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The i.MX 6SoloLiteLite application processors are NXP's latest additions to a growing family of multimedia-focused products offering high-performance processing optimized for lowest power consumption. The i.MX 6SoloLiteLite processors feature NXP's advanced implementation of the ARM Cortex-A9 core, which can be interfaced with LPDDR3 and LPDDR2 DRAM memory devices. Signed-off-by: Bai Ping --- arch/arm/mach-imx/Kconfig | 7 +++++++ arch/arm/mach-imx/Makefile | 1 + arch/arm/mach-imx/cpu.c | 3 +++ arch/arm/mach-imx/cpuidle-imx6sl.c | 7 +++++-- arch/arm/mach-imx/gpc.c | 8 ++++++++ arch/arm/mach-imx/mach-imx6sl.c | 10 ++++++++-- arch/arm/mach-imx/mxc.h | 6 ++++++ 7 files changed, 38 insertions(+), 4 deletions(-) diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig index 936c59d..33bcfda 100644 --- a/arch/arm/mach-imx/Kconfig +++ b/arch/arm/mach-imx/Kconfig @@ -512,6 +512,13 @@ config SOC_IMX6SL help This enables support for Freescale i.MX6 SoloLite processor. +config SOC_IMX6SLL + bool "i.MX6 SoloLiteLite support" + select SOC_IMX6 + + help + This enables support for Freescale i.MX6 SoloLiteLite processor. + config SOC_IMX6SX bool "i.MX6 SoloX support" select PINCTRL_IMX6SX diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile index cab1289..f2bf650 100644 --- a/arch/arm/mach-imx/Makefile +++ b/arch/arm/mach-imx/Makefile @@ -77,6 +77,7 @@ obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o endif obj-$(CONFIG_SOC_IMX6Q) += mach-imx6q.o obj-$(CONFIG_SOC_IMX6SL) += mach-imx6sl.o +obj-$(CONFIG_SOC_IMX6SLL) += mach-imx6sl.o obj-$(CONFIG_SOC_IMX6SX) += mach-imx6sx.o obj-$(CONFIG_SOC_IMX6UL) += mach-imx6ul.o obj-$(CONFIG_SOC_IMX7D) += mach-imx7d.o diff --git a/arch/arm/mach-imx/cpu.c b/arch/arm/mach-imx/cpu.c index b3347d3..62e8c0f 100644 --- a/arch/arm/mach-imx/cpu.c +++ b/arch/arm/mach-imx/cpu.c @@ -131,6 +131,9 @@ struct device * __init imx_soc_device_init(void) case MXC_CPU_IMX6UL: soc_id = "i.MX6UL"; break; + case MXC_CPU_IMX6SLL: + soc_id = "i.MX6SLL"; + break; case MXC_CPU_IMX7D: soc_id = "i.MX7D"; break; diff --git a/arch/arm/mach-imx/cpuidle-imx6sl.c b/arch/arm/mach-imx/cpuidle-imx6sl.c index 8d866fb..124f982 100644 --- a/arch/arm/mach-imx/cpuidle-imx6sl.c +++ b/arch/arm/mach-imx/cpuidle-imx6sl.c @@ -11,6 +11,7 @@ #include #include "common.h" +#include "hardware.h" #include "cpuidle.h" static int imx6sl_enter_wait(struct cpuidle_device *dev, @@ -21,9 +22,11 @@ static int imx6sl_enter_wait(struct cpuidle_device *dev, * Software workaround for ERR005311, see function * description for details. */ - imx6sl_set_wait_clk(true); + if (cpu_is_imx6sl()) + imx6sl_set_wait_clk(true); cpu_do_idle(); - imx6sl_set_wait_clk(false); + if (cpu_is_imx6sl()) + imx6sl_set_wait_clk(false); imx6_set_lpm(WAIT_CLOCKED); return index; diff --git a/arch/arm/mach-imx/gpc.c b/arch/arm/mach-imx/gpc.c index 1dc2a34..4ed8a63 100644 --- a/arch/arm/mach-imx/gpc.c +++ b/arch/arm/mach-imx/gpc.c @@ -26,6 +26,7 @@ #include "hardware.h" #define GPC_CNTR 0x000 +#define GPC_CNTR_L2_PGE 22 #define GPC_IMR1 0x008 #define GPC_PGC_GPU_PDN 0x260 #define GPC_PGC_GPU_PUPSCR 0x264 @@ -243,6 +244,7 @@ static int __init imx_gpc_init(struct device_node *node, { struct irq_domain *parent_domain, *domain; int i; + u32 val; if (!parent) { pr_err("%s: no parent, giving up\n", node->full_name); @@ -271,6 +273,12 @@ static int __init imx_gpc_init(struct device_node *node, for (i = 0; i < IMR_NUM; i++) writel_relaxed(~0, gpc_base + GPC_IMR1 + i * 4); + /* clear the L2_PGE bit on i.MX6SLL */ + if (cpu_is_imx6sll()) { + val = readl_relaxed(gpc_base + GPC_CNTR); + val &= ~(1 << GPC_CNTR_L2_PGE); + writel_relaxed(val, gpc_base + GPC_CNTR); + } /* * Clear the OF_POPULATED flag set in of_irq_init so that * later the GPC power domain driver will not be skipped. diff --git a/arch/arm/mach-imx/mach-imx6sl.c b/arch/arm/mach-imx/mach-imx6sl.c index 0408490..462ed9c 100644 --- a/arch/arm/mach-imx/mach-imx6sl.c +++ b/arch/arm/mach-imx/mach-imx6sl.c @@ -17,6 +17,7 @@ #include #include "common.h" +#include "hardware.h" #include "cpuidle.h" static void __init imx6sl_fec_init(void) @@ -54,7 +55,8 @@ static void __init imx6sl_init_machine(void) of_platform_default_populate(NULL, NULL, parent); - imx6sl_fec_init(); + if (cpu_is_imx6sl()) + imx6sl_fec_init(); imx_anatop_init(); imx6sl_pm_init(); } @@ -66,11 +68,15 @@ static void __init imx6sl_init_irq(void) imx_init_l2cache(); imx_src_init(); irqchip_init(); - imx6_pm_ccm_init("fsl,imx6sl-ccm"); + if (cpu_is_imx6sl()) + imx6_pm_ccm_init("fsl,imx6sl-ccm"); + else + imx6_pm_ccm_init("fsl,imx6sll-ccm"); } static const char * const imx6sl_dt_compat[] __initconst = { "fsl,imx6sl", + "fsl,imx6sll", NULL, }; diff --git a/arch/arm/mach-imx/mxc.h b/arch/arm/mach-imx/mxc.h index 34f2ff6..e047611 100644 --- a/arch/arm/mach-imx/mxc.h +++ b/arch/arm/mach-imx/mxc.h @@ -39,6 +39,7 @@ #define MXC_CPU_IMX6SX 0x62 #define MXC_CPU_IMX6Q 0x63 #define MXC_CPU_IMX6UL 0x64 +#define MXC_CPU_IMX6SLL 0x67 #define MXC_CPU_IMX7D 0x72 #define IMX_DDR_TYPE_LPDDR2 1 @@ -73,6 +74,11 @@ static inline bool cpu_is_imx6ul(void) return __mxc_cpu_type == MXC_CPU_IMX6UL; } +static inline bool cpu_is_imx6sll(void) +{ + return __mxc_cpu_type == MXC_CPU_IMX6SLL; +} + static inline bool cpu_is_imx6q(void) { return __mxc_cpu_type == MXC_CPU_IMX6Q;