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authorLinus Torvalds <torvalds@linux-foundation.org>2012-05-12 17:27:41 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-05-12 17:27:41 -0700
commit5889fc32171a41d2f306bba320715b72655dcb1a (patch)
tree7bec4883544f504664a01a600688d8fd963c2a7d
parent1bc4a5be0acbd16de4df6e4fb73a76fa92e9a521 (diff)
parent85d5c4a362add39f7491b38ed0160df1dcae1d2b (diff)
Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM: SoC fixes from Olof Johansson: "I was hoping to be done with fixes for 3.4 but we got two branches from subarch maintainers the last couple of days. So here is one last(?) pull request for arm-soc containing 7 patches: - Five of them are for shmobile dealing with SMP setup and compile failures - The remaining two are for regressions on the Samsung platforms" * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: EXYNOS: fix ctrlbit for exynos5_clk_pdma1 ARM: EXYNOS: use s5p-timer for UniversalC210 board ARM / mach-shmobile: Invalidate caches when booting secondary cores ARM / mach-shmobile: sh73a0 SMP TWD boot regression fix ARM / mach-shmobile: r8a7779 SMP TWD boot regression fix ARM: mach-shmobile: convert ag5evm to use the generic MMC GPIO hotplug helper ARM: mach-shmobile: convert mackerel to use the generic MMC GPIO hotplug helper
-rw-r--r--arch/arm/mach-exynos/Kconfig3
-rw-r--r--arch/arm/mach-exynos/clock-exynos5.c2
-rw-r--r--arch/arm/mach-exynos/mach-universal_c210.c4
-rw-r--r--arch/arm/mach-shmobile/board-ag5evm.c22
-rw-r--r--arch/arm/mach-shmobile/board-mackerel.c22
-rw-r--r--arch/arm/mach-shmobile/headsmp.S56
-rw-r--r--arch/arm/mach-shmobile/include/mach/common.h2
-rw-r--r--arch/arm/mach-shmobile/setup-r8a7779.c4
-rw-r--r--arch/arm/mach-shmobile/setup-sh73a0.c4
-rw-r--r--arch/arm/mach-shmobile/smp-r8a7779.c8
-rw-r--r--arch/arm/mach-shmobile/smp-sh73a0.c7
-rw-r--r--arch/arm/mach-shmobile/timer.c9
12 files changed, 88 insertions, 55 deletions
diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig
index e81c35f936b5..b8df521fb68e 100644
--- a/arch/arm/mach-exynos/Kconfig
+++ b/arch/arm/mach-exynos/Kconfig
@@ -232,6 +232,9 @@ config MACH_ARMLEX4210
config MACH_UNIVERSAL_C210
bool "Mobile UNIVERSAL_C210 Board"
select CPU_EXYNOS4210
+ select S5P_HRT
+ select CLKSRC_MMIO
+ select HAVE_SCHED_CLOCK
select S5P_GPIO_INT
select S5P_DEV_FIMC0
select S5P_DEV_FIMC1
diff --git a/arch/arm/mach-exynos/clock-exynos5.c b/arch/arm/mach-exynos/clock-exynos5.c
index 5cd7a8b8868c..7ac6ff4c46bd 100644
--- a/arch/arm/mach-exynos/clock-exynos5.c
+++ b/arch/arm/mach-exynos/clock-exynos5.c
@@ -678,7 +678,7 @@ static struct clk exynos5_clk_pdma1 = {
.name = "dma",
.devname = "dma-pl330.1",
.enable = exynos5_clk_ip_fsys_ctrl,
- .ctrlbit = (1 << 1),
+ .ctrlbit = (1 << 2),
};
static struct clk exynos5_clk_mdma1 = {
diff --git a/arch/arm/mach-exynos/mach-universal_c210.c b/arch/arm/mach-exynos/mach-universal_c210.c
index cb2b027f09a6..a34036eb8ba2 100644
--- a/arch/arm/mach-exynos/mach-universal_c210.c
+++ b/arch/arm/mach-exynos/mach-universal_c210.c
@@ -40,6 +40,7 @@
#include <plat/pd.h>
#include <plat/regs-fb-v4.h>
#include <plat/fimc-core.h>
+#include <plat/s5p-time.h>
#include <plat/camport.h>
#include <plat/mipi_csis.h>
@@ -1063,6 +1064,7 @@ static void __init universal_map_io(void)
exynos_init_io(NULL, 0);
s3c24xx_init_clocks(24000000);
s3c24xx_init_uarts(universal_uartcfgs, ARRAY_SIZE(universal_uartcfgs));
+ s5p_set_timer_source(S5P_PWM2, S5P_PWM4);
}
static void s5p_tv_setup(void)
@@ -1113,7 +1115,7 @@ MACHINE_START(UNIVERSAL_C210, "UNIVERSAL_C210")
.map_io = universal_map_io,
.handle_irq = gic_handle_irq,
.init_machine = universal_machine_init,
- .timer = &exynos4_timer,
+ .timer = &s5p_timer,
.reserve = &universal_reserve,
.restart = exynos4_restart,
MACHINE_END
diff --git a/arch/arm/mach-shmobile/board-ag5evm.c b/arch/arm/mach-shmobile/board-ag5evm.c
index cb224a344af0..0891ec6e27f5 100644
--- a/arch/arm/mach-shmobile/board-ag5evm.c
+++ b/arch/arm/mach-shmobile/board-ag5evm.c
@@ -365,23 +365,13 @@ static struct platform_device mipidsi0_device = {
};
/* SDHI0 */
-static irqreturn_t ag5evm_sdhi0_gpio_cd(int irq, void *arg)
-{
- struct device *dev = arg;
- struct sh_mobile_sdhi_info *info = dev->platform_data;
- struct tmio_mmc_data *pdata = info->pdata;
-
- tmio_mmc_cd_wakeup(pdata);
-
- return IRQ_HANDLED;
-}
-
static struct sh_mobile_sdhi_info sdhi0_info = {
.dma_slave_tx = SHDMA_SLAVE_SDHI0_TX,
.dma_slave_rx = SHDMA_SLAVE_SDHI0_RX,
- .tmio_flags = TMIO_MMC_HAS_IDLE_WAIT,
+ .tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_USE_GPIO_CD,
.tmio_caps = MMC_CAP_SD_HIGHSPEED,
.tmio_ocr_mask = MMC_VDD_27_28 | MMC_VDD_28_29,
+ .cd_gpio = GPIO_PORT251,
};
static struct resource sdhi0_resources[] = {
@@ -557,7 +547,6 @@ static void __init ag5evm_init(void)
lcd_backlight_reset();
/* enable SDHI0 on CN15 [SD I/F] */
- gpio_request(GPIO_FN_SDHICD0, NULL);
gpio_request(GPIO_FN_SDHIWP0, NULL);
gpio_request(GPIO_FN_SDHICMD0, NULL);
gpio_request(GPIO_FN_SDHICLK0, NULL);
@@ -566,13 +555,6 @@ static void __init ag5evm_init(void)
gpio_request(GPIO_FN_SDHID0_1, NULL);
gpio_request(GPIO_FN_SDHID0_0, NULL);
- if (!request_irq(intcs_evt2irq(0x3c0), ag5evm_sdhi0_gpio_cd,
- IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
- "sdhi0 cd", &sdhi0_device.dev))
- sdhi0_info.tmio_flags |= TMIO_MMC_HAS_COLD_CD;
- else
- pr_warn("Unable to setup SDHI0 GPIO IRQ\n");
-
/* enable SDHI1 on CN4 [WLAN I/F] */
gpio_request(GPIO_FN_SDHICLK1, NULL);
gpio_request(GPIO_FN_SDHICMD1_PU, NULL);
diff --git a/arch/arm/mach-shmobile/board-mackerel.c b/arch/arm/mach-shmobile/board-mackerel.c
index f49e28abe0ab..8c6202bb6aeb 100644
--- a/arch/arm/mach-shmobile/board-mackerel.c
+++ b/arch/arm/mach-shmobile/board-mackerel.c
@@ -1011,21 +1011,12 @@ static int slot_cn7_get_cd(struct platform_device *pdev)
}
/* SDHI0 */
-static irqreturn_t mackerel_sdhi0_gpio_cd(int irq, void *arg)
-{
- struct device *dev = arg;
- struct sh_mobile_sdhi_info *info = dev->platform_data;
- struct tmio_mmc_data *pdata = info->pdata;
-
- tmio_mmc_cd_wakeup(pdata);
-
- return IRQ_HANDLED;
-}
-
static struct sh_mobile_sdhi_info sdhi0_info = {
.dma_slave_tx = SHDMA_SLAVE_SDHI0_TX,
.dma_slave_rx = SHDMA_SLAVE_SDHI0_RX,
+ .tmio_flags = TMIO_MMC_USE_GPIO_CD,
.tmio_caps = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ,
+ .cd_gpio = GPIO_PORT172,
};
static struct resource sdhi0_resources[] = {
@@ -1384,7 +1375,6 @@ static void __init mackerel_init(void)
{
u32 srcr4;
struct clk *clk;
- int ret;
/* External clock source */
clk_set_rate(&sh7372_dv_clki_clk, 27000000);
@@ -1481,7 +1471,6 @@ static void __init mackerel_init(void)
irq_set_irq_type(IRQ21, IRQ_TYPE_LEVEL_HIGH);
/* enable SDHI0 */
- gpio_request(GPIO_FN_SDHICD0, NULL);
gpio_request(GPIO_FN_SDHIWP0, NULL);
gpio_request(GPIO_FN_SDHICMD0, NULL);
gpio_request(GPIO_FN_SDHICLK0, NULL);
@@ -1490,13 +1479,6 @@ static void __init mackerel_init(void)
gpio_request(GPIO_FN_SDHID0_1, NULL);
gpio_request(GPIO_FN_SDHID0_0, NULL);
- ret = request_irq(evt2irq(0x3340), mackerel_sdhi0_gpio_cd,
- IRQF_TRIGGER_FALLING, "sdhi0 cd", &sdhi0_device.dev);
- if (!ret)
- sdhi0_info.tmio_flags |= TMIO_MMC_HAS_COLD_CD;
- else
- pr_err("Cannot get IRQ #%d: %d\n", evt2irq(0x3340), ret);
-
#if !defined(CONFIG_MMC_SH_MMCIF) && !defined(CONFIG_MMC_SH_MMCIF_MODULE)
/* enable SDHI1 */
gpio_request(GPIO_FN_SDHICMD1, NULL);
diff --git a/arch/arm/mach-shmobile/headsmp.S b/arch/arm/mach-shmobile/headsmp.S
index 6ac015c89206..b202c1272526 100644
--- a/arch/arm/mach-shmobile/headsmp.S
+++ b/arch/arm/mach-shmobile/headsmp.S
@@ -16,6 +16,59 @@
__CPUINIT
+/* Cache invalidation nicked from arch/arm/mach-imx/head-v7.S, thanks!
+ *
+ * The secondary kernel init calls v7_flush_dcache_all before it enables
+ * the L1; however, the L1 comes out of reset in an undefined state, so
+ * the clean + invalidate performed by v7_flush_dcache_all causes a bunch
+ * of cache lines with uninitialized data and uninitialized tags to get
+ * written out to memory, which does really unpleasant things to the main
+ * processor. We fix this by performing an invalidate, rather than a
+ * clean + invalidate, before jumping into the kernel.
+ *
+ * This funciton is cloned from arch/arm/mach-tegra/headsmp.S, and needs
+ * to be called for both secondary cores startup and primary core resume
+ * procedures. Ideally, it should be moved into arch/arm/mm/cache-v7.S.
+ */
+ENTRY(v7_invalidate_l1)
+ mov r0, #0
+ mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache
+ mcr p15, 2, r0, c0, c0, 0
+ mrc p15, 1, r0, c0, c0, 0
+
+ ldr r1, =0x7fff
+ and r2, r1, r0, lsr #13
+
+ ldr r1, =0x3ff
+
+ and r3, r1, r0, lsr #3 @ NumWays - 1
+ add r2, r2, #1 @ NumSets
+
+ and r0, r0, #0x7
+ add r0, r0, #4 @ SetShift
+
+ clz r1, r3 @ WayShift
+ add r4, r3, #1 @ NumWays
+1: sub r2, r2, #1 @ NumSets--
+ mov r3, r4 @ Temp = NumWays
+2: subs r3, r3, #1 @ Temp--
+ mov r5, r3, lsl r1
+ mov r6, r2, lsl r0
+ orr r5, r5, r6 @ Reg = (Temp<<WayShift)|(NumSets<<SetShift)
+ mcr p15, 0, r5, c7, c6, 2
+ bgt 2b
+ cmp r2, #0
+ bgt 1b
+ dsb
+ isb
+ mov pc, lr
+ENDPROC(v7_invalidate_l1)
+
+ENTRY(shmobile_invalidate_start)
+ bl v7_invalidate_l1
+ b secondary_startup
+ENDPROC(shmobile_invalidate_start)
+
/*
* Reset vector for secondary CPUs.
* This will be mapped at address 0 by SBAR register.
@@ -24,4 +77,5 @@
.align 12
ENTRY(shmobile_secondary_vector)
ldr pc, 1f
-1: .long secondary_startup - PAGE_OFFSET + PLAT_PHYS_OFFSET
+1: .long shmobile_invalidate_start - PAGE_OFFSET + PLAT_PHYS_OFFSET
+ENDPROC(shmobile_secondary_vector)
diff --git a/arch/arm/mach-shmobile/include/mach/common.h b/arch/arm/mach-shmobile/include/mach/common.h
index 83ad3fe0a75f..c85e6ecda606 100644
--- a/arch/arm/mach-shmobile/include/mach/common.h
+++ b/arch/arm/mach-shmobile/include/mach/common.h
@@ -4,7 +4,6 @@
extern void shmobile_earlytimer_init(void);
extern struct sys_timer shmobile_timer;
struct twd_local_timer;
-void shmobile_twd_init(struct twd_local_timer *twd_local_timer);
extern void shmobile_setup_console(void);
extern void shmobile_secondary_vector(void);
extern int shmobile_platform_cpu_kill(unsigned int cpu);
@@ -82,5 +81,6 @@ extern int r8a7779_platform_cpu_kill(unsigned int cpu);
extern void r8a7779_secondary_init(unsigned int cpu);
extern int r8a7779_boot_secondary(unsigned int cpu);
extern void r8a7779_smp_prepare_cpus(void);
+extern void r8a7779_register_twd(void);
#endif /* __ARCH_MACH_COMMON_H */
diff --git a/arch/arm/mach-shmobile/setup-r8a7779.c b/arch/arm/mach-shmobile/setup-r8a7779.c
index 12c6f529ab89..e98e46f6cf55 100644
--- a/arch/arm/mach-shmobile/setup-r8a7779.c
+++ b/arch/arm/mach-shmobile/setup-r8a7779.c
@@ -262,10 +262,14 @@ void __init r8a7779_add_standard_devices(void)
ARRAY_SIZE(r8a7779_late_devices));
}
+/* do nothing for !CONFIG_SMP or !CONFIG_HAVE_TWD */
+void __init __weak r8a7779_register_twd(void) { }
+
static void __init r8a7779_earlytimer_init(void)
{
r8a7779_clock_init();
shmobile_earlytimer_init();
+ r8a7779_register_twd();
}
void __init r8a7779_add_early_devices(void)
diff --git a/arch/arm/mach-shmobile/setup-sh73a0.c b/arch/arm/mach-shmobile/setup-sh73a0.c
index 5bebffc10455..04a0dfe75493 100644
--- a/arch/arm/mach-shmobile/setup-sh73a0.c
+++ b/arch/arm/mach-shmobile/setup-sh73a0.c
@@ -688,10 +688,14 @@ void __init sh73a0_add_standard_devices(void)
ARRAY_SIZE(sh73a0_late_devices));
}
+/* do nothing for !CONFIG_SMP or !CONFIG_HAVE_TWD */
+void __init __weak sh73a0_register_twd(void) { }
+
static void __init sh73a0_earlytimer_init(void)
{
sh73a0_clock_init();
shmobile_earlytimer_init();
+ sh73a0_register_twd();
}
void __init sh73a0_add_early_devices(void)
diff --git a/arch/arm/mach-shmobile/smp-r8a7779.c b/arch/arm/mach-shmobile/smp-r8a7779.c
index b62e19d4c9af..6d1d0238cbf7 100644
--- a/arch/arm/mach-shmobile/smp-r8a7779.c
+++ b/arch/arm/mach-shmobile/smp-r8a7779.c
@@ -64,8 +64,15 @@ static void __iomem *scu_base_addr(void)
static DEFINE_SPINLOCK(scu_lock);
static unsigned long tmp;
+#ifdef CONFIG_HAVE_ARM_TWD
static DEFINE_TWD_LOCAL_TIMER(twd_local_timer, 0xf0000600, 29);
+void __init r8a7779_register_twd(void)
+{
+ twd_local_timer_register(&twd_local_timer);
+}
+#endif
+
static void modify_scu_cpu_psr(unsigned long set, unsigned long clr)
{
void __iomem *scu_base = scu_base_addr();
@@ -84,7 +91,6 @@ unsigned int __init r8a7779_get_core_count(void)
{
void __iomem *scu_base = scu_base_addr();
- shmobile_twd_init(&twd_local_timer);
return scu_get_core_count(scu_base);
}
diff --git a/arch/arm/mach-shmobile/smp-sh73a0.c b/arch/arm/mach-shmobile/smp-sh73a0.c
index 14ad8b052f1a..e36c41c4ab40 100644
--- a/arch/arm/mach-shmobile/smp-sh73a0.c
+++ b/arch/arm/mach-shmobile/smp-sh73a0.c
@@ -42,7 +42,13 @@ static void __iomem *scu_base_addr(void)
static DEFINE_SPINLOCK(scu_lock);
static unsigned long tmp;
+#ifdef CONFIG_HAVE_ARM_TWD
static DEFINE_TWD_LOCAL_TIMER(twd_local_timer, 0xf0000600, 29);
+void __init sh73a0_register_twd(void)
+{
+ twd_local_timer_register(&twd_local_timer);
+}
+#endif
static void modify_scu_cpu_psr(unsigned long set, unsigned long clr)
{
@@ -62,7 +68,6 @@ unsigned int __init sh73a0_get_core_count(void)
{
void __iomem *scu_base = scu_base_addr();
- shmobile_twd_init(&twd_local_timer);
return scu_get_core_count(scu_base);
}
diff --git a/arch/arm/mach-shmobile/timer.c b/arch/arm/mach-shmobile/timer.c
index 2fba5f3d1c8a..8b79e7917a23 100644
--- a/arch/arm/mach-shmobile/timer.c
+++ b/arch/arm/mach-shmobile/timer.c
@@ -46,15 +46,6 @@ static void __init shmobile_timer_init(void)
{
}
-void __init shmobile_twd_init(struct twd_local_timer *twd_local_timer)
-{
-#ifdef CONFIG_HAVE_ARM_TWD
- int err = twd_local_timer_register(twd_local_timer);
- if (err)
- pr_err("twd_local_timer_register failed %d\n", err);
-#endif
-}
-
struct sys_timer shmobile_timer = {
.init = shmobile_timer_init,
};