From fc0eb9f226d8ecc8e3b563bf808bd6d61a6153a1 Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Tue, 26 Aug 2008 12:56:56 +0200 Subject: [PATCH] mv643xx_eth: smi sharing is a per-unit property, not a per-port one Which top-level unit's SMI interface to use should be a property of the top-level unit, not of the individual ports. This patch moves the ->shared_smi pointer from the per-port platform data to the global platform data. Signed-off-by: Lennert Buytenhek --- arch/arm/mach-mv78xx0/common.c | 6 +++--- drivers/net/mv643xx_eth.c | 19 +++++++++++-------- include/linux/mv643xx_eth.h | 2 +- 3 files changed, 15 insertions(+), 12 deletions(-) diff --git a/arch/arm/mach-mv78xx0/common.c b/arch/arm/mach-mv78xx0/common.c index 953a26c469c..5842d3bb02b 100644 --- a/arch/arm/mach-mv78xx0/common.c +++ b/arch/arm/mach-mv78xx0/common.c @@ -330,6 +330,7 @@ void __init mv78xx0_ge00_init(struct mv643xx_eth_platform_data *eth_data) struct mv643xx_eth_shared_platform_data mv78xx0_ge01_shared_data = { .t_clk = 0, .dram = &mv78xx0_mbus_dram_info, + .shared_smi = &mv78xx0_ge00_shared, }; static struct resource mv78xx0_ge01_shared_resources[] = { @@ -370,7 +371,6 @@ static struct platform_device mv78xx0_ge01 = { void __init mv78xx0_ge01_init(struct mv643xx_eth_platform_data *eth_data) { eth_data->shared = &mv78xx0_ge01_shared; - eth_data->shared_smi = &mv78xx0_ge00_shared; mv78xx0_ge01.dev.platform_data = eth_data; platform_device_register(&mv78xx0_ge01_shared); @@ -384,6 +384,7 @@ void __init mv78xx0_ge01_init(struct mv643xx_eth_platform_data *eth_data) struct mv643xx_eth_shared_platform_data mv78xx0_ge10_shared_data = { .t_clk = 0, .dram = &mv78xx0_mbus_dram_info, + .shared_smi = &mv78xx0_ge00_shared, }; static struct resource mv78xx0_ge10_shared_resources[] = { @@ -424,7 +425,6 @@ static struct platform_device mv78xx0_ge10 = { void __init mv78xx0_ge10_init(struct mv643xx_eth_platform_data *eth_data) { eth_data->shared = &mv78xx0_ge10_shared; - eth_data->shared_smi = &mv78xx0_ge00_shared; mv78xx0_ge10.dev.platform_data = eth_data; platform_device_register(&mv78xx0_ge10_shared); @@ -438,6 +438,7 @@ void __init mv78xx0_ge10_init(struct mv643xx_eth_platform_data *eth_data) struct mv643xx_eth_shared_platform_data mv78xx0_ge11_shared_data = { .t_clk = 0, .dram = &mv78xx0_mbus_dram_info, + .shared_smi = &mv78xx0_ge00_shared, }; static struct resource mv78xx0_ge11_shared_resources[] = { @@ -478,7 +479,6 @@ static struct platform_device mv78xx0_ge11 = { void __init mv78xx0_ge11_init(struct mv643xx_eth_platform_data *eth_data) { eth_data->shared = &mv78xx0_ge11_shared; - eth_data->shared_smi = &mv78xx0_ge00_shared; mv78xx0_ge11.dev.platform_data = eth_data; platform_device_register(&mv78xx0_ge11_shared); diff --git a/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c index c41541d8710..6d3da78b7ad 100644 --- a/drivers/net/mv643xx_eth.c +++ b/drivers/net/mv643xx_eth.c @@ -247,6 +247,11 @@ struct mv643xx_eth_shared_private { */ void __iomem *base; + /* + * Points at the right SMI instance to use. + */ + struct mv643xx_eth_shared_private *smi; + /* * Protects access to SMI_REG, which is shared between ports. */ @@ -345,7 +350,6 @@ struct mv643xx_eth_private { struct net_device *dev; - struct mv643xx_eth_shared_private *shared_smi; int phy_addr; spinlock_t lock; @@ -1015,7 +1019,7 @@ static int smi_wait_ready(struct mv643xx_eth_shared_private *msp) static int smi_reg_read(struct mv643xx_eth_private *mp, unsigned int addr, unsigned int reg) { - struct mv643xx_eth_shared_private *msp = mp->shared_smi; + struct mv643xx_eth_shared_private *msp = mp->shared->smi; void __iomem *smi_reg = msp->base + SMI_REG; int ret; @@ -1053,7 +1057,7 @@ out: static int smi_reg_write(struct mv643xx_eth_private *mp, unsigned int addr, unsigned int reg, unsigned int value) { - struct mv643xx_eth_shared_private *msp = mp->shared_smi; + struct mv643xx_eth_shared_private *msp = mp->shared->smi; void __iomem *smi_reg = msp->base + SMI_REG; mutex_lock(&msp->phy_lock); @@ -2311,6 +2315,10 @@ static int mv643xx_eth_shared_probe(struct platform_device *pdev) if (msp->base == NULL) goto out_free; + msp->smi = msp; + if (pd != NULL && pd->shared_smi != NULL) + msp->smi = platform_get_drvdata(pd->shared_smi); + mutex_init(&msp->phy_lock); msp->err_interrupt = NO_IRQ; @@ -2405,13 +2413,8 @@ static void set_params(struct mv643xx_eth_private *mp, uc_addr_get(mp, dev->dev_addr); if (pd->phy_addr == -1) { - mp->shared_smi = NULL; mp->phy_addr = -1; } else { - mp->shared_smi = mp->shared; - if (pd->shared_smi != NULL) - mp->shared_smi = platform_get_drvdata(pd->shared_smi); - if (pd->force_phy_addr || pd->phy_addr) { mp->phy_addr = pd->phy_addr & 0x3f; phy_addr_set(mp, mp->phy_addr); diff --git a/include/linux/mv643xx_eth.h b/include/linux/mv643xx_eth.h index eb78b00edcd..12339eb6570 100644 --- a/include/linux/mv643xx_eth.h +++ b/include/linux/mv643xx_eth.h @@ -17,6 +17,7 @@ struct mv643xx_eth_shared_platform_data { struct mbus_dram_target_info *dram; + struct platform_device *shared_smi; unsigned int t_clk; }; @@ -30,7 +31,6 @@ struct mv643xx_eth_platform_data { /* * Whether a PHY is present, and if yes, at which address. */ - struct platform_device *shared_smi; int force_phy_addr; int phy_addr; -- 2.41.1