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author | David S. Miller <davem@davemloft.net> | 2009-11-18 22:19:03 -0800 |
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committer | David S. Miller <davem@davemloft.net> | 2009-11-18 22:19:03 -0800 |
commit | 3505d1a9fd65e2d3e00827857b6795d9d8983658 (patch) | |
tree | 941cfafdb57c427bb6b7ebf6354ee93b2a3693b5 /arch/arm/mach-realview/core.c | |
parent | dfef948ed2ba69cf041840b5e860d6b4e16fa0b1 (diff) | |
parent | 66b00a7c93ec782d118d2c03bd599cfd041e80a1 (diff) | |
download | linux-3505d1a9fd65e2d3e00827857b6795d9d8983658.tar.bz2 |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
drivers/net/sfc/sfe4001.c
drivers/net/wireless/libertas/cmd.c
drivers/staging/Kconfig
drivers/staging/Makefile
drivers/staging/rtl8187se/Kconfig
drivers/staging/rtl8192e/Kconfig
Diffstat (limited to 'arch/arm/mach-realview/core.c')
-rw-r--r-- | arch/arm/mach-realview/core.c | 42 |
1 files changed, 41 insertions, 1 deletions
diff --git a/arch/arm/mach-realview/core.c b/arch/arm/mach-realview/core.c index a2083b60e3fb..9f293438e020 100644 --- a/arch/arm/mach-realview/core.c +++ b/arch/arm/mach-realview/core.c @@ -59,6 +59,25 @@ /* used by entry-macro.S and platsmp.c */ void __iomem *gic_cpu_base_addr; +#ifdef CONFIG_ZONE_DMA +/* + * Adjust the zones if there are restrictions for DMA access. + */ +void __init realview_adjust_zones(int node, unsigned long *size, + unsigned long *hole) +{ + unsigned long dma_size = SZ_256M >> PAGE_SHIFT; + + if (!machine_is_realview_pbx() || node || (size[0] <= dma_size)) + return; + + size[ZONE_NORMAL] = size[0] - dma_size; + size[ZONE_DMA] = dma_size; + hole[ZONE_NORMAL] = hole[0]; + hole[ZONE_DMA] = 0; +} +#endif + /* * This is the RealView sched_clock implementation. This has * a resolution of 41.7ns, and a maximum value of about 179s. @@ -543,7 +562,7 @@ static int realview_clcd_setup(struct clcd_fb *fb) fb->panel = realview_clcd_panel(); fb->fb.screen_base = dma_alloc_writecombine(&fb->dev->dev, framesize, - &dma, GFP_KERNEL); + &dma, GFP_KERNEL | GFP_DMA); if (!fb->fb.screen_base) { printk(KERN_ERR "CLCD: unable to map framebuffer\n"); return -ENOMEM; @@ -788,3 +807,24 @@ void __init realview_timer_init(unsigned int timer_irq) realview_clocksource_init(); realview_clockevents_init(timer_irq); } + +/* + * Setup the memory banks. + */ +void realview_fixup(struct machine_desc *mdesc, struct tag *tags, char **from, + struct meminfo *meminfo) +{ + /* + * Most RealView platforms have 512MB contiguous RAM at 0x70000000. + * Half of this is mirrored at 0. + */ +#ifdef CONFIG_REALVIEW_HIGH_PHYS_OFFSET + meminfo->bank[0].start = 0x70000000; + meminfo->bank[0].size = SZ_512M; + meminfo->nr_banks = 1; +#else + meminfo->bank[0].start = 0; + meminfo->bank[0].size = SZ_256M; + meminfo->nr_banks = 1; +#endif +} |