WIP: remoteproc: q6: add support to memory-region

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>

diff --git a/drivers/remoteproc/qcom_q6v5_pil.c b/drivers/remoteproc/qcom_q6v5_pil.c
index d379b95626f42fac94c15db72f9a4e6b4c5385e4..9f8e477c122dadd9ce41057ce9f61a5ccb3ed577 100644 (file)
--- a/drivers/remoteproc/qcom_q6v5_pil.c
+++ b/drivers/remoteproc/qcom_q6v5_pil.c
@@ -24,6 +24,7 @@
 #include <linux/memblock.h>
 #include <linux/gpio/consumer.h>
 #include <linux/of.h>
+#include <linux/of_address.h>
 #include <linux/elf.h>
 #include <linux/delay.h>
 #include <linux/clk.h>
@@ -71,6 +72,9 @@ struct qproc {
        dma_addr_t              mba_da;
        size_t                  mba_size;
        struct dma_attrs        mba_attrs;
+
+       phys_addr_t reloc_phys;
+       size_t reloc_size;
 };
 
 #define VDD_MSS_UV     1000000
@@ -873,6 +877,8 @@ static int qproc_probe(struct platform_device *pdev)
        struct rproc *rproc;
        int ret;
        int i;
+       struct device_node *np;
+       struct resource r;
 
        rproc = rproc_alloc(&pdev->dev, pdev->name, &qproc_ops,
                            "mba.b00", sizeof(*qproc));
@@ -943,6 +949,24 @@ static int qproc_probe(struct platform_device *pdev)
                }
        }
 
+       np = of_parse_phandle(pdev->dev.of_node, "memory-region", 0);
+       if (!np) {
+               dev_err(&pdev->dev, "No memory region specified\n");
+       } else {
+
+               ret = of_address_to_resource(np, 0, &r);
+               of_node_put(np);
+               if (ret)
+                       return ret;
+
+               qproc->reloc_phys = r.start;
+               qproc->reloc_size = resource_size(&r);
+
+               dev_info(&pdev->dev, "Found relocation area %lu@%pad\n",
+                               qproc->reloc_size, &qproc->reloc_phys);
+       }
+
+
        ret = rproc_add(rproc);
        if (ret)
                goto remove_device_files;