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authorRichard Purdie <rpurdie@rpsys.net>2005-11-08 19:15:43 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2005-11-08 19:15:43 +0000
commita63ae4427c6af66d6eda26e5da8fed53f8fbede3 (patch)
treecb30bd5993c07bae7f66564713292d8b224d591f /arch/arm/mach-pxa/spitz.c
parent1d23b65de54c35844e82bdb08bc85d8142e310ea (diff)
downloadop-kernel-dev-a63ae4427c6af66d6eda26e5da8fed53f8fbede3.zip
op-kernel-dev-a63ae4427c6af66d6eda26e5da8fed53f8fbede3.tar.gz
[ARM] 3093/1: SharpSL PCMCIA Updates for Cxx00 models
Patch from Richard Purdie The Sharp SL-Cxx00 models have a combined power control for the SD and CF slot 0. This patch adds hooks to the scoop driver to allow machines to provide a custom control function for this and such a function is added for spitz/akita/borzoi. It also moves the gpio init code into the machine files as this is machine dependent and differs between some models. A couple of warnings when compiling for collie are also fixed. Signed-off-by: Richard Purdie Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-pxa/spitz.c')
-rw-r--r--arch/arm/mach-pxa/spitz.c95
1 files changed, 76 insertions, 19 deletions
diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c
index 6c6878c..4e9a699 100644
--- a/arch/arm/mach-pxa/spitz.c
+++ b/arch/arm/mach-pxa/spitz.c
@@ -104,6 +104,66 @@ struct platform_device spitzscoop2_device = {
.resource = spitz_scoop2_resources,
};
+#define SPITZ_PWR_SD 0x01
+#define SPITZ_PWR_CF 0x02
+
+/* Power control is shared with between one of the CF slots and SD */
+static void spitz_card_pwr_ctrl(int device, unsigned short new_cpr)
+{
+ unsigned short cpr = read_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR);
+
+ if (new_cpr & 0x0007) {
+ set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_CF_POWER);
+ if (!(cpr & 0x0002) && !(cpr & 0x0004))
+ mdelay(5);
+ if (device == SPITZ_PWR_CF)
+ cpr |= 0x0002;
+ if (device == SPITZ_PWR_SD)
+ cpr |= 0x0004;
+ write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, cpr | new_cpr);
+ } else {
+ if (device == SPITZ_PWR_CF)
+ cpr &= ~0x0002;
+ if (device == SPITZ_PWR_SD)
+ cpr &= ~0x0004;
+ write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, cpr | new_cpr);
+ if (!(cpr & 0x0002) && !(cpr & 0x0004)) {
+ mdelay(1);
+ reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_CF_POWER);
+ }
+ }
+}
+
+static void spitz_pcmcia_init(void)
+{
+ /* 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(GPIO54_nPCE_2);
+ GPSR(GPIO85_nPCE_1) = GPIO_bit(GPIO85_nPCE_1);
+
+ 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(GPIO55_nPREG_MD);
+ pxa_gpio_mode(GPIO56_nPWAIT_MD);
+ pxa_gpio_mode(GPIO57_nIOIS16_MD);
+ pxa_gpio_mode(GPIO85_nPCE_1_MD);
+ pxa_gpio_mode(GPIO54_nPCE_2_MD);
+ pxa_gpio_mode(GPIO104_pSKTSEL_MD);
+}
+
+static void spitz_pcmcia_pwr(struct device *scoop, unsigned short cpr, int nr)
+{
+ /* Only need to override behaviour for slot 0 */
+ if (nr == 0)
+ spitz_card_pwr_ctrl(SPITZ_PWR_CF, cpr);
+ else
+ write_scoop_reg(scoop, SCOOP_CPR, cpr);
+}
+
static struct scoop_pcmcia_dev spitz_pcmcia_scoop[] = {
{
.dev = &spitzscoop_device.dev,
@@ -117,6 +177,16 @@ static struct scoop_pcmcia_dev spitz_pcmcia_scoop[] = {
},
};
+static struct scoop_pcmcia_config spitz_pcmcia_config = {
+ .devs = &spitz_pcmcia_scoop[0],
+ .num_devs = 2,
+ .pcmcia_init = spitz_pcmcia_init,
+ .power_ctrl = spitz_pcmcia_pwr,
+};
+
+EXPORT_SYMBOL(spitzscoop_device);
+EXPORT_SYMBOL(spitzscoop2_device);
+
/*
* Spitz SSP Device
@@ -235,27 +305,14 @@ static int spitz_mci_init(struct device *dev, irqreturn_t (*spitz_detect_int)(in
return 0;
}
-/* Power control is shared with one of the CF slots so we have a mess */
static void spitz_mci_setpower(struct device *dev, unsigned int vdd)
{
struct pxamci_platform_data* p_d = dev->platform_data;
- unsigned short cpr = read_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR);
-
- if (( 1 << vdd) & p_d->ocr_mask) {
- /* printk(KERN_DEBUG "%s: on\n", __FUNCTION__); */
- set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_CF_POWER);
- mdelay(2);
- write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, cpr | 0x04);
- } else {
- /* printk(KERN_DEBUG "%s: off\n", __FUNCTION__); */
- write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, cpr & ~0x04);
-
- if (!(cpr | 0x02)) {
- mdelay(1);
- reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_CF_POWER);
- }
- }
+ if (( 1 << vdd) & p_d->ocr_mask)
+ spitz_card_pwr_ctrl(SPITZ_PWR_SD, 0x0004);
+ else
+ spitz_card_pwr_ctrl(SPITZ_PWR_SD, 0x0000);
}
static int spitz_mci_get_ro(struct device *dev)
@@ -351,8 +408,8 @@ static void __init common_init(void)
static void __init spitz_init(void)
{
- scoop_num = 2;
- scoop_devs = &spitz_pcmcia_scoop[0];
+ platform_scoop_config = &spitz_pcmcia_config;
+
spitz_bl_machinfo.set_bl_intensity = spitz_bl_set_intensity;
common_init();
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