summaryrefslogtreecommitdiff
path: root/drivers/soc/fsl/qbman/qman_portal.c
diff options
context:
space:
mode:
authorMichael Ellerman <mpe@ellerman.id.au>2016-12-16 15:05:38 +1100
committerMichael Ellerman <mpe@ellerman.id.au>2016-12-16 15:05:38 +1100
commitc6f6634721c871bfab4235e1cbcad208d3063798 (patch)
tree9cc1d0307b9c5a3a84021419d5f80bea8bbfc49e /drivers/soc/fsl/qbman/qman_portal.c
parentff45000fcb56b5b0f1a14a865d3541746d838a0a (diff)
parentbaae856ebdeeaefbadd4a02cdb54b7c2277ff4dd (diff)
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/scottwood/linux into next
Freescale updates from Scott: "Highlights include 8xx hugepage support, qbman fixes/cleanup, device tree updates, and some misc cleanup."
Diffstat (limited to 'drivers/soc/fsl/qbman/qman_portal.c')
-rw-r--r--drivers/soc/fsl/qbman/qman_portal.c41
1 files changed, 30 insertions, 11 deletions
diff --git a/drivers/soc/fsl/qbman/qman_portal.c b/drivers/soc/fsl/qbman/qman_portal.c
index 148614388fca..c9a9bcb1aea2 100644
--- a/drivers/soc/fsl/qbman/qman_portal.c
+++ b/drivers/soc/fsl/qbman/qman_portal.c
@@ -30,6 +30,9 @@
#include "qman_priv.h"
+struct qman_portal *qman_dma_portal;
+EXPORT_SYMBOL(qman_dma_portal);
+
/* Enable portal interupts (as opposed to polling mode) */
#define CONFIG_FSL_DPA_PIRQ_SLOW 1
#define CONFIG_FSL_DPA_PIRQ_FAST 1
@@ -150,6 +153,10 @@ static struct qman_portal *init_pcfg(struct qm_portal_config *pcfg)
/* all assigned portals are initialized now */
qman_init_cgr_all();
}
+
+ if (!qman_dma_portal)
+ qman_dma_portal = p;
+
spin_unlock(&qman_lock);
dev_info(pcfg->dev, "Portal initialised, cpu %d\n", pcfg->cpu);
@@ -238,9 +245,9 @@ static int qman_portal_probe(struct platform_device *pdev)
struct device_node *node = dev->of_node;
struct qm_portal_config *pcfg;
struct resource *addr_phys[2];
- const u32 *channel;
void __iomem *va;
- int irq, len, cpu;
+ int irq, cpu, err;
+ u32 val;
pcfg = devm_kmalloc(dev, sizeof(*pcfg), GFP_KERNEL);
if (!pcfg)
@@ -264,13 +271,13 @@ static int qman_portal_probe(struct platform_device *pdev)
return -ENXIO;
}
- channel = of_get_property(node, "cell-index", &len);
- if (!channel || (len != 4)) {
+ err = of_property_read_u32(node, "cell-index", &val);
+ if (err) {
dev_err(dev, "Can't get %s property 'cell-index'\n",
node->full_name);
- return -ENXIO;
+ return err;
}
- pcfg->channel = *channel;
+ pcfg->channel = val;
pcfg->cpu = -1;
irq = platform_get_irq(pdev, 0);
if (irq <= 0) {
@@ -280,15 +287,19 @@ static int qman_portal_probe(struct platform_device *pdev)
pcfg->irq = irq;
va = ioremap_prot(addr_phys[0]->start, resource_size(addr_phys[0]), 0);
- if (!va)
+ if (!va) {
+ dev_err(dev, "ioremap::CE failed\n");
goto err_ioremap1;
+ }
pcfg->addr_virt[DPAA_PORTAL_CE] = va;
va = ioremap_prot(addr_phys[1]->start, resource_size(addr_phys[1]),
_PAGE_GUARDED | _PAGE_NO_CACHE);
- if (!va)
+ if (!va) {
+ dev_err(dev, "ioremap::CI failed\n");
goto err_ioremap2;
+ }
pcfg->addr_virt[DPAA_PORTAL_CI] = va;
@@ -306,8 +317,15 @@ static int qman_portal_probe(struct platform_device *pdev)
spin_unlock(&qman_lock);
pcfg->cpu = cpu;
- if (!init_pcfg(pcfg))
- goto err_ioremap2;
+ if (dma_set_mask(dev, DMA_BIT_MASK(40))) {
+ dev_err(dev, "dma_set_mask() failed\n");
+ goto err_portal_init;
+ }
+
+ if (!init_pcfg(pcfg)) {
+ dev_err(dev, "portal init failed\n");
+ goto err_portal_init;
+ }
/* clear irq affinity if assigned cpu is offline */
if (!cpu_online(cpu))
@@ -315,10 +333,11 @@ static int qman_portal_probe(struct platform_device *pdev)
return 0;
+err_portal_init:
+ iounmap(pcfg->addr_virt[DPAA_PORTAL_CI]);
err_ioremap2:
iounmap(pcfg->addr_virt[DPAA_PORTAL_CE]);
err_ioremap1:
- dev_err(dev, "ioremap failed\n");
return -ENXIO;
}