i++)
clk_register(periph_clocks[i]);
clk_register(&pck0);
clk_register(&pck1);
clk_register(&pck2);
clk_register(&pck3);
clk_register(&mAgicV_mem_clk);
clk_register(&hck0);
clk_register(&hck1);
}
/* --------------------------------------------------------------------
* GPIO
* -------------------------------------------------------------------- */
static struct at91_gpio_bank at572d940hf_gpio[] = {
{
.id = AT572D940HF_ID_PIOA,
.offset = AT91_PIOA,
.clock = &pioA_clk,
}, {
.id = AT572D940HF_ID_PIOB,
.offset = AT91_PIOB,
.clock = &pioB_clk,
}, {
.id = AT572D940HF_ID_PIOC,
.offset = AT91_PIOC,
.clock = &pioC_clk,
}
};
static void at572d940hf_reset(void)
{
at91_sys_write(AT91_RSTC_CR, AT91_RSTC_KEY | AT91_RSTC_PROCRST | AT91_RSTC_PERRST);
}
/* --------------------------------------------------------------------
* AT572D940HF processor initialization
* -------------------------------------------------------------------- */
void __init at572d940hf_initialize(unsigned long main_clock)
{
/* Map peripherals */
iotable_init(at572d940hf_io_desc, ARRAY_SIZE(at572d940hf_io_desc));
at91_arch_reset = at572d940hf_reset;
at91_extern_irq = (1 << AT572D940HF_ID_IRQ0) | (1 << AT572D940HF_ID_IRQ1)
| (1 << AT572D940HF_ID_IRQ2);
/* Init clock subsystem */
at91_clock_init(main_clock);
/* Register the processor-specific clocks */
at572d940hf_register_clocks();
/* Register GPIO subsystem */
at91_gpio_init(at572d940hf_gpio, 3);
}
/* --------------------------------------------------------------------
* Interrupt initialization
* -------------------------------------------------------------------- */
/*
* The default interrupt priority levels (0 = lowest, 7 = highest).
*/
static unsigned int at572d940hf_default_irq_priority[NR_AIC_IRQS] __initdata = {
7, /* Advanced Interrupt Controller */
7, /* System Peripherals */
0, /* Parallel IO Controller A */
0, /* Parallel IO Controller B */
0, /* Parallel IO Controller C */
3, /* Ethernet */
6, /* USART 0 */
6, /* USART 1 */
6, /* USART 2 */
0, /* Multimedia Card Interface */
4, /* USB Device Port */
0, /* Two-Wire Interface 0 */
6, /* Serial Peripheral Interface 0 */
6, /* Serial Peripheral Interface 1 */
5, /* Serial Synchronous Controller 0 */
5, /* Serial Synchronous Controller 1 */
5, /* Serial Synchronous Controller 2 */
0, /* Timer Counter 0 */
0, /* Timer Counter 1 */
0, /* Timer Counter 2 */
3, /* USB Host port */
3, /* Serial Synchronous Controller 3 */
0, /* Two-Wire Interface 1 */
0, /* CAN Controller 0 */
0, /* CAN Controller 1 */
0, /* mAgicV HALT line */
0, /* mAgicV SIRQ0 line */
0, /* mAgicV exception line */
0, /* mAgicV end of DMA line */
0, /* Advanced Interrupt Controller */
0, /* Advanced Interrupt Controller */
0, /* Advanced Interrupt Controller */
};
void __init at572d940hf_init_interrupts(unsigned int priority[NR_AIC_IRQS])
{
if (!priority)
priority = at572d940hf_default_irq_priority;
/* Initialize the AIC interrupt controller */
at91_aic_init(priority);
/* Enable GPIO interrupts */
at91_gpio_irq_setup();
}
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