From 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 22 Oct 2024 10:36:11 +0000
Subject: [PATCH] 修改4g拨号为QMI,需要在系统里后台执行quectel-CM
---
kernel/drivers/memory/emif.c | 66 ++++++++++-----------------------
1 files changed, 20 insertions(+), 46 deletions(-)
diff --git a/kernel/drivers/memory/emif.c b/kernel/drivers/memory/emif.c
index 1c6b2cc..5a059be 100644
--- a/kernel/drivers/memory/emif.c
+++ b/kernel/drivers/memory/emif.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* EMIF driver
*
@@ -5,10 +6,6 @@
*
* Aneesh V <aneesh@ti.com>
* Santosh Shilimkar <santosh.shilimkar@ti.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#include <linux/err.h>
#include <linux/kernel.h>
@@ -26,8 +23,9 @@
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/pm.h>
-#include <memory/jedec_ddr.h>
+
#include "emif.h"
+#include "jedec_ddr.h"
#include "of_memory.h"
/**
@@ -133,16 +131,7 @@
return 0;
}
-static int emif_regdump_open(struct inode *inode, struct file *file)
-{
- return single_open(file, emif_regdump_show, inode->i_private);
-}
-
-static const struct file_operations emif_regdump_fops = {
- .open = emif_regdump_open,
- .read = seq_read,
- .release = single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(emif_regdump);
static int emif_mr4_show(struct seq_file *s, void *unused)
{
@@ -152,16 +141,7 @@
return 0;
}
-static int emif_mr4_open(struct inode *inode, struct file *file)
-{
- return single_open(file, emif_mr4_show, inode->i_private);
-}
-
-static const struct file_operations emif_mr4_fops = {
- .open = emif_mr4_open,
- .read = seq_read,
- .release = single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(emif_mr4);
static int __init_or_module emif_debugfs_init(struct emif_data *emif)
{
@@ -261,10 +241,9 @@
* the EMIF_PWR_MGMT_CTRL[10:8] REG_LP_MODE bit field to 0x4.
*/
if ((emif->plat_data->ip_rev == EMIF_4D) &&
- (EMIF_LP_MODE_PWR_DN == lpmode)) {
+ (lpmode == EMIF_LP_MODE_PWR_DN)) {
WARN_ONCE(1,
- "REG_LP_MODE = LP_MODE_PWR_DN(4) is prohibited by"
- "erratum i743 switch to LP_MODE_SELF_REFRESH(2)\n");
+ "REG_LP_MODE = LP_MODE_PWR_DN(4) is prohibited by erratum i743 switch to LP_MODE_SELF_REFRESH(2)\n");
/* rollback LP_MODE to Self-refresh mode */
lpmode = EMIF_LP_MODE_SELF_REFRESH;
}
@@ -693,7 +672,7 @@
u32 fifo_we_slave_ratio;
fifo_we_slave_ratio = DIV_ROUND_CLOSEST(
- EMIF_INTELLI_PHY_DQS_GATE_OPENING_DELAY_PS * 256 , t_ck);
+ EMIF_INTELLI_PHY_DQS_GATE_OPENING_DELAY_PS * 256, t_ck);
return fifo_we_slave_ratio | fifo_we_slave_ratio << 11 |
fifo_we_slave_ratio << 22;
@@ -704,7 +683,7 @@
u32 fifo_we_slave_ratio;
fifo_we_slave_ratio = DIV_ROUND_CLOSEST(
- EMIF_INTELLI_PHY_DQS_GATE_OPENING_DELAY_PS * 256 , t_ck);
+ EMIF_INTELLI_PHY_DQS_GATE_OPENING_DELAY_PS * 256, t_ck);
return fifo_we_slave_ratio >> 10 | fifo_we_slave_ratio << 1 |
fifo_we_slave_ratio << 12 | fifo_we_slave_ratio << 23;
@@ -715,7 +694,7 @@
u32 fifo_we_slave_ratio;
fifo_we_slave_ratio = DIV_ROUND_CLOSEST(
- EMIF_INTELLI_PHY_DQS_GATE_OPENING_DELAY_PS * 256 , t_ck);
+ EMIF_INTELLI_PHY_DQS_GATE_OPENING_DELAY_PS * 256, t_ck);
return fifo_we_slave_ratio >> 9 | fifo_we_slave_ratio << 2 |
fifo_we_slave_ratio << 13;
@@ -954,8 +933,7 @@
EMIF_CUSTOM_CONFIG_EXTENDED_TEMP_PART)) {
if (emif->temperature_level >= SDRAM_TEMP_HIGH_DERATE_REFRESH) {
dev_err(emif->dev,
- "%s:NOT Extended temperature capable memory."
- "Converting MR4=0x%02x as shutdown event\n",
+ "%s:NOT Extended temperature capable memory. Converting MR4=0x%02x as shutdown event\n",
__func__, emif->temperature_level);
/*
* Temperature far too high - do kernel_power_off()
@@ -1297,9 +1275,9 @@
if (of_find_property(np_emif, "cal-resistor-per-cs", &len))
dev_info->cal_resistors_per_cs = true;
- if (of_device_is_compatible(np_ddr , "jedec,lpddr2-s4"))
+ if (of_device_is_compatible(np_ddr, "jedec,lpddr2-s4"))
dev_info->type = DDR_TYPE_LPDDR2_S4;
- else if (of_device_is_compatible(np_ddr , "jedec,lpddr2-s2"))
+ else if (of_device_is_compatible(np_ddr, "jedec,lpddr2-s2"))
dev_info->type = DDR_TYPE_LPDDR2_S2;
of_property_read_u32(np_ddr, "density", &density);
@@ -1425,7 +1403,7 @@
temp = devm_kzalloc(dev, sizeof(*pd), GFP_KERNEL);
dev_info = devm_kzalloc(dev, sizeof(*dev_info), GFP_KERNEL);
- if (!emif || !pd || !dev_info) {
+ if (!emif || !temp || !dev_info) {
dev_err(dev, "%s:%d: allocation error\n", __func__, __LINE__);
goto error;
}
@@ -1517,7 +1495,7 @@
{
struct emif_data *emif;
struct resource *res;
- int irq;
+ int irq, ret;
if (pdev->dev.of_node)
emif = of_get_memory_device_details(pdev->dev.of_node, &pdev->dev);
@@ -1542,16 +1520,15 @@
goto error;
irq = platform_get_irq(pdev, 0);
- if (irq < 0) {
- dev_err(emif->dev, "%s: error getting IRQ resource - %d\n",
- __func__, irq);
+ if (irq < 0)
goto error;
- }
emif_onetime_settings(emif);
emif_debugfs_init(emif);
disable_and_clear_all_interrupts(emif);
- setup_interrupts(emif, irq);
+ ret = setup_interrupts(emif, irq);
+ if (ret)
+ goto error;
/* One-time actions taken on probing the first device */
if (!emif1) {
@@ -1592,7 +1569,7 @@
static int get_emif_reg_values(struct emif_data *emif, u32 freq,
struct emif_regs *regs)
{
- u32 cs1_used, ip_rev, phy_type;
+ u32 ip_rev, phy_type;
u32 cl, type;
const struct lpddr2_timings *timings;
const struct lpddr2_min_tck *min_tck;
@@ -1600,7 +1577,6 @@
const struct lpddr2_addressing *addressing;
struct emif_data *emif_for_calc;
struct device *dev;
- const struct emif_custom_configs *custom_configs;
dev = emif->dev;
/*
@@ -1618,12 +1594,10 @@
device_info = emif_for_calc->plat_data->device_info;
type = device_info->type;
- cs1_used = device_info->cs1_used;
ip_rev = emif_for_calc->plat_data->ip_rev;
phy_type = emif_for_calc->plat_data->phy_type;
min_tck = emif_for_calc->plat_data->min_tck;
- custom_configs = emif_for_calc->plat_data->custom_configs;
set_ddr_clk_period(freq);
--
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