diff options
Diffstat (limited to 'arch/arm/mach-spear3xx/spear3xx.c')
| -rw-r--r-- | arch/arm/mach-spear3xx/spear3xx.c | 127 |
1 files changed, 60 insertions, 67 deletions
diff --git a/arch/arm/mach-spear3xx/spear3xx.c b/arch/arm/mach-spear3xx/spear3xx.c index a236925e13b3..a94d8c12ed99 100644 --- a/arch/arm/mach-spear3xx/spear3xx.c +++ b/arch/arm/mach-spear3xx/spear3xx.c @@ -3,8 +3,8 @@ * * SPEAr3XX machines common source file * - * Copyright (C) 2009 ST Microelectronics - * Viresh Kumar<viresh.kumar@st.com> + * Copyright (C) 2009-2012 ST Microelectronics + * Viresh Kumar <viresh.kumar@st.com> * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any @@ -13,76 +13,14 @@ #define pr_fmt(fmt) "SPEAr3xx: " fmt -#include <linux/types.h> -#include <linux/amba/pl061.h> -#include <linux/ptrace.h> +#include <linux/amba/pl022.h> +#include <linux/amba/pl08x.h> +#include <linux/of_irq.h> #include <linux/io.h> #include <asm/hardware/vic.h> -#include <asm/irq.h> -#include <asm/mach/arch.h> #include <mach/generic.h> #include <mach/hardware.h> -/* Add spear3xx machines common devices here */ -/* gpio device registration */ -static struct pl061_platform_data gpio_plat_data = { - .gpio_base = 0, - .irq_base = SPEAR3XX_GPIO_INT_BASE, -}; - -AMBA_APB_DEVICE(spear3xx_gpio, "gpio", 0, SPEAR3XX_ICM3_GPIO_BASE, - {SPEAR3XX_IRQ_BASIC_GPIO}, &gpio_plat_data); - -/* uart device registration */ -AMBA_APB_DEVICE(spear3xx_uart, "uart", 0, SPEAR3XX_ICM1_UART_BASE, - {SPEAR3XX_IRQ_UART}, NULL); - -/* Do spear3xx familiy common initialization part here */ -void __init spear3xx_init(void) -{ - /* nothing to do for now */ -} - -/* This will initialize vic */ -void __init spear3xx_init_irq(void) -{ - vic_init((void __iomem *)VA_SPEAR3XX_ML1_VIC_BASE, 0, ~0, 0); -} - -/* Following will create static virtual/physical mappings */ -struct map_desc spear3xx_io_desc[] __initdata = { - { - .virtual = VA_SPEAR3XX_ICM1_UART_BASE, - .pfn = __phys_to_pfn(SPEAR3XX_ICM1_UART_BASE), - .length = SZ_4K, - .type = MT_DEVICE - }, { - .virtual = VA_SPEAR3XX_ML1_VIC_BASE, - .pfn = __phys_to_pfn(SPEAR3XX_ML1_VIC_BASE), - .length = SZ_4K, - .type = MT_DEVICE - }, { - .virtual = VA_SPEAR3XX_ICM3_SYS_CTRL_BASE, - .pfn = __phys_to_pfn(SPEAR3XX_ICM3_SYS_CTRL_BASE), - .length = SZ_4K, - .type = MT_DEVICE - }, { - .virtual = VA_SPEAR3XX_ICM3_MISC_REG_BASE, - .pfn = __phys_to_pfn(SPEAR3XX_ICM3_MISC_REG_BASE), - .length = SZ_4K, - .type = MT_DEVICE - }, -}; - -/* This will create static memory mapping for selected devices */ -void __init spear3xx_map_io(void) -{ - iotable_init(spear3xx_io_desc, ARRAY_SIZE(spear3xx_io_desc)); - - /* This will initialize clock framework */ - spear3xx_clk_init(); -} - /* pad multiplexing support */ /* devices */ static struct pmx_dev_mode pmx_firda_modes[] = { @@ -508,6 +446,51 @@ struct pmx_dev spear3xx_pmx_plgpio_45_46_49_50 = { }; #endif /* CONFIG_MACH_SPEAR310 || CONFIG_MACH_SPEAR320 */ +/* ssp device registration */ +struct pl022_ssp_controller pl022_plat_data = { + .bus_id = 0, + .enable_dma = 1, + .dma_filter = pl08x_filter_id, + .dma_tx_param = "ssp0_tx", + .dma_rx_param = "ssp0_rx", + /* + * This is number of spi devices that can be connected to spi. There are + * two type of chipselects on which slave devices can work. One is chip + * select provided by spi masters other is controlled through external + * gpio's. We can't use chipselect provided from spi master (because as + * soon as FIFO becomes empty, CS is disabled and transfer ends). So + * this number now depends on number of gpios available for spi. each + * slave on each master requires a separate gpio pin. + */ + .num_chipselect = 2, +}; + +/* + * Following will create 16MB static virtual/physical mappings + * PHYSICAL VIRTUAL + * 0xD0000000 0xFD000000 + * 0xFC000000 0xFC000000 + */ +struct map_desc spear3xx_io_desc[] __initdata = { + { + .virtual = VA_SPEAR3XX_ICM1_2_BASE, + .pfn = __phys_to_pfn(SPEAR3XX_ICM1_2_BASE), + .length = SZ_16M, + .type = MT_DEVICE + }, { + .virtual = VA_SPEAR3XX_ICM3_SMI_CTRL_BASE, + .pfn = __phys_to_pfn(SPEAR3XX_ICM3_SMI_CTRL_BASE), + .length = SZ_16M, + .type = MT_DEVICE + }, +}; + +/* This will create static memory mapping for selected devices */ +void __init spear3xx_map_io(void) +{ + iotable_init(spear3xx_io_desc, ARRAY_SIZE(spear3xx_io_desc)); +} + static void __init spear3xx_timer_init(void) { char pclk_name[] = "pll3_48m_clk"; @@ -538,3 +521,13 @@ static void __init spear3xx_timer_init(void) struct sys_timer spear3xx_timer = { .init = spear3xx_timer_init, }; + +static const struct of_device_id vic_of_match[] __initconst = { + { .compatible = "arm,pl190-vic", .data = vic_of_init, }, + { /* Sentinel */ } +}; + +void __init spear3xx_dt_init_irq(void) +{ + of_irq_init(vic_of_match); +} |