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-rw-r--r--arch/arm/mach-at91/at572d940hf.c377
1 files changed, 377 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/at572d940hf.c b/arch/arm/mach-at91/at572d940hf.c
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index 000000000000..a6b9c68c003a
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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();
+}
+