| /* |
| * linux/arch/arm/mach-mmp/pxa910.c |
| * |
| * Code specific to PXA910 |
| * |
| * 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 <asm/mach/time.h> |
| #include <mach/addr-map.h> |
| #include <mach/regs-apbc.h> |
| #include <mach/regs-apmu.h> |
| #include <mach/cputype.h> |
| #include <mach/irqs.h> |
| #include <mach/gpio.h> |
| #include <mach/dma.h> |
| #include <mach/mfp.h> |
| #include <mach/devices.h> |
| |
| #include "common.h" |
| #include "clock.h" |
| |
| #define MFPR_VIRT_BASE (APB_VIRT_BASE + 0x1e000) |
| |
| static struct mfp_addr_map pxa910_mfp_addr_map[] __initdata = |
| { |
| MFP_ADDR_X(GPIO0, GPIO54, 0xdc), |
| MFP_ADDR_X(GPIO67, GPIO98, 0x1b8), |
| MFP_ADDR_X(GPIO100, GPIO109, 0x238), |
| |
| MFP_ADDR(GPIO123, 0xcc), |
| MFP_ADDR(GPIO124, 0xd0), |
| |
| MFP_ADDR(DF_IO0, 0x40), |
| MFP_ADDR(DF_IO1, 0x3c), |
| MFP_ADDR(DF_IO2, 0x38), |
| MFP_ADDR(DF_IO3, 0x34), |
| MFP_ADDR(DF_IO4, 0x30), |
| MFP_ADDR(DF_IO5, 0x2c), |
| MFP_ADDR(DF_IO6, 0x28), |
| MFP_ADDR(DF_IO7, 0x24), |
| MFP_ADDR(DF_IO8, 0x20), |
| MFP_ADDR(DF_IO9, 0x1c), |
| MFP_ADDR(DF_IO10, 0x18), |
| MFP_ADDR(DF_IO11, 0x14), |
| MFP_ADDR(DF_IO12, 0x10), |
| MFP_ADDR(DF_IO13, 0xc), |
| MFP_ADDR(DF_IO14, 0x8), |
| MFP_ADDR(DF_IO15, 0x4), |
| |
| MFP_ADDR(DF_nCS0_SM_nCS2, 0x44), |
| MFP_ADDR(DF_nCS1_SM_nCS3, 0x48), |
| MFP_ADDR(SM_nCS0, 0x4c), |
| MFP_ADDR(SM_nCS1, 0x50), |
| MFP_ADDR(DF_WEn, 0x54), |
| MFP_ADDR(DF_REn, 0x58), |
| MFP_ADDR(DF_CLE_SM_OEn, 0x5c), |
| MFP_ADDR(DF_ALE_SM_WEn, 0x60), |
| MFP_ADDR(SM_SCLK, 0x64), |
| MFP_ADDR(DF_RDY0, 0x68), |
| MFP_ADDR(SM_BE0, 0x6c), |
| MFP_ADDR(SM_BE1, 0x70), |
| MFP_ADDR(SM_ADV, 0x74), |
| MFP_ADDR(DF_RDY1, 0x78), |
| MFP_ADDR(SM_ADVMUX, 0x7c), |
| MFP_ADDR(SM_RDY, 0x80), |
| |
| MFP_ADDR_X(MMC1_DAT7, MMC1_WP, 0x84), |
| |
| MFP_ADDR_END, |
| }; |
| |
| #define APMASK(i) (GPIO_REGS_VIRT + BANK_OFF(i) + 0x09c) |
| |
| static void __init pxa910_init_gpio(void) |
| { |
| int i; |
| |
| /* enable GPIO clock */ |
| __raw_writel(APBC_APBCLK | APBC_FNCLK, APBC_PXA910_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_PXA910_AP_GPIO, 0, 127, NULL); |
| } |
| |
| void __init pxa910_init_irq(void) |
| { |
| icu_init_irq(); |
| pxa910_init_gpio(); |
| } |
| |
| /* APB peripheral clocks */ |
| static APBC_CLK(uart1, PXA910_UART0, 1, 14745600); |
| static APBC_CLK(uart2, PXA910_UART1, 1, 14745600); |
| static APBC_CLK(twsi0, PXA168_TWSI0, 1, 33000000); |
| static APBC_CLK(twsi1, PXA168_TWSI1, 1, 33000000); |
| |
| /* device and clock bindings */ |
| static struct clk_lookup pxa910_clkregs[] = { |
| INIT_CLKREG(&clk_uart1, "pxa2xx-uart.0", NULL), |
| INIT_CLKREG(&clk_uart2, "pxa2xx-uart.1", NULL), |
| INIT_CLKREG(&clk_twsi0, "pxa2xx-i2c.0", NULL), |
| INIT_CLKREG(&clk_twsi1, "pxa2xx-i2c.1", NULL), |
| }; |
| |
| static int __init pxa910_init(void) |
| { |
| if (cpu_is_pxa910()) { |
| mfp_init_base(MFPR_VIRT_BASE); |
| mfp_init_addr(pxa910_mfp_addr_map); |
| pxa_init_dma(IRQ_PXA910_DMA_INT0, 32); |
| clks_register(ARRAY_AND_SIZE(pxa910_clkregs)); |
| } |
| |
| return 0; |
| } |
| postcore_initcall(pxa910_init); |
| |
| /* system timer - clock enabled, 3.25MHz */ |
| #define TIMER_CLK_RST (APBC_APBCLK | APBC_FNCLK | APBC_FNCLKSEL(3)) |
| |
| static void __init pxa910_timer_init(void) |
| { |
| /* reset and configure */ |
| __raw_writel(APBC_APBCLK | APBC_RST, APBC_PXA910_TIMERS); |
| __raw_writel(TIMER_CLK_RST, APBC_PXA910_TIMERS); |
| |
| timer_init(IRQ_PXA910_AP1_TIMER1); |
| } |
| |
| struct sys_timer pxa910_timer = { |
| .init = pxa910_timer_init, |
| }; |
| |
| /* on-chip devices */ |
| |
| /* NOTE: there are totally 3 UARTs on PXA910: |
| * |
| * UART1 - Slow UART (can be used both by AP and CP) |
| * UART2/3 - Fast UART |
| * |
| * To be backward compatible with the legacy FFUART/BTUART/STUART sequence, |
| * they are re-ordered as: |
| * |
| * pxa910_device_uart1 - UART2 as FFUART |
| * pxa910_device_uart2 - UART3 as BTUART |
| * |
| * UART1 is not used by AP for the moment. |
| */ |
| PXA910_DEVICE(uart1, "pxa2xx-uart", 0, UART2, 0xd4017000, 0x30, 21, 22); |
| PXA910_DEVICE(uart2, "pxa2xx-uart", 1, UART3, 0xd4018000, 0x30, 23, 24); |
| PXA910_DEVICE(twsi0, "pxa2xx-i2c", 0, TWSI0, 0xd4011000, 0x28); |
| PXA910_DEVICE(twsi1, "pxa2xx-i2c", 1, TWSI1, 0xd4025000, 0x28); |