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-rw-r--r--arch/powerpc/Kconfig3
-rw-r--r--arch/powerpc/Kconfig.debug9
-rw-r--r--arch/powerpc/boot/dts/mpc832x_rdb.dts24
-rw-r--r--arch/powerpc/include/asm/highmem.h2
-rw-r--r--arch/powerpc/include/asm/pci.h4
-rw-r--r--arch/powerpc/include/asm/spinlock.h3
-rw-r--r--arch/powerpc/include/asm/suspend.h3
-rw-r--r--arch/powerpc/kernel/msi.c5
-rw-r--r--arch/powerpc/kernel/process.c2
-rw-r--r--arch/powerpc/kernel/vio.c2
-rw-r--r--arch/powerpc/platforms/83xx/mpc832x_rdb.c123
-rw-r--r--arch/powerpc/sysdev/fsl_soc.c109
-rw-r--r--arch/powerpc/sysdev/fsl_soc.h7
13 files changed, 159 insertions, 137 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index ad6b1c084fe3..45192dce65c4 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -228,6 +228,9 @@ config PPC_OF_PLATFORM_PCI
depends on PPC64 # not supported on 32 bits yet
default n
+config ARCH_SUPPORTS_DEBUG_PAGEALLOC
+ def_bool y
+
source "init/Kconfig"
source "kernel/Kconfig.freezer"
diff --git a/arch/powerpc/Kconfig.debug b/arch/powerpc/Kconfig.debug
index 22091bbfdc9b..a1098e23221f 100644
--- a/arch/powerpc/Kconfig.debug
+++ b/arch/powerpc/Kconfig.debug
@@ -27,15 +27,6 @@ config DEBUG_STACK_USAGE
This option will slow down process creation somewhat.
-config DEBUG_PAGEALLOC
- bool "Debug page memory allocations"
- depends on DEBUG_KERNEL && !HIBERNATION
- help
- Unmap pages from the kernel linear mapping after free_pages().
- This results in a large slowdown, but helps to find certain types
- of memory corruptions.
-
-
config HCALL_STATS
bool "Hypervisor call instrumentation"
depends on PPC_PSERIES && DEBUG_FS
diff --git a/arch/powerpc/boot/dts/mpc832x_rdb.dts b/arch/powerpc/boot/dts/mpc832x_rdb.dts
index dea30910c136..4319bd70a580 100644
--- a/arch/powerpc/boot/dts/mpc832x_rdb.dts
+++ b/arch/powerpc/boot/dts/mpc832x_rdb.dts
@@ -152,10 +152,21 @@
};
par_io@1400 {
+ #address-cells = <1>;
+ #size-cells = <1>;
reg = <0x1400 0x100>;
+ ranges = <3 0x1448 0x18>;
+ compatible = "fsl,mpc8323-qe-pario";
device_type = "par_io";
num-ports = <7>;
+ qe_pio_d: gpio-controller@1448 {
+ #gpio-cells = <2>;
+ compatible = "fsl,mpc8323-qe-pario-bank";
+ reg = <3 0x18>;
+ gpio-controller;
+ };
+
ucc2pio:ucc_pin@02 {
pio-map = <
/* port pin dir open_drain assignment has_irq */
@@ -225,12 +236,25 @@
};
spi@4c0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
cell-index = <0>;
compatible = "fsl,spi";
reg = <0x4c0 0x40>;
interrupts = <2>;
interrupt-parent = <&qeic>;
+ gpios = <&qe_pio_d 13 0>;
mode = "cpu-qe";
+
+ mmc-slot@0 {
+ compatible = "fsl,mpc8323rdb-mmc-slot",
+ "mmc-spi-slot";
+ reg = <0>;
+ gpios = <&qe_pio_d 14 1
+ &qe_pio_d 15 0>;
+ voltage-ranges = <3300 3300>;
+ spi-max-frequency = <50000000>;
+ };
};
spi@500 {
diff --git a/arch/powerpc/include/asm/highmem.h b/arch/powerpc/include/asm/highmem.h
index 545028f86488..684a73f4324f 100644
--- a/arch/powerpc/include/asm/highmem.h
+++ b/arch/powerpc/include/asm/highmem.h
@@ -24,6 +24,7 @@
#include <linux/init.h>
#include <linux/interrupt.h>
+#include <linux/highmem.h>
#include <asm/kmap_types.h>
#include <asm/tlbflush.h>
#include <asm/page.h>
@@ -94,6 +95,7 @@ static inline void *kmap_atomic_prot(struct page *page, enum km_type type, pgpro
if (!PageHighMem(page))
return page_address(page);
+ debug_kmap_atomic(type);
idx = type + KM_TYPE_NR*smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
#ifdef CONFIG_DEBUG_HIGHMEM
diff --git a/arch/powerpc/include/asm/pci.h b/arch/powerpc/include/asm/pci.h
index 3548159a1beb..ba17d5d90a49 100644
--- a/arch/powerpc/include/asm/pci.h
+++ b/arch/powerpc/include/asm/pci.h
@@ -114,6 +114,10 @@ extern int pci_domain_nr(struct pci_bus *bus);
/* Decide whether to display the domain number in /proc */
extern int pci_proc_domain(struct pci_bus *bus);
+/* MSI arch hooks */
+#define arch_setup_msi_irqs arch_setup_msi_irqs
+#define arch_teardown_msi_irqs arch_teardown_msi_irqs
+#define arch_msi_check_device arch_msi_check_device
struct vm_area_struct;
/* Map a range of PCI memory or I/O space for a device into user space */
diff --git a/arch/powerpc/include/asm/spinlock.h b/arch/powerpc/include/asm/spinlock.h
index 36864364e601..c3b193121f81 100644
--- a/arch/powerpc/include/asm/spinlock.h
+++ b/arch/powerpc/include/asm/spinlock.h
@@ -287,6 +287,9 @@ static inline void __raw_write_unlock(raw_rwlock_t *rw)
rw->lock = 0;
}
+#define __raw_read_lock_flags(lock, flags) __raw_read_lock(lock)
+#define __raw_write_lock_flags(lock, flags) __raw_write_lock(lock)
+
#define _raw_spin_relax(lock) __spin_yield(lock)
#define _raw_read_relax(lock) __rw_yield(lock)
#define _raw_write_relax(lock) __rw_yield(lock)
diff --git a/arch/powerpc/include/asm/suspend.h b/arch/powerpc/include/asm/suspend.h
index cbf2c9404c37..c6efc3466aa6 100644
--- a/arch/powerpc/include/asm/suspend.h
+++ b/arch/powerpc/include/asm/suspend.h
@@ -3,7 +3,4 @@
static inline int arch_prepare_suspend(void) { return 0; }
-void save_processor_state(void);
-void restore_processor_state(void);
-
#endif /* __ASM_POWERPC_SUSPEND_H */
diff --git a/arch/powerpc/kernel/msi.c b/arch/powerpc/kernel/msi.c
index 3bb7d3dd28be..8bbc12d20f5c 100644
--- a/arch/powerpc/kernel/msi.c
+++ b/arch/powerpc/kernel/msi.c
@@ -9,6 +9,7 @@
#include <linux/kernel.h>
#include <linux/msi.h>
+#include <linux/pci.h>
#include <asm/machdep.h>
@@ -19,6 +20,10 @@ int arch_msi_check_device(struct pci_dev* dev, int nvec, int type)
return -ENOSYS;
}
+ /* PowerPC doesn't support multiple MSI yet */
+ if (type == PCI_CAP_ID_MSI && nvec > 1)
+ return 1;
+
if (ppc_md.msi_check_device) {
pr_debug("msi: Using platform check routine.\n");
return ppc_md.msi_check_device(dev, nvec, type);
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index eac064948780..7b44a33f03c2 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -598,7 +598,7 @@ void prepare_to_copy(struct task_struct *tsk)
/*
* Copy a thread..
*/
-int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
+int copy_thread(unsigned long clone_flags, unsigned long usp,
unsigned long unused, struct task_struct *p,
struct pt_regs *regs)
{
diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c
index d3694498f3af..819e59f6f7c7 100644
--- a/arch/powerpc/kernel/vio.c
+++ b/arch/powerpc/kernel/vio.c
@@ -482,7 +482,7 @@ static void vio_cmo_balance(struct work_struct *work)
cmo->excess.size = cmo->entitled - cmo->reserve.size;
cmo->excess.free = cmo->excess.size - need;
- cancel_delayed_work(container_of(work, struct delayed_work, work));
+ cancel_delayed_work(to_delayed_work(work));
spin_unlock_irqrestore(&vio_cmo.lock, flags);
}
diff --git a/arch/powerpc/platforms/83xx/mpc832x_rdb.c b/arch/powerpc/platforms/83xx/mpc832x_rdb.c
index 2a1295f19832..567ded7c3b9b 100644
--- a/arch/powerpc/platforms/83xx/mpc832x_rdb.c
+++ b/arch/powerpc/platforms/83xx/mpc832x_rdb.c
@@ -20,6 +20,7 @@
#include <linux/spi/mmc_spi.h>
#include <linux/mmc/host.h>
#include <linux/of_platform.h>
+#include <linux/fsl_devices.h>
#include <asm/time.h>
#include <asm/ipic.h>
@@ -39,16 +40,116 @@
#endif
#ifdef CONFIG_QUICC_ENGINE
-static void mpc83xx_spi_activate_cs(u8 cs, u8 polarity)
+static int __init of_fsl_spi_probe(char *type, char *compatible, u32 sysclk,
+ struct spi_board_info *board_infos,
+ unsigned int num_board_infos,
+ void (*cs_control)(struct spi_device *dev,
+ bool on))
{
- pr_debug("%s %d %d\n", __func__, cs, polarity);
- par_io_data_set(3, 13, polarity);
+ struct device_node *np;
+ unsigned int i = 0;
+
+ for_each_compatible_node(np, type, compatible) {
+ int ret;
+ unsigned int j;
+ const void *prop;
+ struct resource res[2];
+ struct platform_device *pdev;
+ struct fsl_spi_platform_data pdata = {
+ .cs_control = cs_control,
+ };
+
+ memset(res, 0, sizeof(res));
+
+ pdata.sysclk = sysclk;
+
+ prop = of_get_property(np, "reg", NULL);
+ if (!prop)
+ goto err;
+ pdata.bus_num = *(u32 *)prop;
+
+ prop = of_get_property(np, "cell-index", NULL);
+ if (prop)
+ i = *(u32 *)prop;
+
+ prop = of_get_property(np, "mode", NULL);
+ if (prop && !strcmp(prop, "cpu-qe"))
+ pdata.qe_mode = 1;
+
+ for (j = 0; j < num_board_infos; j++) {
+ if (board_infos[j].bus_num == pdata.bus_num)
+ pdata.max_chipselect++;
+ }
+
+ if (!pdata.max_chipselect)
+ continue;
+
+ ret = of_address_to_resource(np, 0, &res[0]);
+ if (ret)
+ goto err;
+
+ ret = of_irq_to_resource(np, 0, &res[1]);
+ if (ret == NO_IRQ)
+ goto err;
+
+ pdev = platform_device_alloc("mpc83xx_spi", i);
+ if (!pdev)
+ goto err;
+
+ ret = platform_device_add_data(pdev, &pdata, sizeof(pdata));
+ if (ret)
+ goto unreg;
+
+ ret = platform_device_add_resources(pdev, res,
+ ARRAY_SIZE(res));
+ if (ret)
+ goto unreg;
+
+ ret = platform_device_add(pdev);
+ if (ret)
+ goto unreg;
+
+ goto next;
+unreg:
+ platform_device_del(pdev);
+err:
+ pr_err("%s: registration failed\n", np->full_name);
+next:
+ i++;
+ }
+
+ return i;
}
-static void mpc83xx_spi_deactivate_cs(u8 cs, u8 polarity)
+static int __init fsl_spi_init(struct spi_board_info *board_infos,
+ unsigned int num_board_infos,
+ void (*cs_control)(struct spi_device *spi,
+ bool on))
{
- pr_debug("%s %d %d\n", __func__, cs, polarity);
- par_io_data_set(3, 13, !polarity);
+ u32 sysclk = -1;
+ int ret;
+
+ /* SPI controller is either clocked from QE or SoC clock */
+ sysclk = get_brgfreq();
+ if (sysclk == -1) {
+ sysclk = fsl_get_sys_freq();
+ if (sysclk == -1)
+ return -ENODEV;
+ }
+
+ ret = of_fsl_spi_probe(NULL, "fsl,spi", sysclk, board_infos,
+ num_board_infos, cs_control);
+ if (!ret)
+ of_fsl_spi_probe("spi", "fsl_spi", sysclk, board_infos,
+ num_board_infos, cs_control);
+
+ return spi_register_board_info(board_infos, num_board_infos);
+}
+
+static void mpc83xx_spi_cs_control(struct spi_device *spi, bool on)
+{
+ pr_debug("%s %d %d\n", __func__, spi->chip_select, on);
+ par_io_data_set(3, 13, on);
}
static struct mmc_spi_platform_data mpc832x_mmc_pdata = {
@@ -74,9 +175,13 @@ static int __init mpc832x_spi_init(void)
par_io_config_pin(3, 14, 2, 0, 0, 0); /* SD_INSERT, I */
par_io_config_pin(3, 15, 2, 0, 0, 0); /* SD_PROTECT,I */
- return fsl_spi_init(&mpc832x_spi_boardinfo, 1,
- mpc83xx_spi_activate_cs,
- mpc83xx_spi_deactivate_cs);
+ /*
+ * Don't bother with legacy stuff when device tree contains
+ * mmc-spi-slot node.
+ */
+ if (of_find_compatible_node(NULL, NULL, "mmc-spi-slot"))
+ return 0;
+ return fsl_spi_init(&mpc832x_spi_boardinfo, 1, mpc83xx_spi_cs_control);
}
machine_device_initcall(mpc832x_rdb, mpc832x_spi_init);
#endif /* CONFIG_QUICC_ENGINE */
diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c
index a01c89d3f9bd..afe8dbc964aa 100644
--- a/arch/powerpc/sysdev/fsl_soc.c
+++ b/arch/powerpc/sysdev/fsl_soc.c
@@ -417,115 +417,6 @@ err:
arch_initcall(fsl_usb_of_init);
-static int __init of_fsl_spi_probe(char *type, char *compatible, u32 sysclk,
- struct spi_board_info *board_infos,
- unsigned int num_board_infos,
- void (*activate_cs)(u8 cs, u8 polarity),
- void (*deactivate_cs)(u8 cs, u8 polarity))
-{
- struct device_node *np;
- unsigned int i = 0;
-
- for_each_compatible_node(np, type, compatible) {
- int ret;
- unsigned int j;
- const void *prop;
- struct resource res[2];
- struct platform_device *pdev;
- struct fsl_spi_platform_data pdata = {
- .activate_cs = activate_cs,
- .deactivate_cs = deactivate_cs,
- };
-
- memset(res, 0, sizeof(res));
-
- pdata.sysclk = sysclk;
-
- prop = of_get_property(np, "reg", NULL);
- if (!prop)
- goto err;
- pdata.bus_num = *(u32 *)prop;
-
- prop = of_get_property(np, "cell-index", NULL);
- if (prop)
- i = *(u32 *)prop;
-
- prop = of_get_property(np, "mode", NULL);
- if (prop && !strcmp(prop, "cpu-qe"))
- pdata.qe_mode = 1;
-
- for (j = 0; j < num_board_infos; j++) {
- if (board_infos[j].bus_num == pdata.bus_num)
- pdata.max_chipselect++;
- }
-
- if (!pdata.max_chipselect)
- continue;
-
- ret = of_address_to_resource(np, 0, &res[0]);
- if (ret)
- goto err;
-
- ret = of_irq_to_resource(np, 0, &res[1]);
- if (ret == NO_IRQ)
- goto err;
-
- pdev = platform_device_alloc("mpc83xx_spi", i);
- if (!pdev)
- goto err;
-
- ret = platform_device_add_data(pdev, &pdata, sizeof(pdata));
- if (ret)
- goto unreg;
-
- ret = platform_device_add_resources(pdev, res,
- ARRAY_SIZE(res));
- if (ret)
- goto unreg;
-
- ret = platform_device_add(pdev);
- if (ret)
- goto unreg;
-
- goto next;
-unreg:
- platform_device_del(pdev);
-err:
- pr_err("%s: registration failed\n", np->full_name);
-next:
- i++;
- }
-
- return i;
-}
-
-int __init fsl_spi_init(struct spi_board_info *board_infos,
- unsigned int num_board_infos,
- void (*activate_cs)(u8 cs, u8 polarity),
- void (*deactivate_cs)(u8 cs, u8 polarity))
-{
- u32 sysclk = -1;
- int ret;
-
-#ifdef CONFIG_QUICC_ENGINE
- /* SPI controller is either clocked from QE or SoC clock */
- sysclk = get_brgfreq();
-#endif
- if (sysclk == -1) {
- sysclk = fsl_get_sys_freq();
- if (sysclk == -1)
- return -ENODEV;
- }
-
- ret = of_fsl_spi_probe(NULL, "fsl,spi", sysclk, board_infos,
- num_board_infos, activate_cs, deactivate_cs);
- if (!ret)
- of_fsl_spi_probe("spi", "fsl_spi", sysclk, board_infos,
- num_board_infos, activate_cs, deactivate_cs);
-
- return spi_register_board_info(board_infos, num_board_infos);
-}
-
#if defined(CONFIG_PPC_85xx) || defined(CONFIG_PPC_86xx)
static __be32 __iomem *rstcr;
diff --git a/arch/powerpc/sysdev/fsl_soc.h b/arch/powerpc/sysdev/fsl_soc.h
index 9c744e4285a0..42381bb6cd51 100644
--- a/arch/powerpc/sysdev/fsl_soc.h
+++ b/arch/powerpc/sysdev/fsl_soc.h
@@ -4,6 +4,8 @@
#include <asm/mmu.h>
+struct spi_device;
+
extern phys_addr_t get_immrbase(void);
#if defined(CONFIG_CPM2) || defined(CONFIG_QUICC_ENGINE) || defined(CONFIG_8xx)
extern u32 get_brgfreq(void);
@@ -17,11 +19,6 @@ extern u32 fsl_get_sys_freq(void);
struct spi_board_info;
struct device_node;
-extern int fsl_spi_init(struct spi_board_info *board_infos,
- unsigned int num_board_infos,
- void (*activate_cs)(u8 cs, u8 polarity),
- void (*deactivate_cs)(u8 cs, u8 polarity));
-
extern void fsl_rstcr_restart(char *cmd);
#if defined(CONFIG_FB_FSL_DIU) || defined(CONFIG_FB_FSL_DIU_MODULE)
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.