[PATCH v4 21/39] ARM: OMAP2+: board apollon: gpmc driver adaptation
Afzal Mohammed
afzal at ti.com
Tue May 1 08:22:02 EDT 2012
gpmc code has been converted to driver. Modify the board code to
provide gpmc driver with required information. It is believed that
apollon board was added before gpmc-smc91x helper functions were
added. Reuse the now available gpmc_smc91x_init adapted for gpmc
driver.
Note: Timing values were hardcoded and written onto registers,
whether making use of gpmc_smc91x_init would configure timing
properly has to be tested.
Signed-off-by: Afzal Mohammed <afzal at ti.com>
---
arch/arm/mach-omap2/board-apollon.c | 152 +++++++++--------------------------
1 file changed, 38 insertions(+), 114 deletions(-)
diff --git a/arch/arm/mach-omap2/board-apollon.c b/arch/arm/mach-omap2/board-apollon.c
index 768ece2..6a402e1 100644
--- a/arch/arm/mach-omap2/board-apollon.c
+++ b/arch/arm/mach-omap2/board-apollon.c
@@ -39,6 +39,7 @@
#include <plat/board.h>
#include "common.h"
#include <plat/gpmc.h>
+#include <plat/gpmc-smc91x.h>
#include <video/omapdss.h>
#include <video/omap-panel-generic-dpi.h>
@@ -58,6 +59,12 @@
#define APOLLON_ETH_CS 1
#define APOLLON_ETHR_GPIO_IRQ 74
+static struct gpmc_device_pdata *gpmc_device_data[2];
+
+static struct gpmc_pdata gpmc_data = {
+ .device_pdata = gpmc_device_data,
+};
+
static struct mtd_partition apollon_partitions[] = {
{
.name = "X-Loader + U-Boot",
@@ -97,57 +104,26 @@ static struct onenand_platform_data apollon_flash_data = {
.nr_parts = ARRAY_SIZE(apollon_partitions),
};
-static struct resource apollon_flash_resource[] = {
- [0] = {
- .flags = IORESOURCE_MEM,
- },
+static struct gpmc_cs_data apollon_gpmc_onenand_cs_data = {
+ .cs = APOLLON_FLASH_CS,
+ .mem_size = SZ_128K,
};
-static struct platform_device apollon_onenand_device = {
+static struct gpmc_device_pdata apollon_gpmc_onenand_data = {
.name = "onenand-flash",
.id = -1,
- .dev = {
- .platform_data = &apollon_flash_data,
- },
- .num_resources = ARRAY_SIZE(apollon_flash_resource),
- .resource = apollon_flash_resource,
-};
-
-static void __init apollon_flash_init(void)
-{
- unsigned long base;
-
- if (gpmc_cs_request(APOLLON_FLASH_CS, SZ_128K, &base) < 0) {
- printk(KERN_ERR "Cannot request OneNAND GPMC CS\n");
- return;
- }
- apollon_flash_resource[0].start = base;
- apollon_flash_resource[0].end = base + SZ_128K - 1;
-}
-
-static struct smc91x_platdata appolon_smc91x_info = {
- .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
- .leda = RPC_LED_100_10,
- .ledb = RPC_LED_TX_RX,
+ .pdata = &apollon_flash_data,
+ .pdata_size = sizeof(apollon_flash_data),
+ .cs_data = &apollon_gpmc_onenand_cs_data,
+ .num_cs = 1,
};
-static struct resource apollon_smc91x_resources[] = {
- [0] = {
- .flags = IORESOURCE_MEM,
- },
- [1] = {
- .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
- },
-};
-
-static struct platform_device apollon_smc91x_device = {
- .name = "smc91x",
- .id = -1,
- .dev = {
- .platform_data = &appolon_smc91x_info,
- },
- .num_resources = ARRAY_SIZE(apollon_smc91x_resources),
- .resource = apollon_smc91x_resources,
+static struct omap_smc91x_platform_data apollon_smc91x_data = {
+ .gpio_irq = APOLLON_ETHR_GPIO_IRQ,
+ .cs = APOLLON_ETH_CS,
+ .wait_pin = GPMC_WAITPIN_1,
+ .flags = GPMC_TIMINGS_SMC91C96 | IORESOURCE_IRQ_HIGHEDGE |
+ GPMC_MUXADDDATA,
};
static struct omap_led_config apollon_led_config[] = {
@@ -185,74 +161,9 @@ static struct platform_device apollon_led_device = {
};
static struct platform_device *apollon_devices[] __initdata = {
- &apollon_onenand_device,
- &apollon_smc91x_device,
&apollon_led_device,
};
-static inline void __init apollon_init_smc91x(void)
-{
- unsigned long base;
-
- unsigned int rate;
- struct clk *gpmc_fck;
- int eth_cs;
- int err;
-
- 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);
-
- eth_cs = APOLLON_ETH_CS;
-
- /* Make sure CS1 timings are correct */
- 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(APOLLON_ETH_CS, SZ_16M, &base) < 0) {
- printk(KERN_ERR "Failed to request GPMC CS for smc91x\n");
- goto out;
- }
- apollon_smc91x_resources[0].start = base + 0x300;
- apollon_smc91x_resources[0].end = base + 0x30f;
- udelay(100);
-
- omap_mux_init_gpio(APOLLON_ETHR_GPIO_IRQ, 0);
- err = gpio_request_one(APOLLON_ETHR_GPIO_IRQ, GPIOF_IN, "SMC91x irq");
- if (err) {
- printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n",
- APOLLON_ETHR_GPIO_IRQ);
- gpmc_cs_free(APOLLON_ETH_CS);
- }
-out:
- clk_disable(gpmc_fck);
- clk_put(gpmc_fck);
-}
-
static struct omap_usb_config apollon_usb_config __initdata = {
.register_dev = 1,
.hmc_mode = 0x14, /* 0:dev 1:host1 2:disable */
@@ -315,12 +226,27 @@ static struct omap_board_mux board_mux[] __initdata = {
static void __init omap_apollon_init(void)
{
u32 v;
+ int err, idx = 0;
omap2420_mux_init(board_mux, OMAP_PACKAGE_ZAC);
- apollon_init_smc91x();
+ gpmc_device_data[idx++] = &apollon_gpmc_onenand_data;
+ gpmc_data.num_device++;
+
+ omap_mux_init_gpio(apollon_smc91x_data.gpio_irq, 0);
+ err = gpio_request_one(apollon_smc91x_data.gpio_irq,
+ GPIOF_IN, "SMC91x irq");
+ if (err) {
+ pr_err("error: %s: Failed to request GPIO%d for smc91x IRQ\n",
+ __func__, apollon_smc91x_data.gpio_irq);
+ } else {
+ gpmc_device_data[idx++] =
+ gpmc_smc91x_init(&apollon_smc91x_data);
+ gpmc_data.num_device++;
+ }
+ omap_init_gpmc(&gpmc_data);
+
apollon_led_init();
- apollon_flash_init();
apollon_usb_init();
/* REVISIT: where's the correct place */
@@ -339,8 +265,6 @@ static void __init omap_apollon_init(void)
* You have to mux them off in device drivers later on
* if not needed.
*/
- apollon_smc91x_resources[1].start = gpio_to_irq(APOLLON_ETHR_GPIO_IRQ);
- apollon_smc91x_resources[1].end = gpio_to_irq(APOLLON_ETHR_GPIO_IRQ);
platform_add_devices(apollon_devices, ARRAY_SIZE(apollon_devices));
omap_serial_init();
omap_sdrc_init(NULL, NULL);
--
1.7.10
More information about the linux-arm-kernel
mailing list