From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/arch/avr32/boards/mimc200/flash.c | 143 +++++++++++++++++++++++++++++++ 1 file changed, 143 insertions(+) create mode 100644 kernel/arch/avr32/boards/mimc200/flash.c (limited to 'kernel/arch/avr32/boards/mimc200/flash.c') diff --git a/kernel/arch/avr32/boards/mimc200/flash.c b/kernel/arch/avr32/boards/mimc200/flash.c new file mode 100644 index 000000000..d83d650fc --- /dev/null +++ b/kernel/arch/avr32/boards/mimc200/flash.c @@ -0,0 +1,143 @@ +/* + * MIMC200 board-specific flash initialization + * + * Copyright (C) 2008 Mercury IMC Ltd + * + * 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 +#include +#include +#include +#include + +#include + +static struct smc_timing flash_timing __initdata = { + .ncs_read_setup = 0, + .nrd_setup = 15, + .ncs_write_setup = 0, + .nwe_setup = 0, + + .ncs_read_pulse = 115, + .nrd_pulse = 110, + .ncs_write_pulse = 60, + .nwe_pulse = 60, + + .read_cycle = 115, + .write_cycle = 100, +}; + +static struct smc_config flash_config __initdata = { + .bus_width = 2, + .nrd_controlled = 1, + .nwe_controlled = 1, + .byte_write = 1, +}; + +/* system flash definition */ + +static struct mtd_partition flash_parts_system[] = { + { + .name = "u-boot", + .offset = 0x00000000, + .size = 0x00020000, /* 128 KiB */ + .mask_flags = MTD_WRITEABLE, + }, + { + .name = "root", + .offset = 0x00020000, + .size = 0x007c0000, + }, + { + .name = "splash", + .offset = 0x007e0000, + .size = 0x00010000, /* 64KiB */ + }, + { + .name = "env", + .offset = 0x007f0000, + .size = 0x00010000, + .mask_flags = MTD_WRITEABLE, + }, +}; + +static struct physmap_flash_data flash_system = { + .width = 2, + .nr_parts = ARRAY_SIZE(flash_parts_system), + .parts = flash_parts_system, +}; + +static struct resource flash_resource_system = { + .start = 0x00000000, + .end = 0x007fffff, + .flags = IORESOURCE_MEM, +}; + +static struct platform_device flash_device_system = { + .name = "physmap-flash", + .id = 0, + .resource = &flash_resource_system, + .num_resources = 1, + .dev = { + .platform_data = &flash_system, + }, +}; + +/* data flash definition */ + +static struct mtd_partition flash_parts_data[] = { + { + .name = "data", + .offset = 0x00000000, + .size = 0x00800000, + }, +}; + +static struct physmap_flash_data flash_data = { + .width = 2, + .nr_parts = ARRAY_SIZE(flash_parts_data), + .parts = flash_parts_data, +}; + +static struct resource flash_resource_data = { + .start = 0x08000000, + .end = 0x087fffff, + .flags = IORESOURCE_MEM, +}; + +static struct platform_device flash_device_data = { + .name = "physmap-flash", + .id = 1, + .resource = &flash_resource_data, + .num_resources = 1, + .dev = { + .platform_data = &flash_data, + }, +}; + +/* This needs to be called after the SMC has been initialized */ +static int __init mimc200_flash_init(void) +{ + int ret; + + smc_set_timing(&flash_config, &flash_timing); + ret = smc_set_configuration(0, &flash_config); + if (ret < 0) { + printk(KERN_ERR "mimc200: failed to set 'System' NOR flash timing\n"); + return ret; + } + ret = smc_set_configuration(1, &flash_config); + if (ret < 0) { + printk(KERN_ERR "mimc200: failed to set 'Data' NOR flash timing\n"); + return ret; + } + + platform_device_register(&flash_device_system); + platform_device_register(&flash_device_data); + + return 0; +} +device_initcall(mimc200_flash_init); -- cgit 1.2.3-korg