This patch introduces da8xx_rproc_parse_fw() to declare a carveout region based on reserved memory for vdev buffer allocation.
Signed-off-by: Loic Pallardy <[email protected]> --- drivers/remoteproc/da8xx_remoteproc.c | 38 +++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) diff --git a/drivers/remoteproc/da8xx_remoteproc.c b/drivers/remoteproc/da8xx_remoteproc.c index b668e32..679a076 100644 --- a/drivers/remoteproc/da8xx_remoteproc.c +++ b/drivers/remoteproc/da8xx_remoteproc.c @@ -16,6 +16,7 @@ #include <linux/irq.h> #include <linux/kernel.h> #include <linux/module.h> +#include <linux/of_address.h> #include <linux/of_reserved_mem.h> #include <linux/platform_device.h> #include <linux/remoteproc.h> @@ -179,10 +180,47 @@ static void da8xx_rproc_kick(struct rproc *rproc, int vqid) writel(SYSCFG_CHIPSIG2, drproc->chipsig); } +static int da8xx_rproc_parse_fw(struct rproc *rproc, const struct firmware *fw) +{ + struct device *dev = rproc->dev.parent; + struct rproc_mem_entry *mem; + struct device_node *node; + struct resource res; + int err; + + node = of_parse_phandle(dev->of_node, "memory-region", 0); + if (!node) { + dev_err(dev, "No memory-region specified\n"); + return -EINVAL; + } + + err = of_address_to_resource(node, 0, &res); + if (err) { + dev_err(dev, "Bad memory-region definition\n"); + return err; + } + + /* Register memory region for vdev buffer allocation */ + mem = rproc_of_resm_mem_entry_init(dev, 0, resource_size(&res), + res.start, "vdev0buffer"); + + if (!mem) + return -ENOMEM; + + rproc_add_carveout(rproc, mem); + + return rproc_elf_load_rsc_table(rproc, fw); +} + static const struct rproc_ops da8xx_rproc_ops = { .start = da8xx_rproc_start, .stop = da8xx_rproc_stop, .kick = da8xx_rproc_kick, + .parse_fw = da8xx_rproc_parse_fw, + .load = rproc_elf_load_segments, + .find_loaded_rsc_table = rproc_elf_find_loaded_rsc_table, + .sanity_check = rproc_elf_sanity_check, + .get_boot_addr = rproc_elf_get_boot_addr, }; static int da8xx_rproc_get_internal_memories(struct platform_device *pdev, -- 1.9.1
