From: Kishon Vijay Abraham I kishon@ti.com
Initialize base address of ring config registers required to natively setup ring cfg registers in the absence of Device Manager (DM) services at R5 SPL stage.
Signed-off-by: Kishon Vijay Abraham I kishon@ti.com Signed-off-by: Siddharth Vadapalli s-vadapalli@ti.com Signed-off-by: Chintan Vankar c-vankar@ti.com ---
Link to v1: https://lore.kernel.org/r/20240112064759.1801600-4-s-vadapalli@ti.com/
Changes from v1 to v2: - No changes.
drivers/soc/ti/k3-navss-ringacc.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/soc/ti/k3-navss-ringacc.c b/drivers/soc/ti/k3-navss-ringacc.c index ed39ff2fa4..0a96ed666c 100644 --- a/drivers/soc/ti/k3-navss-ringacc.c +++ b/drivers/soc/ti/k3-navss-ringacc.c @@ -1030,8 +1030,8 @@ static int k3_nav_ringacc_init(struct udevice *dev, struct k3_nav_ringacc *ringa struct k3_nav_ringacc *k3_ringacc_dmarings_init(struct udevice *dev, struct k3_ringacc_init_data *data) { + void __iomem *base_rt, *base_cfg; struct k3_nav_ringacc *ringacc; - void __iomem *base_rt; int i;
ringacc = devm_kzalloc(dev, sizeof(*ringacc), GFP_KERNEL); @@ -1049,6 +1049,10 @@ struct k3_nav_ringacc *k3_ringacc_dmarings_init(struct udevice *dev, if (!base_rt) return ERR_PTR(-EINVAL);
+ base_cfg = dev_read_addr_name_ptr(dev, "cfg"); + if (!base_cfg) + return ERR_PTR(-EINVAL); + ringacc->rings = devm_kzalloc(dev, sizeof(*ringacc->rings) * ringacc->num_rings * 2, @@ -1063,6 +1067,7 @@ struct k3_nav_ringacc *k3_ringacc_dmarings_init(struct udevice *dev, for (i = 0; i < ringacc->num_rings; i++) { struct k3_nav_ring *ring = &ringacc->rings[i];
+ ring->cfg = base_cfg + KNAV_RINGACC_CFG_REGS_STEP * i; ring->rt = base_rt + K3_DMARING_RING_RT_REGS_STEP * i; ring->parent = ringacc; ring->ring_id = i;