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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
commit57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch)
tree5e910f0e82173f4ef4f51111366a3f1299037a7b /arch/arm/mach-realview/realview_pba8.c
Initial import
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diff --git a/arch/arm/mach-realview/realview_pba8.c b/arch/arm/mach-realview/realview_pba8.c
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+/*
+ * linux/arch/arm/mach-realview/realview_pba8.c
+ *
+ * Copyright (C) 2008 ARM Limited
+ * Copyright (C) 2000 Deep Blue Solutions Ltd
+ *
+ * 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/init.h>
+#include <linux/platform_device.h>
+#include <linux/device.h>
+#include <linux/amba/bus.h>
+#include <linux/amba/pl061.h>
+#include <linux/amba/mmci.h>
+#include <linux/amba/pl022.h>
+#include <linux/io.h>
+#include <linux/irqchip/arm-gic.h>
+#include <linux/platform_data/clk-realview.h>
+#include <linux/reboot.h>
+
+#include <asm/irq.h>
+#include <asm/mach-types.h>
+#include <asm/pgtable.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/time.h>
+
+#include <mach/hardware.h>
+#include <mach/board-pba8.h>
+#include <mach/irqs.h>
+
+#include "core.h"
+
+static struct map_desc realview_pba8_io_desc[] __initdata = {
+ {
+ .virtual = IO_ADDRESS(REALVIEW_SYS_BASE),
+ .pfn = __phys_to_pfn(REALVIEW_SYS_BASE),
+ .length = SZ_4K,
+ .type = MT_DEVICE,
+ }, {
+ .virtual = IO_ADDRESS(REALVIEW_PBA8_GIC_CPU_BASE),
+ .pfn = __phys_to_pfn(REALVIEW_PBA8_GIC_CPU_BASE),
+ .length = SZ_4K,
+ .type = MT_DEVICE,
+ }, {
+ .virtual = IO_ADDRESS(REALVIEW_PBA8_GIC_DIST_BASE),
+ .pfn = __phys_to_pfn(REALVIEW_PBA8_GIC_DIST_BASE),
+ .length = SZ_4K,
+ .type = MT_DEVICE,
+ }, {
+ .virtual = IO_ADDRESS(REALVIEW_SCTL_BASE),
+ .pfn = __phys_to_pfn(REALVIEW_SCTL_BASE),
+ .length = SZ_4K,
+ .type = MT_DEVICE,
+ }, {
+ .virtual = IO_ADDRESS(REALVIEW_PBA8_TIMER0_1_BASE),
+ .pfn = __phys_to_pfn(REALVIEW_PBA8_TIMER0_1_BASE),
+ .length = SZ_4K,
+ .type = MT_DEVICE,
+ }, {
+ .virtual = IO_ADDRESS(REALVIEW_PBA8_TIMER2_3_BASE),
+ .pfn = __phys_to_pfn(REALVIEW_PBA8_TIMER2_3_BASE),
+ .length = SZ_4K,
+ .type = MT_DEVICE,
+ },
+#ifdef CONFIG_PCI
+ {
+ .virtual = PCIX_UNIT_BASE,
+ .pfn = __phys_to_pfn(REALVIEW_PBA8_PCI_BASE),
+ .length = REALVIEW_PBA8_PCI_BASE_SIZE,
+ .type = MT_DEVICE
+ },
+#endif
+#ifdef CONFIG_DEBUG_LL
+ {
+ .virtual = IO_ADDRESS(REALVIEW_PBA8_UART0_BASE),
+ .pfn = __phys_to_pfn(REALVIEW_PBA8_UART0_BASE),
+ .length = SZ_4K,
+ .type = MT_DEVICE,
+ },
+#endif
+};
+
+static void __init realview_pba8_map_io(void)
+{
+ iotable_init(realview_pba8_io_desc, ARRAY_SIZE(realview_pba8_io_desc));
+}
+
+static struct pl061_platform_data gpio0_plat_data = {
+ .gpio_base = 0,
+};
+
+static struct pl061_platform_data gpio1_plat_data = {
+ .gpio_base = 8,
+};
+
+static struct pl061_platform_data gpio2_plat_data = {
+ .gpio_base = 16,
+};
+
+static struct pl022_ssp_controller ssp0_plat_data = {
+ .bus_id = 0,
+ .enable_dma = 0,
+ .num_chipselect = 1,
+};
+
+/*
+ * RealView PBA8Core AMBA devices
+ */
+
+#define GPIO2_IRQ { IRQ_PBA8_GPIO2 }
+#define GPIO3_IRQ { IRQ_PBA8_GPIO3 }
+#define AACI_IRQ { IRQ_PBA8_AACI }
+#define MMCI0_IRQ { IRQ_PBA8_MMCI0A, IRQ_PBA8_MMCI0B }
+#define KMI0_IRQ { IRQ_PBA8_KMI0 }
+#define KMI1_IRQ { IRQ_PBA8_KMI1 }
+#define PBA8_SMC_IRQ { }
+#define MPMC_IRQ { }
+#define PBA8_CLCD_IRQ { IRQ_PBA8_CLCD }
+#define DMAC_IRQ { IRQ_PBA8_DMAC }
+#define SCTL_IRQ { }
+#define PBA8_WATCHDOG_IRQ { IRQ_PBA8_WATCHDOG }
+#define PBA8_GPIO0_IRQ { IRQ_PBA8_GPIO0 }
+#define GPIO1_IRQ { IRQ_PBA8_GPIO1 }
+#define PBA8_RTC_IRQ { IRQ_PBA8_RTC }
+#define SCI_IRQ { IRQ_PBA8_SCI }
+#define PBA8_UART0_IRQ { IRQ_PBA8_UART0 }
+#define PBA8_UART1_IRQ { IRQ_PBA8_UART1 }
+#define PBA8_UART2_IRQ { IRQ_PBA8_UART2 }
+#define PBA8_UART3_IRQ { IRQ_PBA8_UART3 }
+#define PBA8_SSP_IRQ { IRQ_PBA8_SSP }
+
+/* FPGA Primecells */
+APB_DEVICE(aaci, "fpga:aaci", AACI, NULL);
+APB_DEVICE(mmc0, "fpga:mmc0", MMCI0, &realview_mmc0_plat_data);
+APB_DEVICE(kmi0, "fpga:kmi0", KMI0, NULL);
+APB_DEVICE(kmi1, "fpga:kmi1", KMI1, NULL);
+APB_DEVICE(uart3, "fpga:uart3", PBA8_UART3, NULL);
+
+/* DevChip Primecells */
+AHB_DEVICE(smc, "dev:smc", PBA8_SMC, NULL);
+AHB_DEVICE(sctl, "dev:sctl", SCTL, NULL);
+APB_DEVICE(wdog, "dev:wdog", PBA8_WATCHDOG, NULL);
+APB_DEVICE(gpio0, "dev:gpio0", PBA8_GPIO0, &gpio0_plat_data);
+APB_DEVICE(gpio1, "dev:gpio1", GPIO1, &gpio1_plat_data);
+APB_DEVICE(gpio2, "dev:gpio2", GPIO2, &gpio2_plat_data);
+APB_DEVICE(rtc, "dev:rtc", PBA8_RTC, NULL);
+APB_DEVICE(sci0, "dev:sci0", SCI, NULL);
+APB_DEVICE(uart0, "dev:uart0", PBA8_UART0, NULL);
+APB_DEVICE(uart1, "dev:uart1", PBA8_UART1, NULL);
+APB_DEVICE(uart2, "dev:uart2", PBA8_UART2, NULL);
+APB_DEVICE(ssp0, "dev:ssp0", PBA8_SSP, &ssp0_plat_data);
+
+/* Primecells on the NEC ISSP chip */
+AHB_DEVICE(clcd, "issp:clcd", PBA8_CLCD, &clcd_plat_data);
+AHB_DEVICE(dmac, "issp:dmac", DMAC, NULL);
+
+static struct amba_device *amba_devs[] __initdata = {
+ &dmac_device,
+ &uart0_device,
+ &uart1_device,
+ &uart2_device,
+ &uart3_device,
+ &smc_device,
+ &clcd_device,
+ &sctl_device,
+ &wdog_device,
+ &gpio0_device,
+ &gpio1_device,
+ &gpio2_device,
+ &rtc_device,
+ &sci0_device,
+ &ssp0_device,
+ &aaci_device,
+ &mmc0_device,
+ &kmi0_device,
+ &kmi1_device,
+};
+
+/*
+ * RealView PB-A8 platform devices
+ */
+static struct resource realview_pba8_flash_resource[] = {
+ [0] = {
+ .start = REALVIEW_PBA8_FLASH0_BASE,
+ .end = REALVIEW_PBA8_FLASH0_BASE + REALVIEW_PBA8_FLASH0_SIZE - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = REALVIEW_PBA8_FLASH1_BASE,
+ .end = REALVIEW_PBA8_FLASH1_BASE + REALVIEW_PBA8_FLASH1_SIZE - 1,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct resource realview_pba8_smsc911x_resources[] = {
+ [0] = {
+ .start = REALVIEW_PBA8_ETH_BASE,
+ .end = REALVIEW_PBA8_ETH_BASE + SZ_64K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = IRQ_PBA8_ETH,
+ .end = IRQ_PBA8_ETH,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct resource realview_pba8_isp1761_resources[] = {
+ [0] = {
+ .start = REALVIEW_PBA8_USB_BASE,
+ .end = REALVIEW_PBA8_USB_BASE + SZ_128K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = IRQ_PBA8_USB,
+ .end = IRQ_PBA8_USB,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct resource pmu_resource = {
+ .start = IRQ_PBA8_PMU,
+ .end = IRQ_PBA8_PMU,
+ .flags = IORESOURCE_IRQ,
+};
+
+static struct platform_device pmu_device = {
+ .name = "armv7-pmu",
+ .id = -1,
+ .num_resources = 1,
+ .resource = &pmu_resource,
+};
+
+static void __init gic_init_irq(void)
+{
+ /* ARM PB-A8 on-board GIC */
+ gic_init(0, IRQ_PBA8_GIC_START,
+ __io_address(REALVIEW_PBA8_GIC_DIST_BASE),
+ __io_address(REALVIEW_PBA8_GIC_CPU_BASE));
+}
+
+static void __init realview_pba8_timer_init(void)
+{
+ timer0_va_base = __io_address(REALVIEW_PBA8_TIMER0_1_BASE);
+ timer1_va_base = __io_address(REALVIEW_PBA8_TIMER0_1_BASE) + 0x20;
+ timer2_va_base = __io_address(REALVIEW_PBA8_TIMER2_3_BASE);
+ timer3_va_base = __io_address(REALVIEW_PBA8_TIMER2_3_BASE) + 0x20;
+
+ realview_clk_init(__io_address(REALVIEW_SYS_BASE), false);
+ realview_timer_init(IRQ_PBA8_TIMER0_1);
+}
+
+static void realview_pba8_restart(enum reboot_mode mode, const char *cmd)
+{
+ void __iomem *reset_ctrl = __io_address(REALVIEW_SYS_RESETCTL);
+ void __iomem *lock_ctrl = __io_address(REALVIEW_SYS_LOCK);
+
+ /*
+ * To reset, we hit the on-board reset register
+ * in the system FPGA
+ */
+ __raw_writel(REALVIEW_SYS_LOCK_VAL, lock_ctrl);
+ __raw_writel(0x0000, reset_ctrl);
+ __raw_writel(0x0004, reset_ctrl);
+ dsb();
+}
+
+static void __init realview_pba8_init(void)
+{
+ int i;
+
+ realview_flash_register(realview_pba8_flash_resource,
+ ARRAY_SIZE(realview_pba8_flash_resource));
+ realview_eth_register(NULL, realview_pba8_smsc911x_resources);
+ platform_device_register(&realview_i2c_device);
+ platform_device_register(&realview_cf_device);
+ platform_device_register(&realview_leds_device);
+ realview_usb_register(realview_pba8_isp1761_resources);
+ platform_device_register(&pmu_device);
+
+ for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
+ struct amba_device *d = amba_devs[i];
+ amba_device_register(d, &iomem_resource);
+ }
+}
+
+MACHINE_START(REALVIEW_PBA8, "ARM-RealView PB-A8")
+ /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
+ .atag_offset = 0x100,
+ .fixup = realview_fixup,
+ .map_io = realview_pba8_map_io,
+ .init_early = realview_init_early,
+ .init_irq = gic_init_irq,
+ .init_time = realview_pba8_timer_init,
+ .init_machine = realview_pba8_init,
+#ifdef CONFIG_ZONE_DMA
+ .dma_zone_size = SZ_256M,
+#endif
+ .restart = realview_pba8_restart,
+MACHINE_END