Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/pcmcia/pxa2xx_sharpsl.c b/drivers/pcmcia/pxa2xx_sharpsl.c
new file mode 100644
index 0000000..42efe21
--- /dev/null
+++ b/drivers/pcmcia/pxa2xx_sharpsl.c
@@ -0,0 +1,264 @@
+/*
+ * Sharp SL-C7xx Series PCMCIA routines
+ *
+ * Copyright (c) 2004-2005 Richard Purdie
+ *
+ * Based on Sharp's 2.4 kernel patches and pxa2xx_mainstone.c
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/interrupt.h>
+#include <linux/device.h>
+
+#include <asm/hardware.h>
+#include <asm/irq.h>
+
+#include <asm/hardware/scoop.h>
+#include <asm/arch/corgi.h>
+#include <asm/arch/pxa-regs.h>
+
+#include "soc_common.h"
+
+#define NO_KEEP_VS 0x0001
+
+static unsigned char keep_vs;
+static unsigned char keep_rd;
+
+static struct pcmcia_irqs irqs[] = {
+ { 0, CORGI_IRQ_GPIO_CF_CD, "PCMCIA0 CD"},
+};
+
+static void sharpsl_pcmcia_init_reset(void)
+{
+ reset_scoop(&corgiscoop_device.dev);
+ keep_vs = NO_KEEP_VS;
+ keep_rd = 0;
+}
+
+static int sharpsl_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
+{
+ int ret;
+
+ /*
+ * Setup default state of GPIO outputs
+ * before we enable them as outputs.
+ */
+ GPSR(GPIO48_nPOE) =
+ GPIO_bit(GPIO48_nPOE) |
+ GPIO_bit(GPIO49_nPWE) |
+ GPIO_bit(GPIO50_nPIOR) |
+ GPIO_bit(GPIO51_nPIOW) |
+ GPIO_bit(GPIO52_nPCE_1) |
+ GPIO_bit(GPIO53_nPCE_2);
+
+ pxa_gpio_mode(GPIO48_nPOE_MD);
+ pxa_gpio_mode(GPIO49_nPWE_MD);
+ pxa_gpio_mode(GPIO50_nPIOR_MD);
+ pxa_gpio_mode(GPIO51_nPIOW_MD);
+ pxa_gpio_mode(GPIO52_nPCE_1_MD);
+ pxa_gpio_mode(GPIO53_nPCE_2_MD);
+ pxa_gpio_mode(GPIO54_pSKTSEL_MD);
+ pxa_gpio_mode(GPIO55_nPREG_MD);
+ pxa_gpio_mode(GPIO56_nPWAIT_MD);
+ pxa_gpio_mode(GPIO57_nIOIS16_MD);
+
+ /* Register interrupts */
+ ret = soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs));
+
+ if (ret) {
+ printk(KERN_ERR "Request for Compact Flash IRQ failed\n");
+ return ret;
+ }
+
+ /* Enable interrupt */
+ write_scoop_reg(&corgiscoop_device.dev, SCOOP_IMR, 0x00C0);
+ write_scoop_reg(&corgiscoop_device.dev, SCOOP_MCR, 0x0101);
+ keep_vs = NO_KEEP_VS;
+
+ skt->irq = CORGI_IRQ_GPIO_CF_IRQ;
+
+ return 0;
+}
+
+static void sharpsl_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
+{
+ soc_pcmcia_free_irqs(skt, irqs, ARRAY_SIZE(irqs));
+
+ /* CF_BUS_OFF */
+ sharpsl_pcmcia_init_reset();
+}
+
+
+static void sharpsl_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
+ struct pcmcia_state *state)
+{
+ unsigned short cpr, csr;
+
+ cpr = read_scoop_reg(&corgiscoop_device.dev, SCOOP_CPR);
+
+ write_scoop_reg(&corgiscoop_device.dev, SCOOP_IRM, 0x00FF);
+ write_scoop_reg(&corgiscoop_device.dev, SCOOP_ISR, 0x0000);
+ write_scoop_reg(&corgiscoop_device.dev, SCOOP_IRM, 0x0000);
+ csr = read_scoop_reg(&corgiscoop_device.dev, SCOOP_CSR);
+ if (csr & 0x0004) {
+ /* card eject */
+ write_scoop_reg(&corgiscoop_device.dev, SCOOP_CDR, 0x0000);
+ keep_vs = NO_KEEP_VS;
+ }
+ else if (!(keep_vs & NO_KEEP_VS)) {
+ /* keep vs1,vs2 */
+ write_scoop_reg(&corgiscoop_device.dev, SCOOP_CDR, 0x0000);
+ csr |= keep_vs;
+ }
+ else if (cpr & 0x0003) {
+ /* power on */
+ write_scoop_reg(&corgiscoop_device.dev, SCOOP_CDR, 0x0000);
+ keep_vs = (csr & 0x00C0);
+ }
+ else {
+ /* card detect */
+ write_scoop_reg(&corgiscoop_device.dev, SCOOP_CDR, 0x0002);
+ }
+
+ state->detect = (csr & 0x0004) ? 0 : 1;
+ state->ready = (csr & 0x0002) ? 1 : 0;
+ state->bvd1 = (csr & 0x0010) ? 1 : 0;
+ state->bvd2 = (csr & 0x0020) ? 1 : 0;
+ state->wrprot = (csr & 0x0008) ? 1 : 0;
+ state->vs_3v = (csr & 0x0040) ? 0 : 1;
+ state->vs_Xv = (csr & 0x0080) ? 0 : 1;
+
+ if ((cpr & 0x0080) && ((cpr & 0x8040) != 0x8040)) {
+ printk(KERN_ERR "sharpsl_pcmcia_socket_state(): CPR=%04X, Low voltage!\n", cpr);
+ }
+
+}
+
+
+static int sharpsl_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
+ const socket_state_t *state)
+{
+ unsigned long flags;
+
+ unsigned short cpr, ncpr, ccr, nccr, mcr, nmcr, imr, nimr;
+
+ switch (state->Vcc) {
+ case 0: break;
+ case 33: break;
+ case 50: break;
+ default:
+ printk(KERN_ERR "sharpsl_pcmcia_configure_socket(): bad Vcc %u\n", state->Vcc);
+ return -1;
+ }
+
+ if ((state->Vpp!=state->Vcc) && (state->Vpp!=0)) {
+ printk(KERN_ERR "CF slot cannot support Vpp %u\n", state->Vpp);
+ return -1;
+ }
+
+ local_irq_save(flags);
+
+ nmcr = (mcr = read_scoop_reg(&corgiscoop_device.dev, SCOOP_MCR)) & ~0x0010;
+ ncpr = (cpr = read_scoop_reg(&corgiscoop_device.dev, SCOOP_CPR)) & ~0x0083;
+ nccr = (ccr = read_scoop_reg(&corgiscoop_device.dev, SCOOP_CCR)) & ~0x0080;
+ nimr = (imr = read_scoop_reg(&corgiscoop_device.dev, SCOOP_IMR)) & ~0x003E;
+
+ ncpr |= (state->Vcc == 33) ? 0x0001 :
+ (state->Vcc == 50) ? 0x0002 : 0;
+ nmcr |= (state->flags&SS_IOCARD) ? 0x0010 : 0;
+ ncpr |= (state->flags&SS_OUTPUT_ENA) ? 0x0080 : 0;
+ nccr |= (state->flags&SS_RESET)? 0x0080: 0;
+ nimr |= ((skt->status&SS_DETECT) ? 0x0004 : 0)|
+ ((skt->status&SS_READY) ? 0x0002 : 0)|
+ ((skt->status&SS_BATDEAD)? 0x0010 : 0)|
+ ((skt->status&SS_BATWARN)? 0x0020 : 0)|
+ ((skt->status&SS_STSCHG) ? 0x0010 : 0)|
+ ((skt->status&SS_WRPROT) ? 0x0008 : 0);
+
+ if (!(ncpr & 0x0003)) {
+ keep_rd = 0;
+ } else if (!keep_rd) {
+ if (nccr & 0x0080)
+ keep_rd = 1;
+ else
+ nccr |= 0x0080;
+ }
+
+ if (mcr != nmcr)
+ write_scoop_reg(&corgiscoop_device.dev, SCOOP_MCR, nmcr);
+ if (cpr != ncpr)
+ write_scoop_reg(&corgiscoop_device.dev, SCOOP_CPR, ncpr);
+ if (ccr != nccr)
+ write_scoop_reg(&corgiscoop_device.dev, SCOOP_CCR, nccr);
+ if (imr != nimr)
+ write_scoop_reg(&corgiscoop_device.dev, SCOOP_IMR, nimr);
+
+ local_irq_restore(flags);
+
+ return 0;
+}
+
+static void sharpsl_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
+{
+}
+
+static void sharpsl_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
+{
+}
+
+static struct pcmcia_low_level sharpsl_pcmcia_ops = {
+ .owner = THIS_MODULE,
+ .hw_init = sharpsl_pcmcia_hw_init,
+ .hw_shutdown = sharpsl_pcmcia_hw_shutdown,
+ .socket_state = sharpsl_pcmcia_socket_state,
+ .configure_socket = sharpsl_pcmcia_configure_socket,
+ .socket_init = sharpsl_pcmcia_socket_init,
+ .socket_suspend = sharpsl_pcmcia_socket_suspend,
+ .first = 0,
+ .nr = 1,
+};
+
+static struct platform_device *sharpsl_pcmcia_device;
+
+static int __init sharpsl_pcmcia_init(void)
+{
+ int ret;
+
+ sharpsl_pcmcia_device = kmalloc(sizeof(*sharpsl_pcmcia_device), GFP_KERNEL);
+ if (!sharpsl_pcmcia_device)
+ return -ENOMEM;
+ memset(sharpsl_pcmcia_device, 0, sizeof(*sharpsl_pcmcia_device));
+ sharpsl_pcmcia_device->name = "pxa2xx-pcmcia";
+ sharpsl_pcmcia_device->dev.platform_data = &sharpsl_pcmcia_ops;
+
+ ret = platform_device_register(sharpsl_pcmcia_device);
+ if (ret)
+ kfree(sharpsl_pcmcia_device);
+
+ return ret;
+}
+
+static void __exit sharpsl_pcmcia_exit(void)
+{
+ /*
+ * This call is supposed to free our sharpsl_pcmcia_device.
+ * Unfortunately platform_device don't have a free method, and
+ * we can't assume it's free of any reference at this point so we
+ * can't free it either.
+ */
+ platform_device_unregister(sharpsl_pcmcia_device);
+}
+
+module_init(sharpsl_pcmcia_init);
+module_exit(sharpsl_pcmcia_exit);
+
+MODULE_DESCRIPTION("Sharp SL Series PCMCIA Support");
+MODULE_LICENSE("GPL");