redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

memory: mtk-smi: add larbid handle routine 

In the commit 3c8f4ad85c ("memory/mediatek: add support for mt2701"),
the larb->larbid was added but not initialized.
Mediatek's gen1 smi need this hardware larbid information to get the
register offset which controls whether enable iommu for this larb.
This patch add the initialize routine for larbid.

Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Honghui Zhang <honghui.zhang@mediatek.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
hifive-unleashed-5.1
Honghui Zhang 2017-08-04 09:32:26 +08:00 committed by Joerg Roedel
parent 75487860a8
commit 363932cdef
1 changed files with 12 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/memory/mtk-smi.c
View File

@ -42,6 +42,7 @@
#define SMI_SECUR_CON_VAL_DOMAIN(id) (0x3 << ((((id) & 0x7) << 2) + 1))
struct mtk_smi_larb_gen {
bool need_larbid;
int port_in_larb[MTK_LARB_NR_MAX + 1];
void (*config_port)(struct device *);
};
@ -214,6 +215,7 @@ static const struct mtk_smi_larb_gen mtk_smi_larb_mt8173 = {
};
static const struct mtk_smi_larb_gen mtk_smi_larb_mt2701 = {
.need_larbid = true,
.port_in_larb = {
LARB0_PORT_OFFSET, LARB1_PORT_OFFSET,
LARB2_PORT_OFFSET, LARB3_PORT_OFFSET
@ -240,6 +242,7 @@ static int mtk_smi_larb_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
struct device_node *smi_node;
struct platform_device *smi_pdev;
int err;
if (!dev->pm_domain)
return -EPROBE_DEFER;
@ -263,6 +266,15 @@ static int mtk_smi_larb_probe(struct platform_device *pdev)
return PTR_ERR(larb->smi.clk_smi);
larb->smi.dev = dev;
if (larb->larb_gen->need_larbid) {
err = of_property_read_u32(dev->of_node, "mediatek,larb-id",
&larb->larbid);
if (err) {
dev_err(dev, "missing larbid property\n");
return err;
}
}
smi_node = of_parse_phandle(dev->of_node, "mediatek,smi", 0);
if (!smi_node)
return -EINVAL;