diff options
author | Ingo Molnar <mingo@elte.hu> | 2009-04-06 09:02:57 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2009-04-06 09:02:57 +0200 |
commit | f541ae326fa120fa5c57433e4d9a133df212ce41 (patch) | |
tree | bdbd94ec72cfc601118051cb35e8617d55510177 /arch/arm/mach-mmp/pxa168.c | |
parent | e255357764f92afcafafbd4879b222b8c752065a (diff) | |
parent | 0221c81b1b8eb0cbb6b30a0ced52ead32d2b4e4c (diff) |
Merge branch 'linus' into perfcounters/core-v2
Merge reason: we have gathered quite a few conflicts, need to merge upstream
Conflicts:
arch/powerpc/kernel/Makefile
arch/x86/ia32/ia32entry.S
arch/x86/include/asm/hardirq.h
arch/x86/include/asm/unistd_32.h
arch/x86/include/asm/unistd_64.h
arch/x86/kernel/cpu/common.c
arch/x86/kernel/irq.c
arch/x86/kernel/syscall_table_32.S
arch/x86/mm/iomap_32.c
include/linux/sched.h
kernel/Makefile
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/arm/mach-mmp/pxa168.c')
-rw-r--r-- | arch/arm/mach-mmp/pxa168.c | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/arch/arm/mach-mmp/pxa168.c b/arch/arm/mach-mmp/pxa168.c new file mode 100644 index 000000000000..ae924468658c --- /dev/null +++ b/arch/arm/mach-mmp/pxa168.c @@ -0,0 +1,111 @@ +/* + * 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 <linux/module.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/list.h> +#include <linux/io.h> +#include <linux/clk.h> + +#include <asm/mach/time.h> +#include <mach/addr-map.h> +#include <mach/cputype.h> +#include <mach/regs-apbc.h> +#include <mach/irqs.h> +#include <mach/gpio.h> +#include <mach/dma.h> +#include <mach/devices.h> +#include <mach/mfp.h> + +#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, +}; + +#define APMASK(i) (GPIO_REGS_VIRT + BANK_OFF(i) + 0x09c) + +static void __init pxa168_init_gpio(void) +{ + int i; + + /* enable GPIO clock */ + __raw_writel(APBC_APBCLK | APBC_FNCLK, APBC_PXA168_GPIO); + + /* unmask GPIO edge detection for all 4 banks - APMASKx */ + for (i = 0; i < 4; i++) + __raw_writel(0xffffffff, APMASK(i)); + + pxa_init_gpio(IRQ_PXA168_GPIOX, 0, 127, NULL); +} + +void __init pxa168_init_irq(void) +{ + icu_init_irq(); + pxa168_init_gpio(); +} + +/* APB peripheral clocks */ +static APBC_CLK(uart1, PXA168_UART1, 1, 14745600); +static APBC_CLK(uart2, PXA168_UART2, 1, 14745600); + +/* 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), +}; + +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); + clks_register(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, +}; + +/* 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); |