void
hw_finish (struct hw *me)
{
if (hw_finished_p (me))
hw_abort (me, "Attempt to finish finished device");
/* Fill in the (hopefully) defined address/size cells values */
if (hw_find_property (me, "#address-cells") != NULL)
me->nr_address_cells_of_hw_unit =
hw_find_integer_property (me, "#address-cells");
else
me->nr_address_cells_of_hw_unit = 2;
if (hw_find_property (me, "#size-cells") != NULL)
me->nr_size_cells_of_hw_unit =
hw_find_integer_property (me, "#size-cells");
else
me->nr_size_cells_of_hw_unit = 1;
/* Fill in the (hopefully) defined trace variable */
if (hw_find_property (me, "trace?") != NULL)
me->trace_of_hw_p = hw_find_boolean_property (me, "trace?");
/* allow global variable to define default tracing */
else if (! hw_trace_p (me)
&& hw_find_property (hw_root (me), "global-trace?") != NULL
&& hw_find_boolean_property (hw_root (me), "global-trace?"))
me->trace_of_hw_p = 1;
/* Allow the real device to override any methods */
me->base_of_hw->descriptor->to_finish (me);
me->base_of_hw->finished_p = 1;
}
signed_cell
hw_tree_find_integer_property (struct hw *root,
const char *path_to_property)
{
name_specifier spec;
if (!split_property_specifier (root, path_to_property, &spec))
hw_abort (root, "Invalid property path %s", path_to_property);
root = split_find_device (root, &spec);
if (spec.name != NULL)
hw_abort (root, "device \"%s\" not found (property \"%s\")",
spec.name, path_to_property);
return hw_find_integer_property (root, spec.property);
}
static void
attach_tx3904tmr_regs (struct hw *me,
struct tx3904tmr *controller)
{
unsigned_word attach_address;
int attach_space;
unsigned attach_size;
reg_property_spec reg;
if (hw_find_property (me, "reg") == NULL)
hw_abort (me, "Missing \"reg\" property");
if (!hw_find_reg_array_property (me, "reg", 0, ®))
hw_abort (me, "\"reg\" property must contain one addr/size entry");
hw_unit_address_to_attach_address (hw_parent (me),
®.address,
&attach_space,
&attach_address,
me);
hw_unit_size_to_attach_size (hw_parent (me),
®.size,
&attach_size, me);
hw_attach_address (hw_parent (me), 0,
attach_space, attach_address, attach_size,
me);
if(hw_find_property(me, "clock") != NULL)
controller->clock_ticks = (unsigned_4) hw_find_integer_property(me, "clock");
if(hw_find_property(me, "ext") != NULL)
controller->ext_ticks = (unsigned_4) hw_find_integer_property(me, "ext");
controller->base_address = attach_address;
}
static void
bfin_ebiu_sdc_finish (struct hw *me)
{
struct bfin_ebiu_sdc *sdc;
sdc = HW_ZALLOC (me, struct bfin_ebiu_sdc);
set_hw_data (me, sdc);
set_hw_io_read_buffer (me, bfin_ebiu_sdc_io_read_buffer);
set_hw_io_write_buffer (me, bfin_ebiu_sdc_io_write_buffer);
attach_bfin_ebiu_sdc_regs (me, sdc);
sdc->type = hw_find_integer_property (me, "type");
/* Initialize the SDC. */
sdc->sdgctl = 0xE0088849;
sdc->sdbctl = 0x00000000;
sdc->sdrrc = 0x081A;
sdc->sdstat = 0x0008;
/* XXX: We boot with 64M external memory by default ... */
sdc->sdbctl |= EBE | EBSZ_64 | EBCAW_10;
}
static void
cris_finish (struct hw *me)
{
struct cris_hw *crishw;
const struct hw_property *vec_for_int;
const struct hw_property *multiple_int;
crishw = HW_ZALLOC (me, struct cris_hw);
set_hw_data (me, crishw);
set_hw_ports (me, cris_ports);
set_hw_port_event (me, cris_port_event);
vec_for_int = hw_find_property (me, "vec-for-int");
if (vec_for_int != NULL)
{
unsigned32 vecsize;
unsigned32 i;
if (hw_property_type (vec_for_int) != array_property)
hw_abort (me, "property \"vec-for-int\" has the wrong type");
vecsize = hw_property_sizeof_array (vec_for_int) / sizeof (signed_cell);
if ((vecsize % 2) != 0)
hw_abort (me, "translation vector does not consist of even pairs");
crishw->int_to_vec
= hw_malloc (me, (vecsize/2 + 1) * sizeof (crishw->int_to_vec[0]));
for (i = 0; i < vecsize/2; i++)
{
signed_cell portval_sc;
signed_cell vec_sc;
if (!hw_find_integer_array_property (me, "vec-for-int", i*2,
&portval_sc)
|| !hw_find_integer_array_property (me, "vec-for-int", i*2 + 1,
&vec_sc)
|| portval_sc < 0
|| vec_sc < 0)
hw_abort (me, "no valid vector translation pair %u", i);
crishw->int_to_vec[i].portval = (unsigned32) portval_sc;
crishw->int_to_vec[i].vec = (unsigned32) vec_sc;
}
crishw->int_to_vec[i].portval = 0;
crishw->int_to_vec[i].vec = 0;
}
multiple_int = hw_find_property (me, "multiple-int");
if (multiple_int != NULL)
{
if (hw_property_type (multiple_int) == integer_property)
{
crishw->multiple_int_vector
= hw_find_integer_property (me, "multiple-int");
crishw->multi_int_action = cris_multint_vector;
}
else
{
const char *action = hw_find_string_property (me, "multiple-int");
if (action == NULL)
hw_abort (me, "property \"multiple-int\" has the wrong type");
if (strcmp (action, "abort") == 0)
crishw->multi_int_action = cris_multint_abort;
else if (strcmp (action, "ignore_previous") == 0)
crishw->multi_int_action = cris_multint_ignore_previous;
else
hw_abort (me, "property \"multiple-int\" must be one of <vector number>\n"
"\"abort\" and \"ignore_previous\", not \"%s\"", action);
}
}
else
crishw->multi_int_action = cris_multint_abort;
}
static void
print_properties (struct hw *me,
struct printer *p)
{
const struct hw_property *property;
for (property = hw_find_property (me, NULL);
property != NULL;
property = hw_next_property (property))
{
if (hw_parent (me) == NULL)
p->print (p->file, "/%s", property->name);
else
p->print (p->file, "%s/%s", hw_path (me), property->name);
if (property->original != NULL)
{
p->print (p->file, " !");
p->print (p->file, "%s/%s",
hw_path (property->original->owner),
property->original->name);
}
else
{
switch (property->type)
{
case array_property:
{
if ((property->sizeof_array % sizeof (signed_cell)) == 0)
{
unsigned_cell *w = (unsigned_cell*) property->array;
int cell_nr;
for (cell_nr = 0;
cell_nr < (property->sizeof_array / sizeof (unsigned_cell));
cell_nr++)
{
p->print (p->file, " 0x%lx", (unsigned long) BE2H_cell (w[cell_nr]));
}
}
else
{
unsigned8 *w = (unsigned8*)property->array;
p->print (p->file, " [");
while ((char*)w - (char*)property->array < property->sizeof_array)
{
p->print (p->file, " 0x%2x", BE2H_1 (*w));
w++;
}
}
break;
}
case boolean_property:
{
int b = hw_find_boolean_property(me, property->name);
p->print (p->file, " %s", b ? "true" : "false");
break;
}
#if NOT_YET
case ihandle_property:
{
if (property->array != NULL)
{
device_instance *instance = hw_find_ihandle_property (me, property->name);
p->print (p->file, " *%s", device_instance_path(instance));
}
else
{
/* not yet initialized, ask the device for the path */
ihandle_runtime_property_spec spec;
hw_find_ihandle_runtime_property (me, property->name, &spec);
p->print (p->file, " *%s", spec.full_path);
}
break;
}
#endif
case integer_property:
{
unsigned_word w = hw_find_integer_property (me, property->name);
p->print (p->file, " 0x%lx", (unsigned long)w);
break;
}
case range_array_property:
{
print_ranges_property (me, property, p);
break;
}
case reg_array_property:
{
print_reg_property (me, property, p);
break;
}
case string_property:
{
const char *s = hw_find_string_property (me, property->name);
print_string (me, s, p);
break;
}
case string_array_property:
{
print_string_array_property (me, property, p);
break;
}
}
}
p->print (p->file, "\n");
}
}
/* Device tree options:
Required:
.../reg <addr> <len>
.../cmdset <primary; integer> [alt; integer]
Optional:
.../size <device size (must be pow of 2)>
.../width <8|16|32>
.../write_size <integer (must be pow of 2)>
.../erase_regions <number blocks> <block size> \
[<number blocks> <block size> ...]
.../voltage <vcc min> <vcc max> <vpp min> <vpp max>
.../timeouts <typ unit write> <typ buf write> \
<typ block erase> <typ chip erase> \
<max unit write> <max buf write> \
<max block erase> <max chip erase>
.../file <file> [ro|rw]
Defaults:
size: <len> from "reg"
width: 8
write_size: 0 (not supported)
erase_region: 1 (can only erase whole chip)
voltage: 0.0V (for all)
timeouts: typ: 1µs, not supported, 1ms, not supported
max: 1µs, 1ms, 1ms, not supported
TODO: Verify user args are valid (e.g. voltage is 8 bits). */
static void
attach_cfi_regs (struct hw *me, struct cfi *cfi)
{
address_word attach_address;
int attach_space;
unsigned attach_size;
reg_property_spec reg;
bool fd_writable;
int i, ret, fd;
signed_cell ival;
if (hw_find_property (me, "reg") == NULL)
hw_abort (me, "Missing \"reg\" property");
if (hw_find_property (me, "cmdset") == NULL)
hw_abort (me, "Missing \"cmdset\" property");
if (!hw_find_reg_array_property (me, "reg", 0, ®))
hw_abort (me, "\"reg\" property must contain three addr/size entries");
hw_unit_address_to_attach_address (hw_parent (me),
®.address,
&attach_space, &attach_address, me);
hw_unit_size_to_attach_size (hw_parent (me), ®.size, &attach_size, me);
hw_attach_address (hw_parent (me),
0, attach_space, attach_address, attach_size, me);
/* Extract the desired flash command set. */
ret = hw_find_integer_array_property (me, "cmdset", 0, &ival);
if (ret != 1 && ret != 2)
hw_abort (me, "\"cmdset\" property takes 1 or 2 entries");
cfi_encode_16bit (cfi->query.p_id, ival);
for (i = 0; i < ARRAY_SIZE (cfi_cmdsets); ++i)
if (cfi_cmdsets[i]->id == ival)
cfi->cmdset = cfi_cmdsets[i];
if (cfi->cmdset == NULL)
hw_abort (me, "cmdset %u not supported", ival);
if (ret == 2)
{
hw_find_integer_array_property (me, "cmdset", 1, &ival);
cfi_encode_16bit (cfi->query.a_id, ival);
}
/* Extract the desired device size. */
if (hw_find_property (me, "size"))
cfi->dev_size = hw_find_integer_property (me, "size");
else
cfi->dev_size = attach_size;
cfi->query.dev_size = log2 (cfi->dev_size);
/* Extract the desired flash width. */
if (hw_find_property (me, "width"))
{
cfi->width = hw_find_integer_property (me, "width");
if (cfi->width != 8 && cfi->width != 16 && cfi->width != 32)
hw_abort (me, "\"width\" must be 8 or 16 or 32, not %u", cfi->width);
}
else
/* Default to 8 bit. */
cfi->width = 8;
/* Turn 8/16/32 into 1/2/4. */
cfi->width /= 8;
/* Extract optional write buffer size. */
if (hw_find_property (me, "write_size"))
{
ival = hw_find_integer_property (me, "write_size");
cfi_encode_16bit (cfi->query.max_buf_write_len, log2 (ival));
}
/* Extract optional erase regions. */
if (hw_find_property (me, "erase_regions"))
{
ret = hw_find_integer_array_property (me, "erase_regions", 0, &ival);
if (ret % 2)
hw_abort (me, "\"erase_regions\" must be specified in sets of 2");
cfi->erase_region_info = HW_NALLOC (me, unsigned char, ret / 2);
cfi->erase_regions = HW_NALLOC (me, struct cfi_erase_region, ret / 2);
for (i = 0; i < ret; i += 2)
{
unsigned blocks, size;
hw_find_integer_array_property (me, "erase_regions", i, &ival);
blocks = ival;
hw_find_integer_array_property (me, "erase_regions", i + 1, &ival);
size = ival;
cfi_add_erase_region (me, cfi, blocks, size);
}
}
