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archive/target/linux/generic/patches-4.1/020-ssb-backport.patch
Rafał Miłecki 48b040e2e4 kernel: backport ssb changes from 4.4-rc1 
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>

SVN-Revision: 47483
2015-11-16 06:55:38 +00:00

687 lines
16 KiB
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--- a/arch/mips/bcm47xx/Kconfig
+++ b/arch/mips/bcm47xx/Kconfig
@@ -4,6 +4,7 @@ config BCM47XX_SSB
bool "SSB Support for Broadcom BCM47XX"
select SYS_HAS_CPU_BMIPS32_3300
select SSB
+ select SSB_HOST_SOC
select SSB_DRIVER_MIPS
select SSB_DRIVER_EXTIF
select SSB_EMBEDDED
--- a/drivers/ssb/Kconfig
+++ b/drivers/ssb/Kconfig
@@ -80,6 +80,15 @@ config SSB_SDIOHOST
If unsure, say N
+config SSB_HOST_SOC
+ bool "Support for SSB bus on SoC"
+ depends on SSB
+ help
+ Host interface for a SSB directly mapped into memory. This is
+ for some Broadcom SoCs from the BCM47xx and BCM53xx lines.
+
+ If unsure, say N
+
config SSB_SILENT
bool "No SSB kernel messages"
depends on SSB && EXPERT
--- a/drivers/ssb/Makefile
+++ b/drivers/ssb/Makefile
@@ -5,8 +5,9 @@ ssb-$(CONFIG_SSB_SPROM) += sprom.o
# host support
ssb-$(CONFIG_SSB_PCIHOST) += pci.o pcihost_wrapper.o
-ssb-$(CONFIG_SSB_PCMCIAHOST) += pcmcia.o
+ssb-$(CONFIG_SSB_PCMCIAHOST) += pcmcia.o bridge_pcmcia_80211.o
ssb-$(CONFIG_SSB_SDIOHOST) += sdio.o
+ssb-$(CONFIG_SSB_HOST_SOC) += host_soc.o
# built-in drivers
ssb-y += driver_chipcommon.o
--- /dev/null
+++ b/drivers/ssb/bridge_pcmcia_80211.c
@@ -0,0 +1,128 @@
+/*
+ * Broadcom 43xx PCMCIA-SSB bridge module
+ *
+ * Copyright (c) 2007 Michael Buesch <m@bues.ch>
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include <linux/ssb/ssb.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+
+#include <pcmcia/cistpl.h>
+#include <pcmcia/ciscode.h>
+#include <pcmcia/ds.h>
+#include <pcmcia/cisreg.h>
+
+#include "ssb_private.h"
+
+static const struct pcmcia_device_id ssb_host_pcmcia_tbl[] = {
+ PCMCIA_DEVICE_MANF_CARD(0x2D0, 0x448),
+ PCMCIA_DEVICE_MANF_CARD(0x2D0, 0x476),
+ PCMCIA_DEVICE_NULL,
+};
+
+MODULE_DEVICE_TABLE(pcmcia, ssb_host_pcmcia_tbl);
+
+static int ssb_host_pcmcia_probe(struct pcmcia_device *dev)
+{
+ struct ssb_bus *ssb;
+ int err = -ENOMEM;
+ int res = 0;
+
+ ssb = kzalloc(sizeof(*ssb), GFP_KERNEL);
+ if (!ssb)
+ goto out_error;
+
+ err = -ENODEV;
+
+ dev->config_flags |= CONF_ENABLE_IRQ;
+
+ dev->resource[2]->flags |= WIN_ENABLE | WIN_DATA_WIDTH_16 |
+ WIN_USE_WAIT;
+ dev->resource[2]->start = 0;
+ dev->resource[2]->end = SSB_CORE_SIZE;
+ res = pcmcia_request_window(dev, dev->resource[2], 250);
+ if (res != 0)
+ goto err_kfree_ssb;
+
+ res = pcmcia_map_mem_page(dev, dev->resource[2], 0);
+ if (res != 0)
+ goto err_disable;
+
+ if (!dev->irq)
+ goto err_disable;
+
+ res = pcmcia_enable_device(dev);
+ if (res != 0)
+ goto err_disable;
+
+ err = ssb_bus_pcmciabus_register(ssb, dev, dev->resource[2]->start);
+ if (err)
+ goto err_disable;
+ dev->priv = ssb;
+
+ return 0;
+
+err_disable:
+ pcmcia_disable_device(dev);
+err_kfree_ssb:
+ kfree(ssb);
+out_error:
+ ssb_err("Initialization failed (%d, %d)\n", res, err);
+ return err;
+}
+
+static void ssb_host_pcmcia_remove(struct pcmcia_device *dev)
+{
+ struct ssb_bus *ssb = dev->priv;
+
+ ssb_bus_unregister(ssb);
+ pcmcia_disable_device(dev);
+ kfree(ssb);
+ dev->priv = NULL;
+}
+
+#ifdef CONFIG_PM
+static int ssb_host_pcmcia_suspend(struct pcmcia_device *dev)
+{
+ struct ssb_bus *ssb = dev->priv;
+
+ return ssb_bus_suspend(ssb);
+}
+
+static int ssb_host_pcmcia_resume(struct pcmcia_device *dev)
+{
+ struct ssb_bus *ssb = dev->priv;
+
+ return ssb_bus_resume(ssb);
+}
+#else /* CONFIG_PM */
+# define ssb_host_pcmcia_suspend NULL
+# define ssb_host_pcmcia_resume NULL
+#endif /* CONFIG_PM */
+
+static struct pcmcia_driver ssb_host_pcmcia_driver = {
+ .owner = THIS_MODULE,
+ .name = "ssb-pcmcia",
+ .id_table = ssb_host_pcmcia_tbl,
+ .probe = ssb_host_pcmcia_probe,
+ .remove = ssb_host_pcmcia_remove,
+ .suspend = ssb_host_pcmcia_suspend,
+ .resume = ssb_host_pcmcia_resume,
+};
+
+/*
+ * These are not module init/exit functions!
+ * The module_pcmcia_driver() helper cannot be used here.
+ */
+int ssb_host_pcmcia_init(void)
+{
+ return pcmcia_register_driver(&ssb_host_pcmcia_driver);
+}
+
+void ssb_host_pcmcia_exit(void)
+{
+ pcmcia_unregister_driver(&ssb_host_pcmcia_driver);
+}
--- /dev/null
+++ b/drivers/ssb/host_soc.c
@@ -0,0 +1,173 @@
+/*
+ * Sonics Silicon Backplane SoC host related functions.
+ * Subsystem core
+ *
+ * Copyright 2005, Broadcom Corporation
+ * Copyright 2006, 2007, Michael Buesch <m@bues.ch>
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include <linux/ssb/ssb.h>
+
+#include "ssb_private.h"
+
+static u8 ssb_host_soc_read8(struct ssb_device *dev, u16 offset)
+{
+ struct ssb_bus *bus = dev->bus;
+
+ offset += dev->core_index * SSB_CORE_SIZE;
+ return readb(bus->mmio + offset);
+}
+
+static u16 ssb_host_soc_read16(struct ssb_device *dev, u16 offset)
+{
+ struct ssb_bus *bus = dev->bus;
+
+ offset += dev->core_index * SSB_CORE_SIZE;
+ return readw(bus->mmio + offset);
+}
+
+static u32 ssb_host_soc_read32(struct ssb_device *dev, u16 offset)
+{
+ struct ssb_bus *bus = dev->bus;
+
+ offset += dev->core_index * SSB_CORE_SIZE;
+ return readl(bus->mmio + offset);
+}
+
+#ifdef CONFIG_SSB_BLOCKIO
+static void ssb_host_soc_block_read(struct ssb_device *dev, void *buffer,
+ size_t count, u16 offset, u8 reg_width)
+{
+ struct ssb_bus *bus = dev->bus;
+ void __iomem *addr;
+
+ offset += dev->core_index * SSB_CORE_SIZE;
+ addr = bus->mmio + offset;
+
+ switch (reg_width) {
+ case sizeof(u8): {
+ u8 *buf = buffer;
+
+ while (count) {
+ *buf = __raw_readb(addr);
+ buf++;
+ count--;
+ }
+ break;
+ }
+ case sizeof(u16): {
+ __le16 *buf = buffer;
+
+ SSB_WARN_ON(count & 1);
+ while (count) {
+ *buf = (__force __le16)__raw_readw(addr);
+ buf++;
+ count -= 2;
+ }
+ break;
+ }
+ case sizeof(u32): {
+ __le32 *buf = buffer;
+
+ SSB_WARN_ON(count & 3);
+ while (count) {
+ *buf = (__force __le32)__raw_readl(addr);
+ buf++;
+ count -= 4;
+ }
+ break;
+ }
+ default:
+ SSB_WARN_ON(1);
+ }
+}
+#endif /* CONFIG_SSB_BLOCKIO */
+
+static void ssb_host_soc_write8(struct ssb_device *dev, u16 offset, u8 value)
+{
+ struct ssb_bus *bus = dev->bus;
+
+ offset += dev->core_index * SSB_CORE_SIZE;
+ writeb(value, bus->mmio + offset);
+}
+
+static void ssb_host_soc_write16(struct ssb_device *dev, u16 offset, u16 value)
+{
+ struct ssb_bus *bus = dev->bus;
+
+ offset += dev->core_index * SSB_CORE_SIZE;
+ writew(value, bus->mmio + offset);
+}
+
+static void ssb_host_soc_write32(struct ssb_device *dev, u16 offset, u32 value)
+{
+ struct ssb_bus *bus = dev->bus;
+
+ offset += dev->core_index * SSB_CORE_SIZE;
+ writel(value, bus->mmio + offset);
+}
+
+#ifdef CONFIG_SSB_BLOCKIO
+static void ssb_host_soc_block_write(struct ssb_device *dev, const void *buffer,
+ size_t count, u16 offset, u8 reg_width)
+{
+ struct ssb_bus *bus = dev->bus;
+ void __iomem *addr;
+
+ offset += dev->core_index * SSB_CORE_SIZE;
+ addr = bus->mmio + offset;
+
+ switch (reg_width) {
+ case sizeof(u8): {
+ const u8 *buf = buffer;
+
+ while (count) {
+ __raw_writeb(*buf, addr);
+ buf++;
+ count--;
+ }
+ break;
+ }
+ case sizeof(u16): {
+ const __le16 *buf = buffer;
+
+ SSB_WARN_ON(count & 1);
+ while (count) {
+ __raw_writew((__force u16)(*buf), addr);
+ buf++;
+ count -= 2;
+ }
+ break;
+ }
+ case sizeof(u32): {
+ const __le32 *buf = buffer;
+
+ SSB_WARN_ON(count & 3);
+ while (count) {
+ __raw_writel((__force u32)(*buf), addr);
+ buf++;
+ count -= 4;
+ }
+ break;
+ }
+ default:
+ SSB_WARN_ON(1);
+ }
+}
+#endif /* CONFIG_SSB_BLOCKIO */
+
+/* Ops for the plain SSB bus without a host-device (no PCI or PCMCIA). */
+const struct ssb_bus_ops ssb_host_soc_ops = {
+ .read8 = ssb_host_soc_read8,
+ .read16 = ssb_host_soc_read16,
+ .read32 = ssb_host_soc_read32,
+ .write8 = ssb_host_soc_write8,
+ .write16 = ssb_host_soc_write16,
+ .write32 = ssb_host_soc_write32,
+#ifdef CONFIG_SSB_BLOCKIO
+ .block_read = ssb_host_soc_block_read,
+ .block_write = ssb_host_soc_block_write,
+#endif
+};
--- a/drivers/ssb/main.c
+++ b/drivers/ssb/main.c
@@ -596,166 +596,6 @@ error:
return err;
}
-static u8 ssb_ssb_read8(struct ssb_device *dev, u16 offset)
-{
- struct ssb_bus *bus = dev->bus;
-
- offset += dev->core_index * SSB_CORE_SIZE;
- return readb(bus->mmio + offset);
-}
-
-static u16 ssb_ssb_read16(struct ssb_device *dev, u16 offset)
-{
- struct ssb_bus *bus = dev->bus;
-
- offset += dev->core_index * SSB_CORE_SIZE;
- return readw(bus->mmio + offset);
-}
-
-static u32 ssb_ssb_read32(struct ssb_device *dev, u16 offset)
-{
- struct ssb_bus *bus = dev->bus;
-
- offset += dev->core_index * SSB_CORE_SIZE;
- return readl(bus->mmio + offset);
-}
-
-#ifdef CONFIG_SSB_BLOCKIO
-static void ssb_ssb_block_read(struct ssb_device *dev, void *buffer,
- size_t count, u16 offset, u8 reg_width)
-{
- struct ssb_bus *bus = dev->bus;
- void __iomem *addr;
-
- offset += dev->core_index * SSB_CORE_SIZE;
- addr = bus->mmio + offset;
-
- switch (reg_width) {
- case sizeof(u8): {
- u8 *buf = buffer;
-
- while (count) {
- *buf = __raw_readb(addr);
- buf++;
- count--;
- }
- break;
- }
- case sizeof(u16): {
- __le16 *buf = buffer;
-
- SSB_WARN_ON(count & 1);
- while (count) {
- *buf = (__force __le16)__raw_readw(addr);
- buf++;
- count -= 2;
- }
- break;
- }
- case sizeof(u32): {
- __le32 *buf = buffer;
-
- SSB_WARN_ON(count & 3);
- while (count) {
- *buf = (__force __le32)__raw_readl(addr);
- buf++;
- count -= 4;
- }
- break;
- }
- default:
- SSB_WARN_ON(1);
- }
-}
-#endif /* CONFIG_SSB_BLOCKIO */
-
-static void ssb_ssb_write8(struct ssb_device *dev, u16 offset, u8 value)
-{
- struct ssb_bus *bus = dev->bus;
-
- offset += dev->core_index * SSB_CORE_SIZE;
- writeb(value, bus->mmio + offset);
-}
-
-static void ssb_ssb_write16(struct ssb_device *dev, u16 offset, u16 value)
-{
- struct ssb_bus *bus = dev->bus;
-
- offset += dev->core_index * SSB_CORE_SIZE;
- writew(value, bus->mmio + offset);
-}
-
-static void ssb_ssb_write32(struct ssb_device *dev, u16 offset, u32 value)
-{
- struct ssb_bus *bus = dev->bus;
-
- offset += dev->core_index * SSB_CORE_SIZE;
- writel(value, bus->mmio + offset);
-}
-
-#ifdef CONFIG_SSB_BLOCKIO
-static void ssb_ssb_block_write(struct ssb_device *dev, const void *buffer,
- size_t count, u16 offset, u8 reg_width)
-{
- struct ssb_bus *bus = dev->bus;
- void __iomem *addr;
-
- offset += dev->core_index * SSB_CORE_SIZE;
- addr = bus->mmio + offset;
-
- switch (reg_width) {
- case sizeof(u8): {
- const u8 *buf = buffer;
-
- while (count) {
- __raw_writeb(*buf, addr);
- buf++;
- count--;
- }
- break;
- }
- case sizeof(u16): {
- const __le16 *buf = buffer;
-
- SSB_WARN_ON(count & 1);
- while (count) {
- __raw_writew((__force u16)(*buf), addr);
- buf++;
- count -= 2;
- }
- break;
- }
- case sizeof(u32): {
- const __le32 *buf = buffer;
-
- SSB_WARN_ON(count & 3);
- while (count) {
- __raw_writel((__force u32)(*buf), addr);
- buf++;
- count -= 4;
- }
- break;
- }
- default:
- SSB_WARN_ON(1);
- }
-}
-#endif /* CONFIG_SSB_BLOCKIO */
-
-/* Ops for the plain SSB bus without a host-device (no PCI or PCMCIA). */
-static const struct ssb_bus_ops ssb_ssb_ops = {
- .read8 = ssb_ssb_read8,
- .read16 = ssb_ssb_read16,
- .read32 = ssb_ssb_read32,
- .write8 = ssb_ssb_write8,
- .write16 = ssb_ssb_write16,
- .write32 = ssb_ssb_write32,
-#ifdef CONFIG_SSB_BLOCKIO
- .block_read = ssb_ssb_block_read,
- .block_write = ssb_ssb_block_write,
-#endif
-};
-
static int ssb_fetch_invariants(struct ssb_bus *bus,
ssb_invariants_func_t get_invariants)
{
@@ -876,7 +716,6 @@ int ssb_bus_pcibus_register(struct ssb_b
return err;
}
-EXPORT_SYMBOL(ssb_bus_pcibus_register);
#endif /* CONFIG_SSB_PCIHOST */
#ifdef CONFIG_SSB_PCMCIAHOST
@@ -898,7 +737,6 @@ int ssb_bus_pcmciabus_register(struct ss
return err;
}
-EXPORT_SYMBOL(ssb_bus_pcmciabus_register);
#endif /* CONFIG_SSB_PCMCIAHOST */
#ifdef CONFIG_SSB_SDIOHOST
@@ -923,13 +761,14 @@ int ssb_bus_sdiobus_register(struct ssb_
EXPORT_SYMBOL(ssb_bus_sdiobus_register);
#endif /* CONFIG_SSB_PCMCIAHOST */
+#ifdef CONFIG_SSB_HOST_SOC
int ssb_bus_ssbbus_register(struct ssb_bus *bus, unsigned long baseaddr,
ssb_invariants_func_t get_invariants)
{
int err;
bus->bustype = SSB_BUSTYPE_SSB;
- bus->ops = &ssb_ssb_ops;
+ bus->ops = &ssb_host_soc_ops;
err = ssb_bus_register(bus, get_invariants, baseaddr);
if (!err) {
@@ -939,6 +778,7 @@ int ssb_bus_ssbbus_register(struct ssb_b
return err;
}
+#endif
int __ssb_driver_register(struct ssb_driver *drv, struct module *owner)
{
@@ -1465,6 +1305,12 @@ static int __init ssb_modinit(void)
/* don't fail SSB init because of this */
err = 0;
}
+ err = ssb_host_pcmcia_init();
+ if (err) {
+ ssb_err("PCMCIA host initialization failed\n");
+ /* don't fail SSB init because of this */
+ err = 0;
+ }
err = ssb_gige_init();
if (err) {
ssb_err("SSB Broadcom Gigabit Ethernet driver initialization failed\n");
@@ -1482,6 +1328,7 @@ fs_initcall(ssb_modinit);
static void __exit ssb_modexit(void)
{
ssb_gige_exit();
+ ssb_host_pcmcia_exit();
b43_pci_ssb_bridge_exit();
bus_unregister(&ssb_bustype);
}
--- a/drivers/ssb/pcmcia.c
+++ b/drivers/ssb/pcmcia.c
@@ -147,8 +147,7 @@ error:
return err;
}
-int ssb_pcmcia_switch_core(struct ssb_bus *bus,
- struct ssb_device *dev)
+static int ssb_pcmcia_switch_core(struct ssb_bus *bus, struct ssb_device *dev)
{
int err;
--- a/drivers/ssb/sdio.c
+++ b/drivers/ssb/sdio.c
@@ -200,7 +200,7 @@ out:
}
/* host must be already claimed */
-int ssb_sdio_switch_core(struct ssb_bus *bus, struct ssb_device *dev)
+static int ssb_sdio_switch_core(struct ssb_bus *bus, struct ssb_device *dev)
{
u8 coreidx = dev->core_index;
u32 sbaddr;
--- a/drivers/ssb/ssb_private.h
+++ b/drivers/ssb/ssb_private.h
@@ -85,8 +85,6 @@ static inline int ssb_pci_init(struct ss
/* pcmcia.c */
#ifdef CONFIG_SSB_PCMCIAHOST
-extern int ssb_pcmcia_switch_core(struct ssb_bus *bus,
- struct ssb_device *dev);
extern int ssb_pcmcia_switch_coreidx(struct ssb_bus *bus,
u8 coreidx);
extern int ssb_pcmcia_switch_segment(struct ssb_bus *bus,
@@ -96,13 +94,10 @@ extern int ssb_pcmcia_get_invariants(str
extern int ssb_pcmcia_hardware_setup(struct ssb_bus *bus);
extern void ssb_pcmcia_exit(struct ssb_bus *bus);
extern int ssb_pcmcia_init(struct ssb_bus *bus);
+extern int ssb_host_pcmcia_init(void);
+extern void ssb_host_pcmcia_exit(void);
extern const struct ssb_bus_ops ssb_pcmcia_ops;
#else /* CONFIG_SSB_PCMCIAHOST */
-static inline int ssb_pcmcia_switch_core(struct ssb_bus *bus,
- struct ssb_device *dev)
-{
- return 0;
-}
static inline int ssb_pcmcia_switch_coreidx(struct ssb_bus *bus,
u8 coreidx)
{
@@ -124,6 +119,13 @@ static inline int ssb_pcmcia_init(struct
{
return 0;
}
+static inline int ssb_host_pcmcia_init(void)
+{
+ return 0;
+}
+static inline void ssb_host_pcmcia_exit(void)
+{
+}
#endif /* CONFIG_SSB_PCMCIAHOST */
/* sdio.c */
@@ -132,9 +134,7 @@ extern int ssb_sdio_get_invariants(struc
struct ssb_init_invariants *iv);
extern u32 ssb_sdio_scan_read32(struct ssb_bus *bus, u16 offset);
-extern int ssb_sdio_switch_core(struct ssb_bus *bus, struct ssb_device *dev);
extern int ssb_sdio_scan_switch_coreidx(struct ssb_bus *bus, u8 coreidx);
-extern int ssb_sdio_hardware_setup(struct ssb_bus *bus);
extern void ssb_sdio_exit(struct ssb_bus *bus);
extern int ssb_sdio_init(struct ssb_bus *bus);
@@ -144,19 +144,10 @@ static inline u32 ssb_sdio_scan_read32(s
{
return 0;
}
-static inline int ssb_sdio_switch_core(struct ssb_bus *bus,
- struct ssb_device *dev)
-{
- return 0;
-}
static inline int ssb_sdio_scan_switch_coreidx(struct ssb_bus *bus, u8 coreidx)
{
return 0;
}
-static inline int ssb_sdio_hardware_setup(struct ssb_bus *bus)
-{
- return 0;
-}
static inline void ssb_sdio_exit(struct ssb_bus *bus)
{
}
@@ -166,6 +157,13 @@ static inline int ssb_sdio_init(struct s
}
#endif /* CONFIG_SSB_SDIOHOST */
+/**************************************************
+ * host_soc.c
+ **************************************************/
+
+#ifdef CONFIG_SSB_HOST_SOC
+extern const struct ssb_bus_ops ssb_host_soc_ops;
+#endif
/* scan.c */
extern const char *ssb_core_name(u16 coreid);
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