2 * TI DaVinci DM644x chip specific setup
4 * Author: Kevin Hilman, Deep Root Systems, LLC
6 * 2007 (c) Deep Root Systems, LLC. This file is licensed under
7 * the terms of the GNU General Public License version 2. This program
8 * is licensed "as is" without any warranty of any kind, whether express
11 #include <linux/kernel.h>
12 #include <linux/init.h>
13 #include <linux/clk.h>
14 #include <linux/serial_8250.h>
15 #include <linux/platform_device.h>
16 #include <linux/gpio.h>
18 #include <asm/mach/map.h>
20 #include <mach/dm644x.h>
21 #include <mach/clock.h>
22 #include <mach/cputype.h>
23 #include <mach/edma.h>
24 #include <mach/irqs.h>
27 #include <mach/time.h>
28 #include <mach/serial.h>
29 #include <mach/common.h>
35 * Device specific clocks
37 #define DM644X_REF_FREQ 27000000
39 static struct pll_data pll1_data
= {
41 .phys_base
= DAVINCI_PLL1_BASE
,
44 static struct pll_data pll2_data
= {
46 .phys_base
= DAVINCI_PLL2_BASE
,
49 static struct clk ref_clk
= {
51 .rate
= DM644X_REF_FREQ
,
54 static struct clk pll1_clk
= {
57 .pll_data
= &pll1_data
,
61 static struct clk pll1_sysclk1
= {
62 .name
= "pll1_sysclk1",
68 static struct clk pll1_sysclk2
= {
69 .name
= "pll1_sysclk2",
75 static struct clk pll1_sysclk3
= {
76 .name
= "pll1_sysclk3",
82 static struct clk pll1_sysclk5
= {
83 .name
= "pll1_sysclk5",
89 static struct clk pll1_aux_clk
= {
90 .name
= "pll1_aux_clk",
92 .flags
= CLK_PLL
| PRE_PLL
,
95 static struct clk pll1_sysclkbp
= {
96 .name
= "pll1_sysclkbp",
98 .flags
= CLK_PLL
| PRE_PLL
,
102 static struct clk pll2_clk
= {
105 .pll_data
= &pll2_data
,
109 static struct clk pll2_sysclk1
= {
110 .name
= "pll2_sysclk1",
116 static struct clk pll2_sysclk2
= {
117 .name
= "pll2_sysclk2",
123 static struct clk pll2_sysclkbp
= {
124 .name
= "pll2_sysclkbp",
126 .flags
= CLK_PLL
| PRE_PLL
,
130 static struct clk dsp_clk
= {
132 .parent
= &pll1_sysclk1
,
133 .lpsc
= DAVINCI_LPSC_GEM
,
135 .usecount
= 1, /* REVISIT how to disable? */
138 static struct clk arm_clk
= {
140 .parent
= &pll1_sysclk2
,
141 .lpsc
= DAVINCI_LPSC_ARM
,
142 .flags
= ALWAYS_ENABLED
,
145 static struct clk vicp_clk
= {
147 .parent
= &pll1_sysclk2
,
148 .lpsc
= DAVINCI_LPSC_IMCOP
,
150 .usecount
= 1, /* REVISIT how to disable? */
153 static struct clk vpss_master_clk
= {
154 .name
= "vpss_master",
155 .parent
= &pll1_sysclk3
,
156 .lpsc
= DAVINCI_LPSC_VPSSMSTR
,
160 static struct clk vpss_slave_clk
= {
161 .name
= "vpss_slave",
162 .parent
= &pll1_sysclk3
,
163 .lpsc
= DAVINCI_LPSC_VPSSSLV
,
166 static struct clk uart0_clk
= {
168 .parent
= &pll1_aux_clk
,
169 .lpsc
= DAVINCI_LPSC_UART0
,
172 static struct clk uart1_clk
= {
174 .parent
= &pll1_aux_clk
,
175 .lpsc
= DAVINCI_LPSC_UART1
,
178 static struct clk uart2_clk
= {
180 .parent
= &pll1_aux_clk
,
181 .lpsc
= DAVINCI_LPSC_UART2
,
184 static struct clk emac_clk
= {
186 .parent
= &pll1_sysclk5
,
187 .lpsc
= DAVINCI_LPSC_EMAC_WRAPPER
,
190 static struct clk i2c_clk
= {
192 .parent
= &pll1_aux_clk
,
193 .lpsc
= DAVINCI_LPSC_I2C
,
196 static struct clk ide_clk
= {
198 .parent
= &pll1_sysclk5
,
199 .lpsc
= DAVINCI_LPSC_ATA
,
202 static struct clk asp_clk
= {
204 .parent
= &pll1_sysclk5
,
205 .lpsc
= DAVINCI_LPSC_McBSP
,
208 static struct clk mmcsd_clk
= {
210 .parent
= &pll1_sysclk5
,
211 .lpsc
= DAVINCI_LPSC_MMC_SD
,
214 static struct clk spi_clk
= {
216 .parent
= &pll1_sysclk5
,
217 .lpsc
= DAVINCI_LPSC_SPI
,
220 static struct clk gpio_clk
= {
222 .parent
= &pll1_sysclk5
,
223 .lpsc
= DAVINCI_LPSC_GPIO
,
226 static struct clk usb_clk
= {
228 .parent
= &pll1_sysclk5
,
229 .lpsc
= DAVINCI_LPSC_USB
,
232 static struct clk vlynq_clk
= {
234 .parent
= &pll1_sysclk5
,
235 .lpsc
= DAVINCI_LPSC_VLYNQ
,
238 static struct clk aemif_clk
= {
240 .parent
= &pll1_sysclk5
,
241 .lpsc
= DAVINCI_LPSC_AEMIF
,
244 static struct clk pwm0_clk
= {
246 .parent
= &pll1_aux_clk
,
247 .lpsc
= DAVINCI_LPSC_PWM0
,
250 static struct clk pwm1_clk
= {
252 .parent
= &pll1_aux_clk
,
253 .lpsc
= DAVINCI_LPSC_PWM1
,
256 static struct clk pwm2_clk
= {
258 .parent
= &pll1_aux_clk
,
259 .lpsc
= DAVINCI_LPSC_PWM2
,
262 static struct clk timer0_clk
= {
264 .parent
= &pll1_aux_clk
,
265 .lpsc
= DAVINCI_LPSC_TIMER0
,
268 static struct clk timer1_clk
= {
270 .parent
= &pll1_aux_clk
,
271 .lpsc
= DAVINCI_LPSC_TIMER1
,
274 static struct clk timer2_clk
= {
276 .parent
= &pll1_aux_clk
,
277 .lpsc
= DAVINCI_LPSC_TIMER2
,
278 .usecount
= 1, /* REVISIT: why cant' this be disabled? */
281 struct davinci_clk dm644x_clks
[] = {
282 CLK(NULL
, "ref", &ref_clk
),
283 CLK(NULL
, "pll1", &pll1_clk
),
284 CLK(NULL
, "pll1_sysclk1", &pll1_sysclk1
),
285 CLK(NULL
, "pll1_sysclk2", &pll1_sysclk2
),
286 CLK(NULL
, "pll1_sysclk3", &pll1_sysclk3
),
287 CLK(NULL
, "pll1_sysclk5", &pll1_sysclk5
),
288 CLK(NULL
, "pll1_aux", &pll1_aux_clk
),
289 CLK(NULL
, "pll1_sysclkbp", &pll1_sysclkbp
),
290 CLK(NULL
, "pll2", &pll2_clk
),
291 CLK(NULL
, "pll2_sysclk1", &pll2_sysclk1
),
292 CLK(NULL
, "pll2_sysclk2", &pll2_sysclk2
),
293 CLK(NULL
, "pll2_sysclkbp", &pll2_sysclkbp
),
294 CLK(NULL
, "dsp", &dsp_clk
),
295 CLK(NULL
, "arm", &arm_clk
),
296 CLK(NULL
, "vicp", &vicp_clk
),
297 CLK(NULL
, "vpss_master", &vpss_master_clk
),
298 CLK(NULL
, "vpss_slave", &vpss_slave_clk
),
299 CLK(NULL
, "arm", &arm_clk
),
300 CLK(NULL
, "uart0", &uart0_clk
),
301 CLK(NULL
, "uart1", &uart1_clk
),
302 CLK(NULL
, "uart2", &uart2_clk
),
303 CLK("davinci_emac.1", NULL
, &emac_clk
),
304 CLK("i2c_davinci.1", NULL
, &i2c_clk
),
305 CLK("palm_bk3710", NULL
, &ide_clk
),
306 CLK("soc-audio.0", NULL
, &asp_clk
),
307 CLK("davinci_mmc.0", NULL
, &mmcsd_clk
),
308 CLK(NULL
, "spi", &spi_clk
),
309 CLK(NULL
, "gpio", &gpio_clk
),
310 CLK(NULL
, "usb", &usb_clk
),
311 CLK(NULL
, "vlynq", &vlynq_clk
),
312 CLK(NULL
, "aemif", &aemif_clk
),
313 CLK(NULL
, "pwm0", &pwm0_clk
),
314 CLK(NULL
, "pwm1", &pwm1_clk
),
315 CLK(NULL
, "pwm2", &pwm2_clk
),
316 CLK(NULL
, "timer0", &timer0_clk
),
317 CLK(NULL
, "timer1", &timer1_clk
),
318 CLK("watchdog", NULL
, &timer2_clk
),
319 CLK(NULL
, NULL
, NULL
),
322 static struct emac_platform_data dm644x_emac_pdata
= {
323 .ctrl_reg_offset
= DM644X_EMAC_CNTRL_OFFSET
,
324 .ctrl_mod_reg_offset
= DM644X_EMAC_CNTRL_MOD_OFFSET
,
325 .ctrl_ram_offset
= DM644X_EMAC_CNTRL_RAM_OFFSET
,
326 .mdio_reg_offset
= DM644X_EMAC_MDIO_OFFSET
,
327 .ctrl_ram_size
= DM644X_EMAC_CNTRL_RAM_SIZE
,
328 .version
= EMAC_VERSION_1
,
331 static struct resource dm644x_emac_resources
[] = {
333 .start
= DM644X_EMAC_BASE
,
334 .end
= DM644X_EMAC_BASE
+ 0x47ff,
335 .flags
= IORESOURCE_MEM
,
338 .start
= IRQ_EMACINT
,
340 .flags
= IORESOURCE_IRQ
,
344 static struct platform_device dm644x_emac_device
= {
345 .name
= "davinci_emac",
348 .platform_data
= &dm644x_emac_pdata
,
350 .num_resources
= ARRAY_SIZE(dm644x_emac_resources
),
351 .resource
= dm644x_emac_resources
,
358 * Device specific mux setup
360 * soc description mux mode mode mux dbg
361 * reg offset mask mode
363 static const struct mux_config dm644x_pins
[] = {
364 #ifdef CONFIG_DAVINCI_MUX
365 MUX_CFG(DM644X
, HDIREN
, 0, 16, 1, 1, true)
366 MUX_CFG(DM644X
, ATAEN
, 0, 17, 1, 1, true)
367 MUX_CFG(DM644X
, ATAEN_DISABLE
, 0, 17, 1, 0, true)
369 MUX_CFG(DM644X
, HPIEN_DISABLE
, 0, 29, 1, 0, true)
371 MUX_CFG(DM644X
, AEAW
, 0, 0, 31, 31, true)
373 MUX_CFG(DM644X
, MSTK
, 1, 9, 1, 0, false)
375 MUX_CFG(DM644X
, I2C
, 1, 7, 1, 1, false)
377 MUX_CFG(DM644X
, MCBSP
, 1, 10, 1, 1, false)
379 MUX_CFG(DM644X
, UART1
, 1, 1, 1, 1, true)
380 MUX_CFG(DM644X
, UART2
, 1, 2, 1, 1, true)
382 MUX_CFG(DM644X
, PWM0
, 1, 4, 1, 1, false)
384 MUX_CFG(DM644X
, PWM1
, 1, 5, 1, 1, false)
386 MUX_CFG(DM644X
, PWM2
, 1, 6, 1, 1, false)
388 MUX_CFG(DM644X
, VLYNQEN
, 0, 15, 1, 1, false)
389 MUX_CFG(DM644X
, VLSCREN
, 0, 14, 1, 1, false)
390 MUX_CFG(DM644X
, VLYNQWD
, 0, 12, 3, 3, false)
392 MUX_CFG(DM644X
, EMACEN
, 0, 31, 1, 1, true)
394 MUX_CFG(DM644X
, GPIO3V
, 0, 31, 1, 0, true)
396 MUX_CFG(DM644X
, GPIO0
, 0, 24, 1, 0, true)
397 MUX_CFG(DM644X
, GPIO3
, 0, 25, 1, 0, false)
398 MUX_CFG(DM644X
, GPIO43_44
, 1, 7, 1, 0, false)
399 MUX_CFG(DM644X
, GPIO46_47
, 0, 22, 1, 0, true)
401 MUX_CFG(DM644X
, RGB666
, 0, 22, 1, 1, true)
403 MUX_CFG(DM644X
, LOEEN
, 0, 24, 1, 1, true)
404 MUX_CFG(DM644X
, LFLDEN
, 0, 25, 1, 1, false)
408 /* FIQ are pri 0-1; otherwise 2-7, with 7 lowest priority */
409 static u8 dm644x_default_priorities
[DAVINCI_N_AINTC_IRQ
] = {
426 [IRQ_CCINT0
] = 5, /* dma */
427 [IRQ_CCERRINT
] = 5, /* dma */
428 [IRQ_TCERRINT0
] = 5, /* dma */
429 [IRQ_TCERRINT
] = 5, /* dma */
442 [IRQ_TINT0_TINT12
] = 2, /* clockevent */
443 [IRQ_TINT0_TINT34
] = 2, /* clocksource */
444 [IRQ_TINT1_TINT12
] = 7, /* DSP timer */
445 [IRQ_TINT1_TINT34
] = 7, /* system tick */
476 /*----------------------------------------------------------------------*/
478 static const s8 dma_chan_dm644x_no_event
[] = {
487 static struct edma_soc_info dm644x_edma_info
= {
492 .noevent
= dma_chan_dm644x_no_event
,
495 static struct resource edma_resources
[] = {
499 .end
= 0x01c00000 + SZ_64K
- 1,
500 .flags
= IORESOURCE_MEM
,
505 .end
= 0x01c10000 + SZ_1K
- 1,
506 .flags
= IORESOURCE_MEM
,
511 .end
= 0x01c10400 + SZ_1K
- 1,
512 .flags
= IORESOURCE_MEM
,
516 .flags
= IORESOURCE_IRQ
,
519 .start
= IRQ_CCERRINT
,
520 .flags
= IORESOURCE_IRQ
,
522 /* not using TC*_ERR */
525 static struct platform_device dm644x_edma_device
= {
528 .dev
.platform_data
= &dm644x_edma_info
,
529 .num_resources
= ARRAY_SIZE(edma_resources
),
530 .resource
= edma_resources
,
533 /*----------------------------------------------------------------------*/
535 static struct map_desc dm644x_io_desc
[] = {
538 .pfn
= __phys_to_pfn(IO_PHYS
),
543 .virtual = SRAM_VIRT
,
544 .pfn
= __phys_to_pfn(0x00008000),
546 /* MT_MEMORY_NONCACHED requires supersection alignment */
551 /* Contents of JTAG ID register used to identify exact cpu type */
552 static struct davinci_id dm644x_ids
[] = {
556 .manufacturer
= 0x017,
557 .cpu_id
= DAVINCI_CPU_ID_DM6446
,
562 static void __iomem
*dm644x_psc_bases
[] = {
563 IO_ADDRESS(DAVINCI_PWR_SLEEP_CNTRL_BASE
),
567 * T0_BOT: Timer 0, bottom: clockevent source for hrtimers
568 * T0_TOP: Timer 0, top : clocksource for generic timekeeping
569 * T1_BOT: Timer 1, bottom: (used by DSP in TI DSPLink code)
570 * T1_TOP: Timer 1, top : <unused>
572 struct davinci_timer_info dm644x_timer_info
= {
573 .timers
= davinci_timer_instance
,
574 .clockevent_id
= T0_BOT
,
575 .clocksource_id
= T0_TOP
,
578 static struct plat_serial8250_port dm644x_serial_platform_data
[] = {
580 .mapbase
= DAVINCI_UART0_BASE
,
582 .flags
= UPF_BOOT_AUTOCONF
| UPF_SKIP_TEST
|
588 .mapbase
= DAVINCI_UART1_BASE
,
590 .flags
= UPF_BOOT_AUTOCONF
| UPF_SKIP_TEST
|
596 .mapbase
= DAVINCI_UART2_BASE
,
598 .flags
= UPF_BOOT_AUTOCONF
| UPF_SKIP_TEST
|
608 static struct platform_device dm644x_serial_device
= {
609 .name
= "serial8250",
610 .id
= PLAT8250_DEV_PLATFORM
,
612 .platform_data
= dm644x_serial_platform_data
,
616 static struct davinci_soc_info davinci_soc_info_dm644x
= {
617 .io_desc
= dm644x_io_desc
,
618 .io_desc_num
= ARRAY_SIZE(dm644x_io_desc
),
619 .jtag_id_base
= IO_ADDRESS(0x01c40028),
621 .ids_num
= ARRAY_SIZE(dm644x_ids
),
622 .cpu_clks
= dm644x_clks
,
623 .psc_bases
= dm644x_psc_bases
,
624 .psc_bases_num
= ARRAY_SIZE(dm644x_psc_bases
),
625 .pinmux_base
= IO_ADDRESS(DAVINCI_SYSTEM_MODULE_BASE
),
626 .pinmux_pins
= dm644x_pins
,
627 .pinmux_pins_num
= ARRAY_SIZE(dm644x_pins
),
628 .intc_base
= IO_ADDRESS(DAVINCI_ARM_INTC_BASE
),
629 .intc_type
= DAVINCI_INTC_TYPE_AINTC
,
630 .intc_irq_prios
= dm644x_default_priorities
,
631 .intc_irq_num
= DAVINCI_N_AINTC_IRQ
,
632 .timer_info
= &dm644x_timer_info
,
633 .wdt_base
= IO_ADDRESS(DAVINCI_WDOG_BASE
),
634 .gpio_base
= IO_ADDRESS(DAVINCI_GPIO_BASE
),
636 .gpio_irq
= IRQ_GPIOBNK0
,
637 .serial_dev
= &dm644x_serial_device
,
638 .emac_pdata
= &dm644x_emac_pdata
,
639 .sram_dma
= 0x00008000,
643 void __init
dm644x_init(void)
645 davinci_common_init(&davinci_soc_info_dm644x
);
648 static int __init
dm644x_init_devices(void)
650 if (!cpu_is_davinci_dm644x())
653 platform_device_register(&dm644x_edma_device
);
654 platform_device_register(&dm644x_emac_device
);
657 postcore_initcall(dm644x_init_devices
);