Merge tag 'cleanup-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC cleanups from Arnd Bergmann:
 "These cleanup patches are mainly move stuff around and should all be
  harmless.  They are mainly split out so that other branches can be
  based on top to avoid conflicts.

  Notable changes are:

   - We finally remove all mach/timex.h, after CLOCK_TICK_RATE is no
     longer used (Uwe Kleine-König)
   - The Qualcomm MSM platform is split out into legacy mach-msm and
     new-style mach-qcom, to allow easier maintainance of the new
     hardware support without regressions (Kumar Gala)
   - A rework of some of the Kconfig logic to simplify multiplatform
     support (Rob Herring)
   - Samsung Exynos gets closer to supporting multiplatform (Sachin
     Kamat and others)
   - mach-bcm3528 gets merged into mach-bcm (Stephen Warren)
   - at91 gains some common clock framework support (Alexandre Belloni,
     Jean-Jacques Hiblot and other French people)"

* tag 'cleanup-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (89 commits)
  ARM: hisi: select HAVE_ARM_SCU only for SMP
  ARM: efm32: allow uncompress debug output
  ARM: prima2: build reset code standalone
  ARM: at91: add PWM clock
  ARM: at91: move sam9261 SoC to common clk
  ARM: at91: prepare common clk transition for sam9261 SoC
  ARM: at91: updated the at91_dt_defconfig with support for the ADS7846
  ARM: at91: dt: sam9261: Device Tree support for the at91sam9261ek
  ARM: at91: dt: defconfig: Added the sam9261 to the list of DT-enabled SOCs
  ARM: at91: dt: Add at91sam9261 dt SoC support
  ARM: at91: switch sam9rl to common clock framework
  ARM: at91/dt: define main clk frequency of at91sam9rlek
  ARM: at91/dt: define at91sam9rl clocks
  ARM: at91: prepare common clk transition for sam9rl SoCs
  ARM: at91: prepare sam9 dt boards transition to common clk
  ARM: at91: dt: sam9rl: Device Tree for the at91sam9rlek
  ARM: at91/defconfig: Add the sam9rl to the list of DT-enabled SOCs
  ARM: at91: Add at91sam9rl DT SoC support
  ARM: at91: prepare at91sam9rl DT transition
  ARM: at91/defconfig: refresh at91sam9260_9g20_defconfig
  ...

1 files changed, 21 insertions, 43 deletions

diff --git a/arch/arm/mach-bcm/kona.c b/arch/arm/mach-bcm/kona.c
index 6939d90..768bc28 100644
--- a/arch/arm/mach-bcm/kona.c
+++ b/arch/arm/mach-bcm/kona.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2013 Broadcom Corporation
+ * Copyright (C) 2012-2014 Broadcom Corporation
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
@@ -11,55 +11,33 @@
  * GNU General Public License for more details.
  */
 
-#include <linux/of_address.h>
-#include <asm/io.h>
+#include <linux/of_platform.h>
+#include <asm/hardware/cache-l2x0.h>
 
+#include "bcm_kona_smc.h"
 #include "kona.h"
 
-static void __iomem *watchdog_base;
-
-void bcm_kona_setup_restart(void)
+void __init kona_l2_cache_init(void)
 {
-	struct device_node *np_wdog;
+	int ret;
 
-	/*
-	 * The assumption is that whoever calls bcm_kona_setup_restart()
-	 * also needs a Kona Watchdog Timer entry in Device Tree, i.e. we
-	 * report an error if the DT entry is missing.
-	 */
-	np_wdog = of_find_compatible_node(NULL, NULL, "brcm,kona-wdt");
-	if (!np_wdog) {
-		pr_err("brcm,kona-wdt not found in DT, reboot disabled\n");
+	if (!IS_ENABLED(CONFIG_CACHE_L2X0))
 		return;
-	}
-	watchdog_base = of_iomap(np_wdog, 0);
-	WARN(!watchdog_base, "failed to map watchdog base");
-	of_node_put(np_wdog);
-}
-
-#define SECWDOG_OFFSET			0x00000000
-#define SECWDOG_RESERVED_MASK		0xE2000000
-#define SECWDOG_WD_LOAD_FLAG_MASK	0x10000000
-#define SECWDOG_EN_MASK			0x08000000
-#define SECWDOG_SRSTEN_MASK		0x04000000
-#define SECWDOG_CLKS_SHIFT		20
-#define SECWDOG_LOCK_SHIFT		0
 
-void bcm_kona_restart(enum reboot_mode mode, const char *cmd)
-{
-	uint32_t val;
-
-	if (!watchdog_base)
-		panic("Watchdog not mapped. Reboot failed.\n");
+	ret = bcm_kona_smc_init();
+	if (ret) {
+		pr_info("Secure API not available (%d). Skipping L2 init.\n",
+			ret);
+		return;
+	}
 
-	/* Enable watchdog2 with very short timeout. */
-	val = readl(watchdog_base + SECWDOG_OFFSET);
-	val &= SECWDOG_RESERVED_MASK | SECWDOG_WD_LOAD_FLAG_MASK;
-	val |= SECWDOG_EN_MASK | SECWDOG_SRSTEN_MASK |
-		(0x8 << SECWDOG_CLKS_SHIFT) |
-		(0x8 << SECWDOG_LOCK_SHIFT);
-	writel(val, watchdog_base + SECWDOG_OFFSET);
+	bcm_kona_smc(SSAPI_ENABLE_L2_CACHE, 0, 0, 0, 0);
 
-	while (1)
-		;
+	/*
+	 * The aux_val and aux_mask have no effect since L2 cache is already
+	 * enabled.  Pass 0s for aux_val and 1s for aux_mask for default value.
+	 */
+	ret = l2x0_of_init(0, ~0);
+	if (ret)
+		pr_err("Couldn't enable L2 cache: %d\n", ret);
 }