diff options
Diffstat (limited to 'arch/arm/mach-spear3xx/spear310.c')
| -rw-r--r-- | arch/arm/mach-spear3xx/spear310.c | 476 |
1 files changed, 330 insertions, 146 deletions
diff --git a/arch/arm/mach-spear3xx/spear310.c b/arch/arm/mach-spear3xx/spear310.c index febaa6fcfb6a..f0842a58dc02 100644 --- a/arch/arm/mach-spear3xx/spear310.c +++ b/arch/arm/mach-spear3xx/spear310.c @@ -3,141 +3,84 @@ * * SPEAr310 machine 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 * warranty of any kind, whether express or implied. */ -#include <linux/ptrace.h> -#include <asm/irq.h> +#define pr_fmt(fmt) "SPEAr310: " fmt + +#include <linux/amba/pl08x.h> +#include <linux/amba/serial.h> +#include <linux/of_platform.h> +#include <asm/hardware/vic.h> +#include <asm/mach/arch.h> #include <plat/shirq.h> #include <mach/generic.h> -#include <mach/hardware.h> - -/* pad multiplexing support */ -/* muxing registers */ -#define PAD_MUX_CONFIG_REG 0x08 - -/* devices */ -static struct pmx_dev_mode pmx_emi_cs_0_1_4_5_modes[] = { - { - .ids = 0x00, - .mask = PMX_TIMER_3_4_MASK, - }, -}; - -struct pmx_dev spear310_pmx_emi_cs_0_1_4_5 = { - .name = "emi_cs_0_1_4_5", - .modes = pmx_emi_cs_0_1_4_5_modes, - .mode_count = ARRAY_SIZE(pmx_emi_cs_0_1_4_5_modes), - .enb_on_reset = 1, -}; - -static struct pmx_dev_mode pmx_emi_cs_2_3_modes[] = { - { - .ids = 0x00, - .mask = PMX_TIMER_1_2_MASK, - }, -}; - -struct pmx_dev spear310_pmx_emi_cs_2_3 = { - .name = "emi_cs_2_3", - .modes = pmx_emi_cs_2_3_modes, - .mode_count = ARRAY_SIZE(pmx_emi_cs_2_3_modes), - .enb_on_reset = 1, -}; - -static struct pmx_dev_mode pmx_uart1_modes[] = { - { - .ids = 0x00, - .mask = PMX_FIRDA_MASK, - }, -}; - -struct pmx_dev spear310_pmx_uart1 = { - .name = "uart1", - .modes = pmx_uart1_modes, - .mode_count = ARRAY_SIZE(pmx_uart1_modes), - .enb_on_reset = 1, -}; - -static struct pmx_dev_mode pmx_uart2_modes[] = { - { - .ids = 0x00, - .mask = PMX_TIMER_1_2_MASK, - }, -}; - -struct pmx_dev spear310_pmx_uart2 = { - .name = "uart2", - .modes = pmx_uart2_modes, - .mode_count = ARRAY_SIZE(pmx_uart2_modes), - .enb_on_reset = 1, -}; - -static struct pmx_dev_mode pmx_uart3_4_5_modes[] = { - { - .ids = 0x00, - .mask = PMX_UART0_MODEM_MASK, - }, -}; - -struct pmx_dev spear310_pmx_uart3_4_5 = { - .name = "uart3_4_5", - .modes = pmx_uart3_4_5_modes, - .mode_count = ARRAY_SIZE(pmx_uart3_4_5_modes), - .enb_on_reset = 1, -}; - -static struct pmx_dev_mode pmx_fsmc_modes[] = { - { - .ids = 0x00, - .mask = PMX_SSP_CS_MASK, - }, -}; - -struct pmx_dev spear310_pmx_fsmc = { - .name = "fsmc", - .modes = pmx_fsmc_modes, - .mode_count = ARRAY_SIZE(pmx_fsmc_modes), - .enb_on_reset = 1, -}; - -static struct pmx_dev_mode pmx_rs485_0_1_modes[] = { - { - .ids = 0x00, - .mask = PMX_MII_MASK, - }, -}; - -struct pmx_dev spear310_pmx_rs485_0_1 = { - .name = "rs485_0_1", - .modes = pmx_rs485_0_1_modes, - .mode_count = ARRAY_SIZE(pmx_rs485_0_1_modes), - .enb_on_reset = 1, -}; - -static struct pmx_dev_mode pmx_tdm0_modes[] = { - { - .ids = 0x00, - .mask = PMX_MII_MASK, - }, -}; - -struct pmx_dev spear310_pmx_tdm0 = { - .name = "tdm0", - .modes = pmx_tdm0_modes, - .mode_count = ARRAY_SIZE(pmx_tdm0_modes), - .enb_on_reset = 1, -}; +#include <mach/spear.h> + +#define SPEAR310_UART1_BASE UL(0xB2000000) +#define SPEAR310_UART2_BASE UL(0xB2080000) +#define SPEAR310_UART3_BASE UL(0xB2100000) +#define SPEAR310_UART4_BASE UL(0xB2180000) +#define SPEAR310_UART5_BASE UL(0xB2200000) +#define SPEAR310_SOC_CONFIG_BASE UL(0xB4000000) + +/* Interrupt registers offsets and masks */ +#define SPEAR310_INT_STS_MASK_REG 0x04 +#define SPEAR310_SMII0_IRQ_MASK (1 << 0) +#define SPEAR310_SMII1_IRQ_MASK (1 << 1) +#define SPEAR310_SMII2_IRQ_MASK (1 << 2) +#define SPEAR310_SMII3_IRQ_MASK (1 << 3) +#define SPEAR310_WAKEUP_SMII0_IRQ_MASK (1 << 4) +#define SPEAR310_WAKEUP_SMII1_IRQ_MASK (1 << 5) +#define SPEAR310_WAKEUP_SMII2_IRQ_MASK (1 << 6) +#define SPEAR310_WAKEUP_SMII3_IRQ_MASK (1 << 7) +#define SPEAR310_UART1_IRQ_MASK (1 << 8) +#define SPEAR310_UART2_IRQ_MASK (1 << 9) +#define SPEAR310_UART3_IRQ_MASK (1 << 10) +#define SPEAR310_UART4_IRQ_MASK (1 << 11) +#define SPEAR310_UART5_IRQ_MASK (1 << 12) +#define SPEAR310_EMI_IRQ_MASK (1 << 13) +#define SPEAR310_TDM_HDLC_IRQ_MASK (1 << 14) +#define SPEAR310_RS485_0_IRQ_MASK (1 << 15) +#define SPEAR310_RS485_1_IRQ_MASK (1 << 16) + +#define SPEAR310_SHIRQ_RAS1_MASK 0x000FF +#define SPEAR310_SHIRQ_RAS2_MASK 0x01F00 +#define SPEAR310_SHIRQ_RAS3_MASK 0x02000 +#define SPEAR310_SHIRQ_INTRCOMM_RAS_MASK 0x1C000 + +/* SPEAr310 Virtual irq definitions */ +/* IRQs sharing IRQ_GEN_RAS_1 */ +#define SPEAR310_VIRQ_SMII0 (SPEAR3XX_VIRQ_START + 0) +#define SPEAR310_VIRQ_SMII1 (SPEAR3XX_VIRQ_START + 1) +#define SPEAR310_VIRQ_SMII2 (SPEAR3XX_VIRQ_START + 2) +#define SPEAR310_VIRQ_SMII3 (SPEAR3XX_VIRQ_START + 3) +#define SPEAR310_VIRQ_WAKEUP_SMII0 (SPEAR3XX_VIRQ_START + 4) +#define SPEAR310_VIRQ_WAKEUP_SMII1 (SPEAR3XX_VIRQ_START + 5) +#define SPEAR310_VIRQ_WAKEUP_SMII2 (SPEAR3XX_VIRQ_START + 6) +#define SPEAR310_VIRQ_WAKEUP_SMII3 (SPEAR3XX_VIRQ_START + 7) + +/* IRQs sharing IRQ_GEN_RAS_2 */ +#define SPEAR310_VIRQ_UART1 (SPEAR3XX_VIRQ_START + 8) +#define SPEAR310_VIRQ_UART2 (SPEAR3XX_VIRQ_START + 9) +#define SPEAR310_VIRQ_UART3 (SPEAR3XX_VIRQ_START + 10) +#define SPEAR310_VIRQ_UART4 (SPEAR3XX_VIRQ_START + 11) +#define SPEAR310_VIRQ_UART5 (SPEAR3XX_VIRQ_START + 12) + +/* IRQs sharing IRQ_GEN_RAS_3 */ +#define SPEAR310_VIRQ_EMI (SPEAR3XX_VIRQ_START + 13) +#define SPEAR310_VIRQ_PLGPIO (SPEAR3XX_VIRQ_START + 14) + +/* IRQs sharing IRQ_INTRCOMM_RAS_ARM */ +#define SPEAR310_VIRQ_TDM_HDLC (SPEAR3XX_VIRQ_START + 15) +#define SPEAR310_VIRQ_RS485_0 (SPEAR3XX_VIRQ_START + 16) +#define SPEAR310_VIRQ_RS485_1 (SPEAR3XX_VIRQ_START + 17) -/* pmx driver structure */ -static struct pmx_driver pmx_driver = { - .mux_reg = {.offset = PAD_MUX_CONFIG_REG, .mask = 0x00007fff}, -}; /* spear3xx shared irq */ static struct shirq_dev_config shirq_ras1_config[] = { @@ -255,17 +198,247 @@ static struct spear_shirq shirq_intrcomm_ras = { }, }; -/* Add spear310 specific devices here */ +/* DMAC platform data's slave info */ +struct pl08x_channel_data spear310_dma_info[] = { + { + .bus_id = "uart0_rx", + .min_signal = 2, + .max_signal = 2, + .muxval = 0, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "uart0_tx", + .min_signal = 3, + .max_signal = 3, + .muxval = 0, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "ssp0_rx", + .min_signal = 8, + .max_signal = 8, + .muxval = 0, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "ssp0_tx", + .min_signal = 9, + .max_signal = 9, + .muxval = 0, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "i2c_rx", + .min_signal = 10, + .max_signal = 10, + .muxval = 0, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "i2c_tx", + .min_signal = 11, + .max_signal = 11, + .muxval = 0, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "irda", + .min_signal = 12, + .max_signal = 12, + .muxval = 0, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "adc", + .min_signal = 13, + .max_signal = 13, + .muxval = 0, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "to_jpeg", + .min_signal = 14, + .max_signal = 14, + .muxval = 0, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "from_jpeg", + .min_signal = 15, + .max_signal = 15, + .muxval = 0, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "uart1_rx", + .min_signal = 0, + .max_signal = 0, + .muxval = 1, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "uart1_tx", + .min_signal = 1, + .max_signal = 1, + .muxval = 1, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "uart2_rx", + .min_signal = 2, + .max_signal = 2, + .muxval = 1, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "uart2_tx", + .min_signal = 3, + .max_signal = 3, + .muxval = 1, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "uart3_rx", + .min_signal = 4, + .max_signal = 4, + .muxval = 1, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "uart3_tx", + .min_signal = 5, + .max_signal = 5, + .muxval = 1, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "uart4_rx", + .min_signal = 6, + .max_signal = 6, + .muxval = 1, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "uart4_tx", + .min_signal = 7, + .max_signal = 7, + .muxval = 1, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "uart5_rx", + .min_signal = 8, + .max_signal = 8, + .muxval = 1, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "uart5_tx", + .min_signal = 9, + .max_signal = 9, + .muxval = 1, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "ras5_rx", + .min_signal = 10, + .max_signal = 10, + .muxval = 1, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "ras5_tx", + .min_signal = 11, + .max_signal = 11, + .muxval = 1, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "ras6_rx", + .min_signal = 12, + .max_signal = 12, + .muxval = 1, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "ras6_tx", + .min_signal = 13, + .max_signal = 13, + .muxval = 1, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "ras7_rx", + .min_signal = 14, + .max_signal = 14, + .muxval = 1, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "ras7_tx", + .min_signal = 15, + .max_signal = 15, + .muxval = 1, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, +}; -/* spear310 routines */ -void __init spear310_init(struct pmx_mode *pmx_mode, struct pmx_dev **pmx_devs, - u8 pmx_dev_count) +/* uart devices plat data */ +static struct amba_pl011_data spear310_uart_data[] = { + { + .dma_filter = pl08x_filter_id, + .dma_tx_param = "uart1_tx", + .dma_rx_param = "uart1_rx", + }, { + .dma_filter = pl08x_filter_id, + .dma_tx_param = "uart2_tx", + .dma_rx_param = "uart2_rx", + }, { + .dma_filter = pl08x_filter_id, + .dma_tx_param = "uart3_tx", + .dma_rx_param = "uart3_rx", + }, { + .dma_filter = pl08x_filter_id, + .dma_tx_param = "uart4_tx", + .dma_rx_param = "uart4_rx", + }, { + .dma_filter = pl08x_filter_id, + .dma_tx_param = "uart5_tx", + .dma_rx_param = "uart5_rx", + }, +}; + +/* Add SPEAr310 auxdata to pass platform data */ +static struct of_dev_auxdata spear310_auxdata_lookup[] __initdata = { + OF_DEV_AUXDATA("arm,pl022", SPEAR3XX_ICM1_SSP_BASE, NULL, + &pl022_plat_data), + OF_DEV_AUXDATA("arm,pl080", SPEAR3XX_ICM3_DMA_BASE, NULL, + &pl080_plat_data), + OF_DEV_AUXDATA("arm,pl011", SPEAR310_UART1_BASE, NULL, + &spear310_uart_data[0]), + OF_DEV_AUXDATA("arm,pl011", SPEAR310_UART2_BASE, NULL, + &spear310_uart_data[1]), + OF_DEV_AUXDATA("arm,pl011", SPEAR310_UART3_BASE, NULL, + &spear310_uart_data[2]), + OF_DEV_AUXDATA("arm,pl011", SPEAR310_UART4_BASE, NULL, + &spear310_uart_data[3]), + OF_DEV_AUXDATA("arm,pl011", SPEAR310_UART5_BASE, NULL, + &spear310_uart_data[4]), + {} +}; + +static void __init spear310_dt_init(void) { void __iomem *base; - int ret = 0; + int ret; - /* call spear3xx family common init function */ - spear3xx_init(); + pl080_plat_data.slave_channels = spear310_dma_info; + pl080_plat_data.num_slave_channels = ARRAY_SIZE(spear310_dma_info); + + of_platform_populate(NULL, of_default_bus_match_table, + spear310_auxdata_lookup, NULL); /* shared irq registration */ base = ioremap(SPEAR310_SOC_CONFIG_BASE, SZ_4K); @@ -274,35 +447,46 @@ void __init spear310_init(struct pmx_mode *pmx_mode, struct pmx_dev **pmx_devs, shirq_ras1.regs.base = base; ret = spear_shirq_register(&shirq_ras1); if (ret) - printk(KERN_ERR "Error registering Shared IRQ 1\n"); + pr_err("Error registering Shared IRQ 1\n"); /* shirq 2 */ shirq_ras2.regs.base = base; ret = spear_shirq_register(&shirq_ras2); if (ret) - printk(KERN_ERR "Error registering Shared IRQ 2\n"); + pr_err("Error registering Shared IRQ 2\n"); /* shirq 3 */ shirq_ras3.regs.base = base; ret = spear_shirq_register(&shirq_ras3); if (ret) - printk(KERN_ERR "Error registering Shared IRQ 3\n"); + pr_err("Error registering Shared IRQ 3\n"); /* shirq 4 */ shirq_intrcomm_ras.regs.base = base; ret = spear_shirq_register(&shirq_intrcomm_ras); if (ret) - printk(KERN_ERR "Error registering Shared IRQ 4\n"); + pr_err("Error registering Shared IRQ 4\n"); } +} - /* pmx initialization */ - pmx_driver.base = base; - pmx_driver.mode = pmx_mode; - pmx_driver.devs = pmx_devs; - pmx_driver.devs_count = pmx_dev_count; +static const char * const spear310_dt_board_compat[] = { + "st,spear310", + "st,spear310-evb", + NULL, +}; - ret = pmx_register(&pmx_driver); - if (ret) - printk(KERN_ERR "padmux: registration failed. err no: %d\n", - ret); +static void __init spear310_map_io(void) +{ + spear3xx_map_io(); + spear310_clk_init(); } + +DT_MACHINE_START(SPEAR310_DT, "ST SPEAr310 SoC with Flattened Device Tree") + .map_io = spear310_map_io, + .init_irq = spear3xx_dt_init_irq, + .handle_irq = vic_handle_irq, + .timer = &spear3xx_timer, + .init_machine = spear310_dt_init, + .restart = spear_restart, + .dt_compat = spear310_dt_board_compat, +MACHINE_END |