diff options
| -rw-r--r-- | drivers/net/mv643xx_eth.c | 51 | ||||
| -rw-r--r-- | include/linux/mv643xx_eth.h | 6 |
2 files changed, 57 insertions, 0 deletions
diff --git a/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c index eebf0d288e36..aabf1c60946d 100644 --- a/drivers/net/mv643xx_eth.c +++ b/drivers/net/mv643xx_eth.c @@ -91,6 +91,11 @@ */ #define PHY_ADDR_REG 0x0000 #define SMI_REG 0x0004 +#define WINDOW_BASE(i) (0x0200 + ((i) << 3)) +#define WINDOW_SIZE(i) (0x0204 + ((i) << 3)) +#define WINDOW_REMAP_HIGH(i) (0x0280 + ((i) << 2)) +#define WINDOW_BAR_ENABLE 0x0290 +#define WINDOW_PROTECT(i) (0x0294 + ((i) << 4)) /* * Per-port registers. @@ -512,6 +517,8 @@ struct mv643xx_shared_private { /* used to protect SMI_REG, which is shared across ports */ spinlock_t phy_lock; + + u32 win_protect; }; struct mv643xx_private { @@ -1888,6 +1895,9 @@ static int mv643xx_eth_probe(struct platform_device *pdev) mp->shared = platform_get_drvdata(pd->shared); port_num = mp->port_num = pd->port_number; + if (mp->shared->win_protect) + wrl(mp, WINDOW_PROTECT(port_num), mp->shared->win_protect); + /* set default config values */ eth_port_uc_addr_get(mp, dev->dev_addr); mp->rx_ring_size = PORT_DEFAULT_RECEIVE_QUEUE_SIZE; @@ -1992,9 +2002,44 @@ static int mv643xx_eth_remove(struct platform_device *pdev) return 0; } +static void mv643xx_eth_conf_mbus_windows(struct mv643xx_shared_private *msp, + struct mbus_dram_target_info *dram) +{ + void __iomem *base = msp->eth_base; + u32 win_enable; + u32 win_protect; + int i; + + for (i = 0; i < 6; i++) { + writel(0, base + WINDOW_BASE(i)); + writel(0, base + WINDOW_SIZE(i)); + if (i < 4) + writel(0, base + WINDOW_REMAP_HIGH(i)); + } + + win_enable = 0x3f; + win_protect = 0; + + for (i = 0; i < dram->num_cs; i++) { + struct mbus_dram_window *cs = dram->cs + i; + + writel((cs->base & 0xffff0000) | + (cs->mbus_attr << 8) | + dram->mbus_dram_target_id, base + WINDOW_BASE(i)); + writel((cs->size - 1) & 0xffff0000, base + WINDOW_SIZE(i)); + + win_enable &= ~(1 << i); + win_protect |= 3 << (2 * i); + } + + writel(win_enable, base + WINDOW_BAR_ENABLE); + msp->win_protect = win_protect; +} + static int mv643xx_eth_shared_probe(struct platform_device *pdev) { static int mv643xx_version_printed = 0; + struct mv643xx_eth_shared_platform_data *pd = pdev->dev.platform_data; struct mv643xx_shared_private *msp; struct resource *res; int ret; @@ -2021,6 +2066,12 @@ static int mv643xx_eth_shared_probe(struct platform_device *pdev) platform_set_drvdata(pdev, msp); + /* + * (Re-)program MBUS remapping windows if we are asked to. + */ + if (pd != NULL && pd->dram != NULL) + mv643xx_eth_conf_mbus_windows(msp, pd->dram); + return 0; out_free: diff --git a/include/linux/mv643xx_eth.h b/include/linux/mv643xx_eth.h index 2d59855b61c1..4801b02b444e 100644 --- a/include/linux/mv643xx_eth.h +++ b/include/linux/mv643xx_eth.h @@ -5,6 +5,8 @@ #ifndef __LINUX_MV643XX_ETH_H #define __LINUX_MV643XX_ETH_H +#include <linux/mbus.h> + #define MV643XX_ETH_SHARED_NAME "mv643xx_eth_shared" #define MV643XX_ETH_NAME "mv643xx_eth" #define MV643XX_ETH_SHARED_REGS 0x2000 @@ -13,6 +15,10 @@ #define MV643XX_ETH_SIZE_REG_4 0x2224 #define MV643XX_ETH_BASE_ADDR_ENABLE_REG 0x2290 +struct mv643xx_eth_shared_platform_data { + struct mbus_dram_target_info *dram; +}; + struct mv643xx_eth_platform_data { struct platform_device *shared; int port_number; |
