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pciecfg:aspeed refine and remove no used.

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Signed-off-by: ryan_chen <ryan_chen@aspeedtech.com>
Change-Id: I3b1783bcebc6da40ee0102390ca4901b37b2ffa2
This commit is contained in:
ryan_chen 2022-05-25 16:56:13 +08:00 committed by Ryan Chen
parent 7d0e29a9a4
commit 85aa3d4cd4
1 changed files with 11 additions and 21 deletions
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32
drivers/pci/controller/aspeed_pciecfg.c
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@ -14,12 +14,11 @@
#include <linux/of_address.h>
struct aspeed_pciecfg {
struct device *dev;
void __iomem *reg;
struct regmap *ahbc;
struct reset_control *rst;
struct reset_control *rc_low_rst;
struct reset_control *rc_high_rst;
struct regmap *ahbc;
};
static const struct of_device_id aspeed_pciecfg_of_match[] = {
@ -30,14 +29,13 @@ static const struct of_device_id aspeed_pciecfg_of_match[] = {
#define AHBC_UNLOCK 0xAEED1A03
static void aspeed_pciecfg_init(struct aspeed_pciecfg *pciecfg)
{
//h2x reset init
reset_control_assert(pciecfg->rst);
//rcL assert
if (pciecfg->rc_low_rst) {
reset_control_deassert(pciecfg->rc_low_rst);
reset_control_assert(pciecfg->rc_low_rst);
}
//rch assert
if (pciecfg->rc_high_rst) {
reset_control_deassert(pciecfg->rc_high_rst);
reset_control_assert(pciecfg->rc_high_rst);
@ -45,19 +43,17 @@ static void aspeed_pciecfg_init(struct aspeed_pciecfg *pciecfg)
reset_control_deassert(pciecfg->rst);
//init
writel(0x1, pciecfg->reg + 0x00);
regmap_write(pciecfg->ahbc, 0x00, AHBC_UNLOCK);
regmap_update_bits(pciecfg->ahbc, 0x8C, BIT(5), BIT(5));
regmap_write(pciecfg->ahbc, 0x00, 0x1);
writel(BIT(0), pciecfg->reg + 0x00);
//ahb to pcie rc
writel(0xe0006000, pciecfg->reg + 0x60);
writel(0x00000000, pciecfg->reg + 0x64);
writel(0xFFFFFFFF, pciecfg->reg + 0x68);
//ahbc remap enable
regmap_write(pciecfg->ahbc, 0x00, AHBC_UNLOCK);
regmap_update_bits(pciecfg->ahbc, 0x8C, BIT(5), BIT(5));
regmap_write(pciecfg->ahbc, 0x00, 0x1);
}
static int aspeed_pciecfg_probe(struct platform_device *pdev)
@ -69,7 +65,6 @@ static int aspeed_pciecfg_probe(struct platform_device *pdev)
if (!pciecfg)
return -ENOMEM;
pciecfg->dev = &pdev->dev;
pciecfg->reg = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(pciecfg->reg))
return PTR_ERR(pciecfg->reg);
@ -83,7 +78,7 @@ static int aspeed_pciecfg_probe(struct platform_device *pdev)
if (of_device_is_available(of_parse_phandle(dev->of_node, "aspeed,pcie0", 0))) {
pciecfg->rc_low_rst = devm_reset_control_get_shared(&pdev->dev, "rc_low");
if (IS_ERR(pciecfg->rc_low_rst)) {
dev_err(&pdev->dev, "can't get RC low reset\n");
dev_info(&pdev->dev, "No RC low reset\n");
pciecfg->rc_low_rst = NULL;
}
} else
@ -93,7 +88,7 @@ static int aspeed_pciecfg_probe(struct platform_device *pdev)
if (of_device_is_available(of_parse_phandle(dev->of_node, "aspeed,pcie1", 0))) {
pciecfg->rc_high_rst = devm_reset_control_get_shared(&pdev->dev, "rc_high");
if (IS_ERR(pciecfg->rc_high_rst)) {
dev_err(&pdev->dev, "can't get RC high reset\n");
dev_info(&pdev->dev, "No RC high reset\n");
pciecfg->rc_high_rst = NULL;
}
} else
@ -116,9 +111,4 @@ static struct platform_driver aspeed_pciecfg_driver = {
},
.probe = aspeed_pciecfg_probe,
};
static int __init aspeed_pcicfg_init(void)
{
return platform_driver_register(&aspeed_pciecfg_driver);
}
postcore_initcall(aspeed_pcicfg_init);
builtin_platform_driver(aspeed_pciecfg_driver);