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openwrt/target/linux/brcm47xx-2.6/patches-2.6.22/210-ssb_fixes.patch
Peter Denison 46d194834b Move SSB out of brcm47xx target into generic-2.6 target 
SVN-Revision: 7844
2007-07-01 22:44:05 +00:00

373 lines
12 KiB
Diff
Raw Blame History

Index: linux-2.6.22-rc5/drivers/ssb/driver_chipcommon.c
===================================================================
--- linux-2.6.22-rc5.orig/drivers/ssb/driver_chipcommon.c 2007-06-21 23:04:38.000000000 +0100
+++ linux-2.6.22-rc5/drivers/ssb/driver_chipcommon.c 2007-06-24 20:07:15.000000000 +0100
@@ -264,6 +264,31 @@
ssb_chipco_set_clockmode(cc, SSB_CLKMODE_FAST);
}
+/* TODO: These two functions are a clear candidate for merging, but one gets
+ * the processor clock, and the other gets the bus clock.
+ */
+void ssb_chipco_get_clockcpu(struct ssb_chipcommon *cc,
+ u32 *plltype, u32 *n, u32 *m)
+{
+ *n = chipco_read32(cc, SSB_CHIPCO_CLOCK_N);
+ *plltype = (cc->capabilities & SSB_CHIPCO_CAP_PLLT);
+ switch (*plltype) {
+ case SSB_PLLTYPE_2:
+ case SSB_PLLTYPE_4:
+ case SSB_PLLTYPE_6:
+ case SSB_PLLTYPE_7:
+ *m = chipco_read32(cc, SSB_CHIPCO_CLOCK_MIPS);
+ break;
+ case SSB_PLLTYPE_3:
+ /* 5350 uses m2 to control mips */
+ *m = chipco_read32(cc, SSB_CHIPCO_CLOCK_M2);
+ break;
+ default:
+ *m = chipco_read32(cc, SSB_CHIPCO_CLOCK_SB);
+ break;
+ }
+}
+
void ssb_chipco_get_clockcontrol(struct ssb_chipcommon *cc,
u32 *plltype, u32 *n, u32 *m)
{
@@ -400,3 +425,13 @@
return nr_ports;
}
#endif /* CONFIG_SSB_SERIAL */
+
+/* Set chip watchdog reset timer to fire in 'ticks' backplane cycles */
+int
+ssb_chipco_watchdog(struct ssb_chipcommon *cc, uint ticks)
+{
+ /* instant NMI */
+ chipco_write32(cc, SSB_CHIPCO_WATCHDOG, ticks);
+ return 0;
+}
+EXPORT_SYMBOL(ssb_chipco_watchdog);
Index: linux-2.6.22-rc5/drivers/ssb/driver_mipscore.c
===================================================================
--- linux-2.6.22-rc5.orig/drivers/ssb/driver_mipscore.c 2007-06-10 16:44:31.000000000 +0100
+++ linux-2.6.22-rc5/drivers/ssb/driver_mipscore.c 2007-06-24 20:48:52.000000000 +0100
@@ -4,6 +4,7 @@
*
* Copyright 2005, Broadcom Corporation
* Copyright 2006, 2007, Michael Buesch <mb@bu3sch.de>
+ * Copyright 2006, 2007, Felix Fietkau <nbd@openwrt.org>
*
* Licensed under the GNU/GPL. See COPYING for details.
*/
@@ -31,6 +32,16 @@
ssb_write32(mcore->dev, offset, value);
}
+static inline u32 extif_read32(struct ssb_extif *extif, u16 offset)
+{
+ return ssb_read32(extif->dev, offset);
+}
+
+static inline void extif_write32(struct ssb_extif *extif, u16 offset, u32 value)
+{
+ ssb_write32(extif->dev, offset, value);
+}
+
static const u32 ipsflag_irq_mask[] = {
0,
SSB_IPSFLAG_IRQ1,
@@ -118,9 +129,9 @@
}
/* XXX: leave here or move into separate extif driver? */
-static int ssb_extif_serial_init(struct ssb_device *dev, struct ssb_serial_ports *ports)
+static int ssb_extif_serial_init(struct ssb_extif *dev, struct ssb_serial_port *ports)
{
-
+ return 0;
}
@@ -174,23 +185,76 @@
{
struct ssb_bus *bus = mcore->dev->bus;
+ mcore->flash_buswidth = 2;
if (bus->chipco.dev) {
mcore->flash_window = 0x1c000000;
- mcore->flash_window_size = 0x800000;
+ mcore->flash_window_size = 0x02000000;
+ if ((ssb_read32(bus->chipco.dev, SSB_CHIPCO_FLASH_CFG)
+ & SSB_CHIPCO_CFG_DS16) == 0)
+ mcore->flash_buswidth = 1;
} else {
mcore->flash_window = 0x1fc00000;
- mcore->flash_window_size = 0x400000;
+ mcore->flash_window_size = 0x00400000;
}
}
+static void ssb_extif_timing_init(struct ssb_extif *extif, u32 ns)
+{
+ u32 tmp;
+
+ /* Initialize extif so we can get to the LEDs and external UART */
+ extif_write32(extif, SSB_EXTIF_PROG_CFG, SSB_EXTCFG_EN);
+
+ /* Set timing for the flash */
+ tmp = DIV_ROUND_UP(10, ns) << SSB_PROG_WCNT_3_SHIFT;
+ tmp |= DIV_ROUND_UP(40, ns) << SSB_PROG_WCNT_1_SHIFT;
+ tmp |= DIV_ROUND_UP(120, ns);
+ extif_write32(extif, SSB_EXTIF_PROG_WAITCNT, tmp);
+
+ /* Set programmable interface timing for external uart */
+ tmp = DIV_ROUND_UP(10, ns) << SSB_PROG_WCNT_3_SHIFT;
+ tmp |= DIV_ROUND_UP(20, ns) << SSB_PROG_WCNT_2_SHIFT;
+ tmp |= DIV_ROUND_UP(100, ns) << SSB_PROG_WCNT_1_SHIFT;
+ tmp |= DIV_ROUND_UP(120, ns);
+ extif_write32(extif, SSB_EXTIF_PROG_WAITCNT, tmp);
+}
-static void ssb_cpu_clock(struct ssb_mipscore *mcore)
+static inline void ssb_extif_get_clockcontrol(struct ssb_extif *extif,
+ u32 *pll_type, u32 *n, u32 *m)
{
+ *pll_type = SSB_PLLTYPE_1;
+ *n = extif_read32(extif, SSB_EXTIF_CLOCK_N);
+ *m = extif_read32(extif, SSB_EXTIF_CLOCK_SB);
}
-void ssb_mipscore_init(struct ssb_mipscore *mcore)
+u32 ssb_cpu_clock(struct ssb_mipscore *mcore)
{
struct ssb_bus *bus = mcore->dev->bus;
+ u32 pll_type, n, m, rate = 0;
+
+ if (bus->extif.dev) {
+ ssb_extif_get_clockcontrol(&bus->extif, &pll_type, &n, &m);
+ } else if (bus->chipco.dev) {
+ ssb_chipco_get_clockcpu(&bus->chipco, &pll_type, &n, &m);
+ } else
+ return 0;
+
+ if ((pll_type == SSB_PLLTYPE_5) || (bus->chip_id == 0x5365)) {
+ rate = 200000000;
+ } else {
+ rate = ssb_calc_clock_rate(pll_type, n, m);
+ }
+
+ if (pll_type == SSB_PLLTYPE_6) {
+ rate *= 2;
+ }
+
+ return rate;
+}
+
+void ssb_mipscore_init(struct ssb_mipscore *mcore)
+{
+ struct ssb_bus *bus;
struct ssb_device *dev;
unsigned long hz, ns;
unsigned int irq, i;
@@ -198,6 +262,8 @@
if (!mcore->dev)
return; /* We don't have a MIPS core */
+ bus = mcore->dev->bus;
+
ssb_dprintk(KERN_INFO PFX "Initializing MIPS core...\n");
hz = ssb_clockspeed(bus);
@@ -205,28 +271,9 @@
hz = 100000000;
ns = 1000000000 / hz;
-//TODO
-#if 0
- if (have EXTIF) {
- /* Initialize extif so we can get to the LEDs and external UART */
- W_REG(&eir->prog_config, CF_EN);
-
- /* Set timing for the flash */
- tmp = CEIL(10, ns) << FW_W3_SHIFT; /* W3 = 10nS */
- tmp = tmp | (CEIL(40, ns) << FW_W1_SHIFT); /* W1 = 40nS */
- tmp = tmp | CEIL(120, ns); /* W0 = 120nS */
- W_REG(&eir->prog_waitcount, tmp); /* 0x01020a0c for a 100Mhz clock */
-
- /* Set programmable interface timing for external uart */
- tmp = CEIL(10, ns) << FW_W3_SHIFT; /* W3 = 10nS */
- tmp = tmp | (CEIL(20, ns) << FW_W2_SHIFT); /* W2 = 20nS */
- tmp = tmp | (CEIL(100, ns) << FW_W1_SHIFT); /* W1 = 100nS */
- tmp = tmp | CEIL(120, ns); /* W0 = 120nS */
- W_REG(&eir->prog_waitcount, tmp);
- }
- else... chipcommon
-#endif
- if (bus->chipco.dev)
+ if (bus->extif.dev)
+ ssb_extif_timing_init(&bus->extif, ns);
+ else if (bus->chipco.dev)
ssb_chipco_timing_init(&bus->chipco, ns);
/* Assign IRQs to all cores on the bus, start with irq line 2, because serial usually takes 1 */
@@ -256,3 +303,5 @@
ssb_mips_serial_init(mcore);
ssb_mips_flash_detect(mcore);
}
+
+EXPORT_SYMBOL(ssb_mips_irq);
Index: linux-2.6.22-rc5/include/linux/ssb/ssb_driver_chipcommon.h
===================================================================
--- linux-2.6.22-rc5.orig/include/linux/ssb/ssb_driver_chipcommon.h 2007-06-10 16:44:47.000000000 +0100
+++ linux-2.6.22-rc5/include/linux/ssb/ssb_driver_chipcommon.h 2007-06-24 20:07:15.000000000 +0100
@@ -364,6 +364,8 @@
extern void ssb_chipco_suspend(struct ssb_chipcommon *cc, pm_message_t state);
extern void ssb_chipco_resume(struct ssb_chipcommon *cc);
+extern void ssb_chipco_get_clockcpu(struct ssb_chipcommon *cc,
+ u32 *plltype, u32 *n, u32 *m);
extern void ssb_chipco_get_clockcontrol(struct ssb_chipcommon *cc,
u32 *plltype, u32 *n, u32 *m);
extern void ssb_chipco_timing_init(struct ssb_chipcommon *cc,
@@ -378,6 +380,46 @@
extern void ssb_chipco_set_clockmode(struct ssb_chipcommon *cc,
enum ssb_clkmode mode);
+/* GPIO functions */
+static inline u32 ssb_chipco_gpio_in(struct ssb_chipcommon *cc,
+ u32 mask)
+{
+ return ssb_read32(cc->dev, SSB_CHIPCO_GPIOIN) & mask;
+}
+
+static inline u32 ssb_chipco_gpio_out(struct ssb_chipcommon *cc,
+ u32 mask, u32 value)
+{
+ return ssb_write32_masked(cc->dev, SSB_CHIPCO_GPIOOUT, mask, value);
+}
+
+static inline u32 ssb_chipco_gpio_outen(struct ssb_chipcommon *cc,
+ u32 mask, u32 value)
+{
+ return ssb_write32_masked(cc->dev, SSB_CHIPCO_GPIOOUTEN, mask, value);
+}
+
+static inline u32 ssb_chipco_gpio_control(struct ssb_chipcommon *cc,
+ u32 mask, u32 value)
+{
+ return ssb_write32_masked(cc->dev, SSB_CHIPCO_GPIOCTL, mask, value);
+}
+
+static inline u32 ssb_chipco_gpio_intmask(struct ssb_chipcommon *cc,
+ u32 mask, u32 value)
+{
+ return ssb_write32_masked(cc->dev, SSB_CHIPCO_GPIOIRQ, mask, value);
+}
+
+static inline u32 ssb_chipco_gpio_polarity(struct ssb_chipcommon *cc,
+ u32 mask, u32 value)
+{
+ return ssb_write32_masked(cc->dev, SSB_CHIPCO_GPIOPOL, mask, value);
+}
+/* TODO: GPIO reservation */
+
+extern int ssb_chipco_watchdog(struct ssb_chipcommon *cc, uint ticks);
+
#ifdef CONFIG_SSB_SERIAL
extern int ssb_chipco_serial_init(struct ssb_chipcommon *cc,
struct ssb_serial_port *ports);
Index: linux-2.6.22-rc5/include/linux/ssb/ssb_driver_extif.h
===================================================================
--- linux-2.6.22-rc5.orig/include/linux/ssb/ssb_driver_extif.h 2007-06-10 16:44:47.000000000 +0100
+++ linux-2.6.22-rc5/include/linux/ssb/ssb_driver_extif.h 2007-06-24 20:07:15.000000000 +0100
@@ -158,6 +158,36 @@
/* watchdog */
#define SSB_EXTIF_WATCHDOG_CLK 48000000 /* Hz */
+/* GPIO functions */
+static inline u32 ssb_extif_gpio_in(struct ssb_extif *extif,
+ u32 mask)
+{
+ return ssb_read32(extif->dev, SSB_EXTIF_GPIO_IN) & mask;
+}
+
+static inline u32 ssb_extif_gpio_out(struct ssb_extif *extif,
+ u32 mask, u32 value)
+{
+ return ssb_write32_masked(extif->dev, SSB_EXTIF_GPIO_OUT(0), mask, value);
+}
+
+static inline u32 ssb_extif_gpio_outen(struct ssb_extif *extif,
+ u32 mask, u32 value)
+{
+ return ssb_write32_masked(extif->dev, SSB_EXTIF_GPIO_OUTEN(0), mask, value);
+}
+
+static inline u32 ssb_extif_gpio_polarity(struct ssb_extif *extif,
+ u32 mask, u32 value)
+{
+ return ssb_write32_masked(extif->dev, SSB_EXTIF_GPIO_INTPOL, mask, value);
+}
+
+static inline u32 ssb_extif_gpio_intmask(struct ssb_extif *extif,
+ u32 mask, u32 value)
+{
+ return ssb_write32_masked(extif->dev, SSB_EXTIF_GPIO_INTMASK, mask, value);
+}
#endif /* __KERNEL__ */
#endif /* LINUX_SSB_EXTIFCORE_H_ */
Index: linux-2.6.22-rc5/include/linux/ssb/ssb_driver_mips.h
===================================================================
--- linux-2.6.22-rc5.orig/include/linux/ssb/ssb_driver_mips.h 2007-06-10 16:44:47.000000000 +0100
+++ linux-2.6.22-rc5/include/linux/ssb/ssb_driver_mips.h 2007-06-24 20:07:15.000000000 +0100
@@ -22,11 +22,13 @@
int nr_serial_ports;
struct ssb_serial_port serial_ports[4];
+ int flash_buswidth;
u32 flash_window;
u32 flash_window_size;
};
extern void ssb_mipscore_init(struct ssb_mipscore *mcore);
+extern u32 ssb_cpu_clock(struct ssb_mipscore *mcore);
extern unsigned int ssb_mips_irq(struct ssb_device *dev);
Index: linux-2.6.22-rc5/include/linux/ssb/ssb.h
===================================================================
--- linux-2.6.22-rc5.orig/include/linux/ssb/ssb.h 2007-06-24 19:49:56.000000000 +0100
+++ linux-2.6.22-rc5/include/linux/ssb/ssb.h 2007-06-24 20:07:15.000000000 +0100
@@ -270,6 +270,12 @@
#define SSB_CHIPPACK_BCM4712M 2 /* Medium 225pin 4712 */
#define SSB_CHIPPACK_BCM4712L 0 /* Large 340pin 4712 */
+static inline u16 ssb_read16(struct ssb_device *dev, u16 offset);
+static inline u32 ssb_read32(struct ssb_device *dev, u16 offset);
+static inline void ssb_write16(struct ssb_device *dev, u16 offset, u16 value);
+static inline void ssb_write32(struct ssb_device *dev, u16 offset, u32 value);
+static inline u32 ssb_write32_masked(struct ssb_device *dev, u16 offset, u32 mask, u32 value);
+
#include <linux/ssb/ssb_driver_chipcommon.h>
#include <linux/ssb/ssb_driver_mips.h>
#include <linux/ssb/ssb_driver_extif.h>
@@ -388,6 +394,16 @@
dev->ops->write32(dev, offset, value);
}
+static inline u32 ssb_write32_masked(struct ssb_device *dev,
+ u16 offset,
+ u32 mask,
+ u32 value)
+{
+ value &= mask;
+ value |= ssb_read32(dev, offset) & ~mask;
+ ssb_write32(dev, offset, value);
+ return value;
+}
/* Translation (routing) bits that need to be ORed to DMA
* addresses before they are given to a device. */
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