summaryrefslogtreecommitdiffstats
path: root/arch/arm/plat-omap/io.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2008-10-16 11:25:32 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-16 11:25:32 -0700
commit8ef50901d3c619127858b7d7f614fcab45e09d6b (patch)
treee75a0d48029d4a5857033e4edf1cd572a5a3fc62 /arch/arm/plat-omap/io.c
parent435263702ef0fc9ffdc6301a71c03b1d9ac0f1e0 (diff)
parent2502991560dc8244dbe10e48473d85722c1e2ec1 (diff)
Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (51 commits) [ARM] 5308/1: Fix Viper ISA IRQ handling [ARM] 5307/1: pxa: fix CM-X2XX PCMCIA build error [ARM] 5306/1: pxa: fix build error on CM-X270 [ARM] 5302/1: ARM: OMAP: Revert omap3 WDT changes to avoid merge conflict [ARM] 5305/1: ARM: OMAP: Fix compile of McBSP by removing unnecessary check [ARM] 5301/1: ARM: OMAP: Add missing irq defines ARM: OMAP3: Add default kernel config for OMAP LDP ARM: OMAP3: Add basic board support for OMAP LDP ARM: OMAP3: Defconfig for the Gumstix Overo board (rev 3) ARM: OMAP3: Add support for the Gumstix Overo board (rev 3) ARM: OMAP3: Add Beagle defconfig ARM: OMAP3: Add minimal Beagle board support ARM: OMAP3: Add minimal omap3430 support ARM: OMAP2: Fix sparse, checkpatch warnings in OMAP2/3 IRQ code ARM: OMAP: Fixes to omap_mcbsp_request function ARM: OMAP: Add support for OMAP2430 in McBSP ARM: OMAP: Add support for McBSP devices 3 - 5 on 34xx ARM: OMAP: Allocate McBSP devices dynamically Fix sections for omap-mcbsp platform driver [ARM] S3C24XX: Additional include moves ...
Diffstat (limited to 'arch/arm/plat-omap/io.c')
-rw-r--r--arch/arm/plat-omap/io.c107
1 files changed, 107 insertions, 0 deletions
diff --git a/arch/arm/plat-omap/io.c b/arch/arm/plat-omap/io.c
new file mode 100644
index 00000000000..af326efc1ad
--- /dev/null
+++ b/arch/arm/plat-omap/io.c
@@ -0,0 +1,107 @@
+#include <linux/module.h>
+#include <linux/io.h>
+#include <linux/mm.h>
+
+#include <mach/omap730.h>
+#include <mach/omap1510.h>
+#include <mach/omap16xx.h>
+#include <mach/omap24xx.h>
+#include <mach/omap34xx.h>
+
+#define BETWEEN(p,st,sz) ((p) >= (st) && (p) < ((st) + (sz)))
+#define XLATE(p,pst,vst) ((void __iomem *)((p) - (pst) + (vst)))
+
+/*
+ * Intercept ioremap() requests for addresses in our fixed mapping regions.
+ */
+void __iomem *omap_ioremap(unsigned long p, size_t size, unsigned int type)
+{
+#ifdef CONFIG_ARCH_OMAP1
+ if (cpu_class_is_omap1()) {
+ if (BETWEEN(p, IO_PHYS, IO_SIZE))
+ return XLATE(p, IO_PHYS, IO_VIRT);
+ }
+ if (cpu_is_omap730()) {
+ if (BETWEEN(p, OMAP730_DSP_BASE, OMAP730_DSP_SIZE))
+ return XLATE(p, OMAP730_DSP_BASE, OMAP730_DSP_START);
+
+ if (BETWEEN(p, OMAP730_DSPREG_BASE, OMAP730_DSPREG_SIZE))
+ return XLATE(p, OMAP730_DSPREG_BASE,
+ OMAP730_DSPREG_START);
+ }
+ if (cpu_is_omap15xx()) {
+ if (BETWEEN(p, OMAP1510_DSP_BASE, OMAP1510_DSP_SIZE))
+ return XLATE(p, OMAP1510_DSP_BASE, OMAP1510_DSP_START);
+
+ if (BETWEEN(p, OMAP1510_DSPREG_BASE, OMAP1510_DSPREG_SIZE))
+ return XLATE(p, OMAP1510_DSPREG_BASE,
+ OMAP1510_DSPREG_START);
+ }
+ if (cpu_is_omap16xx()) {
+ if (BETWEEN(p, OMAP16XX_DSP_BASE, OMAP16XX_DSP_SIZE))
+ return XLATE(p, OMAP16XX_DSP_BASE, OMAP16XX_DSP_START);
+
+ if (BETWEEN(p, OMAP16XX_DSPREG_BASE, OMAP16XX_DSPREG_SIZE))
+ return XLATE(p, OMAP16XX_DSPREG_BASE,
+ OMAP16XX_DSPREG_START);
+ }
+#endif
+#ifdef CONFIG_ARCH_OMAP2
+ if (cpu_is_omap24xx()) {
+ if (BETWEEN(p, L3_24XX_PHYS, L3_24XX_SIZE))
+ return XLATE(p, L3_24XX_PHYS, L3_24XX_VIRT);
+ if (BETWEEN(p, L4_24XX_PHYS, L4_24XX_SIZE))
+ return XLATE(p, L4_24XX_PHYS, L4_24XX_VIRT);
+ }
+ if (cpu_is_omap2420()) {
+ if (BETWEEN(p, DSP_MEM_24XX_PHYS, DSP_MEM_24XX_SIZE))
+ return XLATE(p, DSP_MEM_24XX_PHYS, DSP_MEM_24XX_VIRT);
+ if (BETWEEN(p, DSP_IPI_24XX_PHYS, DSP_IPI_24XX_SIZE))
+ return XLATE(p, DSP_IPI_24XX_PHYS, DSP_IPI_24XX_SIZE);
+ if (BETWEEN(p, DSP_MMU_24XX_PHYS, DSP_MMU_24XX_SIZE))
+ return XLATE(p, DSP_MMU_24XX_PHYS, DSP_MMU_24XX_VIRT);
+ }
+ if (cpu_is_omap2430()) {
+ if (BETWEEN(p, L4_WK_243X_PHYS, L4_WK_243X_SIZE))
+ return XLATE(p, L4_WK_243X_PHYS, L4_WK_243X_VIRT);
+ if (BETWEEN(p, OMAP243X_GPMC_PHYS, OMAP243X_GPMC_SIZE))
+ return XLATE(p, OMAP243X_GPMC_PHYS, OMAP243X_GPMC_VIRT);
+ if (BETWEEN(p, OMAP243X_SDRC_PHYS, OMAP243X_SDRC_SIZE))
+ return XLATE(p, OMAP243X_SDRC_PHYS, OMAP243X_SDRC_VIRT);
+ if (BETWEEN(p, OMAP243X_SMS_PHYS, OMAP243X_SMS_SIZE))
+ return XLATE(p, OMAP243X_SMS_PHYS, OMAP243X_SMS_VIRT);
+ }
+#endif
+#ifdef CONFIG_ARCH_OMAP3
+ if (cpu_is_omap34xx()) {
+ if (BETWEEN(p, L3_34XX_PHYS, L3_34XX_SIZE))
+ return XLATE(p, L3_34XX_PHYS, L3_34XX_VIRT);
+ if (BETWEEN(p, L4_34XX_PHYS, L4_34XX_SIZE))
+ return XLATE(p, L4_34XX_PHYS, L4_34XX_VIRT);
+ if (BETWEEN(p, L4_WK_34XX_PHYS, L4_WK_34XX_SIZE))
+ return XLATE(p, L4_WK_34XX_PHYS, L4_WK_34XX_VIRT);
+ if (BETWEEN(p, OMAP34XX_GPMC_PHYS, OMAP34XX_GPMC_SIZE))
+ return XLATE(p, OMAP34XX_GPMC_PHYS, OMAP34XX_GPMC_VIRT);
+ if (BETWEEN(p, OMAP343X_SMS_PHYS, OMAP343X_SMS_SIZE))
+ return XLATE(p, OMAP343X_SMS_PHYS, OMAP343X_SMS_VIRT);
+ if (BETWEEN(p, OMAP343X_SDRC_PHYS, OMAP343X_SDRC_SIZE))
+ return XLATE(p, OMAP343X_SDRC_PHYS, OMAP343X_SDRC_VIRT);
+ if (BETWEEN(p, L4_PER_34XX_PHYS, L4_PER_34XX_SIZE))
+ return XLATE(p, L4_PER_34XX_PHYS, L4_PER_34XX_VIRT);
+ if (BETWEEN(p, L4_EMU_34XX_PHYS, L4_EMU_34XX_SIZE))
+ return XLATE(p, L4_EMU_34XX_PHYS, L4_EMU_34XX_VIRT);
+ }
+#endif
+
+ return __arm_ioremap(p, size, type);
+}
+EXPORT_SYMBOL(omap_ioremap);
+
+void omap_iounmap(volatile void __iomem *addr)
+{
+ unsigned long virt = (unsigned long)addr;
+
+ if (virt >= VMALLOC_START && virt < VMALLOC_END)
+ __iounmap(addr);
+}
+EXPORT_SYMBOL(omap_iounmap);