2 * linux/arch/arm/mach-mmp/pxa168.c
4 * Code specific to PXA168
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
11 #include <linux/module.h>
12 #include <linux/kernel.h>
13 #include <linux/init.h>
14 #include <linux/list.h>
15 #include <linux/clk.h>
17 #include <asm/mach/time.h>
18 #include <mach/addr-map.h>
19 #include <mach/cputype.h>
20 #include <mach/regs-apbc.h>
21 #include <mach/irqs.h>
23 #include <mach/devices.h>
28 void __init pxa168_init_irq(void)
33 /* APB peripheral clocks */
34 static APBC_CLK(uart1, PXA168_UART1, 1, 14745600);
35 static APBC_CLK(uart2, PXA168_UART2, 1, 14745600);
37 /* device and clock bindings */
38 static struct clk_lookup pxa168_clkregs[] = {
39 INIT_CLKREG(&clk_uart1, "pxa2xx-uart.0", NULL),
40 INIT_CLKREG(&clk_uart2, "pxa2xx-uart.1", NULL),
43 static int __init pxa168_init(void)
45 if (cpu_is_pxa168()) {
46 pxa_init_dma(IRQ_PXA168_DMA_INT0, 32);
47 clks_register(ARRAY_AND_SIZE(pxa168_clkregs));
52 postcore_initcall(pxa168_init);
54 /* system timer - clock enabled, 3.25MHz */
55 #define TIMER_CLK_RST (APBC_APBCLK | APBC_FNCLK | APBC_FNCLKSEL(3))
57 static void __init pxa168_timer_init(void)
59 /* this is early, we have to initialize the CCU registers by
60 * ourselves instead of using clk_* API. Clock rate is defined
61 * by APBC_TIMERS_CLK_RST (3.25MHz) and enabled free-running
63 __raw_writel(APBC_APBCLK | APBC_RST, APBC_PXA168_TIMERS);
65 /* 3.25MHz, bus/functional clock enabled, release reset */
66 __raw_writel(TIMER_CLK_RST, APBC_PXA168_TIMERS);
68 timer_init(IRQ_PXA168_TIMER1);
71 struct sys_timer pxa168_timer = {
72 .init = pxa168_timer_init,
76 PXA168_DEVICE(uart1, "pxa2xx-uart", 0, UART1, 0xd4017000, 0x30, 21, 22);
77 PXA168_DEVICE(uart2, "pxa2xx-uart", 1, UART2, 0xd4018000, 0x30, 23, 24);