2 * Copyright (C) 2005-2006 Atmel Corporation
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
9 #include <linux/delay.h>
10 #include <linux/dw_dmac.h>
12 #include <linux/init.h>
13 #include <linux/platform_device.h>
14 #include <linux/dma-mapping.h>
15 #include <linux/gpio.h>
16 #include <linux/spi/spi.h>
17 #include <linux/usb/atmel_usba_udc.h>
19 #include <mach/atmel-mci.h>
20 #include <linux/atmel-mci.h>
25 #include <mach/at32ap700x.h>
26 #include <mach/board.h>
27 #include <mach/hmatrix.h>
28 #include <mach/portmux.h>
29 #include <mach/sram.h>
31 #include <sound/atmel-abdac.h>
32 #include <sound/atmel-ac97c.h>
34 #include <video/atmel_lcdc.h>
44 .end = base + 0x3ff, \
45 .flags = IORESOURCE_MEM, \
51 .flags = IORESOURCE_IRQ, \
53 #define NAMED_IRQ(num, _name) \
58 .flags = IORESOURCE_IRQ, \
61 /* REVISIT these assume *every* device supports DMA, but several
62 * don't ... tc, smc, pio, rtc, watchdog, pwm, ps2, and more.
64 #define DEFINE_DEV(_name, _id) \
65 static u64 _name##_id##_dma_mask = DMA_BIT_MASK(32); \
66 static struct platform_device _name##_id##_device = { \
70 .dma_mask = &_name##_id##_dma_mask, \
71 .coherent_dma_mask = DMA_BIT_MASK(32), \
73 .resource = _name##_id##_resource, \
74 .num_resources = ARRAY_SIZE(_name##_id##_resource), \
76 #define DEFINE_DEV_DATA(_name, _id) \
77 static u64 _name##_id##_dma_mask = DMA_BIT_MASK(32); \
78 static struct platform_device _name##_id##_device = { \
82 .dma_mask = &_name##_id##_dma_mask, \
83 .platform_data = &_name##_id##_data, \
84 .coherent_dma_mask = DMA_BIT_MASK(32), \
86 .resource = _name##_id##_resource, \
87 .num_resources = ARRAY_SIZE(_name##_id##_resource), \
90 #define select_peripheral(port, pin_mask, periph, flags) \
91 at32_select_periph(GPIO_##port##_BASE, pin_mask, \
94 #define DEV_CLK(_name, devname, bus, _index) \
95 static struct clk devname##_##_name = { \
97 .dev = &devname##_device.dev, \
98 .parent = &bus##_clk, \
99 .mode = bus##_clk_mode, \
100 .get_rate = bus##_clk_get_rate, \
104 static DEFINE_SPINLOCK(pm_lock);
106 static struct clk osc0;
107 static struct clk osc1;
109 static unsigned long osc_get_rate(struct clk *clk)
111 return at32_board_osc_rates[clk->index];
114 static unsigned long pll_get_rate(struct clk *clk, unsigned long control)
116 unsigned long div, mul, rate;
118 div = PM_BFEXT(PLLDIV, control) + 1;
119 mul = PM_BFEXT(PLLMUL, control) + 1;
121 rate = clk->parent->get_rate(clk->parent);
122 rate = (rate + div / 2) / div;
128 static long pll_set_rate(struct clk *clk, unsigned long rate,
132 unsigned long mul_best_fit = 0;
134 unsigned long div_min;
135 unsigned long div_max;
136 unsigned long div_best_fit = 0;
138 unsigned long pll_in;
139 unsigned long actual = 0;
140 unsigned long rate_error;
141 unsigned long rate_error_prev = ~0UL;
144 /* Rate must be between 80 MHz and 200 Mhz. */
145 if (rate < 80000000UL || rate > 200000000UL)
148 ctrl = PM_BF(PLLOPT, 4);
149 base = clk->parent->get_rate(clk->parent);
151 /* PLL input frequency must be between 6 MHz and 32 MHz. */
152 div_min = DIV_ROUND_UP(base, 32000000UL);
153 div_max = base / 6000000UL;
155 if (div_max < div_min)
158 for (div = div_min; div <= div_max; div++) {
159 pll_in = (base + div / 2) / div;
160 mul = (rate + pll_in / 2) / pll_in;
165 actual = pll_in * mul;
166 rate_error = abs(actual - rate);
168 if (rate_error < rate_error_prev) {
171 rate_error_prev = rate_error;
178 if (div_best_fit == 0)
181 ctrl |= PM_BF(PLLMUL, mul_best_fit - 1);
182 ctrl |= PM_BF(PLLDIV, div_best_fit - 1);
183 ctrl |= PM_BF(PLLCOUNT, 16);
185 if (clk->parent == &osc1)
186 ctrl |= PM_BIT(PLLOSC);
193 static unsigned long pll0_get_rate(struct clk *clk)
197 control = pm_readl(PLL0);
199 return pll_get_rate(clk, control);
202 static void pll1_mode(struct clk *clk, int enabled)
204 unsigned long timeout;
208 ctrl = pm_readl(PLL1);
211 if (!PM_BFEXT(PLLMUL, ctrl) && !PM_BFEXT(PLLDIV, ctrl)) {
212 pr_debug("clk %s: failed to enable, rate not set\n",
217 ctrl |= PM_BIT(PLLEN);
218 pm_writel(PLL1, ctrl);
220 /* Wait for PLL lock. */
221 for (timeout = 10000; timeout; timeout--) {
222 status = pm_readl(ISR);
223 if (status & PM_BIT(LOCK1))
228 if (!(status & PM_BIT(LOCK1)))
229 printk(KERN_ERR "clk %s: timeout waiting for lock\n",
232 ctrl &= ~PM_BIT(PLLEN);
233 pm_writel(PLL1, ctrl);
237 static unsigned long pll1_get_rate(struct clk *clk)
241 control = pm_readl(PLL1);
243 return pll_get_rate(clk, control);
246 static long pll1_set_rate(struct clk *clk, unsigned long rate, int apply)
249 unsigned long actual_rate;
251 actual_rate = pll_set_rate(clk, rate, &ctrl);
254 if (actual_rate != rate)
258 pr_debug(KERN_INFO "clk %s: new rate %lu (actual rate %lu)\n",
259 clk->name, rate, actual_rate);
260 pm_writel(PLL1, ctrl);
266 static int pll1_set_parent(struct clk *clk, struct clk *parent)
273 ctrl = pm_readl(PLL1);
274 WARN_ON(ctrl & PM_BIT(PLLEN));
277 ctrl &= ~PM_BIT(PLLOSC);
278 else if (parent == &osc1)
279 ctrl |= PM_BIT(PLLOSC);
283 pm_writel(PLL1, ctrl);
284 clk->parent = parent;
290 * The AT32AP7000 has five primary clock sources: One 32kHz
291 * oscillator, two crystal oscillators and two PLLs.
293 static struct clk osc32k = {
295 .get_rate = osc_get_rate,
299 static struct clk osc0 = {
301 .get_rate = osc_get_rate,
305 static struct clk osc1 = {
307 .get_rate = osc_get_rate,
310 static struct clk pll0 = {
312 .get_rate = pll0_get_rate,
315 static struct clk pll1 = {
318 .get_rate = pll1_get_rate,
319 .set_rate = pll1_set_rate,
320 .set_parent = pll1_set_parent,
325 * The main clock can be either osc0 or pll0. The boot loader may
326 * have chosen one for us, so we don't really know which one until we
327 * have a look at the SM.
329 static struct clk *main_clock;
332 * Synchronous clocks are generated from the main clock. The clocks
333 * must satisfy the constraint
334 * fCPU >= fHSB >= fPB
335 * i.e. each clock must not be faster than its parent.
337 static unsigned long bus_clk_get_rate(struct clk *clk, unsigned int shift)
339 return main_clock->get_rate(main_clock) >> shift;
342 static void cpu_clk_mode(struct clk *clk, int enabled)
347 spin_lock_irqsave(&pm_lock, flags);
348 mask = pm_readl(CPU_MASK);
350 mask |= 1 << clk->index;
352 mask &= ~(1 << clk->index);
353 pm_writel(CPU_MASK, mask);
354 spin_unlock_irqrestore(&pm_lock, flags);
357 static unsigned long cpu_clk_get_rate(struct clk *clk)
359 unsigned long cksel, shift = 0;
361 cksel = pm_readl(CKSEL);
362 if (cksel & PM_BIT(CPUDIV))
363 shift = PM_BFEXT(CPUSEL, cksel) + 1;
365 return bus_clk_get_rate(clk, shift);
368 static long cpu_clk_set_rate(struct clk *clk, unsigned long rate, int apply)
371 unsigned long parent_rate, child_div, actual_rate, div;
373 parent_rate = clk->parent->get_rate(clk->parent);
374 control = pm_readl(CKSEL);
376 if (control & PM_BIT(HSBDIV))
377 child_div = 1 << (PM_BFEXT(HSBSEL, control) + 1);
381 if (rate > 3 * (parent_rate / 4) || child_div == 1) {
382 actual_rate = parent_rate;
383 control &= ~PM_BIT(CPUDIV);
386 div = (parent_rate + rate / 2) / rate;
389 cpusel = (div > 1) ? (fls(div) - 2) : 0;
390 control = PM_BIT(CPUDIV) | PM_BFINS(CPUSEL, cpusel, control);
391 actual_rate = parent_rate / (1 << (cpusel + 1));
394 pr_debug("clk %s: new rate %lu (actual rate %lu)\n",
395 clk->name, rate, actual_rate);
398 pm_writel(CKSEL, control);
403 static void hsb_clk_mode(struct clk *clk, int enabled)
408 spin_lock_irqsave(&pm_lock, flags);
409 mask = pm_readl(HSB_MASK);
411 mask |= 1 << clk->index;
413 mask &= ~(1 << clk->index);
414 pm_writel(HSB_MASK, mask);
415 spin_unlock_irqrestore(&pm_lock, flags);
418 static unsigned long hsb_clk_get_rate(struct clk *clk)
420 unsigned long cksel, shift = 0;
422 cksel = pm_readl(CKSEL);
423 if (cksel & PM_BIT(HSBDIV))
424 shift = PM_BFEXT(HSBSEL, cksel) + 1;
426 return bus_clk_get_rate(clk, shift);
429 void pba_clk_mode(struct clk *clk, int enabled)
434 spin_lock_irqsave(&pm_lock, flags);
435 mask = pm_readl(PBA_MASK);
437 mask |= 1 << clk->index;
439 mask &= ~(1 << clk->index);
440 pm_writel(PBA_MASK, mask);
441 spin_unlock_irqrestore(&pm_lock, flags);
444 unsigned long pba_clk_get_rate(struct clk *clk)
446 unsigned long cksel, shift = 0;
448 cksel = pm_readl(CKSEL);
449 if (cksel & PM_BIT(PBADIV))
450 shift = PM_BFEXT(PBASEL, cksel) + 1;
452 return bus_clk_get_rate(clk, shift);
455 static void pbb_clk_mode(struct clk *clk, int enabled)
460 spin_lock_irqsave(&pm_lock, flags);
461 mask = pm_readl(PBB_MASK);
463 mask |= 1 << clk->index;
465 mask &= ~(1 << clk->index);
466 pm_writel(PBB_MASK, mask);
467 spin_unlock_irqrestore(&pm_lock, flags);
470 static unsigned long pbb_clk_get_rate(struct clk *clk)
472 unsigned long cksel, shift = 0;
474 cksel = pm_readl(CKSEL);
475 if (cksel & PM_BIT(PBBDIV))
476 shift = PM_BFEXT(PBBSEL, cksel) + 1;
478 return bus_clk_get_rate(clk, shift);
481 static struct clk cpu_clk = {
483 .get_rate = cpu_clk_get_rate,
484 .set_rate = cpu_clk_set_rate,
487 static struct clk hsb_clk = {
490 .get_rate = hsb_clk_get_rate,
492 static struct clk pba_clk = {
495 .mode = hsb_clk_mode,
496 .get_rate = pba_clk_get_rate,
499 static struct clk pbb_clk = {
502 .mode = hsb_clk_mode,
503 .get_rate = pbb_clk_get_rate,
508 /* --------------------------------------------------------------------
509 * Generic Clock operations
510 * -------------------------------------------------------------------- */
512 static void genclk_mode(struct clk *clk, int enabled)
516 control = pm_readl(GCCTRL(clk->index));
518 control |= PM_BIT(CEN);
520 control &= ~PM_BIT(CEN);
521 pm_writel(GCCTRL(clk->index), control);
524 static unsigned long genclk_get_rate(struct clk *clk)
527 unsigned long div = 1;
529 control = pm_readl(GCCTRL(clk->index));
530 if (control & PM_BIT(DIVEN))
531 div = 2 * (PM_BFEXT(DIV, control) + 1);
533 return clk->parent->get_rate(clk->parent) / div;
536 static long genclk_set_rate(struct clk *clk, unsigned long rate, int apply)
539 unsigned long parent_rate, actual_rate, div;
541 parent_rate = clk->parent->get_rate(clk->parent);
542 control = pm_readl(GCCTRL(clk->index));
544 if (rate > 3 * parent_rate / 4) {
545 actual_rate = parent_rate;
546 control &= ~PM_BIT(DIVEN);
548 div = (parent_rate + rate) / (2 * rate) - 1;
549 control = PM_BFINS(DIV, div, control) | PM_BIT(DIVEN);
550 actual_rate = parent_rate / (2 * (div + 1));
553 dev_dbg(clk->dev, "clk %s: new rate %lu (actual rate %lu)\n",
554 clk->name, rate, actual_rate);
557 pm_writel(GCCTRL(clk->index), control);
562 int genclk_set_parent(struct clk *clk, struct clk *parent)
566 dev_dbg(clk->dev, "clk %s: new parent %s (was %s)\n",
567 clk->name, parent->name, clk->parent->name);
569 control = pm_readl(GCCTRL(clk->index));
571 if (parent == &osc1 || parent == &pll1)
572 control |= PM_BIT(OSCSEL);
573 else if (parent == &osc0 || parent == &pll0)
574 control &= ~PM_BIT(OSCSEL);
578 if (parent == &pll0 || parent == &pll1)
579 control |= PM_BIT(PLLSEL);
581 control &= ~PM_BIT(PLLSEL);
583 pm_writel(GCCTRL(clk->index), control);
584 clk->parent = parent;
589 static void __init genclk_init_parent(struct clk *clk)
594 BUG_ON(clk->index > 7);
596 control = pm_readl(GCCTRL(clk->index));
597 if (control & PM_BIT(OSCSEL))
598 parent = (control & PM_BIT(PLLSEL)) ? &pll1 : &osc1;
600 parent = (control & PM_BIT(PLLSEL)) ? &pll0 : &osc0;
602 clk->parent = parent;
605 static struct dw_dma_platform_data dw_dmac0_data = {
609 static struct resource dw_dmac0_resource[] = {
613 DEFINE_DEV_DATA(dw_dmac, 0);
614 DEV_CLK(hclk, dw_dmac0, hsb, 10);
616 /* --------------------------------------------------------------------
618 * -------------------------------------------------------------------- */
619 static struct resource at32_pm0_resource[] = {
623 .flags = IORESOURCE_MEM,
628 static struct resource at32ap700x_rtc0_resource[] = {
632 .flags = IORESOURCE_MEM,
637 static struct resource at32_wdt0_resource[] = {
641 .flags = IORESOURCE_MEM,
645 static struct resource at32_eic0_resource[] = {
649 .flags = IORESOURCE_MEM,
654 DEFINE_DEV(at32_pm, 0);
655 DEFINE_DEV(at32ap700x_rtc, 0);
656 DEFINE_DEV(at32_wdt, 0);
657 DEFINE_DEV(at32_eic, 0);
660 * Peripheral clock for PM, RTC, WDT and EIC. PM will ensure that this
663 static struct clk at32_pm_pclk = {
665 .dev = &at32_pm0_device.dev,
667 .mode = pbb_clk_mode,
668 .get_rate = pbb_clk_get_rate,
673 static struct resource intc0_resource[] = {
676 struct platform_device at32_intc0_device = {
679 .resource = intc0_resource,
680 .num_resources = ARRAY_SIZE(intc0_resource),
682 DEV_CLK(pclk, at32_intc0, pbb, 1);
684 static struct clk ebi_clk = {
687 .mode = hsb_clk_mode,
688 .get_rate = hsb_clk_get_rate,
691 static struct clk hramc_clk = {
694 .mode = hsb_clk_mode,
695 .get_rate = hsb_clk_get_rate,
699 static struct clk sdramc_clk = {
700 .name = "sdramc_clk",
702 .mode = pbb_clk_mode,
703 .get_rate = pbb_clk_get_rate,
708 static struct resource smc0_resource[] = {
712 DEV_CLK(pclk, smc0, pbb, 13);
713 DEV_CLK(mck, smc0, hsb, 0);
715 static struct platform_device pdc_device = {
719 DEV_CLK(hclk, pdc, hsb, 4);
720 DEV_CLK(pclk, pdc, pba, 16);
722 static struct clk pico_clk = {
725 .mode = cpu_clk_mode,
726 .get_rate = cpu_clk_get_rate,
730 /* --------------------------------------------------------------------
732 * -------------------------------------------------------------------- */
734 struct clk at32_hmatrix_clk = {
735 .name = "hmatrix_clk",
737 .mode = pbb_clk_mode,
738 .get_rate = pbb_clk_get_rate,
744 * Set bits in the HMATRIX Special Function Register (SFR) used by the
745 * External Bus Interface (EBI). This can be used to enable special
746 * features like CompactFlash support, NAND Flash support, etc. on
747 * certain chipselects.
749 static inline void set_ebi_sfr_bits(u32 mask)
751 hmatrix_sfr_set_bits(HMATRIX_SLAVE_EBI, mask);
754 /* --------------------------------------------------------------------
756 * -------------------------------------------------------------------- */
758 static struct resource at32_tcb0_resource[] = {
762 static struct platform_device at32_tcb0_device = {
765 .resource = at32_tcb0_resource,
766 .num_resources = ARRAY_SIZE(at32_tcb0_resource),
768 DEV_CLK(t0_clk, at32_tcb0, pbb, 3);
770 static struct resource at32_tcb1_resource[] = {
774 static struct platform_device at32_tcb1_device = {
777 .resource = at32_tcb1_resource,
778 .num_resources = ARRAY_SIZE(at32_tcb1_resource),
780 DEV_CLK(t0_clk, at32_tcb1, pbb, 4);
782 /* --------------------------------------------------------------------
784 * -------------------------------------------------------------------- */
786 static struct resource pio0_resource[] = {
791 DEV_CLK(mck, pio0, pba, 10);
793 static struct resource pio1_resource[] = {
798 DEV_CLK(mck, pio1, pba, 11);
800 static struct resource pio2_resource[] = {
805 DEV_CLK(mck, pio2, pba, 12);
807 static struct resource pio3_resource[] = {
812 DEV_CLK(mck, pio3, pba, 13);
814 static struct resource pio4_resource[] = {
819 DEV_CLK(mck, pio4, pba, 14);
821 static int __init system_device_init(void)
823 platform_device_register(&at32_pm0_device);
824 platform_device_register(&at32_intc0_device);
825 platform_device_register(&at32ap700x_rtc0_device);
826 platform_device_register(&at32_wdt0_device);
827 platform_device_register(&at32_eic0_device);
828 platform_device_register(&smc0_device);
829 platform_device_register(&pdc_device);
830 platform_device_register(&dw_dmac0_device);
832 platform_device_register(&at32_tcb0_device);
833 platform_device_register(&at32_tcb1_device);
835 platform_device_register(&pio0_device);
836 platform_device_register(&pio1_device);
837 platform_device_register(&pio2_device);
838 platform_device_register(&pio3_device);
839 platform_device_register(&pio4_device);
843 core_initcall(system_device_init);
845 /* --------------------------------------------------------------------
847 * -------------------------------------------------------------------- */
848 static struct resource atmel_psif0_resource[] __initdata = {
852 .flags = IORESOURCE_MEM,
856 static struct clk atmel_psif0_pclk = {
859 .mode = pba_clk_mode,
860 .get_rate = pba_clk_get_rate,
864 static struct resource atmel_psif1_resource[] __initdata = {
868 .flags = IORESOURCE_MEM,
872 static struct clk atmel_psif1_pclk = {
875 .mode = pba_clk_mode,
876 .get_rate = pba_clk_get_rate,
880 struct platform_device *__init at32_add_device_psif(unsigned int id)
882 struct platform_device *pdev;
885 if (!(id == 0 || id == 1))
888 pdev = platform_device_alloc("atmel_psif", id);
894 pin_mask = (1 << 8) | (1 << 9); /* CLOCK & DATA */
896 if (platform_device_add_resources(pdev, atmel_psif0_resource,
897 ARRAY_SIZE(atmel_psif0_resource)))
898 goto err_add_resources;
899 atmel_psif0_pclk.dev = &pdev->dev;
900 select_peripheral(PIOA, pin_mask, PERIPH_A, 0);
903 pin_mask = (1 << 11) | (1 << 12); /* CLOCK & DATA */
905 if (platform_device_add_resources(pdev, atmel_psif1_resource,
906 ARRAY_SIZE(atmel_psif1_resource)))
907 goto err_add_resources;
908 atmel_psif1_pclk.dev = &pdev->dev;
909 select_peripheral(PIOB, pin_mask, PERIPH_A, 0);
915 platform_device_add(pdev);
919 platform_device_put(pdev);
923 /* --------------------------------------------------------------------
925 * -------------------------------------------------------------------- */
927 static struct atmel_uart_data atmel_usart0_data = {
931 static struct resource atmel_usart0_resource[] = {
935 DEFINE_DEV_DATA(atmel_usart, 0);
936 DEV_CLK(usart, atmel_usart0, pba, 3);
938 static struct atmel_uart_data atmel_usart1_data = {
942 static struct resource atmel_usart1_resource[] = {
946 DEFINE_DEV_DATA(atmel_usart, 1);
947 DEV_CLK(usart, atmel_usart1, pba, 4);
949 static struct atmel_uart_data atmel_usart2_data = {
953 static struct resource atmel_usart2_resource[] = {
957 DEFINE_DEV_DATA(atmel_usart, 2);
958 DEV_CLK(usart, atmel_usart2, pba, 5);
960 static struct atmel_uart_data atmel_usart3_data = {
964 static struct resource atmel_usart3_resource[] = {
968 DEFINE_DEV_DATA(atmel_usart, 3);
969 DEV_CLK(usart, atmel_usart3, pba, 6);
971 static inline void configure_usart0_pins(int flags)
973 u32 pin_mask = (1 << 8) | (1 << 9); /* RXD & TXD */
974 if (flags & ATMEL_USART_RTS) pin_mask |= (1 << 6);
975 if (flags & ATMEL_USART_CTS) pin_mask |= (1 << 7);
976 if (flags & ATMEL_USART_CLK) pin_mask |= (1 << 10);
978 select_peripheral(PIOA, pin_mask, PERIPH_B, AT32_GPIOF_PULLUP);
981 static inline void configure_usart1_pins(int flags)
983 u32 pin_mask = (1 << 17) | (1 << 18); /* RXD & TXD */
984 if (flags & ATMEL_USART_RTS) pin_mask |= (1 << 19);
985 if (flags & ATMEL_USART_CTS) pin_mask |= (1 << 20);
986 if (flags & ATMEL_USART_CLK) pin_mask |= (1 << 16);
988 select_peripheral(PIOA, pin_mask, PERIPH_A, AT32_GPIOF_PULLUP);
991 static inline void configure_usart2_pins(int flags)
993 u32 pin_mask = (1 << 26) | (1 << 27); /* RXD & TXD */
994 if (flags & ATMEL_USART_RTS) pin_mask |= (1 << 30);
995 if (flags & ATMEL_USART_CTS) pin_mask |= (1 << 29);
996 if (flags & ATMEL_USART_CLK) pin_mask |= (1 << 28);
998 select_peripheral(PIOB, pin_mask, PERIPH_B, AT32_GPIOF_PULLUP);
1001 static inline void configure_usart3_pins(int flags)
1003 u32 pin_mask = (1 << 18) | (1 << 17); /* RXD & TXD */
1004 if (flags & ATMEL_USART_RTS) pin_mask |= (1 << 16);
1005 if (flags & ATMEL_USART_CTS) pin_mask |= (1 << 15);
1006 if (flags & ATMEL_USART_CLK) pin_mask |= (1 << 19);
1008 select_peripheral(PIOB, pin_mask, PERIPH_B, AT32_GPIOF_PULLUP);
1011 static struct platform_device *__initdata at32_usarts[4];
1013 void __init at32_map_usart(unsigned int hw_id, unsigned int line, int flags)
1015 struct platform_device *pdev;
1019 pdev = &atmel_usart0_device;
1020 configure_usart0_pins(flags);
1023 pdev = &atmel_usart1_device;
1024 configure_usart1_pins(flags);
1027 pdev = &atmel_usart2_device;
1028 configure_usart2_pins(flags);
1031 pdev = &atmel_usart3_device;
1032 configure_usart3_pins(flags);
1038 if (PXSEG(pdev->resource[0].start) == P4SEG) {
1039 /* Addresses in the P4 segment are permanently mapped 1:1 */
1040 struct atmel_uart_data *data = pdev->dev.platform_data;
1041 data->regs = (void __iomem *)pdev->resource[0].start;
1045 at32_usarts[line] = pdev;
1048 struct platform_device *__init at32_add_device_usart(unsigned int id)
1050 platform_device_register(at32_usarts[id]);
1051 return at32_usarts[id];
1054 struct platform_device *atmel_default_console_device;
1056 void __init at32_setup_serial_console(unsigned int usart_id)
1058 atmel_default_console_device = at32_usarts[usart_id];
1061 /* --------------------------------------------------------------------
1063 * -------------------------------------------------------------------- */
1065 #ifdef CONFIG_CPU_AT32AP7000
1066 static struct eth_platform_data macb0_data;
1067 static struct resource macb0_resource[] = {
1071 DEFINE_DEV_DATA(macb, 0);
1072 DEV_CLK(hclk, macb0, hsb, 8);
1073 DEV_CLK(pclk, macb0, pbb, 6);
1075 static struct eth_platform_data macb1_data;
1076 static struct resource macb1_resource[] = {
1080 DEFINE_DEV_DATA(macb, 1);
1081 DEV_CLK(hclk, macb1, hsb, 9);
1082 DEV_CLK(pclk, macb1, pbb, 7);
1084 struct platform_device *__init
1085 at32_add_device_eth(unsigned int id, struct eth_platform_data *data)
1087 struct platform_device *pdev;
1092 pdev = &macb0_device;
1094 pin_mask = (1 << 3); /* TXD0 */
1095 pin_mask |= (1 << 4); /* TXD1 */
1096 pin_mask |= (1 << 7); /* TXEN */
1097 pin_mask |= (1 << 8); /* TXCK */
1098 pin_mask |= (1 << 9); /* RXD0 */
1099 pin_mask |= (1 << 10); /* RXD1 */
1100 pin_mask |= (1 << 13); /* RXER */
1101 pin_mask |= (1 << 15); /* RXDV */
1102 pin_mask |= (1 << 16); /* MDC */
1103 pin_mask |= (1 << 17); /* MDIO */
1105 if (!data->is_rmii) {
1106 pin_mask |= (1 << 0); /* COL */
1107 pin_mask |= (1 << 1); /* CRS */
1108 pin_mask |= (1 << 2); /* TXER */
1109 pin_mask |= (1 << 5); /* TXD2 */
1110 pin_mask |= (1 << 6); /* TXD3 */
1111 pin_mask |= (1 << 11); /* RXD2 */
1112 pin_mask |= (1 << 12); /* RXD3 */
1113 pin_mask |= (1 << 14); /* RXCK */
1114 #ifndef CONFIG_BOARD_MIMC200
1115 pin_mask |= (1 << 18); /* SPD */
1119 select_peripheral(PIOC, pin_mask, PERIPH_A, 0);
1124 pdev = &macb1_device;
1126 pin_mask = (1 << 13); /* TXD0 */
1127 pin_mask |= (1 << 14); /* TXD1 */
1128 pin_mask |= (1 << 11); /* TXEN */
1129 pin_mask |= (1 << 12); /* TXCK */
1130 pin_mask |= (1 << 10); /* RXD0 */
1131 pin_mask |= (1 << 6); /* RXD1 */
1132 pin_mask |= (1 << 5); /* RXER */
1133 pin_mask |= (1 << 4); /* RXDV */
1134 pin_mask |= (1 << 3); /* MDC */
1135 pin_mask |= (1 << 2); /* MDIO */
1137 #ifndef CONFIG_BOARD_MIMC200
1139 pin_mask |= (1 << 15); /* SPD */
1142 select_peripheral(PIOD, pin_mask, PERIPH_B, 0);
1144 if (!data->is_rmii) {
1145 pin_mask = (1 << 19); /* COL */
1146 pin_mask |= (1 << 23); /* CRS */
1147 pin_mask |= (1 << 26); /* TXER */
1148 pin_mask |= (1 << 27); /* TXD2 */
1149 pin_mask |= (1 << 28); /* TXD3 */
1150 pin_mask |= (1 << 29); /* RXD2 */
1151 pin_mask |= (1 << 30); /* RXD3 */
1152 pin_mask |= (1 << 24); /* RXCK */
1154 select_peripheral(PIOC, pin_mask, PERIPH_B, 0);
1162 memcpy(pdev->dev.platform_data, data, sizeof(struct eth_platform_data));
1163 platform_device_register(pdev);
1169 /* --------------------------------------------------------------------
1171 * -------------------------------------------------------------------- */
1172 static struct resource atmel_spi0_resource[] = {
1176 DEFINE_DEV(atmel_spi, 0);
1177 DEV_CLK(spi_clk, atmel_spi0, pba, 0);
1179 static struct resource atmel_spi1_resource[] = {
1183 DEFINE_DEV(atmel_spi, 1);
1184 DEV_CLK(spi_clk, atmel_spi1, pba, 1);
1187 at32_spi_setup_slaves(unsigned int bus_num, struct spi_board_info *b, unsigned int n)
1190 * Manage the chipselects as GPIOs, normally using the same pins
1191 * the SPI controller expects; but boards can use other pins.
1193 static u8 __initdata spi_pins[][4] = {
1194 { GPIO_PIN_PA(3), GPIO_PIN_PA(4),
1195 GPIO_PIN_PA(5), GPIO_PIN_PA(20) },
1196 { GPIO_PIN_PB(2), GPIO_PIN_PB(3),
1197 GPIO_PIN_PB(4), GPIO_PIN_PA(27) },
1199 unsigned int pin, mode;
1201 /* There are only 2 SPI controllers */
1205 for (; n; n--, b++) {
1206 b->bus_num = bus_num;
1207 if (b->chip_select >= 4)
1209 pin = (unsigned)b->controller_data;
1211 pin = spi_pins[bus_num][b->chip_select];
1212 b->controller_data = (void *)pin;
1214 mode = AT32_GPIOF_OUTPUT;
1215 if (!(b->mode & SPI_CS_HIGH))
1216 mode |= AT32_GPIOF_HIGH;
1217 at32_select_gpio(pin, mode);
1221 struct platform_device *__init
1222 at32_add_device_spi(unsigned int id, struct spi_board_info *b, unsigned int n)
1224 struct platform_device *pdev;
1229 pdev = &atmel_spi0_device;
1230 pin_mask = (1 << 1) | (1 << 2); /* MOSI & SCK */
1232 /* pullup MISO so a level is always defined */
1233 select_peripheral(PIOA, (1 << 0), PERIPH_A, AT32_GPIOF_PULLUP);
1234 select_peripheral(PIOA, pin_mask, PERIPH_A, 0);
1236 at32_spi_setup_slaves(0, b, n);
1240 pdev = &atmel_spi1_device;
1241 pin_mask = (1 << 1) | (1 << 5); /* MOSI */
1243 /* pullup MISO so a level is always defined */
1244 select_peripheral(PIOB, (1 << 0), PERIPH_B, AT32_GPIOF_PULLUP);
1245 select_peripheral(PIOB, pin_mask, PERIPH_B, 0);
1247 at32_spi_setup_slaves(1, b, n);
1254 spi_register_board_info(b, n);
1255 platform_device_register(pdev);
1259 /* --------------------------------------------------------------------
1261 * -------------------------------------------------------------------- */
1262 static struct resource atmel_twi0_resource[] __initdata = {
1266 static struct clk atmel_twi0_pclk = {
1269 .mode = pba_clk_mode,
1270 .get_rate = pba_clk_get_rate,
1274 struct platform_device *__init at32_add_device_twi(unsigned int id,
1275 struct i2c_board_info *b,
1278 struct platform_device *pdev;
1284 pdev = platform_device_alloc("atmel_twi", id);
1288 if (platform_device_add_resources(pdev, atmel_twi0_resource,
1289 ARRAY_SIZE(atmel_twi0_resource)))
1290 goto err_add_resources;
1292 pin_mask = (1 << 6) | (1 << 7); /* SDA & SDL */
1294 select_peripheral(PIOA, pin_mask, PERIPH_A, 0);
1296 atmel_twi0_pclk.dev = &pdev->dev;
1299 i2c_register_board_info(id, b, n);
1301 platform_device_add(pdev);
1305 platform_device_put(pdev);
1309 /* --------------------------------------------------------------------
1311 * -------------------------------------------------------------------- */
1312 static struct resource atmel_mci0_resource[] __initdata = {
1316 static struct clk atmel_mci0_pclk = {
1319 .mode = pbb_clk_mode,
1320 .get_rate = pbb_clk_get_rate,
1324 struct platform_device *__init
1325 at32_add_device_mci(unsigned int id, struct mci_platform_data *data)
1327 struct platform_device *pdev;
1328 struct mci_dma_slave *slave;
1332 if (id != 0 || !data)
1335 /* Must have at least one usable slot */
1336 if (!data->slot[0].bus_width && !data->slot[1].bus_width)
1339 pdev = platform_device_alloc("atmel_mci", id);
1343 if (platform_device_add_resources(pdev, atmel_mci0_resource,
1344 ARRAY_SIZE(atmel_mci0_resource)))
1347 slave = kzalloc(sizeof(struct mci_dma_slave), GFP_KERNEL);
1349 slave->sdata.dma_dev = &dw_dmac0_device.dev;
1350 slave->sdata.reg_width = DW_DMA_SLAVE_WIDTH_32BIT;
1351 slave->sdata.cfg_hi = (DWC_CFGH_SRC_PER(0)
1352 | DWC_CFGH_DST_PER(1));
1353 slave->sdata.cfg_lo &= ~(DWC_CFGL_HS_DST_POL
1354 | DWC_CFGL_HS_SRC_POL);
1356 data->dma_slave = slave;
1358 if (platform_device_add_data(pdev, data,
1359 sizeof(struct mci_platform_data)))
1362 /* CLK line is common to both slots */
1363 pioa_mask = 1 << 10;
1365 switch (data->slot[0].bus_width) {
1367 pioa_mask |= 1 << 13; /* DATA1 */
1368 pioa_mask |= 1 << 14; /* DATA2 */
1369 pioa_mask |= 1 << 15; /* DATA3 */
1372 pioa_mask |= 1 << 11; /* CMD */
1373 pioa_mask |= 1 << 12; /* DATA0 */
1375 if (gpio_is_valid(data->slot[0].detect_pin))
1376 at32_select_gpio(data->slot[0].detect_pin, 0);
1377 if (gpio_is_valid(data->slot[0].wp_pin))
1378 at32_select_gpio(data->slot[0].wp_pin, 0);
1381 /* Slot is unused */
1387 select_peripheral(PIOA, pioa_mask, PERIPH_A, 0);
1390 switch (data->slot[1].bus_width) {
1392 piob_mask |= 1 << 8; /* DATA1 */
1393 piob_mask |= 1 << 9; /* DATA2 */
1394 piob_mask |= 1 << 10; /* DATA3 */
1397 piob_mask |= 1 << 6; /* CMD */
1398 piob_mask |= 1 << 7; /* DATA0 */
1399 select_peripheral(PIOB, piob_mask, PERIPH_B, 0);
1401 if (gpio_is_valid(data->slot[1].detect_pin))
1402 at32_select_gpio(data->slot[1].detect_pin, 0);
1403 if (gpio_is_valid(data->slot[1].wp_pin))
1404 at32_select_gpio(data->slot[1].wp_pin, 0);
1407 /* Slot is unused */
1410 if (!data->slot[0].bus_width)
1413 data->slot[1].bus_width = 0;
1417 atmel_mci0_pclk.dev = &pdev->dev;
1419 platform_device_add(pdev);
1423 data->dma_slave = NULL;
1425 platform_device_put(pdev);
1429 /* --------------------------------------------------------------------
1431 * -------------------------------------------------------------------- */
1432 #if defined(CONFIG_CPU_AT32AP7000) || defined(CONFIG_CPU_AT32AP7002)
1433 static struct atmel_lcdfb_info atmel_lcdfb0_data;
1434 static struct resource atmel_lcdfb0_resource[] = {
1436 .start = 0xff000000,
1438 .flags = IORESOURCE_MEM,
1442 /* Placeholder for pre-allocated fb memory */
1443 .start = 0x00000000,
1448 DEFINE_DEV_DATA(atmel_lcdfb, 0);
1449 DEV_CLK(hck1, atmel_lcdfb0, hsb, 7);
1450 static struct clk atmel_lcdfb0_pixclk = {
1452 .dev = &atmel_lcdfb0_device.dev,
1453 .mode = genclk_mode,
1454 .get_rate = genclk_get_rate,
1455 .set_rate = genclk_set_rate,
1456 .set_parent = genclk_set_parent,
1460 struct platform_device *__init
1461 at32_add_device_lcdc(unsigned int id, struct atmel_lcdfb_info *data,
1462 unsigned long fbmem_start, unsigned long fbmem_len,
1465 struct platform_device *pdev;
1466 struct atmel_lcdfb_info *info;
1467 struct fb_monspecs *monspecs;
1468 struct fb_videomode *modedb;
1469 unsigned int modedb_size;
1470 u32 portc_mask, portd_mask, porte_mask;
1473 * Do a deep copy of the fb data, monspecs and modedb. Make
1474 * sure all allocations are done before setting up the
1477 monspecs = kmemdup(data->default_monspecs,
1478 sizeof(struct fb_monspecs), GFP_KERNEL);
1482 modedb_size = sizeof(struct fb_videomode) * monspecs->modedb_len;
1483 modedb = kmemdup(monspecs->modedb, modedb_size, GFP_KERNEL);
1485 goto err_dup_modedb;
1486 monspecs->modedb = modedb;
1490 pdev = &atmel_lcdfb0_device;
1492 if (pin_mask == 0ULL)
1493 /* Default to "full" lcdc control signals and 24bit */
1494 pin_mask = ATMEL_LCDC_PRI_24BIT | ATMEL_LCDC_PRI_CONTROL;
1496 /* LCDC on port C */
1497 portc_mask = pin_mask & 0xfff80000;
1498 select_peripheral(PIOC, portc_mask, PERIPH_A, 0);
1500 /* LCDC on port D */
1501 portd_mask = pin_mask & 0x0003ffff;
1502 select_peripheral(PIOD, portd_mask, PERIPH_A, 0);
1504 /* LCDC on port E */
1505 porte_mask = (pin_mask >> 32) & 0x0007ffff;
1506 select_peripheral(PIOE, porte_mask, PERIPH_B, 0);
1508 clk_set_parent(&atmel_lcdfb0_pixclk, &pll0);
1509 clk_set_rate(&atmel_lcdfb0_pixclk, clk_get_rate(&pll0));
1513 goto err_invalid_id;
1517 pdev->resource[2].start = fbmem_start;
1518 pdev->resource[2].end = fbmem_start + fbmem_len - 1;
1519 pdev->resource[2].flags = IORESOURCE_MEM;
1522 info = pdev->dev.platform_data;
1523 memcpy(info, data, sizeof(struct atmel_lcdfb_info));
1524 info->default_monspecs = monspecs;
1526 platform_device_register(pdev);
1537 /* --------------------------------------------------------------------
1539 * -------------------------------------------------------------------- */
1540 static struct resource atmel_pwm0_resource[] __initdata = {
1544 static struct clk atmel_pwm0_mck = {
1547 .mode = pbb_clk_mode,
1548 .get_rate = pbb_clk_get_rate,
1552 struct platform_device *__init at32_add_device_pwm(u32 mask)
1554 struct platform_device *pdev;
1560 pdev = platform_device_alloc("atmel_pwm", 0);
1564 if (platform_device_add_resources(pdev, atmel_pwm0_resource,
1565 ARRAY_SIZE(atmel_pwm0_resource)))
1568 if (platform_device_add_data(pdev, &mask, sizeof(mask)))
1572 if (mask & (1 << 0))
1573 pin_mask |= (1 << 28);
1574 if (mask & (1 << 1))
1575 pin_mask |= (1 << 29);
1577 select_peripheral(PIOA, pin_mask, PERIPH_A, 0);
1580 if (mask & (1 << 2))
1581 pin_mask |= (1 << 21);
1582 if (mask & (1 << 3))
1583 pin_mask |= (1 << 22);
1585 select_peripheral(PIOA, pin_mask, PERIPH_B, 0);
1587 atmel_pwm0_mck.dev = &pdev->dev;
1589 platform_device_add(pdev);
1594 platform_device_put(pdev);
1598 /* --------------------------------------------------------------------
1600 * -------------------------------------------------------------------- */
1601 static struct resource ssc0_resource[] = {
1606 DEV_CLK(pclk, ssc0, pba, 7);
1608 static struct resource ssc1_resource[] = {
1613 DEV_CLK(pclk, ssc1, pba, 8);
1615 static struct resource ssc2_resource[] = {
1620 DEV_CLK(pclk, ssc2, pba, 9);
1622 struct platform_device *__init
1623 at32_add_device_ssc(unsigned int id, unsigned int flags)
1625 struct platform_device *pdev;
1630 pdev = &ssc0_device;
1631 if (flags & ATMEL_SSC_RF)
1632 pin_mask |= (1 << 21); /* RF */
1633 if (flags & ATMEL_SSC_RK)
1634 pin_mask |= (1 << 22); /* RK */
1635 if (flags & ATMEL_SSC_TK)
1636 pin_mask |= (1 << 23); /* TK */
1637 if (flags & ATMEL_SSC_TF)
1638 pin_mask |= (1 << 24); /* TF */
1639 if (flags & ATMEL_SSC_TD)
1640 pin_mask |= (1 << 25); /* TD */
1641 if (flags & ATMEL_SSC_RD)
1642 pin_mask |= (1 << 26); /* RD */
1645 select_peripheral(PIOA, pin_mask, PERIPH_A, 0);
1649 pdev = &ssc1_device;
1650 if (flags & ATMEL_SSC_RF)
1651 pin_mask |= (1 << 0); /* RF */
1652 if (flags & ATMEL_SSC_RK)
1653 pin_mask |= (1 << 1); /* RK */
1654 if (flags & ATMEL_SSC_TK)
1655 pin_mask |= (1 << 2); /* TK */
1656 if (flags & ATMEL_SSC_TF)
1657 pin_mask |= (1 << 3); /* TF */
1658 if (flags & ATMEL_SSC_TD)
1659 pin_mask |= (1 << 4); /* TD */
1660 if (flags & ATMEL_SSC_RD)
1661 pin_mask |= (1 << 5); /* RD */
1664 select_peripheral(PIOA, pin_mask, PERIPH_B, 0);
1668 pdev = &ssc2_device;
1669 if (flags & ATMEL_SSC_TD)
1670 pin_mask |= (1 << 13); /* TD */
1671 if (flags & ATMEL_SSC_RD)
1672 pin_mask |= (1 << 14); /* RD */
1673 if (flags & ATMEL_SSC_TK)
1674 pin_mask |= (1 << 15); /* TK */
1675 if (flags & ATMEL_SSC_TF)
1676 pin_mask |= (1 << 16); /* TF */
1677 if (flags & ATMEL_SSC_RF)
1678 pin_mask |= (1 << 17); /* RF */
1679 if (flags & ATMEL_SSC_RK)
1680 pin_mask |= (1 << 18); /* RK */
1683 select_peripheral(PIOB, pin_mask, PERIPH_A, 0);
1690 platform_device_register(pdev);
1694 /* --------------------------------------------------------------------
1695 * USB Device Controller
1696 * -------------------------------------------------------------------- */
1697 static struct resource usba0_resource[] __initdata = {
1699 .start = 0xff300000,
1701 .flags = IORESOURCE_MEM,
1703 .start = 0xfff03000,
1705 .flags = IORESOURCE_MEM,
1709 static struct clk usba0_pclk = {
1712 .mode = pbb_clk_mode,
1713 .get_rate = pbb_clk_get_rate,
1716 static struct clk usba0_hclk = {
1719 .mode = hsb_clk_mode,
1720 .get_rate = hsb_clk_get_rate,
1724 #define EP(nam, idx, maxpkt, maxbk, dma, isoc) \
1728 .fifo_size = maxpkt, \
1729 .nr_banks = maxbk, \
1734 static struct usba_ep_data at32_usba_ep[] __initdata = {
1735 EP("ep0", 0, 64, 1, 0, 0),
1736 EP("ep1", 1, 512, 2, 1, 1),
1737 EP("ep2", 2, 512, 2, 1, 1),
1738 EP("ep3-int", 3, 64, 3, 1, 0),
1739 EP("ep4-int", 4, 64, 3, 1, 0),
1740 EP("ep5", 5, 1024, 3, 1, 1),
1741 EP("ep6", 6, 1024, 3, 1, 1),
1746 struct platform_device *__init
1747 at32_add_device_usba(unsigned int id, struct usba_platform_data *data)
1750 * pdata doesn't have room for any endpoints, so we need to
1751 * append room for the ones we need right after it.
1754 struct usba_platform_data pdata;
1755 struct usba_ep_data ep[7];
1757 struct platform_device *pdev;
1762 pdev = platform_device_alloc("atmel_usba_udc", 0);
1766 if (platform_device_add_resources(pdev, usba0_resource,
1767 ARRAY_SIZE(usba0_resource)))
1771 usba_data.pdata.vbus_pin = data->vbus_pin;
1773 usba_data.pdata.vbus_pin = -EINVAL;
1775 data = &usba_data.pdata;
1776 data->num_ep = ARRAY_SIZE(at32_usba_ep);
1777 memcpy(data->ep, at32_usba_ep, sizeof(at32_usba_ep));
1779 if (platform_device_add_data(pdev, data, sizeof(usba_data)))
1782 if (gpio_is_valid(data->vbus_pin))
1783 at32_select_gpio(data->vbus_pin, 0);
1785 usba0_pclk.dev = &pdev->dev;
1786 usba0_hclk.dev = &pdev->dev;
1788 platform_device_add(pdev);
1793 platform_device_put(pdev);
1797 /* --------------------------------------------------------------------
1798 * IDE / CompactFlash
1799 * -------------------------------------------------------------------- */
1800 #if defined(CONFIG_CPU_AT32AP7000) || defined(CONFIG_CPU_AT32AP7001)
1801 static struct resource at32_smc_cs4_resource[] __initdata = {
1803 .start = 0x04000000,
1805 .flags = IORESOURCE_MEM,
1807 IRQ(~0UL), /* Magic IRQ will be overridden */
1809 static struct resource at32_smc_cs5_resource[] __initdata = {
1811 .start = 0x20000000,
1813 .flags = IORESOURCE_MEM,
1815 IRQ(~0UL), /* Magic IRQ will be overridden */
1818 static int __init at32_init_ide_or_cf(struct platform_device *pdev,
1819 unsigned int cs, unsigned int extint)
1821 static unsigned int extint_pin_map[4] __initdata = {
1827 static bool common_pins_initialized __initdata = false;
1828 unsigned int extint_pin;
1832 if (extint >= ARRAY_SIZE(extint_pin_map))
1834 extint_pin = extint_pin_map[extint];
1838 ret = platform_device_add_resources(pdev,
1839 at32_smc_cs4_resource,
1840 ARRAY_SIZE(at32_smc_cs4_resource));
1845 select_peripheral(PIOE, (1 << 21), PERIPH_A, 0);
1846 hmatrix_sfr_set_bits(HMATRIX_SLAVE_EBI, HMATRIX_EBI_CF0_ENABLE);
1849 ret = platform_device_add_resources(pdev,
1850 at32_smc_cs5_resource,
1851 ARRAY_SIZE(at32_smc_cs5_resource));
1856 select_peripheral(PIOE, (1 << 22), PERIPH_A, 0);
1857 hmatrix_sfr_set_bits(HMATRIX_SLAVE_EBI, HMATRIX_EBI_CF1_ENABLE);
1863 if (!common_pins_initialized) {
1864 pin_mask = (1 << 19); /* CFCE1 -> CS0_N */
1865 pin_mask |= (1 << 20); /* CFCE2 -> CS1_N */
1866 pin_mask |= (1 << 23); /* CFRNW -> DIR */
1867 pin_mask |= (1 << 24); /* NWAIT <- IORDY */
1869 select_peripheral(PIOE, pin_mask, PERIPH_A, 0);
1871 common_pins_initialized = true;
1874 select_peripheral(PIOB, extint_pin, PERIPH_A, AT32_GPIOF_DEGLITCH);
1876 pdev->resource[1].start = EIM_IRQ_BASE + extint;
1877 pdev->resource[1].end = pdev->resource[1].start;
1882 struct platform_device *__init
1883 at32_add_device_ide(unsigned int id, unsigned int extint,
1884 struct ide_platform_data *data)
1886 struct platform_device *pdev;
1888 pdev = platform_device_alloc("at32_ide", id);
1892 if (platform_device_add_data(pdev, data,
1893 sizeof(struct ide_platform_data)))
1896 if (at32_init_ide_or_cf(pdev, data->cs, extint))
1899 platform_device_add(pdev);
1903 platform_device_put(pdev);
1907 struct platform_device *__init
1908 at32_add_device_cf(unsigned int id, unsigned int extint,
1909 struct cf_platform_data *data)
1911 struct platform_device *pdev;
1913 pdev = platform_device_alloc("at32_cf", id);
1917 if (platform_device_add_data(pdev, data,
1918 sizeof(struct cf_platform_data)))
1921 if (at32_init_ide_or_cf(pdev, data->cs, extint))
1924 if (gpio_is_valid(data->detect_pin))
1925 at32_select_gpio(data->detect_pin, AT32_GPIOF_DEGLITCH);
1926 if (gpio_is_valid(data->reset_pin))
1927 at32_select_gpio(data->reset_pin, 0);
1928 if (gpio_is_valid(data->vcc_pin))
1929 at32_select_gpio(data->vcc_pin, 0);
1930 /* READY is used as extint, so we can't select it as gpio */
1932 platform_device_add(pdev);
1936 platform_device_put(pdev);
1941 /* --------------------------------------------------------------------
1942 * NAND Flash / SmartMedia
1943 * -------------------------------------------------------------------- */
1944 static struct resource smc_cs3_resource[] __initdata = {
1946 .start = 0x0c000000,
1948 .flags = IORESOURCE_MEM,
1950 .start = 0xfff03c00,
1952 .flags = IORESOURCE_MEM,
1956 struct platform_device *__init
1957 at32_add_device_nand(unsigned int id, struct atmel_nand_data *data)
1959 struct platform_device *pdev;
1961 if (id != 0 || !data)
1964 pdev = platform_device_alloc("atmel_nand", id);
1968 if (platform_device_add_resources(pdev, smc_cs3_resource,
1969 ARRAY_SIZE(smc_cs3_resource)))
1972 if (platform_device_add_data(pdev, data,
1973 sizeof(struct atmel_nand_data)))
1976 hmatrix_sfr_set_bits(HMATRIX_SLAVE_EBI, HMATRIX_EBI_NAND_ENABLE);
1977 if (data->enable_pin)
1978 at32_select_gpio(data->enable_pin,
1979 AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH);
1981 at32_select_gpio(data->rdy_pin, 0);
1983 at32_select_gpio(data->det_pin, 0);
1985 platform_device_add(pdev);
1989 platform_device_put(pdev);
1993 /* --------------------------------------------------------------------
1995 * -------------------------------------------------------------------- */
1996 static struct resource atmel_ac97c0_resource[] __initdata = {
2000 static struct clk atmel_ac97c0_pclk = {
2003 .mode = pbb_clk_mode,
2004 .get_rate = pbb_clk_get_rate,
2008 struct platform_device *__init
2009 at32_add_device_ac97c(unsigned int id, struct ac97c_platform_data *data,
2012 struct platform_device *pdev;
2013 struct dw_dma_slave *rx_dws;
2014 struct dw_dma_slave *tx_dws;
2015 struct ac97c_platform_data _data;
2021 pdev = platform_device_alloc("atmel_ac97c", id);
2025 if (platform_device_add_resources(pdev, atmel_ac97c0_resource,
2026 ARRAY_SIZE(atmel_ac97c0_resource)))
2027 goto out_free_resources;
2031 memset(data, 0, sizeof(struct ac97c_platform_data));
2032 data->reset_pin = -ENODEV;
2035 rx_dws = &data->rx_dws;
2036 tx_dws = &data->tx_dws;
2038 /* Check if DMA slave interface for capture should be configured. */
2039 if (flags & AC97C_CAPTURE) {
2040 rx_dws->dma_dev = &dw_dmac0_device.dev;
2041 rx_dws->reg_width = DW_DMA_SLAVE_WIDTH_16BIT;
2042 rx_dws->cfg_hi = DWC_CFGH_SRC_PER(3);
2043 rx_dws->cfg_lo &= ~(DWC_CFGL_HS_DST_POL | DWC_CFGL_HS_SRC_POL);
2046 /* Check if DMA slave interface for playback should be configured. */
2047 if (flags & AC97C_PLAYBACK) {
2048 tx_dws->dma_dev = &dw_dmac0_device.dev;
2049 tx_dws->reg_width = DW_DMA_SLAVE_WIDTH_16BIT;
2050 tx_dws->cfg_hi = DWC_CFGH_DST_PER(4);
2051 tx_dws->cfg_lo &= ~(DWC_CFGL_HS_DST_POL | DWC_CFGL_HS_SRC_POL);
2054 if (platform_device_add_data(pdev, data,
2055 sizeof(struct ac97c_platform_data)))
2056 goto out_free_resources;
2058 /* SDO | SYNC | SCLK | SDI */
2059 pin_mask = (1 << 20) | (1 << 21) | (1 << 22) | (1 << 23);
2061 select_peripheral(PIOB, pin_mask, PERIPH_B, 0);
2063 if (gpio_is_valid(data->reset_pin))
2064 at32_select_gpio(data->reset_pin, AT32_GPIOF_OUTPUT
2067 atmel_ac97c0_pclk.dev = &pdev->dev;
2069 platform_device_add(pdev);
2073 platform_device_put(pdev);
2077 /* --------------------------------------------------------------------
2079 * -------------------------------------------------------------------- */
2080 static struct resource abdac0_resource[] __initdata = {
2084 static struct clk abdac0_pclk = {
2087 .mode = pbb_clk_mode,
2088 .get_rate = pbb_clk_get_rate,
2091 static struct clk abdac0_sample_clk = {
2092 .name = "sample_clk",
2093 .mode = genclk_mode,
2094 .get_rate = genclk_get_rate,
2095 .set_rate = genclk_set_rate,
2096 .set_parent = genclk_set_parent,
2100 struct platform_device *__init
2101 at32_add_device_abdac(unsigned int id, struct atmel_abdac_pdata *data)
2103 struct platform_device *pdev;
2104 struct dw_dma_slave *dws;
2107 if (id != 0 || !data)
2110 pdev = platform_device_alloc("atmel_abdac", id);
2114 if (platform_device_add_resources(pdev, abdac0_resource,
2115 ARRAY_SIZE(abdac0_resource)))
2116 goto out_free_resources;
2120 dws->dma_dev = &dw_dmac0_device.dev;
2121 dws->reg_width = DW_DMA_SLAVE_WIDTH_32BIT;
2122 dws->cfg_hi = DWC_CFGH_DST_PER(2);
2123 dws->cfg_lo &= ~(DWC_CFGL_HS_DST_POL | DWC_CFGL_HS_SRC_POL);
2125 if (platform_device_add_data(pdev, data,
2126 sizeof(struct atmel_abdac_pdata)))
2127 goto out_free_resources;
2129 pin_mask = (1 << 20) | (1 << 22); /* DATA1 & DATAN1 */
2130 pin_mask |= (1 << 21) | (1 << 23); /* DATA0 & DATAN0 */
2132 select_peripheral(PIOB, pin_mask, PERIPH_A, 0);
2134 abdac0_pclk.dev = &pdev->dev;
2135 abdac0_sample_clk.dev = &pdev->dev;
2137 platform_device_add(pdev);
2141 platform_device_put(pdev);
2145 /* --------------------------------------------------------------------
2147 * -------------------------------------------------------------------- */
2148 static struct clk gclk0 = {
2150 .mode = genclk_mode,
2151 .get_rate = genclk_get_rate,
2152 .set_rate = genclk_set_rate,
2153 .set_parent = genclk_set_parent,
2156 static struct clk gclk1 = {
2158 .mode = genclk_mode,
2159 .get_rate = genclk_get_rate,
2160 .set_rate = genclk_set_rate,
2161 .set_parent = genclk_set_parent,
2164 static struct clk gclk2 = {
2166 .mode = genclk_mode,
2167 .get_rate = genclk_get_rate,
2168 .set_rate = genclk_set_rate,
2169 .set_parent = genclk_set_parent,
2172 static struct clk gclk3 = {
2174 .mode = genclk_mode,
2175 .get_rate = genclk_get_rate,
2176 .set_rate = genclk_set_rate,
2177 .set_parent = genclk_set_parent,
2180 static struct clk gclk4 = {
2182 .mode = genclk_mode,
2183 .get_rate = genclk_get_rate,
2184 .set_rate = genclk_set_rate,
2185 .set_parent = genclk_set_parent,
2189 static __initdata struct clk *init_clocks[] = {
2220 &atmel_usart0_usart,
2221 &atmel_usart1_usart,
2222 &atmel_usart2_usart,
2223 &atmel_usart3_usart,
2225 #if defined(CONFIG_CPU_AT32AP7000)
2231 &atmel_spi0_spi_clk,
2232 &atmel_spi1_spi_clk,
2235 #if defined(CONFIG_CPU_AT32AP7000) || defined(CONFIG_CPU_AT32AP7002)
2237 &atmel_lcdfb0_pixclk,
2254 void __init setup_platform(void)
2256 u32 cpu_mask = 0, hsb_mask = 0, pba_mask = 0, pbb_mask = 0;
2259 if (pm_readl(MCCTRL) & PM_BIT(PLLSEL)) {
2261 cpu_clk.parent = &pll0;
2264 cpu_clk.parent = &osc0;
2267 if (pm_readl(PLL0) & PM_BIT(PLLOSC))
2268 pll0.parent = &osc1;
2269 if (pm_readl(PLL1) & PM_BIT(PLLOSC))
2270 pll1.parent = &osc1;
2272 genclk_init_parent(&gclk0);
2273 genclk_init_parent(&gclk1);
2274 genclk_init_parent(&gclk2);
2275 genclk_init_parent(&gclk3);
2276 genclk_init_parent(&gclk4);
2277 #if defined(CONFIG_CPU_AT32AP7000) || defined(CONFIG_CPU_AT32AP7002)
2278 genclk_init_parent(&atmel_lcdfb0_pixclk);
2280 genclk_init_parent(&abdac0_sample_clk);
2283 * Build initial dynamic clock list by registering all clocks
2285 * At the same time, turn on all clocks that have at least one
2286 * user already, and turn off everything else. We only do this
2287 * for module clocks, and even though it isn't particularly
2288 * pretty to check the address of the mode function, it should
2291 for (i = 0; i < ARRAY_SIZE(init_clocks); i++) {
2292 struct clk *clk = init_clocks[i];
2294 /* first, register clock */
2295 at32_clk_register(clk);
2297 if (clk->users == 0)
2300 if (clk->mode == &cpu_clk_mode)
2301 cpu_mask |= 1 << clk->index;
2302 else if (clk->mode == &hsb_clk_mode)
2303 hsb_mask |= 1 << clk->index;
2304 else if (clk->mode == &pba_clk_mode)
2305 pba_mask |= 1 << clk->index;
2306 else if (clk->mode == &pbb_clk_mode)
2307 pbb_mask |= 1 << clk->index;
2310 pm_writel(CPU_MASK, cpu_mask);
2311 pm_writel(HSB_MASK, hsb_mask);
2312 pm_writel(PBA_MASK, pba_mask);
2313 pm_writel(PBB_MASK, pbb_mask);
2315 /* Initialize the port muxes */
2316 at32_init_pio(&pio0_device);
2317 at32_init_pio(&pio1_device);
2318 at32_init_pio(&pio2_device);
2319 at32_init_pio(&pio3_device);
2320 at32_init_pio(&pio4_device);
2323 struct gen_pool *sram_pool;
2325 static int __init sram_init(void)
2327 struct gen_pool *pool;
2329 /* 1KiB granularity */
2330 pool = gen_pool_create(10, -1);
2334 if (gen_pool_add(pool, 0x24000000, 0x8000, -1))
2341 gen_pool_destroy(pool);
2343 pr_err("Failed to create SRAM pool\n");
2346 core_initcall(sram_init);