From: Arnd Bergmann arnd@arndb.de
There is only one board that uses the omap_cf driver, so moving the chipselect configuration there does not lead to code duplication but avoids the use of mach/tc.h in drivers.
Signed-off-by: Arnd Bergmann arnd@arndb.de --- arch/arm/mach-omap1/board-osk.c | 38 ++++++++++++++++++++++++++++----- drivers/pcmcia/Kconfig | 3 ++- drivers/pcmcia/omap_cf.c | 38 ++++++--------------------------- 3 files changed, 42 insertions(+), 37 deletions(-)
diff --git a/arch/arm/mach-omap1/board-osk.c b/arch/arm/mach-omap1/board-osk.c index b627a4351cf0..5dbc8f109aa7 100644 --- a/arch/arm/mach-omap1/board-osk.c +++ b/arch/arm/mach-omap1/board-osk.c @@ -153,14 +153,14 @@ static struct resource osk5912_cf_resources[] = { [0] = { .flags = IORESOURCE_IRQ, }, + [1] = { + .flags = IORESOURCE_MEM, + }, };
static struct platform_device osk5912_cf_device = { .name = "omap_cf", .id = -1, - .dev = { - .platform_data = (void *) 2 /* CS2 */, - }, .num_resources = ARRAY_SIZE(osk5912_cf_resources), .resource = osk5912_cf_resources, }; @@ -275,13 +275,41 @@ static void __init osk_init_smc91x(void) omap_writel(l, EMIFS_CCS(1)); }
-static void __init osk_init_cf(void) +static void __init osk_init_cf(int seg) { + struct resource *res = &osk5912_cf_resources[1]; + omap_cfg_reg(M7_1610_GPIO62); if ((gpio_request(62, "cf_irq")) < 0) { printk("Error requesting gpio 62 for CF irq\n"); return; } + + switch (seg) { + /* NOTE: CS0 could be configured too ... */ + case 1: + res->start = OMAP_CS1_PHYS; + break; + case 2: + res->start = OMAP_CS2_PHYS; + break; + case 3: + res->start = omap_cs3_phys(); + break; + } + + res->end = res->start + SZ_8K - 1; + osk5912_cf_device.dev.platform_data = (void *)(uintptr_t)seg; + + /* NOTE: better EMIFS setup might support more cards; but the + * TRM only shows how to affect regular flash signals, not their + * CF/PCMCIA variants... + */ + pr_debug("%s: cs%d, previous ccs %08x acs %08x\n", __func__, + seg, omap_readl(EMIFS_CCS(seg)), omap_readl(EMIFS_ACS(seg))); + omap_writel(0x0004a1b3, EMIFS_CCS(seg)); /* synch mode 4 etc */ + omap_writel(0x00000000, EMIFS_ACS(seg)); /* OE hold/setup */ + /* the CF I/O IRQ is really active-low */ irq_set_irq_type(gpio_to_irq(62), IRQ_TYPE_EDGE_FALLING); } @@ -580,7 +608,7 @@ static void __init osk_init(void) u32 l;
osk_init_smc91x(); - osk_init_cf(); + osk_init_cf(2); /* CS2 */
/* Workaround for wrong CS3 (NOR flash) timing * There are some U-Boot versions out there which configure diff --git a/drivers/pcmcia/Kconfig b/drivers/pcmcia/Kconfig index 2ce261cfff8e..ec977f031bc2 100644 --- a/drivers/pcmcia/Kconfig +++ b/drivers/pcmcia/Kconfig @@ -246,7 +246,8 @@ config PCMCIA_VRC4171
config OMAP_CF tristate "OMAP CompactFlash Controller" - depends on PCMCIA && ARCH_OMAP16XX + depends on PCMCIA + depends on ARCH_OMAP16XX || (ARM && COMPILE_TEST) help Say Y here to support the CompactFlash controller on OMAP. Note that this doesn't support "True IDE" mode. diff --git a/drivers/pcmcia/omap_cf.c b/drivers/pcmcia/omap_cf.c index f0b2c2d03469..093022ce7d91 100644 --- a/drivers/pcmcia/omap_cf.c +++ b/drivers/pcmcia/omap_cf.c @@ -16,13 +16,12 @@
#include <pcmcia/ss.h>
-#include <mach/hardware.h> #include <asm/io.h> #include <linux/sizes.h>
-#include <mach/mux.h> -#include <mach/tc.h> - +#include <linux/soc/ti/omap1-io.h> +#include <linux/soc/ti/omap1-soc.h> +#include <linux/soc/ti/omap1-mux.h>
/* NOTE: don't expect this to support many I/O cards. The 16xx chips have * hard-wired timings to support Compact Flash memory cards; they won't work @@ -205,6 +204,7 @@ static int __init omap_cf_probe(struct platform_device *pdev) struct omap_cf_socket *cf; int irq; int status; + struct resource *res;
seg = (int) pdev->dev.platform_data; if (seg == 0 || seg > 3) @@ -215,6 +215,8 @@ static int __init omap_cf_probe(struct platform_device *pdev) if (irq < 0) return -EINVAL;
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + cf = kzalloc(sizeof *cf, GFP_KERNEL); if (!cf) return -ENOMEM; @@ -230,24 +232,7 @@ static int __init omap_cf_probe(struct platform_device *pdev) goto fail0; cf->irq = irq; cf->socket.pci_irq = irq; - - switch (seg) { - /* NOTE: CS0 could be configured too ... */ - case 1: - cf->phys_cf = OMAP_CS1_PHYS; - break; - case 2: - cf->phys_cf = OMAP_CS2_PHYS; - break; - case 3: - cf->phys_cf = omap_cs3_phys(); - break; - default: - goto fail1; - } - cf->iomem.start = cf->phys_cf; - cf->iomem.end = cf->iomem.end + SZ_8K - 1; - cf->iomem.flags = IORESOURCE_MEM; + cf->phys_cf = res->start;
/* pcmcia layer only remaps "real" memory */ cf->socket.io_offset = (unsigned long) @@ -273,15 +258,6 @@ static int __init omap_cf_probe(struct platform_device *pdev)
pr_info("%s: cs%d on irq %d\n", driver_name, seg, irq);
- /* NOTE: better EMIFS setup might support more cards; but the - * TRM only shows how to affect regular flash signals, not their - * CF/PCMCIA variants... - */ - pr_debug("%s: cs%d, previous ccs %08x acs %08x\n", driver_name, - seg, omap_readl(EMIFS_CCS(seg)), omap_readl(EMIFS_ACS(seg))); - omap_writel(0x0004a1b3, EMIFS_CCS(seg)); /* synch mode 4 etc */ - omap_writel(0x00000000, EMIFS_ACS(seg)); /* OE hold/setup */ - /* CF uses armxor_ck, which is "always" available */
pr_debug("%s: sts %04x cfg %04x control %04x %s\n", driver_name,