Commit ebc62fb3 authored by Jeff Garzik's avatar Jeff Garzik

Merge branch 'master'

parents 418fbfe9 df7addbb
VERSION = 2
PATCHLEVEL = 6
SUBLEVEL = 15
EXTRAVERSION =-rc5
NAME=Affluent Albatross
EXTRAVERSION =-rc6
NAME=Sliding Snow Leopard
# *DOCUMENTATION*
# To see a list of typical targets execute "make help"
......
......@@ -1311,7 +1311,7 @@ static void radeon_set_pcigart(drm_radeon_private_t * dev_priv, int on)
static int radeon_do_init_cp(drm_device_t * dev, drm_radeon_init_t * init)
{
drm_radeon_private_t *dev_priv = dev->dev_private;;
drm_radeon_private_t *dev_priv = dev->dev_private;
unsigned int mem_size;
DRM_DEBUG("\n");
......
......@@ -41,6 +41,7 @@ struct hpsb_host {
/* this nodes state */
unsigned in_bus_reset:1;
unsigned is_shutdown:1;
unsigned resume_packet_sent:1;
/* this nodes' duties on the bus */
unsigned is_root:1;
......
......@@ -1349,6 +1349,33 @@ static void nodemgr_update_pdrv(struct node_entry *ne)
}
/* Write the BROADCAST_CHANNEL as per IEEE1394a 8.3.2.3.11 and 8.4.2.3. This
* seems like an optional service but in the end it is practically mandatory
* as a consequence of these clauses.
*
* Note that we cannot do a broadcast write to all nodes at once because some
* pre-1394a devices would hang. */
static void nodemgr_irm_write_bc(struct node_entry *ne, int generation)
{
const u64 bc_addr = (CSR_REGISTER_BASE | CSR_BROADCAST_CHANNEL);
quadlet_t bc_remote, bc_local;
int ret;
if (!ne->host->is_irm || ne->generation != generation ||
ne->nodeid == ne->host->node_id)
return;
bc_local = cpu_to_be32(ne->host->csr.broadcast_channel);
/* Check if the register is implemented and 1394a compliant. */
ret = hpsb_read(ne->host, ne->nodeid, generation, bc_addr, &bc_remote,
sizeof(bc_remote));
if (!ret && bc_remote & cpu_to_be32(0x80000000) &&
bc_remote != bc_local)
hpsb_node_write(ne, bc_addr, &bc_local, sizeof(bc_local));
}
static void nodemgr_probe_ne(struct host_info *hi, struct node_entry *ne, int generation)
{
struct device *dev;
......@@ -1360,6 +1387,8 @@ static void nodemgr_probe_ne(struct host_info *hi, struct node_entry *ne, int ge
if (!dev)
return;
nodemgr_irm_write_bc(ne, generation);
/* If "needs_probe", then this is either a new or changed node we
* rescan totally. If the generation matches for an existing node
* (one that existed prior to the bus reset) we send update calls
......@@ -1413,9 +1442,25 @@ static void nodemgr_node_probe(struct host_info *hi, int generation)
return;
}
/* Because we are a 1394a-2000 compliant IRM, we need to inform all the other
* nodes of the broadcast channel. (Really we're only setting the validity
* bit). Other IRM responsibilities go in here as well. */
static int nodemgr_send_resume_packet(struct hpsb_host *host)
{
struct hpsb_packet *packet;
int ret = 1;
packet = hpsb_make_phypacket(host,
0x003c0000 | NODEID_TO_NODE(host->node_id) << 24);
if (packet) {
packet->no_waiter = 1;
packet->generation = get_hpsb_generation(host);
ret = hpsb_send_packet(packet);
}
if (ret)
HPSB_WARN("fw-host%d: Failed to broadcast resume packet",
host->id);
return ret;
}
/* Perform a few high-level IRM responsibilities. */
static int nodemgr_do_irm_duties(struct hpsb_host *host, int cycles)
{
quadlet_t bc;
......@@ -1424,13 +1469,8 @@ static int nodemgr_do_irm_duties(struct hpsb_host *host, int cycles)
if (!host->is_irm || host->irm_id == (nodeid_t)-1)
return 1;
host->csr.broadcast_channel |= 0x40000000; /* set validity bit */
bc = cpu_to_be32(host->csr.broadcast_channel);
hpsb_write(host, LOCAL_BUS | ALL_NODES, get_hpsb_generation(host),
(CSR_REGISTER_BASE | CSR_BROADCAST_CHANNEL),
&bc, sizeof(quadlet_t));
/* We are a 1394a-2000 compliant IRM. Set the validity bit. */
host->csr.broadcast_channel |= 0x40000000;
/* If there is no bus manager then we should set the root node's
* force_root bit to promote bus stability per the 1394
......@@ -1463,6 +1503,13 @@ static int nodemgr_do_irm_duties(struct hpsb_host *host, int cycles)
}
}
/* Some devices suspend their ports while being connected to an inactive
* host adapter, i.e. if connected before the low-level driver is
* loaded. They become visible either when physically unplugged and
* replugged, or when receiving a resume packet. Send one once. */
if (!host->resume_packet_sent && !nodemgr_send_resume_packet(host))
host->resume_packet_sent = 1;
return 1;
}
......
......@@ -12,9 +12,9 @@
* This is a device driver for the OneNAND flash for generic boards.
*/
#include <linux/device.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/onenand.h>
#include <linux/mtd/partitions.h>
......@@ -39,7 +39,7 @@ static int __devinit generic_onenand_probe(struct device *dev)
{
struct onenand_info *info;
struct platform_device *pdev = to_platform_device(dev);
struct onenand_platform_data *pdata = pdev->dev.platform_data;
struct flash_platform_data *pdata = pdev->dev.platform_data;
struct resource *res = pdev->resource;
unsigned long size = res->end - res->start + 1;
int err;
......
......@@ -940,7 +940,7 @@ static int onenand_writev_ecc(struct mtd_info *mtd, const struct kvec *vecs,
u_char *eccbuf, struct nand_oobinfo *oobsel)
{
struct onenand_chip *this = mtd->priv;
unsigned char buffer[MAX_ONENAND_PAGESIZE], *pbuf;
unsigned char *pbuf;
size_t total_len, len;
int i, written = 0;
int ret = 0;
......@@ -975,7 +975,7 @@ static int onenand_writev_ecc(struct mtd_info *mtd, const struct kvec *vecs,
/* Loop until all keve's data has been written */
len = 0;
while (count) {
pbuf = buffer;
pbuf = this->page_buf;
/*
* If the given tuple is >= pagesize then
* write it out from the iov
......@@ -995,7 +995,7 @@ static int onenand_writev_ecc(struct mtd_info *mtd, const struct kvec *vecs,
int cnt = 0, thislen;
while (cnt < mtd->oobblock) {
thislen = min_t(int, mtd->oobblock - cnt, vecs->iov_len - len);
memcpy(buffer + cnt, vecs->iov_base + len, thislen);
memcpy(this->page_buf + cnt, vecs->iov_base + len, thislen);
cnt += thislen;
len += thislen;
......@@ -1296,6 +1296,12 @@ static int onenand_unlock(struct mtd_info *mtd, loff_t ofs, size_t len)
/* Block lock scheme */
for (block = start; block < end; block++) {
/* Set block address */
value = onenand_block_address(this, block);
this->write_word(value, this->base + ONENAND_REG_START_ADDRESS1);
/* Select DataRAM for DDP */
value = onenand_bufferram_address(this, block);
this->write_word(value, this->base + ONENAND_REG_START_ADDRESS2);
/* Set start block address */
this->write_word(block, this->base + ONENAND_REG_START_BLOCK_ADDRESS);
/* Write unlock command */
......@@ -1309,10 +1315,6 @@ static int onenand_unlock(struct mtd_info *mtd, loff_t ofs, size_t len)
& ONENAND_CTRL_ONGO)
continue;
/* Set block address for read block status */
value = onenand_block_address(this, block);
this->write_word(value, this->base + ONENAND_REG_START_ADDRESS1);
/* Check lock status */
status = this->read_word(this->base + ONENAND_REG_WP_STATUS);
if (!(status & ONENAND_WP_US))
......@@ -1346,7 +1348,6 @@ static void onenand_print_device_info(int device)
static const struct onenand_manufacturers onenand_manuf_ids[] = {
{ONENAND_MFR_SAMSUNG, "Samsung"},
{ONENAND_MFR_UNKNOWN, "Unknown"}
};
/**
......@@ -1357,17 +1358,22 @@ static const struct onenand_manufacturers onenand_manuf_ids[] = {
*/
static int onenand_check_maf(int manuf)
{
int size = ARRAY_SIZE(onenand_manuf_ids);
char *name;
int i;
for (i = 0; onenand_manuf_ids[i].id; i++) {
for (i = 0; i < size; i++)
if (manuf == onenand_manuf_ids[i].id)
break;
}
printk(KERN_DEBUG "OneNAND Manufacturer: %s (0x%0x)\n",
onenand_manuf_ids[i].name, manuf);
if (i < size)
name = onenand_manuf_ids[i].name;
else
name = "Unknown";
printk(KERN_DEBUG "OneNAND Manufacturer: %s (0x%0x)\n", name, manuf);
return (i != ONENAND_MFR_UNKNOWN);
return (i == size);
}
/**
......@@ -1513,6 +1519,18 @@ int onenand_scan(struct mtd_info *mtd, int maxchips)
this->read_bufferram = onenand_sync_read_bufferram;
}
/* Allocate buffers, if necessary */
if (!this->page_buf) {
size_t len;
len = mtd->oobblock + mtd->oobsize;
this->page_buf = kmalloc(len, GFP_KERNEL);
if (!this->page_buf) {
printk(KERN_ERR "onenand_scan(): Can't allocate page_buf\n");
return -ENOMEM;
}
this->options |= ONENAND_PAGEBUF_ALLOC;
}
this->state = FL_READY;
init_waitqueue_head(&this->wq);
spin_lock_init(&this->chip_lock);
......@@ -1574,12 +1592,21 @@ int onenand_scan(struct mtd_info *mtd, int maxchips)
*/
void onenand_release(struct mtd_info *mtd)
{
struct onenand_chip *this = mtd->priv;
#ifdef CONFIG_MTD_PARTITIONS
/* Deregister partitions */
del_mtd_partitions (mtd);
#endif
/* Deregister the device */
del_mtd_device (mtd);
/* Free bad block table memory, if allocated */
if (this->bbm)
kfree(this->bbm);
/* Buffer allocated by onenand_scan */
if (this->options & ONENAND_PAGEBUF_ALLOC)
kfree(this->page_buf);
}
EXPORT_SYMBOL_GPL(onenand_scan);
......
......@@ -118,10 +118,10 @@ static int create_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr
*/
static inline int onenand_memory_bbt (struct mtd_info *mtd, struct nand_bbt_descr *bd)
{
unsigned char data_buf[MAX_ONENAND_PAGESIZE];
struct onenand_chip *this = mtd->priv;
bd->options &= ~NAND_BBT_SCANEMPTY;
return create_bbt(mtd, data_buf, bd, -1);
return create_bbt(mtd, this->page_buf, bd, -1);
}
/**
......
......@@ -17,7 +17,6 @@
#include <linux/mtd/bbm.h>
#define MAX_BUFFERRAM 2
#define MAX_ONENAND_PAGESIZE (2048 + 64)
/* Scan and identify a OneNAND device */
extern int onenand_scan(struct mtd_info *mtd, int max_chips);
......@@ -110,6 +109,7 @@ struct onenand_chip {
spinlock_t chip_lock;
wait_queue_head_t wq;
onenand_state_t state;
unsigned char *page_buf;
struct nand_oobinfo *autooob;
......@@ -134,13 +134,12 @@ struct onenand_chip {
* Options bits
*/
#define ONENAND_CONT_LOCK (0x0001)
#define ONENAND_PAGEBUF_ALLOC (0x1000)
/*
* OneNAND Flash Manufacturer ID Codes
*/
#define ONENAND_MFR_SAMSUNG 0xec
#define ONENAND_MFR_UNKNOWN 0x00
/**
* struct nand_manufacturers - NAND Flash Manufacturer ID Structure
......
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