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Message-Id: <ec63e5978fd5ac5d308ede5916e648ba925818eb.1265173480.git.amit.kucheria@canonical.com> Date: Tue, 2 Feb 2010 21:16:26 -0800 From: Amit Kucheria <amit.kucheria@...onical.com> To: List Linux Kernel <linux-kernel@...r.kernel.org> Cc: linux-arm-kernel@...ts.infradead.org, linux@....linux.org.uk, s.hauer@...gutronix.de, valentin.longchamp@...l.ch, daniel@...aq.de, grant.likely@...retlab.ca, Dinh.Nguyen@...escale.com, r.herring@...escale.com, bryan.wu@...onical.com Subject: [PATCHv2 04/11] mxc: changes to common plat-mxc code to add support for i.MX5 Changes separted to help in the review process Signed-off-by: Amit Kucheria <amit.kucheria@...onical.com> --- arch/arm/plat-mxc/include/mach/common.h | 4 +++ arch/arm/plat-mxc/include/mach/debug-macro.S | 9 +++++++ arch/arm/plat-mxc/include/mach/entry-macro.S | 34 +++++++++++++++++++++++++- arch/arm/plat-mxc/include/mach/hardware.h | 4 +++ arch/arm/plat-mxc/include/mach/irqs.h | 9 ++++++- arch/arm/plat-mxc/include/mach/memory.h | 3 ++ arch/arm/plat-mxc/include/mach/mxc.h | 13 ++++++++++ arch/arm/plat-mxc/include/mach/timex.h | 2 + arch/arm/plat-mxc/time.c | 6 ++-- 9 files changed, 79 insertions(+), 5 deletions(-) diff --git a/arch/arm/plat-mxc/include/mach/common.h b/arch/arm/plat-mxc/include/mach/common.h index 286cb9b..5250a3f 100644 --- a/arch/arm/plat-mxc/include/mach/common.h +++ b/arch/arm/plat-mxc/include/mach/common.h @@ -20,8 +20,10 @@ extern void mx25_map_io(void); extern void mx27_map_io(void); extern void mx31_map_io(void); extern void mx35_map_io(void); +extern void mx51_map_io(void); extern void mxc91231_map_io(void); extern void mxc_init_irq(void __iomem *); +extern void tzic_init_irq(void __iomem *); extern void mx1_init_irq(void); extern void mx21_init_irq(void); extern void mx25_init_irq(void); @@ -36,6 +38,8 @@ extern int mx25_clocks_init(unsigned long fref); extern int mx27_clocks_init(unsigned long fref); extern int mx31_clocks_init(unsigned long fref); extern int mx35_clocks_init(void); +extern int mx51_clocks_init(unsigned long ckil, unsigned long osc, + unsigned long ckih1, unsigned long ckih2); extern int mxc91231_clocks_init(unsigned long fref); extern int mxc_register_gpios(void); extern int mxc_register_device(struct platform_device *pdev, void *data); diff --git a/arch/arm/plat-mxc/include/mach/debug-macro.S b/arch/arm/plat-mxc/include/mach/debug-macro.S index 15b2b14..9fe7300 100644 --- a/arch/arm/plat-mxc/include/mach/debug-macro.S +++ b/arch/arm/plat-mxc/include/mach/debug-macro.S @@ -44,6 +44,15 @@ #define UART_VADDR AIPS1_IO_ADDRESS(UART1_BASE_ADDR) #endif +#ifdef CONFIG_ARCH_MX5 +#ifdef UART_PADDR +#error "CONFIG_DEBUG_LL is incompatible with multiple archs" +#endif +#include <mach/mx51.h> +#define UART_PADDR UART1_BASE_ADDR +#define UART_VADDR AIPS1_IO_ADDRESS(UART1_BASE_ADDR) +#endif + #ifdef CONFIG_ARCH_MXC91231 #ifdef UART_PADDR #error "CONFIG_DEBUG_LL is incompatible with multiple archs" diff --git a/arch/arm/plat-mxc/include/mach/entry-macro.S b/arch/arm/plat-mxc/include/mach/entry-macro.S index 7cf290e..aeb0869 100644 --- a/arch/arm/plat-mxc/include/mach/entry-macro.S +++ b/arch/arm/plat-mxc/include/mach/entry-macro.S @@ -1,6 +1,6 @@ /* * Copyright (C) 2007 Lennert Buytenhek <buytenh@...tstofly.org> - * Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved. + * Copyright 2004-2009 Freescale Semiconductor, Inc. All Rights Reserved. */ /* @@ -18,11 +18,16 @@ .endm .macro get_irqnr_preamble, base, tmp +#ifndef CONFIG_MXC_TZIC ldr \base, =avic_base ldr \base, [\base] #ifdef CONFIG_MXC_IRQ_PRIOR ldr r4, [\base, #AVIC_NIMASK] #endif +#elif defined CONFIG_MXC_TZIC + ldr \base, =tzic_base + ldr \base, [\base] +#endif /* CONFIG_MXC_TZIC */ .endm .macro arch_ret_to_user, tmp1, tmp2 @@ -32,6 +37,7 @@ @ and returns its number in irqnr @ and returns if an interrupt occured in irqstat .macro get_irqnr_and_base, irqnr, irqstat, base, tmp +#ifndef CONFIG_MXC_TZIC @ Load offset & priority of the highest priority @ interrupt pending from AVIC_NIVECSR ldr \irqstat, [\base, #0x40] @@ -45,6 +51,32 @@ strne \tmp, [\base, #AVIC_NIMASK] streq r4, [\base, #AVIC_NIMASK] #endif +#elif defined CONFIG_MXC_TZIC + @ Load offset & priority of the highest priority + @ interrupt pending. + @ 0xD80 is HIPND0 register + mov \irqnr, #0 + mov \irqstat, #0x0D80 +1000: + ldr \tmp, [\irqstat, \base] + cmp \tmp, #0 + bne 1001f + addeq \irqnr, \irqnr, #32 + addeq \irqstat, \irqstat, #4 + cmp \irqnr, #128 + blo 1000b + b 2001f +1001: mov \irqstat, #1 +1002: tst \tmp, \irqstat + bne 2002f + movs \tmp, \tmp, lsr #1 + addne \irqnr, \irqnr, #1 + bne 1002b +2001: + mov \irqnr, #0 +2002: + movs \irqnr, \irqnr +#endif .endm @ irq priority table (not used) diff --git a/arch/arm/plat-mxc/include/mach/hardware.h b/arch/arm/plat-mxc/include/mach/hardware.h index 78db754..55ebe88 100644 --- a/arch/arm/plat-mxc/include/mach/hardware.h +++ b/arch/arm/plat-mxc/include/mach/hardware.h @@ -22,6 +22,10 @@ #include <asm/sizes.h> +#ifdef CONFIG_ARCH_MX5 +#include <mach/mx51.h> +#endif + #ifdef CONFIG_ARCH_MX3 #include <mach/mx3x.h> #include <mach/mx31.h> diff --git a/arch/arm/plat-mxc/include/mach/irqs.h b/arch/arm/plat-mxc/include/mach/irqs.h index ead9d59..24c066e 100644 --- a/arch/arm/plat-mxc/include/mach/irqs.h +++ b/arch/arm/plat-mxc/include/mach/irqs.h @@ -12,9 +12,13 @@ #define __ASM_ARCH_MXC_IRQS_H__ /* - * So far all i.MX SoCs have 64 internal interrupts + * SoCs with TZIC interrupt controller have 128 IRQs, those with AVIC have 64 */ +#ifdef CONFIG_MXC_TZIC +#define MXC_INTERNAL_IRQS 128 +#else #define MXC_INTERNAL_IRQS 64 +#endif #define MXC_GPIO_IRQ_START MXC_INTERNAL_IRQS @@ -26,6 +30,8 @@ #define MXC_GPIO_IRQS (32 * 3) #elif defined CONFIG_ARCH_MX25 #define MXC_GPIO_IRQS (32 * 4) +#elif defined CONFIG_ARCH_MX5 +#define MXC_GPIO_IRQS (32 * 4) #elif defined CONFIG_ARCH_MXC91231 #define MXC_GPIO_IRQS (32 * 4) #endif @@ -46,6 +52,7 @@ #else #define MX3_IPU_IRQS 0 #endif +/* REVISIT: Add IPU irqs on IMX51 */ #define NR_IRQS (MXC_IPU_IRQ_START + MX3_IPU_IRQS) diff --git a/arch/arm/plat-mxc/include/mach/memory.h b/arch/arm/plat-mxc/include/mach/memory.h index d3afafd..e46626e 100644 --- a/arch/arm/plat-mxc/include/mach/memory.h +++ b/arch/arm/plat-mxc/include/mach/memory.h @@ -27,6 +27,9 @@ #elif defined CONFIG_ARCH_MXC91231 #define PHYS_OFFSET UL(0x90000000) #endif +#ifdef CONFIG_ARCH_MX5 +#define PHYS_OFFSET UL(0x90000000) +#endif #if defined(CONFIG_MX1_VIDEO) /* diff --git a/arch/arm/plat-mxc/include/mach/mxc.h b/arch/arm/plat-mxc/include/mach/mxc.h index 5199053..555e5f8 100644 --- a/arch/arm/plat-mxc/include/mach/mxc.h +++ b/arch/arm/plat-mxc/include/mach/mxc.h @@ -30,6 +30,7 @@ #define MXC_CPU_MX27 27 #define MXC_CPU_MX31 31 #define MXC_CPU_MX35 35 +#define MXC_CPU_MX51 51 #define MXC_CPU_MXC91231 91231 #ifndef __ASSEMBLY__ @@ -108,6 +109,18 @@ extern unsigned int __mxc_cpu_type; # define cpu_is_mx35() (0) #endif +#ifdef CONFIG_ARCH_MX5 +# ifdef mxc_cpu_type +# undef mxc_cpu_type +# define mxc_cpu_type __mxc_cpu_type +# else +# define mxc_cpu_type MXC_CPU_MX51 +# endif +# define cpu_is_mx51() (mxc_cpu_type == MXC_CPU_MX51) +#else +# define cpu_is_mx51() (0) +#endif + #ifdef CONFIG_ARCH_MXC91231 # ifdef mxc_cpu_type # undef mxc_cpu_type diff --git a/arch/arm/plat-mxc/include/mach/timex.h b/arch/arm/plat-mxc/include/mach/timex.h index 527a6c2..024416e 100644 --- a/arch/arm/plat-mxc/include/mach/timex.h +++ b/arch/arm/plat-mxc/include/mach/timex.h @@ -28,6 +28,8 @@ #define CLOCK_TICK_RATE 16625000 #elif defined CONFIG_ARCH_MX25 #define CLOCK_TICK_RATE 16000000 +#elif defined CONFIG_ARCH_MX5 +#define CLOCK_TICK_RATE 8000000 #elif defined CONFIG_ARCH_MXC91231 #define CLOCK_TICK_RATE 13000000 #endif diff --git a/arch/arm/plat-mxc/time.c b/arch/arm/plat-mxc/time.c index 7d6499e..2ba8b29 100644 --- a/arch/arm/plat-mxc/time.c +++ b/arch/arm/plat-mxc/time.c @@ -32,7 +32,7 @@ /* defines common for all i.MX */ #define MXC_TCTL 0x00 -#define MXC_TCTL_TEN (1 << 0) +#define MXC_TCTL_TEN (1 << 0) /* Enable module */ #define MXC_TPRER 0x04 /* MX1, MX21, MX27 */ @@ -48,7 +48,7 @@ #define MX2_TSTAT_COMP (1 << 0) /* MX31, MX35, MX25, MXC91231 */ -#define MX3_TCTL_WAITEN (1 << 3) +#define MX3_TCTL_WAITEN (1 << 3) /* Wait enable mode */ #define MX3_TCTL_CLK_IPG (1 << 6) #define MX3_TCTL_FRR (1 << 9) #define MX3_IR 0x0c @@ -58,7 +58,7 @@ #define MX3_TCMP 0x10 #define timer_is_v1() (cpu_is_mx1() || cpu_is_mx27()) -#define timer_is_v2() (cpu_is_mx3() || cpu_is_mx25()) +#define timer_is_v2() (cpu_is_mx3() || cpu_is_mx25() || cpu_is_mx51()) static struct clock_event_device clockevent_mxc; static enum clock_event_mode clockevent_mode = CLOCK_EVT_MODE_UNUSED; -- 1.6.3.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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