linux/arch/mips/cavium-octeon/flash_setup.c
David Daney 5b3b16880f MIPS: Add Cavium OCTEON processor support files to arch/mips/cavium-octeon.
These are the rest of the new files needed to add OCTEON processor
support to the Linux kernel.  Other than Makefile and Kconfig which
should be obvious, we have:

csrc-octeon.c   -- Clock source driver for OCTEON.
dma-octeon.c    -- Helper functions for mapping DMA memory.
flash_setup.c   -- Register on-board flash with the MTD subsystem.
octeon-irq.c    -- OCTEON interrupt controller managment.
octeon-memcpy.S -- Optimized memcpy() implementation.
serial.c        -- Register 8250 platform driver and early console.
setup.c         -- Early architecture initialization.
smp.c           -- OCTEON SMP support.
octeon_switch.S -- Scheduler context switch for OCTEON.
c-octeon.c      -- OCTEON cache controller support.
cex-oct.S       -- OCTEON cache exception handler.

asm/mach-cavium-octeon/*.h -- Architecture include files.

Signed-off-by: Tomaso Paoletti <tpaoletti@caviumnetworks.com>
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

 create mode 100644 arch/mips/cavium-octeon/Kconfig
 create mode 100644 arch/mips/cavium-octeon/Makefile
 create mode 100644 arch/mips/cavium-octeon/csrc-octeon.c
 create mode 100644 arch/mips/cavium-octeon/dma-octeon.c
 create mode 100644 arch/mips/cavium-octeon/flash_setup.c
 create mode 100644 arch/mips/cavium-octeon/octeon-irq.c
 create mode 100644 arch/mips/cavium-octeon/octeon-memcpy.S
 create mode 100644 arch/mips/cavium-octeon/serial.c
 create mode 100644 arch/mips/cavium-octeon/setup.c
 create mode 100644 arch/mips/cavium-octeon/smp.c
 create mode 100644 arch/mips/include/asm/mach-cavium-octeon/cpu-feature-overrides.h
 create mode 100644 arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
 create mode 100644 arch/mips/include/asm/mach-cavium-octeon/irq.h
 create mode 100644 arch/mips/include/asm/mach-cavium-octeon/kernel-entry-init.h
 create mode 100644 arch/mips/include/asm/mach-cavium-octeon/war.h
 create mode 100644 arch/mips/include/asm/octeon/octeon.h
 create mode 100644 arch/mips/kernel/octeon_switch.S
 create mode 100644 arch/mips/mm/c-octeon.c
 create mode 100644 arch/mips/mm/cex-oct.S
2009-01-11 09:57:21 +00:00

84 lines
2.1 KiB
C

/*
* Octeon Bootbus flash setup
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2007, 2008 Cavium Networks
*/
#include <linux/kernel.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/map.h>
#include <linux/mtd/partitions.h>
#include <asm/octeon/octeon.h>
static struct map_info flash_map;
static struct mtd_info *mymtd;
#ifdef CONFIG_MTD_PARTITIONS
static int nr_parts;
static struct mtd_partition *parts;
static const char *part_probe_types[] = {
"cmdlinepart",
#ifdef CONFIG_MTD_REDBOOT_PARTS
"RedBoot",
#endif
NULL
};
#endif
/**
* Module/ driver initialization.
*
* Returns Zero on success
*/
static int __init flash_init(void)
{
/*
* Read the bootbus region 0 setup to determine the base
* address of the flash.
*/
union cvmx_mio_boot_reg_cfgx region_cfg;
region_cfg.u64 = cvmx_read_csr(CVMX_MIO_BOOT_REG_CFGX(0));
if (region_cfg.s.en) {
/*
* The bootloader always takes the flash and sets its
* address so the entire flash fits below
* 0x1fc00000. This way the flash aliases to
* 0x1fc00000 for booting. Software can access the
* full flash at the true address, while core boot can
* access 4MB.
*/
/* Use this name so old part lines work */
flash_map.name = "phys_mapped_flash";
flash_map.phys = region_cfg.s.base << 16;
flash_map.size = 0x1fc00000 - flash_map.phys;
flash_map.bankwidth = 1;
flash_map.virt = ioremap(flash_map.phys, flash_map.size);
pr_notice("Bootbus flash: Setting flash for %luMB flash at "
"0x%08lx\n", flash_map.size >> 20, flash_map.phys);
simple_map_init(&flash_map);
mymtd = do_map_probe("cfi_probe", &flash_map);
if (mymtd) {
mymtd->owner = THIS_MODULE;
#ifdef CONFIG_MTD_PARTITIONS
nr_parts = parse_mtd_partitions(mymtd,
part_probe_types,
&parts, 0);
if (nr_parts > 0)
add_mtd_partitions(mymtd, parts, nr_parts);
else
add_mtd_device(mymtd);
#else
add_mtd_device(mymtd);
#endif
} else {
pr_err("Failed to register MTD device for flash\n");
}
}
return 0;
}
late_initcall(flash_init);