ARM: OMAP2/3: Add generic smc91x support when connected to GPMC
Convert the board-rx51 smc91x code to be generic and make
the boards to use it. This allows future recalculation of the
timings when the source clock gets scaled.
Also correct the rx51 interrupt to be IORESOURCE_IRQ_HIGHLEVEL.
Thanks to Paul Walmsley <paul@pwsan.com> for better GPMC timing
calculations.
Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/mach-omap2/board-2430sdp.c b/arch/arm/mach-omap2/board-2430sdp.c
index 2214365..ef70b79 100644
--- a/arch/arm/mach-omap2/board-2430sdp.c
+++ b/arch/arm/mach-omap2/board-2430sdp.c
@@ -36,14 +36,11 @@
#include <mach/common.h>
#include <mach/gpmc.h>
#include <mach/usb.h>
+#include <mach/gpmc-smc91x.h>
#include "mmc-twl4030.h"
#define SDP2430_CS0_BASE 0x04000000
-#define SDP2430_FLASH_CS 0
-#define SDP2430_SMC91X_CS 5
-
-#define SDP2430_ETHR_GPIO_IRQ 149
static struct mtd_partition sdp2430_partitions[] = {
/* bootloader (U-Boot, etc) in first sector */
@@ -99,100 +96,43 @@
.resource = &sdp2430_flash_resource,
};
-static struct resource sdp2430_smc91x_resources[] = {
- [0] = {
- .start = SDP2430_CS0_BASE,
- .end = SDP2430_CS0_BASE + SZ_64M - 1,
- .flags = IORESOURCE_MEM,
- },
- [1] = {
- .start = OMAP_GPIO_IRQ(SDP2430_ETHR_GPIO_IRQ),
- .end = OMAP_GPIO_IRQ(SDP2430_ETHR_GPIO_IRQ),
- .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
- },
-};
-
-static struct platform_device sdp2430_smc91x_device = {
- .name = "smc91x",
- .id = -1,
- .num_resources = ARRAY_SIZE(sdp2430_smc91x_resources),
- .resource = sdp2430_smc91x_resources,
-};
-
static struct platform_device *sdp2430_devices[] __initdata = {
- &sdp2430_smc91x_device,
&sdp2430_flash_device,
};
-static inline void __init sdp2430_init_smc91x(void)
+#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91x_MODULE)
+
+static struct omap_smc91x_platform_data board_smc91x_data = {
+ .cs = 5,
+ .gpio_irq = 149,
+ .flags = GPMC_MUX_ADD_DATA | GPMC_TIMINGS_SMC91C96 |
+ IORESOURCE_IRQ_LOWLEVEL,
+
+};
+
+static void __init board_smc91x_init(void)
{
- int eth_cs;
- unsigned long cs_mem_base;
- unsigned int rate;
- struct clk *gpmc_fck;
+ if (omap_rev() > OMAP3430_REV_ES1_0)
+ board_smc91x_data.gpio_irq = 6;
+ else
+ board_smc91x_data.gpio_irq = 29;
- eth_cs = SDP2430_SMC91X_CS;
-
- gpmc_fck = clk_get(NULL, "gpmc_fck"); /* Always on ENABLE_ON_INIT */
- if (IS_ERR(gpmc_fck)) {
- WARN_ON(1);
- return;
- }
-
- clk_enable(gpmc_fck);
- rate = clk_get_rate(gpmc_fck);
-
- /* Make sure CS1 timings are correct, for 2430 always muxed */
- gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1, 0x00011200);
-
- if (rate >= 160000000) {
- gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01);
- gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803);
- gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a);
- gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
- gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
- } else if (rate >= 130000000) {
- gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
- gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
- gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
- gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
- gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
- } else { /* rate = 100000000 */
- gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
- gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
- gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
- gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F);
- gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2);
- }
-
- if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
- printk(KERN_ERR "Failed to request GPMC mem for smc91x\n");
- goto out;
- }
-
- sdp2430_smc91x_resources[0].start = cs_mem_base + 0x300;
- sdp2430_smc91x_resources[0].end = cs_mem_base + 0x30f;
- udelay(100);
-
- if (gpio_request(SDP2430_ETHR_GPIO_IRQ, "SMC91x irq") < 0) {
- printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n",
- SDP2430_ETHR_GPIO_IRQ);
- gpmc_cs_free(eth_cs);
- goto out;
- }
- gpio_direction_input(SDP2430_ETHR_GPIO_IRQ);
-
-out:
- clk_disable(gpmc_fck);
- clk_put(gpmc_fck);
+ gpmc_smc91x_init(&board_smc91x_data);
}
+#else
+
+static inline void board_smc91x_init(void)
+{
+}
+
+#endif
+
static void __init omap_2430sdp_init_irq(void)
{
omap2_init_common_hw(NULL);
omap_init_irq();
omap_gpio_init();
- sdp2430_init_smc91x();
}
static struct omap_uart_config sdp2430_uart_config __initdata = {
@@ -256,6 +196,7 @@
omap_serial_init();
twl4030_mmc_init(mmc);
usb_musb_init();
+ board_smc91x_init();
}
static void __init omap_2430sdp_map_io(void)