diff options
Diffstat (limited to 'drivers/iommu/sandbox_iommu.c')
| -rw-r--r-- | drivers/iommu/sandbox_iommu.c | 35 |
1 files changed, 6 insertions, 29 deletions
diff --git a/drivers/iommu/sandbox_iommu.c b/drivers/iommu/sandbox_iommu.c index e37976f86f0..c5eefec2185 100644 --- a/drivers/iommu/sandbox_iommu.c +++ b/drivers/iommu/sandbox_iommu.c @@ -5,28 +5,20 @@ #include <dm.h> #include <iommu.h> -#include <lmb.h> #include <asm/io.h> +#include <asm/test.h> #include <linux/sizes.h> -#define IOMMU_PAGE_SIZE SZ_4K - -struct sandbox_iommu_priv { - struct lmb lmb; -}; - static dma_addr_t sandbox_iommu_map(struct udevice *dev, void *addr, size_t size) { - struct sandbox_iommu_priv *priv = dev_get_priv(dev); phys_addr_t paddr, dva; phys_size_t psize, off; - paddr = ALIGN_DOWN(virt_to_phys(addr), IOMMU_PAGE_SIZE); + paddr = ALIGN_DOWN(virt_to_phys(addr), SANDBOX_IOMMU_PAGE_SIZE); off = virt_to_phys(addr) - paddr; - psize = ALIGN(size + off, IOMMU_PAGE_SIZE); - - dva = lmb_alloc(&priv->lmb, psize, IOMMU_PAGE_SIZE); + psize = ALIGN(size + off, SANDBOX_IOMMU_PAGE_SIZE); + dva = (phys_addr_t)SANDBOX_IOMMU_DVA_ADDR; return dva + off; } @@ -34,15 +26,12 @@ static dma_addr_t sandbox_iommu_map(struct udevice *dev, void *addr, static void sandbox_iommu_unmap(struct udevice *dev, dma_addr_t addr, size_t size) { - struct sandbox_iommu_priv *priv = dev_get_priv(dev); phys_addr_t dva; phys_size_t psize; - dva = ALIGN_DOWN(addr, IOMMU_PAGE_SIZE); + dva = ALIGN_DOWN(addr, SANDBOX_IOMMU_PAGE_SIZE); psize = size + (addr - dva); - psize = ALIGN(psize, IOMMU_PAGE_SIZE); - - lmb_free(&priv->lmb, dva, psize); + psize = ALIGN(psize, SANDBOX_IOMMU_PAGE_SIZE); } static struct iommu_ops sandbox_iommu_ops = { @@ -50,16 +39,6 @@ static struct iommu_ops sandbox_iommu_ops = { .unmap = sandbox_iommu_unmap, }; -static int sandbox_iommu_probe(struct udevice *dev) -{ - struct sandbox_iommu_priv *priv = dev_get_priv(dev); - - lmb_init(&priv->lmb); - lmb_add(&priv->lmb, 0x89abc000, SZ_16K); - - return 0; -} - static const struct udevice_id sandbox_iommu_ids[] = { { .compatible = "sandbox,iommu" }, { /* sentinel */ } @@ -69,7 +48,5 @@ U_BOOT_DRIVER(sandbox_iommu) = { .name = "sandbox_iommu", .id = UCLASS_IOMMU, .of_match = sandbox_iommu_ids, - .priv_auto = sizeof(struct sandbox_iommu_priv), .ops = &sandbox_iommu_ops, - .probe = sandbox_iommu_probe, }; |