| /* |
| * arch/arm/mach-spear3xx/spear300.c |
| * |
| * SPEAr300 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) "SPEAr300: " fmt |
| |
| #include <linux/amba/pl08x.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> |
| |
| /* Base address of various IPs */ |
| #define SPEAR300_TELECOM_BASE UL(0x50000000) |
| |
| /* Interrupt registers offsets and masks */ |
| #define SPEAR300_INT_ENB_MASK_REG 0x54 |
| #define SPEAR300_INT_STS_MASK_REG 0x58 |
| #define SPEAR300_IT_PERS_S_IRQ_MASK (1 << 0) |
| #define SPEAR300_IT_CHANGE_S_IRQ_MASK (1 << 1) |
| #define SPEAR300_I2S_IRQ_MASK (1 << 2) |
| #define SPEAR300_TDM_IRQ_MASK (1 << 3) |
| #define SPEAR300_CAMERA_L_IRQ_MASK (1 << 4) |
| #define SPEAR300_CAMERA_F_IRQ_MASK (1 << 5) |
| #define SPEAR300_CAMERA_V_IRQ_MASK (1 << 6) |
| #define SPEAR300_KEYBOARD_IRQ_MASK (1 << 7) |
| #define SPEAR300_GPIO1_IRQ_MASK (1 << 8) |
| |
| #define SPEAR300_SHIRQ_RAS1_MASK 0x1FF |
| |
| #define SPEAR300_SOC_CONFIG_BASE UL(0x99000000) |
| |
| |
| /* SPEAr300 Virtual irq definitions */ |
| /* IRQs sharing IRQ_GEN_RAS_1 */ |
| #define SPEAR300_VIRQ_IT_PERS_S (SPEAR3XX_VIRQ_START + 0) |
| #define SPEAR300_VIRQ_IT_CHANGE_S (SPEAR3XX_VIRQ_START + 1) |
| #define SPEAR300_VIRQ_I2S (SPEAR3XX_VIRQ_START + 2) |
| #define SPEAR300_VIRQ_TDM (SPEAR3XX_VIRQ_START + 3) |
| #define SPEAR300_VIRQ_CAMERA_L (SPEAR3XX_VIRQ_START + 4) |
| #define SPEAR300_VIRQ_CAMERA_F (SPEAR3XX_VIRQ_START + 5) |
| #define SPEAR300_VIRQ_CAMERA_V (SPEAR3XX_VIRQ_START + 6) |
| #define SPEAR300_VIRQ_KEYBOARD (SPEAR3XX_VIRQ_START + 7) |
| #define SPEAR300_VIRQ_GPIO1 (SPEAR3XX_VIRQ_START + 8) |
| |
| /* IRQs sharing IRQ_GEN_RAS_3 */ |
| #define SPEAR300_IRQ_CLCD SPEAR3XX_IRQ_GEN_RAS_3 |
| |
| /* IRQs sharing IRQ_INTRCOMM_RAS_ARM */ |
| #define SPEAR300_IRQ_SDHCI SPEAR3XX_IRQ_INTRCOMM_RAS_ARM |
| |
| /* spear3xx shared irq */ |
| static struct shirq_dev_config shirq_ras1_config[] = { |
| { |
| .virq = SPEAR300_VIRQ_IT_PERS_S, |
| .enb_mask = SPEAR300_IT_PERS_S_IRQ_MASK, |
| .status_mask = SPEAR300_IT_PERS_S_IRQ_MASK, |
| }, { |
| .virq = SPEAR300_VIRQ_IT_CHANGE_S, |
| .enb_mask = SPEAR300_IT_CHANGE_S_IRQ_MASK, |
| .status_mask = SPEAR300_IT_CHANGE_S_IRQ_MASK, |
| }, { |
| .virq = SPEAR300_VIRQ_I2S, |
| .enb_mask = SPEAR300_I2S_IRQ_MASK, |
| .status_mask = SPEAR300_I2S_IRQ_MASK, |
| }, { |
| .virq = SPEAR300_VIRQ_TDM, |
| .enb_mask = SPEAR300_TDM_IRQ_MASK, |
| .status_mask = SPEAR300_TDM_IRQ_MASK, |
| }, { |
| .virq = SPEAR300_VIRQ_CAMERA_L, |
| .enb_mask = SPEAR300_CAMERA_L_IRQ_MASK, |
| .status_mask = SPEAR300_CAMERA_L_IRQ_MASK, |
| }, { |
| .virq = SPEAR300_VIRQ_CAMERA_F, |
| .enb_mask = SPEAR300_CAMERA_F_IRQ_MASK, |
| .status_mask = SPEAR300_CAMERA_F_IRQ_MASK, |
| }, { |
| .virq = SPEAR300_VIRQ_CAMERA_V, |
| .enb_mask = SPEAR300_CAMERA_V_IRQ_MASK, |
| .status_mask = SPEAR300_CAMERA_V_IRQ_MASK, |
| }, { |
| .virq = SPEAR300_VIRQ_KEYBOARD, |
| .enb_mask = SPEAR300_KEYBOARD_IRQ_MASK, |
| .status_mask = SPEAR300_KEYBOARD_IRQ_MASK, |
| }, { |
| .virq = SPEAR300_VIRQ_GPIO1, |
| .enb_mask = SPEAR300_GPIO1_IRQ_MASK, |
| .status_mask = SPEAR300_GPIO1_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 = SPEAR300_INT_ENB_MASK_REG, |
| .status_reg = SPEAR300_INT_STS_MASK_REG, |
| .status_reg_mask = SPEAR300_SHIRQ_RAS1_MASK, |
| .clear_reg = -1, |
| }, |
| }; |
| |
| /* DMAC platform data's slave info */ |
| struct pl08x_channel_data spear300_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 = "ras0_rx", |
| .min_signal = 0, |
| .max_signal = 0, |
| .muxval = 1, |
| .cctl = 0, |
| .periph_buses = PL08X_AHB1, |
| }, { |
| .bus_id = "ras0_tx", |
| .min_signal = 1, |
| .max_signal = 1, |
| .muxval = 1, |
| .cctl = 0, |
| .periph_buses = PL08X_AHB1, |
| }, { |
| .bus_id = "ras1_rx", |
| .min_signal = 2, |
| .max_signal = 2, |
| .muxval = 1, |
| .cctl = 0, |
| .periph_buses = PL08X_AHB1, |
| }, { |
| .bus_id = "ras1_tx", |
| .min_signal = 3, |
| .max_signal = 3, |
| .muxval = 1, |
| .cctl = 0, |
| .periph_buses = PL08X_AHB1, |
| }, { |
| .bus_id = "ras2_rx", |
| .min_signal = 4, |
| .max_signal = 4, |
| .muxval = 1, |
| .cctl = 0, |
| .periph_buses = PL08X_AHB1, |
| }, { |
| .bus_id = "ras2_tx", |
| .min_signal = 5, |
| .max_signal = 5, |
| .muxval = 1, |
| .cctl = 0, |
| .periph_buses = PL08X_AHB1, |
| }, { |
| .bus_id = "ras3_rx", |
| .min_signal = 6, |
| .max_signal = 6, |
| .muxval = 1, |
| .cctl = 0, |
| .periph_buses = PL08X_AHB1, |
| }, { |
| .bus_id = "ras3_tx", |
| .min_signal = 7, |
| .max_signal = 7, |
| .muxval = 1, |
| .cctl = 0, |
| .periph_buses = PL08X_AHB1, |
| }, { |
| .bus_id = "ras4_rx", |
| .min_signal = 8, |
| .max_signal = 8, |
| .muxval = 1, |
| .cctl = 0, |
| .periph_buses = PL08X_AHB1, |
| }, { |
| .bus_id = "ras4_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, |
| }, |
| }; |
| |
| /* Add SPEAr300 auxdata to pass platform data */ |
| static struct of_dev_auxdata spear300_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), |
| {} |
| }; |
| |
| static void __init spear300_dt_init(void) |
| { |
| int ret; |
| |
| pl080_plat_data.slave_channels = spear300_dma_info; |
| pl080_plat_data.num_slave_channels = ARRAY_SIZE(spear300_dma_info); |
| |
| of_platform_populate(NULL, of_default_bus_match_table, |
| spear300_auxdata_lookup, NULL); |
| |
| /* shared irq registration */ |
| shirq_ras1.regs.base = ioremap(SPEAR300_TELECOM_BASE, SZ_4K); |
| if (shirq_ras1.regs.base) { |
| ret = spear_shirq_register(&shirq_ras1); |
| if (ret) |
| pr_err("Error registering Shared IRQ\n"); |
| } |
| } |
| |
| static const char * const spear300_dt_board_compat[] = { |
| "st,spear300", |
| "st,spear300-evb", |
| NULL, |
| }; |
| |
| static void __init spear300_map_io(void) |
| { |
| spear3xx_map_io(); |
| } |
| |
| DT_MACHINE_START(SPEAR300_DT, "ST SPEAr300 SoC with Flattened Device Tree") |
| .map_io = spear300_map_io, |
| .init_irq = spear3xx_dt_init_irq, |
| .handle_irq = vic_handle_irq, |
| .timer = &spear3xx_timer, |
| .init_machine = spear300_dt_init, |
| .restart = spear_restart, |
| .dt_compat = spear300_dt_board_compat, |
| MACHINE_END |
