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-rw-r--r--target/linux/generic/patches-3.14/025-bcma_backport.patch258
1 files changed, 245 insertions, 13 deletions
diff --git a/target/linux/generic/patches-3.14/025-bcma_backport.patch b/target/linux/generic/patches-3.14/025-bcma_backport.patch
index 1bb026c1e7..0aff0f7dc7 100644
--- a/target/linux/generic/patches-3.14/025-bcma_backport.patch
+++ b/target/linux/generic/patches-3.14/025-bcma_backport.patch
@@ -33,7 +33,7 @@
static int bcma_gpio_to_irq(struct gpio_chip *chip, unsigned gpio)
{
struct bcma_drv_cc *cc = bcma_gpio_get_cc(chip);
-@@ -215,10 +215,18 @@ int bcma_gpio_init(struct bcma_drv_cc *c
+@@ -215,10 +215,22 @@ int bcma_gpio_init(struct bcma_drv_cc *c
chip->set = bcma_gpio_set_value;
chip->direction_input = bcma_gpio_direction_input;
chip->direction_output = bcma_gpio_direction_output;
@@ -42,6 +42,10 @@
chip->to_irq = bcma_gpio_to_irq;
#endif
- chip->ngpio = 16;
++#if IS_BUILTIN(CONFIG_OF)
++ if (cc->core->bus->hosttype == BCMA_HOSTTYPE_SOC)
++ chip->of_node = cc->core->dev.of_node;
++#endif
+ switch (cc->core->bus->chipinfo.id) {
+ case BCMA_CHIP_ID_BCM5357:
+ case BCMA_CHIP_ID_BCM53572:
@@ -257,7 +261,15 @@
MODULE_DEVICE_TABLE(pci, bcma_pci_bridge_tbl);
--- a/drivers/bcma/main.c
+++ b/drivers/bcma/main.c
-@@ -120,56 +120,78 @@ static void bcma_release_core_dev(struct
+@@ -10,6 +10,7 @@
+ #include <linux/platform_device.h>
+ #include <linux/bcma/bcma.h>
+ #include <linux/slab.h>
++#include <linux/of_address.h>
+
+ MODULE_DESCRIPTION("Broadcom's specific AMBA driver");
+ MODULE_LICENSE("GPL");
+@@ -120,56 +121,121 @@ static void bcma_release_core_dev(struct
kfree(core);
}
@@ -273,6 +285,43 @@
+ return false;
+}
+
++#ifdef CONFIG_OF
++static struct device_node *bcma_of_find_child_device(struct platform_device *parent,
++ struct bcma_device *core)
++{
++ struct device_node *node;
++ u64 size;
++ const __be32 *reg;
++
++ if (!parent || !parent->dev.of_node)
++ return NULL;
++
++ for_each_child_of_node(parent->dev.of_node, node) {
++ reg = of_get_address(node, 0, &size, NULL);
++ if (!reg)
++ continue;
++ if (of_translate_address(node, reg) == core->addr)
++ return node;
++ }
++ return NULL;
++}
++
++static void bcma_of_fill_device(struct platform_device *parent,
++ struct bcma_device *core)
++{
++ struct device_node *node;
++
++ node = bcma_of_find_child_device(parent, core);
++ if (node)
++ core->dev.of_node = node;
++}
++#else
++static void bcma_of_fill_device(struct platform_device *parent,
++ struct bcma_device *core)
++{
++}
++#endif /* CONFIG_OF */
++
+static void bcma_register_core(struct bcma_bus *bus, struct bcma_device *core)
+{
+ int err;
@@ -289,7 +338,13 @@
+ break;
+ case BCMA_HOSTTYPE_SOC:
+ core->dev.dma_mask = &core->dev.coherent_dma_mask;
-+ core->dma_dev = &core->dev;
++ if (bus->host_pdev) {
++ core->dma_dev = &bus->host_pdev->dev;
++ core->dev.parent = &bus->host_pdev->dev;
++ bcma_of_fill_device(bus->host_pdev, core);
++ } else {
++ core->dma_dev = &core->dev;
++ }
+ break;
+ case BCMA_HOSTTYPE_SDIO:
+ break;
@@ -366,7 +421,7 @@
}
#ifdef CONFIG_BCMA_DRIVER_MIPS
-@@ -246,6 +268,12 @@ int bcma_bus_register(struct bcma_bus *b
+@@ -246,6 +312,12 @@ int bcma_bus_register(struct bcma_bus *b
bcma_core_chipcommon_early_init(&bus->drv_cc);
}
@@ -379,7 +434,7 @@
/* Try to get SPROM */
err = bcma_sprom_get(bus);
if (err == -ENOENT) {
-@@ -260,6 +288,13 @@ int bcma_bus_register(struct bcma_bus *b
+@@ -260,6 +332,13 @@ int bcma_bus_register(struct bcma_bus *b
bcma_core_chipcommon_init(&bus->drv_cc);
}
@@ -393,7 +448,7 @@
/* Init MIPS core */
core = bcma_find_core(bus, BCMA_CORE_MIPS_74K);
if (core) {
-@@ -281,6 +316,13 @@ int bcma_bus_register(struct bcma_bus *b
+@@ -281,6 +360,13 @@ int bcma_bus_register(struct bcma_bus *b
bcma_core_pci_init(&bus->drv_pci[1]);
}
@@ -407,7 +462,7 @@
/* Init GBIT MAC COMMON core */
core = bcma_find_core(bus, BCMA_CORE_4706_MAC_GBIT_COMMON);
if (core) {
-@@ -289,7 +331,7 @@ int bcma_bus_register(struct bcma_bus *b
+@@ -289,7 +375,7 @@ int bcma_bus_register(struct bcma_bus *b
}
/* Register found cores */
@@ -416,7 +471,7 @@
bcma_info(bus, "Bus registered\n");
-@@ -307,6 +349,8 @@ void bcma_bus_unregister(struct bcma_bus
+@@ -307,6 +393,8 @@ void bcma_bus_unregister(struct bcma_bus
else if (err)
bcma_err(bus, "Can not unregister GPIO driver: %i\n", err);
@@ -425,7 +480,7 @@
cores[0] = bcma_find_core(bus, BCMA_CORE_MIPS_74K);
cores[1] = bcma_find_core(bus, BCMA_CORE_PCIE);
cores[2] = bcma_find_core(bus, BCMA_CORE_4706_MAC_GBIT_COMMON);
-@@ -326,8 +370,6 @@ int __init bcma_bus_early_register(struc
+@@ -326,8 +414,6 @@ int __init bcma_bus_early_register(struc
struct bcma_device *core;
struct bcma_device_id match;
@@ -434,6 +489,26 @@
match.manuf = BCMA_MANUF_BCM;
match.id = bcma_cc_core_id(bus);
match.class = BCMA_CL_SIM;
+@@ -486,6 +572,11 @@ static int __init bcma_modinit(void)
+ if (err)
+ return err;
+
++ err = bcma_host_soc_register_driver();
++ if (err) {
++ pr_err("SoC host initialization failed\n");
++ err = 0;
++ }
+ #ifdef CONFIG_BCMA_HOST_PCI
+ err = bcma_host_pci_init();
+ if (err) {
+@@ -503,6 +594,7 @@ static void __exit bcma_modexit(void)
+ #ifdef CONFIG_BCMA_HOST_PCI
+ bcma_host_pci_exit();
+ #endif
++ bcma_host_soc_unregister_driver();
+ bus_unregister(&bcma_bus_type);
+ }
+ module_exit(bcma_modexit)
--- a/drivers/bcma/sprom.c
+++ b/drivers/bcma/sprom.c
@@ -201,6 +201,23 @@ static int bcma_sprom_valid(struct bcma_
@@ -558,7 +633,16 @@
u32 wrap;
void __iomem *io_addr;
-@@ -328,11 +332,12 @@ struct bcma_bus {
+@@ -319,6 +323,8 @@ struct bcma_bus {
+ struct pci_dev *host_pci;
+ /* Pointer to the SDIO device (only for BCMA_HOSTTYPE_SDIO) */
+ struct sdio_func *host_sdio;
++ /* Pointer to platform device (only for BCMA_HOSTTYPE_SOC) */
++ struct platform_device *host_pdev;
+ };
+
+ struct bcma_chipinfo chipinfo;
+@@ -328,11 +334,12 @@ struct bcma_bus {
struct bcma_device *mapped_core;
struct list_head cores;
u8 nr_cores;
@@ -857,7 +941,17 @@
eromptr = ioremap_nocache(erombase, BCMA_CORE_SIZE);
--- a/drivers/bcma/host_soc.c
+++ b/drivers/bcma/host_soc.c
-@@ -134,12 +134,16 @@ static void bcma_host_soc_block_write(st
+@@ -7,6 +7,9 @@
+
+ #include "bcma_private.h"
+ #include "scan.h"
++#include <linux/slab.h>
++#include <linux/module.h>
++#include <linux/of_address.h>
+ #include <linux/bcma/bcma.h>
+ #include <linux/bcma/bcma_soc.h>
+
+@@ -134,12 +137,16 @@ static void bcma_host_soc_block_write(st
static u32 bcma_host_soc_aread32(struct bcma_device *core, u16 offset)
{
@@ -874,7 +968,7 @@
writel(value, core->io_wrap + offset);
}
-@@ -161,7 +165,6 @@ static const struct bcma_host_ops bcma_h
+@@ -161,7 +168,6 @@ static const struct bcma_host_ops bcma_h
int __init bcma_host_soc_register(struct bcma_soc *soc)
{
struct bcma_bus *bus = &soc->bus;
@@ -882,9 +976,11 @@
/* iomap only first core. We have to read some register on this core
* to scan the bus.
-@@ -174,7 +177,18 @@ int __init bcma_host_soc_register(struct
+@@ -173,11 +179,100 @@ int __init bcma_host_soc_register(struct
+ /* Host specific */
bus->hosttype = BCMA_HOSTTYPE_SOC;
bus->ops = &bcma_host_soc_ops;
++ bus->host_pdev = NULL;
- /* Register */
+ /* Initialize struct, detect chip */
@@ -902,6 +998,86 @@
err = bcma_bus_early_register(bus, &soc->core_cc, &soc->core_mips);
if (err)
iounmap(bus->mmio);
+
+ return err;
+ }
++
++#ifdef CONFIG_OF
++static int bcma_host_soc_probe(struct platform_device *pdev)
++{
++ struct device *dev = &pdev->dev;
++ struct device_node *np = dev->of_node;
++ struct bcma_bus *bus;
++ int err;
++
++ /* Alloc */
++ bus = devm_kzalloc(dev, sizeof(*bus), GFP_KERNEL);
++ if (!bus)
++ return -ENOMEM;
++
++ /* Map MMIO */
++ bus->mmio = of_iomap(np, 0);
++ if (!bus->mmio)
++ return -ENOMEM;
++
++ /* Host specific */
++ bus->hosttype = BCMA_HOSTTYPE_SOC;
++ bus->ops = &bcma_host_soc_ops;
++ bus->host_pdev = pdev;
++
++ /* Initialize struct, detect chip */
++ bcma_init_bus(bus);
++
++ /* Register */
++ err = bcma_bus_register(bus);
++ if (err)
++ goto err_unmap_mmio;
++
++ platform_set_drvdata(pdev, bus);
++
++ return err;
++
++err_unmap_mmio:
++ iounmap(bus->mmio);
++ return err;
++}
++
++static int bcma_host_soc_remove(struct platform_device *pdev)
++{
++ struct bcma_bus *bus = platform_get_drvdata(pdev);
++
++ bcma_bus_unregister(bus);
++ iounmap(bus->mmio);
++ platform_set_drvdata(pdev, NULL);
++
++ return 0;
++}
++
++static const struct of_device_id bcma_host_soc_of_match[] = {
++ { .compatible = "brcm,bus-axi", },
++ {},
++};
++MODULE_DEVICE_TABLE(of, bcma_host_soc_of_match);
++
++static struct platform_driver bcma_host_soc_driver = {
++ .driver = {
++ .name = "bcma-host-soc",
++ .of_match_table = bcma_host_soc_of_match,
++ },
++ .probe = bcma_host_soc_probe,
++ .remove = bcma_host_soc_remove,
++};
++
++int __init bcma_host_soc_register_driver(void)
++{
++ return platform_driver_register(&bcma_host_soc_driver);
++}
++
++void __exit bcma_host_soc_unregister_driver(void)
++{
++ platform_driver_unregister(&bcma_host_soc_driver);
++}
++#endif /* CONFIG_OF */
--- a/drivers/bcma/driver_mips.c
+++ b/drivers/bcma/driver_mips.c
@@ -21,6 +21,14 @@
@@ -1030,6 +1206,27 @@
/* driver_chipcommon_pmu.c */
u32 bcma_pmu_get_alp_clock(struct bcma_drv_cc *cc);
u32 bcma_pmu_get_cpu_clock(struct bcma_drv_cc *cc);
+@@ -84,6 +88,20 @@ extern int __init bcma_host_pci_init(voi
+ extern void __exit bcma_host_pci_exit(void);
+ #endif /* CONFIG_BCMA_HOST_PCI */
+
++/* host_soc.c */
++#if defined(CONFIG_BCMA_HOST_SOC) && defined(CONFIG_OF)
++extern int __init bcma_host_soc_register_driver(void);
++extern void __exit bcma_host_soc_unregister_driver(void);
++#else
++static inline int __init bcma_host_soc_register_driver(void)
++{
++ return 0;
++}
++static inline void __exit bcma_host_soc_unregister_driver(void)
++{
++}
++#endif /* CONFIG_BCMA_HOST_SOC && CONFIG_OF */
++
+ /* driver_pci.c */
+ u32 bcma_pcie_read(struct bcma_drv_pci *pc, u32 address);
+
--- /dev/null
+++ b/drivers/bcma/driver_chipcommon_b.c
@@ -0,0 +1,61 @@
@@ -1139,3 +1336,38 @@
int bcma_bus_register(struct bcma_bus *bus);
+--- /dev/null
++++ b/Documentation/devicetree/bindings/bus/bcma.txt
+@@ -0,0 +1,32 @@
++Driver for ARM AXI Bus with Broadcom Plugins (bcma)
++
++Required properties:
++
++- compatible : brcm,bus-axi
++
++- reg : iomem address range of chipcommon core
++
++The cores on the AXI bus are automatically detected by bcma with the
++memory ranges they are using and they get registered afterwards.
++
++The top-level axi bus may contain children representing attached cores
++(devices). This is needed since some hardware details can't be auto
++detected (e.g. IRQ numbers). Also some of the cores may be responsible
++for extra things, e.g. ChipCommon providing access to the GPIO chip.
++
++Example:
++
++ axi@18000000 {
++ compatible = "brcm,bus-axi";
++ reg = <0x18000000 0x1000>;
++ ranges = <0x00000000 0x18000000 0x00100000>;
++ #address-cells = <1>;
++ #size-cells = <1>;
++
++ chipcommon {
++ reg = <0x00000000 0x1000>;
++
++ gpio-controller;
++ #gpio-cells = <2>;
++ };
++ };