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Diffstat (limited to 'arch/arm/mach-realview/realview_eb.c')
-rw-r--r--arch/arm/mach-realview/realview_eb.c420
1 files changed, 364 insertions, 56 deletions
diff --git a/arch/arm/mach-realview/realview_eb.c b/arch/arm/mach-realview/realview_eb.c
index d4a586e38d5..739d4f11309 100644
--- a/arch/arm/mach-realview/realview_eb.c
+++ b/arch/arm/mach-realview/realview_eb.c
@@ -19,28 +19,33 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-#include <linux/config.h>
#include <linux/init.h>
#include <linux/platform_device.h>
-#include <linux/sysdev.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/hardware.h>
-#include <asm/io.h>
+#include <mach/hardware.h>
#include <asm/irq.h>
-#include <asm/leds.h>
#include <asm/mach-types.h>
-#include <asm/hardware/gic.h>
-#include <asm/hardware/icst307.h>
+#include <asm/pgtable.h>
+#include <asm/hardware/cache-l2x0.h>
+#include <asm/smp_twd.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
-#include <asm/mach/mmc.h>
+#include <asm/mach/time.h>
-#include <asm/arch/irqs.h>
+#include <mach/board-eb.h>
+#include <mach/irqs.h>
#include "core.h"
-#include "clock.h"
static struct map_desc realview_eb_io_desc[] __initdata = {
{
@@ -49,13 +54,13 @@ static struct map_desc realview_eb_io_desc[] __initdata = {
.length = SZ_4K,
.type = MT_DEVICE,
}, {
- .virtual = IO_ADDRESS(REALVIEW_GIC_CPU_BASE),
- .pfn = __phys_to_pfn(REALVIEW_GIC_CPU_BASE),
+ .virtual = IO_ADDRESS(REALVIEW_EB_GIC_CPU_BASE),
+ .pfn = __phys_to_pfn(REALVIEW_EB_GIC_CPU_BASE),
.length = SZ_4K,
.type = MT_DEVICE,
}, {
- .virtual = IO_ADDRESS(REALVIEW_GIC_DIST_BASE),
- .pfn = __phys_to_pfn(REALVIEW_GIC_DIST_BASE),
+ .virtual = IO_ADDRESS(REALVIEW_EB_GIC_DIST_BASE),
+ .pfn = __phys_to_pfn(REALVIEW_EB_GIC_DIST_BASE),
.length = SZ_4K,
.type = MT_DEVICE,
}, {
@@ -64,53 +69,129 @@ static struct map_desc realview_eb_io_desc[] __initdata = {
.length = SZ_4K,
.type = MT_DEVICE,
}, {
- .virtual = IO_ADDRESS(REALVIEW_TIMER0_1_BASE),
- .pfn = __phys_to_pfn(REALVIEW_TIMER0_1_BASE),
+ .virtual = IO_ADDRESS(REALVIEW_EB_TIMER0_1_BASE),
+ .pfn = __phys_to_pfn(REALVIEW_EB_TIMER0_1_BASE),
.length = SZ_4K,
.type = MT_DEVICE,
}, {
- .virtual = IO_ADDRESS(REALVIEW_TIMER2_3_BASE),
- .pfn = __phys_to_pfn(REALVIEW_TIMER2_3_BASE),
+ .virtual = IO_ADDRESS(REALVIEW_EB_TIMER2_3_BASE),
+ .pfn = __phys_to_pfn(REALVIEW_EB_TIMER2_3_BASE),
.length = SZ_4K,
.type = MT_DEVICE,
},
#ifdef CONFIG_DEBUG_LL
{
- .virtual = IO_ADDRESS(REALVIEW_UART0_BASE),
- .pfn = __phys_to_pfn(REALVIEW_UART0_BASE),
+ .virtual = IO_ADDRESS(REALVIEW_EB_UART0_BASE),
+ .pfn = __phys_to_pfn(REALVIEW_EB_UART0_BASE),
.length = SZ_4K,
.type = MT_DEVICE,
}
#endif
};
+static struct map_desc realview_eb11mp_io_desc[] __initdata = {
+ {
+ .virtual = IO_ADDRESS(REALVIEW_EB11MP_PRIV_MEM_BASE),
+ .pfn = __phys_to_pfn(REALVIEW_EB11MP_PRIV_MEM_BASE),
+ .length = REALVIEW_EB11MP_PRIV_MEM_SIZE,
+ .type = MT_DEVICE,
+ }, {
+ .virtual = IO_ADDRESS(REALVIEW_EB11MP_L220_BASE),
+ .pfn = __phys_to_pfn(REALVIEW_EB11MP_L220_BASE),
+ .length = SZ_8K,
+ .type = MT_DEVICE,
+ }
+};
+
static void __init realview_eb_map_io(void)
{
iotable_init(realview_eb_io_desc, ARRAY_SIZE(realview_eb_io_desc));
+ if (core_tile_eb11mp() || core_tile_a9mp())
+ iotable_init(realview_eb11mp_io_desc, ARRAY_SIZE(realview_eb11mp_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 EB AMBA devices
+ */
+
+/*
+ * These devices are connected via the core APB bridge
+ */
+#define GPIO2_IRQ { IRQ_EB_GPIO2 }
+#define GPIO3_IRQ { IRQ_EB_GPIO3 }
+
+#define AACI_IRQ { IRQ_EB_AACI }
+#define MMCI0_IRQ { IRQ_EB_MMCI0A, IRQ_EB_MMCI0B }
+#define KMI0_IRQ { IRQ_EB_KMI0 }
+#define KMI1_IRQ { IRQ_EB_KMI1 }
+
+/*
+ * These devices are connected directly to the multi-layer AHB switch
+ */
+#define EB_SMC_IRQ { }
+#define MPMC_IRQ { }
+#define EB_CLCD_IRQ { IRQ_EB_CLCD }
+#define DMAC_IRQ { IRQ_EB_DMA }
+
+/*
+ * These devices are connected via the core APB bridge
+ */
+#define SCTL_IRQ { }
+#define EB_WATCHDOG_IRQ { IRQ_EB_WDOG }
+#define EB_GPIO0_IRQ { IRQ_EB_GPIO0 }
+#define GPIO1_IRQ { IRQ_EB_GPIO1 }
+#define EB_RTC_IRQ { IRQ_EB_RTC }
+
+/*
+ * These devices are connected via the DMA APB bridge
+ */
+#define SCI_IRQ { IRQ_EB_SCI }
+#define EB_UART0_IRQ { IRQ_EB_UART0 }
+#define EB_UART1_IRQ { IRQ_EB_UART1 }
+#define EB_UART2_IRQ { IRQ_EB_UART2 }
+#define EB_UART3_IRQ { IRQ_EB_UART3 }
+#define EB_SSP_IRQ { IRQ_EB_SSP }
+
/* FPGA Primecells */
-AMBA_DEVICE(aaci, "fpga:04", AACI, NULL);
-AMBA_DEVICE(mmc0, "fpga:05", MMCI0, &realview_mmc0_plat_data);
-AMBA_DEVICE(kmi0, "fpga:06", KMI0, NULL);
-AMBA_DEVICE(kmi1, "fpga:07", KMI1, NULL);
-AMBA_DEVICE(uart3, "fpga:09", UART3, NULL);
+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", EB_UART3, NULL);
/* DevChip Primecells */
-AMBA_DEVICE(smc, "dev:00", SMC, NULL);
-AMBA_DEVICE(clcd, "dev:20", CLCD, &clcd_plat_data);
-AMBA_DEVICE(dmac, "dev:30", DMAC, NULL);
-AMBA_DEVICE(sctl, "dev:e0", SCTL, NULL);
-AMBA_DEVICE(wdog, "dev:e1", WATCHDOG, NULL);
-AMBA_DEVICE(gpio0, "dev:e4", GPIO0, NULL);
-AMBA_DEVICE(gpio1, "dev:e5", GPIO1, NULL);
-AMBA_DEVICE(gpio2, "dev:e6", GPIO2, NULL);
-AMBA_DEVICE(rtc, "dev:e8", RTC, NULL);
-AMBA_DEVICE(sci0, "dev:f0", SCI, NULL);
-AMBA_DEVICE(uart0, "dev:f1", UART0, NULL);
-AMBA_DEVICE(uart1, "dev:f2", UART1, NULL);
-AMBA_DEVICE(uart2, "dev:f3", UART2, NULL);
-AMBA_DEVICE(ssp0, "dev:f4", SSP, NULL);
+AHB_DEVICE(smc, "dev:smc", EB_SMC, NULL);
+AHB_DEVICE(clcd, "dev:clcd", EB_CLCD, &clcd_plat_data);
+AHB_DEVICE(dmac, "dev:dmac", DMAC, NULL);
+AHB_DEVICE(sctl, "dev:sctl", SCTL, NULL);
+APB_DEVICE(wdog, "dev:wdog", EB_WATCHDOG, NULL);
+APB_DEVICE(gpio0, "dev:gpio0", EB_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", EB_RTC, NULL);
+APB_DEVICE(sci0, "dev:sci0", SCI, NULL);
+APB_DEVICE(uart0, "dev:uart0", EB_UART0, NULL);
+APB_DEVICE(uart1, "dev:uart1", EB_UART1, NULL);
+APB_DEVICE(uart2, "dev:uart2", EB_UART2, NULL);
+APB_DEVICE(ssp0, "dev:ssp0", EB_SSP, &ssp0_plat_data);
static struct amba_device *amba_devs[] __initdata = {
&dmac_device,
@@ -134,43 +215,270 @@ static struct amba_device *amba_devs[] __initdata = {
&kmi1_device,
};
+/*
+ * RealView EB platform devices
+ */
+static struct resource realview_eb_flash_resource = {
+ .start = REALVIEW_EB_FLASH_BASE,
+ .end = REALVIEW_EB_FLASH_BASE + REALVIEW_EB_FLASH_SIZE - 1,
+ .flags = IORESOURCE_MEM,
+};
+
+static struct resource realview_eb_eth_resources[] = {
+ [0] = {
+ .start = REALVIEW_EB_ETH_BASE,
+ .end = REALVIEW_EB_ETH_BASE + SZ_64K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = IRQ_EB_ETH,
+ .end = IRQ_EB_ETH,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+/*
+ * Detect and register the correct Ethernet device. RealView/EB rev D
+ * platforms use the newer SMSC LAN9118 Ethernet chip
+ */
+static int eth_device_register(void)
+{
+ void __iomem *eth_addr = ioremap(REALVIEW_EB_ETH_BASE, SZ_4K);
+ const char *name = NULL;
+ u32 idrev;
+
+ if (!eth_addr)
+ return -ENOMEM;
+
+ idrev = readl(eth_addr + 0x50);
+ if ((idrev & 0xFFFF0000) != 0x01180000)
+ /* SMSC LAN9118 not present, use LAN91C111 instead */
+ name = "smc91x";
+
+ iounmap(eth_addr);
+ return realview_eth_register(name, realview_eb_eth_resources);
+}
+
+static struct resource realview_eb_isp1761_resources[] = {
+ [0] = {
+ .start = REALVIEW_EB_USB_BASE,
+ .end = REALVIEW_EB_USB_BASE + SZ_128K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = IRQ_EB_USB,
+ .end = IRQ_EB_USB,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct resource pmu_resources[] = {
+ [0] = {
+ .start = IRQ_EB11MP_PMU_CPU0,
+ .end = IRQ_EB11MP_PMU_CPU0,
+ .flags = IORESOURCE_IRQ,
+ },
+ [1] = {
+ .start = IRQ_EB11MP_PMU_CPU1,
+ .end = IRQ_EB11MP_PMU_CPU1,
+ .flags = IORESOURCE_IRQ,
+ },
+ [2] = {
+ .start = IRQ_EB11MP_PMU_CPU2,
+ .end = IRQ_EB11MP_PMU_CPU2,
+ .flags = IORESOURCE_IRQ,
+ },
+ [3] = {
+ .start = IRQ_EB11MP_PMU_CPU3,
+ .end = IRQ_EB11MP_PMU_CPU3,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device pmu_device = {
+ .name = "arm-pmu",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(pmu_resources),
+ .resource = pmu_resources,
+};
+
+static struct resource char_lcd_resources[] = {
+ {
+ .start = REALVIEW_CHAR_LCD_BASE,
+ .end = (REALVIEW_CHAR_LCD_BASE + SZ_4K - 1),
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = IRQ_EB_CHARLCD,
+ .end = IRQ_EB_CHARLCD,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device char_lcd_device = {
+ .name = "arm-charlcd",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(char_lcd_resources),
+ .resource = char_lcd_resources,
+};
+
static void __init gic_init_irq(void)
{
-#ifdef CONFIG_REALVIEW_MPCORE
- writel(0x0000a05f, __io_address(REALVIEW_SYS_LOCK));
- writel(0x008003c0, __io_address(REALVIEW_SYS_BASE) + 0xd8);
- writel(0x00000000, __io_address(REALVIEW_SYS_LOCK));
+ if (core_tile_eb11mp() || core_tile_a9mp()) {
+ unsigned int pldctrl;
+
+ /* new irq mode */
+ writel(0x0000a05f, __io_address(REALVIEW_SYS_LOCK));
+ pldctrl = readl(__io_address(REALVIEW_SYS_BASE) + REALVIEW_EB11MP_SYS_PLD_CTRL1);
+ pldctrl |= 0x00800000;
+ writel(pldctrl, __io_address(REALVIEW_SYS_BASE) + REALVIEW_EB11MP_SYS_PLD_CTRL1);
+ writel(0x00000000, __io_address(REALVIEW_SYS_LOCK));
+
+ /* core tile GIC, primary */
+ gic_init(0, 29, __io_address(REALVIEW_EB11MP_GIC_DIST_BASE),
+ __io_address(REALVIEW_EB11MP_GIC_CPU_BASE));
+
+#ifndef CONFIG_REALVIEW_EB_ARM11MP_REVB
+ /* board GIC, secondary */
+ gic_init(1, 96, __io_address(REALVIEW_EB_GIC_DIST_BASE),
+ __io_address(REALVIEW_EB_GIC_CPU_BASE));
+ gic_cascade_irq(1, IRQ_EB11MP_EB_IRQ1);
#endif
- gic_dist_init(__io_address(REALVIEW_GIC_DIST_BASE));
- gic_cpu_init(__io_address(REALVIEW_GIC_CPU_BASE));
+ } else {
+ /* board GIC, primary */
+ gic_init(0, 29, __io_address(REALVIEW_EB_GIC_DIST_BASE),
+ __io_address(REALVIEW_EB_GIC_CPU_BASE));
+ }
+}
+
+/*
+ * Fix up the IRQ numbers for the RealView EB/ARM11MPCore tile
+ */
+static void realview_eb11mp_fixup(void)
+{
+ /* AMBA devices */
+ dmac_device.irq[0] = IRQ_EB11MP_DMA;
+ uart0_device.irq[0] = IRQ_EB11MP_UART0;
+ uart1_device.irq[0] = IRQ_EB11MP_UART1;
+ uart2_device.irq[0] = IRQ_EB11MP_UART2;
+ uart3_device.irq[0] = IRQ_EB11MP_UART3;
+ clcd_device.irq[0] = IRQ_EB11MP_CLCD;
+ wdog_device.irq[0] = IRQ_EB11MP_WDOG;
+ gpio0_device.irq[0] = IRQ_EB11MP_GPIO0;
+ gpio1_device.irq[0] = IRQ_EB11MP_GPIO1;
+ gpio2_device.irq[0] = IRQ_EB11MP_GPIO2;
+ rtc_device.irq[0] = IRQ_EB11MP_RTC;
+ sci0_device.irq[0] = IRQ_EB11MP_SCI;
+ ssp0_device.irq[0] = IRQ_EB11MP_SSP;
+ aaci_device.irq[0] = IRQ_EB11MP_AACI;
+ mmc0_device.irq[0] = IRQ_EB11MP_MMCI0A;
+ mmc0_device.irq[1] = IRQ_EB11MP_MMCI0B;
+ kmi0_device.irq[0] = IRQ_EB11MP_KMI0;
+ kmi1_device.irq[0] = IRQ_EB11MP_KMI1;
+
+ /* platform devices */
+ realview_eb_eth_resources[1].start = IRQ_EB11MP_ETH;
+ realview_eb_eth_resources[1].end = IRQ_EB11MP_ETH;
+ realview_eb_isp1761_resources[1].start = IRQ_EB11MP_USB;
+ realview_eb_isp1761_resources[1].end = IRQ_EB11MP_USB;
+}
+
+#ifdef CONFIG_HAVE_ARM_TWD
+static DEFINE_TWD_LOCAL_TIMER(twd_local_timer,
+ REALVIEW_EB11MP_TWD_BASE,
+ IRQ_LOCALTIMER);
+
+static void __init realview_eb_twd_init(void)
+{
+ if (core_tile_eb11mp() || core_tile_a9mp()) {
+ int err = twd_local_timer_register(&twd_local_timer);
+ if (err)
+ pr_err("twd_local_timer_register failed %d\n", err);
+ }
+}
+#else
+#define realview_eb_twd_init() do { } while(0)
+#endif
+
+static void __init realview_eb_timer_init(void)
+{
+ unsigned int timer_irq;
+
+ timer0_va_base = __io_address(REALVIEW_EB_TIMER0_1_BASE);
+ timer1_va_base = __io_address(REALVIEW_EB_TIMER0_1_BASE) + 0x20;
+ timer2_va_base = __io_address(REALVIEW_EB_TIMER2_3_BASE);
+ timer3_va_base = __io_address(REALVIEW_EB_TIMER2_3_BASE) + 0x20;
+
+ if (core_tile_eb11mp() || core_tile_a9mp())
+ timer_irq = IRQ_EB11MP_TIMER0_1;
+ else
+ timer_irq = IRQ_EB_TIMER0_1;
+
+ realview_clk_init(__io_address(REALVIEW_SYS_BASE), false);
+ realview_timer_init(timer_irq);
+ realview_eb_twd_init();
+}
+
+static void realview_eb_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);
+ if (core_tile_eb11mp())
+ __raw_writel(0x0008, reset_ctrl);
+ dsb();
}
static void __init realview_eb_init(void)
{
int i;
- clk_register(&realview_clcd_clk);
+ if (core_tile_eb11mp() || core_tile_a9mp()) {
+ realview_eb11mp_fixup();
- platform_device_register(&realview_flash_device);
- platform_device_register(&realview_smc91x_device);
+#ifdef CONFIG_CACHE_L2X0
+ /*
+ * The PL220 needs to be manually configured as the hardware
+ * doesn't report the correct sizes.
+ * 1MB (128KB/way), 8-way associativity, event monitor and
+ * parity enabled, ignore share bit, no force write allocate
+ * Bits: .... ...0 0111 1001 0000 .... .... ....
+ */
+ l2x0_init(__io_address(REALVIEW_EB11MP_L220_BASE), 0x00790000, 0xfe000fff);
+#endif
+ platform_device_register(&pmu_device);
+ }
+
+ realview_flash_register(&realview_eb_flash_resource, 1);
+ platform_device_register(&realview_i2c_device);
+ platform_device_register(&char_lcd_device);
+ platform_device_register(&realview_leds_device);
+ eth_device_register();
+ realview_usb_register(realview_eb_isp1761_resources);
for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
struct amba_device *d = amba_devs[i];
amba_device_register(d, &iomem_resource);
}
-
-#ifdef CONFIG_LEDS
- leds_event = realview_leds_event;
-#endif
}
MACHINE_START(REALVIEW_EB, "ARM-RealView EB")
/* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
- .phys_io = REALVIEW_UART0_BASE,
- .io_pg_offst = (IO_ADDRESS(REALVIEW_UART0_BASE) >> 18) & 0xfffc,
- .boot_params = 0x00000100,
+ .atag_offset = 0x100,
+ .smp = smp_ops(realview_smp_ops),
+ .fixup = realview_fixup,
.map_io = realview_eb_map_io,
+ .init_early = realview_init_early,
.init_irq = gic_init_irq,
- .timer = &realview_timer,
+ .init_time = realview_eb_timer_init,
.init_machine = realview_eb_init,
+#ifdef CONFIG_ZONE_DMA
+ .dma_zone_size = SZ_256M,
+#endif
+ .restart = realview_eb_restart,
MACHINE_END
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-14 12:04:03 +0000