/* * linux/arch/arm/mach-mmp/pxa168.c * * Code specific to PXA168 * * 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "common.h" #include "clock.h" #define MFPR_VIRT_BASE (APB_VIRT_BASE + 0x1e000) static struct mfp_addr_map pxa168_mfp_addr_map[] __initdata = { MFP_ADDR_X(GPIO0, GPIO36, 0x04c), MFP_ADDR_X(GPIO37, GPIO55, 0x000), MFP_ADDR_X(GPIO56, GPIO123, 0x0e0), MFP_ADDR_X(GPIO124, GPIO127, 0x0f4), MFP_ADDR_END, }; void __init pxa168_init_irq(void) { icu_init_irq(); } /* APB peripheral clocks */ static APBC_CLK(uart1, PXA168_UART1, 1, 14745600); static APBC_CLK(uart2, PXA168_UART2, 1, 14745600); static APBC_CLK(uart3, PXA168_UART3, 1, 14745600); static APBC_CLK(twsi0, PXA168_TWSI0, 1, 33000000); static APBC_CLK(twsi1, PXA168_TWSI1, 1, 33000000); static APBC_CLK(pwm1, PXA168_PWM1, 1, 13000000); static APBC_CLK(pwm2, PXA168_PWM2, 1, 13000000); static APBC_CLK(pwm3, PXA168_PWM3, 1, 13000000); static APBC_CLK(pwm4, PXA168_PWM4, 1, 13000000); static APBC_CLK(ssp1, PXA168_SSP1, 4, 0); static APBC_CLK(ssp2, PXA168_SSP2, 4, 0); static APBC_CLK(ssp3, PXA168_SSP3, 4, 0); static APBC_CLK(ssp4, PXA168_SSP4, 4, 0); static APBC_CLK(ssp5, PXA168_SSP5, 4, 0); static APBC_CLK(gpio, PXA168_GPIO, 0, 13000000); static APBC_CLK(keypad, PXA168_KPC, 0, 32000); static APMU_CLK(nand, NAND, 0x19b, 156000000); static APMU_CLK(lcd, LCD, 0x7f, 312000000); static APMU_CLK(eth, ETH, 0x09, 0); static APMU_CLK(usb, USB, 0x12, 0); /* device and clock bindings */ static struct clk_lookup pxa168_clkregs[] = { INIT_CLKREG(&clk_uart1, "pxa2xx-uart.0", NULL), INIT_CLKREG(&clk_uart2, "pxa2xx-uart.1", NULL), INIT_CLKREG(&clk_uart3, "pxa2xx-uart.2", NULL), INIT_CLKREG(&clk_twsi0, "pxa2xx-i2c.0", NULL), INIT_CLKREG(&clk_twsi1, "pxa2xx-i2c.1", NULL), INIT_CLKREG(&clk_pwm1, "pxa168-pwm.0", NULL), INIT_CLKREG(&clk_pwm2, "pxa168-pwm.1", NULL), INIT_CLKREG(&clk_pwm3, "pxa168-pwm.2", NULL), INIT_CLKREG(&clk_pwm4, "pxa168-pwm.3", NULL), INIT_CLKREG(&clk_ssp1, "pxa168-ssp.0", NULL), INIT_CLKREG(&clk_ssp2, "pxa168-ssp.1", NULL), INIT_CLKREG(&clk_ssp3, "pxa168-ssp.2", NULL), INIT_CLKREG(&clk_ssp4, "pxa168-ssp.3", NULL), INIT_CLKREG(&clk_ssp5, "pxa168-ssp.4", NULL), INIT_CLKREG(&clk_nand, "pxa3xx-nand", NULL), INIT_CLKREG(&clk_lcd, "pxa168-fb", NULL), INIT_CLKREG(&clk_gpio, "pxa-gpio", NULL), INIT_CLKREG(&clk_keypad, "pxa27x-keypad", NULL), INIT_CLKREG(&clk_eth, "pxa168-eth", "MFUCLK"), INIT_CLKREG(&clk_usb, "pxa168-ehci", "PXA168-USBCLK"), }; static int __init pxa168_init(void) { if (cpu_is_pxa168()) { mfp_init_base(MFPR_VIRT_BASE); mfp_init_addr(pxa168_mfp_addr_map); pxa_init_dma(IRQ_PXA168_DMA_INT0, 32); clkdev_add_table(ARRAY_AND_SIZE(pxa168_clkregs)); } return 0; } postcore_initcall(pxa168_init); /* system timer - clock enabled, 3.25MHz */ #define TIMER_CLK_RST (APBC_APBCLK | APBC_FNCLK | APBC_FNCLKSEL(3)) static void __init pxa168_timer_init(void) { /* this is early, we have to initialize the CCU registers by * ourselves instead of using clk_* API. Clock rate is defined * by APBC_TIMERS_CLK_RST (3.25MHz) and enabled free-running */ __raw_writel(APBC_APBCLK | APBC_RST, APBC_PXA168_TIMERS); /* 3.25MHz, bus/functional clock enabled, release reset */ __raw_writel(TIMER_CLK_RST, APBC_PXA168_TIMERS); timer_init(IRQ_PXA168_TIMER1); } struct sys_timer pxa168_timer = { .init = pxa168_timer_init, }; void pxa168_clear_keypad_wakeup(void) { uint32_t val; uint32_t mask = APMU_PXA168_KP_WAKE_CLR; /* wake event clear is needed in order to clear keypad interrupt */ val = __raw_readl(APMU_WAKE_CLR); __raw_writel(val | mask, APMU_WAKE_CLR); } /* on-chip devices */ PXA168_DEVICE(uart1, "pxa2xx-uart", 0, UART1, 0xd4017000, 0x30, 21, 22); PXA168_DEVICE(uart2, "pxa2xx-uart", 1, UART2, 0xd4018000, 0x30, 23, 24); PXA168_DEVICE(uart3, "pxa2xx-uart", 2, UART3, 0xd4026000, 0x30, 23, 24); PXA168_DEVICE(twsi0, "pxa2xx-i2c", 0, TWSI0, 0xd4011000, 0x28); PXA168_DEVICE(twsi1, "pxa2xx-i2c", 1, TWSI1, 0xd4025000, 0x28); PXA168_DEVICE(pwm1, "pxa168-pwm", 0, NONE, 0xd401a000, 0x10); PXA168_DEVICE(pwm2, "pxa168-pwm", 1, NONE, 0xd401a400, 0x10); PXA168_DEVICE(pwm3, "pxa168-pwm", 2, NONE, 0xd401a800, 0x10); PXA168_DEVICE(pwm4, "pxa168-pwm", 3, NONE, 0xd401ac00, 0x10); PXA168_DEVICE(nand, "pxa3xx-nand", -1, NAND, 0xd4283000, 0x80, 97, 99); PXA168_DEVICE(ssp1, "pxa168-ssp", 0, SSP1, 0xd401b000, 0x40, 52, 53); PXA168_DEVICE(ssp2, "pxa168-ssp", 1, SSP2, 0xd401c000, 0x40, 54, 55); PXA168_DEVICE(ssp3, "pxa168-ssp", 2, SSP3, 0xd401f000, 0x40, 56, 57); PXA168_DEVICE(ssp4, "pxa168-ssp", 3, SSP4, 0xd4020000, 0x40, 58, 59); PXA168_DEVICE(ssp5, "pxa168-ssp", 4, SSP5, 0xd4021000, 0x40, 60, 61); PXA168_DEVICE(fb, "pxa168-fb", -1, LCD, 0xd420b000, 0x1c8); PXA168_DEVICE(keypad, "pxa27x-keypad", -1, KEYPAD, 0xd4012000, 0x4c); PXA168_DEVICE(eth, "pxa168-eth", -1, MFU, 0xc0800000, 0x0fff); struct resource pxa168_resource_gpio[] = { { .start = 0xd4019000, .end = 0xd4019fff, .flags = IORESOURCE_MEM, }, { .start = IRQ_PXA168_GPIOX, .end = IRQ_PXA168_GPIOX, .name = "gpio_mux", .flags = IORESOURCE_IRQ, }, }; struct platform_device pxa168_device_gpio = { .name = "pxa-gpio", .id = -1, .num_resources = ARRAY_SIZE(pxa168_resource_gpio), .resource = pxa168_resource_gpio, }; struct resource pxa168_usb_host_resources[] = { /* USB Host conroller register base */ [0] = { .start = 0xd4209000, .end = 0xd4209000 + 0x200, .flags = IORESOURCE_MEM, .name = "pxa168-usb-host", }, /* USB PHY register base */ [1] = { .start = 0xd4206000, .end = 0xd4206000 + 0xff, .flags = IORESOURCE_MEM, .name = "pxa168-usb-phy", }, [2] = { .start = IRQ_PXA168_USB2, .end = IRQ_PXA168_USB2, .flags = IORESOURCE_IRQ, }, }; static u64 pxa168_usb_host_dmamask = DMA_BIT_MASK(32); struct platform_device pxa168_device_usb_host = { .name = "pxa168-ehci", .id = -1, .dev = { .dma_mask = &pxa168_usb_host_dmamask, .coherent_dma_mask = DMA_BIT_MASK(32), }, .num_resources = ARRAY_SIZE(pxa168_usb_host_resources), .resource = pxa168_usb_host_resources, }; int __init pxa168_add_usb_host(struct pxa168_usb_pdata *pdata) { pxa168_device_usb_host.dev.platform_data = pdata; return platform_device_register(&pxa168_device_usb_host); } void pxa168_restart(char mode, const char *cmd) { soft_restart(0xffff0000); }