W: http://www.linux4sam.org
S: Supported
F: arch/arm/mach-at91/
+F: include/soc/at91/
F: arch/arm/boot/dts/at91*.dts
F: arch/arm/boot/dts/at91*.dtsi
F: arch/arm/boot/dts/sama*.dts
F: drivers/*/*/*rockchip*
F: sound/soc/rockchip/
-ARM/SAMSUNG ARM ARCHITECTURES
-M: Ben Dooks <ben-linux@fluff.org>
-M: Kukjin Kim <kgene.kim@samsung.com>
+ARM/SAMSUNG EXYNOS ARM ARCHITECTURES
+M: Kukjin Kim <kgene@kernel.org>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
L: linux-samsung-soc@vger.kernel.org (moderated for non-subscribers)
-W: http://www.fluff.org/ben/linux/
S: Maintained
F: arch/arm/boot/dts/s3c*
F: arch/arm/boot/dts/exynos*
F: arch/arm/plat-samsung/
F: arch/arm/mach-s3c24*/
F: arch/arm/mach-s3c64xx/
+F: arch/arm/mach-s5p*/
+F: arch/arm/mach-exynos*/
F: drivers/*/*s3c2410*
F: drivers/*/*/*s3c2410*
F: drivers/spi/spi-s3c*
F: sound/soc/samsung/*
-
-ARM/S5P EXYNOS ARM ARCHITECTURES
-M: Kukjin Kim <kgene.kim@samsung.com>
-L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-L: linux-samsung-soc@vger.kernel.org (moderated for non-subscribers)
-S: Maintained
-F: arch/arm/mach-s5p*/
-F: arch/arm/mach-exynos*/
N: exynos
ARM/SAMSUNG MOBILE MACHINE SUPPORT
F: arch/arm/configs/ape6evm_defconfig
F: arch/arm/configs/armadillo800eva_defconfig
F: arch/arm/configs/bockw_defconfig
-F: arch/arm/configs/koelsch_defconfig
F: arch/arm/configs/kzm9g_defconfig
F: arch/arm/configs/lager_defconfig
F: arch/arm/configs/mackerel_defconfig
F: arch/arm/configs/marzen_defconfig
F: arch/arm/configs/shmobile_defconfig
+F: arch/arm/include/debug/renesas-scif.S
F: arch/arm/mach-shmobile/
F: drivers/sh/
F: drivers/usb/dwc3/dwc3-st.c
F: drivers/usb/host/ehci-st.c
F: drivers/usb/host/ohci-st.c
+F: drivers/ata/ahci_st.c
ARM/TECHNOLOGIC SYSTEMS TS7250 MACHINE SUPPORT
M: Lennert Buytenhek <kernel@wantstofly.org>
F: drivers/clk/ux500/
F: include/linux/platform_data/clk-ux500.h
+ARM/VERSATILE EXPRESS PLATFORM
+M: Liviu Dudau <liviu.dudau@arm.com>
+M: Sudeep Holla <sudeep.holla@arm.com>
+M: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
+L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S: Maintained
+F: arch/arm/boot/dts/vexpress*
+F: arch/arm/mach-vexpress/
+F: */*/vexpress*
+F: */*/*/vexpress*
+F: drivers/clk/versatile/clk-vexpress-osc.c
+F: drivers/clocksource/versatile.c
+
ARM/VFP SUPPORT
M: Russell King <linux@arm.linux.org.uk>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
ARM/ZYNQ ARCHITECTURE
M: Michal Simek <michal.simek@xilinx.com>
+R: Sören Brinkmann <soren.brinkmann@xilinx.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
W: http://wiki.xilinx.com
T: git git://git.xilinx.com/linux-xlnx.git
F: net/ax25/
AZ6007 DVB DRIVER
-M: Mauro Carvalho Chehab <m.chehab@samsung.com>
+M: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
L: linux-media@vger.kernel.org
W: http://linuxtv.org
T: git git://linuxtv.org/media_tree.git
BROADCOM BCM2835 ARM ARCHITECTURE
M: Stephen Warren <swarren@wwwdotorg.org>
+M: Lee Jones <lee@kernel.org>
L: linux-rpi-kernel@lists.infradead.org (moderated for non-subscribers)
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-rpi.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/rpi/linux-rpi.git
S: Maintained
N: bcm2835
BROADCOM BCM7XXX ARM ARCHITECTURE
M: Marc Carino <marc.ceeeee@gmail.com>
M: Brian Norris <computersforpeace@gmail.com>
+M: Gregory Fong <gregory.0xf0@gmail.com>
+M: Florian Fainelli <f.fainelli@gmail.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
F: arch/arm/mach-bcm/*brcmstb*
F: arch/arm/boot/dts/bcm7*.dts*
+F: drivers/bus/brcmstb_gisb.c
BROADCOM TG3 GIGABIT ETHERNET DRIVER
M: Prashant Sreedharan <prashant@broadcom.com>
S: Supported
F: drivers/scsi/bnx2i/
+BROADCOM CYGNUS/IPROC ARM ARCHITECTURE
+M: Ray Jui <rjui@broadcom.com>
+M: Scott Branden <sbranden@broadcom.com>
+L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+L: bcm-kernel-feedback-list@broadcom.com
+T: git git://git.github.com/brcm/linux.git
+S: Maintained
+N: iproc
+N: cygnus
+N: bcm9113*
+N: bcm9583*
+N: bcm583*
+N: bcm113*
+
BROADCOM KONA GPIO DRIVER
M: Ray Jui <rjui@broadcom.com>
L: bcm-kernel-feedback-list@broadcom.com
F: fs/btrfs/
BTTV VIDEO4LINUX DRIVER
-M: Mauro Carvalho Chehab <m.chehab@samsung.com>
+M: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
L: linux-media@vger.kernel.org
W: http://linuxtv.org
T: git git://linuxtv.org/media_tree.git
F: include/media/cx2341x*
CX88 VIDEO4LINUX DRIVER
-M: Mauro Carvalho Chehab <m.chehab@samsung.com>
+M: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
L: linux-media@vger.kernel.org
W: http://linuxtv.org
T: git git://linuxtv.org/media_tree.git
S: Supported
F: drivers/net/ethernet/chelsio/cxgb3/
+CXGB3 ISCSI DRIVER (CXGB3I)
+M: Karen Xie <kxie@chelsio.com>
+L: linux-scsi@vger.kernel.org
+W: http://www.chelsio.com
+S: Supported
+F: drivers/scsi/cxgbi/cxgb3i
+
CXGB3 IWARP RNIC DRIVER (IW_CXGB3)
M: Steve Wise <swise@chelsio.com>
L: linux-rdma@vger.kernel.org
S: Supported
F: drivers/net/ethernet/chelsio/cxgb4/
+CXGB4 ISCSI DRIVER (CXGB4I)
+M: Karen Xie <kxie@chelsio.com>
+L: linux-scsi@vger.kernel.org
+W: http://www.chelsio.com
+S: Supported
+F: drivers/scsi/cxgbi/cxgb4i
+
CXGB4 IWARP RNIC DRIVER (IW_CXGB4)
M: Steve Wise <swise@chelsio.com>
L: linux-rdma@vger.kernel.org
F: drivers/net/ethernet/dec/tulip/dmfe.c
DC390/AM53C974 SCSI driver
-M: Kurt Garloff <garloff@suse.de>
-W: http://www.garloff.de/kurt/linux/dc390/
-M: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
+M: Hannes Reinecke <hare@suse.de>
+L: linux-scsi@vger.kernel.org
S: Maintained
-F: drivers/scsi/tmscsim.*
+F: drivers/scsi/am53c974.c
DC395x SCSI driver
M: Oliver Neukum <oliver@neukum.org>
EDAC-CORE
M: Doug Thompson <dougthompson@xmission.com>
M: Borislav Petkov <bp@alien8.de>
-M: Mauro Carvalho Chehab <m.chehab@samsung.com>
+M: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
L: linux-edac@vger.kernel.org
W: bluesmoke.sourceforge.net
S: Supported
F: drivers/edac/e7xxx_edac.c
EDAC-GHES
-M: Mauro Carvalho Chehab <m.chehab@samsung.com>
+M: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
L: linux-edac@vger.kernel.org
W: bluesmoke.sourceforge.net
S: Maintained
F: drivers/edac/i5000_edac.c
EDAC-I5400
-M: Mauro Carvalho Chehab <m.chehab@samsung.com>
+M: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
L: linux-edac@vger.kernel.org
W: bluesmoke.sourceforge.net
S: Maintained
F: drivers/edac/i5400_edac.c
EDAC-I7300
-M: Mauro Carvalho Chehab <m.chehab@samsung.com>
+M: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
L: linux-edac@vger.kernel.org
W: bluesmoke.sourceforge.net
S: Maintained
F: drivers/edac/i7300_edac.c
EDAC-I7CORE
-M: Mauro Carvalho Chehab <m.chehab@samsung.com>
+M: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
L: linux-edac@vger.kernel.org
W: bluesmoke.sourceforge.net
S: Maintained
F: drivers/edac/r82600_edac.c
EDAC-SBRIDGE
-M: Mauro Carvalho Chehab <m.chehab@samsung.com>
+M: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
L: linux-edac@vger.kernel.org
W: bluesmoke.sourceforge.net
S: Maintained
F: drivers/net/ethernet/ibm/ehea/
EM28XX VIDEO4LINUX DRIVER
-M: Mauro Carvalho Chehab <m.chehab@samsung.com>
+M: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
L: linux-media@vger.kernel.org
W: http://linuxtv.org
T: git git://linuxtv.org/media_tree.git
S: Maintained
F: drivers/iio/
F: drivers/staging/iio/
+F: include/linux/iio/
IKANOS/ADI EAGLE ADSL USB DRIVER
M: Matthieu Castet <castet.matthieu@free.fr>
F: drivers/media/radio/radio-maxiradio*
MEDIA INPUT INFRASTRUCTURE (V4L/DVB)
-M: Mauro Carvalho Chehab <m.chehab@samsung.com>
+M: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
P: LinuxTV.org Project
L: linux-media@vger.kernel.org
W: http://linuxtv.org
S: Odd Fixes
F: drivers/media/parport/pms*
-MEGARAID SCSI DRIVERS
-M: Neela Syam Kolli <megaraidlinux@lsi.com>
+MEGARAID SCSI/SAS DRIVERS
+M: Kashyap Desai <kashyap.desai@avagotech.com>
+M: Sumit Saxena <sumit.saxena@avagotech.com>
+M: Uday Lingala <uday.lingala@avagotech.com>
+L: megaraidlinux.pdl@avagotech.com
L: linux-scsi@vger.kernel.org
-W: http://megaraid.lsilogic.com
+W: http://www.lsi.com
S: Maintained
F: Documentation/scsi/megaraid.txt
F: drivers/scsi/megaraid.*
F: drivers/scsi/g_NCR5380_mmio.c
F: drivers/scsi/mac_scsi.*
F: drivers/scsi/pas16.*
-F: drivers/scsi/sun3_NCR5380.c
F: drivers/scsi/sun3_scsi.*
F: drivers/scsi/sun3_scsi_vme.c
F: drivers/scsi/t128.*
F: Documentation/scsi/NinjaSCSI.txt
F: drivers/scsi/nsp32*
+NIOS2 ARCHITECTURE
+M: Ley Foon Tan <lftan@altera.com>
+L: nios2-dev@lists.rocketboards.org (moderated for non-subscribers)
+T: git git://git.rocketboards.org/linux-socfpga.git
+S: Maintained
+F: arch/nios2/
+
NTB DRIVER
M: Jon Mason <jdmason@kudzu.us>
M: Dave Jiang <dave.jiang@intel.com>
S: Maintained
F: arch/arm/*omap*/
F: drivers/i2c/busses/i2c-omap.c
+F: drivers/irqchip/irq-omap-intc.c
+F: drivers/mfd/*omap*.c
+F: drivers/mfd/menelaus.c
+F: drivers/mfd/palmas.c
+F: drivers/mfd/tps65217.c
+F: drivers/mfd/tps65218.c
+F: drivers/mfd/tps65910.c
+F: drivers/mfd/twl-core.[ch]
+F: drivers/mfd/twl4030*.c
+F: drivers/mfd/twl6030*.c
+F: drivers/mfd/twl6040*.c
+F: drivers/regulator/palmas-regulator*.c
+F: drivers/regulator/pbias-regulator.c
+F: drivers/regulator/tps65217-regulator.c
+F: drivers/regulator/tps65218-regulator.c
+F: drivers/regulator/tps65910-regulator.c
+F: drivers/regulator/twl-regulator.c
F: include/linux/i2c-omap.h
OMAP DEVICE TREE SUPPORT
S: Maintained
F: arch/arm/boot/dts/*omap*
F: arch/arm/boot/dts/*am3*
+F: arch/arm/boot/dts/*am4*
+F: arch/arm/boot/dts/*am5*
+F: arch/arm/boot/dts/*dra7*
OMAP CLOCK FRAMEWORK SUPPORT
M: Paul Walmsley <paul@pwsan.com>
S: Maintained
F: sound/soc/omap/
+ OMAP GENERAL PURPOSE MEMORY CONTROLLER SUPPORT
+ M: Roger Quadros <rogerq@ti.com>
+ M: Tony Lindgren <tony@atomide.com>
+ L: linux-omap@vger.kernel.org
+ S: Maintained
+ F: drivers/memory/omap-gpmc.c
+ F: arch/arm/mach-omap2/*gpmc*
+
OMAP FRAMEBUFFER SUPPORT
M: Tomi Valkeinen <tomi.valkeinen@ti.com>
L: linux-fbdev@vger.kernel.org
F: include/scsi/osd_*
F: fs/exofs/
-OVERLAYFS FILESYSTEM
+OVERLAY FILESYSTEM
M: Miklos Szeredi <miklos@szeredi.hu>
-L: linux-fsdevel@vger.kernel.org
+L: linux-unionfs@vger.kernel.org
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs.git
S: Supported
-F: fs/overlayfs/*
+F: fs/overlayfs/
F: Documentation/filesystems/overlayfs.txt
P54 WIRELESS DRIVER
PIN CONTROL SUBSYSTEM
M: Linus Walleij <linus.walleij@linaro.org>
+L: linux-gpio@vger.kernel.org
S: Maintained
F: drivers/pinctrl/
F: include/linux/pinctrl/
F: drivers/media/i2c/saa6588*
SAA7134 VIDEO4LINUX DRIVER
-M: Mauro Carvalho Chehab <m.chehab@samsung.com>
+M: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
L: linux-media@vger.kernel.org
W: http://linuxtv.org
T: git git://linuxtv.org/media_tree.git
F: drivers/media/radio/si4713/radio-usb-si4713.c
SIANO DVB DRIVER
-M: Mauro Carvalho Chehab <m.chehab@samsung.com>
+M: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
L: linux-media@vger.kernel.org
W: http://linuxtv.org
T: git git://linuxtv.org/media_tree.git
TI DAVINCI MACHINE SUPPORT
M: Sekhar Nori <nsekhar@ti.com>
M: Kevin Hilman <khilman@deeprootsystems.com>
-L: davinci-linux-open-source@linux.davincidsp.com (moderated for non-subscribers)
T: git git://gitorious.org/linux-davinci/linux-davinci.git
Q: http://patchwork.kernel.org/project/linux-davinci/list/
S: Supported
TI DAVINCI SERIES MEDIA DRIVER
M: Lad, Prabhakar <prabhakar.csengg@gmail.com>
L: linux-media@vger.kernel.org
-L: davinci-linux-open-source@linux.davincidsp.com (moderated for non-subscribers)
W: http://linuxtv.org/
Q: http://patchwork.linuxtv.org/project/linux-media/list/
T: git git://linuxtv.org/mhadli/v4l-dvb-davinci_devices.git
F: drivers/leds/leds-net48xx.c
SOFTLOGIC 6x10 MPEG CODEC
-M: Ismael Luceno <ismael.luceno@corp.bluecherry.net>
+M: Bluecherry Maintainers <maintainers@bluecherrydvr.com>
+M: Andrey Utkin <andrey.utkin@corp.bluecherry.net>
+M: Andrey Utkin <andrey.krieger.utkin@gmail.com>
L: linux-media@vger.kernel.org
S: Supported
F: drivers/media/pci/solo6x10/
F: drivers/media/i2c/tda9840*
TEA5761 TUNER DRIVER
-M: Mauro Carvalho Chehab <m.chehab@samsung.com>
+M: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
L: linux-media@vger.kernel.org
W: http://linuxtv.org
T: git git://linuxtv.org/media_tree.git
F: drivers/media/tuners/tea5761.*
TEA5767 TUNER DRIVER
-M: Mauro Carvalho Chehab <m.chehab@samsung.com>
+M: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
L: linux-media@vger.kernel.org
W: http://linuxtv.org
T: git git://linuxtv.org/media_tree.git
F: mm/shmem.c
TM6000 VIDEO4LINUX DRIVER
-M: Mauro Carvalho Chehab <m.chehab@samsung.com>
+M: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
L: linux-media@vger.kernel.org
W: http://linuxtv.org
T: git git://linuxtv.org/media_tree.git
F: Documentation/hid/hiddev.txt
F: drivers/hid/usbhid/
-USB/IP DRIVERS
-L: linux-usb@vger.kernel.org
-S: Orphan
-F: drivers/staging/usbip/
-
USB ISP116X DRIVER
M: Olav Kongas <ok@artecdesign.ee>
L: linux-usb@vger.kernel.org
F: arch/x86/kernel/cpu/mcheck/*
XC2028/3028 TUNER DRIVER
-M: Mauro Carvalho Chehab <m.chehab@samsung.com>
+M: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
L: linux-media@vger.kernel.org
W: http://linuxtv.org
T: git git://linuxtv.org/media_tree.git
#include <linux/of_address.h>
#include <linux/of_mtd.h>
#include <linux/of_device.h>
+ #include <linux/omap-gpmc.h>
#include <linux/mtd/nand.h>
#include <linux/pm_runtime.h>
#include <linux/platform_data/mtd-nand-omap2.h>
+ #include <linux/platform_data/mtd-onenand-omap2.h>
#include <asm/mach-types.h>
- #include "soc.h"
- #include "common.h"
- #include "omap_device.h"
- #include "gpmc.h"
- #include "gpmc-nand.h"
- #include "gpmc-onenand.h"
-
#define DEVICE_NAME "omap-gpmc"
/* GPMC register offsets */
#define GPMC_ECC_CTRL_ECCREG8 0x008
#define GPMC_ECC_CTRL_ECCREG9 0x009
+ #define GPMC_CONFIG_LIMITEDADDRESS BIT(1)
+
#define GPMC_CONFIG2_CSEXTRADELAY BIT(7)
#define GPMC_CONFIG3_ADVEXTRADELAY BIT(7)
#define GPMC_CONFIG4_OEEXTRADELAY BIT(7)
#define GPMC_NR_WAITPINS 4
+ #define GPMC_CS_CONFIG1 0x00
+ #define GPMC_CS_CONFIG2 0x04
+ #define GPMC_CS_CONFIG3 0x08
+ #define GPMC_CS_CONFIG4 0x0c
+ #define GPMC_CS_CONFIG5 0x10
+ #define GPMC_CS_CONFIG6 0x14
+ #define GPMC_CS_CONFIG7 0x18
+ #define GPMC_CS_NAND_COMMAND 0x1c
+ #define GPMC_CS_NAND_ADDRESS 0x20
+ #define GPMC_CS_NAND_DATA 0x24
+
+ /* Control Commands */
+ #define GPMC_CONFIG_RDY_BSY 0x00000001
+ #define GPMC_CONFIG_DEV_SIZE 0x00000002
+ #define GPMC_CONFIG_DEV_TYPE 0x00000003
+ #define GPMC_SET_IRQ_STATUS 0x00000004
+
+ #define GPMC_CONFIG1_WRAPBURST_SUPP (1 << 31)
+ #define GPMC_CONFIG1_READMULTIPLE_SUPP (1 << 30)
+ #define GPMC_CONFIG1_READTYPE_ASYNC (0 << 29)
+ #define GPMC_CONFIG1_READTYPE_SYNC (1 << 29)
+ #define GPMC_CONFIG1_WRITEMULTIPLE_SUPP (1 << 28)
+ #define GPMC_CONFIG1_WRITETYPE_ASYNC (0 << 27)
+ #define GPMC_CONFIG1_WRITETYPE_SYNC (1 << 27)
+ #define GPMC_CONFIG1_CLKACTIVATIONTIME(val) ((val & 3) << 25)
+ #define GPMC_CONFIG1_PAGE_LEN(val) ((val & 3) << 23)
+ #define GPMC_CONFIG1_WAIT_READ_MON (1 << 22)
+ #define GPMC_CONFIG1_WAIT_WRITE_MON (1 << 21)
+ #define GPMC_CONFIG1_WAIT_MON_IIME(val) ((val & 3) << 18)
+ #define GPMC_CONFIG1_WAIT_PIN_SEL(val) ((val & 3) << 16)
+ #define GPMC_CONFIG1_DEVICESIZE(val) ((val & 3) << 12)
+ #define GPMC_CONFIG1_DEVICESIZE_16 GPMC_CONFIG1_DEVICESIZE(1)
+ #define GPMC_CONFIG1_DEVICETYPE(val) ((val & 3) << 10)
+ #define GPMC_CONFIG1_DEVICETYPE_NOR GPMC_CONFIG1_DEVICETYPE(0)
+ #define GPMC_CONFIG1_MUXTYPE(val) ((val & 3) << 8)
+ #define GPMC_CONFIG1_TIME_PARA_GRAN (1 << 4)
+ #define GPMC_CONFIG1_FCLK_DIV(val) (val & 3)
+ #define GPMC_CONFIG1_FCLK_DIV2 (GPMC_CONFIG1_FCLK_DIV(1))
+ #define GPMC_CONFIG1_FCLK_DIV3 (GPMC_CONFIG1_FCLK_DIV(2))
+ #define GPMC_CONFIG1_FCLK_DIV4 (GPMC_CONFIG1_FCLK_DIV(3))
+ #define GPMC_CONFIG7_CSVALID (1 << 6)
+
+ #define GPMC_DEVICETYPE_NOR 0
+ #define GPMC_DEVICETYPE_NAND 2
+ #define GPMC_CONFIG_WRITEPROTECT 0x00000010
+ #define WR_RD_PIN_MONITORING 0x00600000
+
+ #define GPMC_ENABLE_IRQ 0x0000000d
+
+ /* ECC commands */
+ #define GPMC_ECC_READ 0 /* Reset Hardware ECC for read */
+ #define GPMC_ECC_WRITE 1 /* Reset Hardware ECC for write */
+ #define GPMC_ECC_READSYN 2 /* Reset before syndrom is read back */
+
/* XXX: Only NAND irq has been considered,currently these are the only ones used
*/
#define GPMC_NR_IRQ 2
+ struct gpmc_cs_data {
+ const char *name;
+
+ #define GPMC_CS_RESERVED (1 << 0)
+ u32 flags;
+
+ struct resource mem;
+ };
+
struct gpmc_client_irq {
unsigned irq;
u32 bitmask;
static int gpmc_irq_start;
static struct resource gpmc_mem_root;
- static struct resource gpmc_cs_mem[GPMC_CS_NUM];
+ static struct gpmc_cs_data gpmc_cs[GPMC_CS_NUM];
static DEFINE_SPINLOCK(gpmc_mem_lock);
/* Define chip-selects as reserved by default until probe completes */
- static unsigned int gpmc_cs_map = ((1 << GPMC_CS_NUM) - 1);
static unsigned int gpmc_cs_num = GPMC_CS_NUM;
static unsigned int gpmc_nr_waitpins;
static struct device *gpmc_dev;
{
unsigned long rate = clk_get_rate(gpmc_l3_clk);
- if (rate == 0) {
- printk(KERN_WARNING "gpmc_l3_clk not enabled\n");
- return 0;
- }
-
rate /= 1000;
rate = 1000000000 / rate; /* In picoseconds */
}
#ifdef DEBUG
- static int set_gpmc_timing_reg(int cs, int reg, int st_bit, int end_bit,
- int time, const char *name)
+ static int get_gpmc_timing_reg(int cs, int reg, int st_bit, int end_bit,
+ bool raw, bool noval, int shift,
+ const char *name)
+ {
+ u32 l;
+ int nr_bits, max_value, mask;
+
+ l = gpmc_cs_read_reg(cs, reg);
+ nr_bits = end_bit - st_bit + 1;
+ max_value = (1 << nr_bits) - 1;
+ mask = max_value << st_bit;
+ l = (l & mask) >> st_bit;
+ if (shift)
+ l = (shift << l);
+ if (noval && (l == 0))
+ return 0;
+ if (!raw) {
+ unsigned int time_ns_min, time_ns, time_ns_max;
+
+ time_ns_min = gpmc_ticks_to_ns(l ? l - 1 : 0);
+ time_ns = gpmc_ticks_to_ns(l);
+ time_ns_max = gpmc_ticks_to_ns(l + 1 > max_value ?
+ max_value : l + 1);
+ pr_info("gpmc,%s = <%u> (%u - %u ns, %i ticks)\n",
+ name, time_ns, time_ns_min, time_ns_max, l);
+ } else {
+ pr_info("gpmc,%s = <%u>\n", name, l);
+ }
+
+ return l;
+ }
+
+ #define GPMC_PRINT_CONFIG(cs, config) \
+ pr_info("cs%i %s: 0x%08x\n", cs, #config, \
+ gpmc_cs_read_reg(cs, config))
+ #define GPMC_GET_RAW(reg, st, end, field) \
+ get_gpmc_timing_reg(cs, (reg), (st), (end), 1, 0, 0, field)
+ #define GPMC_GET_RAW_BOOL(reg, st, end, field) \
+ get_gpmc_timing_reg(cs, (reg), (st), (end), 1, 1, 0, field)
+ #define GPMC_GET_RAW_SHIFT(reg, st, end, shift, field) \
+ get_gpmc_timing_reg(cs, (reg), (st), (end), 1, 1, (shift), field)
+ #define GPMC_GET_TICKS(reg, st, end, field) \
+ get_gpmc_timing_reg(cs, (reg), (st), (end), 0, 0, 0, field)
+
+ static void gpmc_show_regs(int cs, const char *desc)
+ {
+ pr_info("gpmc cs%i %s:\n", cs, desc);
+ GPMC_PRINT_CONFIG(cs, GPMC_CS_CONFIG1);
+ GPMC_PRINT_CONFIG(cs, GPMC_CS_CONFIG2);
+ GPMC_PRINT_CONFIG(cs, GPMC_CS_CONFIG3);
+ GPMC_PRINT_CONFIG(cs, GPMC_CS_CONFIG4);
+ GPMC_PRINT_CONFIG(cs, GPMC_CS_CONFIG5);
+ GPMC_PRINT_CONFIG(cs, GPMC_CS_CONFIG6);
+ }
+
+ /*
+ * Note that gpmc,wait-pin handing wrongly assumes bit 8 is available,
+ * see commit c9fb809.
+ */
+ static void gpmc_cs_show_timings(int cs, const char *desc)
+ {
+ gpmc_show_regs(cs, desc);
+
+ pr_info("gpmc cs%i access configuration:\n", cs);
+ GPMC_GET_RAW_BOOL(GPMC_CS_CONFIG1, 4, 4, "time-para-granularity");
+ GPMC_GET_RAW(GPMC_CS_CONFIG1, 8, 9, "mux-add-data");
+ GPMC_GET_RAW(GPMC_CS_CONFIG1, 12, 13, "device-width");
+ GPMC_GET_RAW(GPMC_CS_CONFIG1, 16, 17, "wait-pin");
+ GPMC_GET_RAW_BOOL(GPMC_CS_CONFIG1, 21, 21, "wait-on-write");
+ GPMC_GET_RAW_BOOL(GPMC_CS_CONFIG1, 22, 22, "wait-on-read");
+ GPMC_GET_RAW_SHIFT(GPMC_CS_CONFIG1, 23, 24, 4, "burst-length");
+ GPMC_GET_RAW_BOOL(GPMC_CS_CONFIG1, 27, 27, "sync-write");
+ GPMC_GET_RAW_BOOL(GPMC_CS_CONFIG1, 28, 28, "burst-write");
+ GPMC_GET_RAW_BOOL(GPMC_CS_CONFIG1, 29, 29, "gpmc,sync-read");
+ GPMC_GET_RAW_BOOL(GPMC_CS_CONFIG1, 30, 30, "burst-read");
+ GPMC_GET_RAW_BOOL(GPMC_CS_CONFIG1, 31, 31, "burst-wrap");
+
+ GPMC_GET_RAW_BOOL(GPMC_CS_CONFIG2, 7, 7, "cs-extra-delay");
+
+ GPMC_GET_RAW_BOOL(GPMC_CS_CONFIG3, 7, 7, "adv-extra-delay");
+
+ GPMC_GET_RAW_BOOL(GPMC_CS_CONFIG4, 23, 23, "we-extra-delay");
+ GPMC_GET_RAW_BOOL(GPMC_CS_CONFIG4, 7, 7, "oe-extra-delay");
+
+ GPMC_GET_RAW_BOOL(GPMC_CS_CONFIG6, 7, 7, "cycle2cycle-samecsen");
+ GPMC_GET_RAW_BOOL(GPMC_CS_CONFIG6, 6, 6, "cycle2cycle-diffcsen");
+
+ pr_info("gpmc cs%i timings configuration:\n", cs);
+ GPMC_GET_TICKS(GPMC_CS_CONFIG2, 0, 3, "cs-on-ns");
+ GPMC_GET_TICKS(GPMC_CS_CONFIG2, 8, 12, "cs-rd-off-ns");
+ GPMC_GET_TICKS(GPMC_CS_CONFIG2, 16, 20, "cs-wr-off-ns");
+
+ GPMC_GET_TICKS(GPMC_CS_CONFIG3, 0, 3, "adv-on-ns");
+ GPMC_GET_TICKS(GPMC_CS_CONFIG3, 8, 12, "adv-rd-off-ns");
+ GPMC_GET_TICKS(GPMC_CS_CONFIG3, 16, 20, "adv-wr-off-ns");
+
+ GPMC_GET_TICKS(GPMC_CS_CONFIG4, 0, 3, "oe-on-ns");
+ GPMC_GET_TICKS(GPMC_CS_CONFIG4, 8, 12, "oe-off-ns");
+ GPMC_GET_TICKS(GPMC_CS_CONFIG4, 16, 19, "we-on-ns");
+ GPMC_GET_TICKS(GPMC_CS_CONFIG4, 24, 28, "we-off-ns");
+
+ GPMC_GET_TICKS(GPMC_CS_CONFIG5, 0, 4, "rd-cycle-ns");
+ GPMC_GET_TICKS(GPMC_CS_CONFIG5, 8, 12, "wr-cycle-ns");
+ GPMC_GET_TICKS(GPMC_CS_CONFIG5, 16, 20, "access-ns");
+
+ GPMC_GET_TICKS(GPMC_CS_CONFIG5, 24, 27, "page-burst-access-ns");
+
+ GPMC_GET_TICKS(GPMC_CS_CONFIG6, 0, 3, "bus-turnaround-ns");
+ GPMC_GET_TICKS(GPMC_CS_CONFIG6, 8, 11, "cycle2cycle-delay-ns");
+
+ GPMC_GET_TICKS(GPMC_CS_CONFIG1, 18, 19, "wait-monitoring-ns");
+ GPMC_GET_TICKS(GPMC_CS_CONFIG1, 25, 26, "clk-activation-ns");
+
+ GPMC_GET_TICKS(GPMC_CS_CONFIG6, 16, 19, "wr-data-mux-bus-ns");
+ GPMC_GET_TICKS(GPMC_CS_CONFIG6, 24, 28, "wr-access-ns");
+ }
#else
- static int set_gpmc_timing_reg(int cs, int reg, int st_bit, int end_bit,
- int time)
+ static inline void gpmc_cs_show_timings(int cs, const char *desc)
+ {
+ }
#endif
+
+ static int set_gpmc_timing_reg(int cs, int reg, int st_bit, int end_bit,
+ int time, const char *name)
{
u32 l;
int ticks, mask, nr_bits;
else
ticks = gpmc_ns_to_ticks(time);
nr_bits = end_bit - st_bit + 1;
- if (ticks >= 1 << nr_bits) {
- #ifdef DEBUG
- printk(KERN_INFO "GPMC CS%d: %-10s* %3d ns, %3d ticks >= %d\n",
- cs, name, time, ticks, 1 << nr_bits);
- #endif
+ mask = (1 << nr_bits) - 1;
+
+ if (ticks > mask) {
+ pr_err("%s: GPMC error! CS%d: %s: %d ns, %d ticks > %d\n",
+ __func__, cs, name, time, ticks, mask);
+
return -1;
}
- mask = (1 << nr_bits) - 1;
l = gpmc_cs_read_reg(cs, reg);
#ifdef DEBUG
printk(KERN_INFO
return 0;
}
- #ifdef DEBUG
#define GPMC_SET_ONE(reg, st, end, field) \
if (set_gpmc_timing_reg(cs, (reg), (st), (end), \
t->field, #field) < 0) \
return -1
- #else
- #define GPMC_SET_ONE(reg, st, end, field) \
- if (set_gpmc_timing_reg(cs, (reg), (st), (end), t->field) < 0) \
- return -1
- #endif
int gpmc_calc_divider(unsigned int sync_clk)
{
int div;
u32 l;
+ gpmc_cs_show_timings(cs, "before gpmc_cs_set_timings");
div = gpmc_calc_divider(t->sync_clk);
if (div < 0)
return div;
}
gpmc_cs_bool_timings(cs, &t->bool_timings);
+ gpmc_cs_show_timings(cs, "after gpmc_cs_set_timings");
return 0;
}
- static int gpmc_cs_enable_mem(int cs, u32 base, u32 size)
+ static int gpmc_cs_set_memconf(int cs, u32 base, u32 size)
{
u32 l;
u32 mask;
return 0;
}
+ static void gpmc_cs_enable_mem(int cs)
+ {
+ u32 l;
+
+ l = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG7);
+ l |= GPMC_CONFIG7_CSVALID;
+ gpmc_cs_write_reg(cs, GPMC_CS_CONFIG7, l);
+ }
+
static void gpmc_cs_disable_mem(int cs)
{
u32 l;
static void gpmc_cs_set_reserved(int cs, int reserved)
{
- gpmc_cs_map &= ~(1 << cs);
- gpmc_cs_map |= (reserved ? 1 : 0) << cs;
+ struct gpmc_cs_data *gpmc = &gpmc_cs[cs];
+
+ gpmc->flags |= GPMC_CS_RESERVED;
}
static bool gpmc_cs_reserved(int cs)
{
- return gpmc_cs_map & (1 << cs);
+ struct gpmc_cs_data *gpmc = &gpmc_cs[cs];
+
+ return gpmc->flags & GPMC_CS_RESERVED;
+ }
+
+ static void gpmc_cs_set_name(int cs, const char *name)
+ {
+ struct gpmc_cs_data *gpmc = &gpmc_cs[cs];
+
+ gpmc->name = name;
+ }
+
+ const char *gpmc_cs_get_name(int cs)
+ {
+ struct gpmc_cs_data *gpmc = &gpmc_cs[cs];
+
+ return gpmc->name;
}
static unsigned long gpmc_mem_align(unsigned long size)
static int gpmc_cs_insert_mem(int cs, unsigned long base, unsigned long size)
{
- struct resource *res = &gpmc_cs_mem[cs];
+ struct gpmc_cs_data *gpmc = &gpmc_cs[cs];
+ struct resource *res = &gpmc->mem;
int r;
size = gpmc_mem_align(size);
static int gpmc_cs_delete_mem(int cs)
{
- struct resource *res = &gpmc_cs_mem[cs];
+ struct gpmc_cs_data *gpmc = &gpmc_cs[cs];
+ struct resource *res = &gpmc->mem;
int r;
spin_lock(&gpmc_mem_lock);
gpmc_cs_get_memconf(cs, &old_base, &size);
if (base == old_base)
return 0;
- gpmc_cs_disable_mem(cs);
+
ret = gpmc_cs_delete_mem(cs);
if (ret < 0)
return ret;
+
ret = gpmc_cs_insert_mem(cs, base, size);
- if (ret < 0)
- return ret;
- ret = gpmc_cs_enable_mem(cs, base, size);
if (ret < 0)
return ret;
- return 0;
+ ret = gpmc_cs_set_memconf(cs, base, size);
+
+ return ret;
}
int gpmc_cs_request(int cs, unsigned long size, unsigned long *base)
{
- struct resource *res = &gpmc_cs_mem[cs];
+ struct gpmc_cs_data *gpmc = &gpmc_cs[cs];
+ struct resource *res = &gpmc->mem;
int r = -1;
if (cs > gpmc_cs_num) {
if (r < 0)
goto out;
- r = gpmc_cs_enable_mem(cs, res->start, resource_size(res));
+ /* Disable CS while changing base address and size mask */
+ gpmc_cs_disable_mem(cs);
+
+ r = gpmc_cs_set_memconf(cs, res->start, resource_size(res));
if (r < 0) {
release_resource(res);
goto out;
}
+ /* Enable CS */
+ gpmc_cs_enable_mem(cs);
*base = res->start;
gpmc_cs_set_reserved(cs, 1);
out:
void gpmc_cs_free(int cs)
{
- struct resource *res = &gpmc_cs_mem[cs];
+ struct gpmc_cs_data *gpmc = &gpmc_cs[cs];
+ struct resource *res = &gpmc->mem;
spin_lock(&gpmc_mem_lock);
if (cs >= gpmc_cs_num || cs < 0 || !gpmc_cs_reserved(cs)) {
if (gpmc_nand_data->elm_of_node == NULL)
gpmc_nand_data->elm_of_node =
of_parse_phandle(child, "elm_id", 0);
- if (gpmc_nand_data->elm_of_node == NULL)
- pr_warn("%s: ti,elm-id property not found\n", __func__);
/* select ecc-scheme for NAND */
if (of_property_read_string(child, "ti,nand-ecc-opt", &s)) {
struct gpmc_timings gpmc_t;
struct resource res;
unsigned long base;
+ const char *name;
int ret, cs;
+ u32 val;
if (of_property_read_u32(child, "reg", &cs) < 0) {
dev_err(&pdev->dev, "%s has no 'reg' property\n",
return -ENODEV;
}
+ /*
+ * Check if we have multiple instances of the same device
+ * on a single chip select. If so, use the already initialized
+ * timings.
+ */
+ name = gpmc_cs_get_name(cs);
+ if (name && child->name && of_node_cmp(child->name, name) == 0)
+ goto no_timings;
+
ret = gpmc_cs_request(cs, resource_size(&res), &base);
if (ret < 0) {
dev_err(&pdev->dev, "cannot request GPMC CS %d\n", cs);
return ret;
}
+ gpmc_cs_set_name(cs, child->name);
+
+ gpmc_read_settings_dt(child, &gpmc_s);
+ gpmc_read_timings_dt(child, &gpmc_t);
/*
* For some GPMC devices we still need to rely on the bootloader
- * timings because the devices can be connected via FPGA. So far
- * the list is smc91x on the omap2 SDP boards, and 8250 on zooms.
- * REVISIT: Add timing support from slls644g.pdf and from the
- * lan91c96 manual.
+ * timings because the devices can be connected via FPGA.
+ * REVISIT: Add timing support from slls644g.pdf.
*/
- if (of_device_is_compatible(child, "ns16550a") ||
- of_device_is_compatible(child, "smsc,lan91c94") ||
- of_device_is_compatible(child, "smsc,lan91c111")) {
- dev_warn(&pdev->dev,
- "%s using bootloader timings on CS%d\n",
- child->name, cs);
+ if (!gpmc_t.cs_rd_off) {
+ WARN(1, "enable GPMC debug to configure .dts timings for CS%i\n",
+ cs);
+ gpmc_cs_show_timings(cs,
+ "please add GPMC bootloader timings to .dts");
goto no_timings;
}
+ /* CS must be disabled while making changes to gpmc configuration */
+ gpmc_cs_disable_mem(cs);
+
/*
* FIXME: gpmc_cs_request() will map the CS to an arbitary
* location in the gpmc address space. When booting with
goto err;
}
- gpmc_read_settings_dt(child, &gpmc_s);
-
ret = of_property_read_u32(child, "bank-width", &gpmc_s.device_width);
if (ret < 0)
goto err;
if (ret < 0)
goto err;
- gpmc_read_timings_dt(child, &gpmc_t);
- gpmc_cs_set_timings(cs, &gpmc_t);
+ ret = gpmc_cs_set_timings(cs, &gpmc_t);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to set gpmc timings for: %s\n",
+ child->name);
+ goto err;
+ }
+
+ /* Clear limited address i.e. enable A26-A11 */
+ val = gpmc_read_reg(GPMC_CONFIG);
+ val &= ~GPMC_CONFIG_LIMITEDADDRESS;
+ gpmc_write_reg(GPMC_CONFIG, val);
+
+ /* Enable CS region */
+ gpmc_cs_enable_mem(cs);
no_timings:
if (of_platform_device_create(child, NULL, &pdev->dev))
else
gpmc_irq = res->start;
- gpmc_l3_clk = clk_get(&pdev->dev, "fck");
+ gpmc_l3_clk = devm_clk_get(&pdev->dev, "fck");
if (IS_ERR(gpmc_l3_clk)) {
- dev_err(&pdev->dev, "error: clk_get\n");
+ dev_err(&pdev->dev, "Failed to get GPMC fck\n");
gpmc_irq = 0;
return PTR_ERR(gpmc_l3_clk);
}
+ if (!clk_get_rate(gpmc_l3_clk)) {
+ dev_err(&pdev->dev, "Invalid GPMC fck clock rate\n");
+ return -EINVAL;
+ }
+
pm_runtime_enable(&pdev->dev);
pm_runtime_get_sync(&pdev->dev);
if (gpmc_setup_irq() < 0)
dev_warn(gpmc_dev, "gpmc_setup_irq failed\n");
- /* Now the GPMC is initialised, unreserve the chip-selects */
- gpmc_cs_map = 0;
-
if (!pdev->dev.of_node) {
gpmc_cs_num = GPMC_CS_NUM;
gpmc_nr_waitpins = GPMC_NR_WAITPINS;
rc = gpmc_probe_dt(pdev);
if (rc < 0) {
pm_runtime_put_sync(&pdev->dev);
- clk_put(gpmc_l3_clk);
dev_err(gpmc_dev, "failed to probe DT parameters\n");
return rc;
}
}
- omap_postcore_initcall(gpmc_init);
+ postcore_initcall(gpmc_init);
module_exit(gpmc_exit);
- static int __init omap_gpmc_init(void)
- {
- struct omap_hwmod *oh;
- struct platform_device *pdev;
- char *oh_name = "gpmc";
-
- /*
- * if the board boots up with a populated DT, do not
- * manually add the device from this initcall
- */
- if (of_have_populated_dt())
- return -ENODEV;
-
- oh = omap_hwmod_lookup(oh_name);
- if (!oh) {
- pr_err("Could not look up %s\n", oh_name);
- return -ENODEV;
- }
-
- pdev = omap_device_build(DEVICE_NAME, -1, oh, NULL, 0);
- WARN(IS_ERR(pdev), "could not build omap_device for %s\n", oh_name);
-
- return PTR_RET(pdev);
- }
- omap_postcore_initcall(omap_gpmc_init);
-
static irqreturn_t gpmc_handle_irq(int irq, void *dev)
{
int i;
projects / karo-tx-linux.git / commitdiff