| /* |
| * arch/arm/mach-spear3xx/spear320.c |
| * |
| * SPEAr320 machine source file |
| * |
| * 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. |
| */ |
| |
| #define pr_fmt(fmt) "SPEAr320: " fmt |
| |
| #include <linux/amba/pl022.h> |
| #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/spear.h> |
| |
| #define SPEAR320_UART1_BASE UL(0xA3000000) |
| #define SPEAR320_UART2_BASE UL(0xA4000000) |
| #define SPEAR320_SSP0_BASE UL(0xA5000000) |
| #define SPEAR320_SSP1_BASE UL(0xA6000000) |
| |
| /* Interrupt registers offsets and masks */ |
| #define SPEAR320_INT_STS_MASK_REG 0x04 |
| #define SPEAR320_INT_CLR_MASK_REG 0x04 |
| #define SPEAR320_INT_ENB_MASK_REG 0x08 |
| #define SPEAR320_GPIO_IRQ_MASK (1 << 0) |
| #define SPEAR320_I2S_PLAY_IRQ_MASK (1 << 1) |
| #define SPEAR320_I2S_REC_IRQ_MASK (1 << 2) |
| #define SPEAR320_EMI_IRQ_MASK (1 << 7) |
| #define SPEAR320_CLCD_IRQ_MASK (1 << 8) |
| #define SPEAR320_SPP_IRQ_MASK (1 << 9) |
| #define SPEAR320_SDHCI_IRQ_MASK (1 << 10) |
| #define SPEAR320_CAN_U_IRQ_MASK (1 << 11) |
| #define SPEAR320_CAN_L_IRQ_MASK (1 << 12) |
| #define SPEAR320_UART1_IRQ_MASK (1 << 13) |
| #define SPEAR320_UART2_IRQ_MASK (1 << 14) |
| #define SPEAR320_SSP1_IRQ_MASK (1 << 15) |
| #define SPEAR320_SSP2_IRQ_MASK (1 << 16) |
| #define SPEAR320_SMII0_IRQ_MASK (1 << 17) |
| #define SPEAR320_MII1_SMII1_IRQ_MASK (1 << 18) |
| #define SPEAR320_WAKEUP_SMII0_IRQ_MASK (1 << 19) |
| #define SPEAR320_WAKEUP_MII1_SMII1_IRQ_MASK (1 << 20) |
| #define SPEAR320_I2C1_IRQ_MASK (1 << 21) |
| |
| #define SPEAR320_SHIRQ_RAS1_MASK 0x000380 |
| #define SPEAR320_SHIRQ_RAS3_MASK 0x000007 |
| #define SPEAR320_SHIRQ_INTRCOMM_RAS_MASK 0x3FF800 |
| |
| /* SPEAr320 Virtual irq definitions */ |
| /* IRQs sharing IRQ_GEN_RAS_1 */ |
| #define SPEAR320_VIRQ_EMI (SPEAR3XX_VIRQ_START + 0) |
| #define SPEAR320_VIRQ_CLCD (SPEAR3XX_VIRQ_START + 1) |
| #define SPEAR320_VIRQ_SPP (SPEAR3XX_VIRQ_START + 2) |
| |
| /* IRQs sharing IRQ_GEN_RAS_2 */ |
| #define SPEAR320_IRQ_SDHCI SPEAR3XX_IRQ_GEN_RAS_2 |
| |
| /* IRQs sharing IRQ_GEN_RAS_3 */ |
| #define SPEAR320_VIRQ_PLGPIO (SPEAR3XX_VIRQ_START + 3) |
| #define SPEAR320_VIRQ_I2S_PLAY (SPEAR3XX_VIRQ_START + 4) |
| #define SPEAR320_VIRQ_I2S_REC (SPEAR3XX_VIRQ_START + 5) |
| |
| /* IRQs sharing IRQ_INTRCOMM_RAS_ARM */ |
| #define SPEAR320_VIRQ_CANU (SPEAR3XX_VIRQ_START + 6) |
| #define SPEAR320_VIRQ_CANL (SPEAR3XX_VIRQ_START + 7) |
| #define SPEAR320_VIRQ_UART1 (SPEAR3XX_VIRQ_START + 8) |
| #define SPEAR320_VIRQ_UART2 (SPEAR3XX_VIRQ_START + 9) |
| #define SPEAR320_VIRQ_SSP1 (SPEAR3XX_VIRQ_START + 10) |
| #define SPEAR320_VIRQ_SSP2 (SPEAR3XX_VIRQ_START + 11) |
| #define SPEAR320_VIRQ_SMII0 (SPEAR3XX_VIRQ_START + 12) |
| #define SPEAR320_VIRQ_MII1_SMII1 (SPEAR3XX_VIRQ_START + 13) |
| #define SPEAR320_VIRQ_WAKEUP_SMII0 (SPEAR3XX_VIRQ_START + 14) |
| #define SPEAR320_VIRQ_WAKEUP_MII1_SMII1 (SPEAR3XX_VIRQ_START + 15) |
| #define SPEAR320_VIRQ_I2C1 (SPEAR3XX_VIRQ_START + 16) |
| |
| /* spear3xx shared irq */ |
| static struct shirq_dev_config shirq_ras1_config[] = { |
| { |
| .virq = SPEAR320_VIRQ_EMI, |
| .status_mask = SPEAR320_EMI_IRQ_MASK, |
| .clear_mask = SPEAR320_EMI_IRQ_MASK, |
| }, { |
| .virq = SPEAR320_VIRQ_CLCD, |
| .status_mask = SPEAR320_CLCD_IRQ_MASK, |
| .clear_mask = SPEAR320_CLCD_IRQ_MASK, |
| }, { |
| .virq = SPEAR320_VIRQ_SPP, |
| .status_mask = SPEAR320_SPP_IRQ_MASK, |
| .clear_mask = SPEAR320_SPP_IRQ_MASK, |
| }, |
| }; |
| |
| static struct spear_shirq shirq_ras1 = { |
| .irq = SPEAR3XX_IRQ_GEN_RAS_1, |
| .dev_config = shirq_ras1_config, |
| .dev_count = ARRAY_SIZE(shirq_ras1_config), |
| .regs = { |
| .enb_reg = -1, |
| .status_reg = SPEAR320_INT_STS_MASK_REG, |
| .status_reg_mask = SPEAR320_SHIRQ_RAS1_MASK, |
| .clear_reg = SPEAR320_INT_CLR_MASK_REG, |
| .reset_to_clear = 1, |
| }, |
| }; |
| |
| static struct shirq_dev_config shirq_ras3_config[] = { |
| { |
| .virq = SPEAR320_VIRQ_PLGPIO, |
| .enb_mask = SPEAR320_GPIO_IRQ_MASK, |
| .status_mask = SPEAR320_GPIO_IRQ_MASK, |
| .clear_mask = SPEAR320_GPIO_IRQ_MASK, |
| }, { |
| .virq = SPEAR320_VIRQ_I2S_PLAY, |
| .enb_mask = SPEAR320_I2S_PLAY_IRQ_MASK, |
| .status_mask = SPEAR320_I2S_PLAY_IRQ_MASK, |
| .clear_mask = SPEAR320_I2S_PLAY_IRQ_MASK, |
| }, { |
| .virq = SPEAR320_VIRQ_I2S_REC, |
| .enb_mask = SPEAR320_I2S_REC_IRQ_MASK, |
| .status_mask = SPEAR320_I2S_REC_IRQ_MASK, |
| .clear_mask = SPEAR320_I2S_REC_IRQ_MASK, |
| }, |
| }; |
| |
| static struct spear_shirq shirq_ras3 = { |
| .irq = SPEAR3XX_IRQ_GEN_RAS_3, |
| .dev_config = shirq_ras3_config, |
| .dev_count = ARRAY_SIZE(shirq_ras3_config), |
| .regs = { |
| .enb_reg = SPEAR320_INT_ENB_MASK_REG, |
| .reset_to_enb = 1, |
| .status_reg = SPEAR320_INT_STS_MASK_REG, |
| .status_reg_mask = SPEAR320_SHIRQ_RAS3_MASK, |
| .clear_reg = SPEAR320_INT_CLR_MASK_REG, |
| .reset_to_clear = 1, |
| }, |
| }; |
| |
| static struct shirq_dev_config shirq_intrcomm_ras_config[] = { |
| { |
| .virq = SPEAR320_VIRQ_CANU, |
| .status_mask = SPEAR320_CAN_U_IRQ_MASK, |
| .clear_mask = SPEAR320_CAN_U_IRQ_MASK, |
| }, { |
| .virq = SPEAR320_VIRQ_CANL, |
| .status_mask = SPEAR320_CAN_L_IRQ_MASK, |
| .clear_mask = SPEAR320_CAN_L_IRQ_MASK, |
| }, { |
| .virq = SPEAR320_VIRQ_UART1, |
| .status_mask = SPEAR320_UART1_IRQ_MASK, |
| .clear_mask = SPEAR320_UART1_IRQ_MASK, |
| }, { |
| .virq = SPEAR320_VIRQ_UART2, |
| .status_mask = SPEAR320_UART2_IRQ_MASK, |
| .clear_mask = SPEAR320_UART2_IRQ_MASK, |
| }, { |
| .virq = SPEAR320_VIRQ_SSP1, |
| .status_mask = SPEAR320_SSP1_IRQ_MASK, |
| .clear_mask = SPEAR320_SSP1_IRQ_MASK, |
| }, { |
| .virq = SPEAR320_VIRQ_SSP2, |
| .status_mask = SPEAR320_SSP2_IRQ_MASK, |
| .clear_mask = SPEAR320_SSP2_IRQ_MASK, |
| }, { |
| .virq = SPEAR320_VIRQ_SMII0, |
| .status_mask = SPEAR320_SMII0_IRQ_MASK, |
| .clear_mask = SPEAR320_SMII0_IRQ_MASK, |
| }, { |
| .virq = SPEAR320_VIRQ_MII1_SMII1, |
| .status_mask = SPEAR320_MII1_SMII1_IRQ_MASK, |
| .clear_mask = SPEAR320_MII1_SMII1_IRQ_MASK, |
| }, { |
| .virq = SPEAR320_VIRQ_WAKEUP_SMII0, |
| .status_mask = SPEAR320_WAKEUP_SMII0_IRQ_MASK, |
| .clear_mask = SPEAR320_WAKEUP_SMII0_IRQ_MASK, |
| }, { |
| .virq = SPEAR320_VIRQ_WAKEUP_MII1_SMII1, |
| .status_mask = SPEAR320_WAKEUP_MII1_SMII1_IRQ_MASK, |
| .clear_mask = SPEAR320_WAKEUP_MII1_SMII1_IRQ_MASK, |
| }, { |
| .virq = SPEAR320_VIRQ_I2C1, |
| .status_mask = SPEAR320_I2C1_IRQ_MASK, |
| .clear_mask = SPEAR320_I2C1_IRQ_MASK, |
| }, |
| }; |
| |
| static struct spear_shirq shirq_intrcomm_ras = { |
| .irq = SPEAR3XX_IRQ_INTRCOMM_RAS_ARM, |
| .dev_config = shirq_intrcomm_ras_config, |
| .dev_count = ARRAY_SIZE(shirq_intrcomm_ras_config), |
| .regs = { |
| .enb_reg = -1, |
| .status_reg = SPEAR320_INT_STS_MASK_REG, |
| .status_reg_mask = SPEAR320_SHIRQ_INTRCOMM_RAS_MASK, |
| .clear_reg = SPEAR320_INT_CLR_MASK_REG, |
| .reset_to_clear = 1, |
| }, |
| }; |
| |
| /* DMAC platform data's slave info */ |
| struct pl08x_channel_data spear320_dma_info[] = { |
| { |
| .bus_id = "uart0_rx", |
| .min_signal = 2, |
| .max_signal = 2, |
| .muxval = 0, |
| .periph_buses = PL08X_AHB1, |
| }, { |
| .bus_id = "uart0_tx", |
| .min_signal = 3, |
| .max_signal = 3, |
| .muxval = 0, |
| .periph_buses = PL08X_AHB1, |
| }, { |
| .bus_id = "ssp0_rx", |
| .min_signal = 8, |
| .max_signal = 8, |
| .muxval = 0, |
| .periph_buses = PL08X_AHB1, |
| }, { |
| .bus_id = "ssp0_tx", |
| .min_signal = 9, |
| .max_signal = 9, |
| .muxval = 0, |
| .periph_buses = PL08X_AHB1, |
| }, { |
| .bus_id = "i2c0_rx", |
| .min_signal = 10, |
| .max_signal = 10, |
| .muxval = 0, |
| .periph_buses = PL08X_AHB1, |
| }, { |
| .bus_id = "i2c0_tx", |
| .min_signal = 11, |
| .max_signal = 11, |
| .muxval = 0, |
| .periph_buses = PL08X_AHB1, |
| }, { |
| .bus_id = "irda", |
| .min_signal = 12, |
| .max_signal = 12, |
| .muxval = 0, |
| .periph_buses = PL08X_AHB1, |
| }, { |
| .bus_id = "adc", |
| .min_signal = 13, |
| .max_signal = 13, |
| .muxval = 0, |
| .periph_buses = PL08X_AHB1, |
| }, { |
| .bus_id = "to_jpeg", |
| .min_signal = 14, |
| .max_signal = 14, |
| .muxval = 0, |
| .periph_buses = PL08X_AHB1, |
| }, { |
| .bus_id = "from_jpeg", |
| .min_signal = 15, |
| .max_signal = 15, |
| .muxval = 0, |
| .periph_buses = PL08X_AHB1, |
| }, { |
| .bus_id = "ssp1_rx", |
| .min_signal = 0, |
| .max_signal = 0, |
| .muxval = 1, |
| .periph_buses = PL08X_AHB2, |
| }, { |
| .bus_id = "ssp1_tx", |
| .min_signal = 1, |
| .max_signal = 1, |
| .muxval = 1, |
| .periph_buses = PL08X_AHB2, |
| }, { |
| .bus_id = "ssp2_rx", |
| .min_signal = 2, |
| .max_signal = 2, |
| .muxval = 1, |
| .periph_buses = PL08X_AHB2, |
| }, { |
| .bus_id = "ssp2_tx", |
| .min_signal = 3, |
| .max_signal = 3, |
| .muxval = 1, |
| .periph_buses = PL08X_AHB2, |
| }, { |
| .bus_id = "uart1_rx", |
| .min_signal = 4, |
| .max_signal = 4, |
| .muxval = 1, |
| .periph_buses = PL08X_AHB2, |
| }, { |
| .bus_id = "uart1_tx", |
| .min_signal = 5, |
| .max_signal = 5, |
| .muxval = 1, |
| .periph_buses = PL08X_AHB2, |
| }, { |
| .bus_id = "uart2_rx", |
| .min_signal = 6, |
| .max_signal = 6, |
| .muxval = 1, |
| .periph_buses = PL08X_AHB2, |
| }, { |
| .bus_id = "uart2_tx", |
| .min_signal = 7, |
| .max_signal = 7, |
| .muxval = 1, |
| .periph_buses = PL08X_AHB2, |
| }, { |
| .bus_id = "i2c1_rx", |
| .min_signal = 8, |
| .max_signal = 8, |
| .muxval = 1, |
| .periph_buses = PL08X_AHB2, |
| }, { |
| .bus_id = "i2c1_tx", |
| .min_signal = 9, |
| .max_signal = 9, |
| .muxval = 1, |
| .periph_buses = PL08X_AHB2, |
| }, { |
| .bus_id = "i2c2_rx", |
| .min_signal = 10, |
| .max_signal = 10, |
| .muxval = 1, |
| .periph_buses = PL08X_AHB2, |
| }, { |
| .bus_id = "i2c2_tx", |
| .min_signal = 11, |
| .max_signal = 11, |
| .muxval = 1, |
| .periph_buses = PL08X_AHB2, |
| }, { |
| .bus_id = "i2s_rx", |
| .min_signal = 12, |
| .max_signal = 12, |
| .muxval = 1, |
| .periph_buses = PL08X_AHB2, |
| }, { |
| .bus_id = "i2s_tx", |
| .min_signal = 13, |
| .max_signal = 13, |
| .muxval = 1, |
| .periph_buses = PL08X_AHB2, |
| }, { |
| .bus_id = "rs485_rx", |
| .min_signal = 14, |
| .max_signal = 14, |
| .muxval = 1, |
| .periph_buses = PL08X_AHB2, |
| }, { |
| .bus_id = "rs485_tx", |
| .min_signal = 15, |
| .max_signal = 15, |
| .muxval = 1, |
| .periph_buses = PL08X_AHB2, |
| }, |
| }; |
| |
| static struct pl022_ssp_controller spear320_ssp_data[] = { |
| { |
| .bus_id = 1, |
| .enable_dma = 1, |
| .dma_filter = pl08x_filter_id, |
| .dma_tx_param = "ssp1_tx", |
| .dma_rx_param = "ssp1_rx", |
| .num_chipselect = 2, |
| }, { |
| .bus_id = 2, |
| .enable_dma = 1, |
| .dma_filter = pl08x_filter_id, |
| .dma_tx_param = "ssp2_tx", |
| .dma_rx_param = "ssp2_rx", |
| .num_chipselect = 2, |
| } |
| }; |
| |
| static struct amba_pl011_data spear320_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", |
| }, |
| }; |
| |
| /* Add SPEAr310 auxdata to pass platform data */ |
| static struct of_dev_auxdata spear320_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,pl022", SPEAR320_SSP0_BASE, NULL, |
| &spear320_ssp_data[0]), |
| OF_DEV_AUXDATA("arm,pl022", SPEAR320_SSP1_BASE, NULL, |
| &spear320_ssp_data[1]), |
| OF_DEV_AUXDATA("arm,pl011", SPEAR320_UART1_BASE, NULL, |
| &spear320_uart_data[0]), |
| OF_DEV_AUXDATA("arm,pl011", SPEAR320_UART2_BASE, NULL, |
| &spear320_uart_data[1]), |
| {} |
| }; |
| |
| static void __init spear320_dt_init(void) |
| { |
| void __iomem *base; |
| int ret; |
| |
| pl080_plat_data.slave_channels = spear320_dma_info; |
| pl080_plat_data.num_slave_channels = ARRAY_SIZE(spear320_dma_info); |
| |
| of_platform_populate(NULL, of_default_bus_match_table, |
| spear320_auxdata_lookup, NULL); |
| |
| /* shared irq registration */ |
| base = ioremap(SPEAR320_SOC_CONFIG_BASE, SZ_4K); |
| if (base) { |
| /* shirq 1 */ |
| shirq_ras1.regs.base = base; |
| ret = spear_shirq_register(&shirq_ras1); |
| if (ret) |
| pr_err("Error registering Shared IRQ 1\n"); |
| |
| /* shirq 3 */ |
| shirq_ras3.regs.base = base; |
| ret = spear_shirq_register(&shirq_ras3); |
| if (ret) |
| 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) |
| pr_err("Error registering Shared IRQ 4\n"); |
| } |
| } |
| |
| static const char * const spear320_dt_board_compat[] = { |
| "st,spear320", |
| "st,spear320-evb", |
| NULL, |
| }; |
| |
| struct map_desc spear320_io_desc[] __initdata = { |
| { |
| .virtual = VA_SPEAR320_SOC_CONFIG_BASE, |
| .pfn = __phys_to_pfn(SPEAR320_SOC_CONFIG_BASE), |
| .length = SZ_16M, |
| .type = MT_DEVICE |
| }, |
| }; |
| |
| static void __init spear320_map_io(void) |
| { |
| iotable_init(spear320_io_desc, ARRAY_SIZE(spear320_io_desc)); |
| spear3xx_map_io(); |
| } |
| |
| DT_MACHINE_START(SPEAR320_DT, "ST SPEAr320 SoC with Flattened Device Tree") |
| .map_io = spear320_map_io, |
| .init_irq = spear3xx_dt_init_irq, |
| .handle_irq = vic_handle_irq, |
| .timer = &spear3xx_timer, |
| .init_machine = spear320_dt_init, |
| .restart = spear_restart, |
| .dt_compat = spear320_dt_board_compat, |
| MACHINE_END |
