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fdt: allow fdtdec_get_addr_size_*() to translate addresses

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Some code may want to read reg values from DT, but from nodes that aren't
associated with DM devices, so using dev_get_addr_index() isn't
appropriate. In this case, fdtdec_get_addr_size_*() are the functions to
use. However, "translation" (via the chain of ranges properties in parent
nodes) may still be desirable. Add a function parameter to request that,
and implement it. Update all call sites to default to the original
behaviour.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Squashed in build fix from Stephen:
Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Stephen Warren 2016-08-05 09:47:51 -06:00 committed by Simon Glass
parent 11e44fc6bd
commit 6e06acb732
8 changed files with 36 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/core/device.c
View File

@ -671,7 +671,7 @@ fdt_addr_t dev_get_addr_index(struct udevice *dev, int index)
addr = fdtdec_get_addr_size_auto_parent(gd->fdt_blob,
dev->parent->of_offset,
dev->of_offset, "reg",
index, NULL);
index, NULL, false);
if (CONFIG_IS_ENABLED(SIMPLE_BUS) && addr != FDT_ADDR_T_NONE) {
if (device_get_uclass_id(dev->parent) ==
UCLASS_SIMPLE_BUS)

2
drivers/gpio/mpc85xx_gpio.c
View File

@ -170,7 +170,7 @@ static int mpc85xx_gpio_ofdata_to_platdata(struct udevice *dev) {
fdt_size_t size;
addr = fdtdec_get_addr_size_auto_noparent(gd->fdt_blob, dev->of_offset,
"reg", 0, &size);
"reg", 0, &size, false);
plat->addr = addr;
plat->size = size;

2
drivers/i2c/fsl_i2c.c
View File

@ -587,7 +587,7 @@ static int fsl_i2c_ofdata_to_platdata(struct udevice *bus)
fdt_size_t size;
addr = fdtdec_get_addr_size_auto_noparent(gd->fdt_blob, bus->of_offset,
"reg", 0, &size);
"reg", 0, &size, false);
dev->base = map_sysmem(CONFIG_SYS_IMMR + addr, size);

3
drivers/mmc/msm_sdhci.c
View File

@ -178,7 +178,8 @@ static int msm_ofdata_to_platdata(struct udevice *dev)
priv->base = (void *)fdtdec_get_addr_size_auto_parent(gd->fdt_blob,
parent->of_offset,
dev->of_offset,
"reg", 1, NULL);
"reg", 1, NULL,
false);
if (priv->base == (void *)FDT_ADDR_T_NONE ||
host->ioaddr == (void *)FDT_ADDR_T_NONE)
return -EINVAL;

3
drivers/net/cpsw.c
View File

@ -1146,7 +1146,8 @@ static const struct eth_ops cpsw_eth_ops = {
static inline fdt_addr_t cpsw_get_addr_by_node(const void *fdt, int node)
{
return fdtdec_get_addr_size_auto_noparent(fdt, node, "reg", 0, NULL);
return fdtdec_get_addr_size_auto_noparent(fdt, node, "reg", 0, NULL,
false);
}
static int cpsw_eth_ofdata_to_platdata(struct udevice *dev)

5
drivers/spmi/spmi-msm.c
View File

@ -153,11 +153,12 @@ static int msm_spmi_probe(struct udevice *dev)
priv->spmi_core = fdtdec_get_addr_size_auto_parent(gd->fdt_blob,
parent->of_offset,
dev->of_offset,
"reg", 1, NULL);
"reg", 1, NULL,
false);
priv->spmi_obs = fdtdec_get_addr_size_auto_parent(gd->fdt_blob,
parent->of_offset,
dev->of_offset, "reg",
2, NULL);
2, NULL, false);
if (priv->arb_chnl == FDT_ADDR_T_NONE ||
priv->spmi_core == FDT_ADDR_T_NONE ||
priv->spmi_obs == FDT_ADDR_T_NONE)

14
include/fdtdec.h
View File

@ -297,11 +297,13 @@ int fdtdec_next_compatible_subnode(const void *blob, int node,
* @param na the number of cells used to represent an address
* @param ns the number of cells used to represent a size
* @param sizep a pointer to store the size into. Use NULL if not required
* @param translate Indicates whether to translate the returned value
* using the parent node's ranges property.
* @return address, if found, or FDT_ADDR_T_NONE if not
*/
fdt_addr_t fdtdec_get_addr_size_fixed(const void *blob, int node,
const char *prop_name, int index, int na, int ns,
fdt_size_t *sizep);
fdt_size_t *sizep, bool translate);
/*
* Look up an address property in a node and return the parsed address, and
@ -317,10 +319,13 @@ fdt_addr_t fdtdec_get_addr_size_fixed(const void *blob, int node,
* @param prop_name name of property to find
* @param index which address to retrieve from a list of addresses. Often 0.
* @param sizep a pointer to store the size into. Use NULL if not required
* @param translate Indicates whether to translate the returned value
* using the parent node's ranges property.
* @return address, if found, or FDT_ADDR_T_NONE if not
*/
fdt_addr_t fdtdec_get_addr_size_auto_parent(const void *blob, int parent,
int node, const char *prop_name, int index, fdt_size_t *sizep);
int node, const char *prop_name, int index, fdt_size_t *sizep,
bool translate);
/*
* Look up an address property in a node and return the parsed address, and
@ -340,10 +345,13 @@ fdt_addr_t fdtdec_get_addr_size_auto_parent(const void *blob, int parent,
* @param prop_name name of property to find
* @param index which address to retrieve from a list of addresses. Often 0.
* @param sizep a pointer to store the size into. Use NULL if not required
* @param translate Indicates whether to translate the returned value
* using the parent node's ranges property.
* @return address, if found, or FDT_ADDR_T_NONE if not
*/
fdt_addr_t fdtdec_get_addr_size_auto_noparent(const void *blob, int node,
const char *prop_name, int index, fdt_size_t *sizep);
const char *prop_name, int index, fdt_size_t *sizep,
bool translate);
/*
* Look up an address property in a node and return the parsed address.

22
lib/fdtdec.c
View File

@ -9,6 +9,7 @@
#include <errno.h>
#include <serial.h>
#include <libfdt.h>
#include <fdt_support.h>
#include <fdtdec.h>
#include <asm/sections.h>
#include <linux/ctype.h>
@ -77,7 +78,7 @@ const char *fdtdec_get_compatible(enum fdt_compat_id id)
fdt_addr_t fdtdec_get_addr_size_fixed(const void *blob, int node,
const char *prop_name, int index, int na, int ns,
fdt_size_t *sizep)
fdt_size_t *sizep, bool translate)
{
const fdt32_t *prop, *prop_end;
const fdt32_t *prop_addr, *prop_size, *prop_after_size;
@ -112,7 +113,12 @@ fdt_addr_t fdtdec_get_addr_size_fixed(const void *blob, int node,
return FDT_ADDR_T_NONE;
}
addr = fdtdec_get_number(prop_addr, na);
#if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_OF_LIBFDT)
if (translate)
addr = fdt_translate_address(blob, node, prop_addr);
else
#endif
addr = fdtdec_get_number(prop_addr, na);
if (sizep) {
*sizep = fdtdec_get_number(prop_size, ns);
@ -126,7 +132,8 @@ fdt_addr_t fdtdec_get_addr_size_fixed(const void *blob, int node,
}
fdt_addr_t fdtdec_get_addr_size_auto_parent(const void *blob, int parent,
int node, const char *prop_name, int index, fdt_size_t *sizep)
int node, const char *prop_name, int index, fdt_size_t *sizep,
bool translate)
{
int na, ns;
@ -147,11 +154,12 @@ fdt_addr_t fdtdec_get_addr_size_auto_parent(const void *blob, int parent,
debug("na=%d, ns=%d, ", na, ns);
return fdtdec_get_addr_size_fixed(blob, node, prop_name, index, na,
ns, sizep);
ns, sizep, translate);
}
fdt_addr_t fdtdec_get_addr_size_auto_noparent(const void *blob, int node,
const char *prop_name, int index, fdt_size_t *sizep)
const char *prop_name, int index, fdt_size_t *sizep,
bool translate)
{
int parent;
@ -164,7 +172,7 @@ fdt_addr_t fdtdec_get_addr_size_auto_noparent(const void *blob, int node,
}
return fdtdec_get_addr_size_auto_parent(blob, parent, node, prop_name,
index, sizep);
index, sizep, translate);
}
fdt_addr_t fdtdec_get_addr_size(const void *blob, int node,
@ -174,7 +182,7 @@ fdt_addr_t fdtdec_get_addr_size(const void *blob, int node,
return fdtdec_get_addr_size_fixed(blob, node, prop_name, 0,
sizeof(fdt_addr_t) / sizeof(fdt32_t),
ns, sizep);
ns, sizep, false);
}
fdt_addr_t fdtdec_get_addr(const void *blob, int node,