[ARM] 4764/1: [AT91] AT91CAP9 core support
Add support for Atmel's AT91CAP9 Customizable Microcontroller family.
<http://www.atmel.com/products/AT91CAP/Default.asp>
Signed-off-by: Stelian Pop <stelian@popies.net>
Signed-off-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-at91/at91cap9.c b/arch/arm/mach-at91/at91cap9.c
new file mode 100644
index 0000000..48d27d8
--- /dev/null
+++ b/arch/arm/mach-at91/at91cap9.c
@@ -0,0 +1,365 @@
+/*
+ * arch/arm/mach-at91/at91cap9.c
+ *
+ * Copyright (C) 2007 Stelian Pop <stelian.pop@leadtechdesign.com>
+ * Copyright (C) 2007 Lead Tech Design <www.leadtechdesign.com>
+ * Copyright (C) 2007 Atmel Corporation.
+ *
+ * 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.
+ *
+ */
+
+#include <linux/module.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/arch/at91cap9.h>
+#include <asm/arch/at91_pmc.h>
+#include <asm/arch/at91_rstc.h>
+
+#include "generic.h"
+#include "clock.h"
+
+static struct map_desc at91cap9_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 - AT91CAP9_SRAM_SIZE,
+ .pfn = __phys_to_pfn(AT91CAP9_SRAM_BASE),
+ .length = AT91CAP9_SRAM_SIZE,
+ .type = MT_DEVICE,
+ },
+};
+
+/* --------------------------------------------------------------------
+ * Clocks
+ * -------------------------------------------------------------------- */
+
+/*
+ * The peripheral clocks.
+ */
+static struct clk pioABCD_clk = {
+ .name = "pioABCD_clk",
+ .pmc_mask = 1 << AT91CAP9_ID_PIOABCD,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk mpb0_clk = {
+ .name = "mpb0_clk",
+ .pmc_mask = 1 << AT91CAP9_ID_MPB0,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk mpb1_clk = {
+ .name = "mpb1_clk",
+ .pmc_mask = 1 << AT91CAP9_ID_MPB1,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk mpb2_clk = {
+ .name = "mpb2_clk",
+ .pmc_mask = 1 << AT91CAP9_ID_MPB2,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk mpb3_clk = {
+ .name = "mpb3_clk",
+ .pmc_mask = 1 << AT91CAP9_ID_MPB3,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk mpb4_clk = {
+ .name = "mpb4_clk",
+ .pmc_mask = 1 << AT91CAP9_ID_MPB4,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk usart0_clk = {
+ .name = "usart0_clk",
+ .pmc_mask = 1 << AT91CAP9_ID_US0,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk usart1_clk = {
+ .name = "usart1_clk",
+ .pmc_mask = 1 << AT91CAP9_ID_US1,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk usart2_clk = {
+ .name = "usart2_clk",
+ .pmc_mask = 1 << AT91CAP9_ID_US2,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk mmc0_clk = {
+ .name = "mci0_clk",
+ .pmc_mask = 1 << AT91CAP9_ID_MCI0,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk mmc1_clk = {
+ .name = "mci1_clk",
+ .pmc_mask = 1 << AT91CAP9_ID_MCI1,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk can_clk = {
+ .name = "can_clk",
+ .pmc_mask = 1 << AT91CAP9_ID_CAN,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk twi_clk = {
+ .name = "twi_clk",
+ .pmc_mask = 1 << AT91CAP9_ID_TWI,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk spi0_clk = {
+ .name = "spi0_clk",
+ .pmc_mask = 1 << AT91CAP9_ID_SPI0,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk spi1_clk = {
+ .name = "spi1_clk",
+ .pmc_mask = 1 << AT91CAP9_ID_SPI1,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk ssc0_clk = {
+ .name = "ssc0_clk",
+ .pmc_mask = 1 << AT91CAP9_ID_SSC0,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk ssc1_clk = {
+ .name = "ssc1_clk",
+ .pmc_mask = 1 << AT91CAP9_ID_SSC1,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk ac97_clk = {
+ .name = "ac97_clk",
+ .pmc_mask = 1 << AT91CAP9_ID_AC97C,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk tcb_clk = {
+ .name = "tcb_clk",
+ .pmc_mask = 1 << AT91CAP9_ID_TCB,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk pwmc_clk = {
+ .name = "pwmc_clk",
+ .pmc_mask = 1 << AT91CAP9_ID_PWMC,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk macb_clk = {
+ .name = "macb_clk",
+ .pmc_mask = 1 << AT91CAP9_ID_EMAC,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk aestdes_clk = {
+ .name = "aestdes_clk",
+ .pmc_mask = 1 << AT91CAP9_ID_AESTDES,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk adc_clk = {
+ .name = "adc_clk",
+ .pmc_mask = 1 << AT91CAP9_ID_ADC,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk isi_clk = {
+ .name = "isi_clk",
+ .pmc_mask = 1 << AT91CAP9_ID_ISI,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk lcdc_clk = {
+ .name = "lcdc_clk",
+ .pmc_mask = 1 << AT91CAP9_ID_LCDC,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk dma_clk = {
+ .name = "dma_clk",
+ .pmc_mask = 1 << AT91CAP9_ID_DMA,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk udphs_clk = {
+ .name = "udphs_clk",
+ .pmc_mask = 1 << AT91CAP9_ID_UDPHS,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk ohci_clk = {
+ .name = "ohci_clk",
+ .pmc_mask = 1 << AT91CAP9_ID_UHP,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+
+static struct clk *periph_clocks[] __initdata = {
+ &pioABCD_clk,
+ &mpb0_clk,
+ &mpb1_clk,
+ &mpb2_clk,
+ &mpb3_clk,
+ &mpb4_clk,
+ &usart0_clk,
+ &usart1_clk,
+ &usart2_clk,
+ &mmc0_clk,
+ &mmc1_clk,
+ &can_clk,
+ &twi_clk,
+ &spi0_clk,
+ &spi1_clk,
+ &ssc0_clk,
+ &ssc1_clk,
+ &ac97_clk,
+ &tcb_clk,
+ &pwmc_clk,
+ &macb_clk,
+ &aestdes_clk,
+ &adc_clk,
+ &isi_clk,
+ &lcdc_clk,
+ &dma_clk,
+ &udphs_clk,
+ &ohci_clk,
+ // irq0 .. irq1
+};
+
+/*
+ * The four 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 void __init at91cap9_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);
+}
+
+/* --------------------------------------------------------------------
+ * GPIO
+ * -------------------------------------------------------------------- */
+
+static struct at91_gpio_bank at91cap9_gpio[] = {
+ {
+ .id = AT91CAP9_ID_PIOABCD,
+ .offset = AT91_PIOA,
+ .clock = &pioABCD_clk,
+ }, {
+ .id = AT91CAP9_ID_PIOABCD,
+ .offset = AT91_PIOB,
+ .clock = &pioABCD_clk,
+ }, {
+ .id = AT91CAP9_ID_PIOABCD,
+ .offset = AT91_PIOC,
+ .clock = &pioABCD_clk,
+ }, {
+ .id = AT91CAP9_ID_PIOABCD,
+ .offset = AT91_PIOD,
+ .clock = &pioABCD_clk,
+ }
+};
+
+static void at91cap9_reset(void)
+{
+ at91_sys_write(AT91_RSTC_CR, AT91_RSTC_KEY | AT91_RSTC_PROCRST | AT91_RSTC_PERRST);
+}
+
+/* --------------------------------------------------------------------
+ * AT91CAP9 processor initialization
+ * -------------------------------------------------------------------- */
+
+void __init at91cap9_initialize(unsigned long main_clock)
+{
+ /* Map peripherals */
+ iotable_init(at91cap9_io_desc, ARRAY_SIZE(at91cap9_io_desc));
+
+ at91_arch_reset = at91cap9_reset;
+ at91_extern_irq = (1 << AT91CAP9_ID_IRQ0) | (1 << AT91CAP9_ID_IRQ1);
+
+ /* Init clock subsystem */
+ at91_clock_init(main_clock);
+
+ /* Register the processor-specific clocks */
+ at91cap9_register_clocks();
+
+ /* Register GPIO subsystem */
+ at91_gpio_init(at91cap9_gpio, 4);
+}
+
+/* --------------------------------------------------------------------
+ * Interrupt initialization
+ * -------------------------------------------------------------------- */
+
+/*
+ * The default interrupt priority levels (0 = lowest, 7 = highest).
+ */
+static unsigned int at91cap9_default_irq_priority[NR_AIC_IRQS] __initdata = {
+ 7, /* Advanced Interrupt Controller (FIQ) */
+ 7, /* System Peripherals */
+ 1, /* Parallel IO Controller A, B, C and D */
+ 0, /* MP Block Peripheral 0 */
+ 0, /* MP Block Peripheral 1 */
+ 0, /* MP Block Peripheral 2 */
+ 0, /* MP Block Peripheral 3 */
+ 0, /* MP Block Peripheral 4 */
+ 5, /* USART 0 */
+ 5, /* USART 1 */
+ 5, /* USART 2 */
+ 0, /* Multimedia Card Interface 0 */
+ 0, /* Multimedia Card Interface 1 */
+ 3, /* CAN */
+ 6, /* Two-Wire Interface */
+ 5, /* Serial Peripheral Interface 0 */
+ 5, /* Serial Peripheral Interface 1 */
+ 4, /* Serial Synchronous Controller 0 */
+ 4, /* Serial Synchronous Controller 1 */
+ 5, /* AC97 Controller */
+ 0, /* Timer Counter 0, 1 and 2 */
+ 0, /* Pulse Width Modulation Controller */
+ 3, /* Ethernet */
+ 0, /* Advanced Encryption Standard, Triple DES*/
+ 0, /* Analog-to-Digital Converter */
+ 0, /* Image Sensor Interface */
+ 3, /* LCD Controller */
+ 0, /* DMA Controller */
+ 2, /* USB Device Port */
+ 2, /* USB Host port */
+ 0, /* Advanced Interrupt Controller (IRQ0) */
+ 0, /* Advanced Interrupt Controller (IRQ1) */
+};
+
+void __init at91cap9_init_interrupts(unsigned int priority[NR_AIC_IRQS])
+{
+ if (!priority)
+ priority = at91cap9_default_irq_priority;
+
+ /* Initialize the AIC interrupt controller */
+ at91_aic_init(priority);
+
+ /* Enable GPIO interrupts */
+ at91_gpio_irq_setup();
+}