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Diffstat (limited to 'arch/arm/mach-bcmring/core.c')
| -rw-r--r-- | arch/arm/mach-bcmring/core.c | 227 |
1 files changed, 0 insertions, 227 deletions
diff --git a/arch/arm/mach-bcmring/core.c b/arch/arm/mach-bcmring/core.c deleted file mode 100644 index 4b50228a677..00000000000 --- a/arch/arm/mach-bcmring/core.c +++ /dev/null @@ -1,227 +0,0 @@ -/* - * derived from linux/arch/arm/mach-versatile/core.c - * linux/arch/arm/mach-bcmring/core.c - * - * Copyright (C) 1999 - 2003 ARM Limited - * Copyright (C) 2000 Deep Blue Solutions Ltd - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ -/* Portions copyright Broadcom 2008 */ - -#include <linux/init.h> -#include <linux/device.h> -#include <linux/dma-mapping.h> -#include <linux/platform_device.h> -#include <linux/interrupt.h> -#include <linux/amba/bus.h> -#include <linux/clkdev.h> - -#include <mach/csp/mm_addr.h> -#include <mach/hardware.h> -#include <linux/io.h> -#include <asm/irq.h> -#include <asm/hardware/arm_timer.h> -#include <asm/hardware/timer-sp.h> -#include <asm/mach-types.h> - -#include <asm/mach/arch.h> -#include <asm/mach/flash.h> -#include <asm/mach/irq.h> -#include <asm/mach/time.h> -#include <asm/mach/map.h> - -#include <mach/cfg_global.h> - -#include "clock.h" - -#include <mach/csp/secHw_def.h> -#include <mach/csp/chipcHw_inline.h> -#include <mach/csp/tmrHw_reg.h> - -static AMBA_APB_DEVICE(uartA, "uartA", 0, MM_ADDR_IO_UARTA, {IRQ_UARTA}, NULL); -static AMBA_APB_DEVICE(uartB, "uartB", 0, MM_ADDR_IO_UARTB, {IRQ_UARTB}, NULL); - -static struct clk pll1_clk = { - .name = "PLL1", - .type = CLK_TYPE_PRIMARY | CLK_TYPE_PLL1, - .rate_hz = 2000000000, - .use_cnt = 7, -}; - -static struct clk uart_clk = { - .name = "UART", - .type = CLK_TYPE_PROGRAMMABLE, - .csp_id = chipcHw_CLOCK_UART, - .rate_hz = HW_CFG_UART_CLK_HZ, - .parent = &pll1_clk, -}; - -static struct clk dummy_apb_pclk = { - .name = "BUSCLK", - .type = CLK_TYPE_PRIMARY, - .mode = CLK_MODE_XTAL, -}; - -/* Timer 0 - 25 MHz, Timer3 at bus clock rate, typically 150-166 MHz */ -#if defined(CONFIG_ARCH_FPGA11107) -/* fpga cpu/bus are currently 30 times slower so scale frequency as well to */ -/* slow down Linux's sense of time */ -#define TIMER0_FREQUENCY_MHZ (tmrHw_LOW_FREQUENCY_MHZ * 30) -#define TIMER1_FREQUENCY_MHZ (tmrHw_LOW_FREQUENCY_MHZ * 30) -#define TIMER3_FREQUENCY_MHZ (tmrHw_HIGH_FREQUENCY_MHZ * 30) -#define TIMER3_FREQUENCY_KHZ (tmrHw_HIGH_FREQUENCY_HZ / 1000 * 30) -#else -#define TIMER0_FREQUENCY_MHZ tmrHw_LOW_FREQUENCY_MHZ -#define TIMER1_FREQUENCY_MHZ tmrHw_LOW_FREQUENCY_MHZ -#define TIMER3_FREQUENCY_MHZ tmrHw_HIGH_FREQUENCY_MHZ -#define TIMER3_FREQUENCY_KHZ (tmrHw_HIGH_FREQUENCY_HZ / 1000) -#endif - -static struct clk sp804_timer012_clk = { - .name = "sp804-timer-0,1,2", - .type = CLK_TYPE_PRIMARY, - .mode = CLK_MODE_XTAL, - .rate_hz = TIMER1_FREQUENCY_MHZ * 1000000, -}; - -static struct clk sp804_timer3_clk = { - .name = "sp804-timer-3", - .type = CLK_TYPE_PRIMARY, - .mode = CLK_MODE_XTAL, - .rate_hz = TIMER3_FREQUENCY_KHZ * 1000, -}; - -static struct clk_lookup lookups[] = { - { /* Bus clock */ - .con_id = "apb_pclk", - .clk = &dummy_apb_pclk, - }, { /* UART0 */ - .dev_id = "uarta", - .clk = &uart_clk, - }, { /* UART1 */ - .dev_id = "uartb", - .clk = &uart_clk, - }, { /* SP804 timer 0 */ - .dev_id = "sp804", - .con_id = "timer0", - .clk = &sp804_timer012_clk, - }, { /* SP804 timer 1 */ - .dev_id = "sp804", - .con_id = "timer1", - .clk = &sp804_timer012_clk, - }, { /* SP804 timer 3 */ - .dev_id = "sp804", - .con_id = "timer3", - .clk = &sp804_timer3_clk, - } -}; - -static struct amba_device *amba_devs[] __initdata = { - &uartA_device, - &uartB_device, -}; - -void __init bcmring_amba_init(void) -{ - int i; - u32 bus_clock; - -/* Linux is run initially in non-secure mode. Secure peripherals */ -/* generate FIQ, and must be handled in secure mode. Until we have */ -/* a linux security monitor implementation, keep everything in */ -/* non-secure mode. */ - chipcHw_busInterfaceClockEnable(chipcHw_REG_BUS_CLOCK_SPU); - secHw_setUnsecure(secHw_BLK_MASK_CHIP_CONTROL | - secHw_BLK_MASK_KEY_SCAN | - secHw_BLK_MASK_TOUCH_SCREEN | - secHw_BLK_MASK_UART0 | - secHw_BLK_MASK_UART1 | - secHw_BLK_MASK_WATCHDOG | - secHw_BLK_MASK_SPUM | - secHw_BLK_MASK_DDR2 | - secHw_BLK_MASK_SPU | - secHw_BLK_MASK_PKA | - secHw_BLK_MASK_RNG | - secHw_BLK_MASK_RTC | - secHw_BLK_MASK_OTP | - secHw_BLK_MASK_BOOT | - secHw_BLK_MASK_MPU | - secHw_BLK_MASK_TZCTRL | secHw_BLK_MASK_INTR); - - /* Only the devices attached to the AMBA bus are enabled just before the bus is */ - /* scanned and the drivers are loaded. The clocks need to be on for the AMBA bus */ - /* driver to access these blocks. The bus is probed, and the drivers are loaded. */ - /* FIXME Need to remove enable of PIF once CLCD clock enable used properly in FPGA. */ - bus_clock = chipcHw_REG_BUS_CLOCK_GE - | chipcHw_REG_BUS_CLOCK_SDIO0 | chipcHw_REG_BUS_CLOCK_SDIO1; - - chipcHw_busInterfaceClockEnable(bus_clock); - - for (i = 0; i < ARRAY_SIZE(amba_devs); i++) { - struct amba_device *d = amba_devs[i]; - amba_device_register(d, &iomem_resource); - } -} - -/* - * Where is the timer (VA)? - */ -#define TIMER0_VA_BASE ((void __iomem *)MM_IO_BASE_TMR) -#define TIMER1_VA_BASE ((void __iomem *)(MM_IO_BASE_TMR + 0x20)) -#define TIMER2_VA_BASE ((void __iomem *)(MM_IO_BASE_TMR + 0x40)) -#define TIMER3_VA_BASE ((void __iomem *)(MM_IO_BASE_TMR + 0x60)) - -static int __init bcmring_clocksource_init(void) -{ - /* setup timer1 as free-running clocksource */ - sp804_clocksource_init(TIMER1_VA_BASE, "timer1"); - - /* setup timer3 as free-running clocksource */ - sp804_clocksource_init(TIMER3_VA_BASE, "timer3"); - - return 0; -} - -/* - * Set up timer interrupt, and return the current time in seconds. - */ -void __init bcmring_init_timer(void) -{ - printk(KERN_INFO "bcmring_init_timer\n"); - /* - * Initialise to a known state (all timers off) - */ - writel(0, TIMER0_VA_BASE + TIMER_CTRL); - writel(0, TIMER1_VA_BASE + TIMER_CTRL); - writel(0, TIMER2_VA_BASE + TIMER_CTRL); - writel(0, TIMER3_VA_BASE + TIMER_CTRL); - - /* - * Make irqs happen for the system timer - */ - bcmring_clocksource_init(); - - sp804_clockevents_init(TIMER0_VA_BASE, IRQ_TIMER0, "timer0"); -} - -struct sys_timer bcmring_timer = { - .init = bcmring_init_timer, -}; - -void __init bcmring_init_early(void) -{ - clkdev_add_table(lookups, ARRAY_SIZE(lookups)); -} |