lkml.org 
[lkml]   [2018]   [Sep]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 03/13] memory: mtk-smi: Use a general config_port interface
Date
The config_port of mt2712 and mt8183 are the same. Use a general
config_port interface instead.

In addition, in mt2712, larb8 and larb9 are the bdpsys larbs which
are not the normal larb, their register space are different from the
normal one. thus, we can not call the general config_port. In mt8183,
CCU connects with smi-common directly, it's also not a normal larb.
Hence, we add a "larb_special_mask" for these special larbs.

This is also a prepare patch for adding mt8183 SMI support.

Signed-off-by: Yong Wu <yong.wu@mediatek.com>
---
drivers/memory/mtk-smi.c | 12 +++++-------
1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/drivers/memory/mtk-smi.c b/drivers/memory/mtk-smi.c
index 8f2d152..e37e54b 100644
--- a/drivers/memory/mtk-smi.c
+++ b/drivers/memory/mtk-smi.c
@@ -53,6 +53,7 @@ struct mtk_smi_larb_gen {
bool need_larbid;
int port_in_larb[MTK_LARB_NR_MAX + 1];
void (*config_port)(struct device *);
+ unsigned int larb_special_mask; /* The special larbs mask. */
};

struct mtk_smi {
@@ -176,17 +177,13 @@ void mtk_smi_larb_put(struct device *larbdev)
return -ENODEV;
}

-static void mtk_smi_larb_config_port_mt2712(struct device *dev)
+static void mtk_smi_larb_config_port_gen2_general(struct device *dev)
{
struct mtk_smi_larb *larb = dev_get_drvdata(dev);
u32 reg;
int i;

- /*
- * larb 8/9 is the bdpsys larb, the iommu_en is enabled defaultly.
- * Don't need to set it again.
- */
- if (larb->larbid == 8 || larb->larbid == 9)
+ if (BIT(larb->larbid) & larb->larb_gen->larb_special_mask)
return;

for_each_set_bit(i, (unsigned long *)larb->mmu, 32) {
@@ -261,7 +258,8 @@ static void mtk_smi_larb_config_port_gen1(struct device *dev)

static const struct mtk_smi_larb_gen mtk_smi_larb_mt2712 = {
.need_larbid = true,
- .config_port = mtk_smi_larb_config_port_mt2712,
+ .config_port = mtk_smi_larb_config_port_gen2_general,
+ .larb_special_mask = BIT(8) | BIT(9), /* bdpsys */
};

static const struct of_device_id mtk_smi_larb_of_ids[] = {
--
1.9.1
\
 
 \ /
  Last update: 2018-09-03 08:03    [W:0.123 / U:0.060 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site