diff options
| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2013-04-01 21:20:02 -0700 |
|---|---|---|
| committer | Simon Horman <horms+renesas@verge.net.au> | 2013-04-05 11:32:53 +0900 |
| commit | 27d5f27e253431c98f00c34a02bb7a2ece0b3fe9 (patch) | |
| tree | 914b26ed47e5c4e33f1638350e7a4c9d53ce4cdc /arch/arm/mach-shmobile | |
| parent | 5e3780ba6dded2636c939549e3bea16d736859fb (diff) | |
| download | linux-27d5f27e253431c98f00c34a02bb7a2ece0b3fe9.tar.bz2 | |
ARM: shmobile: bockw: add SMSC ethernet support
This patch adds SMSC ethernet support on Bock-W
Bock-W SMSC needs FPGA settings which enables interrupt.
This patch does it on bockw_init() function.
As notes for future, this FPGA settings should be updated,
since this FPGA is using cascaded interrupt.
Current code is assuming that this FPGA interrupt user is only SMSC.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Diffstat (limited to 'arch/arm/mach-shmobile')
| -rw-r--r-- | arch/arm/mach-shmobile/Kconfig | 1 | ||||
| -rw-r--r-- | arch/arm/mach-shmobile/board-bockw.c | 38 |
2 files changed, 39 insertions, 0 deletions
diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig index 549e05985745..1a517e2fe449 100644 --- a/arch/arm/mach-shmobile/Kconfig +++ b/arch/arm/mach-shmobile/Kconfig @@ -133,6 +133,7 @@ config MACH_BOCKW bool "BOCK-W platform" depends on ARCH_R8A7778 select ARCH_REQUIRE_GPIOLIB + select RENESAS_INTC_IRQPIN select USE_OF config MACH_MARZEN diff --git a/arch/arm/mach-shmobile/board-bockw.c b/arch/arm/mach-shmobile/board-bockw.c index 56ab56ed5f59..38e5e50fb318 100644 --- a/arch/arm/mach-shmobile/board-bockw.c +++ b/arch/arm/mach-shmobile/board-bockw.c @@ -19,14 +19,52 @@ */ #include <linux/platform_device.h> +#include <linux/smsc911x.h> #include <mach/common.h> +#include <mach/irqs.h> #include <mach/r8a7778.h> #include <asm/mach/arch.h> +static struct smsc911x_platform_config smsc911x_data = { + .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW, + .irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL, + .flags = SMSC911X_USE_32BIT, + .phy_interface = PHY_INTERFACE_MODE_MII, +}; + +static struct resource smsc911x_resources[] = { + DEFINE_RES_MEM(0x18300000, 0x1000), + DEFINE_RES_IRQ(irq_pin(0)), /* IRQ 0 */ +}; + +#define IRQ0MR 0x30 static void __init bockw_init(void) { + void __iomem *fpga; + r8a7778_clock_init(); + r8a7778_init_irq_extpin(1); r8a7778_add_standard_devices(); + + fpga = ioremap_nocache(0x18200000, SZ_1M); + if (fpga) { + /* + * CAUTION + * + * IRQ0/1 is cascaded interrupt from FPGA. + * it should be cared in the future + * Now, it is assuming IRQ0 was used only from SMSC. + */ + u16 val = ioread16(fpga + IRQ0MR); + val &= ~(1 << 4); /* enable SMSC911x */ + iowrite16(val, fpga + IRQ0MR); + iounmap(fpga); + + platform_device_register_resndata( + &platform_bus, "smsc911x", -1, + smsc911x_resources, ARRAY_SIZE(smsc911x_resources), + &smsc911x_data, sizeof(smsc911x_data)); + } } static const char *bockw_boards_compat_dt[] __initdata = { |