From 9efaca3e847696ed40fca1dbbc621fcc35b8d94c Mon Sep 17 00:00:00 2001 From: Scott Wood Date: Fri, 17 Apr 2015 09:19:01 -0500 Subject: [PATCH] ahci: mmio_base is a virtual address Don't store it in a u32. Don't dereference the bus address as if it were a virtual address (fixes 284231e49a2b4 ("ahci: Support splitting of read transactions into multiple chunks")). Fixes crash on boot in MPC8641HPCN_36BIT target. Signed-off-by: Scott Wood Cc: Vadim Bendebury Acked-by: York Sun --- arch/arm/cpu/armv7/omap-common/boot-common.c | 2 +- arch/arm/cpu/armv7/omap-common/sata.c | 6 +++--- board/highbank/highbank.c | 2 +- board/sunxi/ahci.c | 2 +- drivers/block/ahci.c | 11 ++++++----- drivers/block/dwc_ahsata.c | 2 +- include/ahci.h | 6 +++--- 7 files changed, 16 insertions(+), 15 deletions(-) diff --git a/arch/arm/cpu/armv7/omap-common/boot-common.c b/arch/arm/cpu/armv7/omap-common/boot-common.c index 17500f2..f2f6897 100644 --- a/arch/arm/cpu/armv7/omap-common/boot-common.c +++ b/arch/arm/cpu/armv7/omap-common/boot-common.c @@ -159,6 +159,6 @@ void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image) #ifdef CONFIG_SCSI_AHCI_PLAT void arch_preboot_os(void) { - ahci_reset(DWC_AHSATA_BASE); + ahci_reset((void __iomem *)DWC_AHSATA_BASE); } #endif diff --git a/arch/arm/cpu/armv7/omap-common/sata.c b/arch/arm/cpu/armv7/omap-common/sata.c index d18bc50..2c2d1bc 100644 --- a/arch/arm/cpu/armv7/omap-common/sata.c +++ b/arch/arm/cpu/armv7/omap-common/sata.c @@ -69,7 +69,7 @@ int init_sata(int dev) val = TI_SATA_IDLE_NO | TI_SATA_STANDBY_NO; writel(val, TI_SATA_WRAPPER_BASE + TI_SATA_SYSCONFIG); - ret = ahci_init(DWC_AHSATA_BASE); + ret = ahci_init((void __iomem *)DWC_AHSATA_BASE); return ret; } @@ -88,6 +88,6 @@ void scsi_init(void) void scsi_bus_reset(void) { - ahci_reset(DWC_AHSATA_BASE); - ahci_init(DWC_AHSATA_BASE); + ahci_reset((void __iomem *)DWC_AHSATA_BASE); + ahci_init((void __iomem *)DWC_AHSATA_BASE); } diff --git a/board/highbank/highbank.c b/board/highbank/highbank.c index fc2385c..ba1beb5 100644 --- a/board/highbank/highbank.c +++ b/board/highbank/highbank.c @@ -57,7 +57,7 @@ void scsi_init(void) u32 reg = readl(HB_SREG_A9_PWRDOM_STAT); if (reg & PWRDOM_STAT_SATA) { - ahci_init(HB_AHCI_BASE); + ahci_init((void __iomem *)HB_AHCI_BASE); scsi_scan(1); } } diff --git a/board/sunxi/ahci.c b/board/sunxi/ahci.c index b7f0dda..6d51b9b 100644 --- a/board/sunxi/ahci.c +++ b/board/sunxi/ahci.c @@ -83,5 +83,5 @@ void scsi_init(void) if (sunxi_ahci_phy_init(SUNXI_SATA_BASE) < 0) return; - ahci_init(SUNXI_SATA_BASE); + ahci_init((void __iomem *)SUNXI_SATA_BASE); } diff --git a/drivers/block/ahci.c b/drivers/block/ahci.c index 88b90e0..6508648 100644 --- a/drivers/block/ahci.c +++ b/drivers/block/ahci.c @@ -137,10 +137,10 @@ static void sunxi_dma_init(volatile u8 *port_mmio) } #endif -int ahci_reset(u32 base) +int ahci_reset(void __iomem *base) { int i = 1000; - u32 host_ctl_reg = base + HOST_CTL; + u32 __iomem *host_ctl_reg = base + HOST_CTL; u32 tmp = readl(host_ctl_reg); /* global controller reset */ if ((tmp & HOST_RESET) == 0) @@ -419,8 +419,9 @@ static int ahci_init_one(pci_dev_t pdev) probe_ent->pio_mask = 0x1f; probe_ent->udma_mask = 0x7f; /*Fixme,assume to support UDMA6 */ - pci_read_config_dword(pdev, PCI_BASE_ADDRESS_5, &probe_ent->mmio_base); - debug("ahci mmio_base=0x%08x\n", probe_ent->mmio_base); + probe_ent->mmio_base = pci_map_bar(pdev, PCI_BASE_ADDRESS_5, + PCI_REGION_MEM); + debug("ahci mmio_base=0x%p\n", probe_ent->mmio_base); /* Take from kernel: * JMicron-specific fixup: @@ -939,7 +940,7 @@ void scsi_low_level_init(int busdevfunc) } #ifdef CONFIG_SCSI_AHCI_PLAT -int ahci_init(u32 base) +int ahci_init(void __iomem *base) { int i, rc = 0; u32 linkmap; diff --git a/drivers/block/dwc_ahsata.c b/drivers/block/dwc_ahsata.c index 01a4148..cf3ef6b 100644 --- a/drivers/block/dwc_ahsata.c +++ b/drivers/block/dwc_ahsata.c @@ -343,7 +343,7 @@ static int ahci_init_one(int pdev) | ATA_FLAG_PIO_DMA | ATA_FLAG_NO_ATAPI; - probe_ent->mmio_base = CONFIG_DWC_AHSATA_BASE_ADDR; + probe_ent->mmio_base = (void __iomem *)CONFIG_DWC_AHSATA_BASE_ADDR; /* initialize adapter */ rc = ahci_host_init(probe_ent); diff --git a/include/ahci.h b/include/ahci.h index e8dee53..6d91712 100644 --- a/include/ahci.h +++ b/include/ahci.h @@ -151,7 +151,7 @@ struct ahci_probe_ent { u32 hard_port_no; u32 host_flags; u32 host_set_flags; - u32 mmio_base; + void __iomem *mmio_base; u32 pio_mask; u32 udma_mask; u32 flags; @@ -160,7 +160,7 @@ struct ahci_probe_ent { u32 link_port_map; /*linkup port map*/ }; -int ahci_init(u32 base); -int ahci_reset(u32 base); +int ahci_init(void __iomem *base); +int ahci_reset(void __iomem *base); #endif