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-rw-r--r--Documentation/arm/Samsung/Bootloader-interface.txt1
-rw-r--r--arch/arm/mach-exynos/common.h1
-rw-r--r--arch/arm/mach-exynos/firmware.c14
-rw-r--r--arch/arm/mach-exynos/suspend.c34
-rw-r--r--arch/arm/mach-s3c24xx/mach-gta02.c42
-rw-r--r--arch/arm/mach-s3c24xx/mach-mini2440.c113
-rw-r--r--arch/arm/plat-samsung/Kconfig2
7 files changed, 98 insertions, 109 deletions
diff --git a/Documentation/arm/Samsung/Bootloader-interface.txt b/Documentation/arm/Samsung/Bootloader-interface.txt
index ed494ac0beb2..d17ed518a7ea 100644
--- a/Documentation/arm/Samsung/Bootloader-interface.txt
+++ b/Documentation/arm/Samsung/Bootloader-interface.txt
@@ -26,6 +26,7 @@ Offset Value Purpose
0x20 0xfcba0d10 (Magic cookie) AFTR
0x24 exynos_cpu_resume_ns AFTR
0x28 + 4*cpu 0x8 (Magic cookie, Exynos3250) AFTR
+0x28 0x0 or last value during resume (Exynos542x) System suspend
2. Secure mode
diff --git a/arch/arm/mach-exynos/common.h b/arch/arm/mach-exynos/common.h
index dcd21bb95e3b..f96730cce6e8 100644
--- a/arch/arm/mach-exynos/common.h
+++ b/arch/arm/mach-exynos/common.h
@@ -110,6 +110,7 @@ void exynos_firmware_init(void);
#define EXYNOS_SLEEP_MAGIC 0x00000bad
#define EXYNOS_AFTR_MAGIC 0xfcba0d10
+bool __init exynos_secure_firmware_available(void);
void exynos_set_boot_flag(unsigned int cpu, unsigned int mode);
void exynos_clear_boot_flag(unsigned int cpu, unsigned int mode);
diff --git a/arch/arm/mach-exynos/firmware.c b/arch/arm/mach-exynos/firmware.c
index be1f20fe28f4..d602e3bf3f96 100644
--- a/arch/arm/mach-exynos/firmware.c
+++ b/arch/arm/mach-exynos/firmware.c
@@ -185,7 +185,7 @@ static void exynos_l2_configure(const struct l2x0_regs *regs)
exynos_smc(SMC_CMD_L2X0SETUP2, regs->pwr_ctrl, regs->aux_ctrl, 0);
}
-void __init exynos_firmware_init(void)
+bool __init exynos_secure_firmware_available(void)
{
struct device_node *nd;
const __be32 *addr;
@@ -193,14 +193,22 @@ void __init exynos_firmware_init(void)
nd = of_find_compatible_node(NULL, NULL,
"samsung,secure-firmware");
if (!nd)
- return;
+ return false;
addr = of_get_address(nd, 0, NULL, NULL);
if (!addr) {
pr_err("%s: No address specified.\n", __func__);
- return;
+ return false;
}
+ return true;
+}
+
+void __init exynos_firmware_init(void)
+{
+ if (!exynos_secure_firmware_available())
+ return;
+
pr_info("Running under secure firmware.\n");
register_firmware_ops(&exynos_firmware_ops);
diff --git a/arch/arm/mach-exynos/suspend.c b/arch/arm/mach-exynos/suspend.c
index 7ead3acd6fa4..bb8e3985acdb 100644
--- a/arch/arm/mach-exynos/suspend.c
+++ b/arch/arm/mach-exynos/suspend.c
@@ -59,10 +59,15 @@ struct exynos_pm_data {
int (*cpu_suspend)(unsigned long);
};
-static const struct exynos_pm_data *pm_data __ro_after_init;
+/* Used only on Exynos542x/5800 */
+struct exynos_pm_state {
+ int cpu_state;
+ unsigned int pmu_spare3;
+ void __iomem *sysram_base;
+};
-static int exynos5420_cpu_state;
-static unsigned int exynos_pmu_spare3;
+static const struct exynos_pm_data *pm_data __ro_after_init;
+static struct exynos_pm_state pm_state;
/*
* GIC wake-up support
@@ -257,7 +262,7 @@ static int exynos5420_cpu_suspend(unsigned long arg)
unsigned int cluster = MPIDR_AFFINITY_LEVEL(mpidr, 1);
unsigned int cpu = MPIDR_AFFINITY_LEVEL(mpidr, 0);
- writel_relaxed(0x0, sysram_base_addr + EXYNOS5420_CPU_STATE);
+ writel_relaxed(0x0, pm_state.sysram_base + EXYNOS5420_CPU_STATE);
if (IS_ENABLED(CONFIG_EXYNOS5420_MCPM)) {
mcpm_set_entry_vector(cpu, cluster, exynos_cpu_resume);
@@ -321,7 +326,7 @@ static void exynos5420_pm_prepare(void)
/* Set wake-up mask registers */
exynos_pm_set_wakeup_mask();
- exynos_pmu_spare3 = pmu_raw_readl(S5P_PMU_SPARE3);
+ pm_state.pmu_spare3 = pmu_raw_readl(S5P_PMU_SPARE3);
/*
* The cpu state needs to be saved and restored so that the
* secondary CPUs will enter low power start. Though the U-Boot
@@ -329,8 +334,8 @@ static void exynos5420_pm_prepare(void)
* needs to restore it back in case, the primary cpu fails to
* suspend for any reason.
*/
- exynos5420_cpu_state = readl_relaxed(sysram_base_addr +
- EXYNOS5420_CPU_STATE);
+ pm_state.cpu_state = readl_relaxed(pm_state.sysram_base +
+ EXYNOS5420_CPU_STATE);
exynos_pm_enter_sleep_mode();
@@ -448,8 +453,8 @@ static void exynos5420_pm_resume(void)
EXYNOS5_ARM_CORE0_SYS_PWR_REG);
/* Restore the sysram cpu state register */
- writel_relaxed(exynos5420_cpu_state,
- sysram_base_addr + EXYNOS5420_CPU_STATE);
+ writel_relaxed(pm_state.cpu_state,
+ pm_state.sysram_base + EXYNOS5420_CPU_STATE);
pmu_raw_writel(EXYNOS5420_USE_STANDBY_WFI_ALL,
S5P_CENTRAL_SEQ_OPTION);
@@ -457,7 +462,7 @@ static void exynos5420_pm_resume(void)
if (exynos_pm_central_resume())
goto early_wakeup;
- pmu_raw_writel(exynos_pmu_spare3, S5P_PMU_SPARE3);
+ pmu_raw_writel(pm_state.pmu_spare3, S5P_PMU_SPARE3);
early_wakeup:
@@ -654,4 +659,13 @@ void __init exynos_pm_init(void)
register_syscore_ops(&exynos_pm_syscore_ops);
suspend_set_ops(&exynos_suspend_ops);
+
+ /*
+ * Applicable as of now only to Exynos542x. If booted under secure
+ * firmware, the non-secure region of sysram should be used.
+ */
+ if (exynos_secure_firmware_available())
+ pm_state.sysram_base = sysram_ns_base_addr;
+ else
+ pm_state.sysram_base = sysram_base_addr;
}
diff --git a/arch/arm/mach-s3c24xx/mach-gta02.c b/arch/arm/mach-s3c24xx/mach-gta02.c
index 9d5595c4ad99..594901f3b8e5 100644
--- a/arch/arm/mach-s3c24xx/mach-gta02.c
+++ b/arch/arm/mach-s3c24xx/mach-gta02.c
@@ -219,17 +219,6 @@ static void gta02_udc_vbus_draw(unsigned int ma)
#define gta02_udc_vbus_draw NULL
#endif
-/*
- * This is called when pc50633 is probed, unfortunately quite late in the
- * day since it is an I2C bus device. Here we can belatedly define some
- * platform devices with the advantage that we can mark the pcf50633 as the
- * parent. This makes them get suspended and resumed with their parent
- * the pcf50633 still around.
- */
-
-static void gta02_pmu_attach_child_devices(struct pcf50633 *pcf);
-
-
static char *gta02_batteries[] = {
"battery",
};
@@ -355,7 +344,6 @@ static struct pcf50633_platform_data gta02_pcf_pdata = {
},
},
- .probe_done = gta02_pmu_attach_child_devices,
.mbc_event_callback = gta02_pmu_event_callback,
};
@@ -512,36 +500,6 @@ static struct platform_device *gta02_devices[] __initdata = {
&s3c_device_ts,
};
-/* These guys DO need to be children of PMU. */
-
-static struct platform_device *gta02_devices_pmu_children[] = {
-};
-
-
-/*
- * This is called when pc50633 is probed, quite late in the day since it is an
- * I2C bus device. Here we can define platform devices with the advantage that
- * we can mark the pcf50633 as the parent. This makes them get suspended and
- * resumed with their parent the pcf50633 still around. All devices whose
- * operation depends on something from pcf50633 must have this relationship
- * made explicit like this, or suspend and resume will become an unreliable
- * hellworld.
- */
-
-static void gta02_pmu_attach_child_devices(struct pcf50633 *pcf)
-{
- int n;
-
- /* Grab a copy of the now probed PMU pointer. */
- gta02_pcf = pcf;
-
- for (n = 0; n < ARRAY_SIZE(gta02_devices_pmu_children); n++)
- gta02_devices_pmu_children[n]->dev.parent = pcf->dev;
-
- platform_add_devices(gta02_devices_pmu_children,
- ARRAY_SIZE(gta02_devices_pmu_children));
-}
-
static void gta02_poweroff(void)
{
pcf50633_reg_set_bit_mask(gta02_pcf, PCF50633_REG_OOCSHDWN, 1, 1);
diff --git a/arch/arm/mach-s3c24xx/mach-mini2440.c b/arch/arm/mach-s3c24xx/mach-mini2440.c
index f9fc1f8d2b28..50d67d760efd 100644
--- a/arch/arm/mach-s3c24xx/mach-mini2440.c
+++ b/arch/arm/mach-s3c24xx/mach-mini2440.c
@@ -64,31 +64,31 @@ static struct map_desc mini2440_iodesc[] __initdata = {
};
#define UCON S3C2410_UCON_DEFAULT
-#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
-#define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
+#define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB)
+#define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE)
static struct s3c2410_uartcfg mini2440_uartcfgs[] __initdata = {
[0] = {
- .hwport = 0,
- .flags = 0,
- .ucon = UCON,
- .ulcon = ULCON,
- .ufcon = UFCON,
+ .hwport = 0,
+ .flags = 0,
+ .ucon = UCON,
+ .ulcon = ULCON,
+ .ufcon = UFCON,
},
[1] = {
- .hwport = 1,
- .flags = 0,
- .ucon = UCON,
- .ulcon = ULCON,
- .ufcon = UFCON,
+ .hwport = 1,
+ .flags = 0,
+ .ucon = UCON,
+ .ulcon = ULCON,
+ .ufcon = UFCON,
},
[2] = {
- .hwport = 2,
- .flags = 0,
- .ucon = UCON,
- .ulcon = ULCON,
- .ufcon = UFCON,
+ .hwport = 2,
+ .flags = 0,
+ .ucon = UCON,
+ .ulcon = ULCON,
+ .ufcon = UFCON,
},
};
@@ -104,8 +104,8 @@ static struct s3c2410_udc_mach_info mini2440_udc_cfg __initdata = {
/*
* This macro simplifies the table bellow
*/
-#define _LCD_DECLARE(_clock,_xres,margin_left,margin_right,hsync, \
- _yres,margin_top,margin_bottom,vsync, refresh) \
+#define _LCD_DECLARE(_clock, _xres, margin_left, margin_right, hsync, \
+ _yres, margin_top, margin_bottom, vsync, refresh) \
.width = _xres, \
.xres = _xres, \
.height = _yres, \
@@ -128,7 +128,7 @@ static struct s3c2410fb_display mini2440_lcd_cfg[] __initdata = {
[0] = { /* mini2440 + 3.5" TFT + touchscreen */
_LCD_DECLARE(
7, /* The 3.5 is quite fast */
- 240, 21, 38, 6, /* x timing */
+ 240, 21, 38, 6, /* x timing */
320, 4, 4, 2, /* y timing */
60), /* refresh rate */
.lcdcon5 = (S3C2410_LCDCON5_FRM565 |
@@ -140,7 +140,7 @@ static struct s3c2410fb_display mini2440_lcd_cfg[] __initdata = {
[1] = { /* mini2440 + 7" TFT + touchscreen */
_LCD_DECLARE(
10, /* the 7" runs slower */
- 800, 40, 40, 48, /* x timing */
+ 800, 40, 40, 48, /* x timing */
480, 29, 3, 3, /* y timing */
50), /* refresh rate */
.lcdcon5 = (S3C2410_LCDCON5_FRM565 |
@@ -148,7 +148,7 @@ static struct s3c2410fb_display mini2440_lcd_cfg[] __initdata = {
S3C2410_LCDCON5_INVVFRAME |
S3C2410_LCDCON5_PWREN),
},
- /* The VGA shield can outout at several resolutions. All share
+ /* The VGA shield can outout at several resolutions. All share
* the same timings, however, anything smaller than 1024x768
* will only be displayed in the top left corner of a 1024x768
* XGA output unless you add optional dip switches to the shield.
@@ -158,9 +158,10 @@ static struct s3c2410fb_display mini2440_lcd_cfg[] __initdata = {
_LCD_DECLARE(
10,
1024, 1, 2, 2, /* y timing */
- 768, 200, 16, 16, /* x timing */
+ 768, 200, 16, 16, /* x timing */
24), /* refresh rate, maximum stable,
- tested with the FPGA shield */
+ * tested with the FPGA shield
+ */
.lcdcon5 = (S3C2410_LCDCON5_FRM565 |
S3C2410_LCDCON5_HWSWP),
},
@@ -196,7 +197,8 @@ static struct s3c2410fb_mach_info mini2440_fb_info __initdata = {
/* Enable VD[2..7], VD[10..15], VD[18..23] and VCLK, syncs, VDEN
* and disable the pull down resistors on pins we are using for LCD
- * data. */
+ * data.
+ */
.gpcup = (0xf << 1) | (0x3f << 10),
@@ -232,10 +234,11 @@ static struct s3c2410fb_mach_info mini2440_fb_info __initdata = {
/* MMC/SD */
static struct s3c24xx_mci_pdata mini2440_mmc_cfg __initdata = {
- .gpio_detect = S3C2410_GPG(8),
- .gpio_wprotect = S3C2410_GPH(8),
- .set_power = NULL,
- .ocr_avail = MMC_VDD_32_33|MMC_VDD_33_34,
+ .gpio_detect = S3C2410_GPG(8),
+ .gpio_wprotect = S3C2410_GPH(8),
+ .wprotect_invert = 1,
+ .set_power = NULL,
+ .ocr_avail = MMC_VDD_32_33|MMC_VDD_33_34,
};
/* NAND Flash on MINI2440 board */
@@ -254,7 +257,8 @@ static struct mtd_partition mini2440_default_nand_part[] __initdata = {
[2] = {
.name = "kernel",
/* 5 megabytes, for a kernel with no modules
- * or a uImage with a ramdisk attached */
+ * or a uImage with a ramdisk attached
+ */
.size = 0x00500000,
.offset = SZ_256K + SZ_128K,
},
@@ -271,7 +275,7 @@ static struct s3c2410_nand_set mini2440_nand_sets[] __initdata = {
.nr_chips = 1,
.nr_partitions = ARRAY_SIZE(mini2440_default_nand_part),
.partitions = mini2440_default_nand_part,
- .flash_bbt = 1, /* we use u-boot to create a BBT */
+ .flash_bbt = 1, /* we use u-boot to create a BBT */
},
};
@@ -282,7 +286,7 @@ static struct s3c2410_platform_nand mini2440_nand_info __initdata = {
.nr_sets = ARRAY_SIZE(mini2440_nand_sets),
.sets = mini2440_nand_sets,
.ignore_unset_ecc = 1,
- .ecc_mode = NAND_ECC_HW,
+ .ecc_mode = NAND_ECC_HW,
};
/* DM9000AEP 10/100 ethernet controller */
@@ -290,7 +294,7 @@ static struct s3c2410_platform_nand mini2440_nand_info __initdata = {
static struct resource mini2440_dm9k_resource[] = {
[0] = DEFINE_RES_MEM(MACH_MINI2440_DM9K_BASE, 4),
[1] = DEFINE_RES_MEM(MACH_MINI2440_DM9K_BASE + 4, 4),
- [2] = DEFINE_RES_NAMED(IRQ_EINT7, 1, NULL, IORESOURCE_IRQ \
+ [2] = DEFINE_RES_NAMED(IRQ_EINT7, 1, NULL, IORESOURCE_IRQ
| IORESOURCE_IRQ_HIGHEDGE),
};
@@ -362,7 +366,8 @@ static struct gpio_keys_button mini2440_buttons[] = {
},
#if 0
/* this pin is also known as TCLK1 and seems to already
- * marked as "in use" somehow in the kernel -- possibly wrongly */
+ * marked as "in use" somehow in the kernel -- possibly wrongly
+ */
{
.gpio = S3C2410_GPG(11), /* K6 */
.code = KEY_F6,
@@ -564,7 +569,8 @@ static char mini2440_features_str[12] __initdata = "0tb";
static int __init mini2440_features_setup(char *str)
{
if (str)
- strlcpy(mini2440_features_str, str, sizeof(mini2440_features_str));
+ strlcpy(mini2440_features_str, str,
+ sizeof(mini2440_features_str));
return 1;
}
@@ -583,10 +589,10 @@ struct mini2440_features_t {
};
static void __init mini2440_parse_features(
- struct mini2440_features_t * features,
- const char * features_str )
+ struct mini2440_features_t *features,
+ const char *features_str)
{
- const char * fp = features_str;
+ const char *fp = features_str;
features->count = 0;
features->done = 0;
@@ -598,13 +604,14 @@ static void __init mini2440_parse_features(
switch (f) {
case '0'...'9': /* tft screen */
if (features->done & FEATURE_SCREEN) {
- printk(KERN_INFO "MINI2440: '%c' ignored, "
- "screen type already set\n", f);
+ pr_info("MINI2440: '%c' ignored, screen type already set\n",
+ f);
} else {
int li = f - '0';
+
if (li >= ARRAY_SIZE(mini2440_lcd_cfg))
- printk(KERN_INFO "MINI2440: "
- "'%c' out of range LCD mode\n", f);
+ pr_info("MINI2440: '%c' out of range LCD mode\n",
+ f);
else {
features->optional[features->count++] =
&s3c_device_lcd;
@@ -615,8 +622,8 @@ static void __init mini2440_parse_features(
break;
case 'b':
if (features->done & FEATURE_BACKLIGHT)
- printk(KERN_INFO "MINI2440: '%c' ignored, "
- "backlight already set\n", f);
+ pr_info("MINI2440: '%c' ignored, backlight already set\n",
+ f);
else {
features->optional[features->count++] =
&mini2440_led_backlight;
@@ -624,13 +631,13 @@ static void __init mini2440_parse_features(
features->done |= FEATURE_BACKLIGHT;
break;
case 't':
- printk(KERN_INFO "MINI2440: '%c' ignored, "
- "touchscreen not compiled in\n", f);
+ pr_info("MINI2440: '%c' ignored, touchscreen not compiled in\n",
+ f);
break;
case 'c':
if (features->done & FEATURE_CAMERA)
- printk(KERN_INFO "MINI2440: '%c' ignored, "
- "camera already registered\n", f);
+ pr_info("MINI2440: '%c' ignored, camera already registered\n",
+ f);
else
features->optional[features->count++] =
&s3c_device_camif;
@@ -645,7 +652,7 @@ static void __init mini2440_init(void)
struct mini2440_features_t features = { 0 };
int i;
- printk(KERN_INFO "MINI2440: Option string mini2440=%s\n",
+ pr_info("MINI2440: Option string mini2440=%s\n",
mini2440_features_str);
/* Parse the feature string */
@@ -674,17 +681,17 @@ static void __init mini2440_init(void)
mini2440_fb_info.displays =
&mini2440_lcd_cfg[features.lcd_index];
- printk(KERN_INFO "MINI2440: LCD");
+ pr_info("MINI2440: LCD");
for (li = 0; li < ARRAY_SIZE(mini2440_lcd_cfg); li++)
if (li == features.lcd_index)
- printk(" [%d:%dx%d]", li,
+ pr_cont(" [%d:%dx%d]", li,
mini2440_lcd_cfg[li].width,
mini2440_lcd_cfg[li].height);
else
- printk(" %d:%dx%d", li,
+ pr_cont(" %d:%dx%d", li,
mini2440_lcd_cfg[li].width,
mini2440_lcd_cfg[li].height);
- printk("\n");
+ pr_cont("\n");
s3c24xx_fb_set_platdata(&mini2440_fb_info);
}
diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig
index b600e38364eb..377ff9cda667 100644
--- a/arch/arm/plat-samsung/Kconfig
+++ b/arch/arm/plat-samsung/Kconfig
@@ -256,7 +256,7 @@ config S3C_PM_DEBUG_LED_SMDK
config SAMSUNG_PM_CHECK
bool "S3C2410 PM Suspend Memory CRC"
- depends on PM
+ depends on PM && (PLAT_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210)
select CRC32
help
Enable the PM code's memory area checksum over sleep. This option
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-29 19:23:06 +0300