net: mvpp2: enable building on 64-bit platforms

The mvpp2 is going to be extended to support the Marvell Armada 7K/8K
platform, which is ARM64. As a preparation to this work, this commit
enables building the mvpp2 driver on ARM64, by:

 - Adjusting the Kconfig dependency

 - Fixing the types used in the driver so that they are 32/64-bits
   compliant. We use dma_addr_t for DMA addresses, and unsigned long
   for virtual addresses.

It is worth mentioning that after this commit, the driver is for now
still only used on 32-bits platforms, and will only work on 32-bits
platforms.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/marvell/Kconfig b/drivers/net/ethernet/marvell/Kconfig
index f4b7cf1..d2555e8 100644 (file)
--- a/drivers/net/ethernet/marvell/Kconfig
+++ b/drivers/net/ethernet/marvell/Kconfig
@@ -83,9 +83,8 @@ config MVNETA_BM
 
 config MVPP2
        tristate "Marvell Armada 375 network interface support"
-       depends on MACH_ARMADA_375 || COMPILE_TEST
+       depends on ARCH_MVEBU || COMPILE_TEST
        depends on HAS_DMA
-       depends on !64BIT
        select MVMDIO
        ---help---
          This driver supports the network interface units in the

diff --git a/drivers/net/ethernet/marvell/mvpp2.c b/drivers/net/ethernet/marvell/mvpp2.c
index 735a04e..d00421b 100644 (file)
--- a/drivers/net/ethernet/marvell/mvpp2.c
+++ b/drivers/net/ethernet/marvell/mvpp2.c
@@ -3388,7 +3388,8 @@ static int mvpp2_bm_pool_create(struct platform_device *pdev,
        if (!bm_pool->virt_addr)
                return -ENOMEM;
 
-       if (!IS_ALIGNED((u32)bm_pool->virt_addr, MVPP2_BM_POOL_PTR_ALIGN)) {
+       if (!IS_ALIGNED((unsigned long)bm_pool->virt_addr,
+                       MVPP2_BM_POOL_PTR_ALIGN)) {
                dma_free_coherent(&pdev->dev, size_bytes, bm_pool->virt_addr,
                                  bm_pool->phys_addr);
                dev_err(&pdev->dev, "BM pool %d is not %d bytes aligned\n",
@@ -3433,7 +3434,7 @@ static void mvpp2_bm_bufs_free(struct device *dev, struct mvpp2 *priv,
 
        for (i = 0; i < bm_pool->buf_num; i++) {
                dma_addr_t buf_phys_addr;
-               u32 vaddr;
+               unsigned long vaddr;
 
                /* Get buffer virtual address (indirect access) */
                buf_phys_addr = mvpp2_read(priv,
@@ -3596,14 +3597,15 @@ static inline u32 mvpp2_bm_cookie_pool_set(u32 cookie, int pool)
 }
 
 /* Get pool number from a BM cookie */
-static inline int mvpp2_bm_cookie_pool_get(u32 cookie)
+static inline int mvpp2_bm_cookie_pool_get(unsigned long cookie)
 {
        return (cookie >> MVPP2_BM_COOKIE_POOL_OFFS) & 0xFF;
 }
 
 /* Release buffer to BM */
 static inline void mvpp2_bm_pool_put(struct mvpp2_port *port, int pool,
-                                    u32 buf_phys_addr, u32 buf_virt_addr)
+                                    dma_addr_t buf_phys_addr,
+                                    unsigned long buf_virt_addr)
 {
        mvpp2_write(port->priv, MVPP2_BM_VIRT_RLS_REG, buf_virt_addr);
        mvpp2_write(port->priv, MVPP2_BM_PHY_RLS_REG(pool), buf_phys_addr);
@@ -3611,7 +3613,8 @@ static inline void mvpp2_bm_pool_put(struct mvpp2_port *port, int pool,
 
 /* Release multicast buffer */
 static void mvpp2_bm_pool_mc_put(struct mvpp2_port *port, int pool,
-                                u32 buf_phys_addr, u32 buf_virt_addr,
+                                dma_addr_t buf_phys_addr,
+                                unsigned long buf_virt_addr,
                                 int mc_id)
 {
        u32 val = 0;
@@ -3626,7 +3629,8 @@ static void mvpp2_bm_pool_mc_put(struct mvpp2_port *port, int pool,
 
 /* Refill BM pool */
 static void mvpp2_pool_refill(struct mvpp2_port *port, u32 bm,
-                             u32 phys_addr, u32 cookie)
+                             dma_addr_t phys_addr,
+                             unsigned long cookie)
 {
        int pool = mvpp2_bm_cookie_pool_get(bm);
 
@@ -3657,7 +3661,8 @@ static int mvpp2_bm_bufs_add(struct mvpp2_port *port,
                if (!buf)
                        break;
 
-               mvpp2_bm_pool_put(port, bm_pool->id, (u32)phys_addr, (u32)buf);
+               mvpp2_bm_pool_put(port, bm_pool->id, phys_addr,
+                                 (unsigned long)buf);
        }
 
        /* Update BM driver with number of buffers added to pool */
@@ -5034,7 +5039,7 @@ static int mvpp2_rx_refill(struct mvpp2_port *port,
        if (!buf)
                return -ENOMEM;
 
-       mvpp2_pool_refill(port, bm, (u32)phys_addr, (u32)buf);
+       mvpp2_pool_refill(port, bm, phys_addr, (unsigned long)buf);
 
        return 0;
 }
@@ -5076,10 +5081,10 @@ static void mvpp2_buff_hdr_rx(struct mvpp2_port *port,
        struct mvpp2_buff_hdr *buff_hdr;
        struct sk_buff *skb;
        u32 rx_status = rx_desc->status;
-       u32 buff_phys_addr;
-       u32 buff_virt_addr;
-       u32 buff_phys_addr_next;
-       u32 buff_virt_addr_next;
+       dma_addr_t buff_phys_addr;
+       unsigned long buff_virt_addr;
+       dma_addr_t buff_phys_addr_next;
+       unsigned long buff_virt_addr_next;
        int mc_id;
        int pool_id;
 
@@ -5136,7 +5141,7 @@ static int mvpp2_rx(struct mvpp2_port *port, int rx_todo,
                rx_status = rx_desc->status;
                rx_bytes = rx_desc->data_size - MVPP2_MH_SIZE;
                phys_addr = rx_desc->buf_phys_addr;
-               data = (void *)rx_desc->buf_cookie;
+               data = (void *)(uintptr_t)rx_desc->buf_cookie;
 
                bm = mvpp2_bm_cookie_build(rx_desc);
                pool = mvpp2_bm_cookie_pool_get(bm);