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-rw-r--r--target/linux/brcm63xx/files/arch/mips/bcm63xx/dev-pcmcia.c135
1 files changed, 135 insertions, 0 deletions
diff --git a/target/linux/brcm63xx/files/arch/mips/bcm63xx/dev-pcmcia.c b/target/linux/brcm63xx/files/arch/mips/bcm63xx/dev-pcmcia.c
new file mode 100644
index 0000000000..40ec4bcd5d
--- /dev/null
+++ b/target/linux/brcm63xx/files/arch/mips/bcm63xx/dev-pcmcia.c
@@ -0,0 +1,135 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <asm/bootinfo.h>
+#include <linux/platform_device.h>
+#include <bcm63xx_cs.h>
+#include <bcm63xx_cpu.h>
+#include <bcm63xx_dev_pcmcia.h>
+#include <bcm63xx_io.h>
+#include <bcm63xx_regs.h>
+
+static struct resource pcmcia_resources[] = {
+ /* pcmcia registers */
+ {
+ .start = -1, /* filled at runtime */
+ .end = -1, /* filled at runtime */
+ .flags = IORESOURCE_MEM,
+ },
+
+ /* pcmcia memory zone resources */
+ {
+ .start = BCM_PCMCIA_COMMON_BASE_PA,
+ .end = BCM_PCMCIA_COMMON_END_PA,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = BCM_PCMCIA_ATTR_BASE_PA,
+ .end = BCM_PCMCIA_ATTR_END_PA,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = BCM_PCMCIA_IO_BASE_PA,
+ .end = BCM_PCMCIA_IO_END_PA,
+ .flags = IORESOURCE_MEM,
+ },
+
+ /* PCMCIA irq */
+ {
+ .start = -1, /* filled at runtime */
+ .flags = IORESOURCE_IRQ,
+ },
+
+ /* declare PCMCIA IO resource also */
+ {
+ .start = BCM_PCMCIA_IO_BASE_PA,
+ .end = BCM_PCMCIA_IO_END_PA,
+ .flags = IORESOURCE_IO,
+ },
+};
+
+static struct bcm63xx_pcmcia_platform_data pd;
+
+static struct platform_device bcm63xx_pcmcia_device = {
+ .name = "bcm63xx_pcmcia",
+ .id = 0,
+ .num_resources = ARRAY_SIZE(pcmcia_resources),
+ .resource = pcmcia_resources,
+ .dev = {
+ .platform_data = &pd,
+ },
+};
+
+static int __init config_pcmcia_cs(unsigned int cs,
+ u32 base, unsigned int size)
+{
+ int ret;
+
+ ret = bcm63xx_set_cs_status(cs, 0);
+ if (!ret)
+ ret = bcm63xx_set_cs_base(cs, base, size);
+ if (!ret)
+ ret = bcm63xx_set_cs_status(cs, 1);
+ return ret;
+}
+
+static const __initdata unsigned int pcmcia_cs[3][3] = {
+ /* cs, base address, size */
+ { MPI_CS_PCMCIA_COMMON, BCM_PCMCIA_COMMON_BASE_PA,
+ BCM_PCMCIA_COMMON_SIZE },
+
+ { MPI_CS_PCMCIA_ATTR, BCM_PCMCIA_ATTR_BASE_PA,
+ BCM_PCMCIA_ATTR_SIZE },
+
+ { MPI_CS_PCMCIA_IO, BCM_PCMCIA_IO_BASE_PA,
+ BCM_PCMCIA_IO_SIZE },
+};
+
+int __init bcm63xx_pcmcia_register(void)
+{
+ int ret, i;
+
+ if (!BCMCPU_IS_6348() && !BCMCPU_IS_6358())
+ return 0;
+
+ /* use correct pcmcia ready gpio depending on processor */
+ switch (bcm63xx_get_cpu_id()) {
+ case BCM6348_CPU_ID:
+ pd.ready_gpio = 22;
+ break;
+
+ case BCM6358_CPU_ID:
+ pd.ready_gpio = 22;
+ break;
+
+ default:
+ return -ENODEV;
+ }
+
+ pcmcia_resources[0].start = bcm63xx_regset_address(RSET_PCMCIA);
+ pcmcia_resources[0].end = pcmcia_resources[0].start;
+ pcmcia_resources[0].end += RSET_PCMCIA_SIZE - 1;
+ pcmcia_resources[4].start = bcm63xx_get_irq_number(IRQ_PCMCIA);
+
+ /* configure pcmcia chip selects */
+ for (i = 0; i < 3; i++) {
+ ret = config_pcmcia_cs(pcmcia_cs[i][0],
+ pcmcia_cs[i][1],
+ pcmcia_cs[i][2]);
+ if (ret)
+ goto out_err;
+ }
+
+ return platform_device_register(&bcm63xx_pcmcia_device);
+
+out_err:
+ printk(KERN_ERR "unable to set pcmcia chip select");
+ return ret;
+}