diff options
author | Tinghan Shen <tinghan.shen@mediatek.com> | 2023-09-01 11:09:27 +0300 |
---|---|---|
committer | Mathieu Poirier <mathieu.poirier@linaro.org> | 2023-09-13 20:44:25 +0300 |
commit | fcc14c9cd5ad9186ce9d7777d443e42128ef3b48 (patch) | |
tree | eaf6b61fc4aa1647697e3639ee679d8a5105a792 /drivers/remoteproc/mtk_scp.c | |
parent | 9ea166698f48c299ca6bd4730950ca1176f51e1b (diff) | |
download | linux-fcc14c9cd5ad9186ce9d7777d443e42128ef3b48.tar.xz |
remoteproc: mediatek: Revise SCP rproc initialization flow for multi-core SCP
This is the 2nd preliminary step for probing multi-core SCP.
Initialization of configuration and L1TCM registers is extracted
to only performed once on multi-core SCP. The rest of remoteproc
initialization procedure is similar for both single and multi-core
SCP and is applied to each core.
Signed-off-by: Tinghan Shen <tinghan.shen@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Tested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20230901080935.14571-7-tinghan.shen@mediatek.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Diffstat (limited to 'drivers/remoteproc/mtk_scp.c')
-rw-r--r-- | drivers/remoteproc/mtk_scp.c | 63 |
1 files changed, 39 insertions, 24 deletions
diff --git a/drivers/remoteproc/mtk_scp.c b/drivers/remoteproc/mtk_scp.c index f88e60e4bc21..7a2ba1e1e95a 100644 --- a/drivers/remoteproc/mtk_scp.c +++ b/drivers/remoteproc/mtk_scp.c @@ -854,21 +854,17 @@ static void scp_remove_rpmsg_subdev(struct mtk_scp *scp) } } -static int scp_probe(struct platform_device *pdev) +static int scp_rproc_init(struct platform_device *pdev, + struct mtk_scp_of_cluster *scp_cluster) { struct device *dev = &pdev->dev; struct device_node *np = dev->of_node; struct mtk_scp *scp; - struct mtk_scp_of_cluster *scp_cluster; struct rproc *rproc; struct resource *res; const char *fw_name = "scp.img"; int ret, i; - scp_cluster = devm_kzalloc(dev, sizeof(*scp_cluster), GFP_KERNEL); - if (!scp_cluster) - return -ENOMEM; - ret = rproc_of_parse_firmware(dev, 0, &fw_name); if (ret < 0 && ret != -EINVAL) return ret; @@ -893,24 +889,6 @@ static int scp_probe(struct platform_device *pdev) scp->sram_size = resource_size(res); scp->sram_phys = res->start; - /* l1tcm is an optional memory region */ - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "l1tcm"); - scp->cluster->l1tcm_base = devm_ioremap_resource(dev, res); - if (IS_ERR(scp->cluster->l1tcm_base)) { - ret = PTR_ERR(scp->cluster->l1tcm_base); - if (ret != -EINVAL) { - return dev_err_probe(dev, ret, "Failed to map l1tcm memory\n"); - } - } else { - scp->cluster->l1tcm_size = resource_size(res); - scp->cluster->l1tcm_phys = res->start; - } - - scp->cluster->reg_base = devm_platform_ioremap_resource_byname(pdev, "cfg"); - if (IS_ERR(scp->cluster->reg_base)) - return dev_err_probe(dev, PTR_ERR(scp->cluster->reg_base), - "Failed to parse and map cfg memory\n"); - ret = scp->data->scp_clk_get(scp); if (ret) return ret; @@ -962,6 +940,43 @@ release_dev_mem: return ret; } +static int scp_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct mtk_scp_of_cluster *scp_cluster; + struct resource *res; + int ret; + + scp_cluster = devm_kzalloc(dev, sizeof(*scp_cluster), GFP_KERNEL); + if (!scp_cluster) + return -ENOMEM; + + scp_cluster->reg_base = devm_platform_ioremap_resource_byname(pdev, "cfg"); + if (IS_ERR(scp_cluster->reg_base)) + return dev_err_probe(dev, PTR_ERR(scp_cluster->reg_base), + "Failed to parse and map cfg memory\n"); + + /* l1tcm is an optional memory region */ + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "l1tcm"); + scp_cluster->l1tcm_base = devm_ioremap_resource(dev, res); + if (IS_ERR(scp_cluster->l1tcm_base)) { + ret = PTR_ERR(scp_cluster->l1tcm_base); + if (ret != -EINVAL) + return dev_err_probe(dev, ret, "Failed to map l1tcm memory\n"); + + scp_cluster->l1tcm_base = NULL; + } else { + scp_cluster->l1tcm_size = resource_size(res); + scp_cluster->l1tcm_phys = res->start; + } + + ret = scp_rproc_init(pdev, scp_cluster); + if (ret) + return ret; + + return 0; +} + static void scp_remove(struct platform_device *pdev) { struct mtk_scp *scp = platform_get_drvdata(pdev); |