diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 8b0b743b4fb1..5cade3cec718 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -260,6 +260,7 @@ config ARCH_INTEGRATOR select ICST select GENERIC_CLOCKEVENTS select PLAT_VERSATILE + select PLAT_VERSATILE_CLOCK select PLAT_VERSATILE_FPGA_IRQ select NEED_MACH_IO_H select NEED_MACH_MEMORY_H @@ -277,6 +278,7 @@ config ARCH_REALVIEW select GENERIC_CLOCKEVENTS select ARCH_WANT_OPTIONAL_GPIOLIB select PLAT_VERSATILE + select PLAT_VERSATILE_CLOCK select PLAT_VERSATILE_CLCD select ARM_TIMER_SP804 select GPIO_PL061 if GPIOLIB @@ -295,6 +297,7 @@ config ARCH_VERSATILE select ARCH_WANT_OPTIONAL_GPIOLIB select NEED_MACH_IO_H if PCI select PLAT_VERSATILE + select PLAT_VERSATILE_CLOCK select PLAT_VERSATILE_CLCD select PLAT_VERSATILE_FPGA_IRQ select ARM_TIMER_SP804 @@ -307,7 +310,7 @@ config ARCH_VEXPRESS select ARM_AMBA select ARM_TIMER_SP804 select CLKDEV_LOOKUP - select HAVE_MACH_CLKDEV + select COMMON_CLK select GENERIC_CLOCKEVENTS select HAVE_CLK select HAVE_PATA_PLATFORM @@ -315,6 +318,7 @@ config ARCH_VEXPRESS select NO_IOPORT select PLAT_VERSATILE select PLAT_VERSATILE_CLCD + select REGULATOR_FIXED_VOLTAGE if REGULATOR help This enables support for the ARM Ltd Versatile Express boards. diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug index 01a134141216..a03b5a7059e2 100644 --- a/arch/arm/Kconfig.debug +++ b/arch/arm/Kconfig.debug @@ -310,6 +310,32 @@ choice The uncompressor code port configuration is now handled by CONFIG_S3C_LOWLEVEL_UART_PORT. + config DEBUG_VEXPRESS_UART0_DETECT + bool "Autodetect UART0 on Versatile Express Cortex-A core tiles" + depends on ARCH_VEXPRESS && CPU_CP15_MMU + help + This option enables a simple heuristic which tries to determine + the motherboard's memory map variant (original or RS1) and then + choose the relevant UART0 base address. + + Note that this will only work with standard A-class core tiles, + and may fail with non-standard SMM or custom software models. + + config DEBUG_VEXPRESS_UART0_CA9 + bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)" + depends on ARCH_VEXPRESS + help + This option selects UART0 at 0x10009000. Except for custom models, + this applies only to the V2P-CA9 tile. + + config DEBUG_VEXPRESS_UART0_RS1 + bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)" + depends on ARCH_VEXPRESS + help + This option selects UART0 at 0x1c090000. This applies to most + of the tiles using the RS1 memory map, including all new A-class + core tiles, FPGA-based SMMs and software models. + config DEBUG_LL_UART_NONE bool "No low-level debugging UART" help diff --git a/arch/arm/boot/dts/vexpress-v2m-rs1.dtsi b/arch/arm/boot/dts/vexpress-v2m-rs1.dtsi index 16076e2d0934..d8a827bd2bf3 100644 --- a/arch/arm/boot/dts/vexpress-v2m-rs1.dtsi +++ b/arch/arm/boot/dts/vexpress-v2m-rs1.dtsi @@ -55,6 +55,8 @@ reg-io-width = <4>; smsc,irq-active-high; smsc,irq-push-pull; + vdd33a-supply = <&v2m_fixed_3v3>; + vddvario-supply = <&v2m_fixed_3v3>; }; usb@2,03000000 { @@ -157,6 +159,7 @@ v2m_timer23: timer@120000 { compatible = "arm,sp804", "arm,primecell"; reg = <0x120000 0x1000>; + interrupts = <3>; }; /* DVI I2C bus */ @@ -197,5 +200,13 @@ interrupts = <14>; }; }; + + v2m_fixed_3v3: fixedregulator@0 { + compatible = "regulator-fixed"; + regulator-name = "3V3"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-always-on; + }; }; }; diff --git a/arch/arm/boot/dts/vexpress-v2m.dtsi b/arch/arm/boot/dts/vexpress-v2m.dtsi index a6c9c7c82d53..dba53fd026bb 100644 --- a/arch/arm/boot/dts/vexpress-v2m.dtsi +++ b/arch/arm/boot/dts/vexpress-v2m.dtsi @@ -54,6 +54,8 @@ reg-io-width = <4>; smsc,irq-active-high; smsc,irq-push-pull; + vdd33a-supply = <&v2m_fixed_3v3>; + vddvario-supply = <&v2m_fixed_3v3>; }; usb@3,03000000 { @@ -156,6 +158,7 @@ v2m_timer23: timer@12000 { compatible = "arm,sp804", "arm,primecell"; reg = <0x12000 0x1000>; + interrupts = <3>; }; /* DVI I2C bus */ @@ -196,5 +199,13 @@ interrupts = <14>; }; }; + + v2m_fixed_3v3: fixedregulator@0 { + compatible = "regulator-fixed"; + regulator-name = "3V3"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-always-on; + }; }; }; diff --git a/arch/arm/boot/dts/vexpress-v2p-ca15-tc1.dts b/arch/arm/boot/dts/vexpress-v2p-ca15-tc1.dts index 7e1091d91af8..d12b34ca0568 100644 --- a/arch/arm/boot/dts/vexpress-v2p-ca15-tc1.dts +++ b/arch/arm/boot/dts/vexpress-v2p-ca15-tc1.dts @@ -14,8 +14,8 @@ arm,hbi = <0x237>; compatible = "arm,vexpress,v2p-ca15,tc1", "arm,vexpress,v2p-ca15", "arm,vexpress"; interrupt-parent = <&gic>; - #address-cells = <1>; - #size-cells = <1>; + #address-cells = <2>; + #size-cells = <2>; chosen { }; @@ -47,23 +47,23 @@ memory@80000000 { device_type = "memory"; - reg = <0x80000000 0x40000000>; + reg = <0 0x80000000 0 0x40000000>; }; hdlcd@2b000000 { compatible = "arm,hdlcd"; - reg = <0x2b000000 0x1000>; + reg = <0 0x2b000000 0 0x1000>; interrupts = <0 85 4>; }; memory-controller@2b0a0000 { compatible = "arm,pl341", "arm,primecell"; - reg = <0x2b0a0000 0x1000>; + reg = <0 0x2b0a0000 0 0x1000>; }; wdt@2b060000 { compatible = "arm,sp805", "arm,primecell"; - reg = <0x2b060000 0x1000>; + reg = <0 0x2b060000 0 0x1000>; interrupts = <98>; }; @@ -72,23 +72,23 @@ #interrupt-cells = <3>; #address-cells = <0>; interrupt-controller; - reg = <0x2c001000 0x1000>, - <0x2c002000 0x1000>, - <0x2c004000 0x2000>, - <0x2c006000 0x2000>; + reg = <0 0x2c001000 0 0x1000>, + <0 0x2c002000 0 0x1000>, + <0 0x2c004000 0 0x2000>, + <0 0x2c006000 0 0x2000>; interrupts = <1 9 0xf04>; }; memory-controller@7ffd0000 { compatible = "arm,pl354", "arm,primecell"; - reg = <0x7ffd0000 0x1000>; + reg = <0 0x7ffd0000 0 0x1000>; interrupts = <0 86 4>, <0 87 4>; }; dma@7ffb0000 { compatible = "arm,pl330", "arm,primecell"; - reg = <0x7ffb0000 0x1000>; + reg = <0 0x7ffb0000 0 0x1000>; interrupts = <0 92 4>, <0 88 4>, <0 89 4>, @@ -111,12 +111,12 @@ }; motherboard { - ranges = <0 0 0x08000000 0x04000000>, - <1 0 0x14000000 0x04000000>, - <2 0 0x18000000 0x04000000>, - <3 0 0x1c000000 0x04000000>, - <4 0 0x0c000000 0x04000000>, - <5 0 0x10000000 0x04000000>; + ranges = <0 0 0 0x08000000 0x04000000>, + <1 0 0 0x14000000 0x04000000>, + <2 0 0 0x18000000 0x04000000>, + <3 0 0 0x1c000000 0x04000000>, + <4 0 0 0x0c000000 0x04000000>, + <5 0 0 0x10000000 0x04000000>; interrupt-map-mask = <0 0 63>; interrupt-map = <0 0 0 &gic 0 0 4>, diff --git a/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts b/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts new file mode 100644 index 000000000000..4890a81c5467 --- /dev/null +++ b/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts @@ -0,0 +1,188 @@ +/* + * ARM Ltd. Versatile Express + * + * CoreTile Express A15x2 A7x3 + * Cortex-A15_A7 MPCore (V2P-CA15_A7) + * + * HBI-0249A + */ + +/dts-v1/; + +/ { + model = "V2P-CA15_CA7"; + arm,hbi = <0x249>; + compatible = "arm,vexpress,v2p-ca15_a7", "arm,vexpress"; + interrupt-parent = <&gic>; + #address-cells = <2>; + #size-cells = <2>; + + chosen { }; + + aliases { + serial0 = &v2m_serial0; + serial1 = &v2m_serial1; + serial2 = &v2m_serial2; + serial3 = &v2m_serial3; + i2c0 = &v2m_i2c_dvi; + i2c1 = &v2m_i2c_pcie; + }; + + cpus { + #address-cells = <1>; + #size-cells = <0>; + + cpu0: cpu@0 { + device_type = "cpu"; + compatible = "arm,cortex-a15"; + reg = <0>; + }; + + cpu1: cpu@1 { + device_type = "cpu"; + compatible = "arm,cortex-a15"; + reg = <1>; + }; + +/* A7s disabled till big.LITTLE patches are available... + cpu2: cpu@2 { + device_type = "cpu"; + compatible = "arm,cortex-a7"; + reg = <0x100>; + }; + + cpu3: cpu@3 { + device_type = "cpu"; + compatible = "arm,cortex-a7"; + reg = <0x101>; + }; + + cpu4: cpu@4 { + device_type = "cpu"; + compatible = "arm,cortex-a7"; + reg = <0x102>; + }; +*/ + }; + + memory@80000000 { + device_type = "memory"; + reg = <0 0x80000000 0 0x40000000>; + }; + + wdt@2a490000 { + compatible = "arm,sp805", "arm,primecell"; + reg = <0 0x2a490000 0 0x1000>; + interrupts = <98>; + }; + + hdlcd@2b000000 { + compatible = "arm,hdlcd"; + reg = <0 0x2b000000 0 0x1000>; + interrupts = <0 85 4>; + }; + + memory-controller@2b0a0000 { + compatible = "arm,pl341", "arm,primecell"; + reg = <0 0x2b0a0000 0 0x1000>; + }; + + gic: interrupt-controller@2c001000 { + compatible = "arm,cortex-a15-gic", "arm,cortex-a9-gic"; + #interrupt-cells = <3>; + #address-cells = <0>; + interrupt-controller; + reg = <0 0x2c001000 0 0x1000>, + <0 0x2c002000 0 0x1000>, + <0 0x2c004000 0 0x2000>, + <0 0x2c006000 0 0x2000>; + interrupts = <1 9 0xf04>; + }; + + memory-controller@7ffd0000 { + compatible = "arm,pl354", "arm,primecell"; + reg = <0 0x7ffd0000 0 0x1000>; + interrupts = <0 86 4>, + <0 87 4>; + }; + + dma@7ff00000 { + compatible = "arm,pl330", "arm,primecell"; + reg = <0 0x7ff00000 0 0x1000>; + interrupts = <0 92 4>, + <0 88 4>, + <0 89 4>, + <0 90 4>, + <0 91 4>; + }; + + timer { + compatible = "arm,armv7-timer"; + interrupts = <1 13 0xf08>, + <1 14 0xf08>, + <1 11 0xf08>, + <1 10 0xf08>; + }; + + pmu { + compatible = "arm,cortex-a15-pmu", "arm,cortex-a9-pmu"; + interrupts = <0 68 4>, + <0 69 4>; + }; + + motherboard { + ranges = <0 0 0 0x08000000 0x04000000>, + <1 0 0 0x14000000 0x04000000>, + <2 0 0 0x18000000 0x04000000>, + <3 0 0 0x1c000000 0x04000000>, + <4 0 0 0x0c000000 0x04000000>, + <5 0 0 0x10000000 0x04000000>; + + interrupt-map-mask = <0 0 63>; + interrupt-map = <0 0 0 &gic 0 0 4>, + <0 0 1 &gic 0 1 4>, + <0 0 2 &gic 0 2 4>, + <0 0 3 &gic 0 3 4>, + <0 0 4 &gic 0 4 4>, + <0 0 5 &gic 0 5 4>, + <0 0 6 &gic 0 6 4>, + <0 0 7 &gic 0 7 4>, + <0 0 8 &gic 0 8 4>, + <0 0 9 &gic 0 9 4>, + <0 0 10 &gic 0 10 4>, + <0 0 11 &gic 0 11 4>, + <0 0 12 &gic 0 12 4>, + <0 0 13 &gic 0 13 4>, + <0 0 14 &gic 0 14 4>, + <0 0 15 &gic 0 15 4>, + <0 0 16 &gic 0 16 4>, + <0 0 17 &gic 0 17 4>, + <0 0 18 &gic 0 18 4>, + <0 0 19 &gic 0 19 4>, + <0 0 20 &gic 0 20 4>, + <0 0 21 &gic 0 21 4>, + <0 0 22 &gic 0 22 4>, + <0 0 23 &gic 0 23 4>, + <0 0 24 &gic 0 24 4>, + <0 0 25 &gic 0 25 4>, + <0 0 26 &gic 0 26 4>, + <0 0 27 &gic 0 27 4>, + <0 0 28 &gic 0 28 4>, + <0 0 29 &gic 0 29 4>, + <0 0 30 &gic 0 30 4>, + <0 0 31 &gic 0 31 4>, + <0 0 32 &gic 0 32 4>, + <0 0 33 &gic 0 33 4>, + <0 0 34 &gic 0 34 4>, + <0 0 35 &gic 0 35 4>, + <0 0 36 &gic 0 36 4>, + <0 0 37 &gic 0 37 4>, + <0 0 38 &gic 0 38 4>, + <0 0 39 &gic 0 39 4>, + <0 0 40 &gic 0 40 4>, + <0 0 41 &gic 0 41 4>, + <0 0 42 &gic 0 42 4>; + }; +}; + +/include/ "vexpress-v2m-rs1.dtsi" diff --git a/arch/arm/mach-vexpress/Kconfig b/arch/arm/mach-vexpress/Kconfig index cf8730d35e70..fc3730f01650 100644 --- a/arch/arm/mach-vexpress/Kconfig +++ b/arch/arm/mach-vexpress/Kconfig @@ -2,7 +2,8 @@ menu "Versatile Express platform type" depends on ARCH_VEXPRESS config ARCH_VEXPRESS_CORTEX_A5_A9_ERRATA - bool + bool "Enable A5 and A9 only errata work-arounds" + default y select ARM_ERRATA_720789 select ARM_ERRATA_751472 select PL310_ERRATA_753970 if CACHE_PL310 @@ -14,7 +15,6 @@ config ARCH_VEXPRESS_CORTEX_A5_A9_ERRATA config ARCH_VEXPRESS_CA9X4 bool "Versatile Express Cortex-A9x4 tile" - select ARCH_VEXPRESS_CORTEX_A5_A9_ERRATA select ARM_GIC select CPU_V7 select HAVE_SMP @@ -22,7 +22,6 @@ config ARCH_VEXPRESS_CA9X4 config ARCH_VEXPRESS_DT bool "Device Tree support for Versatile Express platforms" - select ARCH_VEXPRESS_CORTEX_A5_A9_ERRATA select ARM_GIC select ARM_PATCH_PHYS_VIRT select AUTO_ZRELADDR diff --git a/arch/arm/mach-vexpress/Makefile.boot b/arch/arm/mach-vexpress/Makefile.boot index 909f85ebf5f4..318d308dfb93 100644 --- a/arch/arm/mach-vexpress/Makefile.boot +++ b/arch/arm/mach-vexpress/Makefile.boot @@ -6,4 +6,5 @@ initrd_phys-y := 0x60800000 dtb-$(CONFIG_ARCH_VEXPRESS_DT) += vexpress-v2p-ca5s.dtb \ vexpress-v2p-ca9.dtb \ - vexpress-v2p-ca15-tc1.dtb + vexpress-v2p-ca15-tc1.dtb \ + vexpress-v2p-ca15_a7.dtb diff --git a/arch/arm/mach-vexpress/ct-ca9x4.c b/arch/arm/mach-vexpress/ct-ca9x4.c index c65cc3b462a5..61c492403b05 100644 --- a/arch/arm/mach-vexpress/ct-ca9x4.c +++ b/arch/arm/mach-vexpress/ct-ca9x4.c @@ -66,8 +66,15 @@ static void __init ct_ca9x4_init_irq(void) static void ct_ca9x4_clcd_enable(struct clcd_fb *fb) { - v2m_cfg_write(SYS_CFG_MUXFPGA | SYS_CFG_SITE_DB1, 0); - v2m_cfg_write(SYS_CFG_DVIMODE | SYS_CFG_SITE_DB1, 2); + u32 site = v2m_get_master_site(); + + /* + * Old firmware was using the "site" component of the command + * to control the DVI muxer (while it should be always 0 ie. MB). + * Newer firmware uses the data register. Keep both for compatibility. + */ + v2m_cfg_write(SYS_CFG_MUXFPGA | SYS_CFG_SITE(site), site); + v2m_cfg_write(SYS_CFG_DVIMODE | SYS_CFG_SITE(SYS_CFG_SITE_MB), 2); } static int ct_ca9x4_clcd_setup(struct clcd_fb *fb) @@ -105,43 +112,11 @@ static struct amba_device *ct_ca9x4_amba_devs[] __initdata = { }; -static long ct_round(struct clk *clk, unsigned long rate) -{ - return rate; -} - -static int ct_set(struct clk *clk, unsigned long rate) -{ - return v2m_cfg_write(SYS_CFG_OSC | SYS_CFG_SITE_DB1 | 1, rate); -} - -static const struct clk_ops osc1_clk_ops = { - .round = ct_round, - .set = ct_set, -}; - -static struct clk osc1_clk = { - .ops = &osc1_clk_ops, - .rate = 24000000, -}; - -static struct clk ct_sp804_clk = { - .rate = 1000000, -}; - -static struct clk_lookup lookups[] = { - { /* CLCD */ - .dev_id = "ct:clcd", - .clk = &osc1_clk, - }, { /* SP804 timers */ - .dev_id = "sp804", - .con_id = "ct-timer0", - .clk = &ct_sp804_clk, - }, { /* SP804 timers */ - .dev_id = "sp804", - .con_id = "ct-timer1", - .clk = &ct_sp804_clk, - }, +static struct v2m_osc ct_osc1 = { + .osc = 1, + .rate_min = 10000000, + .rate_max = 80000000, + .rate_default = 23750000, }; static struct resource pmu_resources[] = { @@ -174,14 +149,10 @@ static struct platform_device pmu_device = { .resource = pmu_resources, }; -static void __init ct_ca9x4_init_early(void) -{ - clkdev_add_table(lookups, ARRAY_SIZE(lookups)); -} - static void __init ct_ca9x4_init(void) { int i; + struct clk *clk; #ifdef CONFIG_CACHE_L2X0 void __iomem *l2x0_base = ioremap(CT_CA9X4_L2CC, SZ_4K); @@ -193,6 +164,10 @@ static void __init ct_ca9x4_init(void) l2x0_init(l2x0_base, 0x00400000, 0xfe0fffff); #endif + ct_osc1.site = v2m_get_master_site(); + clk = v2m_osc_register("ct:osc1", &ct_osc1); + clk_register_clkdev(clk, NULL, "ct:clcd"); + for (i = 0; i < ARRAY_SIZE(ct_ca9x4_amba_devs); i++) amba_device_register(ct_ca9x4_amba_devs[i], &iomem_resource); @@ -234,7 +209,6 @@ struct ct_desc ct_ca9x4_desc __initdata = { .id = V2M_CT_ID_CA9, .name = "CA9x4", .map_io = ct_ca9x4_map_io, - .init_early = ct_ca9x4_init_early, .init_irq = ct_ca9x4_init_irq, .init_tile = ct_ca9x4_init, #ifdef CONFIG_SMP diff --git a/arch/arm/mach-vexpress/include/mach/clkdev.h b/arch/arm/mach-vexpress/include/mach/clkdev.h deleted file mode 100644 index 3f8307d73cad..000000000000 --- a/arch/arm/mach-vexpress/include/mach/clkdev.h +++ /dev/null @@ -1,15 +0,0 @@ -#ifndef __ASM_MACH_CLKDEV_H -#define __ASM_MACH_CLKDEV_H - -#include - -struct clk { - const struct clk_ops *ops; - unsigned long rate; - const struct icst_params *params; -}; - -#define __clk_get(clk) ({ 1; }) -#define __clk_put(clk) do { } while (0) - -#endif diff --git a/arch/arm/mach-vexpress/include/mach/debug-macro.S b/arch/arm/mach-vexpress/include/mach/debug-macro.S index fa8224794e0b..9f509f55d078 100644 --- a/arch/arm/mach-vexpress/include/mach/debug-macro.S +++ b/arch/arm/mach-vexpress/include/mach/debug-macro.S @@ -18,6 +18,8 @@ #define DEBUG_LL_VIRT_BASE 0xf8000000 +#if defined(CONFIG_DEBUG_VEXPRESS_UART0_DETECT) + .macro addruart,rp,rv,tmp @ Make an educated guess regarding the memory map: @@ -41,3 +43,42 @@ .endm #include + +#elif defined(CONFIG_DEBUG_VEXPRESS_UART0_CA9) + + .macro addruart,rp,rv,tmp + mov \rp, #DEBUG_LL_UART_OFFSET + orr \rv, \rp, #DEBUG_LL_VIRT_BASE + orr \rp, \rp, #DEBUG_LL_PHYS_BASE + .endm + +#include + +#elif defined(CONFIG_DEBUG_VEXPRESS_UART0_RS1) + + .macro addruart,rp,rv,tmp + mov \rp, #DEBUG_LL_UART_OFFSET_RS1 + orr \rv, \rp, #DEBUG_LL_VIRT_BASE + orr \rp, \rp, #DEBUG_LL_PHYS_BASE_RS1 + .endm + +#include + +#else /* CONFIG_DEBUG_LL_UART_NONE */ + + .macro addruart, rp, rv, tmp + /* Safe dummy values */ + mov \rp, #0 + mov \rv, #DEBUG_LL_VIRT_BASE + .endm + + .macro senduart,rd,rx + .endm + + .macro waituart,rd,rx + .endm + + .macro busyuart,rd,rx + .endm + +#endif diff --git a/arch/arm/mach-vexpress/include/mach/motherboard.h b/arch/arm/mach-vexpress/include/mach/motherboard.h index 31a92890893d..1e388c7bf4d7 100644 --- a/arch/arm/mach-vexpress/include/mach/motherboard.h +++ b/arch/arm/mach-vexpress/include/mach/motherboard.h @@ -1,6 +1,8 @@ #ifndef __MACH_MOTHERBOARD_H #define __MACH_MOTHERBOARD_H +#include + /* * Physical addresses, offset from V2M_PA_CS0-3 */ @@ -104,9 +106,10 @@ #define SYS_CFG_REBOOT (9 << 20) #define SYS_CFG_DVIMODE (11 << 20) #define SYS_CFG_POWER (12 << 20) -#define SYS_CFG_SITE_MB (0 << 16) -#define SYS_CFG_SITE_DB1 (1 << 16) -#define SYS_CFG_SITE_DB2 (2 << 16) +#define SYS_CFG_SITE(n) ((n) << 16) +#define SYS_CFG_SITE_MB 0 +#define SYS_CFG_SITE_DB1 1 +#define SYS_CFG_SITE_DB2 2 #define SYS_CFG_STACK(n) ((n) << 12) #define SYS_CFG_ERR (1 << 1) @@ -122,6 +125,8 @@ void v2m_flags_set(u32 data); #define SYS_MISC_MASTERSITE (1 << 14) #define SYS_PROCIDx_HBI_MASK 0xfff +int v2m_get_master_site(void); + /* * Core tile IDs */ @@ -144,4 +149,21 @@ struct ct_desc { extern struct ct_desc *ct_desc; +/* + * OSC clock provider + */ +struct v2m_osc { + struct clk_hw hw; + u8 site; /* 0 = motherboard, 1 = site 1, 2 = site 2 */ + u8 stack; /* board stack position */ + u16 osc; + unsigned long rate_min; + unsigned long rate_max; + unsigned long rate_default; +}; + +#define to_v2m_osc(osc) container_of(osc, struct v2m_osc, hw) + +struct clk *v2m_osc_register(const char *name, struct v2m_osc *osc); + #endif diff --git a/arch/arm/mach-vexpress/include/mach/uncompress.h b/arch/arm/mach-vexpress/include/mach/uncompress.h index 7dab5596b868..1e472eb0bbdc 100644 --- a/arch/arm/mach-vexpress/include/mach/uncompress.h +++ b/arch/arm/mach-vexpress/include/mach/uncompress.h @@ -27,6 +27,7 @@ static unsigned long get_uart_base(void) { +#if defined(CONFIG_DEBUG_VEXPRESS_UART0_DETECT) unsigned long mpcore_periph; /* @@ -42,6 +43,13 @@ static unsigned long get_uart_base(void) return UART_BASE; else return UART_BASE_RS1; +#elif defined(CONFIG_DEBUG_VEXPRESS_UART0_CA9) + return UART_BASE; +#elif defined(CONFIG_DEBUG_VEXPRESS_UART0_RS1) + return UART_BASE_RS1; +#else + return 0; +#endif } /* @@ -51,6 +59,9 @@ static inline void putc(int c) { unsigned long base = get_uart_base(); + if (!base) + return; + while (AMBA_UART_FR(base) & (1 << 5)) barrier(); @@ -61,6 +72,9 @@ static inline void flush(void) { unsigned long base = get_uart_base(); + if (!base) + return; + while (AMBA_UART_FR(base) & (1 << 3)) barrier(); } diff --git a/arch/arm/mach-vexpress/v2m.c b/arch/arm/mach-vexpress/v2m.c index fde26adaef32..37608f22ee31 100644 --- a/arch/arm/mach-vexpress/v2m.c +++ b/arch/arm/mach-vexpress/v2m.c @@ -16,7 +16,10 @@ #include #include #include +#include #include +#include +#include #include #include @@ -81,16 +84,6 @@ static void __init v2m_sp804_init(void __iomem *base, unsigned int irq) sp804_clockevents_init(base + TIMER_1_BASE, irq, "v2m-timer0"); } -static void __init v2m_timer_init(void) -{ - v2m_sysctl_init(ioremap(V2M_SYSCTL, SZ_4K)); - v2m_sp804_init(ioremap(V2M_TIMER01, SZ_4K), IRQ_V2M_TIMER0); -} - -static struct sys_timer v2m_timer = { - .init = v2m_timer_init, -}; - static DEFINE_SPINLOCK(v2m_cfg_lock); @@ -147,6 +140,13 @@ void __init v2m_flags_set(u32 data) writel(data, v2m_sysreg_base + V2M_SYS_FLAGSSET); } +int v2m_get_master_site(void) +{ + u32 misc = readl(v2m_sysreg_base + V2M_SYS_MISC); + + return misc & SYS_MISC_MASTERSITE ? SYS_CFG_SITE_DB2 : SYS_CFG_SITE_DB1; +} + static struct resource v2m_pcie_i2c_resource = { .start = V2M_SERIAL_BUS_PCI, @@ -201,6 +201,11 @@ static struct platform_device v2m_eth_device = { .dev.platform_data = &v2m_eth_config, }; +static struct regulator_consumer_supply v2m_eth_supplies[] = { + REGULATOR_SUPPLY("vddvario", "smsc911x"), + REGULATOR_SUPPLY("vdd33a", "smsc911x"), +}; + static struct resource v2m_usb_resources[] = { { .start = V2M_ISP1761, @@ -319,98 +324,145 @@ static struct amba_device *v2m_amba_devs[] __initdata = { }; -static long v2m_osc_round(struct clk *clk, unsigned long rate) +static unsigned long v2m_osc_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) { + struct v2m_osc *osc = to_v2m_osc(hw); + + return !parent_rate ? osc->rate_default : parent_rate; +} + +static long v2m_osc_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *parent_rate) +{ + struct v2m_osc *osc = to_v2m_osc(hw); + + if (WARN_ON(rate < osc->rate_min)) + rate = osc->rate_min; + + if (WARN_ON(rate > osc->rate_max)) + rate = osc->rate_max; + return rate; } -static int v2m_osc1_set(struct clk *clk, unsigned long rate) +static int v2m_osc_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) { - return v2m_cfg_write(SYS_CFG_OSC | SYS_CFG_SITE_MB | 1, rate); + struct v2m_osc *osc = to_v2m_osc(hw); + + v2m_cfg_write(SYS_CFG_OSC | SYS_CFG_SITE(osc->site) | + SYS_CFG_STACK(osc->stack) | osc->osc, rate); + + return 0; } -static const struct clk_ops osc1_clk_ops = { - .round = v2m_osc_round, - .set = v2m_osc1_set, +static struct clk_ops v2m_osc_ops = { + .recalc_rate = v2m_osc_recalc_rate, + .round_rate = v2m_osc_round_rate, + .set_rate = v2m_osc_set_rate, }; -static struct clk osc1_clk = { - .ops = &osc1_clk_ops, - .rate = 24000000, +struct clk * __init v2m_osc_register(const char *name, struct v2m_osc *osc) +{ + struct clk_init_data init; + + WARN_ON(osc->site > 2); + WARN_ON(osc->stack > 15); + WARN_ON(osc->osc > 4095); + + init.name = name; + init.ops = &v2m_osc_ops; + init.flags = CLK_IS_ROOT; + init.num_parents = 0; + + osc->hw.init = &init; + + return clk_register(NULL, &osc->hw); +} + +static struct v2m_osc v2m_mb_osc1 = { + .site = SYS_CFG_SITE_MB, + .osc = 1, + .rate_min = 23750000, + .rate_max = 63500000, + .rate_default = 23750000, }; -static struct clk osc2_clk = { - .rate = 24000000, +static const char *v2m_ref_clk_periphs[] __initconst = { + "mb:wdt", "1000f000.wdt", "1c0f0000.wdt", /* SP805 WDT */ }; -static struct clk v2m_sp804_clk = { - .rate = 1000000, +static const char *v2m_osc1_periphs[] __initconst = { + "mb:clcd", "1001f000.clcd", "1c1f0000.clcd", /* PL111 CLCD */ }; -static struct clk v2m_ref_clk = { - .rate = 32768, +static const char *v2m_osc2_periphs[] __initconst = { + "mb:mmci", "10005000.mmci", "1c050000.mmci", /* PL180 MMCI */ + "mb:kmi0", "10006000.kmi", "1c060000.kmi", /* PL050 KMI0 */ + "mb:kmi1", "10007000.kmi", "1c070000.kmi", /* PL050 KMI1 */ + "mb:uart0", "10009000.uart", "1c090000.uart", /* PL011 UART0 */ + "mb:uart1", "1000a000.uart", "1c0a0000.uart", /* PL011 UART1 */ + "mb:uart2", "1000b000.uart", "1c0b0000.uart", /* PL011 UART2 */ + "mb:uart3", "1000c000.uart", "1c0c0000.uart", /* PL011 UART3 */ }; -static struct clk dummy_apb_pclk; +static void __init v2m_clk_init(void) +{ + struct clk *clk; + int i; -static struct clk_lookup v2m_lookups[] = { - { /* AMBA bus clock */ - .con_id = "apb_pclk", - .clk = &dummy_apb_pclk, - }, { /* UART0 */ - .dev_id = "mb:uart0", - .clk = &osc2_clk, - }, { /* UART1 */ - .dev_id = "mb:uart1", - .clk = &osc2_clk, - }, { /* UART2 */ - .dev_id = "mb:uart2", - .clk = &osc2_clk, - }, { /* UART3 */ - .dev_id = "mb:uart3", - .clk = &osc2_clk, - }, { /* KMI0 */ - .dev_id = "mb:kmi0", - .clk = &osc2_clk, - }, { /* KMI1 */ - .dev_id = "mb:kmi1", - .clk = &osc2_clk, - }, { /* MMC0 */ - .dev_id = "mb:mmci", - .clk = &osc2_clk, - }, { /* CLCD */ - .dev_id = "mb:clcd", - .clk = &osc1_clk, - }, { /* SP805 WDT */ - .dev_id = "mb:wdt", - .clk = &v2m_ref_clk, - }, { /* SP804 timers */ - .dev_id = "sp804", - .con_id = "v2m-timer0", - .clk = &v2m_sp804_clk, - }, { /* SP804 timers */ - .dev_id = "sp804", - .con_id = "v2m-timer1", - .clk = &v2m_sp804_clk, - }, + clk = clk_register_fixed_rate(NULL, "dummy_apb_pclk", NULL, + CLK_IS_ROOT, 0); + WARN_ON(clk_register_clkdev(clk, "apb_pclk", NULL)); + + clk = clk_register_fixed_rate(NULL, "mb:ref_clk", NULL, + CLK_IS_ROOT, 32768); + for (i = 0; i < ARRAY_SIZE(v2m_ref_clk_periphs); i++) + WARN_ON(clk_register_clkdev(clk, NULL, v2m_ref_clk_periphs[i])); + + clk = clk_register_fixed_rate(NULL, "mb:sp804_clk", NULL, + CLK_IS_ROOT, 1000000); + WARN_ON(clk_register_clkdev(clk, "v2m-timer0", "sp804")); + WARN_ON(clk_register_clkdev(clk, "v2m-timer1", "sp804")); + + clk = v2m_osc_register("mb:osc1", &v2m_mb_osc1); + for (i = 0; i < ARRAY_SIZE(v2m_osc1_periphs); i++) + WARN_ON(clk_register_clkdev(clk, NULL, v2m_osc1_periphs[i])); + + clk = clk_register_fixed_rate(NULL, "mb:osc2", NULL, + CLK_IS_ROOT, 24000000); + for (i = 0; i < ARRAY_SIZE(v2m_osc2_periphs); i++) + WARN_ON(clk_register_clkdev(clk, NULL, v2m_osc2_periphs[i])); +} + +static void __init v2m_timer_init(void) +{ + v2m_sysctl_init(ioremap(V2M_SYSCTL, SZ_4K)); + v2m_clk_init(); + v2m_sp804_init(ioremap(V2M_TIMER01, SZ_4K), IRQ_V2M_TIMER0); +} + +static struct sys_timer v2m_timer = { + .init = v2m_timer_init, }; static void __init v2m_init_early(void) { - ct_desc->init_early(); - clkdev_add_table(v2m_lookups, ARRAY_SIZE(v2m_lookups)); + if (ct_desc->init_early) + ct_desc->init_early(); versatile_sched_clock_init(v2m_sysreg_base + V2M_SYS_24MHZ, 24000000); } static void v2m_power_off(void) { - if (v2m_cfg_write(SYS_CFG_SHUTDOWN | SYS_CFG_SITE_MB, 0)) + if (v2m_cfg_write(SYS_CFG_SHUTDOWN | SYS_CFG_SITE(SYS_CFG_SITE_MB), 0)) printk(KERN_EMERG "Unable to shutdown\n"); } static void v2m_restart(char str, const char *cmd) { - if (v2m_cfg_write(SYS_CFG_REBOOT | SYS_CFG_SITE_MB, 0)) + if (v2m_cfg_write(SYS_CFG_REBOOT | SYS_CFG_SITE(SYS_CFG_SITE_MB), 0)) printk(KERN_EMERG "Unable to reboot\n"); } @@ -458,6 +510,9 @@ static void __init v2m_init(void) { int i; + regulator_register_fixed(0, v2m_eth_supplies, + ARRAY_SIZE(v2m_eth_supplies)); + platform_device_register(&v2m_pcie_i2c_device); platform_device_register(&v2m_ddc_i2c_device); platform_device_register(&v2m_flash_device); @@ -522,77 +577,6 @@ void __init v2m_dt_map_io(void) #endif } -static struct clk_lookup v2m_dt_lookups[] = { - { /* AMBA bus clock */ - .con_id = "apb_pclk", - .clk = &dummy_apb_pclk, - }, { /* SP804 timers */ - .dev_id = "sp804", - .con_id = "v2m-timer0", - .clk = &v2m_sp804_clk, - }, { /* SP804 timers */ - .dev_id = "sp804", - .con_id = "v2m-timer1", - .clk = &v2m_sp804_clk, - }, { /* PL180 MMCI */ - .dev_id = "mb:mmci", /* 10005000.mmci */ - .clk = &osc2_clk, - }, { /* PL050 KMI0 */ - .dev_id = "10006000.kmi", - .clk = &osc2_clk, - }, { /* PL050 KMI1 */ - .dev_id = "10007000.kmi", - .clk = &osc2_clk, - }, { /* PL011 UART0 */ - .dev_id = "10009000.uart", - .clk = &osc2_clk, - }, { /* PL011 UART1 */ - .dev_id = "1000a000.uart", - .clk = &osc2_clk, - }, { /* PL011 UART2 */ - .dev_id = "1000b000.uart", - .clk = &osc2_clk, - }, { /* PL011 UART3 */ - .dev_id = "1000c000.uart", - .clk = &osc2_clk, - }, { /* SP805 WDT */ - .dev_id = "1000f000.wdt", - .clk = &v2m_ref_clk, - }, { /* PL111 CLCD */ - .dev_id = "1001f000.clcd", - .clk = &osc1_clk, - }, - /* RS1 memory map */ - { /* PL180 MMCI */ - .dev_id = "mb:mmci", /* 1c050000.mmci */ - .clk = &osc2_clk, - }, { /* PL050 KMI0 */ - .dev_id = "1c060000.kmi", - .clk = &osc2_clk, - }, { /* PL050 KMI1 */ - .dev_id = "1c070000.kmi", - .clk = &osc2_clk, - }, { /* PL011 UART0 */ - .dev_id = "1c090000.uart", - .clk = &osc2_clk, - }, { /* PL011 UART1 */ - .dev_id = "1c0a0000.uart", - .clk = &osc2_clk, - }, { /* PL011 UART2 */ - .dev_id = "1c0b0000.uart", - .clk = &osc2_clk, - }, { /* PL011 UART3 */ - .dev_id = "1c0c0000.uart", - .clk = &osc2_clk, - }, { /* SP805 WDT */ - .dev_id = "1c0f0000.wdt", - .clk = &v2m_ref_clk, - }, { /* PL111 CLCD */ - .dev_id = "1c1f0000.clcd", - .clk = &osc1_clk, - }, -}; - void __init v2m_dt_init_early(void) { struct device_node *node; @@ -605,8 +589,8 @@ void __init v2m_dt_init_early(void) /* Confirm board type against DT property, if available */ if (of_property_read_u32(allnodes, "arm,hbi", &dt_hbi) == 0) { - u32 misc = readl(v2m_sysreg_base + V2M_SYS_MISC); - u32 id = readl(v2m_sysreg_base + (misc & SYS_MISC_MASTERSITE ? + int site = v2m_get_master_site(); + u32 id = readl(v2m_sysreg_base + (site == SYS_CFG_SITE_DB2 ? V2M_SYS_PROCID1 : V2M_SYS_PROCID0)); u32 hbi = id & SYS_PROCIDx_HBI_MASK; @@ -614,8 +598,6 @@ void __init v2m_dt_init_early(void) pr_warning("vexpress: DT HBI (%x) is not matching " "hardware (%x)!\n", dt_hbi, hbi); } - - clkdev_add_table(v2m_dt_lookups, ARRAY_SIZE(v2m_dt_lookups)); } static struct of_device_id vexpress_irq_match[] __initdata = { @@ -637,6 +619,8 @@ static void __init v2m_dt_timer_init(void) node = of_find_compatible_node(NULL, NULL, "arm,sp810"); v2m_sysctl_init(of_iomap(node, 0)); + v2m_clk_init(); + err = of_property_read_string(of_aliases, "arm,v2m_timer", &path); if (WARN_ON(err)) return; diff --git a/arch/arm/plat-versatile/Kconfig b/arch/arm/plat-versatile/Kconfig index 81ee7cc34457..8d5c10a5084d 100644 --- a/arch/arm/plat-versatile/Kconfig +++ b/arch/arm/plat-versatile/Kconfig @@ -1,5 +1,8 @@ if PLAT_VERSATILE +config PLAT_VERSATILE_CLOCK + bool + config PLAT_VERSATILE_CLCD bool diff --git a/arch/arm/plat-versatile/Makefile b/arch/arm/plat-versatile/Makefile index a5cb1945bdcc..272769a8a7d6 100644 --- a/arch/arm/plat-versatile/Makefile +++ b/arch/arm/plat-versatile/Makefile @@ -1,4 +1,4 @@ -obj-y := clock.o +obj-$(CONFIG_PLAT_VERSATILE_CLOCK) += clock.o obj-$(CONFIG_PLAT_VERSATILE_CLCD) += clcd.o obj-$(CONFIG_PLAT_VERSATILE_FPGA_IRQ) += fpga-irq.o obj-$(CONFIG_PLAT_VERSATILE_LEDS) += leds.o