/* * TI DaVinci DM355 chip specific setup * * Author: Kevin Hilman, Deep Root Systems, LLC * * 2007 (c) Deep Root Systems, LLC. 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "clock.h" #include "mux.h" /* * Device specific clocks */ #define DM355_REF_FREQ 24000000 /* 24 or 36 MHz */ static struct pll_data pll1_data = { .num = 1, .phys_base = DAVINCI_PLL1_BASE, .flags = PLL_HAS_PREDIV | PLL_HAS_POSTDIV, }; static struct pll_data pll2_data = { .num = 2, .phys_base = DAVINCI_PLL2_BASE, .flags = PLL_HAS_PREDIV, }; static struct clk ref_clk = { .name = "ref_clk", /* FIXME -- crystal rate is board-specific */ .rate = DM355_REF_FREQ, }; static struct clk pll1_clk = { .name = "pll1", .parent = &ref_clk, .flags = CLK_PLL, .pll_data = &pll1_data, }; static struct clk pll1_aux_clk = { .name = "pll1_aux_clk", .parent = &pll1_clk, .flags = CLK_PLL | PRE_PLL, }; static struct clk pll1_sysclk1 = { .name = "pll1_sysclk1", .parent = &pll1_clk, .flags = CLK_PLL, .div_reg = PLLDIV1, }; static struct clk pll1_sysclk2 = { .name = "pll1_sysclk2", .parent = &pll1_clk, .flags = CLK_PLL, .div_reg = PLLDIV2, }; static struct clk pll1_sysclk3 = { .name = "pll1_sysclk3", .parent = &pll1_clk, .flags = CLK_PLL, .div_reg = PLLDIV3, }; static struct clk pll1_sysclk4 = { .name = "pll1_sysclk4", .parent = &pll1_clk, .flags = CLK_PLL, .div_reg = PLLDIV4, }; static struct clk pll1_sysclkbp = { .name = "pll1_sysclkbp", .parent = &pll1_clk, .flags = CLK_PLL | PRE_PLL, .div_reg = BPDIV }; static struct clk vpss_dac_clk = { .name = "vpss_dac", .parent = &pll1_sysclk3, .lpsc = DM355_LPSC_VPSS_DAC, }; static struct clk vpss_master_clk = { .name = "vpss_master", .parent = &pll1_sysclk4, .lpsc = DAVINCI_LPSC_VPSSMSTR, .flags = CLK_PSC, }; static struct clk vpss_slave_clk = { .name = "vpss_slave", .parent = &pll1_sysclk4, .lpsc = DAVINCI_LPSC_VPSSSLV, }; static struct clk clkout1_clk = { .name = "clkout1", .parent = &pll1_aux_clk, /* NOTE: clkout1 can be externally gated by muxing GPIO-18 */ }; static struct clk clkout2_clk = { .name = "clkout2", .parent = &pll1_sysclkbp, }; static struct clk pll2_clk = { .name = "pll2", .parent = &ref_clk, .flags = CLK_PLL, .pll_data = &pll2_data, }; static struct clk pll2_sysclk1 = { .name = "pll2_sysclk1", .parent = &pll2_clk, .flags = CLK_PLL, .div_reg = PLLDIV1, }; static struct clk pll2_sysclkbp = { .name = "pll2_sysclkbp", .parent = &pll2_clk, .flags = CLK_PLL | PRE_PLL, .div_reg = BPDIV }; static struct clk clkout3_clk = { .name = "clkout3", .parent = &pll2_sysclkbp, /* NOTE: clkout3 can be externally gated by muxing GPIO-16 */ }; static struct clk arm_clk = { .name = "arm_clk", .parent = &pll1_sysclk1, .lpsc = DAVINCI_LPSC_ARM, .flags = ALWAYS_ENABLED, }; /* * NOT LISTED below, and not touched by Linux * - in SyncReset state by default * .lpsc = DAVINCI_LPSC_TPCC, * .lpsc = DAVINCI_LPSC_TPTC0, * .lpsc = DAVINCI_LPSC_TPTC1, * .lpsc = DAVINCI_LPSC_DDR_EMIF, .parent = &sysclk2_clk, * .lpsc = DAVINCI_LPSC_MEMSTICK, * - in Enabled state by default * .lpsc = DAVINCI_LPSC_SYSTEM_SUBSYS, * .lpsc = DAVINCI_LPSC_SCR2, // "bus" * .lpsc = DAVINCI_LPSC_SCR3, // "bus" * .lpsc = DAVINCI_LPSC_SCR4, // "bus" * .lpsc = DAVINCI_LPSC_CROSSBAR, // "emulation" * .lpsc = DAVINCI_LPSC_CFG27, // "test" * .lpsc = DAVINCI_LPSC_CFG3, // "test" * .lpsc = DAVINCI_LPSC_CFG5, // "test" */ static struct clk mjcp_clk = { .name = "mjcp", .parent = &pll1_sysclk1, .lpsc = DAVINCI_LPSC_IMCOP, }; static struct clk uart0_clk = { .name = "uart0", .parent = &pll1_aux_clk, .lpsc = DAVINCI_LPSC_UART0, }; static struct clk uart1_clk = { .name = "uart1", .parent = &pll1_aux_clk, .lpsc = DAVINCI_LPSC_UART1, }; static struct clk uart2_clk = { .name = "uart2", .parent = &pll1_sysclk2, .lpsc = DAVINCI_LPSC_UART2, }; static struct clk i2c_clk = { .name = "i2c", .parent = &pll1_aux_clk, .lpsc = DAVINCI_LPSC_I2C, }; static struct clk asp0_clk = { .name = "asp0", .parent = &pll1_sysclk2, .lpsc = DAVINCI_LPSC_McBSP, }; static struct clk asp1_clk = { .name = "asp1", .parent = &pll1_sysclk2, .lpsc = DM355_LPSC_McBSP1, }; static struct clk mmcsd0_clk = { .name = "mmcsd0", .parent = &pll1_sysclk2, .lpsc = DAVINCI_LPSC_MMC_SD, }; static struct clk mmcsd1_clk = { .name = "mmcsd1", .parent = &pll1_sysclk2, .lpsc = DM355_LPSC_MMC_SD1, }; static struct clk spi0_clk = { .name = "spi0", .parent = &pll1_sysclk2, .lpsc = DAVINCI_LPSC_SPI, }; static struct clk spi1_clk = { .name = "spi1", .parent = &pll1_sysclk2, .lpsc = DM355_LPSC_SPI1, }; static struct clk spi2_clk = { .name = "spi2", .parent = &pll1_sysclk2, .lpsc = DM355_LPSC_SPI2, }; static struct clk gpio_clk = { .name = "gpio", .parent = &pll1_sysclk2, .lpsc = DAVINCI_LPSC_GPIO, }; static struct clk aemif_clk = { .name = "aemif", .parent = &pll1_sysclk2, .lpsc = DAVINCI_LPSC_AEMIF, }; static struct clk pwm0_clk = { .name = "pwm0", .parent = &pll1_aux_clk, .lpsc = DAVINCI_LPSC_PWM0, }; static struct clk pwm1_clk = { .name = "pwm1", .parent = &pll1_aux_clk, .lpsc = DAVINCI_LPSC_PWM1, }; static struct clk pwm2_clk = { .name = "pwm2", .parent = &pll1_aux_clk, .lpsc = DAVINCI_LPSC_PWM2, }; static struct clk pwm3_clk = { .name = "pwm3", .parent = &pll1_aux_clk, .lpsc = DM355_LPSC_PWM3, }; static struct clk timer0_clk = { .name = "timer0", .parent = &pll1_aux_clk, .lpsc = DAVINCI_LPSC_TIMER0, }; static struct clk timer1_clk = { .name = "timer1", .parent = &pll1_aux_clk, .lpsc = DAVINCI_LPSC_TIMER1, }; static struct clk timer2_clk = { .name = "timer2", .parent = &pll1_aux_clk, .lpsc = DAVINCI_LPSC_TIMER2, .usecount = 1, /* REVISIT: why cant' this be disabled? */ }; static struct clk timer3_clk = { .name = "timer3", .parent = &pll1_aux_clk, .lpsc = DM355_LPSC_TIMER3, }; static struct clk rto_clk = { .name = "rto", .parent = &pll1_aux_clk, .lpsc = DM355_LPSC_RTO, }; static struct clk usb_clk = { .name = "usb", .parent = &pll1_sysclk2, .lpsc = DAVINCI_LPSC_USB, }; static struct davinci_clk dm355_clks[] = { CLK(NULL, "ref", &ref_clk), CLK(NULL, "pll1", &pll1_clk), CLK(NULL, "pll1_sysclk1", &pll1_sysclk1), CLK(NULL, "pll1_sysclk2", &pll1_sysclk2), CLK(NULL, "pll1_sysclk3", &pll1_sysclk3), CLK(NULL, "pll1_sysclk4", &pll1_sysclk4), CLK(NULL, "pll1_aux", &pll1_aux_clk), CLK(NULL, "pll1_sysclkbp", &pll1_sysclkbp), CLK(NULL, "vpss_dac", &vpss_dac_clk), CLK(NULL, "vpss_master", &vpss_master_clk), CLK(NULL, "vpss_slave", &vpss_slave_clk), CLK(NULL, "clkout1", &clkout1_clk), CLK(NULL, "clkout2", &clkout2_clk), CLK(NULL, "pll2", &pll2_clk), CLK(NULL, "pll2_sysclk1", &pll2_sysclk1), CLK(NULL, "pll2_sysclkbp", &pll2_sysclkbp), CLK(NULL, "clkout3", &clkout3_clk), CLK(NULL, "arm", &arm_clk), CLK(NULL, "mjcp", &mjcp_clk), CLK(NULL, "uart0", &uart0_clk), CLK(NULL, "uart1", &uart1_clk), CLK(NULL, "uart2", &uart2_clk), CLK("i2c_davinci.1", NULL, &i2c_clk), CLK("soc-audio.0", NULL, &asp0_clk), CLK("soc-audio.1", NULL, &asp1_clk), CLK("davinci_mmc.0", NULL, &mmcsd0_clk), CLK("davinci_mmc.1", NULL, &mmcsd1_clk), CLK(NULL, "spi0", &spi0_clk), CLK(NULL, "spi1", &spi1_clk), CLK(NULL, "spi2", &spi2_clk), CLK(NULL, "gpio", &gpio_clk), CLK(NULL, "aemif", &aemif_clk), CLK(NULL, "pwm0", &pwm0_clk), CLK(NULL, "pwm1", &pwm1_clk), CLK(NULL, "pwm2", &pwm2_clk), CLK(NULL, "pwm3", &pwm3_clk), CLK(NULL, "timer0", &timer0_clk), CLK(NULL, "timer1", &timer1_clk), CLK("watchdog", NULL, &timer2_clk), CLK(NULL, "timer3", &timer3_clk), CLK(NULL, "rto", &rto_clk), CLK(NULL, "usb", &usb_clk), CLK(NULL, NULL, NULL), }; /*----------------------------------------------------------------------*/ static u64 dm355_spi0_dma_mask = DMA_BIT_MASK(32); static struct resource dm355_spi0_resources[] = { { .start = 0x01c66000, .end = 0x01c667ff, .flags = IORESOURCE_MEM, }, { .start = IRQ_DM355_SPINT0_1, .flags = IORESOURCE_IRQ, }, /* Not yet used, so not included: * IORESOURCE_IRQ: * - IRQ_DM355_SPINT0_0 * IORESOURCE_DMA: * - DAVINCI_DMA_SPI_SPIX * - DAVINCI_DMA_SPI_SPIR */ }; static struct platform_device dm355_spi0_device = { .name = "spi_davinci", .id = 0, .dev = { .dma_mask = &dm355_spi0_dma_mask, .coherent_dma_mask = DMA_BIT_MASK(32), }, .num_resources = ARRAY_SIZE(dm355_spi0_resources), .resource = dm355_spi0_resources, }; void __init dm355_init_spi0(unsigned chipselect_mask, struct spi_board_info *info, unsigned len) { /* for now, assume we need MISO */ davinci_cfg_reg(DM355_SPI0_SDI); /* not all slaves will be wired up */ if (chipselect_mask & BIT(0)) davinci_cfg_reg(DM355_SPI0_SDENA0); if (chipselect_mask & BIT(1)) davinci_cfg_reg(DM355_SPI0_SDENA1); spi_register_board_info(info, len); platform_device_register(&dm355_spi0_device); } /*----------------------------------------------------------------------*/ /* * Device specific mux setup * * soc description mux mode mode mux dbg * reg offset mask mode */ static const struct mux_config dm355_pins[] = { #ifdef CONFIG_DAVINCI_MUX MUX_CFG(DM355, MMCSD0, 4, 2, 1, 0, false) MUX_CFG(DM355, SD1_CLK, 3, 6, 1, 1, false) MUX_CFG(DM355, SD1_CMD, 3, 7, 1, 1, false) MUX_CFG(DM355, SD1_DATA3, 3, 8, 3, 1, false) MUX_CFG(DM355, SD1_DATA2, 3, 10, 3, 1, false) MUX_CFG(DM355, SD1_DATA1, 3, 12, 3, 1, false) MUX_CFG(DM355, SD1_DATA0, 3, 14, 3, 1, false) MUX_CFG(DM355, I2C_SDA, 3, 19, 1, 1, false) MUX_CFG(DM355, I2C_SCL, 3, 20, 1, 1, false) MUX_CFG(DM355, MCBSP0_BDX, 3, 0, 1, 1, false) MUX_CFG(DM355, MCBSP0_X, 3, 1, 1, 1, false) MUX_CFG(DM355, MCBSP0_BFSX, 3, 2, 1, 1, false) MUX_CFG(DM355, MCBSP0_BDR, 3, 3, 1, 1, false) MUX_CFG(DM355, MCBSP0_R, 3, 4, 1, 1, false) MUX_CFG(DM355, MCBSP0_BFSR, 3, 5, 1, 1, false) MUX_CFG(DM355, SPI0_SDI, 4, 1, 1, 0, false) MUX_CFG(DM355, SPI0_SDENA0, 4, 0, 1, 0, false) MUX_CFG(DM355, SPI0_SDENA1, 3, 28, 1, 1, false) INT_CFG(DM355, INT_EDMA_CC, 2, 1, 1, false) INT_CFG(DM355, INT_EDMA_TC0_ERR, 3, 1, 1, false) INT_CFG(DM355, INT_EDMA_TC1_ERR, 4, 1, 1, false) EVT_CFG(DM355, EVT8_ASP1_TX, 0, 1, 0, false) EVT_CFG(DM355, EVT9_ASP1_RX, 1, 1, 0, false) EVT_CFG(DM355, EVT26_MMC0_RX, 2, 1, 0, false) #endif }; static u8 dm355_default_priorities[DAVINCI_N_AINTC_IRQ] = { [IRQ_DM355_CCDC_VDINT0] = 2, [IRQ_DM355_CCDC_VDINT1] = 6, [IRQ_DM355_CCDC_VDINT2] = 6, [IRQ_DM355_IPIPE_HST] = 6, [IRQ_DM355_H3AINT] = 6, [IRQ_DM355_IPIPE_SDR] = 6, [IRQ_DM355_IPIPEIFINT] = 6, [IRQ_DM355_OSDINT] = 7, [IRQ_DM355_VENCINT] = 6, [IRQ_ASQINT] = 6, [IRQ_IMXINT] = 6, [IRQ_USBINT] = 4, [IRQ_DM355_RTOINT] = 4, [IRQ_DM355_UARTINT2] = 7, [IRQ_DM355_TINT6] = 7, [IRQ_CCINT0] = 5, /* dma */ [IRQ_CCERRINT] = 5, /* dma */ [IRQ_TCERRINT0] = 5, /* dma */ [IRQ_TCERRINT] = 5, /* dma */ [IRQ_DM355_SPINT2_1] = 7, [IRQ_DM355_TINT7] = 4, [IRQ_DM355_SDIOINT0] = 7, [IRQ_MBXINT] = 7, [IRQ_MBRINT] = 7, [IRQ_MMCINT] = 7, [IRQ_DM355_MMCINT1] = 7, [IRQ_DM355_PWMINT3] = 7, [IRQ_DDRINT] = 7, [IRQ_AEMIFINT] = 7, [IRQ_DM355_SDIOINT1] = 4, [IRQ_TINT0_TINT12] = 2, /* clockevent */ [IRQ_TINT0_TINT34] = 2, /* clocksource */ [IRQ_TINT1_TINT12] = 7, /* DSP timer */ [IRQ_TINT1_TINT34] = 7, /* system tick */ [IRQ_PWMINT0] = 7, [IRQ_PWMINT1] = 7, [IRQ_PWMINT2] = 7, [IRQ_I2C] = 3, [IRQ_UARTINT0] = 3, [IRQ_UARTINT1] = 3, [IRQ_DM355_SPINT0_0] = 3, [IRQ_DM355_SPINT0_1] = 3, [IRQ_DM355_GPIO0] = 3, [IRQ_DM355_GPIO1] = 7, [IRQ_DM355_GPIO2] = 4, [IRQ_DM355_GPIO3] = 4, [IRQ_DM355_GPIO4] = 7, [IRQ_DM355_GPIO5] = 7, [IRQ_DM355_GPIO6] = 7, [IRQ_DM355_GPIO7] = 7, [IRQ_DM355_GPIO8] = 7, [IRQ_DM355_GPIO9] = 7, [IRQ_DM355_GPIOBNK0] = 7, [IRQ_DM355_GPIOBNK1] = 7, [IRQ_DM355_GPIOBNK2] = 7, [IRQ_DM355_GPIOBNK3] = 7, [IRQ_DM355_GPIOBNK4] = 7, [IRQ_DM355_GPIOBNK5] = 7, [IRQ_DM355_GPIOBNK6] = 7, [IRQ_COMMTX] = 7, [IRQ_COMMRX] = 7, [IRQ_EMUINT] = 7, }; /*----------------------------------------------------------------------*/ static const s8 dma_chan_dm355_no_event[] = { 12, 13, 24, 56, 57, 58, 59, 60, 61, 62, 63, -1 }; static struct edma_soc_info dm355_edma_info = { .n_channel = 64, .n_region = 4, .n_slot = 128, .n_tc = 2, .noevent = dma_chan_dm355_no_event, }; static struct resource edma_resources[] = { { .name = "edma_cc", .start = 0x01c00000, .end = 0x01c00000 + SZ_64K - 1, .flags = IORESOURCE_MEM, }, { .name = "edma_tc0", .start = 0x01c10000, .end = 0x01c10000 + SZ_1K - 1, .flags = IORESOURCE_MEM, }, { .name = "edma_tc1", .start = 0x01c10400, .end = 0x01c10400 + SZ_1K - 1, .flags = IORESOURCE_MEM, }, { .start = IRQ_CCINT0, .flags = IORESOURCE_IRQ, }, { .start = IRQ_CCERRINT, .flags = IORESOURCE_IRQ, }, /* not using (or muxing) TC*_ERR */ }; static struct platform_device dm355_edma_device = { .name = "edma", .id = -1, .dev.platform_data = &dm355_edma_info, .num_resources = ARRAY_SIZE(edma_resources), .resource = edma_resources, }; /*----------------------------------------------------------------------*/ static struct map_desc dm355_io_desc[] = { { .virtual = IO_VIRT, .pfn = __phys_to_pfn(IO_PHYS), .length = IO_SIZE, .type = MT_DEVICE }, }; /* Contents of JTAG ID register used to identify exact cpu type */ static struct davinci_id dm355_ids[] = { { .variant = 0x0, .part_no = 0xb73b, .manufacturer = 0x00f, .cpu_id = DAVINCI_CPU_ID_DM355, .name = "dm355", }, }; static void __iomem *dm355_psc_bases[] = { IO_ADDRESS(DAVINCI_PWR_SLEEP_CNTRL_BASE), }; /* * T0_BOT: Timer 0, bottom: clockevent source for hrtimers * T0_TOP: Timer 0, top : clocksource for generic timekeeping * T1_BOT: Timer 1, bottom: (used by DSP in TI DSPLink code) * T1_TOP: Timer 1, top : */ struct davinci_timer_info dm355_timer_info = { .timers = davinci_timer_instance, .clockevent_id = T0_BOT, .clocksource_id = T0_TOP, }; static struct davinci_soc_info davinci_soc_info_dm355 = { .io_desc = dm355_io_desc, .io_desc_num = ARRAY_SIZE(dm355_io_desc), .jtag_id_base = IO_ADDRESS(0x01c40028), .ids = dm355_ids, .ids_num = ARRAY_SIZE(dm355_ids), .cpu_clks = dm355_clks, .psc_bases = dm355_psc_bases, .psc_bases_num = ARRAY_SIZE(dm355_psc_bases), .pinmux_base = IO_ADDRESS(DAVINCI_SYSTEM_MODULE_BASE), .pinmux_pins = dm355_pins, .pinmux_pins_num = ARRAY_SIZE(dm355_pins), .intc_base = IO_ADDRESS(DAVINCI_ARM_INTC_BASE), .intc_type = DAVINCI_INTC_TYPE_AINTC, .intc_irq_prios = dm355_default_priorities, .intc_irq_num = DAVINCI_N_AINTC_IRQ, .timer_info = &dm355_timer_info, .wdt_base = IO_ADDRESS(DAVINCI_WDOG_BASE), }; void __init dm355_init(void) { davinci_common_init(&davinci_soc_info_dm355); } static int __init dm355_init_devices(void) { if (!cpu_is_davinci_dm355()) return 0; davinci_cfg_reg(DM355_INT_EDMA_CC); platform_device_register(&dm355_edma_device); return 0; } postcore_initcall(dm355_init_devices);