From d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 11 Dec 2023 02:45:28 +0000
Subject: [PATCH] add boot partition size
---
kernel/drivers/clk/mvebu/armada-37xx-periph.c | 61 ++++++++++++++++++++++++++----
1 files changed, 53 insertions(+), 8 deletions(-)
diff --git a/kernel/drivers/clk/mvebu/armada-37xx-periph.c b/kernel/drivers/clk/mvebu/armada-37xx-periph.c
index 5d10733..32ac6b6 100644
--- a/kernel/drivers/clk/mvebu/armada-37xx-periph.c
+++ b/kernel/drivers/clk/mvebu/armada-37xx-periph.c
@@ -18,6 +18,7 @@
*/
#include <linux/clk-provider.h>
+#include <linux/io.h>
#include <linux/mfd/syscon.h>
#include <linux/of.h>
#include <linux/of_device.h>
@@ -56,6 +57,15 @@
struct clk_periph_driver_data {
struct clk_hw_onecell_data *hw_data;
spinlock_t lock;
+ void __iomem *reg;
+
+ /* Storage registers for suspend/resume operations */
+ u32 tbg_sel;
+ u32 div_sel0;
+ u32 div_sel1;
+ u32 div_sel2;
+ u32 clk_sel;
+ u32 clk_dis;
};
struct clk_double_div {
@@ -294,6 +304,7 @@
PERIPH_CLK_FULL_DD(sdio, 11, 14, DIV_SEL0, DIV_SEL0, 3, 6);
PERIPH_CLK_FULL_DD(usb32_usb2_sys, 16, 16, DIV_SEL0, DIV_SEL0, 9, 12);
PERIPH_CLK_FULL_DD(usb32_ss_sys, 17, 18, DIV_SEL0, DIV_SEL0, 15, 18);
+static PERIPH_GATE(pcie, 14);
static struct clk_periph_data data_sb[] = {
REF_CLK_MUX_DD(gbe_50),
@@ -309,6 +320,7 @@
REF_CLK_FULL_DD(sdio),
REF_CLK_FULL_DD(usb32_usb2_sys),
REF_CLK_FULL_DD(usb32_ss_sys),
+ REF_CLK_GATE(pcie, "gbe_core"),
{ },
};
@@ -679,6 +691,40 @@
return PTR_ERR_OR_ZERO(*hw);
}
+static int __maybe_unused armada_3700_periph_clock_suspend(struct device *dev)
+{
+ struct clk_periph_driver_data *data = dev_get_drvdata(dev);
+
+ data->tbg_sel = readl(data->reg + TBG_SEL);
+ data->div_sel0 = readl(data->reg + DIV_SEL0);
+ data->div_sel1 = readl(data->reg + DIV_SEL1);
+ data->div_sel2 = readl(data->reg + DIV_SEL2);
+ data->clk_sel = readl(data->reg + CLK_SEL);
+ data->clk_dis = readl(data->reg + CLK_DIS);
+
+ return 0;
+}
+
+static int __maybe_unused armada_3700_periph_clock_resume(struct device *dev)
+{
+ struct clk_periph_driver_data *data = dev_get_drvdata(dev);
+
+ /* Follow the same order than what the Cortex-M3 does (ATF code) */
+ writel(data->clk_dis, data->reg + CLK_DIS);
+ writel(data->div_sel0, data->reg + DIV_SEL0);
+ writel(data->div_sel1, data->reg + DIV_SEL1);
+ writel(data->div_sel2, data->reg + DIV_SEL2);
+ writel(data->tbg_sel, data->reg + TBG_SEL);
+ writel(data->clk_sel, data->reg + CLK_SEL);
+
+ return 0;
+}
+
+static const struct dev_pm_ops armada_3700_periph_clock_pm_ops = {
+ SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(armada_3700_periph_clock_suspend,
+ armada_3700_periph_clock_resume)
+};
+
static int armada_3700_periph_clock_probe(struct platform_device *pdev)
{
struct clk_periph_driver_data *driver_data;
@@ -687,7 +733,6 @@
struct device *dev = &pdev->dev;
int num_periph = 0, i, ret;
struct resource *res;
- void __iomem *reg;
data = of_device_get_match_data(dev);
if (!data)
@@ -695,11 +740,6 @@
while (data[num_periph].name)
num_periph++;
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- reg = devm_ioremap_resource(dev, res);
- if (IS_ERR(reg))
- return PTR_ERR(reg);
driver_data = devm_kzalloc(dev, sizeof(*driver_data), GFP_KERNEL);
if (!driver_data)
@@ -713,12 +753,16 @@
return -ENOMEM;
driver_data->hw_data->num = num_periph;
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ driver_data->reg = devm_ioremap_resource(dev, res);
+ if (IS_ERR(driver_data->reg))
+ return PTR_ERR(driver_data->reg);
+
spin_lock_init(&driver_data->lock);
for (i = 0; i < num_periph; i++) {
struct clk_hw **hw = &driver_data->hw_data->hws[i];
-
- if (armada_3700_add_composite_clk(&data[i], reg,
+ if (armada_3700_add_composite_clk(&data[i], driver_data->reg,
&driver_data->lock, dev, hw))
dev_err(dev, "Can't register periph clock %s\n",
data[i].name);
@@ -756,6 +800,7 @@
.driver = {
.name = "marvell-armada-3700-periph-clock",
.of_match_table = armada_3700_periph_clock_of_match,
+ .pm = &armada_3700_periph_clock_pm_ops,
},
};
--
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