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authorLinus Torvalds <torvalds@linux-foundation.org>2015-09-27 13:45:18 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2015-09-27 13:45:18 +0300
commit685b5f1de6405bf87e38fed7c893a1de0a8d3218 (patch)
tree5d80a835b3709df130dce63692f2f42f13835553 /arch/arm/mach-pxa
parent69ea8b857782ea56d9db01e2f57f9067abd3f013 (diff)
parente46fc90ec2612ef7578c6e3e28ad477a116e24da (diff)
downloadlinux-685b5f1de6405bf87e38fed7c893a1de0a8d3218.tar.xz
Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson: "Our first real batch of fixes this release cycle. Nothing really concerning, and diffstat is a bit inflated due to some DT contents moving around on STi platforms. There's a collection of them here: - A fixup for a build breakage that hits on arm64 allmodconfig in QCOM SCM firmware drivers - MMC fixes for OMAP that had quite a bit of breakage this merge window. - Misc build/warning fixes on PXA and OMAP - A couple of minor fixes for Beagleboard X15 which is now starting to see a few more users in the wild" * tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (31 commits) ARM: sti: dt: adapt DT to fix probe/bind issues in DRM driver ARM: dts: fix omap2+ address translation for pbias firmware: qcom: scm: Add function stubs for ARM64 ARM: dts: am57xx-beagle-x15: use palmas-usb for USB2 ARM: omap2plus_defconfig: enable GPIO_PCA953X ARM: dts: omap5-uevm.dts: fix i2c5 pinctrl offsets ARM: OMAP2+: AM43XX: Enable autoidle for clks in am43xx_init_late ARM: dts: am57xx-beagle-x15: Update Phy supplies ARM: pxa: balloon3: Fix build error ARM: dts: Fixup model name for HP t410 dts ARM: dts: DRA7: fix a typo in ethernet ARM: omap2plus_defconfig: make PCF857x built-in ARM: dts: Use ti,pbias compatible string for pbias ARM: OMAP5: Cleanup options for SoC only build ARM: DRA7: Select missing options for SoC only build ARM: OMAP2+: board-generic: Remove stale of_irq macros ARM: OMAP4+: PM: erratum is used by OMAP5 and DRA7 as well ARM: dts: omap3-igep: Move eth IRQ pinmux to IGEPv2 common dtsi ARM: dts: am57xx-beagle-x15: Add wakeup irq for mcp79410 ARM: dts: am335x-phycore-som: Fix mpu voltage ...
Diffstat (limited to 'arch/arm/mach-pxa')
-rw-r--r--arch/arm/mach-pxa/balloon3.c2
-rw-r--r--arch/arm/mach-pxa/include/mach/addr-map.h7
-rw-r--r--arch/arm/mach-pxa/pxa3xx.c21
3 files changed, 28 insertions, 2 deletions
diff --git a/arch/arm/mach-pxa/balloon3.c b/arch/arm/mach-pxa/balloon3.c
index a3ebb517cca1..a727282bfa99 100644
--- a/arch/arm/mach-pxa/balloon3.c
+++ b/arch/arm/mach-pxa/balloon3.c
@@ -502,7 +502,7 @@ static void balloon3_irq_handler(struct irq_desc *desc)
balloon3_irq_enabled;
do {
struct irq_data *d = irq_desc_get_irq_data(desc);
- struct irq_chip *chip = irq_data_get_chip(d);
+ struct irq_chip *chip = irq_desc_get_chip(desc);
unsigned int irq;
/* clear useless edge notification */
diff --git a/arch/arm/mach-pxa/include/mach/addr-map.h b/arch/arm/mach-pxa/include/mach/addr-map.h
index d28fe291233a..07b93fd24474 100644
--- a/arch/arm/mach-pxa/include/mach/addr-map.h
+++ b/arch/arm/mach-pxa/include/mach/addr-map.h
@@ -44,6 +44,13 @@
*/
/*
+ * DFI Bus for NAND, PXA3xx only
+ */
+#define NAND_PHYS 0x43100000
+#define NAND_VIRT IOMEM(0xf6300000)
+#define NAND_SIZE 0x00100000
+
+/*
* Internal Memory Controller (PXA27x and later)
*/
#define IMEMC_PHYS 0x58000000
diff --git a/arch/arm/mach-pxa/pxa3xx.c b/arch/arm/mach-pxa/pxa3xx.c
index ce0f8d6242e2..06005d3f2ba3 100644
--- a/arch/arm/mach-pxa/pxa3xx.c
+++ b/arch/arm/mach-pxa/pxa3xx.c
@@ -47,6 +47,13 @@ extern void __init pxa_dt_irq_init(int (*fn)(struct irq_data *, unsigned int));
#define ISRAM_START 0x5c000000
#define ISRAM_SIZE SZ_256K
+/*
+ * NAND NFC: DFI bus arbitration subset
+ */
+#define NDCR (*(volatile u32 __iomem*)(NAND_VIRT + 0))
+#define NDCR_ND_ARB_EN (1 << 12)
+#define NDCR_ND_ARB_CNTL (1 << 19)
+
static void __iomem *sram;
static unsigned long wakeup_src;
@@ -362,7 +369,12 @@ static struct map_desc pxa3xx_io_desc[] __initdata = {
.pfn = __phys_to_pfn(PXA3XX_SMEMC_BASE),
.length = SMEMC_SIZE,
.type = MT_DEVICE
- }
+ }, {
+ .virtual = (unsigned long)NAND_VIRT,
+ .pfn = __phys_to_pfn(NAND_PHYS),
+ .length = NAND_SIZE,
+ .type = MT_DEVICE
+ },
};
void __init pxa3xx_map_io(void)
@@ -419,6 +431,13 @@ static int __init pxa3xx_init(void)
*/
ASCR &= ~(ASCR_RDH | ASCR_D1S | ASCR_D2S | ASCR_D3S);
+ /*
+ * Disable DFI bus arbitration, to prevent a system bus lock if
+ * somebody disables the NAND clock (unused clock) while this
+ * bit remains set.
+ */
+ NDCR = (NDCR & ~NDCR_ND_ARB_EN) | NDCR_ND_ARB_CNTL;
+
if ((ret = pxa_init_dma(IRQ_DMA, 32)))
return ret;