Commit d87d44f7 authored by Arnd Bergmann's avatar Arnd Bergmann

ARM: omap1: move CF chipselect setup to board file

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.
Acked-by: default avatarTony Lindgren <tony@atomide.com>
Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
parent 58d37dc1
...@@ -153,14 +153,14 @@ static struct resource osk5912_cf_resources[] = { ...@@ -153,14 +153,14 @@ static struct resource osk5912_cf_resources[] = {
[0] = { [0] = {
.flags = IORESOURCE_IRQ, .flags = IORESOURCE_IRQ,
}, },
[1] = {
.flags = IORESOURCE_MEM,
},
}; };
static struct platform_device osk5912_cf_device = { static struct platform_device osk5912_cf_device = {
.name = "omap_cf", .name = "omap_cf",
.id = -1, .id = -1,
.dev = {
.platform_data = (void *) 2 /* CS2 */,
},
.num_resources = ARRAY_SIZE(osk5912_cf_resources), .num_resources = ARRAY_SIZE(osk5912_cf_resources),
.resource = osk5912_cf_resources, .resource = osk5912_cf_resources,
}; };
...@@ -275,13 +275,41 @@ static void __init osk_init_smc91x(void) ...@@ -275,13 +275,41 @@ static void __init osk_init_smc91x(void)
omap_writel(l, EMIFS_CCS(1)); 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); omap_cfg_reg(M7_1610_GPIO62);
if ((gpio_request(62, "cf_irq")) < 0) { if ((gpio_request(62, "cf_irq")) < 0) {
printk("Error requesting gpio 62 for CF irq\n"); printk("Error requesting gpio 62 for CF irq\n");
return; 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 */ /* the CF I/O IRQ is really active-low */
irq_set_irq_type(gpio_to_irq(62), IRQ_TYPE_EDGE_FALLING); irq_set_irq_type(gpio_to_irq(62), IRQ_TYPE_EDGE_FALLING);
} }
...@@ -580,7 +608,7 @@ static void __init osk_init(void) ...@@ -580,7 +608,7 @@ static void __init osk_init(void)
u32 l; u32 l;
osk_init_smc91x(); osk_init_smc91x();
osk_init_cf(); osk_init_cf(2); /* CS2 */
/* Workaround for wrong CS3 (NOR flash) timing /* Workaround for wrong CS3 (NOR flash) timing
* There are some U-Boot versions out there which configure * There are some U-Boot versions out there which configure
......
...@@ -246,7 +246,8 @@ config PCMCIA_VRC4171 ...@@ -246,7 +246,8 @@ config PCMCIA_VRC4171
config OMAP_CF config OMAP_CF
tristate "OMAP CompactFlash Controller" tristate "OMAP CompactFlash Controller"
depends on PCMCIA && ARCH_OMAP16XX depends on PCMCIA
depends on ARCH_OMAP16XX || (ARM && COMPILE_TEST)
help help
Say Y here to support the CompactFlash controller on OMAP. Say Y here to support the CompactFlash controller on OMAP.
Note that this doesn't support "True IDE" mode. Note that this doesn't support "True IDE" mode.
......
...@@ -16,13 +16,12 @@ ...@@ -16,13 +16,12 @@
#include <pcmcia/ss.h> #include <pcmcia/ss.h>
#include <mach/hardware.h>
#include <asm/io.h> #include <asm/io.h>
#include <linux/sizes.h> #include <linux/sizes.h>
#include <mach/mux.h> #include <linux/soc/ti/omap1-io.h>
#include <mach/tc.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 /* 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 * 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) ...@@ -205,6 +204,7 @@ static int __init omap_cf_probe(struct platform_device *pdev)
struct omap_cf_socket *cf; struct omap_cf_socket *cf;
int irq; int irq;
int status; int status;
struct resource *res;
seg = (int) pdev->dev.platform_data; seg = (int) pdev->dev.platform_data;
if (seg == 0 || seg > 3) if (seg == 0 || seg > 3)
...@@ -215,6 +215,8 @@ static int __init omap_cf_probe(struct platform_device *pdev) ...@@ -215,6 +215,8 @@ static int __init omap_cf_probe(struct platform_device *pdev)
if (irq < 0) if (irq < 0)
return -EINVAL; return -EINVAL;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
cf = kzalloc(sizeof *cf, GFP_KERNEL); cf = kzalloc(sizeof *cf, GFP_KERNEL);
if (!cf) if (!cf)
return -ENOMEM; return -ENOMEM;
...@@ -230,24 +232,7 @@ static int __init omap_cf_probe(struct platform_device *pdev) ...@@ -230,24 +232,7 @@ static int __init omap_cf_probe(struct platform_device *pdev)
goto fail0; goto fail0;
cf->irq = irq; cf->irq = irq;
cf->socket.pci_irq = irq; cf->socket.pci_irq = irq;
cf->phys_cf = res->start;
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;
/* pcmcia layer only remaps "real" memory */ /* pcmcia layer only remaps "real" memory */
cf->socket.io_offset = (unsigned long) cf->socket.io_offset = (unsigned long)
...@@ -273,15 +258,6 @@ static int __init omap_cf_probe(struct platform_device *pdev) ...@@ -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); 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 */ /* CF uses armxor_ck, which is "always" available */
pr_debug("%s: sts %04x cfg %04x control %04x %s\n", driver_name, pr_debug("%s: sts %04x cfg %04x control %04x %s\n", driver_name,
......
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