diff options
Diffstat (limited to 'arch/arm/mach-spear3xx/spear3xx.c')
| -rw-r--r-- | arch/arm/mach-spear3xx/spear3xx.c | 552 |
1 files changed, 72 insertions, 480 deletions
diff --git a/arch/arm/mach-spear3xx/spear3xx.c b/arch/arm/mach-spear3xx/spear3xx.c index b1733c37f209..98144baf8883 100644 --- a/arch/arm/mach-spear3xx/spear3xx.c +++ b/arch/arm/mach-spear3xx/spear3xx.c @@ -3,71 +3,79 @@ * * 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.linux@gmail.com> * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any * warranty of any kind, whether express or implied. */ -#include <linux/types.h> -#include <linux/amba/pl061.h> -#include <linux/ptrace.h> +#define pr_fmt(fmt) "SPEAr3xx: " fmt + +#include <linux/amba/pl022.h> +#include <linux/amba/pl08x.h> +#include <linux/of_irq.h> #include <linux/io.h> +#include <asm/hardware/pl080.h> #include <asm/hardware/vic.h> -#include <asm/irq.h> -#include <asm/mach/arch.h> +#include <plat/pl080.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, +#include <mach/spear.h> + +/* 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, +}; + +/* dmac device registration */ +struct pl08x_platform_data pl080_plat_data = { + .memcpy_channel = { + .bus_id = "memcpy", + .cctl_memcpy = + (PL080_BSIZE_16 << PL080_CONTROL_SB_SIZE_SHIFT | \ + PL080_BSIZE_16 << PL080_CONTROL_DB_SIZE_SHIFT | \ + PL080_WIDTH_32BIT << PL080_CONTROL_SWIDTH_SHIFT | \ + PL080_WIDTH_32BIT << PL080_CONTROL_DWIDTH_SHIFT | \ + PL080_CONTROL_PROT_BUFF | PL080_CONTROL_PROT_CACHE | \ + PL080_CONTROL_PROT_SYS), + }, + .lli_buses = PL08X_AHB1, + .mem_buses = PL08X_AHB1, + .get_signal = pl080_get_signal, + .put_signal = pl080_put_signal, }; -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 */ +/* + * 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_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, + .virtual = VA_SPEAR3XX_ICM1_2_BASE, + .pfn = __phys_to_pfn(SPEAR3XX_ICM1_2_BASE), + .length = SZ_16M, .type = MT_DEVICE }, { - .virtual = VA_SPEAR3XX_ICM3_MISC_REG_BASE, - .pfn = __phys_to_pfn(SPEAR3XX_ICM3_MISC_REG_BASE), - .length = SZ_4K, + .virtual = VA_SPEAR3XX_ICM3_SMI_CTRL_BASE, + .pfn = __phys_to_pfn(SPEAR3XX_ICM3_SMI_CTRL_BASE), + .length = SZ_16M, .type = MT_DEVICE }, }; @@ -76,441 +84,15 @@ struct map_desc spear3xx_io_desc[] __initdata = { 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[] = { - { - .ids = 0xffffffff, - .mask = PMX_FIRDA_MASK, - }, -}; - -struct pmx_dev spear3xx_pmx_firda = { - .name = "firda", - .modes = pmx_firda_modes, - .mode_count = ARRAY_SIZE(pmx_firda_modes), - .enb_on_reset = 0, -}; - -static struct pmx_dev_mode pmx_i2c_modes[] = { - { - .ids = 0xffffffff, - .mask = PMX_I2C_MASK, - }, -}; - -struct pmx_dev spear3xx_pmx_i2c = { - .name = "i2c", - .modes = pmx_i2c_modes, - .mode_count = ARRAY_SIZE(pmx_i2c_modes), - .enb_on_reset = 0, -}; - -static struct pmx_dev_mode pmx_ssp_cs_modes[] = { - { - .ids = 0xffffffff, - .mask = PMX_SSP_CS_MASK, - }, -}; - -struct pmx_dev spear3xx_pmx_ssp_cs = { - .name = "ssp_chip_selects", - .modes = pmx_ssp_cs_modes, - .mode_count = ARRAY_SIZE(pmx_ssp_cs_modes), - .enb_on_reset = 0, -}; - -static struct pmx_dev_mode pmx_ssp_modes[] = { - { - .ids = 0xffffffff, - .mask = PMX_SSP_MASK, - }, -}; - -struct pmx_dev spear3xx_pmx_ssp = { - .name = "ssp", - .modes = pmx_ssp_modes, - .mode_count = ARRAY_SIZE(pmx_ssp_modes), - .enb_on_reset = 0, -}; - -static struct pmx_dev_mode pmx_mii_modes[] = { - { - .ids = 0xffffffff, - .mask = PMX_MII_MASK, - }, -}; - -struct pmx_dev spear3xx_pmx_mii = { - .name = "mii", - .modes = pmx_mii_modes, - .mode_count = ARRAY_SIZE(pmx_mii_modes), - .enb_on_reset = 0, -}; - -static struct pmx_dev_mode pmx_gpio_pin0_modes[] = { - { - .ids = 0xffffffff, - .mask = PMX_GPIO_PIN0_MASK, - }, -}; - -struct pmx_dev spear3xx_pmx_gpio_pin0 = { - .name = "gpio_pin0", - .modes = pmx_gpio_pin0_modes, - .mode_count = ARRAY_SIZE(pmx_gpio_pin0_modes), - .enb_on_reset = 0, -}; - -static struct pmx_dev_mode pmx_gpio_pin1_modes[] = { - { - .ids = 0xffffffff, - .mask = PMX_GPIO_PIN1_MASK, - }, -}; - -struct pmx_dev spear3xx_pmx_gpio_pin1 = { - .name = "gpio_pin1", - .modes = pmx_gpio_pin1_modes, - .mode_count = ARRAY_SIZE(pmx_gpio_pin1_modes), - .enb_on_reset = 0, -}; - -static struct pmx_dev_mode pmx_gpio_pin2_modes[] = { - { - .ids = 0xffffffff, - .mask = PMX_GPIO_PIN2_MASK, - }, -}; - -struct pmx_dev spear3xx_pmx_gpio_pin2 = { - .name = "gpio_pin2", - .modes = pmx_gpio_pin2_modes, - .mode_count = ARRAY_SIZE(pmx_gpio_pin2_modes), - .enb_on_reset = 0, -}; - -static struct pmx_dev_mode pmx_gpio_pin3_modes[] = { - { - .ids = 0xffffffff, - .mask = PMX_GPIO_PIN3_MASK, - }, -}; - -struct pmx_dev spear3xx_pmx_gpio_pin3 = { - .name = "gpio_pin3", - .modes = pmx_gpio_pin3_modes, - .mode_count = ARRAY_SIZE(pmx_gpio_pin3_modes), - .enb_on_reset = 0, -}; - -static struct pmx_dev_mode pmx_gpio_pin4_modes[] = { - { - .ids = 0xffffffff, - .mask = PMX_GPIO_PIN4_MASK, - }, -}; - -struct pmx_dev spear3xx_pmx_gpio_pin4 = { - .name = "gpio_pin4", - .modes = pmx_gpio_pin4_modes, - .mode_count = ARRAY_SIZE(pmx_gpio_pin4_modes), - .enb_on_reset = 0, -}; - -static struct pmx_dev_mode pmx_gpio_pin5_modes[] = { - { - .ids = 0xffffffff, - .mask = PMX_GPIO_PIN5_MASK, - }, -}; - -struct pmx_dev spear3xx_pmx_gpio_pin5 = { - .name = "gpio_pin5", - .modes = pmx_gpio_pin5_modes, - .mode_count = ARRAY_SIZE(pmx_gpio_pin5_modes), - .enb_on_reset = 0, -}; - -static struct pmx_dev_mode pmx_uart0_modem_modes[] = { - { - .ids = 0xffffffff, - .mask = PMX_UART0_MODEM_MASK, - }, -}; - -struct pmx_dev spear3xx_pmx_uart0_modem = { - .name = "uart0_modem", - .modes = pmx_uart0_modem_modes, - .mode_count = ARRAY_SIZE(pmx_uart0_modem_modes), - .enb_on_reset = 0, -}; - -static struct pmx_dev_mode pmx_uart0_modes[] = { - { - .ids = 0xffffffff, - .mask = PMX_UART0_MASK, - }, -}; - -struct pmx_dev spear3xx_pmx_uart0 = { - .name = "uart0", - .modes = pmx_uart0_modes, - .mode_count = ARRAY_SIZE(pmx_uart0_modes), - .enb_on_reset = 0, -}; - -static struct pmx_dev_mode pmx_timer_3_4_modes[] = { - { - .ids = 0xffffffff, - .mask = PMX_TIMER_3_4_MASK, - }, -}; - -struct pmx_dev spear3xx_pmx_timer_3_4 = { - .name = "timer_3_4", - .modes = pmx_timer_3_4_modes, - .mode_count = ARRAY_SIZE(pmx_timer_3_4_modes), - .enb_on_reset = 0, -}; - -static struct pmx_dev_mode pmx_timer_1_2_modes[] = { - { - .ids = 0xffffffff, - .mask = PMX_TIMER_1_2_MASK, - }, -}; - -struct pmx_dev spear3xx_pmx_timer_1_2 = { - .name = "timer_1_2", - .modes = pmx_timer_1_2_modes, - .mode_count = ARRAY_SIZE(pmx_timer_1_2_modes), - .enb_on_reset = 0, -}; - -#if defined(CONFIG_MACH_SPEAR310) || defined(CONFIG_MACH_SPEAR320) -/* plgpios devices */ -static struct pmx_dev_mode pmx_plgpio_0_1_modes[] = { - { - .ids = 0x00, - .mask = PMX_FIRDA_MASK, - }, -}; - -struct pmx_dev spear3xx_pmx_plgpio_0_1 = { - .name = "plgpio 0 and 1", - .modes = pmx_plgpio_0_1_modes, - .mode_count = ARRAY_SIZE(pmx_plgpio_0_1_modes), - .enb_on_reset = 1, -}; - -static struct pmx_dev_mode pmx_plgpio_2_3_modes[] = { - { - .ids = 0x00, - .mask = PMX_UART0_MASK, - }, -}; - -struct pmx_dev spear3xx_pmx_plgpio_2_3 = { - .name = "plgpio 2 and 3", - .modes = pmx_plgpio_2_3_modes, - .mode_count = ARRAY_SIZE(pmx_plgpio_2_3_modes), - .enb_on_reset = 1, -}; - -static struct pmx_dev_mode pmx_plgpio_4_5_modes[] = { - { - .ids = 0x00, - .mask = PMX_I2C_MASK, - }, -}; - -struct pmx_dev spear3xx_pmx_plgpio_4_5 = { - .name = "plgpio 4 and 5", - .modes = pmx_plgpio_4_5_modes, - .mode_count = ARRAY_SIZE(pmx_plgpio_4_5_modes), - .enb_on_reset = 1, -}; - -static struct pmx_dev_mode pmx_plgpio_6_9_modes[] = { - { - .ids = 0x00, - .mask = PMX_SSP_MASK, - }, -}; - -struct pmx_dev spear3xx_pmx_plgpio_6_9 = { - .name = "plgpio 6 to 9", - .modes = pmx_plgpio_6_9_modes, - .mode_count = ARRAY_SIZE(pmx_plgpio_6_9_modes), - .enb_on_reset = 1, -}; - -static struct pmx_dev_mode pmx_plgpio_10_27_modes[] = { - { - .ids = 0x00, - .mask = PMX_MII_MASK, - }, -}; - -struct pmx_dev spear3xx_pmx_plgpio_10_27 = { - .name = "plgpio 10 to 27", - .modes = pmx_plgpio_10_27_modes, - .mode_count = ARRAY_SIZE(pmx_plgpio_10_27_modes), - .enb_on_reset = 1, -}; - -static struct pmx_dev_mode pmx_plgpio_28_modes[] = { - { - .ids = 0x00, - .mask = PMX_GPIO_PIN0_MASK, - }, -}; - -struct pmx_dev spear3xx_pmx_plgpio_28 = { - .name = "plgpio 28", - .modes = pmx_plgpio_28_modes, - .mode_count = ARRAY_SIZE(pmx_plgpio_28_modes), - .enb_on_reset = 1, -}; - -static struct pmx_dev_mode pmx_plgpio_29_modes[] = { - { - .ids = 0x00, - .mask = PMX_GPIO_PIN1_MASK, - }, -}; - -struct pmx_dev spear3xx_pmx_plgpio_29 = { - .name = "plgpio 29", - .modes = pmx_plgpio_29_modes, - .mode_count = ARRAY_SIZE(pmx_plgpio_29_modes), - .enb_on_reset = 1, -}; - -static struct pmx_dev_mode pmx_plgpio_30_modes[] = { - { - .ids = 0x00, - .mask = PMX_GPIO_PIN2_MASK, - }, -}; - -struct pmx_dev spear3xx_pmx_plgpio_30 = { - .name = "plgpio 30", - .modes = pmx_plgpio_30_modes, - .mode_count = ARRAY_SIZE(pmx_plgpio_30_modes), - .enb_on_reset = 1, -}; - -static struct pmx_dev_mode pmx_plgpio_31_modes[] = { - { - .ids = 0x00, - .mask = PMX_GPIO_PIN3_MASK, - }, -}; - -struct pmx_dev spear3xx_pmx_plgpio_31 = { - .name = "plgpio 31", - .modes = pmx_plgpio_31_modes, - .mode_count = ARRAY_SIZE(pmx_plgpio_31_modes), - .enb_on_reset = 1, -}; - -static struct pmx_dev_mode pmx_plgpio_32_modes[] = { - { - .ids = 0x00, - .mask = PMX_GPIO_PIN4_MASK, - }, -}; - -struct pmx_dev spear3xx_pmx_plgpio_32 = { - .name = "plgpio 32", - .modes = pmx_plgpio_32_modes, - .mode_count = ARRAY_SIZE(pmx_plgpio_32_modes), - .enb_on_reset = 1, -}; - -static struct pmx_dev_mode pmx_plgpio_33_modes[] = { - { - .ids = 0x00, - .mask = PMX_GPIO_PIN5_MASK, - }, -}; - -struct pmx_dev spear3xx_pmx_plgpio_33 = { - .name = "plgpio 33", - .modes = pmx_plgpio_33_modes, - .mode_count = ARRAY_SIZE(pmx_plgpio_33_modes), - .enb_on_reset = 1, -}; - -static struct pmx_dev_mode pmx_plgpio_34_36_modes[] = { - { - .ids = 0x00, - .mask = PMX_SSP_CS_MASK, - }, -}; - -struct pmx_dev spear3xx_pmx_plgpio_34_36 = { - .name = "plgpio 34 to 36", - .modes = pmx_plgpio_34_36_modes, - .mode_count = ARRAY_SIZE(pmx_plgpio_34_36_modes), - .enb_on_reset = 1, -}; - -static struct pmx_dev_mode pmx_plgpio_37_42_modes[] = { - { - .ids = 0x00, - .mask = PMX_UART0_MODEM_MASK, - }, -}; - -struct pmx_dev spear3xx_pmx_plgpio_37_42 = { - .name = "plgpio 37 to 42", - .modes = pmx_plgpio_37_42_modes, - .mode_count = ARRAY_SIZE(pmx_plgpio_37_42_modes), - .enb_on_reset = 1, -}; - -static struct pmx_dev_mode pmx_plgpio_43_44_47_48_modes[] = { - { - .ids = 0x00, - .mask = PMX_TIMER_1_2_MASK, - }, -}; - -struct pmx_dev spear3xx_pmx_plgpio_43_44_47_48 = { - .name = "plgpio 43, 44, 47 and 48", - .modes = pmx_plgpio_43_44_47_48_modes, - .mode_count = ARRAY_SIZE(pmx_plgpio_43_44_47_48_modes), - .enb_on_reset = 1, -}; - -static struct pmx_dev_mode pmx_plgpio_45_46_49_50_modes[] = { - { - .ids = 0x00, - .mask = PMX_TIMER_3_4_MASK, - }, -}; - -struct pmx_dev spear3xx_pmx_plgpio_45_46_49_50 = { - .name = "plgpio 45, 46, 49 and 50", - .modes = pmx_plgpio_45_46_49_50_modes, - .mode_count = ARRAY_SIZE(pmx_plgpio_45_46_49_50_modes), - .enb_on_reset = 1, -}; -#endif /* CONFIG_MACH_SPEAR310 || CONFIG_MACH_SPEAR320 */ - static void __init spear3xx_timer_init(void) { - char pclk_name[] = "pll3_48m_clk"; + char pclk_name[] = "pll3_clk"; struct clk *gpt_clk, *pclk; + spear3xx_clk_init(); + /* get the system timer clock */ gpt_clk = clk_get_sys("gpt0", NULL); if (IS_ERR(gpt_clk)) { @@ -530,9 +112,19 @@ static void __init spear3xx_timer_init(void) clk_put(gpt_clk); clk_put(pclk); - spear_setup_timer(); + spear_setup_of_timer(); } 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); +} |