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authorMagnus Damm <damm@igel.co.jp>2009-04-28 04:02:13 -0400
committerPaul Mundt <lethal@linux-sh.org>2009-06-15 16:57:07 -0400
commit724cfb944007b7f8d346523a7810b53a35921bc5 (patch)
treeaac8b1cc6e560a5beb81ae46a41aea83d241f0a6 /arch/sh
parent03347e2592078a90df818670fddf97a33eec70fb (diff)
sh: smsc911x support for the rsk7203 board
This patch adds support for the LAN9118 ethernet on rsk7203. The LAN9118 controller is hooked up using a 16-bit data bus, but the rsk7203 board does not swap the byte lanes as needed between the sh7203 processor and the the ethernet controller. In the processor the CS memory window is configured in 16-bit mode but the smsc911x driver is told to do 32-bit accesses to improve performance. The SMSC911X_SWAP_FIFO flag is used to tell the driver to do software byte swapping of fifo data. Signed-off-by: Magnus Damm <damm@igel.co.jp> Acked-by: Steve Glendinning <steve.glendinning@smsc.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh')
-rw-r--r--arch/sh/boards/mach-rsk/devices-rsk7203.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/sh/boards/mach-rsk/devices-rsk7203.c b/arch/sh/boards/mach-rsk/devices-rsk7203.c
index d8a65ea91665..4af3a771c058 100644
--- a/arch/sh/boards/mach-rsk/devices-rsk7203.c
+++ b/arch/sh/boards/mach-rsk/devices-rsk7203.c
@@ -26,13 +26,13 @@ static struct smsc911x_platform_config smsc911x_config = {
26 .phy_interface = PHY_INTERFACE_MODE_MII, 26 .phy_interface = PHY_INTERFACE_MODE_MII,
27 .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW, 27 .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
28 .irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN, 28 .irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
29 .flags = SMSC911X_USE_16BIT, 29 .flags = SMSC911X_USE_32BIT | SMSC911X_SWAP_FIFO,
30}; 30};
31 31
32static struct resource smsc911x_resources[] = { 32static struct resource smsc911x_resources[] = {
33 [0] = { 33 [0] = {
34 .start = 0x24000000, 34 .start = 0x24000000,
35 .end = 0x24000000 + 0x100, 35 .end = 0x240000ff,
36 .flags = IORESOURCE_MEM, 36 .flags = IORESOURCE_MEM,
37 }, 37 },
38 [1] = { 38 [1] = {
@@ -99,6 +99,10 @@ static int __init rsk7203_devices_setup(void)
99 gpio_request(GPIO_FN_TXD0, NULL); 99 gpio_request(GPIO_FN_TXD0, NULL);
100 gpio_request(GPIO_FN_RXD0, NULL); 100 gpio_request(GPIO_FN_RXD0, NULL);
101 101
102 /* Setup LAN9118: CS1 in 16-bit Big Endian Mode, IRQ0 at Port B */
103 ctrl_outl(0x36db0400, 0xfffc0008); /* CS1BCR */
104 gpio_request(GPIO_FN_IRQ0_PB, NULL);
105
102 return platform_add_devices(rsk7203_devices, 106 return platform_add_devices(rsk7203_devices,
103 ARRAY_SIZE(rsk7203_devices)); 107 ARRAY_SIZE(rsk7203_devices));
104} 108}