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author | Arnd Bergmann <arnd@arndb.de> | 2012-09-04 15:01:37 +0200 |
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committer | Arnd Bergmann <arnd@arndb.de> | 2012-09-04 15:01:37 +0200 |
commit | 863e99a8c1ea2b0391491904297f57a0f6a1fdd6 (patch) | |
tree | 0e7789f83c0ba3a1bc3c19d3ccf5ea6f84f19db6 /arch/arm/mach-integrator | |
parent | dd9bf78040fa0da4cecc228e1682b9682b8cb180 (diff) | |
parent | a849088aa1552b1a28eea3daff599ee22a734ae3 (diff) | |
download | op-kernel-dev-863e99a8c1ea2b0391491904297f57a0f6a1fdd6.zip op-kernel-dev-863e99a8c1ea2b0391491904297f57a0f6a1fdd6.tar.gz |
Merge commit 'a849088aa1' from rmk/fixes into cleanup/io-pci
As Stephen Rothwell reports, a849088aa155 ("ARM: Fix ioremap() of
address zero") from the arm-current tree and commit c2794437091a ("ARM:
Add fixed PCI i/o mapping") from the arm-soc tree conflict in
a nontrivial way in arch/arm/mm/mmu.c.
Rob Herring explains:
The PCI i/o reserved area has a dummy physical address of 0 and
needs to be skipped by ioremap searches. So we don't set
VM_ARM_STATIC_MAPPING to prevent matches by ioremap. The vm_struct
settings don't really matter when we do the real mapping of the
i/o space.
Since commit a849088aa155 is at the start of the fixes branch
in the arm tree, we can merge it into the branch that contains
the other ioremap changes.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-integrator')
-rw-r--r-- | arch/arm/mach-integrator/core.c | 56 | ||||
-rw-r--r-- | arch/arm/mach-integrator/include/mach/clkdev.h | 26 | ||||
-rw-r--r-- | arch/arm/mach-integrator/integrator_ap.c | 10 | ||||
-rw-r--r-- | arch/arm/mach-integrator/integrator_cp.c | 69 |
4 files changed, 19 insertions, 142 deletions
diff --git a/arch/arm/mach-integrator/core.c b/arch/arm/mach-integrator/core.c index eaf6c63..3fa6c51 100644 --- a/arch/arm/mach-integrator/core.c +++ b/arch/arm/mach-integrator/core.c @@ -11,6 +11,7 @@ #include <linux/kernel.h> #include <linux/init.h> #include <linux/device.h> +#include <linux/export.h> #include <linux/spinlock.h> #include <linux/interrupt.h> #include <linux/irq.h> @@ -21,7 +22,6 @@ #include <linux/amba/bus.h> #include <linux/amba/serial.h> #include <linux/io.h> -#include <linux/clkdev.h> #include <mach/hardware.h> #include <mach/platform.h> @@ -41,17 +41,17 @@ static struct amba_pl010_data integrator_uart_data; #define KMI0_IRQ { IRQ_KMIINT0 } #define KMI1_IRQ { IRQ_KMIINT1 } -static AMBA_APB_DEVICE(rtc, "mb:15", 0, +static AMBA_APB_DEVICE(rtc, "rtc", 0, INTEGRATOR_RTC_BASE, INTEGRATOR_RTC_IRQ, NULL); -static AMBA_APB_DEVICE(uart0, "mb:16", 0, +static AMBA_APB_DEVICE(uart0, "uart0", 0, INTEGRATOR_UART0_BASE, INTEGRATOR_UART0_IRQ, &integrator_uart_data); -static AMBA_APB_DEVICE(uart1, "mb:17", 0, +static AMBA_APB_DEVICE(uart1, "uart1", 0, INTEGRATOR_UART1_BASE, INTEGRATOR_UART1_IRQ, &integrator_uart_data); -static AMBA_APB_DEVICE(kmi0, "mb:18", 0, KMI0_BASE, KMI0_IRQ, NULL); -static AMBA_APB_DEVICE(kmi1, "mb:19", 0, KMI1_BASE, KMI1_IRQ, NULL); +static AMBA_APB_DEVICE(kmi0, "kmi0", 0, KMI0_BASE, KMI0_IRQ, NULL); +static AMBA_APB_DEVICE(kmi1, "kmi1", 0, KMI1_BASE, KMI1_IRQ, NULL); static struct amba_device *amba_devs[] __initdata = { &rtc_device, @@ -61,50 +61,6 @@ static struct amba_device *amba_devs[] __initdata = { &kmi1_device, }; -/* - * These are fixed clocks. - */ -static struct clk clk24mhz = { - .rate = 24000000, -}; - -static struct clk uartclk = { - .rate = 14745600, -}; - -static struct clk dummy_apb_pclk; - -static struct clk_lookup lookups[] = { - { /* Bus clock */ - .con_id = "apb_pclk", - .clk = &dummy_apb_pclk, - }, { - /* Integrator/AP timer frequency */ - .dev_id = "ap_timer", - .clk = &clk24mhz, - }, { /* UART0 */ - .dev_id = "mb:16", - .clk = &uartclk, - }, { /* UART1 */ - .dev_id = "mb:17", - .clk = &uartclk, - }, { /* KMI0 */ - .dev_id = "mb:18", - .clk = &clk24mhz, - }, { /* KMI1 */ - .dev_id = "mb:19", - .clk = &clk24mhz, - }, { /* MMCI - IntegratorCP */ - .dev_id = "mb:1c", - .clk = &uartclk, - } -}; - -void __init integrator_init_early(void) -{ - clkdev_add_table(lookups, ARRAY_SIZE(lookups)); -} - static int __init integrator_init(void) { int i; diff --git a/arch/arm/mach-integrator/include/mach/clkdev.h b/arch/arm/mach-integrator/include/mach/clkdev.h deleted file mode 100644 index bfe0767..0000000 --- a/arch/arm/mach-integrator/include/mach/clkdev.h +++ /dev/null @@ -1,26 +0,0 @@ -#ifndef __ASM_MACH_CLKDEV_H -#define __ASM_MACH_CLKDEV_H - -#include <linux/module.h> -#include <plat/clock.h> - -struct clk { - unsigned long rate; - const struct clk_ops *ops; - struct module *owner; - const struct icst_params *params; - void __iomem *vcoreg; - void *data; -}; - -static inline int __clk_get(struct clk *clk) -{ - return try_module_get(clk->owner); -} - -static inline void __clk_put(struct clk *clk) -{ - module_put(clk->owner); -} - -#endif diff --git a/arch/arm/mach-integrator/integrator_ap.c b/arch/arm/mach-integrator/integrator_ap.c index fd3bdf8..fd3ef28 100644 --- a/arch/arm/mach-integrator/integrator_ap.c +++ b/arch/arm/mach-integrator/integrator_ap.c @@ -33,6 +33,7 @@ #include <linux/io.h> #include <linux/mtd/physmap.h> #include <linux/clk.h> +#include <linux/platform_data/clk-integrator.h> #include <video/vga.h> #include <mach/hardware.h> @@ -171,6 +172,7 @@ static void __init ap_init_irq(void) fpga_irq_init(VA_IC_BASE, "SC", IRQ_PIC_START, -1, INTEGRATOR_SC_VALID_INT, NULL); + integrator_clk_init(false); } #ifdef CONFIG_PM @@ -437,6 +439,10 @@ static void integrator_clockevent_init(unsigned long inrate) 0xffffU); } +void __init ap_init_early(void) +{ +} + /* * Set up timer(s). */ @@ -447,7 +453,7 @@ static void __init ap_init_timer(void) clk = clk_get_sys("ap_timer", NULL); BUG_ON(IS_ERR(clk)); - clk_enable(clk); + clk_prepare_enable(clk); rate = clk_get_rate(clk); writel(0, TIMER0_VA_BASE + TIMER_CTRL); @@ -468,7 +474,7 @@ MACHINE_START(INTEGRATOR, "ARM-Integrator") .reserve = integrator_reserve, .map_io = ap_map_io, .nr_irqs = NR_IRQS_INTEGRATOR_AP, - .init_early = integrator_init_early, + .init_early = ap_init_early, .init_irq = ap_init_irq, .handle_irq = fpga_handle_irq, .timer = &ap_timer, diff --git a/arch/arm/mach-integrator/integrator_cp.c b/arch/arm/mach-integrator/integrator_cp.c index a56c536..82d5c83 100644 --- a/arch/arm/mach-integrator/integrator_cp.c +++ b/arch/arm/mach-integrator/integrator_cp.c @@ -21,8 +21,8 @@ #include <linux/amba/mmci.h> #include <linux/io.h> #include <linux/gfp.h> -#include <linux/clkdev.h> #include <linux/mtd/physmap.h> +#include <linux/platform_data/clk-integrator.h> #include <mach/hardware.h> #include <mach/platform.h> @@ -171,65 +171,10 @@ static void __init intcp_init_irq(void) fpga_irq_init(INTCP_VA_SIC_BASE, "SIC", IRQ_SIC_START, IRQ_CP_CPPLDINT, sic_mask, NULL); + integrator_clk_init(true); } /* - * Clock handling - */ -#define CM_LOCK (__io_address(INTEGRATOR_HDR_BASE)+INTEGRATOR_HDR_LOCK_OFFSET) -#define CM_AUXOSC (__io_address(INTEGRATOR_HDR_BASE)+0x1c) - -static const struct icst_params cp_auxvco_params = { - .ref = 24000000, - .vco_max = ICST525_VCO_MAX_5V, - .vco_min = ICST525_VCO_MIN, - .vd_min = 8, - .vd_max = 263, - .rd_min = 3, - .rd_max = 65, - .s2div = icst525_s2div, - .idx2s = icst525_idx2s, -}; - -static void cp_auxvco_set(struct clk *clk, struct icst_vco vco) -{ - u32 val; - - val = readl(clk->vcoreg) & ~0x7ffff; - val |= vco.v | (vco.r << 9) | (vco.s << 16); - - writel(0xa05f, CM_LOCK); - writel(val, clk->vcoreg); - writel(0, CM_LOCK); -} - -static const struct clk_ops cp_auxclk_ops = { - .round = icst_clk_round, - .set = icst_clk_set, - .setvco = cp_auxvco_set, -}; - -static struct clk cp_auxclk = { - .ops = &cp_auxclk_ops, - .params = &cp_auxvco_params, - .vcoreg = CM_AUXOSC, -}; - -static struct clk sp804_clk = { - .rate = 1000000, -}; - -static struct clk_lookup cp_lookups[] = { - { /* CLCD */ - .dev_id = "mb:c0", - .clk = &cp_auxclk, - }, { /* SP804 timers */ - .dev_id = "sp804", - .clk = &sp804_clk, - }, -}; - -/* * Flash handling. */ static int intcp_flash_init(struct platform_device *dev) @@ -336,10 +281,10 @@ static struct mmci_platform_data mmc_data = { #define INTEGRATOR_CP_MMC_IRQS { IRQ_CP_MMCIINT0, IRQ_CP_MMCIINT1 } #define INTEGRATOR_CP_AACI_IRQS { IRQ_CP_AACIINT } -static AMBA_APB_DEVICE(mmc, "mb:1c", 0, INTEGRATOR_CP_MMC_BASE, +static AMBA_APB_DEVICE(mmc, "mmci", 0, INTEGRATOR_CP_MMC_BASE, INTEGRATOR_CP_MMC_IRQS, &mmc_data); -static AMBA_APB_DEVICE(aaci, "mb:1d", 0, INTEGRATOR_CP_AACI_BASE, +static AMBA_APB_DEVICE(aaci, "aaci", 0, INTEGRATOR_CP_AACI_BASE, INTEGRATOR_CP_AACI_IRQS, NULL); @@ -393,7 +338,7 @@ static struct clcd_board clcd_data = { .remove = versatile_clcd_remove_dma, }; -static AMBA_AHB_DEVICE(clcd, "mb:c0", 0, INTCP_PA_CLCD_BASE, +static AMBA_AHB_DEVICE(clcd, "clcd", 0, INTCP_PA_CLCD_BASE, { IRQ_CP_CLCDCINT }, &clcd_data); static struct amba_device *amba_devs[] __initdata = { @@ -406,10 +351,6 @@ static struct amba_device *amba_devs[] __initdata = { static void __init intcp_init_early(void) { - clkdev_add_table(cp_lookups, ARRAY_SIZE(cp_lookups)); - - integrator_init_early(); - #ifdef CONFIG_PLAT_VERSATILE_SCHED_CLOCK versatile_sched_clock_init(REFCOUNTER, 24000000); #endif |