mirror of https://github.com/torvalds/linux.git
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: Tony Lindgren <tony@atomide.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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58d37dc1df
commit
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@ -153,14 +153,14 @@ static struct resource osk5912_cf_resources[] = {
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[0] = {
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[0] = {
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.flags = IORESOURCE_IRQ,
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.flags = IORESOURCE_IRQ,
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},
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},
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[1] = {
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.flags = IORESOURCE_MEM,
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},
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};
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};
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static struct platform_device osk5912_cf_device = {
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static struct platform_device osk5912_cf_device = {
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.name = "omap_cf",
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.name = "omap_cf",
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.id = -1,
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.id = -1,
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.dev = {
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.platform_data = (void *) 2 /* CS2 */,
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},
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.num_resources = ARRAY_SIZE(osk5912_cf_resources),
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.num_resources = ARRAY_SIZE(osk5912_cf_resources),
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.resource = osk5912_cf_resources,
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.resource = osk5912_cf_resources,
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};
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};
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@ -275,13 +275,41 @@ static void __init osk_init_smc91x(void)
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omap_writel(l, EMIFS_CCS(1));
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omap_writel(l, EMIFS_CCS(1));
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}
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}
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static void __init osk_init_cf(void)
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static void __init osk_init_cf(int seg)
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{
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{
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struct resource *res = &osk5912_cf_resources[1];
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omap_cfg_reg(M7_1610_GPIO62);
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omap_cfg_reg(M7_1610_GPIO62);
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if ((gpio_request(62, "cf_irq")) < 0) {
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if ((gpio_request(62, "cf_irq")) < 0) {
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printk("Error requesting gpio 62 for CF irq\n");
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printk("Error requesting gpio 62 for CF irq\n");
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return;
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return;
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}
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}
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switch (seg) {
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/* NOTE: CS0 could be configured too ... */
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case 1:
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res->start = OMAP_CS1_PHYS;
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break;
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case 2:
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res->start = OMAP_CS2_PHYS;
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break;
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case 3:
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res->start = omap_cs3_phys();
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break;
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}
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res->end = res->start + SZ_8K - 1;
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osk5912_cf_device.dev.platform_data = (void *)(uintptr_t)seg;
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/* NOTE: better EMIFS setup might support more cards; but the
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* TRM only shows how to affect regular flash signals, not their
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* CF/PCMCIA variants...
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*/
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pr_debug("%s: cs%d, previous ccs %08x acs %08x\n", __func__,
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seg, omap_readl(EMIFS_CCS(seg)), omap_readl(EMIFS_ACS(seg)));
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omap_writel(0x0004a1b3, EMIFS_CCS(seg)); /* synch mode 4 etc */
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omap_writel(0x00000000, EMIFS_ACS(seg)); /* OE hold/setup */
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/* the CF I/O IRQ is really active-low */
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/* the CF I/O IRQ is really active-low */
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irq_set_irq_type(gpio_to_irq(62), IRQ_TYPE_EDGE_FALLING);
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irq_set_irq_type(gpio_to_irq(62), IRQ_TYPE_EDGE_FALLING);
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}
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}
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@ -580,7 +608,7 @@ static void __init osk_init(void)
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u32 l;
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u32 l;
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osk_init_smc91x();
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osk_init_smc91x();
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osk_init_cf();
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osk_init_cf(2); /* CS2 */
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/* Workaround for wrong CS3 (NOR flash) timing
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/* Workaround for wrong CS3 (NOR flash) timing
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* There are some U-Boot versions out there which configure
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* There are some U-Boot versions out there which configure
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@ -246,7 +246,8 @@ config PCMCIA_VRC4171
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config OMAP_CF
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config OMAP_CF
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tristate "OMAP CompactFlash Controller"
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tristate "OMAP CompactFlash Controller"
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depends on PCMCIA && ARCH_OMAP16XX
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depends on PCMCIA
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depends on ARCH_OMAP16XX || (ARM && COMPILE_TEST)
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help
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help
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Say Y here to support the CompactFlash controller on OMAP.
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Say Y here to support the CompactFlash controller on OMAP.
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Note that this doesn't support "True IDE" mode.
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Note that this doesn't support "True IDE" mode.
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@ -16,13 +16,12 @@
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#include <pcmcia/ss.h>
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#include <pcmcia/ss.h>
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#include <mach/hardware.h>
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#include <asm/io.h>
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#include <asm/io.h>
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#include <linux/sizes.h>
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#include <linux/sizes.h>
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#include <mach/mux.h>
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#include <linux/soc/ti/omap1-io.h>
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#include <mach/tc.h>
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#include <linux/soc/ti/omap1-soc.h>
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#include <linux/soc/ti/omap1-mux.h>
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/* NOTE: don't expect this to support many I/O cards. The 16xx chips have
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/* NOTE: don't expect this to support many I/O cards. The 16xx chips have
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* hard-wired timings to support Compact Flash memory cards; they won't work
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* hard-wired timings to support Compact Flash memory cards; they won't work
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@ -205,6 +204,7 @@ static int __init omap_cf_probe(struct platform_device *pdev)
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struct omap_cf_socket *cf;
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struct omap_cf_socket *cf;
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int irq;
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int irq;
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int status;
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int status;
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struct resource *res;
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seg = (int) pdev->dev.platform_data;
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seg = (int) pdev->dev.platform_data;
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if (seg == 0 || seg > 3)
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if (seg == 0 || seg > 3)
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@ -215,6 +215,8 @@ static int __init omap_cf_probe(struct platform_device *pdev)
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if (irq < 0)
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if (irq < 0)
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return -EINVAL;
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return -EINVAL;
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res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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cf = kzalloc(sizeof *cf, GFP_KERNEL);
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cf = kzalloc(sizeof *cf, GFP_KERNEL);
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if (!cf)
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if (!cf)
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return -ENOMEM;
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return -ENOMEM;
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@ -230,24 +232,7 @@ static int __init omap_cf_probe(struct platform_device *pdev)
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goto fail0;
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goto fail0;
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cf->irq = irq;
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cf->irq = irq;
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cf->socket.pci_irq = irq;
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cf->socket.pci_irq = irq;
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cf->phys_cf = res->start;
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switch (seg) {
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/* NOTE: CS0 could be configured too ... */
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case 1:
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cf->phys_cf = OMAP_CS1_PHYS;
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break;
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case 2:
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cf->phys_cf = OMAP_CS2_PHYS;
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break;
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case 3:
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cf->phys_cf = omap_cs3_phys();
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break;
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default:
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goto fail1;
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}
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cf->iomem.start = cf->phys_cf;
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cf->iomem.end = cf->iomem.end + SZ_8K - 1;
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cf->iomem.flags = IORESOURCE_MEM;
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/* pcmcia layer only remaps "real" memory */
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/* pcmcia layer only remaps "real" memory */
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cf->socket.io_offset = (unsigned long)
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cf->socket.io_offset = (unsigned long)
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@ -273,15 +258,6 @@ static int __init omap_cf_probe(struct platform_device *pdev)
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pr_info("%s: cs%d on irq %d\n", driver_name, seg, irq);
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pr_info("%s: cs%d on irq %d\n", driver_name, seg, irq);
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/* NOTE: better EMIFS setup might support more cards; but the
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* TRM only shows how to affect regular flash signals, not their
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* CF/PCMCIA variants...
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*/
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pr_debug("%s: cs%d, previous ccs %08x acs %08x\n", driver_name,
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seg, omap_readl(EMIFS_CCS(seg)), omap_readl(EMIFS_ACS(seg)));
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omap_writel(0x0004a1b3, EMIFS_CCS(seg)); /* synch mode 4 etc */
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omap_writel(0x00000000, EMIFS_ACS(seg)); /* OE hold/setup */
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/* CF uses armxor_ck, which is "always" available */
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/* CF uses armxor_ck, which is "always" available */
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pr_debug("%s: sts %04x cfg %04x control %04x %s\n", driver_name,
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pr_debug("%s: sts %04x cfg %04x control %04x %s\n", driver_name,
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