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ide: allow to have multiple instances

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git-svn-id: svn://coreboot.org/openbios/openbios-devel@411 f158a5a8-5612-0410-a976-696ce0be7e32
This commit is contained in:
Laurent Vivier
2009-01-15 12:55:31 +00:00
parent 33b98e5c5f
commit f336ed1793
3 changed files with 49 additions and 16 deletions
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1
arch/ppc/qemu/main.c
View File

@@ -249,7 +249,6 @@ struct first_info {
unsigned blknos[64];
};
static void
quik_startup( void )
{

60
drivers/ide.c
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@@ -25,7 +25,7 @@
#include "timer.h"
/* DECLARE data structures for the nodes. */
DECLARE_UNNAMED_NODE( ob_ide, INSTALL_OPEN, 2*sizeof(int) );
DECLARE_UNNAMED_NODE( ob_ide, INSTALL_OPEN, sizeof(struct ide_drive*) );
DECLARE_UNNAMED_NODE( ob_ide_ctrl, INSTALL_OPEN, sizeof(int));
/*
@@ -58,10 +58,26 @@ DECLARE_UNNAMED_NODE( ob_ide_ctrl, INSTALL_OPEN, sizeof(int));
static int current_channel = FIRST_UNIT;
static struct ide_channel ob_ide_channels[IDE_MAX_CHANNELS];
static struct ide_channel *channels = NULL;
static int io_ports[IDE_MAX_CHANNELS];
static int ctl_ports[IDE_MAX_CHANNELS];
static inline void ide_add_channel(struct ide_channel *chan)
{
chan->next = channels;
channels = chan;
}
static struct ide_channel *ide_seek_channel(const char *name)
{
struct ide_channel *current;
current = channels;
while (current) {
if (!strcmp(current->name, name))
return current;
current = current->next;
}
return NULL;
}
/*
* don't be pedantic
@@ -1150,7 +1166,7 @@ ob_ide_probe(struct ide_channel *chan)
static void
ob_ide_max_transfer(int *idx)
{
struct ide_drive *drive=&ob_ide_channels[idx[1]].drives[idx[0]];
struct ide_drive *drive = *(struct ide_drive **)idx;
#ifdef CONFIG_DEBUG_IDE
printk("max_transfer %x\n", drive->max_sectors * drive->bs);
#endif
@@ -1164,7 +1180,7 @@ ob_ide_read_blocks(int *idx)
cell n = POP(), cnt=n;
ucell blk = POP();
unsigned char *dest = (unsigned char *)POP();
struct ide_drive *drive=&ob_ide_channels[idx[1]].drives[idx[0]];
struct ide_drive *drive = *(struct ide_drive **)idx;
#ifdef CONFIG_DEBUG_IDE
printk("ob_ide_read_blocks %lx block=%ld n=%ld\n", (unsigned long)dest,
@@ -1192,7 +1208,7 @@ ob_ide_read_blocks(int *idx)
static void
ob_ide_block_size(int *idx)
{
struct ide_drive *drive=&ob_ide_channels[idx[1]].drives[idx[0]];
struct ide_drive *drive = *(struct ide_drive **)idx;
#ifdef CONFIG_DEBUG_IDE
printk("ob_ide_block_size: block size %x\n", drive->bs);
#endif
@@ -1225,21 +1241,25 @@ ob_ide_open(int *idx)
int ret=1, len;
phandle_t ph;
struct ide_drive *drive;
struct ide_channel *chan;
char *idename;
int unit;
fword("my-unit");
idx[0]=POP();
unit = POP();
fword("my-parent");
fword("ihandle>phandle");
ph=(phandle_t)POP();
idename=get_property(ph, "name", &len);
idx[1]=(idename[strlen(idename) - 1] - '0' - FIRST_UNIT) % 2;
chan = ide_seek_channel(idename);
drive = &chan->drives[unit];
*(struct ide_drive **)idx = drive;
#ifdef CONFIG_DEBUG_IDE
printk("opening channel %d unit %d\n", idx[1], idx[0]);
#endif
drive=&ob_ide_channels[idx[1]].drives[idx[0]];
dump_drive(drive);
if (drive->type != ide_type_ata)
@@ -1274,16 +1294,17 @@ NODE_METHODS(ob_ide) = {
static void
ob_ide_ctrl_initialize(int *idx)
{
int len, devnum, props[6];
int len, props[6];
phandle_t ph=get_cur_dev();
char *idename;
struct ide_channel *chan;
/* set device type */
push_str(DEV_TYPE);
fword("device-type");
idename=get_property(ph, "name", &len);
devnum=idename[strlen(idename) - 1] - '0' - FIRST_UNIT;
chan = ide_seek_channel(idename);
/* Create interrupt properties. */
props[0]=14; props[1]=0;
@@ -1292,9 +1313,9 @@ ob_ide_ctrl_initialize(int *idx)
set_int_property(ph, "#address-cells", 1);
set_int_property(ph, "#size-cells", 0);
props[0] = __cpu_to_be32(io_ports[devnum]);
props[0] = __cpu_to_be32(chan->io_regs[0]);
props[1] = __cpu_to_be32(1); props[2] = __cpu_to_be32(8);
props[3] = __cpu_to_be32(ctl_ports[devnum]);
props[3] = __cpu_to_be32(chan->io_regs[8]);
props[4] = __cpu_to_be32(1); props[5] = __cpu_to_be32(2);
set_property(ph, "reg", (char *)&props, 6*sizeof(int));
}
@@ -1354,6 +1375,9 @@ int ob_ide_init(const char *path, uint32_t io_port0, uint32_t ctl_port0,
int i, j;
char nodebuff[128];
phandle_t dnode;
struct ide_channel *chan;
int io_ports[IDE_MAX_CHANNELS];
int ctl_ports[IDE_MAX_CHANNELS];
io_ports[0] = io_port0;
ctl_ports[0] = ctl_port0 + 2;
@@ -1361,7 +1385,11 @@ int ob_ide_init(const char *path, uint32_t io_port0, uint32_t ctl_port0,
ctl_ports[1] = ctl_port1 + 2;
for (i = 0; i < IDE_NUM_CHANNELS; i++, current_channel++) {
struct ide_channel *chan = &ob_ide_channels[i];
chan = malloc(sizeof(struct ide_channel));
snprintf(chan->name, sizeof(chan->name),
DEV_NAME, current_channel);
chan->mmio = 0;
@@ -1393,6 +1421,8 @@ int ob_ide_init(const char *path, uint32_t io_port0, uint32_t ctl_port0,
chan->drives[j].nr = i * 2 + j;
}
ide_add_channel(chan);
ob_ide_probe(chan);
if (!chan->present)

4
drivers/ide.h
View File

@@ -166,6 +166,10 @@ struct ide_drive {
};
struct ide_channel {
char name[32];
struct ide_channel *next;
/*
* either mmio or io_regs is set to indicate mmio or not
*/