Merge branch 'tip/perf/core' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt...

[mirror_ubuntu-eoan-kernel.git] / arch / arm / mach-imx / mm-imx3.c

diff --git a/arch/arm/mach-imx/mm-imx3.c b/arch/arm/mach-imx/mm-imx3.c
index 9f0e82ec3398dfcf7e83c8df246e54cdf53b9503..31807d2a8b7bf1a65d57c8f4cb748bb9e6697934 100644 (file)
--- a/arch/arm/mach-imx/mm-imx3.c
+++ b/arch/arm/mach-imx/mm-imx3.c
@@ -33,29 +33,32 @@
 static void imx3_idle(void)
 {
        unsigned long reg = 0;
-       __asm__ __volatile__(
-               /* disable I and D cache */
-               "mrc p15, 0, %0, c1, c0, 0\n"
-               "bic %0, %0, #0x00001000\n"
-               "bic %0, %0, #0x00000004\n"
-               "mcr p15, 0, %0, c1, c0, 0\n"
-               /* invalidate I cache */
-               "mov %0, #0\n"
-               "mcr p15, 0, %0, c7, c5, 0\n"
-               /* clear and invalidate D cache */
-               "mov %0, #0\n"
-               "mcr p15, 0, %0, c7, c14, 0\n"
-               /* WFI */
-               "mov %0, #0\n"
-               "mcr p15, 0, %0, c7, c0, 4\n"
-               "nop\n" "nop\n" "nop\n" "nop\n"
-               "nop\n" "nop\n" "nop\n"
-               /* enable I and D cache */
-               "mrc p15, 0, %0, c1, c0, 0\n"
-               "orr %0, %0, #0x00001000\n"
-               "orr %0, %0, #0x00000004\n"
-               "mcr p15, 0, %0, c1, c0, 0\n"
-               : "=r" (reg));
+
+       if (!need_resched())
+               __asm__ __volatile__(
+                       /* disable I and D cache */
+                       "mrc p15, 0, %0, c1, c0, 0\n"
+                       "bic %0, %0, #0x00001000\n"
+                       "bic %0, %0, #0x00000004\n"
+                       "mcr p15, 0, %0, c1, c0, 0\n"
+                       /* invalidate I cache */
+                       "mov %0, #0\n"
+                       "mcr p15, 0, %0, c7, c5, 0\n"
+                       /* clear and invalidate D cache */
+                       "mov %0, #0\n"
+                       "mcr p15, 0, %0, c7, c14, 0\n"
+                       /* WFI */
+                       "mov %0, #0\n"
+                       "mcr p15, 0, %0, c7, c0, 4\n"
+                       "nop\n" "nop\n" "nop\n" "nop\n"
+                       "nop\n" "nop\n" "nop\n"
+                       /* enable I and D cache */
+                       "mrc p15, 0, %0, c1, c0, 0\n"
+                       "orr %0, %0, #0x00001000\n"
+                       "orr %0, %0, #0x00000004\n"
+                       "mcr p15, 0, %0, c1, c0, 0\n"
+                       : "=r" (reg));
+       local_irq_enable();
 }
 
 static void __iomem *imx3_ioremap(unsigned long phys_addr, size_t size,
@@ -108,6 +111,7 @@ void imx3_init_l2x0(void)
        l2x0_init(l2x0_base, 0x00030024, 0x00000000);
 }
 
+#ifdef CONFIG_SOC_IMX31
 static struct map_desc mx31_io_desc[] __initdata = {
        imx_map_entry(MX31, X_MEMC, MT_DEVICE),
        imx_map_entry(MX31, AVIC, MT_DEVICE_NONSHARED),
@@ -126,33 +130,11 @@ void __init mx31_map_io(void)
        iotable_init(mx31_io_desc, ARRAY_SIZE(mx31_io_desc));
 }
 
-static struct map_desc mx35_io_desc[] __initdata = {
-       imx_map_entry(MX35, X_MEMC, MT_DEVICE),
-       imx_map_entry(MX35, AVIC, MT_DEVICE_NONSHARED),
-       imx_map_entry(MX35, AIPS1, MT_DEVICE_NONSHARED),
-       imx_map_entry(MX35, AIPS2, MT_DEVICE_NONSHARED),
-       imx_map_entry(MX35, SPBA0, MT_DEVICE_NONSHARED),
-};
-
-void __init mx35_map_io(void)
-{
-       iotable_init(mx35_io_desc, ARRAY_SIZE(mx35_io_desc));
-}
-
 void __init imx31_init_early(void)
 {
        mxc_set_cpu_type(MXC_CPU_MX31);
        mxc_arch_reset_init(MX31_IO_ADDRESS(MX31_WDOG_BASE_ADDR));
-       imx_idle = imx3_idle;
-       imx_ioremap = imx3_ioremap;
-}
-
-void __init imx35_init_early(void)
-{
-       mxc_set_cpu_type(MXC_CPU_MX35);
-       mxc_iomux_v3_init(MX35_IO_ADDRESS(MX35_IOMUXC_BASE_ADDR));
-       mxc_arch_reset_init(MX35_IO_ADDRESS(MX35_WDOG_BASE_ADDR));
-       imx_idle = imx3_idle;
+       pm_idle = imx3_idle;
        imx_ioremap = imx3_ioremap;
 }
 
@@ -161,11 +143,6 @@ void __init mx31_init_irq(void)
        mxc_init_irq(MX31_IO_ADDRESS(MX31_AVIC_BASE_ADDR));
 }
 
-void __init mx35_init_irq(void)
-{
-       mxc_init_irq(MX35_IO_ADDRESS(MX35_AVIC_BASE_ADDR));
-}
-
 static struct sdma_script_start_addrs imx31_to1_sdma_script __initdata = {
        .per_2_per_addr = 1677,
 };
@@ -199,6 +176,35 @@ void __init imx31_soc_init(void)
 
        imx_add_imx_sdma("imx31-sdma", MX31_SDMA_BASE_ADDR, MX31_INT_SDMA, &imx31_sdma_pdata);
 }
+#endif /* ifdef CONFIG_SOC_IMX31 */
+
+#ifdef CONFIG_SOC_IMX35
+static struct map_desc mx35_io_desc[] __initdata = {
+       imx_map_entry(MX35, X_MEMC, MT_DEVICE),
+       imx_map_entry(MX35, AVIC, MT_DEVICE_NONSHARED),
+       imx_map_entry(MX35, AIPS1, MT_DEVICE_NONSHARED),
+       imx_map_entry(MX35, AIPS2, MT_DEVICE_NONSHARED),
+       imx_map_entry(MX35, SPBA0, MT_DEVICE_NONSHARED),
+};
+
+void __init mx35_map_io(void)
+{
+       iotable_init(mx35_io_desc, ARRAY_SIZE(mx35_io_desc));
+}
+
+void __init imx35_init_early(void)
+{
+       mxc_set_cpu_type(MXC_CPU_MX35);
+       mxc_iomux_v3_init(MX35_IO_ADDRESS(MX35_IOMUXC_BASE_ADDR));
+       mxc_arch_reset_init(MX35_IO_ADDRESS(MX35_WDOG_BASE_ADDR));
+       pm_idle = imx3_idle;
+       imx_ioremap = imx3_ioremap;
+}
+
+void __init mx35_init_irq(void)
+{
+       mxc_init_irq(MX35_IO_ADDRESS(MX35_AVIC_BASE_ADDR));
+}
 
 static struct sdma_script_start_addrs imx35_to1_sdma_script __initdata = {
        .ap_2_ap_addr = 642,
@@ -254,3 +260,4 @@ void __init imx35_soc_init(void)
 
        imx_add_imx_sdma("imx35-sdma", MX35_SDMA_BASE_ADDR, MX35_INT_SDMA, &imx35_sdma_pdata);
 }
+#endif /* ifdef CONFIG_SOC_IMX35 */