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authorAnton Arapov <anton@redhat.com>2012-04-16 10:05:28 +0200
committerAnton Arapov <anton@redhat.com>2012-04-16 10:05:28 +0200
commitb4b6116a13633898cf868f2f103c96a90c4c20f8 (patch)
tree93d1b7e2cfcdf473d8d4ff3ad141fa864f8491f6 /arch/arm/mach-at91/at91sam9263.c
parentedd4be777c953e5faafc80d091d3084b4343f5d3 (diff)
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fedora kernel: d9aad82f3319f3cfd1aebc01234254ef0c37ad84v3.3.2-1
Signed-off-by: Anton Arapov <anton@redhat.com>
Diffstat (limited to 'arch/arm/mach-at91/at91sam9263.c')
-rw-r--r--arch/arm/mach-at91/at91sam9263.c367
1 files changed, 367 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/at91sam9263.c b/arch/arm/mach-at91/at91sam9263.c
new file mode 100644
index 00000000000..75e876c258a
--- /dev/null
+++ b/arch/arm/mach-at91/at91sam9263.c
@@ -0,0 +1,367 @@
+/*
+ * arch/arm/mach-at91/at91sam9263.c
+ *
+ * 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/irq.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <mach/at91sam9263.h>
+#include <mach/at91_pmc.h>
+#include <mach/at91_rstc.h>
+
+#include "soc.h"
+#include "generic.h"
+#include "clock.h"
+#include "sam9_smc.h"
+
+/* --------------------------------------------------------------------
+ * Clocks
+ * -------------------------------------------------------------------- */
+
+/*
+ * The peripheral clocks.
+ */
+static struct clk pioA_clk = {
+ .name = "pioA_clk",
+ .pmc_mask = 1 << AT91SAM9263_ID_PIOA,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk pioB_clk = {
+ .name = "pioB_clk",
+ .pmc_mask = 1 << AT91SAM9263_ID_PIOB,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk pioCDE_clk = {
+ .name = "pioCDE_clk",
+ .pmc_mask = 1 << AT91SAM9263_ID_PIOCDE,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk usart0_clk = {
+ .name = "usart0_clk",
+ .pmc_mask = 1 << AT91SAM9263_ID_US0,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk usart1_clk = {
+ .name = "usart1_clk",
+ .pmc_mask = 1 << AT91SAM9263_ID_US1,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk usart2_clk = {
+ .name = "usart2_clk",
+ .pmc_mask = 1 << AT91SAM9263_ID_US2,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk mmc0_clk = {
+ .name = "mci0_clk",
+ .pmc_mask = 1 << AT91SAM9263_ID_MCI0,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk mmc1_clk = {
+ .name = "mci1_clk",
+ .pmc_mask = 1 << AT91SAM9263_ID_MCI1,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk can_clk = {
+ .name = "can_clk",
+ .pmc_mask = 1 << AT91SAM9263_ID_CAN,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk twi_clk = {
+ .name = "twi_clk",
+ .pmc_mask = 1 << AT91SAM9263_ID_TWI,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk spi0_clk = {
+ .name = "spi0_clk",
+ .pmc_mask = 1 << AT91SAM9263_ID_SPI0,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk spi1_clk = {
+ .name = "spi1_clk",
+ .pmc_mask = 1 << AT91SAM9263_ID_SPI1,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk ssc0_clk = {
+ .name = "ssc0_clk",
+ .pmc_mask = 1 << AT91SAM9263_ID_SSC0,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk ssc1_clk = {
+ .name = "ssc1_clk",
+ .pmc_mask = 1 << AT91SAM9263_ID_SSC1,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk ac97_clk = {
+ .name = "ac97_clk",
+ .pmc_mask = 1 << AT91SAM9263_ID_AC97C,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk tcb_clk = {
+ .name = "tcb_clk",
+ .pmc_mask = 1 << AT91SAM9263_ID_TCB,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk pwm_clk = {
+ .name = "pwm_clk",
+ .pmc_mask = 1 << AT91SAM9263_ID_PWMC,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk macb_clk = {
+ .name = "pclk",
+ .pmc_mask = 1 << AT91SAM9263_ID_EMAC,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk dma_clk = {
+ .name = "dma_clk",
+ .pmc_mask = 1 << AT91SAM9263_ID_DMA,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk twodge_clk = {
+ .name = "2dge_clk",
+ .pmc_mask = 1 << AT91SAM9263_ID_2DGE,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk udc_clk = {
+ .name = "udc_clk",
+ .pmc_mask = 1 << AT91SAM9263_ID_UDP,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk isi_clk = {
+ .name = "isi_clk",
+ .pmc_mask = 1 << AT91SAM9263_ID_ISI,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk lcdc_clk = {
+ .name = "lcdc_clk",
+ .pmc_mask = 1 << AT91SAM9263_ID_LCDC,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+static struct clk ohci_clk = {
+ .name = "ohci_clk",
+ .pmc_mask = 1 << AT91SAM9263_ID_UHP,
+ .type = CLK_TYPE_PERIPHERAL,
+};
+
+static struct clk *periph_clocks[] __initdata = {
+ &pioA_clk,
+ &pioB_clk,
+ &pioCDE_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,
+ &pwm_clk,
+ &macb_clk,
+ &twodge_clk,
+ &udc_clk,
+ &isi_clk,
+ &lcdc_clk,
+ &dma_clk,
+ &ohci_clk,
+ // irq0 .. irq1
+};
+
+static struct clk_lookup periph_clocks_lookups[] = {
+ /* One additional fake clock for macb_hclk */
+ CLKDEV_CON_ID("hclk", &macb_clk),
+ CLKDEV_CON_DEV_ID("pclk", "ssc.0", &ssc0_clk),
+ CLKDEV_CON_DEV_ID("pclk", "ssc.1", &ssc1_clk),
+ CLKDEV_CON_DEV_ID("mci_clk", "at91_mci.0", &mmc0_clk),
+ CLKDEV_CON_DEV_ID("mci_clk", "at91_mci.1", &mmc1_clk),
+ CLKDEV_CON_DEV_ID("spi_clk", "atmel_spi.0", &spi0_clk),
+ CLKDEV_CON_DEV_ID("spi_clk", "atmel_spi.1", &spi1_clk),
+ CLKDEV_CON_DEV_ID("t0_clk", "atmel_tcb.0", &tcb_clk),
+ /* fake hclk clock */
+ CLKDEV_CON_DEV_ID("hclk", "at91_ohci", &ohci_clk),
+ CLKDEV_CON_ID("pioA", &pioA_clk),
+ CLKDEV_CON_ID("pioB", &pioB_clk),
+ CLKDEV_CON_ID("pioC", &pioCDE_clk),
+ CLKDEV_CON_ID("pioD", &pioCDE_clk),
+ CLKDEV_CON_ID("pioE", &pioCDE_clk),
+};
+
+static struct clk_lookup usart_clocks_lookups[] = {
+ CLKDEV_CON_DEV_ID("usart", "atmel_usart.0", &mck),
+ CLKDEV_CON_DEV_ID("usart", "atmel_usart.1", &usart0_clk),
+ CLKDEV_CON_DEV_ID("usart", "atmel_usart.2", &usart1_clk),
+ CLKDEV_CON_DEV_ID("usart", "atmel_usart.3", &usart2_clk),
+};
+
+/*
+ * 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 at91sam9263_register_clocks(void)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(periph_clocks); i++)
+ clk_register(periph_clocks[i]);
+
+ clkdev_add_table(periph_clocks_lookups,
+ ARRAY_SIZE(periph_clocks_lookups));
+ clkdev_add_table(usart_clocks_lookups,
+ ARRAY_SIZE(usart_clocks_lookups));
+
+ clk_register(&pck0);
+ clk_register(&pck1);
+ clk_register(&pck2);
+ clk_register(&pck3);
+}
+
+static struct clk_lookup console_clock_lookup;
+
+void __init at91sam9263_set_console_clock(int id)
+{
+ if (id >= ARRAY_SIZE(usart_clocks_lookups))
+ return;
+
+ console_clock_lookup.con_id = "usart";
+ console_clock_lookup.clk = usart_clocks_lookups[id].clk;
+ clkdev_add(&console_clock_lookup);
+}
+
+/* --------------------------------------------------------------------
+ * GPIO
+ * -------------------------------------------------------------------- */
+
+static struct at91_gpio_bank at91sam9263_gpio[] __initdata = {
+ {
+ .id = AT91SAM9263_ID_PIOA,
+ .regbase = AT91SAM9263_BASE_PIOA,
+ }, {
+ .id = AT91SAM9263_ID_PIOB,
+ .regbase = AT91SAM9263_BASE_PIOB,
+ }, {
+ .id = AT91SAM9263_ID_PIOCDE,
+ .regbase = AT91SAM9263_BASE_PIOC,
+ }, {
+ .id = AT91SAM9263_ID_PIOCDE,
+ .regbase = AT91SAM9263_BASE_PIOD,
+ }, {
+ .id = AT91SAM9263_ID_PIOCDE,
+ .regbase = AT91SAM9263_BASE_PIOE,
+ }
+};
+
+/* --------------------------------------------------------------------
+ * AT91SAM9263 processor initialization
+ * -------------------------------------------------------------------- */
+
+static void __init at91sam9263_map_io(void)
+{
+ at91_init_sram(0, AT91SAM9263_SRAM0_BASE, AT91SAM9263_SRAM0_SIZE);
+ at91_init_sram(1, AT91SAM9263_SRAM1_BASE, AT91SAM9263_SRAM1_SIZE);
+}
+
+static void __init at91sam9263_ioremap_registers(void)
+{
+ at91_ioremap_shdwc(AT91SAM9263_BASE_SHDWC);
+ at91_ioremap_rstc(AT91SAM9263_BASE_RSTC);
+ at91sam926x_ioremap_pit(AT91SAM9263_BASE_PIT);
+ at91sam9_ioremap_smc(0, AT91SAM9263_BASE_SMC0);
+ at91sam9_ioremap_smc(1, AT91SAM9263_BASE_SMC1);
+}
+
+static void __init at91sam9263_initialize(void)
+{
+ arm_pm_restart = at91sam9_alt_restart;
+ at91_extern_irq = (1 << AT91SAM9263_ID_IRQ0) | (1 << AT91SAM9263_ID_IRQ1);
+
+ /* Register GPIO subsystem */
+ at91_gpio_init(at91sam9263_gpio, 5);
+}
+
+/* --------------------------------------------------------------------
+ * Interrupt initialization
+ * -------------------------------------------------------------------- */
+
+/*
+ * The default interrupt priority levels (0 = lowest, 7 = highest).
+ */
+static unsigned int at91sam9263_default_irq_priority[NR_AIC_IRQS] __initdata = {
+ 7, /* Advanced Interrupt Controller (FIQ) */
+ 7, /* System Peripherals */
+ 1, /* Parallel IO Controller A */
+ 1, /* Parallel IO Controller B */
+ 1, /* Parallel IO Controller C, D and E */
+ 0,
+ 0,
+ 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,
+ 0, /* 2D Graphic Engine */
+ 2, /* USB Device Port */
+ 0, /* Image Sensor Interface */
+ 3, /* LDC Controller */
+ 0, /* DMA Controller */
+ 0,
+ 2, /* USB Host port */
+ 0, /* Advanced Interrupt Controller (IRQ0) */
+ 0, /* Advanced Interrupt Controller (IRQ1) */
+};
+
+struct at91_init_soc __initdata at91sam9263_soc = {
+ .map_io = at91sam9263_map_io,
+ .default_irq_priority = at91sam9263_default_irq_priority,
+ .ioremap_registers = at91sam9263_ioremap_registers,
+ .register_clocks = at91sam9263_register_clocks,
+ .init = at91sam9263_initialize,
+};