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soc: ti: k3-navss-ringacc: Initialize base address of ring cfg registers

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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. Since register property is defined as "ring" for PKTDMA
and "cfg" for UDMA, configure base address of ring configuration register
accordingly.

Reviewed-by: Alexander Sverdlin <alexander.sverdlin@siemens.com>
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>
This commit is contained in:
Kishon Vijay Abraham I
2024-08-26 15:55:07 +05:30
committed by Tom Rini
parent 48ea310771
commit 40710d3388
1 changed files with 16 additions and 1 deletions
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17
drivers/soc/ti/k3-navss-ringacc.c
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@@ -1028,8 +1028,8 @@ 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);
@@ -1047,6 +1047,20 @@ struct k3_nav_ringacc *k3_ringacc_dmarings_init(struct udevice *dev,
if (!base_rt)
return ERR_PTR(-EINVAL);
/*
* Since register property is defined as "ring" for PKTDMA and
* "cfg" for UDMA, configure base address of ring configuration
* register accordingly.
*/
base_cfg = dev_remap_addr_name(dev, "ring");
pr_debug("ring %p\n", base_cfg);
if (!base_cfg) {
base_cfg = dev_remap_addr_name(dev, "cfg");
pr_debug("cfg %p\n", base_cfg);
if (!base_cfg)
return ERR_PTR(-EINVAL);
}
ringacc->rings = devm_kzalloc(dev,
sizeof(*ringacc->rings) *
ringacc->num_rings * 2,
@@ -1061,6 +1075,7 @@ 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;