leandrof/u-boot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

remoteproc: stm32: load resource table from firmware

Browse Source 
Load the optional resource table from the firmware, and write its
address in the dedicated backup register.

Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com>
Acked-by: Patrick Delaunay <patrick.delaunay@st.com>
This commit is contained in:
Fabien Dessenne 2019-10-30 14:38:33 +01:00 committed by Tom Rini
parent 790d5b3670
commit 33fd41951a
1 changed files with 16 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
drivers/remoteproc/stm32_copro.c
View File

@ -22,12 +22,14 @@
* @hold_boot_regmap: regmap for remote processor reset hold boot
* @hold_boot_offset: offset of the register controlling the hold boot setting
* @hold_boot_mask: bitmask of the register for the hold boot field
* @rsc_table_addr: resource table address
*/
struct stm32_copro_privdata {
struct reset_ctl reset_ctl;
struct regmap *hold_boot_regmap;
uint hold_boot_offset;
uint hold_boot_mask;
ulong rsc_table_addr;
};
/**
@ -139,6 +141,7 @@ static void *stm32_copro_device_to_virt(struct udevice *dev, ulong da,
static int stm32_copro_load(struct udevice *dev, ulong addr, ulong size)
{
struct stm32_copro_privdata *priv;
ulong rsc_table_size;
int ret;
priv = dev_get_priv(dev);
@ -153,6 +156,12 @@ static int stm32_copro_load(struct udevice *dev, ulong addr, ulong size)
return ret;
}
if (rproc_elf32_load_rsc_table(dev, addr, size, &priv->rsc_table_addr,
&rsc_table_size)) {
priv->rsc_table_addr = 0;
dev_warn(dev, "No valid resource table for this firmware\n");
}
return rproc_elf32_load_image(dev, addr, size);
}
@ -163,8 +172,11 @@ static int stm32_copro_load(struct udevice *dev, ulong addr, ulong size)
*/
static int stm32_copro_start(struct udevice *dev)
{
struct stm32_copro_privdata *priv;
int ret;
priv = dev_get_priv(dev);
/* move hold boot from true to false start the copro */
ret = stm32_copro_set_hold_boot(dev, false);
if (ret)
@ -177,6 +189,10 @@ static int stm32_copro_start(struct udevice *dev)
ret = stm32_copro_set_hold_boot(dev, true);
writel(ret ? TAMP_COPRO_STATE_OFF : TAMP_COPRO_STATE_CRUN,
TAMP_COPRO_STATE);
if (!ret)
/* Store rsc_address in bkp register */
writel(priv->rsc_table_addr, TAMP_COPRO_RSC_TBL_ADDRESS);
return ret;
}