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authorOlof Johansson <olof@lixom.net>2016-07-05 22:43:41 -0700
committerOlof Johansson <olof@lixom.net>2016-07-05 22:43:41 -0700
commitf19786f95ca0e1282231ce398369c6740d3853fd (patch)
tree01f6738dff065812e15a5af8871f88a6eb6b0c03 /drivers
parent7cd4837ee2febd6478ca80eb318d6d1a72f26654 (diff)
parent187364b6fcabb9f4bfefcb62fab4fcda019b5810 (diff)
Merge tag 'samsung-drivers-4.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/drivers
Samsung drivers/soc update for v4.8, part 2: 1. Endian-friendly fixes. 2. Make SROMC driver explicitly non-module. * tag 'samsung-drivers-4.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux: cpufreq: s5pv210: use relaxed IO accesors memory: samsung: exynos-srom: make it explicitly non-modular memory: samsung: endian fixes for IO Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/cpufreq/s5pv210-cpufreq.c68
-rw-r--r--drivers/memory/samsung/exynos-srom.c39
2 files changed, 46 insertions, 61 deletions
diff --git a/drivers/cpufreq/s5pv210-cpufreq.c b/drivers/cpufreq/s5pv210-cpufreq.c
index 06d85917b6d5..392b29a0eb17 100644
--- a/drivers/cpufreq/s5pv210-cpufreq.c
+++ b/drivers/cpufreq/s5pv210-cpufreq.c
@@ -220,7 +220,7 @@ static void s5pv210_set_refresh(enum s5pv210_dmc_port ch, unsigned long freq)
tmp1 /= tmp;
- __raw_writel(tmp1, reg);
+ writel_relaxed(tmp1, reg);
}
static int s5pv210_target(struct cpufreq_policy *policy, unsigned int index)
@@ -301,29 +301,29 @@ static int s5pv210_target(struct cpufreq_policy *policy, unsigned int index)
* 1. Temporary Change divider for MFC and G3D
* SCLKA2M(200/1=200)->(200/4=50)Mhz
*/
- reg = __raw_readl(S5P_CLK_DIV2);
+ reg = readl_relaxed(S5P_CLK_DIV2);
reg &= ~(S5P_CLKDIV2_G3D_MASK | S5P_CLKDIV2_MFC_MASK);
reg |= (3 << S5P_CLKDIV2_G3D_SHIFT) |
(3 << S5P_CLKDIV2_MFC_SHIFT);
- __raw_writel(reg, S5P_CLK_DIV2);
+ writel_relaxed(reg, S5P_CLK_DIV2);
/* For MFC, G3D dividing */
do {
- reg = __raw_readl(S5P_CLKDIV_STAT0);
+ reg = readl_relaxed(S5P_CLKDIV_STAT0);
} while (reg & ((1 << 16) | (1 << 17)));
/*
* 2. Change SCLKA2M(200Mhz)to SCLKMPLL in MFC_MUX, G3D MUX
* (200/4=50)->(667/4=166)Mhz
*/
- reg = __raw_readl(S5P_CLK_SRC2);
+ reg = readl_relaxed(S5P_CLK_SRC2);
reg &= ~(S5P_CLKSRC2_G3D_MASK | S5P_CLKSRC2_MFC_MASK);
reg |= (1 << S5P_CLKSRC2_G3D_SHIFT) |
(1 << S5P_CLKSRC2_MFC_SHIFT);
- __raw_writel(reg, S5P_CLK_SRC2);
+ writel_relaxed(reg, S5P_CLK_SRC2);
do {
- reg = __raw_readl(S5P_CLKMUX_STAT1);
+ reg = readl_relaxed(S5P_CLKMUX_STAT1);
} while (reg & ((1 << 7) | (1 << 3)));
/*
@@ -335,19 +335,19 @@ static int s5pv210_target(struct cpufreq_policy *policy, unsigned int index)
s5pv210_set_refresh(DMC1, 133000);
/* 4. SCLKAPLL -> SCLKMPLL */
- reg = __raw_readl(S5P_CLK_SRC0);
+ reg = readl_relaxed(S5P_CLK_SRC0);
reg &= ~(S5P_CLKSRC0_MUX200_MASK);
reg |= (0x1 << S5P_CLKSRC0_MUX200_SHIFT);
- __raw_writel(reg, S5P_CLK_SRC0);
+ writel_relaxed(reg, S5P_CLK_SRC0);
do {
- reg = __raw_readl(S5P_CLKMUX_STAT0);
+ reg = readl_relaxed(S5P_CLKMUX_STAT0);
} while (reg & (0x1 << 18));
}
/* Change divider */
- reg = __raw_readl(S5P_CLK_DIV0);
+ reg = readl_relaxed(S5P_CLK_DIV0);
reg &= ~(S5P_CLKDIV0_APLL_MASK | S5P_CLKDIV0_A2M_MASK |
S5P_CLKDIV0_HCLK200_MASK | S5P_CLKDIV0_PCLK100_MASK |
@@ -363,25 +363,25 @@ static int s5pv210_target(struct cpufreq_policy *policy, unsigned int index)
(clkdiv_val[index][6] << S5P_CLKDIV0_HCLK133_SHIFT) |
(clkdiv_val[index][7] << S5P_CLKDIV0_PCLK66_SHIFT));
- __raw_writel(reg, S5P_CLK_DIV0);
+ writel_relaxed(reg, S5P_CLK_DIV0);
do {
- reg = __raw_readl(S5P_CLKDIV_STAT0);
+ reg = readl_relaxed(S5P_CLKDIV_STAT0);
} while (reg & 0xff);
/* ARM MCS value changed */
- reg = __raw_readl(S5P_ARM_MCS_CON);
+ reg = readl_relaxed(S5P_ARM_MCS_CON);
reg &= ~0x3;
if (index >= L3)
reg |= 0x3;
else
reg |= 0x1;
- __raw_writel(reg, S5P_ARM_MCS_CON);
+ writel_relaxed(reg, S5P_ARM_MCS_CON);
if (pll_changing) {
/* 5. Set Lock time = 30us*24Mhz = 0x2cf */
- __raw_writel(0x2cf, S5P_APLL_LOCK);
+ writel_relaxed(0x2cf, S5P_APLL_LOCK);
/*
* 6. Turn on APLL
@@ -389,12 +389,12 @@ static int s5pv210_target(struct cpufreq_policy *policy, unsigned int index)
* 6-2. Wait untile the PLL is locked
*/
if (index == L0)
- __raw_writel(APLL_VAL_1000, S5P_APLL_CON);
+ writel_relaxed(APLL_VAL_1000, S5P_APLL_CON);
else
- __raw_writel(APLL_VAL_800, S5P_APLL_CON);
+ writel_relaxed(APLL_VAL_800, S5P_APLL_CON);
do {
- reg = __raw_readl(S5P_APLL_CON);
+ reg = readl_relaxed(S5P_APLL_CON);
} while (!(reg & (0x1 << 29)));
/*
@@ -402,39 +402,39 @@ static int s5pv210_target(struct cpufreq_policy *policy, unsigned int index)
* to SCLKA2M(200Mhz) in MFC_MUX and G3D MUX
* (667/4=166)->(200/4=50)Mhz
*/
- reg = __raw_readl(S5P_CLK_SRC2);
+ reg = readl_relaxed(S5P_CLK_SRC2);
reg &= ~(S5P_CLKSRC2_G3D_MASK | S5P_CLKSRC2_MFC_MASK);
reg |= (0 << S5P_CLKSRC2_G3D_SHIFT) |
(0 << S5P_CLKSRC2_MFC_SHIFT);
- __raw_writel(reg, S5P_CLK_SRC2);
+ writel_relaxed(reg, S5P_CLK_SRC2);
do {
- reg = __raw_readl(S5P_CLKMUX_STAT1);
+ reg = readl_relaxed(S5P_CLKMUX_STAT1);
} while (reg & ((1 << 7) | (1 << 3)));
/*
* 8. Change divider for MFC and G3D
* (200/4=50)->(200/1=200)Mhz
*/
- reg = __raw_readl(S5P_CLK_DIV2);
+ reg = readl_relaxed(S5P_CLK_DIV2);
reg &= ~(S5P_CLKDIV2_G3D_MASK | S5P_CLKDIV2_MFC_MASK);
reg |= (clkdiv_val[index][10] << S5P_CLKDIV2_G3D_SHIFT) |
(clkdiv_val[index][9] << S5P_CLKDIV2_MFC_SHIFT);
- __raw_writel(reg, S5P_CLK_DIV2);
+ writel_relaxed(reg, S5P_CLK_DIV2);
/* For MFC, G3D dividing */
do {
- reg = __raw_readl(S5P_CLKDIV_STAT0);
+ reg = readl_relaxed(S5P_CLKDIV_STAT0);
} while (reg & ((1 << 16) | (1 << 17)));
/* 9. Change MPLL to APLL in MSYS_MUX */
- reg = __raw_readl(S5P_CLK_SRC0);
+ reg = readl_relaxed(S5P_CLK_SRC0);
reg &= ~(S5P_CLKSRC0_MUX200_MASK);
reg |= (0x0 << S5P_CLKSRC0_MUX200_SHIFT);
- __raw_writel(reg, S5P_CLK_SRC0);
+ writel_relaxed(reg, S5P_CLK_SRC0);
do {
- reg = __raw_readl(S5P_CLKMUX_STAT0);
+ reg = readl_relaxed(S5P_CLKMUX_STAT0);
} while (reg & (0x1 << 18));
/*
@@ -451,13 +451,13 @@ static int s5pv210_target(struct cpufreq_policy *policy, unsigned int index)
* and memory refresh parameter should be changed
*/
if (bus_speed_changing) {
- reg = __raw_readl(S5P_CLK_DIV6);
+ reg = readl_relaxed(S5P_CLK_DIV6);
reg &= ~S5P_CLKDIV6_ONEDRAM_MASK;
reg |= (clkdiv_val[index][8] << S5P_CLKDIV6_ONEDRAM_SHIFT);
- __raw_writel(reg, S5P_CLK_DIV6);
+ writel_relaxed(reg, S5P_CLK_DIV6);
do {
- reg = __raw_readl(S5P_CLKDIV_STAT1);
+ reg = readl_relaxed(S5P_CLKDIV_STAT1);
} while (reg & (1 << 15));
/* Reconfigure DRAM refresh counter value */
@@ -497,7 +497,7 @@ static int check_mem_type(void __iomem *dmc_reg)
{
unsigned long val;
- val = __raw_readl(dmc_reg + 0x4);
+ val = readl_relaxed(dmc_reg + 0x4);
val = (val & (0xf << 8));
return val >> 8;
@@ -542,10 +542,10 @@ static int s5pv210_cpu_init(struct cpufreq_policy *policy)
}
/* Find current refresh counter and frequency each DMC */
- s5pv210_dram_conf[0].refresh = (__raw_readl(dmc_base[0] + 0x30) * 1000);
+ s5pv210_dram_conf[0].refresh = (readl_relaxed(dmc_base[0] + 0x30) * 1000);
s5pv210_dram_conf[0].freq = clk_get_rate(dmc0_clk);
- s5pv210_dram_conf[1].refresh = (__raw_readl(dmc_base[1] + 0x30) * 1000);
+ s5pv210_dram_conf[1].refresh = (readl_relaxed(dmc_base[1] + 0x30) * 1000);
s5pv210_dram_conf[1].freq = clk_get_rate(dmc1_clk);
policy->suspend_freq = SLEEP_FREQ;
diff --git a/drivers/memory/samsung/exynos-srom.c b/drivers/memory/samsung/exynos-srom.c
index 96756fb4d6bd..067f53324901 100644
--- a/drivers/memory/samsung/exynos-srom.c
+++ b/drivers/memory/samsung/exynos-srom.c
@@ -11,7 +11,7 @@
*/
#include <linux/io.h>
-#include <linux/module.h>
+#include <linux/init.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_platform.h>
@@ -91,17 +91,17 @@ static int exynos_srom_configure_bank(struct exynos_srom *srom,
if (width == 2)
cs |= 1 << EXYNOS_SROM_BW__DATAWIDTH__SHIFT;
- bw = __raw_readl(srom->reg_base + EXYNOS_SROM_BW);
+ bw = readl_relaxed(srom->reg_base + EXYNOS_SROM_BW);
bw = (bw & ~(EXYNOS_SROM_BW__CS_MASK << bank)) | (cs << bank);
- __raw_writel(bw, srom->reg_base + EXYNOS_SROM_BW);
+ writel_relaxed(bw, srom->reg_base + EXYNOS_SROM_BW);
- __raw_writel(pmc | (timing[0] << EXYNOS_SROM_BCX__TACP__SHIFT) |
- (timing[1] << EXYNOS_SROM_BCX__TCAH__SHIFT) |
- (timing[2] << EXYNOS_SROM_BCX__TCOH__SHIFT) |
- (timing[3] << EXYNOS_SROM_BCX__TACC__SHIFT) |
- (timing[4] << EXYNOS_SROM_BCX__TCOS__SHIFT) |
- (timing[5] << EXYNOS_SROM_BCX__TACS__SHIFT),
- srom->reg_base + EXYNOS_SROM_BC0 + bank);
+ writel_relaxed(pmc | (timing[0] << EXYNOS_SROM_BCX__TACP__SHIFT) |
+ (timing[1] << EXYNOS_SROM_BCX__TCAH__SHIFT) |
+ (timing[2] << EXYNOS_SROM_BCX__TCOH__SHIFT) |
+ (timing[3] << EXYNOS_SROM_BCX__TACC__SHIFT) |
+ (timing[4] << EXYNOS_SROM_BCX__TCOS__SHIFT) |
+ (timing[5] << EXYNOS_SROM_BCX__TACS__SHIFT),
+ srom->reg_base + EXYNOS_SROM_BC0 + bank);
return 0;
}
@@ -159,16 +159,6 @@ static int exynos_srom_probe(struct platform_device *pdev)
return of_platform_populate(np, NULL, NULL, dev);
}
-static int exynos_srom_remove(struct platform_device *pdev)
-{
- struct exynos_srom *srom = platform_get_drvdata(pdev);
-
- kfree(srom->reg_offset);
- iounmap(srom->reg_base);
-
- return 0;
-}
-
#ifdef CONFIG_PM_SLEEP
static void exynos_srom_save(void __iomem *base,
struct exynos_srom_reg_dump *rd,
@@ -211,21 +201,16 @@ static const struct of_device_id of_exynos_srom_ids[] = {
},
{},
};
-MODULE_DEVICE_TABLE(of, of_exynos_srom_ids);
static SIMPLE_DEV_PM_OPS(exynos_srom_pm_ops, exynos_srom_suspend, exynos_srom_resume);
static struct platform_driver exynos_srom_driver = {
.probe = exynos_srom_probe,
- .remove = exynos_srom_remove,
.driver = {
.name = "exynos-srom",
.of_match_table = of_exynos_srom_ids,
.pm = &exynos_srom_pm_ops,
+ .suppress_bind_attrs = true,
},
};
-module_platform_driver(exynos_srom_driver);
-
-MODULE_AUTHOR("Pankaj Dubey <pankaj.dubey@samsung.com>");
-MODULE_DESCRIPTION("Exynos SROM Controller Driver");
-MODULE_LICENSE("GPL");
+builtin_platform_driver(exynos_srom_driver);