diff options
Diffstat (limited to 'arch/blackfin/mach-bf561')
| -rw-r--r-- | arch/blackfin/mach-bf561/Makefile | 1 | ||||
| -rw-r--r-- | arch/blackfin/mach-bf561/boards/acvilon.c | 2 | ||||
| -rw-r--r-- | arch/blackfin/mach-bf561/boards/cm_bf561.c | 66 | ||||
| -rw-r--r-- | arch/blackfin/mach-bf561/boards/ezkit.c | 70 | ||||
| -rw-r--r-- | arch/blackfin/mach-bf561/boards/tepla.c | 68 | ||||
| -rw-r--r-- | arch/blackfin/mach-bf561/hotplug.c | 32 | ||||
| -rw-r--r-- | arch/blackfin/mach-bf561/include/mach/irq.h | 3 | ||||
| -rw-r--r-- | arch/blackfin/mach-bf561/include/mach/smp.h | 2 | ||||
| -rw-r--r-- | arch/blackfin/mach-bf561/secondary.S | 50 | ||||
| -rw-r--r-- | arch/blackfin/mach-bf561/smp.c | 44 |
10 files changed, 299 insertions, 39 deletions
diff --git a/arch/blackfin/mach-bf561/Makefile b/arch/blackfin/mach-bf561/Makefile index 59e18afe28c..b3402971831 100644 --- a/arch/blackfin/mach-bf561/Makefile +++ b/arch/blackfin/mach-bf561/Makefile @@ -6,3 +6,4 @@ obj-y := ints-priority.o dma.o obj-$(CONFIG_BF561_COREB) += coreb.o obj-$(CONFIG_SMP) += smp.o secondary.o atomic.o +obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o diff --git a/arch/blackfin/mach-bf561/boards/acvilon.c b/arch/blackfin/mach-bf561/boards/acvilon.c index 07e8dc8770d..5163e2c383c 100644 --- a/arch/blackfin/mach-bf561/boards/acvilon.c +++ b/arch/blackfin/mach-bf561/boards/acvilon.c @@ -176,7 +176,7 @@ static struct resource smsc911x_resources[] = { }; static struct smsc911x_platform_config smsc911x_config = { - .flags = SMSC911X_USE_32BIT, + .flags = SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS, .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW, .irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN, .phy_interface = PHY_INTERFACE_MODE_MII, diff --git a/arch/blackfin/mach-bf561/boards/cm_bf561.c b/arch/blackfin/mach-bf561/boards/cm_bf561.c index dfc8d5b7798..e127aedc1d7 100644 --- a/arch/blackfin/mach-bf561/boards/cm_bf561.c +++ b/arch/blackfin/mach-bf561/boards/cm_bf561.c @@ -72,7 +72,7 @@ static struct bfin5xx_spi_chip spi_adc_chip_info = { }; #endif -#if defined(CONFIG_SND_BLACKFIN_AD1836) || defined(CONFIG_SND_BLACKFIN_AD1836_MODULE) +#if defined(CONFIG_SND_BLACKFIN_AD183X) || defined(CONFIG_SND_BLACKFIN_AD183X_MODULE) static struct bfin5xx_spi_chip ad1836_spi_chip_info = { .enable_dma = 0, .bits_per_word = 16, @@ -111,7 +111,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = { }, #endif -#if defined(CONFIG_SND_BLACKFIN_AD1836) || defined(CONFIG_SND_BLACKFIN_AD1836_MODULE) +#if defined(CONFIG_SND_BLACKFIN_AD183X) || defined(CONFIG_SND_BLACKFIN_AD183X_MODULE) { .modalias = "ad1836", .max_speed_hz = 3125000, /* max spi clock (SCK) speed in HZ */ @@ -305,21 +305,50 @@ static struct platform_device isp1362_hcd_device = { #endif #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE) -static struct resource bfin_uart_resources[] = { +#ifdef CONFIG_SERIAL_BFIN_UART0 +static struct resource bfin_uart0_resources[] = { { - .start = 0xFFC00400, - .end = 0xFFC004FF, + .start = BFIN_UART_THR, + .end = BFIN_UART_GCTL+2, .flags = IORESOURCE_MEM, }, + { + .start = IRQ_UART_RX, + .end = IRQ_UART_RX+1, + .flags = IORESOURCE_IRQ, + }, + { + .start = IRQ_UART_ERROR, + .end = IRQ_UART_ERROR, + .flags = IORESOURCE_IRQ, + }, + { + .start = CH_UART_TX, + .end = CH_UART_TX, + .flags = IORESOURCE_DMA, + }, + { + .start = CH_UART_RX, + .end = CH_UART_RX, + .flags = IORESOURCE_DMA, + }, }; -static struct platform_device bfin_uart_device = { +unsigned short bfin_uart0_peripherals[] = { + P_UART0_TX, P_UART0_RX, 0 +}; + +static struct platform_device bfin_uart0_device = { .name = "bfin-uart", - .id = 1, - .num_resources = ARRAY_SIZE(bfin_uart_resources), - .resource = bfin_uart_resources, + .id = 0, + .num_resources = ARRAY_SIZE(bfin_uart0_resources), + .resource = bfin_uart0_resources, + .dev = { + .platform_data = &bfin_uart0_peripherals, /* Passed to driver */ + }, }; #endif +#endif #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE) #ifdef CONFIG_BFIN_SIR0 @@ -463,7 +492,9 @@ static struct platform_device *cm_bf561_devices[] __initdata = { #endif #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE) - &bfin_uart_device, +#ifdef CONFIG_SERIAL_BFIN_UART0 + &bfin_uart0_device, +#endif #endif #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE) @@ -516,3 +547,18 @@ static int __init cm_bf561_init(void) } arch_initcall(cm_bf561_init); + +static struct platform_device *cm_bf561_early_devices[] __initdata = { +#if defined(CONFIG_SERIAL_BFIN_CONSOLE) || defined(CONFIG_EARLY_PRINTK) +#ifdef CONFIG_SERIAL_BFIN_UART0 + &bfin_uart0_device, +#endif +#endif +}; + +void __init native_machine_early_platform_add_devices(void) +{ + printk(KERN_INFO "register early platform devices\n"); + early_platform_add_devices(cm_bf561_early_devices, + ARRAY_SIZE(cm_bf561_early_devices)); +} diff --git a/arch/blackfin/mach-bf561/boards/ezkit.c b/arch/blackfin/mach-bf561/boards/ezkit.c index ffd3e6a80d1..9b93e2f9579 100644 --- a/arch/blackfin/mach-bf561/boards/ezkit.c +++ b/arch/blackfin/mach-bf561/boards/ezkit.c @@ -160,21 +160,50 @@ static struct platform_device smc91x_device = { #endif #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE) -static struct resource bfin_uart_resources[] = { +#ifdef CONFIG_SERIAL_BFIN_UART0 +static struct resource bfin_uart0_resources[] = { { - .start = 0xFFC00400, - .end = 0xFFC004FF, + .start = BFIN_UART_THR, + .end = BFIN_UART_GCTL+2, .flags = IORESOURCE_MEM, }, + { + .start = IRQ_UART_RX, + .end = IRQ_UART_RX+1, + .flags = IORESOURCE_IRQ, + }, + { + .start = IRQ_UART_ERROR, + .end = IRQ_UART_ERROR, + .flags = IORESOURCE_IRQ, + }, + { + .start = CH_UART_TX, + .end = CH_UART_TX, + .flags = IORESOURCE_DMA, + }, + { + .start = CH_UART_RX, + .end = CH_UART_RX, + .flags = IORESOURCE_DMA, + }, }; -static struct platform_device bfin_uart_device = { +unsigned short bfin_uart0_peripherals[] = { + P_UART0_TX, P_UART0_RX, 0 +}; + +static struct platform_device bfin_uart0_device = { .name = "bfin-uart", - .id = 1, - .num_resources = ARRAY_SIZE(bfin_uart_resources), - .resource = bfin_uart_resources, + .id = 0, + .num_resources = ARRAY_SIZE(bfin_uart0_resources), + .resource = bfin_uart0_resources, + .dev = { + .platform_data = &bfin_uart0_peripherals, /* Passed to driver */ + }, }; #endif +#endif #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE) #ifdef CONFIG_BFIN_SIR0 @@ -245,8 +274,8 @@ static struct platform_device ezkit_flash_device = { }; #endif -#if defined(CONFIG_SND_BLACKFIN_AD1836) \ - || defined(CONFIG_SND_BLACKFIN_AD1836_MODULE) +#if defined(CONFIG_SND_BLACKFIN_AD183X) \ + || defined(CONFIG_SND_BLACKFIN_AD183X_MODULE) static struct bfin5xx_spi_chip ad1836_spi_chip_info = { .enable_dma = 0, .bits_per_word = 16, @@ -299,8 +328,8 @@ static struct platform_device bfin_spi0_device = { #endif static struct spi_board_info bfin_spi_board_info[] __initdata = { -#if defined(CONFIG_SND_BLACKFIN_AD1836) \ - || defined(CONFIG_SND_BLACKFIN_AD1836_MODULE) +#if defined(CONFIG_SND_BLACKFIN_AD183X) \ + || defined(CONFIG_SND_BLACKFIN_AD183X_MODULE) { .modalias = "ad1836", .max_speed_hz = 3125000, /* max spi clock (SCK) speed in HZ */ @@ -412,7 +441,9 @@ static struct platform_device *ezkit_devices[] __initdata = { #endif #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE) - &bfin_uart_device, +#ifdef CONFIG_SERIAL_BFIN_UART0 + &bfin_uart0_device, +#endif #endif #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE) @@ -458,3 +489,18 @@ static int __init ezkit_init(void) } arch_initcall(ezkit_init); + +static struct platform_device *ezkit_early_devices[] __initdata = { +#if defined(CONFIG_SERIAL_BFIN_CONSOLE) || defined(CONFIG_EARLY_PRINTK) +#ifdef CONFIG_SERIAL_BFIN_UART0 + &bfin_uart0_device, +#endif +#endif +}; + +void __init native_machine_early_platform_add_devices(void) +{ + printk(KERN_INFO "register early platform devices\n"); + early_platform_add_devices(ezkit_early_devices, + ARRAY_SIZE(ezkit_early_devices)); +} diff --git a/arch/blackfin/mach-bf561/boards/tepla.c b/arch/blackfin/mach-bf561/boards/tepla.c index 8ba7252455e..d3017e53686 100644 --- a/arch/blackfin/mach-bf561/boards/tepla.c +++ b/arch/blackfin/mach-bf561/boards/tepla.c @@ -42,6 +42,52 @@ static struct platform_device smc91x_device = { .resource = smc91x_resources, }; +#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE) +#ifdef CONFIG_SERIAL_BFIN_UART0 +static struct resource bfin_uart0_resources[] = { + { + .start = BFIN_UART_THR, + .end = BFIN_UART_GCTL+2, + .flags = IORESOURCE_MEM, + }, + { + .start = IRQ_UART_RX, + .end = IRQ_UART_RX+1, + .flags = IORESOURCE_IRQ, + }, + { + .start = IRQ_UART_ERROR, + .end = IRQ_UART_ERROR, + .flags = IORESOURCE_IRQ, + }, + { + .start = CH_UART_TX, + .end = CH_UART_TX, + .flags = IORESOURCE_DMA, + }, + { + .start = CH_UART_RX, + .end = CH_UART_RX, + .flags = IORESOURCE_DMA, + }, +}; + +unsigned short bfin_uart0_peripherals[] = { + P_UART0_TX, P_UART0_RX, 0 +}; + +static struct platform_device bfin_uart0_device = { + .name = "bfin-uart", + .id = 0, + .num_resources = ARRAY_SIZE(bfin_uart0_resources), + .resource = bfin_uart0_resources, + .dev = { + .platform_data = &bfin_uart0_peripherals, /* Passed to driver */ + }, +}; +#endif +#endif + #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE) #ifdef CONFIG_BFIN_SIR0 static struct resource bfin_sir0_resources[] = { @@ -73,6 +119,13 @@ static struct platform_device bfin_sir0_device = { static struct platform_device *tepla_devices[] __initdata = { &smc91x_device, + +#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE) +#ifdef CONFIG_SERIAL_BFIN_UART0 + &bfin_uart0_device, +#endif +#endif + #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE) #ifdef CONFIG_BFIN_SIR0 &bfin_sir0_device, @@ -87,3 +140,18 @@ static int __init tepla_init(void) } arch_initcall(tepla_init); + +static struct platform_device *tepla_early_devices[] __initdata = { +#if defined(CONFIG_SERIAL_BFIN_CONSOLE) || defined(CONFIG_EARLY_PRINTK) +#ifdef CONFIG_SERIAL_BFIN_UART0 + &bfin_uart0_device, +#endif +#endif +}; + +void __init native_machine_early_platform_add_devices(void) +{ + printk(KERN_INFO "register early platform devices\n"); + early_platform_add_devices(tepla_early_devices, + ARRAY_SIZE(tepla_early_devices)); +} diff --git a/arch/blackfin/mach-bf561/hotplug.c b/arch/blackfin/mach-bf561/hotplug.c new file mode 100644 index 00000000000..c95169b612d --- /dev/null +++ b/arch/blackfin/mach-bf561/hotplug.c @@ -0,0 +1,32 @@ +/* + * Copyright 2007-2009 Analog Devices Inc. + * Graff Yang <graf.yang@analog.com> + * + * Licensed under the GPL-2 or later. + */ + +#include <asm/blackfin.h> +#include <asm/smp.h> +#define SIC_SYSIRQ(irq) (irq - (IRQ_CORETMR + 1)) + +int hotplug_coreb; + +void platform_cpu_die(void) +{ + unsigned long iwr[2] = {0, 0}; + unsigned long bank = SIC_SYSIRQ(IRQ_SUPPLE_0) / 32; + unsigned long bit = 1 << (SIC_SYSIRQ(IRQ_SUPPLE_0) % 32); + + hotplug_coreb = 1; + + iwr[bank] = bit; + + /* disable core timer */ + bfin_write_TCNTL(0); + + /* clear ipi interrupt IRQ_SUPPLE_0 */ + bfin_write_SICB_SYSCR(bfin_read_SICB_SYSCR() | (1 << (10 + 1))); + SSYNC(); + + coreb_sleep(iwr[0], iwr[1], 0); +} diff --git a/arch/blackfin/mach-bf561/include/mach/irq.h b/arch/blackfin/mach-bf561/include/mach/irq.h index 7b208db267b..c95566ade51 100644 --- a/arch/blackfin/mach-bf561/include/mach/irq.h +++ b/arch/blackfin/mach-bf561/include/mach/irq.h @@ -265,7 +265,8 @@ #define GPIO_IRQ_BASE IRQ_PF0 -#define NR_IRQS (IRQ_PF47 + 1) +#define NR_MACH_IRQS (IRQ_PF47 + 1) +#define NR_IRQS (NR_MACH_IRQS + NR_SPARE_IRQS) #define IVG7 7 #define IVG8 8 diff --git a/arch/blackfin/mach-bf561/include/mach/smp.h b/arch/blackfin/mach-bf561/include/mach/smp.h index 390c7f4ae7b..2c8c514dd38 100644 --- a/arch/blackfin/mach-bf561/include/mach/smp.h +++ b/arch/blackfin/mach-bf561/include/mach/smp.h @@ -25,4 +25,6 @@ void platform_send_ipi_cpu(unsigned int cpu); void platform_clear_ipi(unsigned int cpu); +void bfin_local_timer_setup(void); + #endif /* !_MACH_BF561_SMP */ diff --git a/arch/blackfin/mach-bf561/secondary.S b/arch/blackfin/mach-bf561/secondary.S index 8e6050369c0..4624eebbf9c 100644 --- a/arch/blackfin/mach-bf561/secondary.S +++ b/arch/blackfin/mach-bf561/secondary.S @@ -11,6 +11,7 @@ #include <linux/init.h> #include <asm/blackfin.h> #include <asm/asm-offsets.h> +#include <asm/trace.h> __INIT @@ -62,6 +63,8 @@ ENTRY(_coreb_trampoline_start) M2 = r0; M3 = r0; + trace_buffer_init(p0,r0); + /* Turn off the icache */ p0.l = LO(IMEM_CONTROL); p0.h = HI(IMEM_CONTROL); @@ -159,6 +162,41 @@ ENTRY(_coreb_trampoline_start) ENDPROC(_coreb_trampoline_start) ENTRY(_coreb_trampoline_end) +.section ".text" +ENTRY(_set_sicb_iwr) + P0.H = hi(SICB_IWR0); + P0.L = lo(SICB_IWR0); + P1.H = hi(SICB_IWR1); + P1.L = lo(SICB_IWR1); + [P0] = R0; + [P1] = R1; + SSYNC; + RTS; +ENDPROC(_set_sicb_iwr) + +ENTRY(_coreb_sleep) + sp.l = lo(INITIAL_STACK); + sp.h = hi(INITIAL_STACK); + fp = sp; + usp = sp; + + call _set_sicb_iwr; + + CLI R2; + SSYNC; + IDLE; + STI R2; + + R0 = IWR_DISABLE_ALL; + R1 = IWR_DISABLE_ALL; + call _set_sicb_iwr; + + p0.h = hi(COREB_L1_CODE_START); + p0.l = lo(COREB_L1_CODE_START); + jump (p0); +ENDPROC(_coreb_sleep) + +__CPUINIT ENTRY(_coreb_start) [--sp] = reti; @@ -176,12 +214,20 @@ ENTRY(_coreb_start) sp = [p0]; usp = sp; fp = sp; +#ifdef CONFIG_HOTPLUG_CPU + p0.l = _hotplug_coreb; + p0.h = _hotplug_coreb; + r0 = [p0]; + cc = BITTST(r0, 0); + if cc jump 3f; +#endif sp += -12; call _init_pda sp += 12; +#ifdef CONFIG_HOTPLUG_CPU +3: +#endif call _secondary_start_kernel; .L_exit: jump.s .L_exit; ENDPROC(_coreb_start) - -__FINIT diff --git a/arch/blackfin/mach-bf561/smp.c b/arch/blackfin/mach-bf561/smp.c index 0192532e96a..3b9a4bf7dac 100644 --- a/arch/blackfin/mach-bf561/smp.c +++ b/arch/blackfin/mach-bf561/smp.c @@ -11,11 +11,10 @@ #include <linux/delay.h> #include <asm/smp.h> #include <asm/dma.h> +#include <asm/time.h> static DEFINE_SPINLOCK(boot_lock); -static cpumask_t cpu_callin_map; - /* * platform_init_cpus() - Tell the world about how many cores we * have. This is called while setting up the architecture support @@ -66,13 +65,15 @@ void __cpuinit platform_secondary_init(unsigned int cpu) bfin_write_SICB_IAR5(bfin_read_SICA_IAR5()); bfin_write_SICB_IAR6(bfin_read_SICA_IAR6()); bfin_write_SICB_IAR7(bfin_read_SICA_IAR7()); + bfin_write_SICB_IWR0(IWR_DISABLE_ALL); + bfin_write_SICB_IWR1(IWR_DISABLE_ALL); SSYNC(); /* Store CPU-private information to the cpu_data array. */ bfin_setup_cpudata(cpu); /* We are done with local CPU inits, unblock the boot CPU. */ - cpu_set(cpu, cpu_callin_map); + set_cpu_online(cpu, true); spin_lock(&boot_lock); spin_unlock(&boot_lock); } @@ -81,28 +82,28 @@ int __cpuinit platform_boot_secondary(unsigned int cpu, struct task_struct *idle { unsigned long timeout; - /* CoreB already running?! */ - BUG_ON((bfin_read_SICA_SYSCR() & COREB_SRAM_INIT) == 0); - printk(KERN_INFO "Booting Core B.\n"); spin_lock(&boot_lock); - /* Kick CoreB, which should start execution from CORE_SRAM_BASE. */ - SSYNC(); - bfin_write_SICA_SYSCR(bfin_read_SICA_SYSCR() & ~COREB_SRAM_INIT); - SSYNC(); + if ((bfin_read_SICA_SYSCR() & COREB_SRAM_INIT) == 0) { + /* CoreB already running, sending ipi to wakeup it */ + platform_send_ipi_cpu(cpu, IRQ_SUPPLE_0); + } else { + /* Kick CoreB, which should start execution from CORE_SRAM_BASE. */ + bfin_write_SICA_SYSCR(bfin_read_SICA_SYSCR() & ~COREB_SRAM_INIT); + SSYNC(); + } timeout = jiffies + 1 * HZ; while (time_before(jiffies, timeout)) { - if (cpu_isset(cpu, cpu_callin_map)) + if (cpu_online(cpu)) break; udelay(100); barrier(); } - if (cpu_isset(cpu, cpu_callin_map)) { - cpu_set(cpu, cpu_online_map); + if (cpu_online(cpu)) { /* release the lock and let coreb run */ spin_unlock(&boot_lock); return 0; @@ -147,3 +148,20 @@ void platform_clear_ipi(unsigned int cpu) bfin_write_SICB_SYSCR(bfin_read_SICB_SYSCR() | (1 << (10 + cpu))); SSYNC(); } + +/* + * Setup core B's local core timer. + * In SMP, core timer is used for clock event device. + */ +void __cpuinit bfin_local_timer_setup(void) +{ +#if defined(CONFIG_TICKSOURCE_CORETMR) + bfin_coretmr_init(); + bfin_coretmr_clockevent_init(); + get_irq_chip(IRQ_CORETMR)->unmask(IRQ_CORETMR); +#else + /* Power down the core timer, just to play safe. */ + bfin_write_TCNTL(0); +#endif + +} |