summaryrefslogtreecommitdiff
path: root/arch/arm/mach-rpc/ecard.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2019-07-19 17:05:08 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2019-07-19 17:05:08 -0700
commit24e44913aa746098349370a0f279733c0cadcba7 (patch)
tree51edd7b13d889653b0400d67dd3e7e91a11db75b /arch/arm/mach-rpc/ecard.c
parent31cc088a4f5d83481c6f5041bd6eb06115b974af (diff)
parent7e8a0f10899075ac2665c78c4e49dbaf32bf3346 (diff)
Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC platform updates from Olof Johansson: "SoC platform changes. Main theme this merge window: - The Netx platform (Netx 100/500) platform is removed by Linus Walleij-- the SoC doesn't have active maintainers with hardware, and in discussions with the vendor the agreement was that it's OK to remove. - Russell King has a series of patches that cleans up and refactors SA1101 and RiscPC support" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (47 commits) ARM: stm32: use "depends on" instead of "if" after prompt ARM: sa1100: convert to common clock framework ARM: exynos: Cleanup cppcheck shifting warning ARM: pxa/lubbock: remove lubbock_set_misc_wr() from global view ARM: exynos: Only build MCPM support if used arm: add missing include platform-data/atmel.h ARM: davinci: Use GPIO lookup table for DA850 LEDs ARM: OMAP2: drop explicit assembler architecture ARM: use arch_extension directive instead of arch argument ARM: imx: Switch imx7d to imx-cpufreq-dt for speed-grading ARM: bcm: Enable PINCTRL for ARCH_BRCMSTB ARM: bcm: Enable ARCH_HAS_RESET_CONTROLLER for ARCH_BRCMSTB ARM: riscpc: enable chained scatterlist support ARM: riscpc: reduce IRQ handling code ARM: riscpc: move RiscPC assembly files from arch/arm/lib to mach-rpc ARM: riscpc: parse video information from tagged list ARM: riscpc: add ecard quirk for Atomwide 3port serial card MAINTAINERS: mvebu: Add git entry soc: ti: pm33xx: Add a print while entering RTC only mode with DDR in self-refresh ARM: OMAP2+: Make some variables static ...
Diffstat (limited to 'arch/arm/mach-rpc/ecard.c')
-rw-r--r--arch/arm/mach-rpc/ecard.c32
1 files changed, 26 insertions, 6 deletions
diff --git a/arch/arm/mach-rpc/ecard.c b/arch/arm/mach-rpc/ecard.c
index cf0593bc42d2..75cfad2cb143 100644
--- a/arch/arm/mach-rpc/ecard.c
+++ b/arch/arm/mach-rpc/ecard.c
@@ -67,17 +67,21 @@ struct expcard_blacklist {
unsigned short manufacturer;
unsigned short product;
const char *type;
+ void (*init)(ecard_t *ec);
};
static ecard_t *cards;
static ecard_t *slot_to_expcard[MAX_ECARDS];
static unsigned int ectcr;
+static void atomwide_3p_quirk(ecard_t *ec);
+
/* List of descriptions of cards which don't have an extended
* identification, or chunk directories containing a description.
*/
static struct expcard_blacklist __initdata blacklist[] = {
- { MANU_ACORN, PROD_ACORN_ETHER1, "Acorn Ether1" }
+ { MANU_ACORN, PROD_ACORN_ETHER1, "Acorn Ether1" },
+ { MANU_ATOMWIDE, PROD_ATOMWIDE_3PSERIAL, NULL, atomwide_3p_quirk },
};
asmlinkage extern int
@@ -493,18 +497,21 @@ static void ecard_dump_irq_state(void)
printk("Expansion card IRQ state:\n");
for (ec = cards; ec; ec = ec->next) {
+ const char *claimed;
+
if (ec->slot_no == 8)
continue;
- printk(" %d: %sclaimed, ",
- ec->slot_no, ec->claimed ? "" : "not ");
+ claimed = ec->claimed ? "" : "not ";
if (ec->ops && ec->ops->irqpending &&
ec->ops != &ecard_default_ops)
- printk("irq %spending\n",
+ printk(" %d: %sclaimed irq %spending\n",
+ ec->slot_no, claimed,
ec->ops->irqpending(ec) ? "" : "not ");
else
- printk("irqaddr %p, mask = %02X, status = %02X\n",
+ printk(" %d: %sclaimed irqaddr %p, mask = %02X, status = %02X\n",
+ ec->slot_no, claimed,
ec->irqaddr, ec->irqmask, readb(ec->irqaddr));
}
}
@@ -865,6 +872,16 @@ void __iomem *ecardm_iomap(struct expansion_card *ec, unsigned int res,
}
EXPORT_SYMBOL(ecardm_iomap);
+static void atomwide_3p_quirk(ecard_t *ec)
+{
+ void __iomem *addr = __ecard_address(ec, ECARD_IOC, ECARD_SYNC);
+ unsigned int i;
+
+ /* Disable interrupts on each port */
+ for (i = 0x2000; i <= 0x2800; i += 0x0400)
+ writeb(0, addr + i + 4);
+}
+
/*
* Probe for an expansion card.
*
@@ -921,7 +938,10 @@ static int __init ecard_probe(int slot, unsigned irq, card_type_t type)
for (i = 0; i < ARRAY_SIZE(blacklist); i++)
if (blacklist[i].manufacturer == ec->cid.manufacturer &&
blacklist[i].product == ec->cid.product) {
- ec->card_desc = blacklist[i].type;
+ if (blacklist[i].type)
+ ec->card_desc = blacklist[i].type;
+ if (blacklist[i].init)
+ blacklist[i].init(ec);
break;
}