diff options
author | Arnaud Patard <arnaud.patard@rtp-net.org> | 2007-07-15 19:12:23 (GMT) |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2007-07-20 08:35:35 (GMT) |
commit | a8135fcfd0431eda3653c7069e7aefc8674fdfbe (patch) | |
tree | cd32567c33525faf5de4424c7ffa1b13f84110b1 /arch/arm | |
parent | 9a79b2274186fade17134929d4f85b70d59a3840 (diff) | |
download | linux-fsl-qoriq-a8135fcfd0431eda3653c7069e7aefc8674fdfbe.tar.xz |
[ARM] 4476/1: EM7210/SS4000E support
This patch adds the basic support for the em7210 board. It is similar to
the iq31244 board and can be found on Intel "Baxter Creek" ss4000e nas.
Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm')
-rw-r--r-- | arch/arm/mach-iop32x/Kconfig | 7 | ||||
-rw-r--r-- | arch/arm/mach-iop32x/Makefile | 1 | ||||
-rw-r--r-- | arch/arm/mach-iop32x/em7210.c | 202 | ||||
-rw-r--r-- | arch/arm/mach-iop32x/irq.c | 3 |
4 files changed, 212 insertions, 1 deletions
diff --git a/arch/arm/mach-iop32x/Kconfig b/arch/arm/mach-iop32x/Kconfig index 9bb02b6..dbe07c9 100644 --- a/arch/arm/mach-iop32x/Kconfig +++ b/arch/arm/mach-iop32x/Kconfig @@ -42,6 +42,13 @@ config IOP3XX_ATU Say N if the IOP is an add in card, the host system owns the PCI bus in this case. +config MACH_EM7210 + bool "Enable support for the Lanner EM7210" + help + Say Y here if you want to run your kernel on the Lanner EM7210 + board. Say also Y here if you have a SS4000e Baxter Creek NAS + appliance." + endmenu endif diff --git a/arch/arm/mach-iop32x/Makefile b/arch/arm/mach-iop32x/Makefile index 7b05b37..cfdf8a1 100644 --- a/arch/arm/mach-iop32x/Makefile +++ b/arch/arm/mach-iop32x/Makefile @@ -11,3 +11,4 @@ obj-$(CONFIG_MACH_GLANTANK) += glantank.o obj-$(CONFIG_ARCH_IQ80321) += iq80321.o obj-$(CONFIG_ARCH_IQ31244) += iq31244.o obj-$(CONFIG_MACH_N2100) += n2100.o +obj-$(CONFIG_MACH_EM7210) += em7210.o diff --git a/arch/arm/mach-iop32x/em7210.c b/arch/arm/mach-iop32x/em7210.c new file mode 100644 index 0000000..f036205 --- /dev/null +++ b/arch/arm/mach-iop32x/em7210.c @@ -0,0 +1,202 @@ +/* + * arch/arm/mach-iop32x/em7210.c + * + * Board support code for the Lanner EM7210 platforms. + * + * Based on arch/arm/mach-iop32x/iq31244.c file. + * + * Copyright (C) 2007 Arnaud Patard <arnaud.patard@rtp-net.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#include <linux/mm.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/pci.h> +#include <linux/pm.h> +#include <linux/serial_core.h> +#include <linux/serial_8250.h> +#include <linux/mtd/physmap.h> +#include <linux/platform_device.h> +#include <asm/hardware.h> +#include <linux/io.h> +#include <linux/irq.h> +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <asm/mach/pci.h> +#include <asm/mach/time.h> +#include <asm/mach-types.h> +#include <asm/arch/time.h> + +static void __init em7210_timer_init(void) +{ + /* http://www.kwaak.net/fotos/fotos-nas/slide_24.html */ + /* 33.333 MHz crystal. */ + iop_init_time(200000000); +} + +static struct sys_timer em7210_timer = { + .init = em7210_timer_init, + .offset = iop_gettimeoffset, +}; + + +/* + * EM7210 I/O + */ +static struct map_desc em7210_io_desc[] __initdata = { + { /* on-board devices */ + .virtual = IQ31244_UART, + .pfn = __phys_to_pfn(IQ31244_UART), + .length = 0x00100000, + .type = MT_DEVICE, + }, +}; + +void __init em7210_map_io(void) +{ + iop3xx_map_io(); + iotable_init(em7210_io_desc, ARRAY_SIZE(em7210_io_desc)); +} + + +/* + * EM7210 PCI + */ +#define INTA IRQ_IOP32X_XINT0 +#define INTB IRQ_IOP32X_XINT1 +#define INTC IRQ_IOP32X_XINT2 +#define INTD IRQ_IOP32X_XINT3 + +static int __init +em7210_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +{ + static int pci_irq_table[][4] = { + /* + * PCI IDSEL/INTPIN->INTLINE + * A B C D + */ + {INTB, INTB, INTB, INTB}, /* console / uart */ + {INTA, INTA, INTA, INTA}, /* 1st 82541 */ + {INTD, INTD, INTD, INTD}, /* 2nd 82541 */ + {INTC, INTC, INTC, INTC}, /* GD31244 */ + {INTD, INTA, INTA, INTA}, /* mini-PCI */ + {INTD, INTC, INTA, INTA}, /* NEC USB */ + }; + + if (pin < 1 || pin > 4) + return -1; + + return pci_irq_table[slot % 6][pin - 1]; +} + +static struct hw_pci em7210_pci __initdata = { + .swizzle = pci_std_swizzle, + .nr_controllers = 1, + .setup = iop3xx_pci_setup, + .preinit = iop3xx_pci_preinit, + .scan = iop3xx_pci_scan_bus, + .map_irq = em7210_pci_map_irq, +}; + +static int __init em7210_pci_init(void) +{ + if (machine_is_em7210()) + pci_common_init(&em7210_pci); + + return 0; +} + +subsys_initcall(em7210_pci_init); + + +/* + * EM7210 Flash + */ +static struct physmap_flash_data em7210_flash_data = { + .width = 2, +}; + +static struct resource em7210_flash_resource = { + .start = 0xf0000000, + .end = 0xf1ffffff, + .flags = IORESOURCE_MEM, +}; + +static struct platform_device em7210_flash_device = { + .name = "physmap-flash", + .id = 0, + .dev = { + .platform_data = &em7210_flash_data, + }, + .num_resources = 1, + .resource = &em7210_flash_resource, +}; + + +/* + * EM7210 UART + * The physical address of the serial port is 0xfe800000, + * so it can be used for physical and virtual address. + */ +static struct plat_serial8250_port em7210_serial_port[] = { + { + .mapbase = IQ31244_UART, + .membase = (char *)IQ31244_UART, + .irq = IRQ_IOP32X_XINT1, + .flags = UPF_SKIP_TEST, + .iotype = UPIO_MEM, + .regshift = 0, + .uartclk = 1843200, + }, + { }, +}; + +static struct resource em7210_uart_resource = { + .start = IQ31244_UART, + .end = IQ31244_UART + 7, + .flags = IORESOURCE_MEM, +}; + +static struct platform_device em7210_serial_device = { + .name = "serial8250", + .id = PLAT8250_DEV_PLATFORM, + .dev = { + .platform_data = em7210_serial_port, + }, + .num_resources = 1, + .resource = &em7210_uart_resource, +}; + +void em7210_power_off(void) +{ + *IOP3XX_GPOE &= 0xfe; + *IOP3XX_GPOD |= 0x01; +} + +static void __init em7210_init_machine(void) +{ + platform_device_register(&em7210_serial_device); + platform_device_register(&iop3xx_i2c0_device); + platform_device_register(&iop3xx_i2c1_device); + platform_device_register(&em7210_flash_device); + platform_device_register(&iop3xx_dma_0_channel); + platform_device_register(&iop3xx_dma_1_channel); + + + pm_power_off = em7210_power_off; +} + +MACHINE_START(EM7210, "Lanner EM7210") + .phys_io = IQ31244_UART, + .io_pg_offst = ((IQ31244_UART) >> 18) & 0xfffc, + .boot_params = 0xa0000100, + .map_io = em7210_map_io, + .init_irq = iop32x_init_irq, + .timer = &em7210_timer, + .init_machine = em7210_init_machine, +MACHINE_END diff --git a/arch/arm/mach-iop32x/irq.c b/arch/arm/mach-iop32x/irq.c index c971171..55cf016 100644 --- a/arch/arm/mach-iop32x/irq.c +++ b/arch/arm/mach-iop32x/irq.c @@ -63,7 +63,8 @@ void __init iop32x_init_irq(void) if (machine_is_glantank() || machine_is_iq80321() || machine_is_iq31244() || - machine_is_n2100()) + machine_is_n2100() || + machine_is_em7210()) *IOP3XX_PCIIRSR = 0x0f; for (i = 0; i < NR_IRQS; i++) { |