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70bb62f8ec
linux_dsm_epyc7002/arch/arm/mach-realview/realview_eb.c
Catalin Marinas 70bb62f8ec RealView: Allow PHYS_OFFSET at 0x70000000 
RealView boards like PB11MPCore have 512MB of RAM available contiguously
at 0x70000000. Half of the memory is mirrored at 0x00000000 for
backwards compatibility. This patch adds the
CONFIG_REALVIEW_HIGH_PHYS_OFFSET option option to change the physical
base address so that the full amount of RAM is available to Linux. Note
that the EB board has 256MB of RAM also mirrored at 0x70000000, the only
board without this feature being PB1176.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2008-12-01 14:54:55 +00:00

401 lines
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/*
* linux/arch/arm/mach-realview/realview_eb.c
*
* Copyright (C) 2004 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/sysdev.h>
#include <linux/amba/bus.h>
#include <linux/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/hardware/cache-l2x0.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/mmc.h>
#include <asm/mach/time.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 = {
{
.virtual = IO_ADDRESS(REALVIEW_SYS_BASE),
.pfn = __phys_to_pfn(REALVIEW_SYS_BASE),
.length = SZ_4K,
.type = MT_DEVICE,
}, {
.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_EB_GIC_DIST_BASE),
.pfn = __phys_to_pfn(REALVIEW_EB_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_EB_TIMER0_1_BASE),
.pfn = __phys_to_pfn(REALVIEW_EB_TIMER0_1_BASE),
.length = SZ_4K,
.type = MT_DEVICE,
}, {
.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_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_GIC_CPU_BASE),
.pfn = __phys_to_pfn(REALVIEW_EB11MP_GIC_CPU_BASE),
.length = SZ_4K,
.type = MT_DEVICE,
}, {
.virtual = IO_ADDRESS(REALVIEW_EB11MP_GIC_DIST_BASE),
.pfn = __phys_to_pfn(REALVIEW_EB11MP_GIC_DIST_BASE),
.length = SZ_4K,
.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())
iotable_init(realview_eb11mp_io_desc, ARRAY_SIZE(realview_eb11mp_io_desc));
}
/*
* RealView EB AMBA devices
*/
/*
* These devices are connected via the core APB bridge
*/
#define GPIO2_IRQ { IRQ_EB_GPIO2, NO_IRQ }
#define GPIO2_DMA { 0, 0 }
#define GPIO3_IRQ { IRQ_EB_GPIO3, NO_IRQ }
#define GPIO3_DMA { 0, 0 }
#define AACI_IRQ { IRQ_EB_AACI, NO_IRQ }
#define AACI_DMA { 0x80, 0x81 }
#define MMCI0_IRQ { IRQ_EB_MMCI0A, IRQ_EB_MMCI0B }
#define MMCI0_DMA { 0x84, 0 }
#define KMI0_IRQ { IRQ_EB_KMI0, NO_IRQ }
#define KMI0_DMA { 0, 0 }
#define KMI1_IRQ { IRQ_EB_KMI1, NO_IRQ }
#define KMI1_DMA { 0, 0 }
/*
* These devices are connected directly to the multi-layer AHB switch
*/
#define EB_SMC_IRQ { NO_IRQ, NO_IRQ }
#define EB_SMC_DMA { 0, 0 }
#define MPMC_IRQ { NO_IRQ, NO_IRQ }
#define MPMC_DMA { 0, 0 }
#define EB_CLCD_IRQ { IRQ_EB_CLCD, NO_IRQ }
#define EB_CLCD_DMA { 0, 0 }
#define DMAC_IRQ { IRQ_EB_DMA, NO_IRQ }
#define DMAC_DMA { 0, 0 }
/*
* These devices are connected via the core APB bridge
*/
#define SCTL_IRQ { NO_IRQ, NO_IRQ }
#define SCTL_DMA { 0, 0 }
#define EB_WATCHDOG_IRQ { IRQ_EB_WDOG, NO_IRQ }
#define EB_WATCHDOG_DMA { 0, 0 }
#define EB_GPIO0_IRQ { IRQ_EB_GPIO0, NO_IRQ }
#define EB_GPIO0_DMA { 0, 0 }
#define GPIO1_IRQ { IRQ_EB_GPIO1, NO_IRQ }
#define GPIO1_DMA { 0, 0 }
#define EB_RTC_IRQ { IRQ_EB_RTC, NO_IRQ }
#define EB_RTC_DMA { 0, 0 }
/*
* These devices are connected via the DMA APB bridge
*/
#define SCI_IRQ { IRQ_EB_SCI, NO_IRQ }
#define SCI_DMA { 7, 6 }
#define EB_UART0_IRQ { IRQ_EB_UART0, NO_IRQ }
#define EB_UART0_DMA { 15, 14 }
#define EB_UART1_IRQ { IRQ_EB_UART1, NO_IRQ }
#define EB_UART1_DMA { 13, 12 }
#define EB_UART2_IRQ { IRQ_EB_UART2, NO_IRQ }
#define EB_UART2_DMA { 11, 10 }
#define EB_UART3_IRQ { IRQ_EB_UART3, NO_IRQ }
#define EB_UART3_DMA { 0x86, 0x87 }
#define EB_SSP_IRQ { IRQ_EB_SSP, NO_IRQ }
#define EB_SSP_DMA { 9, 8 }
/* 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", EB_UART3, NULL);
/* DevChip Primecells */
AMBA_DEVICE(smc, "dev:00", EB_SMC, NULL);
AMBA_DEVICE(clcd, "dev:20", EB_CLCD, &clcd_plat_data);
AMBA_DEVICE(dmac, "dev:30", DMAC, NULL);
AMBA_DEVICE(sctl, "dev:e0", SCTL, NULL);
AMBA_DEVICE(wdog, "dev:e1", EB_WATCHDOG, NULL);
AMBA_DEVICE(gpio0, "dev:e4", EB_GPIO0, NULL);
AMBA_DEVICE(gpio1, "dev:e5", GPIO1, NULL);
AMBA_DEVICE(gpio2, "dev:e6", GPIO2, NULL);
AMBA_DEVICE(rtc, "dev:e8", EB_RTC, NULL);
AMBA_DEVICE(sci0, "dev:f0", SCI, NULL);
AMBA_DEVICE(uart0, "dev:f1", EB_UART0, NULL);
AMBA_DEVICE(uart1, "dev:f2", EB_UART1, NULL);
AMBA_DEVICE(uart2, "dev:f3", EB_UART2, NULL);
AMBA_DEVICE(ssp0, "dev:f4", EB_SSP, 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 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,
},
};
static struct platform_device realview_eb_eth_device = {
.id = 0,
.num_resources = ARRAY_SIZE(realview_eb_eth_resources),
.resource = realview_eb_eth_resources,
};
/*
* 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);
u32 idrev;
if (!eth_addr)
return -ENOMEM;
idrev = readl(eth_addr + 0x50);
if ((idrev & 0xFFFF0000) == 0x01180000)
/* SMSC LAN9118 chip present */
realview_eb_eth_device.name = "smc911x";
else
/* SMSC 91C111 chip present */
realview_eb_eth_device.name = "smc91x";
iounmap(eth_addr);
return platform_device_register(&realview_eb_eth_device);
}
static void __init gic_init_irq(void)
{
if (core_tile_eb11mp()) {
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_cpu_base_addr = __io_address(REALVIEW_EB11MP_GIC_CPU_BASE);
gic_dist_init(0, __io_address(REALVIEW_EB11MP_GIC_DIST_BASE), 29);
gic_cpu_init(0, gic_cpu_base_addr);
#ifndef CONFIG_REALVIEW_EB_ARM11MP_REVB
/* board GIC, secondary */
gic_dist_init(1, __io_address(REALVIEW_EB_GIC_DIST_BASE), 64);
gic_cpu_init(1, __io_address(REALVIEW_EB_GIC_CPU_BASE));
gic_cascade_irq(1, IRQ_EB11MP_EB_IRQ1);
#endif
} else {
/* board GIC, primary */
gic_cpu_base_addr = __io_address(REALVIEW_EB_GIC_CPU_BASE);
gic_dist_init(0, __io_address(REALVIEW_EB_GIC_DIST_BASE), 29);
gic_cpu_init(0, gic_cpu_base_addr);
}
}
/*
* 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;
}
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()) {
#ifdef CONFIG_LOCAL_TIMERS
twd_base_addr = __io_address(REALVIEW_EB11MP_TWD_BASE);
twd_size = REALVIEW_EB11MP_TWD_SIZE;
#endif
timer_irq = IRQ_EB11MP_TIMER0_1;
} else
timer_irq = IRQ_EB_TIMER0_1;
realview_timer_init(timer_irq);
}
static struct sys_timer realview_eb_timer = {
.init = realview_eb_timer_init,
};
static void __init realview_eb_init(void)
{
int i;
if (core_tile_eb11mp()) {
realview_eb11mp_fixup();
#ifdef CONFIG_CACHE_L2X0
/* 1MB (128KB/way), 8-way associativity, evmon/parity/share enabled
* Bits: .... ...0 0111 1001 0000 .... .... .... */
l2x0_init(__io_address(REALVIEW_EB11MP_L220_BASE), 0x00790000, 0xfe000fff);
#endif
}
clk_register(&realview_clcd_clk);
realview_flash_register(&realview_eb_flash_resource, 1);
platform_device_register(&realview_i2c_device);
eth_device_register();
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_EB_UART0_BASE,
.io_pg_offst = (IO_ADDRESS(REALVIEW_EB_UART0_BASE) >> 18) & 0xfffc,
.boot_params = PHYS_OFFSET + 0x00000100,
.map_io = realview_eb_map_io,
.init_irq = gic_init_irq,
.timer = &realview_eb_timer,
.init_machine = realview_eb_init,
MACHINE_END
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