diff options
Diffstat (limited to 'kernel/arch/avr32/mach-at32ap/at32ap700x.c')
| -rw-r--r-- | kernel/arch/avr32/mach-at32ap/at32ap700x.c | 2360 |
1 files changed, 2360 insertions, 0 deletions
diff --git a/kernel/arch/avr32/mach-at32ap/at32ap700x.c b/kernel/arch/avr32/mach-at32ap/at32ap700x.c new file mode 100644 index 000000000..1d8b14728 --- /dev/null +++ b/kernel/arch/avr32/mach-at32ap/at32ap700x.c @@ -0,0 +1,2360 @@ +/* + * Copyright (C) 2005-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/clk.h> +#include <linux/delay.h> +#include <linux/platform_data/dma-dw.h> +#include <linux/fb.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/dma-mapping.h> +#include <linux/slab.h> +#include <linux/gpio.h> +#include <linux/spi/spi.h> +#include <linux/usb/atmel_usba_udc.h> + +#include <linux/platform_data/mmc-atmel-mci.h> +#include <linux/atmel-mci.h> + +#include <asm/io.h> +#include <asm/irq.h> + +#include <mach/at32ap700x.h> +#include <mach/board.h> +#include <mach/hmatrix.h> +#include <mach/portmux.h> +#include <mach/sram.h> + +#include <sound/atmel-abdac.h> +#include <sound/atmel-ac97c.h> + +#include <video/atmel_lcdc.h> + +#include "clock.h" +#include "pio.h" +#include "pm.h" + + +#define PBMEM(base) \ + { \ + .start = base, \ + .end = base + 0x3ff, \ + .flags = IORESOURCE_MEM, \ + } +#define IRQ(num) \ + { \ + .start = num, \ + .end = num, \ + .flags = IORESOURCE_IRQ, \ + } +#define NAMED_IRQ(num, _name) \ + { \ + .start = num, \ + .end = num, \ + .name = _name, \ + .flags = IORESOURCE_IRQ, \ + } + +/* REVISIT these assume *every* device supports DMA, but several + * don't ... tc, smc, pio, rtc, watchdog, pwm, ps2, and more. + */ +#define DEFINE_DEV(_name, _id) \ +static u64 _name##_id##_dma_mask = DMA_BIT_MASK(32); \ +static struct platform_device _name##_id##_device = { \ + .name = #_name, \ + .id = _id, \ + .dev = { \ + .dma_mask = &_name##_id##_dma_mask, \ + .coherent_dma_mask = DMA_BIT_MASK(32), \ + }, \ + .resource = _name##_id##_resource, \ + .num_resources = ARRAY_SIZE(_name##_id##_resource), \ +} +#define DEFINE_DEV_DATA(_name, _id) \ +static u64 _name##_id##_dma_mask = DMA_BIT_MASK(32); \ +static struct platform_device _name##_id##_device = { \ + .name = #_name, \ + .id = _id, \ + .dev = { \ + .dma_mask = &_name##_id##_dma_mask, \ + .platform_data = &_name##_id##_data, \ + .coherent_dma_mask = DMA_BIT_MASK(32), \ + }, \ + .resource = _name##_id##_resource, \ + .num_resources = ARRAY_SIZE(_name##_id##_resource), \ +} + +#define select_peripheral(port, pin_mask, periph, flags) \ + at32_select_periph(GPIO_##port##_BASE, pin_mask, \ + GPIO_##periph, flags) + +#define DEV_CLK(_name, devname, bus, _index) \ +static struct clk devname##_##_name = { \ + .name = #_name, \ + .dev = &devname##_device.dev, \ + .parent = &bus##_clk, \ + .mode = bus##_clk_mode, \ + .get_rate = bus##_clk_get_rate, \ + .index = _index, \ +} + +static DEFINE_SPINLOCK(pm_lock); + +static struct clk osc0; +static struct clk osc1; + +static unsigned long osc_get_rate(struct clk *clk) +{ + return at32_board_osc_rates[clk->index]; +} + +static unsigned long pll_get_rate(struct clk *clk, unsigned long control) +{ + unsigned long div, mul, rate; + + div = PM_BFEXT(PLLDIV, control) + 1; + mul = PM_BFEXT(PLLMUL, control) + 1; + + rate = clk->parent->get_rate(clk->parent); + rate = (rate + div / 2) / div; + rate *= mul; + + return rate; +} + +static long pll_set_rate(struct clk *clk, unsigned long rate, + u32 *pll_ctrl) +{ + unsigned long mul; + unsigned long mul_best_fit = 0; + unsigned long div; + unsigned long div_min; + unsigned long div_max; + unsigned long div_best_fit = 0; + unsigned long base; + unsigned long pll_in; + unsigned long actual = 0; + unsigned long rate_error; + unsigned long rate_error_prev = ~0UL; + u32 ctrl; + + /* Rate must be between 80 MHz and 200 Mhz. */ + if (rate < 80000000UL || rate > 200000000UL) + return -EINVAL; + + ctrl = PM_BF(PLLOPT, 4); + base = clk->parent->get_rate(clk->parent); + + /* PLL input frequency must be between 6 MHz and 32 MHz. */ + div_min = DIV_ROUND_UP(base, 32000000UL); + div_max = base / 6000000UL; + + if (div_max < div_min) + return -EINVAL; + + for (div = div_min; div <= div_max; div++) { + pll_in = (base + div / 2) / div; + mul = (rate + pll_in / 2) / pll_in; + + if (mul == 0) + continue; + + actual = pll_in * mul; + rate_error = abs(actual - rate); + + if (rate_error < rate_error_prev) { + mul_best_fit = mul; + div_best_fit = div; + rate_error_prev = rate_error; + } + + if (rate_error == 0) + break; + } + + if (div_best_fit == 0) + return -EINVAL; + + ctrl |= PM_BF(PLLMUL, mul_best_fit - 1); + ctrl |= PM_BF(PLLDIV, div_best_fit - 1); + ctrl |= PM_BF(PLLCOUNT, 16); + + if (clk->parent == &osc1) + ctrl |= PM_BIT(PLLOSC); + + *pll_ctrl = ctrl; + + return actual; +} + +static unsigned long pll0_get_rate(struct clk *clk) +{ + u32 control; + + control = pm_readl(PLL0); + + return pll_get_rate(clk, control); +} + +static void pll1_mode(struct clk *clk, int enabled) +{ + unsigned long timeout; + u32 status; + u32 ctrl; + + ctrl = pm_readl(PLL1); + + if (enabled) { + if (!PM_BFEXT(PLLMUL, ctrl) && !PM_BFEXT(PLLDIV, ctrl)) { + pr_debug("clk %s: failed to enable, rate not set\n", + clk->name); + return; + } + + ctrl |= PM_BIT(PLLEN); + pm_writel(PLL1, ctrl); + + /* Wait for PLL lock. */ + for (timeout = 10000; timeout; timeout--) { + status = pm_readl(ISR); + if (status & PM_BIT(LOCK1)) + break; + udelay(10); + } + + if (!(status & PM_BIT(LOCK1))) + printk(KERN_ERR "clk %s: timeout waiting for lock\n", + clk->name); + } else { + ctrl &= ~PM_BIT(PLLEN); + pm_writel(PLL1, ctrl); + } +} + +static unsigned long pll1_get_rate(struct clk *clk) +{ + u32 control; + + control = pm_readl(PLL1); + + return pll_get_rate(clk, control); +} + +static long pll1_set_rate(struct clk *clk, unsigned long rate, int apply) +{ + u32 ctrl = 0; + unsigned long actual_rate; + + actual_rate = pll_set_rate(clk, rate, &ctrl); + + if (apply) { + if (actual_rate != rate) + return -EINVAL; + if (clk->users > 0) + return -EBUSY; + pr_debug(KERN_INFO "clk %s: new rate %lu (actual rate %lu)\n", + clk->name, rate, actual_rate); + pm_writel(PLL1, ctrl); + } + + return actual_rate; +} + +static int pll1_set_parent(struct clk *clk, struct clk *parent) +{ + u32 ctrl; + + if (clk->users > 0) + return -EBUSY; + + ctrl = pm_readl(PLL1); + WARN_ON(ctrl & PM_BIT(PLLEN)); + + if (parent == &osc0) + ctrl &= ~PM_BIT(PLLOSC); + else if (parent == &osc1) + ctrl |= PM_BIT(PLLOSC); + else + return -EINVAL; + + pm_writel(PLL1, ctrl); + clk->parent = parent; + + return 0; +} + +/* + * The AT32AP7000 has five primary clock sources: One 32kHz + * oscillator, two crystal oscillators and two PLLs. + */ +static struct clk osc32k = { + .name = "osc32k", + .get_rate = osc_get_rate, + .users = 1, + .index = 0, +}; +static struct clk osc0 = { + .name = "osc0", + .get_rate = osc_get_rate, + .users = 1, + .index = 1, +}; +static struct clk osc1 = { + .name = "osc1", + .get_rate = osc_get_rate, + .index = 2, +}; +static struct clk pll0 = { + .name = "pll0", + .get_rate = pll0_get_rate, + .parent = &osc0, +}; +static struct clk pll1 = { + .name = "pll1", + .mode = pll1_mode, + .get_rate = pll1_get_rate, + .set_rate = pll1_set_rate, + .set_parent = pll1_set_parent, + .parent = &osc0, +}; + +/* + * The main clock can be either osc0 or pll0. The boot loader may + * have chosen one for us, so we don't really know which one until we + * have a look at the SM. + */ +static struct clk *main_clock; + +/* + * Synchronous clocks are generated from the main clock. The clocks + * must satisfy the constraint + * fCPU >= fHSB >= fPB + * i.e. each clock must not be faster than its parent. + */ +static unsigned long bus_clk_get_rate(struct clk *clk, unsigned int shift) +{ + return main_clock->get_rate(main_clock) >> shift; +}; + +static void cpu_clk_mode(struct clk *clk, int enabled) +{ + unsigned long flags; + u32 mask; + + spin_lock_irqsave(&pm_lock, flags); + mask = pm_readl(CPU_MASK); + if (enabled) + mask |= 1 << clk->index; + else + mask &= ~(1 << clk->index); + pm_writel(CPU_MASK, mask); + spin_unlock_irqrestore(&pm_lock, flags); +} + +static unsigned long cpu_clk_get_rate(struct clk *clk) +{ + unsigned long cksel, shift = 0; + + cksel = pm_readl(CKSEL); + if (cksel & PM_BIT(CPUDIV)) + shift = PM_BFEXT(CPUSEL, cksel) + 1; + + return bus_clk_get_rate(clk, shift); +} + +static long cpu_clk_set_rate(struct clk *clk, unsigned long rate, int apply) +{ + u32 control; + unsigned long parent_rate, child_div, actual_rate, div; + + parent_rate = clk->parent->get_rate(clk->parent); + control = pm_readl(CKSEL); + + if (control & PM_BIT(HSBDIV)) + child_div = 1 << (PM_BFEXT(HSBSEL, control) + 1); + else + child_div = 1; + + if (rate > 3 * (parent_rate / 4) || child_div == 1) { + actual_rate = parent_rate; + control &= ~PM_BIT(CPUDIV); + } else { + unsigned int cpusel; + div = (parent_rate + rate / 2) / rate; + if (div > child_div) + div = child_div; + cpusel = (div > 1) ? (fls(div) - 2) : 0; + control = PM_BIT(CPUDIV) | PM_BFINS(CPUSEL, cpusel, control); + actual_rate = parent_rate / (1 << (cpusel + 1)); + } + + pr_debug("clk %s: new rate %lu (actual rate %lu)\n", + clk->name, rate, actual_rate); + + if (apply) + pm_writel(CKSEL, control); + + return actual_rate; +} + +static void hsb_clk_mode(struct clk *clk, int enabled) +{ + unsigned long flags; + u32 mask; + + spin_lock_irqsave(&pm_lock, flags); + mask = pm_readl(HSB_MASK); + if (enabled) + mask |= 1 << clk->index; + else + mask &= ~(1 << clk->index); + pm_writel(HSB_MASK, mask); + spin_unlock_irqrestore(&pm_lock, flags); +} + +static unsigned long hsb_clk_get_rate(struct clk *clk) +{ + unsigned long cksel, shift = 0; + + cksel = pm_readl(CKSEL); + if (cksel & PM_BIT(HSBDIV)) + shift = PM_BFEXT(HSBSEL, cksel) + 1; + + return bus_clk_get_rate(clk, shift); +} + +void pba_clk_mode(struct clk *clk, int enabled) +{ + unsigned long flags; + u32 mask; + + spin_lock_irqsave(&pm_lock, flags); + mask = pm_readl(PBA_MASK); + if (enabled) + mask |= 1 << clk->index; + else + mask &= ~(1 << clk->index); + pm_writel(PBA_MASK, mask); + spin_unlock_irqrestore(&pm_lock, flags); +} + +unsigned long pba_clk_get_rate(struct clk *clk) +{ + unsigned long cksel, shift = 0; + + cksel = pm_readl(CKSEL); + if (cksel & PM_BIT(PBADIV)) + shift = PM_BFEXT(PBASEL, cksel) + 1; + + return bus_clk_get_rate(clk, shift); +} + +static void pbb_clk_mode(struct clk *clk, int enabled) +{ + unsigned long flags; + u32 mask; + + spin_lock_irqsave(&pm_lock, flags); + mask = pm_readl(PBB_MASK); + if (enabled) + mask |= 1 << clk->index; + else + mask &= ~(1 << clk->index); + pm_writel(PBB_MASK, mask); + spin_unlock_irqrestore(&pm_lock, flags); +} + +static unsigned long pbb_clk_get_rate(struct clk *clk) +{ + unsigned long cksel, shift = 0; + + cksel = pm_readl(CKSEL); + if (cksel & PM_BIT(PBBDIV)) + shift = PM_BFEXT(PBBSEL, cksel) + 1; + + return bus_clk_get_rate(clk, shift); +} + +static struct clk cpu_clk = { + .name = "cpu", + .get_rate = cpu_clk_get_rate, + .set_rate = cpu_clk_set_rate, + .users = 1, +}; +static struct clk hsb_clk = { + .name = "hsb", + .parent = &cpu_clk, + .get_rate = hsb_clk_get_rate, +}; +static struct clk pba_clk = { + .name = "pba", + .parent = &hsb_clk, + .mode = hsb_clk_mode, + .get_rate = pba_clk_get_rate, + .index = 1, +}; +static struct clk pbb_clk = { + .name = "pbb", + .parent = &hsb_clk, + .mode = hsb_clk_mode, + .get_rate = pbb_clk_get_rate, + .users = 1, + .index = 2, +}; + +/* -------------------------------------------------------------------- + * Generic Clock operations + * -------------------------------------------------------------------- */ + +static void genclk_mode(struct clk *clk, int enabled) +{ + u32 control; + + control = pm_readl(GCCTRL(clk->index)); + if (enabled) + control |= PM_BIT(CEN); + else + control &= ~PM_BIT(CEN); + pm_writel(GCCTRL(clk->index), control); +} + +static unsigned long genclk_get_rate(struct clk *clk) +{ + u32 control; + unsigned long div = 1; + + control = pm_readl(GCCTRL(clk->index)); + if (control & PM_BIT(DIVEN)) + div = 2 * (PM_BFEXT(DIV, control) + 1); + + return clk->parent->get_rate(clk->parent) / div; +} + +static long genclk_set_rate(struct clk *clk, unsigned long rate, int apply) +{ + u32 control; + unsigned long parent_rate, actual_rate, div; + + parent_rate = clk->parent->get_rate(clk->parent); + control = pm_readl(GCCTRL(clk->index)); + + if (rate > 3 * parent_rate / 4) { + actual_rate = parent_rate; + control &= ~PM_BIT(DIVEN); + } else { + div = (parent_rate + rate) / (2 * rate) - 1; + control = PM_BFINS(DIV, div, control) | PM_BIT(DIVEN); + actual_rate = parent_rate / (2 * (div + 1)); + } + + dev_dbg(clk->dev, "clk %s: new rate %lu (actual rate %lu)\n", + clk->name, rate, actual_rate); + + if (apply) + pm_writel(GCCTRL(clk->index), control); + + return actual_rate; +} + +int genclk_set_parent(struct clk *clk, struct clk *parent) +{ + u32 control; + + dev_dbg(clk->dev, "clk %s: new parent %s (was %s)\n", + clk->name, parent->name, clk->parent->name); + + control = pm_readl(GCCTRL(clk->index)); + + if (parent == &osc1 || parent == &pll1) + control |= PM_BIT(OSCSEL); + else if (parent == &osc0 || parent == &pll0) + control &= ~PM_BIT(OSCSEL); + else + return -EINVAL; + + if (parent == &pll0 || parent == &pll1) + control |= PM_BIT(PLLSEL); + else + control &= ~PM_BIT(PLLSEL); + + pm_writel(GCCTRL(clk->index), control); + clk->parent = parent; + + return 0; +} + +static void __init genclk_init_parent(struct clk *clk) +{ + u32 control; + struct clk *parent; + + BUG_ON(clk->index > 7); + + control = pm_readl(GCCTRL(clk->index)); + if (control & PM_BIT(OSCSEL)) + parent = (control & PM_BIT(PLLSEL)) ? &pll1 : &osc1; + else + parent = (control & PM_BIT(PLLSEL)) ? &pll0 : &osc0; + + clk->parent = parent; +} + +static struct dw_dma_platform_data dw_dmac0_data = { + .nr_channels = 3, + .block_size = 4095U, + .nr_masters = 2, + .data_width = { 2, 2 }, +}; + +static struct resource dw_dmac0_resource[] = { + PBMEM(0xff200000), + IRQ(2), +}; +DEFINE_DEV_DATA(dw_dmac, 0); +DEV_CLK(hclk, dw_dmac0, hsb, 10); + +/* -------------------------------------------------------------------- + * System peripherals + * -------------------------------------------------------------------- */ +static struct resource at32_pm0_resource[] = { + { + .start = 0xfff00000, + .end = 0xfff0007f, + .flags = IORESOURCE_MEM, + }, + IRQ(20), +}; + +static struct resource at32ap700x_rtc0_resource[] = { + { + .start = 0xfff00080, + .end = 0xfff000af, + .flags = IORESOURCE_MEM, + }, + IRQ(21), +}; + +static struct resource at32_wdt0_resource[] = { + { + .start = 0xfff000b0, + .end = 0xfff000cf, + .flags = IORESOURCE_MEM, + }, +}; + +static struct resource at32_eic0_resource[] = { + { + .start = 0xfff00100, + .end = 0xfff0013f, + .flags = IORESOURCE_MEM, + }, + IRQ(19), +}; + +DEFINE_DEV(at32_pm, 0); +DEFINE_DEV(at32ap700x_rtc, 0); +DEFINE_DEV(at32_wdt, 0); +DEFINE_DEV(at32_eic, 0); + +/* + * Peripheral clock for PM, RTC, WDT and EIC. PM will ensure that this + * is always running. + */ +static struct clk at32_pm_pclk = { + .name = "pclk", + .dev = &at32_pm0_device.dev, + .parent = &pbb_clk, + .mode = pbb_clk_mode, + .get_rate = pbb_clk_get_rate, + .users = 1, + .index = 0, +}; + +static struct resource intc0_resource[] = { + PBMEM(0xfff00400), +}; +struct platform_device at32_intc0_device = { + .name = "intc", + .id = 0, + .resource = intc0_resource, + .num_resources = ARRAY_SIZE(intc0_resource), +}; +DEV_CLK(pclk, at32_intc0, pbb, 1); + +static struct clk ebi_clk = { + .name = "ebi", + .parent = &hsb_clk, + .mode = hsb_clk_mode, + .get_rate = hsb_clk_get_rate, + .users = 1, +}; +static struct clk hramc_clk = { + .name = "hramc", + .parent = &hsb_clk, + .mode = hsb_clk_mode, + .get_rate = hsb_clk_get_rate, + .users = 1, + .index = 3, +}; +static struct clk sdramc_clk = { + .name = "sdramc_clk", + .parent = &pbb_clk, + .mode = pbb_clk_mode, + .get_rate = pbb_clk_get_rate, + .users = 1, + .index = 14, +}; + +static struct resource smc0_resource[] = { + PBMEM(0xfff03400), +}; +DEFINE_DEV(smc, 0); +DEV_CLK(pclk, smc0, pbb, 13); +DEV_CLK(mck, smc0, hsb, 0); + +static struct platform_device pdc_device = { + .name = "pdc", + .id = 0, +}; +DEV_CLK(hclk, pdc, hsb, 4); +DEV_CLK(pclk, pdc, pba, 16); + +static struct clk pico_clk = { + .name = "pico", + .parent = &cpu_clk, + .mode = cpu_clk_mode, + .get_rate = cpu_clk_get_rate, + .users = 1, +}; + +/* -------------------------------------------------------------------- + * HMATRIX + * -------------------------------------------------------------------- */ + +struct clk at32_hmatrix_clk = { + .name = "hmatrix_clk", + .parent = &pbb_clk, + .mode = pbb_clk_mode, + .get_rate = pbb_clk_get_rate, + .index = 2, + .users = 1, +}; + +/* + * Set bits in the HMATRIX Special Function Register (SFR) used by the + * External Bus Interface (EBI). This can be used to enable special + * features like CompactFlash support, NAND Flash support, etc. on + * certain chipselects. + */ +static inline void set_ebi_sfr_bits(u32 mask) +{ + hmatrix_sfr_set_bits(HMATRIX_SLAVE_EBI, mask); +} + +/* -------------------------------------------------------------------- + * Timer/Counter (TC) + * -------------------------------------------------------------------- */ + +static struct resource at32_tcb0_resource[] = { + PBMEM(0xfff00c00), + IRQ(22), +}; +static struct platform_device at32_tcb0_device = { + .name = "atmel_tcb", + .id = 0, + .resource = at32_tcb0_resource, + .num_resources = ARRAY_SIZE(at32_tcb0_resource), +}; +DEV_CLK(t0_clk, at32_tcb0, pbb, 3); + +static struct resource at32_tcb1_resource[] = { + PBMEM(0xfff01000), + IRQ(23), +}; +static struct platform_device at32_tcb1_device = { + .name = "atmel_tcb", + .id = 1, + .resource = at32_tcb1_resource, + .num_resources = ARRAY_SIZE(at32_tcb1_resource), +}; +DEV_CLK(t0_clk, at32_tcb1, pbb, 4); + +/* -------------------------------------------------------------------- + * PIO + * -------------------------------------------------------------------- */ + +static struct resource pio0_resource[] = { + PBMEM(0xffe02800), + IRQ(13), +}; +DEFINE_DEV(pio, 0); +DEV_CLK(mck, pio0, pba, 10); + +static struct resource pio1_resource[] = { + PBMEM(0xffe02c00), + IRQ(14), +}; +DEFINE_DEV(pio, 1); +DEV_CLK(mck, pio1, pba, 11); + +static struct resource pio2_resource[] = { + PBMEM(0xffe03000), + IRQ(15), +}; +DEFINE_DEV(pio, 2); +DEV_CLK(mck, pio2, pba, 12); + +static struct resource pio3_resource[] = { + PBMEM(0xffe03400), + IRQ(16), +}; +DEFINE_DEV(pio, 3); +DEV_CLK(mck, pio3, pba, 13); + +static struct resource pio4_resource[] = { + PBMEM(0xffe03800), + IRQ(17), +}; +DEFINE_DEV(pio, 4); +DEV_CLK(mck, pio4, pba, 14); + +static int __init system_device_init(void) +{ + platform_device_register(&at32_pm0_device); + platform_device_register(&at32_intc0_device); + platform_device_register(&at32ap700x_rtc0_device); + platform_device_register(&at32_wdt0_device); + platform_device_register(&at32_eic0_device); + platform_device_register(&smc0_device); + platform_device_register(&pdc_device); + platform_device_register(&dw_dmac0_device); + + platform_device_register(&at32_tcb0_device); + platform_device_register(&at32_tcb1_device); + + platform_device_register(&pio0_device); + platform_device_register(&pio1_device); + platform_device_register(&pio2_device); + platform_device_register(&pio3_device); + platform_device_register(&pio4_device); + + return 0; +} +core_initcall(system_device_init); + +/* -------------------------------------------------------------------- + * PSIF + * -------------------------------------------------------------------- */ +static struct resource atmel_psif0_resource[] __initdata = { + { + .start = 0xffe03c00, + .end = 0xffe03cff, + .flags = IORESOURCE_MEM, + }, + IRQ(18), +}; +static struct clk atmel_psif0_pclk = { + .name = "pclk", + .parent = &pba_clk, + .mode = pba_clk_mode, + .get_rate = pba_clk_get_rate, + .index = 15, +}; + +static struct resource atmel_psif1_resource[] __initdata = { + { + .start = 0xffe03d00, + .end = 0xffe03dff, + .flags = IORESOURCE_MEM, + }, + IRQ(18), +}; +static struct clk atmel_psif1_pclk = { + .name = "pclk", + .parent = &pba_clk, + .mode = pba_clk_mode, + .get_rate = pba_clk_get_rate, + .index = 15, +}; + +struct platform_device *__init at32_add_device_psif(unsigned int id) +{ + struct platform_device *pdev; + u32 pin_mask; + + if (!(id == 0 || id == 1)) + return NULL; + + pdev = platform_device_alloc("atmel_psif", id); + if (!pdev) + return NULL; + + switch (id) { + case 0: + pin_mask = (1 << 8) | (1 << 9); /* CLOCK & DATA */ + + if (platform_device_add_resources(pdev, atmel_psif0_resource, + ARRAY_SIZE(atmel_psif0_resource))) + goto err_add_resources; + atmel_psif0_pclk.dev = &pdev->dev; + select_peripheral(PIOA, pin_mask, PERIPH_A, 0); + break; + case 1: + pin_mask = (1 << 11) | (1 << 12); /* CLOCK & DATA */ + + if (platform_device_add_resources(pdev, atmel_psif1_resource, + ARRAY_SIZE(atmel_psif1_resource))) + goto err_add_resources; + atmel_psif1_pclk.dev = &pdev->dev; + select_peripheral(PIOB, pin_mask, PERIPH_A, 0); + break; + default: + return NULL; + } + + platform_device_add(pdev); + return pdev; + +err_add_resources: + platform_device_put(pdev); + return NULL; +} + +/* -------------------------------------------------------------------- + * USART + * -------------------------------------------------------------------- */ + +static struct atmel_uart_data atmel_usart0_data = { + .use_dma_tx = 1, + .use_dma_rx = 1, +}; +static struct resource atmel_usart0_resource[] = { + PBMEM(0xffe00c00), + IRQ(6), +}; +DEFINE_DEV_DATA(atmel_usart, 0); +DEV_CLK(usart, atmel_usart0, pba, 3); + +static struct atmel_uart_data atmel_usart1_data = { + .use_dma_tx = 1, + .use_dma_rx = 1, +}; +static struct resource atmel_usart1_resource[] = { + PBMEM(0xffe01000), + IRQ(7), +}; +DEFINE_DEV_DATA(atmel_usart, 1); +DEV_CLK(usart, atmel_usart1, pba, 4); + +static struct atmel_uart_data atmel_usart2_data = { + .use_dma_tx = 1, + .use_dma_rx = 1, +}; +static struct resource atmel_usart2_resource[] = { + PBMEM(0xffe01400), + IRQ(8), +}; +DEFINE_DEV_DATA(atmel_usart, 2); +DEV_CLK(usart, atmel_usart2, pba, 5); + +static struct atmel_uart_data atmel_usart3_data = { + .use_dma_tx = 1, + .use_dma_rx = 1, +}; +static struct resource atmel_usart3_resource[] = { + PBMEM(0xffe01800), + IRQ(9), +}; +DEFINE_DEV_DATA(atmel_usart, 3); +DEV_CLK(usart, atmel_usart3, pba, 6); + +static inline void configure_usart0_pins(int flags) +{ + u32 pin_mask = (1 << 8) | (1 << 9); /* RXD & TXD */ + if (flags & ATMEL_USART_RTS) pin_mask |= (1 << 6); + if (flags & ATMEL_USART_CTS) pin_mask |= (1 << 7); + if (flags & ATMEL_USART_CLK) pin_mask |= (1 << 10); + + select_peripheral(PIOA, pin_mask, PERIPH_B, AT32_GPIOF_PULLUP); +} + +static inline void configure_usart1_pins(int flags) +{ + u32 pin_mask = (1 << 17) | (1 << 18); /* RXD & TXD */ + if (flags & ATMEL_USART_RTS) pin_mask |= (1 << 19); + if (flags & ATMEL_USART_CTS) pin_mask |= (1 << 20); + if (flags & ATMEL_USART_CLK) pin_mask |= (1 << 16); + + select_peripheral(PIOA, pin_mask, PERIPH_A, AT32_GPIOF_PULLUP); +} + +static inline void configure_usart2_pins(int flags) +{ + u32 pin_mask = (1 << 26) | (1 << 27); /* RXD & TXD */ + if (flags & ATMEL_USART_RTS) pin_mask |= (1 << 30); + if (flags & ATMEL_USART_CTS) pin_mask |= (1 << 29); + if (flags & ATMEL_USART_CLK) pin_mask |= (1 << 28); + + select_peripheral(PIOB, pin_mask, PERIPH_B, AT32_GPIOF_PULLUP); +} + +static inline void configure_usart3_pins(int flags) +{ + u32 pin_mask = (1 << 18) | (1 << 17); /* RXD & TXD */ + if (flags & ATMEL_USART_RTS) pin_mask |= (1 << 16); + if (flags & ATMEL_USART_CTS) pin_mask |= (1 << 15); + if (flags & ATMEL_USART_CLK) pin_mask |= (1 << 19); + + select_peripheral(PIOB, pin_mask, PERIPH_B, AT32_GPIOF_PULLUP); +} + +static struct platform_device *__initdata at32_usarts[4]; + +void __init at32_map_usart(unsigned int hw_id, unsigned int line, int flags) +{ + struct platform_device *pdev; + struct atmel_uart_data *pdata; + + switch (hw_id) { + case 0: + pdev = &atmel_usart0_device; + configure_usart0_pins(flags); + break; + case 1: + pdev = &atmel_usart1_device; + configure_usart1_pins(flags); + break; + case 2: + pdev = &atmel_usart2_device; + configure_usart2_pins(flags); + break; + case 3: + pdev = &atmel_usart3_device; + configure_usart3_pins(flags); + break; + default: + return; + } + + if (PXSEG(pdev->resource[0].start) == P4SEG) { + /* Addresses in the P4 segment are permanently mapped 1:1 */ + struct atmel_uart_data *data = pdev->dev.platform_data; + data->regs = (void __iomem *)pdev->resource[0].start; + } + + pdev->id = line; + pdata = pdev->dev.platform_data; + pdata->num = line; + at32_usarts[line] = pdev; +} + +struct platform_device *__init at32_add_device_usart(unsigned int id) +{ + platform_device_register(at32_usarts[id]); + return at32_usarts[id]; +} + +void __init at32_setup_serial_console(unsigned int usart_id) +{ +#ifdef CONFIG_SERIAL_ATMEL + atmel_default_console_device = at32_usarts[usart_id]; +#endif +} + +/* -------------------------------------------------------------------- + * Ethernet + * -------------------------------------------------------------------- */ + +#ifdef CONFIG_CPU_AT32AP7000 +static struct macb_platform_data macb0_data; +static struct resource macb0_resource[] = { + PBMEM(0xfff01800), + IRQ(25), +}; +DEFINE_DEV_DATA(macb, 0); +DEV_CLK(hclk, macb0, hsb, 8); +DEV_CLK(pclk, macb0, pbb, 6); + +static struct macb_platform_data macb1_data; +static struct resource macb1_resource[] = { + PBMEM(0xfff01c00), + IRQ(26), +}; +DEFINE_DEV_DATA(macb, 1); +DEV_CLK(hclk, macb1, hsb, 9); +DEV_CLK(pclk, macb1, pbb, 7); + +struct platform_device *__init +at32_add_device_eth(unsigned int id, struct macb_platform_data *data) +{ + struct platform_device *pdev; + u32 pin_mask; + + switch (id) { + case 0: + pdev = &macb0_device; + + pin_mask = (1 << 3); /* TXD0 */ + pin_mask |= (1 << 4); /* TXD1 */ + pin_mask |= (1 << 7); /* TXEN */ + pin_mask |= (1 << 8); /* TXCK */ + pin_mask |= (1 << 9); /* RXD0 */ + pin_mask |= (1 << 10); /* RXD1 */ + pin_mask |= (1 << 13); /* RXER */ + pin_mask |= (1 << 15); /* RXDV */ + pin_mask |= (1 << 16); /* MDC */ + pin_mask |= (1 << 17); /* MDIO */ + + if (!data->is_rmii) { + pin_mask |= (1 << 0); /* COL */ + pin_mask |= (1 << 1); /* CRS */ + pin_mask |= (1 << 2); /* TXER */ + pin_mask |= (1 << 5); /* TXD2 */ + pin_mask |= (1 << 6); /* TXD3 */ + pin_mask |= (1 << 11); /* RXD2 */ + pin_mask |= (1 << 12); /* RXD3 */ + pin_mask |= (1 << 14); /* RXCK */ +#ifndef CONFIG_BOARD_MIMC200 + pin_mask |= (1 << 18); /* SPD */ +#endif + } + + select_peripheral(PIOC, pin_mask, PERIPH_A, 0); + + break; + + case 1: + pdev = &macb1_device; + + pin_mask = (1 << 13); /* TXD0 */ + pin_mask |= (1 << 14); /* TXD1 */ + pin_mask |= (1 << 11); /* TXEN */ + pin_mask |= (1 << 12); /* TXCK */ + pin_mask |= (1 << 10); /* RXD0 */ + pin_mask |= (1 << 6); /* RXD1 */ + pin_mask |= (1 << 5); /* RXER */ + pin_mask |= (1 << 4); /* RXDV */ + pin_mask |= (1 << 3); /* MDC */ + pin_mask |= (1 << 2); /* MDIO */ + +#ifndef CONFIG_BOARD_MIMC200 + if (!data->is_rmii) + pin_mask |= (1 << 15); /* SPD */ +#endif + + select_peripheral(PIOD, pin_mask, PERIPH_B, 0); + + if (!data->is_rmii) { + pin_mask = (1 << 19); /* COL */ + pin_mask |= (1 << 23); /* CRS */ + pin_mask |= (1 << 26); /* TXER */ + pin_mask |= (1 << 27); /* TXD2 */ + pin_mask |= (1 << 28); /* TXD3 */ + pin_mask |= (1 << 29); /* RXD2 */ + pin_mask |= (1 << 30); /* RXD3 */ + pin_mask |= (1 << 24); /* RXCK */ + + select_peripheral(PIOC, pin_mask, PERIPH_B, 0); + } + break; + + default: + return NULL; + } + + memcpy(pdev->dev.platform_data, data, sizeof(struct macb_platform_data)); + platform_device_register(pdev); + + return pdev; +} +#endif + +/* -------------------------------------------------------------------- + * SPI + * -------------------------------------------------------------------- */ +static struct resource atmel_spi0_resource[] = { + PBMEM(0xffe00000), + IRQ(3), +}; +DEFINE_DEV(atmel_spi, 0); +DEV_CLK(spi_clk, atmel_spi0, pba, 0); + +static struct resource atmel_spi1_resource[] = { + PBMEM(0xffe00400), + IRQ(4), +}; +DEFINE_DEV(atmel_spi, 1); +DEV_CLK(spi_clk, atmel_spi1, pba, 1); + +void __init +at32_spi_setup_slaves(unsigned int bus_num, struct spi_board_info *b, unsigned int n) +{ + /* + * Manage the chipselects as GPIOs, normally using the same pins + * the SPI controller expects; but boards can use other pins. + */ + static u8 __initdata spi_pins[][4] = { + { GPIO_PIN_PA(3), GPIO_PIN_PA(4), + GPIO_PIN_PA(5), GPIO_PIN_PA(20) }, + { GPIO_PIN_PB(2), GPIO_PIN_PB(3), + GPIO_PIN_PB(4), GPIO_PIN_PA(27) }, + }; + unsigned int pin, mode; + + /* There are only 2 SPI controllers */ + if (bus_num > 1) + return; + + for (; n; n--, b++) { + b->bus_num = bus_num; + if (b->chip_select >= 4) + continue; + pin = (unsigned)b->controller_data; + if (!pin) { + pin = spi_pins[bus_num][b->chip_select]; + b->controller_data = (void *)pin; + } + mode = AT32_GPIOF_OUTPUT; + if (!(b->mode & SPI_CS_HIGH)) + mode |= AT32_GPIOF_HIGH; + at32_select_gpio(pin, mode); + } +} + +struct platform_device *__init +at32_add_device_spi(unsigned int id, struct spi_board_info *b, unsigned int n) +{ + struct platform_device *pdev; + u32 pin_mask; + + switch (id) { + case 0: + pdev = &atmel_spi0_device; + pin_mask = (1 << 1) | (1 << 2); /* MOSI & SCK */ + + /* pullup MISO so a level is always defined */ + select_peripheral(PIOA, (1 << 0), PERIPH_A, AT32_GPIOF_PULLUP); + select_peripheral(PIOA, pin_mask, PERIPH_A, 0); + + at32_spi_setup_slaves(0, b, n); + break; + + case 1: + pdev = &atmel_spi1_device; + pin_mask = (1 << 1) | (1 << 5); /* MOSI */ + + /* pullup MISO so a level is always defined */ + select_peripheral(PIOB, (1 << 0), PERIPH_B, AT32_GPIOF_PULLUP); + select_peripheral(PIOB, pin_mask, PERIPH_B, 0); + + at32_spi_setup_slaves(1, b, n); + break; + + default: + return NULL; + } + + spi_register_board_info(b, n); + platform_device_register(pdev); + return pdev; +} + +/* -------------------------------------------------------------------- + * TWI + * -------------------------------------------------------------------- */ +static struct resource atmel_twi0_resource[] __initdata = { + PBMEM(0xffe00800), + IRQ(5), +}; +static struct clk atmel_twi0_pclk = { + .name = "twi_pclk", + .parent = &pba_clk, + .mode = pba_clk_mode, + .get_rate = pba_clk_get_rate, + .index = 2, +}; + +struct platform_device *__init at32_add_device_twi(unsigned int id, + struct i2c_board_info *b, + unsigned int n) +{ + struct platform_device *pdev; + u32 pin_mask; + + if (id != 0) + return NULL; + + pdev = platform_device_alloc("atmel_twi", id); + if (!pdev) + return NULL; + + if (platform_device_add_resources(pdev, atmel_twi0_resource, + ARRAY_SIZE(atmel_twi0_resource))) + goto err_add_resources; + + pin_mask = (1 << 6) | (1 << 7); /* SDA & SDL */ + + select_peripheral(PIOA, pin_mask, PERIPH_A, 0); + + atmel_twi0_pclk.dev = &pdev->dev; + + if (b) + i2c_register_board_info(id, b, n); + + platform_device_add(pdev); + return pdev; + +err_add_resources: + platform_device_put(pdev); + return NULL; +} + +/* -------------------------------------------------------------------- + * MMC + * -------------------------------------------------------------------- */ +static struct resource atmel_mci0_resource[] __initdata = { + PBMEM(0xfff02400), + IRQ(28), +}; +static struct clk atmel_mci0_pclk = { + .name = "mci_clk", + .parent = &pbb_clk, + .mode = pbb_clk_mode, + .get_rate = pbb_clk_get_rate, + .index = 9, +}; + +struct platform_device *__init +at32_add_device_mci(unsigned int id, struct mci_platform_data *data) +{ + struct platform_device *pdev; + struct mci_dma_data *slave; + u32 pioa_mask; + u32 piob_mask; + + if (id != 0 || !data) + return NULL; + + /* Must have at least one usable slot */ + if (!data->slot[0].bus_width && !data->slot[1].bus_width) + return NULL; + + pdev = platform_device_alloc("atmel_mci", id); + if (!pdev) + goto fail; + + if (platform_device_add_resources(pdev, atmel_mci0_resource, + ARRAY_SIZE(atmel_mci0_resource))) + goto fail; + + slave = kzalloc(sizeof(struct mci_dma_data), GFP_KERNEL); + if (!slave) + goto fail; + + slave->sdata.dma_dev = &dw_dmac0_device.dev; + slave->sdata.src_id = 0; + slave->sdata.dst_id = 1; + slave->sdata.src_master = 1; + slave->sdata.dst_master = 0; + + data->dma_slave = slave; + + if (platform_device_add_data(pdev, data, + sizeof(struct mci_platform_data))) + goto fail_free; + + /* CLK line is common to both slots */ + pioa_mask = 1 << 10; + + switch (data->slot[0].bus_width) { + case 4: + pioa_mask |= 1 << 13; /* DATA1 */ + pioa_mask |= 1 << 14; /* DATA2 */ + pioa_mask |= 1 << 15; /* DATA3 */ + /* fall through */ + case 1: + pioa_mask |= 1 << 11; /* CMD */ + pioa_mask |= 1 << 12; /* DATA0 */ + + if (gpio_is_valid(data->slot[0].detect_pin)) + at32_select_gpio(data->slot[0].detect_pin, 0); + if (gpio_is_valid(data->slot[0].wp_pin)) + at32_select_gpio(data->slot[0].wp_pin, 0); + break; + case 0: + /* Slot is unused */ + break; + default: + goto fail_free; + } + + select_peripheral(PIOA, pioa_mask, PERIPH_A, 0); + piob_mask = 0; + + switch (data->slot[1].bus_width) { + case 4: + piob_mask |= 1 << 8; /* DATA1 */ + piob_mask |= 1 << 9; /* DATA2 */ + piob_mask |= 1 << 10; /* DATA3 */ + /* fall through */ + case 1: + piob_mask |= 1 << 6; /* CMD */ + piob_mask |= 1 << 7; /* DATA0 */ + select_peripheral(PIOB, piob_mask, PERIPH_B, 0); + + if (gpio_is_valid(data->slot[1].detect_pin)) + at32_select_gpio(data->slot[1].detect_pin, 0); + if (gpio_is_valid(data->slot[1].wp_pin)) + at32_select_gpio(data->slot[1].wp_pin, 0); + break; + case 0: + /* Slot is unused */ + break; + default: + if (!data->slot[0].bus_width) + goto fail_free; + + data->slot[1].bus_width = 0; + break; + } + + atmel_mci0_pclk.dev = &pdev->dev; + + platform_device_add(pdev); + return pdev; + +fail_free: + kfree(slave); +fail: + data->dma_slave = NULL; + platform_device_put(pdev); + return NULL; +} + +/* -------------------------------------------------------------------- + * LCDC + * -------------------------------------------------------------------- */ +#if defined(CONFIG_CPU_AT32AP7000) || defined(CONFIG_CPU_AT32AP7002) +static struct atmel_lcdfb_pdata atmel_lcdfb0_data; +static struct resource atmel_lcdfb0_resource[] = { + { + .start = 0xff000000, + .end = 0xff000fff, + .flags = IORESOURCE_MEM, + }, + IRQ(1), + { + /* Placeholder for pre-allocated fb memory */ + .start = 0x00000000, + .end = 0x00000000, + .flags = 0, + }, +}; +DEFINE_DEV_DATA(atmel_lcdfb, 0); +DEV_CLK(hclk, atmel_lcdfb0, hsb, 7); +static struct clk atmel_lcdfb0_pixclk = { + .name = "lcdc_clk", + .dev = &atmel_lcdfb0_device.dev, + .mode = genclk_mode, + .get_rate = genclk_get_rate, + .set_rate = genclk_set_rate, + .set_parent = genclk_set_parent, + .index = 7, +}; + +struct platform_device *__init +at32_add_device_lcdc(unsigned int id, struct atmel_lcdfb_pdata *data, + unsigned long fbmem_start, unsigned long fbmem_len, + u64 pin_mask) +{ + struct platform_device *pdev; + struct atmel_lcdfb_pdata *info; + struct fb_monspecs *monspecs; + struct fb_videomode *modedb; + unsigned int modedb_size; + u32 portc_mask, portd_mask, porte_mask; + + /* + * Do a deep copy of the fb data, monspecs and modedb. Make + * sure all allocations are done before setting up the + * portmux. + */ + monspecs = kmemdup(data->default_monspecs, + sizeof(struct fb_monspecs), GFP_KERNEL); + if (!monspecs) + return NULL; + + modedb_size = sizeof(struct fb_videomode) * monspecs->modedb_len; + modedb = kmemdup(monspecs->modedb, modedb_size, GFP_KERNEL); + if (!modedb) + goto err_dup_modedb; + monspecs->modedb = modedb; + + switch (id) { + case 0: + pdev = &atmel_lcdfb0_device; + + if (pin_mask == 0ULL) + /* Default to "full" lcdc control signals and 24bit */ + pin_mask = ATMEL_LCDC_PRI_24BIT | ATMEL_LCDC_PRI_CONTROL; + + /* LCDC on port C */ + portc_mask = pin_mask & 0xfff80000; + select_peripheral(PIOC, portc_mask, PERIPH_A, 0); + + /* LCDC on port D */ + portd_mask = pin_mask & 0x0003ffff; + select_peripheral(PIOD, portd_mask, PERIPH_A, 0); + + /* LCDC on port E */ + porte_mask = (pin_mask >> 32) & 0x0007ffff; + select_peripheral(PIOE, porte_mask, PERIPH_B, 0); + + clk_set_parent(&atmel_lcdfb0_pixclk, &pll0); + clk_set_rate(&atmel_lcdfb0_pixclk, clk_get_rate(&pll0)); + break; + + default: + goto err_invalid_id; + } + + if (fbmem_len) { + pdev->resource[2].start = fbmem_start; + pdev->resource[2].end = fbmem_start + fbmem_len - 1; + pdev->resource[2].flags = IORESOURCE_MEM; + } + + info = pdev->dev.platform_data; + memcpy(info, data, sizeof(struct atmel_lcdfb_pdata)); + info->default_monspecs = monspecs; + + pdev->name = "at32ap-lcdfb"; + + platform_device_register(pdev); + return pdev; + +err_invalid_id: + kfree(modedb); +err_dup_modedb: + kfree(monspecs); + return NULL; +} +#endif + +/* -------------------------------------------------------------------- + * PWM + * -------------------------------------------------------------------- */ +static struct resource atmel_pwm0_resource[] __initdata = { + PBMEM(0xfff01400), + IRQ(24), +}; +static struct clk atmel_pwm0_mck = { + .name = "at91sam9rl-pwm", + .parent = &pbb_clk, + .mode = pbb_clk_mode, + .get_rate = pbb_clk_get_rate, + .index = 5, +}; + +struct platform_device *__init at32_add_device_pwm(u32 mask) +{ + struct platform_device *pdev; + u32 pin_mask; + + if (!mask) + return NULL; + + pdev = platform_device_alloc("at91sam9rl-pwm", 0); + if (!pdev) + return NULL; + + if (platform_device_add_resources(pdev, atmel_pwm0_resource, + ARRAY_SIZE(atmel_pwm0_resource))) + goto out_free_pdev; + + pin_mask = 0; + if (mask & (1 << 0)) + pin_mask |= (1 << 28); + if (mask & (1 << 1)) + pin_mask |= (1 << 29); + if (pin_mask > 0) + select_peripheral(PIOA, pin_mask, PERIPH_A, 0); + + pin_mask = 0; + if (mask & (1 << 2)) + pin_mask |= (1 << 21); + if (mask & (1 << 3)) + pin_mask |= (1 << 22); + if (pin_mask > 0) + select_peripheral(PIOA, pin_mask, PERIPH_B, 0); + + atmel_pwm0_mck.dev = &pdev->dev; + + platform_device_add(pdev); + + return pdev; + +out_free_pdev: + platform_device_put(pdev); + return NULL; +} + +/* -------------------------------------------------------------------- + * SSC + * -------------------------------------------------------------------- */ +static struct resource ssc0_resource[] = { + PBMEM(0xffe01c00), + IRQ(10), +}; +DEFINE_DEV(ssc, 0); +DEV_CLK(pclk, ssc0, pba, 7); + +static struct resource ssc1_resource[] = { + PBMEM(0xffe02000), + IRQ(11), +}; +DEFINE_DEV(ssc, 1); +DEV_CLK(pclk, ssc1, pba, 8); + +static struct resource ssc2_resource[] = { + PBMEM(0xffe02400), + IRQ(12), +}; +DEFINE_DEV(ssc, 2); +DEV_CLK(pclk, ssc2, pba, 9); + +struct platform_device *__init +at32_add_device_ssc(unsigned int id, unsigned int flags) +{ + struct platform_device *pdev; + u32 pin_mask = 0; + + switch (id) { + case 0: + pdev = &ssc0_device; + if (flags & ATMEL_SSC_RF) + pin_mask |= (1 << 21); /* RF */ + if (flags & ATMEL_SSC_RK) + pin_mask |= (1 << 22); /* RK */ + if (flags & ATMEL_SSC_TK) + pin_mask |= (1 << 23); /* TK */ + if (flags & ATMEL_SSC_TF) + pin_mask |= (1 << 24); /* TF */ + if (flags & ATMEL_SSC_TD) + pin_mask |= (1 << 25); /* TD */ + if (flags & ATMEL_SSC_RD) + pin_mask |= (1 << 26); /* RD */ + + if (pin_mask > 0) + select_peripheral(PIOA, pin_mask, PERIPH_A, 0); + + break; + case 1: + pdev = &ssc1_device; + if (flags & ATMEL_SSC_RF) + pin_mask |= (1 << 0); /* RF */ + if (flags & ATMEL_SSC_RK) + pin_mask |= (1 << 1); /* RK */ + if (flags & ATMEL_SSC_TK) + pin_mask |= (1 << 2); /* TK */ + if (flags & ATMEL_SSC_TF) + pin_mask |= (1 << 3); /* TF */ + if (flags & ATMEL_SSC_TD) + pin_mask |= (1 << 4); /* TD */ + if (flags & ATMEL_SSC_RD) + pin_mask |= (1 << 5); /* RD */ + + if (pin_mask > 0) + select_peripheral(PIOA, pin_mask, PERIPH_B, 0); + + break; + case 2: + pdev = &ssc2_device; + if (flags & ATMEL_SSC_TD) + pin_mask |= (1 << 13); /* TD */ + if (flags & ATMEL_SSC_RD) + pin_mask |= (1 << 14); /* RD */ + if (flags & ATMEL_SSC_TK) + pin_mask |= (1 << 15); /* TK */ + if (flags & ATMEL_SSC_TF) + pin_mask |= (1 << 16); /* TF */ + if (flags & ATMEL_SSC_RF) + pin_mask |= (1 << 17); /* RF */ + if (flags & ATMEL_SSC_RK) + pin_mask |= (1 << 18); /* RK */ + + if (pin_mask > 0) + select_peripheral(PIOB, pin_mask, PERIPH_A, 0); + + break; + default: + return NULL; + } + + platform_device_register(pdev); + return pdev; +} + +/* -------------------------------------------------------------------- + * USB Device Controller + * -------------------------------------------------------------------- */ +static struct resource usba0_resource[] __initdata = { + { + .start = 0xff300000, + .end = 0xff3fffff, + .flags = IORESOURCE_MEM, + }, { + .start = 0xfff03000, + .end = 0xfff033ff, + .flags = IORESOURCE_MEM, + }, + IRQ(31), +}; +static struct clk usba0_pclk = { + .name = "pclk", + .parent = &pbb_clk, + .mode = pbb_clk_mode, + .get_rate = pbb_clk_get_rate, + .index = 12, +}; +static struct clk usba0_hclk = { + .name = "hclk", + .parent = &hsb_clk, + .mode = hsb_clk_mode, + .get_rate = hsb_clk_get_rate, + .index = 6, +}; + +#define EP(nam, idx, maxpkt, maxbk, dma, isoc) \ + [idx] = { \ + .name = nam, \ + .index = idx, \ + .fifo_size = maxpkt, \ + .nr_banks = maxbk, \ + .can_dma = dma, \ + .can_isoc = isoc, \ + } + +static struct usba_ep_data at32_usba_ep[] __initdata = { + EP("ep0", 0, 64, 1, 0, 0), + EP("ep1", 1, 512, 2, 1, 1), + EP("ep2", 2, 512, 2, 1, 1), + EP("ep3-int", 3, 64, 3, 1, 0), + EP("ep4-int", 4, 64, 3, 1, 0), + EP("ep5", 5, 1024, 3, 1, 1), + EP("ep6", 6, 1024, 3, 1, 1), +}; + +#undef EP + +struct platform_device *__init +at32_add_device_usba(unsigned int id, struct usba_platform_data *data) +{ + /* + * pdata doesn't have room for any endpoints, so we need to + * append room for the ones we need right after it. + */ + struct { + struct usba_platform_data pdata; + struct usba_ep_data ep[7]; + } usba_data; + struct platform_device *pdev; + + if (id != 0) + return NULL; + + pdev = platform_device_alloc("atmel_usba_udc", 0); + if (!pdev) + return NULL; + + if (platform_device_add_resources(pdev, usba0_resource, + ARRAY_SIZE(usba0_resource))) + goto out_free_pdev; + + if (data) { + usba_data.pdata.vbus_pin = data->vbus_pin; + usba_data.pdata.vbus_pin_inverted = data->vbus_pin_inverted; + } else { + usba_data.pdata.vbus_pin = -EINVAL; + usba_data.pdata.vbus_pin_inverted = -EINVAL; + } + + data = &usba_data.pdata; + data->num_ep = ARRAY_SIZE(at32_usba_ep); + memcpy(data->ep, at32_usba_ep, sizeof(at32_usba_ep)); + + if (platform_device_add_data(pdev, data, sizeof(usba_data))) + goto out_free_pdev; + + if (gpio_is_valid(data->vbus_pin)) + at32_select_gpio(data->vbus_pin, 0); + + usba0_pclk.dev = &pdev->dev; + usba0_hclk.dev = &pdev->dev; + + platform_device_add(pdev); + + return pdev; + +out_free_pdev: + platform_device_put(pdev); + return NULL; +} + +/* -------------------------------------------------------------------- + * IDE / CompactFlash + * -------------------------------------------------------------------- */ +#if defined(CONFIG_CPU_AT32AP7000) || defined(CONFIG_CPU_AT32AP7001) +static struct resource at32_smc_cs4_resource[] __initdata = { + { + .start = 0x04000000, + .end = 0x07ffffff, + .flags = IORESOURCE_MEM, + }, + IRQ(~0UL), /* Magic IRQ will be overridden */ +}; +static struct resource at32_smc_cs5_resource[] __initdata = { + { + .start = 0x20000000, + .end = 0x23ffffff, + .flags = IORESOURCE_MEM, + }, + IRQ(~0UL), /* Magic IRQ will be overridden */ +}; + +static int __init at32_init_ide_or_cf(struct platform_device *pdev, + unsigned int cs, unsigned int extint) +{ + static unsigned int extint_pin_map[4] __initdata = { + (1 << 25), + (1 << 26), + (1 << 27), + (1 << 28), + }; + static bool common_pins_initialized __initdata = false; + unsigned int extint_pin; + int ret; + u32 pin_mask; + + if (extint >= ARRAY_SIZE(extint_pin_map)) + return -EINVAL; + extint_pin = extint_pin_map[extint]; + + switch (cs) { + case 4: + ret = platform_device_add_resources(pdev, + at32_smc_cs4_resource, + ARRAY_SIZE(at32_smc_cs4_resource)); + if (ret) + return ret; + + /* NCS4 -> OE_N */ + select_peripheral(PIOE, (1 << 21), PERIPH_A, 0); + hmatrix_sfr_set_bits(HMATRIX_SLAVE_EBI, HMATRIX_EBI_CF0_ENABLE); + break; + case 5: + ret = platform_device_add_resources(pdev, + at32_smc_cs5_resource, + ARRAY_SIZE(at32_smc_cs5_resource)); + if (ret) + return ret; + + /* NCS5 -> OE_N */ + select_peripheral(PIOE, (1 << 22), PERIPH_A, 0); + hmatrix_sfr_set_bits(HMATRIX_SLAVE_EBI, HMATRIX_EBI_CF1_ENABLE); + break; + default: + return -EINVAL; + } + + if (!common_pins_initialized) { + pin_mask = (1 << 19); /* CFCE1 -> CS0_N */ + pin_mask |= (1 << 20); /* CFCE2 -> CS1_N */ + pin_mask |= (1 << 23); /* CFRNW -> DIR */ + pin_mask |= (1 << 24); /* NWAIT <- IORDY */ + + select_peripheral(PIOE, pin_mask, PERIPH_A, 0); + + common_pins_initialized = true; + } + + select_peripheral(PIOB, extint_pin, PERIPH_A, AT32_GPIOF_DEGLITCH); + + pdev->resource[1].start = EIM_IRQ_BASE + extint; + pdev->resource[1].end = pdev->resource[1].start; + + return 0; +} + +struct platform_device *__init +at32_add_device_ide(unsigned int id, unsigned int extint, + struct ide_platform_data *data) +{ + struct platform_device *pdev; + + pdev = platform_device_alloc("at32_ide", id); + if (!pdev) + goto fail; + + if (platform_device_add_data(pdev, data, + sizeof(struct ide_platform_data))) + goto fail; + + if (at32_init_ide_or_cf(pdev, data->cs, extint)) + goto fail; + + platform_device_add(pdev); + return pdev; + +fail: + platform_device_put(pdev); + return NULL; +} + +struct platform_device *__init +at32_add_device_cf(unsigned int id, unsigned int extint, + struct cf_platform_data *data) +{ + struct platform_device *pdev; + + pdev = platform_device_alloc("at32_cf", id); + if (!pdev) + goto fail; + + if (platform_device_add_data(pdev, data, + sizeof(struct cf_platform_data))) + goto fail; + + if (at32_init_ide_or_cf(pdev, data->cs, extint)) + goto fail; + + if (gpio_is_valid(data->detect_pin)) + at32_select_gpio(data->detect_pin, AT32_GPIOF_DEGLITCH); + if (gpio_is_valid(data->reset_pin)) + at32_select_gpio(data->reset_pin, 0); + if (gpio_is_valid(data->vcc_pin)) + at32_select_gpio(data->vcc_pin, 0); + /* READY is used as extint, so we can't select it as gpio */ + + platform_device_add(pdev); + return pdev; + +fail: + platform_device_put(pdev); + return NULL; +} +#endif + +/* -------------------------------------------------------------------- + * NAND Flash / SmartMedia + * -------------------------------------------------------------------- */ +static struct resource smc_cs3_resource[] __initdata = { + { + .start = 0x0c000000, + .end = 0x0fffffff, + .flags = IORESOURCE_MEM, + }, { + .start = 0xfff03c00, + .end = 0xfff03fff, + .flags = IORESOURCE_MEM, + }, +}; + +struct platform_device *__init +at32_add_device_nand(unsigned int id, struct atmel_nand_data *data) +{ + struct platform_device *pdev; + + if (id != 0 || !data) + return NULL; + + pdev = platform_device_alloc("atmel_nand", id); + if (!pdev) + goto fail; + + if (platform_device_add_resources(pdev, smc_cs3_resource, + ARRAY_SIZE(smc_cs3_resource))) + goto fail; + + /* For at32ap7000, we use the reset workaround for nand driver */ + data->need_reset_workaround = true; + + if (platform_device_add_data(pdev, data, + sizeof(struct atmel_nand_data))) + goto fail; + + hmatrix_sfr_set_bits(HMATRIX_SLAVE_EBI, HMATRIX_EBI_NAND_ENABLE); + if (data->enable_pin) + at32_select_gpio(data->enable_pin, + AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH); + if (data->rdy_pin) + at32_select_gpio(data->rdy_pin, 0); + if (data->det_pin) + at32_select_gpio(data->det_pin, 0); + + platform_device_add(pdev); + return pdev; + +fail: + platform_device_put(pdev); + return NULL; +} + +/* -------------------------------------------------------------------- + * AC97C + * -------------------------------------------------------------------- */ +static struct resource atmel_ac97c0_resource[] __initdata = { + PBMEM(0xfff02800), + IRQ(29), +}; +static struct clk atmel_ac97c0_pclk = { + .name = "pclk", + .parent = &pbb_clk, + .mode = pbb_clk_mode, + .get_rate = pbb_clk_get_rate, + .index = 10, +}; + +struct platform_device *__init +at32_add_device_ac97c(unsigned int id, struct ac97c_platform_data *data, + unsigned int flags) +{ + struct platform_device *pdev; + struct dw_dma_slave *rx_dws; + struct dw_dma_slave *tx_dws; + struct ac97c_platform_data _data; + u32 pin_mask; + + if (id != 0) + return NULL; + + pdev = platform_device_alloc("atmel_ac97c", id); + if (!pdev) + return NULL; + + if (platform_device_add_resources(pdev, atmel_ac97c0_resource, + ARRAY_SIZE(atmel_ac97c0_resource))) + goto out_free_resources; + + if (!data) { + data = &_data; + memset(data, 0, sizeof(struct ac97c_platform_data)); + data->reset_pin = -ENODEV; + } + + rx_dws = &data->rx_dws; + tx_dws = &data->tx_dws; + + /* Check if DMA slave interface for capture should be configured. */ + if (flags & AC97C_CAPTURE) { + rx_dws->dma_dev = &dw_dmac0_device.dev; + rx_dws->src_id = 3; + rx_dws->src_master = 0; + rx_dws->dst_master = 1; + } + + /* Check if DMA slave interface for playback should be configured. */ + if (flags & AC97C_PLAYBACK) { + tx_dws->dma_dev = &dw_dmac0_device.dev; + tx_dws->dst_id = 4; + tx_dws->src_master = 0; + tx_dws->dst_master = 1; + } + + if (platform_device_add_data(pdev, data, + sizeof(struct ac97c_platform_data))) + goto out_free_resources; + + /* SDO | SYNC | SCLK | SDI */ + pin_mask = (1 << 20) | (1 << 21) | (1 << 22) | (1 << 23); + + select_peripheral(PIOB, pin_mask, PERIPH_B, 0); + + if (gpio_is_valid(data->reset_pin)) + at32_select_gpio(data->reset_pin, AT32_GPIOF_OUTPUT + | AT32_GPIOF_HIGH); + + atmel_ac97c0_pclk.dev = &pdev->dev; + + platform_device_add(pdev); + return pdev; + +out_free_resources: + platform_device_put(pdev); + return NULL; +} + +/* -------------------------------------------------------------------- + * ABDAC + * -------------------------------------------------------------------- */ +static struct resource abdac0_resource[] __initdata = { + PBMEM(0xfff02000), + IRQ(27), +}; +static struct clk abdac0_pclk = { + .name = "pclk", + .parent = &pbb_clk, + .mode = pbb_clk_mode, + .get_rate = pbb_clk_get_rate, + .index = 8, +}; +static struct clk abdac0_sample_clk = { + .name = "sample_clk", + .mode = genclk_mode, + .get_rate = genclk_get_rate, + .set_rate = genclk_set_rate, + .set_parent = genclk_set_parent, + .index = 6, +}; + +struct platform_device *__init +at32_add_device_abdac(unsigned int id, struct atmel_abdac_pdata *data) +{ + struct platform_device *pdev; + struct dw_dma_slave *dws; + u32 pin_mask; + + if (id != 0 || !data) + return NULL; + + pdev = platform_device_alloc("atmel_abdac", id); + if (!pdev) + return NULL; + + if (platform_device_add_resources(pdev, abdac0_resource, + ARRAY_SIZE(abdac0_resource))) + goto out_free_resources; + + dws = &data->dws; + + dws->dma_dev = &dw_dmac0_device.dev; + dws->dst_id = 2; + dws->src_master = 0; + dws->dst_master = 1; + + if (platform_device_add_data(pdev, data, + sizeof(struct atmel_abdac_pdata))) + goto out_free_resources; + + pin_mask = (1 << 20) | (1 << 22); /* DATA1 & DATAN1 */ + pin_mask |= (1 << 21) | (1 << 23); /* DATA0 & DATAN0 */ + + select_peripheral(PIOB, pin_mask, PERIPH_A, 0); + + abdac0_pclk.dev = &pdev->dev; + abdac0_sample_clk.dev = &pdev->dev; + + platform_device_add(pdev); + return pdev; + +out_free_resources: + platform_device_put(pdev); + return NULL; +} + +/* -------------------------------------------------------------------- + * GCLK + * -------------------------------------------------------------------- */ +static struct clk gclk0 = { + .name = "gclk0", + .mode = genclk_mode, + .get_rate = genclk_get_rate, + .set_rate = genclk_set_rate, + .set_parent = genclk_set_parent, + .index = 0, +}; +static struct clk gclk1 = { + .name = "gclk1", + .mode = genclk_mode, + .get_rate = genclk_get_rate, + .set_rate = genclk_set_rate, + .set_parent = genclk_set_parent, + .index = 1, +}; +static struct clk gclk2 = { + .name = "gclk2", + .mode = genclk_mode, + .get_rate = genclk_get_rate, + .set_rate = genclk_set_rate, + .set_parent = genclk_set_parent, + .index = 2, +}; +static struct clk gclk3 = { + .name = "gclk3", + .mode = genclk_mode, + .get_rate = genclk_get_rate, + .set_rate = genclk_set_rate, + .set_parent = genclk_set_parent, + .index = 3, +}; +static struct clk gclk4 = { + .name = "gclk4", + .mode = genclk_mode, + .get_rate = genclk_get_rate, + .set_rate = genclk_set_rate, + .set_parent = genclk_set_parent, + .index = 4, +}; + +static __initdata struct clk *init_clocks[] = { + &osc32k, + &osc0, + &osc1, + &pll0, + &pll1, + &cpu_clk, + &hsb_clk, + &pba_clk, + &pbb_clk, + &at32_pm_pclk, + &at32_intc0_pclk, + &at32_hmatrix_clk, + &ebi_clk, + &hramc_clk, + &sdramc_clk, + &smc0_pclk, + &smc0_mck, + &pdc_hclk, + &pdc_pclk, + &dw_dmac0_hclk, + &pico_clk, + &pio0_mck, + &pio1_mck, + &pio2_mck, + &pio3_mck, + &pio4_mck, + &at32_tcb0_t0_clk, + &at32_tcb1_t0_clk, + &atmel_psif0_pclk, + &atmel_psif1_pclk, + &atmel_usart0_usart, + &atmel_usart1_usart, + &atmel_usart2_usart, + &atmel_usart3_usart, + &atmel_pwm0_mck, +#if defined(CONFIG_CPU_AT32AP7000) + &macb0_hclk, + &macb0_pclk, + &macb1_hclk, + &macb1_pclk, +#endif + &atmel_spi0_spi_clk, + &atmel_spi1_spi_clk, + &atmel_twi0_pclk, + &atmel_mci0_pclk, +#if defined(CONFIG_CPU_AT32AP7000) || defined(CONFIG_CPU_AT32AP7002) + &atmel_lcdfb0_hclk, + &atmel_lcdfb0_pixclk, +#endif + &ssc0_pclk, + &ssc1_pclk, + &ssc2_pclk, + &usba0_hclk, + &usba0_pclk, + &atmel_ac97c0_pclk, + &abdac0_pclk, + &abdac0_sample_clk, + &gclk0, + &gclk1, + &gclk2, + &gclk3, + &gclk4, +}; + +void __init setup_platform(void) +{ + u32 cpu_mask = 0, hsb_mask = 0, pba_mask = 0, pbb_mask = 0; + int i; + + if (pm_readl(MCCTRL) & PM_BIT(PLLSEL)) { + main_clock = &pll0; + cpu_clk.parent = &pll0; + } else { + main_clock = &osc0; + cpu_clk.parent = &osc0; + } + + if (pm_readl(PLL0) & PM_BIT(PLLOSC)) + pll0.parent = &osc1; + if (pm_readl(PLL1) & PM_BIT(PLLOSC)) + pll1.parent = &osc1; + + genclk_init_parent(&gclk0); + genclk_init_parent(&gclk1); + genclk_init_parent(&gclk2); + genclk_init_parent(&gclk3); + genclk_init_parent(&gclk4); +#if defined(CONFIG_CPU_AT32AP7000) || defined(CONFIG_CPU_AT32AP7002) + genclk_init_parent(&atmel_lcdfb0_pixclk); +#endif + genclk_init_parent(&abdac0_sample_clk); + + /* + * Build initial dynamic clock list by registering all clocks + * from the array. + * At the same time, turn on all clocks that have at least one + * user already, and turn off everything else. We only do this + * for module clocks, and even though it isn't particularly + * pretty to check the address of the mode function, it should + * do the trick... + */ + for (i = 0; i < ARRAY_SIZE(init_clocks); i++) { + struct clk *clk = init_clocks[i]; + + /* first, register clock */ + at32_clk_register(clk); + + if (clk->users == 0) + continue; + + if (clk->mode == &cpu_clk_mode) + cpu_mask |= 1 << clk->index; + else if (clk->mode == &hsb_clk_mode) + hsb_mask |= 1 << clk->index; + else if (clk->mode == &pba_clk_mode) + pba_mask |= 1 << clk->index; + else if (clk->mode == &pbb_clk_mode) + pbb_mask |= 1 << clk->index; + } + + pm_writel(CPU_MASK, cpu_mask); + pm_writel(HSB_MASK, hsb_mask); + pm_writel(PBA_MASK, pba_mask); + pm_writel(PBB_MASK, pbb_mask); + + /* Initialize the port muxes */ + at32_init_pio(&pio0_device); + at32_init_pio(&pio1_device); + at32_init_pio(&pio2_device); + at32_init_pio(&pio3_device); + at32_init_pio(&pio4_device); +} + +struct gen_pool *sram_pool; + +static int __init sram_init(void) +{ + struct gen_pool *pool; + + /* 1KiB granularity */ + pool = gen_pool_create(10, -1); + if (!pool) + goto fail; + + if (gen_pool_add(pool, 0x24000000, 0x8000, -1)) + goto err_pool_add; + + sram_pool = pool; + return 0; + +err_pool_add: + gen_pool_destroy(pool); +fail: + pr_err("Failed to create SRAM pool\n"); + return -ENOMEM; +} +core_initcall(sram_init); |