[ARM] 3966/1: AT91: RM9200 device data update

This patch contains various updates the at91rm9200_devices.c file:
      * Consistent naming of resources and platform_devices.
      * PCMCIA/Compact Flash: Configuration of the memory controller
        moved out of the driver and into this file.
      * MMC: Enable the VCC pin (if one is configured)
      * MMC: Enable the internal pullups on the I/O pins.
      * NAND: Configuration of the memory controller moved out of the
        driver and into this file.
      * Added TWI/I2C resources.
      * The names of some of the CONFIG_ variables were changed.

Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 110 insertions, 48 deletions

diff --git a/arch/arm/mach-at91rm9200/at91rm9200_devices.c b/arch/arm/mach-at91rm9200/at91rm9200_devices.c
index 2b3a23605bf3..4641b99db0ee 100644
--- a/arch/arm/mach-at91rm9200/at91rm9200_devices.c
+++ b/arch/arm/mach-at91rm9200/at91rm9200_devices.c
@@ -15,9 +15,10 @@
 
 #include <linux/platform_device.h>
 
-#include <asm/hardware.h>
 #include <asm/arch/board.h>
 #include <asm/arch/gpio.h>
+#include <asm/arch/at91rm9200.h>
+#include <asm/arch/at91rm9200_mc.h>
 
 #include "generic.h"
 
@@ -33,7 +34,7 @@
 static u64 ohci_dmamask = 0xffffffffUL;
 static struct at91_usbh_data usbh_data;
 
-static struct resource at91_usbh_resources[] = {
+static struct resource usbh_resources[] = {
         [0] = {
                 .start  = AT91RM9200_UHP_BASE,
                 .end    = AT91RM9200_UHP_BASE + SZ_1M - 1,
@@ -54,8 +55,8 @@ static struct platform_device at91rm9200_usbh_device = {
                                 .coherent_dma_mask      = 0xffffffff,
                                 .platform_data          = &usbh_data,
         },
-        .resource       = at91_usbh_resources,
-        .num_resources  = ARRAY_SIZE(at91_usbh_resources),
+        .resource       = usbh_resources,
+        .num_resources  = ARRAY_SIZE(usbh_resources),
 };
 
 void __init at91_add_device_usbh(struct at91_usbh_data *data)
@@ -78,7 +79,7 @@ void __init at91_add_device_usbh(struct at91_usbh_data *data) {}
 #ifdef CONFIG_USB_GADGET_AT91
 static struct at91_udc_data udc_data;
 
-static struct resource at91_udc_resources[] = {
+static struct resource udc_resources[] = {
         [0] = {
                 .start  = AT91RM9200_BASE_UDP,
                 .end    = AT91RM9200_BASE_UDP + SZ_16K - 1,
@@ -97,8 +98,8 @@ static struct platform_device at91rm9200_udc_device = {
         .dev            = {
                                 .platform_data          = &udc_data,
         },
-        .resource       = at91_udc_resources,
-        .num_resources  = ARRAY_SIZE(at91_udc_resources),
+        .resource       = udc_resources,
+        .num_resources  = ARRAY_SIZE(udc_resources),
 };
 
 void __init at91_add_device_udc(struct at91_udc_data *data)
@@ -129,7 +130,7 @@ void __init at91_add_device_udc(struct at91_udc_data *data) {}
 static u64 eth_dmamask = 0xffffffffUL;
 static struct at91_eth_data eth_data;
 
-static struct resource at91_eth_resources[] = {
+static struct resource eth_resources[] = {
         [0] = {
                 .start  = AT91_VA_BASE_EMAC,
                 .end    = AT91_VA_BASE_EMAC + SZ_16K - 1,
@@ -150,8 +151,8 @@ static struct platform_device at91rm9200_eth_device = {
                                 .coherent_dma_mask      = 0xffffffff,
                                 .platform_data          = &eth_data,
         },
-        .resource       = at91_eth_resources,
-        .num_resources  = ARRAY_SIZE(at91_eth_resources),
+        .resource       = eth_resources,
+        .num_resources  = ARRAY_SIZE(eth_resources),
 };
 
 void __init at91_add_device_eth(struct at91_eth_data *data)
@@ -202,11 +203,13 @@ void __init at91_add_device_eth(struct at91_eth_data *data) {}
 #if defined(CONFIG_AT91_CF) || defined(CONFIG_AT91_CF_MODULE)
 static struct at91_cf_data cf_data;
 
-static struct resource at91_cf_resources[] = {
+#define CF_BASE         AT91_CHIPSELECT_4
+
+static struct resource cf_resources[] = {
         [0] = {
-                .start  = AT91_CF_BASE,
+                .start  = CF_BASE,
                 /* ties up CS4, CS5 and CS6 */
-                .end    = AT91_CF_BASE + (0x30000000 - 1),
+                .end    = CF_BASE + (0x30000000 - 1),
                 .flags  = IORESOURCE_MEM | IORESOURCE_MEM_8AND16BIT,
         },
 };
@@ -217,15 +220,38 @@ static struct platform_device at91rm9200_cf_device = {
         .dev            = {
                                 .platform_data          = &cf_data,
         },
-        .resource       = at91_cf_resources,
-        .num_resources  = ARRAY_SIZE(at91_cf_resources),
+        .resource       = cf_resources,
+        .num_resources  = ARRAY_SIZE(cf_resources),
 };
 
 void __init at91_add_device_cf(struct at91_cf_data *data)
 {
+        unsigned int csa;
+
         if (!data)
                 return;
 
+        data->chipselect = 4;           /* can only use EBI ChipSelect 4 */
+
+        /* CF takes over CS4, CS5, CS6 */
+        csa = at91_sys_read(AT91_EBI_CSA);
+        at91_sys_write(AT91_EBI_CSA, csa | AT91_EBI_CS4A_SMC_COMPACTFLASH);
+
+        /*
+         * Static memory controller timing adjustments.
+         * REVISIT:  these timings are in terms of MCK cycles, so
+         * when MCK changes (cpufreq etc) so must these values...
+         */
+        at91_sys_write(AT91_SMC_CSR(4),
+                                  AT91_SMC_ACSS_STD
+                                | AT91_SMC_DBW_16
+                                | AT91_SMC_BAT
+                                | AT91_SMC_WSEN
+                                | AT91_SMC_NWS_(32)     /* wait states */
+                                | AT91_SMC_RWSETUP_(6)  /* setup time */
+                                | AT91_SMC_RWHOLD_(4)   /* hold time */
+        );
+
         /* input/irq */
         if (data->irq_pin) {
                 at91_set_gpio_input(data->irq_pin, 1);
@@ -245,6 +271,9 @@ void __init at91_add_device_cf(struct at91_cf_data *data)
         at91_set_A_periph(AT91_PIN_PC11, 0);    /* NCS5/CFCE1 */
         at91_set_A_periph(AT91_PIN_PC12, 0);    /* NCS6/CFCE2 */
 
+        /* nWAIT is _not_ a default setting */
+        at91_set_A_periph(AT91_PIN_PC6, 1);     /*  nWAIT */
+
         cf_data = *data;
         platform_device_register(&at91rm9200_cf_device);
 }
@@ -257,11 +286,11 @@ void __init at91_add_device_cf(struct at91_cf_data *data) {}
  *  MMC / SD
  * -------------------------------------------------------------------- */
 
-#if defined(CONFIG_MMC_AT91RM9200) || defined(CONFIG_MMC_AT91RM9200_MODULE)
+#if defined(CONFIG_MMC_AT91) || defined(CONFIG_MMC_AT91_MODULE)
 static u64 mmc_dmamask = 0xffffffffUL;
 static struct at91_mmc_data mmc_data;
 
-static struct resource at91_mmc_resources[] = {
+static struct resource mmc_resources[] = {
         [0] = {
                 .start  = AT91RM9200_BASE_MCI,
                 .end    = AT91RM9200_BASE_MCI + SZ_16K - 1,
@@ -282,8 +311,8 @@ static struct platform_device at91rm9200_mmc_device = {
                                 .coherent_dma_mask      = 0xffffffff,
                                 .platform_data          = &mmc_data,
         },
-        .resource       = at91_mmc_resources,
-        .num_resources  = ARRAY_SIZE(at91_mmc_resources),
+        .resource       = mmc_resources,
+        .num_resources  = ARRAY_SIZE(mmc_resources),
 };
 
 void __init at91_add_device_mmc(struct at91_mmc_data *data)
@@ -298,31 +327,33 @@ void __init at91_add_device_mmc(struct at91_mmc_data *data)
         }
         if (data->wp_pin)
                 at91_set_gpio_input(data->wp_pin, 1);
+        if (data->vcc_pin)
+                at91_set_gpio_output(data->vcc_pin, 0);
 
         /* CLK */
         at91_set_A_periph(AT91_PIN_PA27, 0);
 
-        if (data->is_b) {
+        if (data->slot_b) {
                 /* CMD */
-                at91_set_B_periph(AT91_PIN_PA8, 0);
+                at91_set_B_periph(AT91_PIN_PA8, 1);
 
                 /* DAT0, maybe DAT1..DAT3 */
-                at91_set_B_periph(AT91_PIN_PA9, 0);
+                at91_set_B_periph(AT91_PIN_PA9, 1);
                 if (data->wire4) {
-                        at91_set_B_periph(AT91_PIN_PA10, 0);
-                        at91_set_B_periph(AT91_PIN_PA11, 0);
-                        at91_set_B_periph(AT91_PIN_PA12, 0);
+                        at91_set_B_periph(AT91_PIN_PA10, 1);
+                        at91_set_B_periph(AT91_PIN_PA11, 1);
+                        at91_set_B_periph(AT91_PIN_PA12, 1);
                 }
         } else {
                 /* CMD */
-                at91_set_A_periph(AT91_PIN_PA28, 0);
+                at91_set_A_periph(AT91_PIN_PA28, 1);
 
                 /* DAT0, maybe DAT1..DAT3 */
-                at91_set_A_periph(AT91_PIN_PA29, 0);
+                at91_set_A_periph(AT91_PIN_PA29, 1);
                 if (data->wire4) {
-                        at91_set_B_periph(AT91_PIN_PB3, 0);
-                        at91_set_B_periph(AT91_PIN_PB4, 0);
-                        at91_set_B_periph(AT91_PIN_PB5, 0);
+                        at91_set_B_periph(AT91_PIN_PB3, 1);
+                        at91_set_B_periph(AT91_PIN_PB4, 1);
+                        at91_set_B_periph(AT91_PIN_PB5, 1);
                 }
         }
 
@@ -341,29 +372,45 @@ void __init at91_add_device_mmc(struct at91_mmc_data *data) {}
 #if defined(CONFIG_MTD_NAND_AT91) || defined(CONFIG_MTD_NAND_AT91_MODULE)
 static struct at91_nand_data nand_data;
 
-static struct resource at91_nand_resources[] = {
+#define NAND_BASE       AT91_CHIPSELECT_3
+
+static struct resource nand_resources[] = {
         {
-                .start  = AT91_SMARTMEDIA_BASE,
-                .end    = AT91_SMARTMEDIA_BASE + SZ_8M - 1,
+                .start  = NAND_BASE,
+                .end    = NAND_BASE + SZ_8M - 1,
                 .flags  = IORESOURCE_MEM,
         }
 };
 
-static struct platform_device at91_nand_device = {
+static struct platform_device at91rm9200_nand_device = {
         .name           = "at91_nand",
         .id             = -1,
         .dev            = {
                                 .platform_data  = &nand_data,
         },
-        .resource       = at91_nand_resources,
-        .num_resources  = ARRAY_SIZE(at91_nand_resources),
+        .resource       = nand_resources,
+        .num_resources  = ARRAY_SIZE(nand_resources),
 };
 
 void __init at91_add_device_nand(struct at91_nand_data *data)
 {
+        unsigned int csa;
+
         if (!data)
                 return;
 
+        /* enable the address range of CS3 */
+        csa = at91_sys_read(AT91_EBI_CSA);
+        at91_sys_write(AT91_EBI_CSA, csa | AT91_EBI_CS3A_SMC_SMARTMEDIA);
+
+        /* set the bus interface characteristics */
+        at91_sys_write(AT91_SMC_CSR(3), AT91_SMC_ACSS_STD | AT91_SMC_DBW_8 | AT91_SMC_WSEN
+                | AT91_SMC_NWS_(5)
+                | AT91_SMC_TDF_(1)
+                | AT91_SMC_RWSETUP_(0)  /* tDS Data Set up Time 30 - ns */
+                | AT91_SMC_RWHOLD_(1)   /* tDH Data Hold Time 20 - ns */
+        );
+
         /* enable pin */
         if (data->enable_pin)
                 at91_set_gpio_output(data->enable_pin, 1);
@@ -380,7 +427,7 @@ void __init at91_add_device_nand(struct at91_nand_data *data)
         at91_set_A_periph(AT91_PIN_PC3, 0);             /* SMWE */
 
         nand_data = *data;
-        platform_device_register(&at91_nand_device);
+        platform_device_register(&at91rm9200_nand_device);
 }
 #else
 void __init at91_add_device_nand(struct at91_nand_data *data) {}
@@ -392,10 +439,25 @@ void __init at91_add_device_nand(struct at91_nand_data *data) {}
  * -------------------------------------------------------------------- */
 
 #if defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE)
+
+static struct resource twi_resources[] = {
+        [0] = {
+                .start  = AT91RM9200_BASE_TWI,
+                .end    = AT91RM9200_BASE_TWI + SZ_16K - 1,
+                .flags  = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start  = AT91RM9200_ID_TWI,
+                .end    = AT91RM9200_ID_TWI,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
 static struct platform_device at91rm9200_twi_device = {
         .name           = "at91_i2c",
         .id             = -1,
-        .num_resources  = 0,
+        .resource       = twi_resources,
+        .num_resources  = ARRAY_SIZE(twi_resources),
 };
 
 void __init at91_add_device_i2c(void)
@@ -421,7 +483,7 @@ void __init at91_add_device_i2c(void) {}
 #if defined(CONFIG_SPI_AT91) || defined(CONFIG_SPI_AT91_MODULE) || defined(CONFIG_AT91_SPI) || defined(CONFIG_AT91_SPI_MODULE)
 static u64 spi_dmamask = 0xffffffffUL;
 
-static struct resource at91_spi_resources[] = {
+static struct resource spi_resources[] = {
         [0] = {
                 .start  = AT91RM9200_BASE_SPI,
                 .end    = AT91RM9200_BASE_SPI + SZ_16K - 1,
@@ -438,14 +500,14 @@ static struct platform_device at91rm9200_spi_device = {
         .name           = "at91_spi",
         .id             = 0,
         .dev            = {
-                .dma_mask               = &spi_dmamask,
-                .coherent_dma_mask      = 0xffffffff,
+                                .dma_mask               = &spi_dmamask,
+                                .coherent_dma_mask      = 0xffffffff,
         },
-        .resource       = at91_spi_resources,
-        .num_resources  = ARRAY_SIZE(at91_spi_resources),
+        .resource       = spi_resources,
+        .num_resources  = ARRAY_SIZE(spi_resources),
 };
 
-static const unsigned at91_spi_standard_cs[4] = { AT91_PIN_PA3, AT91_PIN_PA4, AT91_PIN_PA5, AT91_PIN_PA6 };
+static const unsigned spi_standard_cs[4] = { AT91_PIN_PA3, AT91_PIN_PA4, AT91_PIN_PA5, AT91_PIN_PA6 };
 
 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
 {
@@ -461,7 +523,7 @@ void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
                 if (devices[i].controller_data)
                         cs_pin = (unsigned long) devices[i].controller_data;
                 else
-                        cs_pin = at91_spi_standard_cs[devices[i].chip_select];
+                        cs_pin = spi_standard_cs[devices[i].chip_select];
 
 #ifdef CONFIG_SPI_AT91_MANUAL_CS
                 at91_set_gpio_output(cs_pin, 1);
@@ -474,7 +536,7 @@ void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
         }
 
         spi_register_board_info(devices, nr_devices);
-        at91_clock_associate("spi0_clk", &at91rm9200_spi_device.dev, "spi");
+        at91_clock_associate("spi_clk", &at91rm9200_spi_device.dev, "spi");
         platform_device_register(&at91rm9200_spi_device);
 }
 #else
@@ -486,7 +548,7 @@ void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
  *  RTC
  * -------------------------------------------------------------------- */
 
-#if defined(CONFIG_RTC_DRV_AT91) || defined(CONFIG_RTC_DRV_AT91_MODULE)
+#if defined(CONFIG_RTC_DRV_AT91RM9200) || defined(CONFIG_RTC_DRV_AT91RM9200_MODULE)
 static struct platform_device at91rm9200_rtc_device = {
         .name           = "at91_rtc",
         .id             = -1,
@@ -506,7 +568,7 @@ static void __init at91_add_device_rtc(void) {}
  *  Watchdog
  * -------------------------------------------------------------------- */
 
-#if defined(CONFIG_AT91_WATCHDOG) || defined(CONFIG_AT91_WATCHDOG_MODULE)
+#if defined(CONFIG_AT91RM9200_WATCHDOG) || defined(CONFIG_AT91RM9200_WATCHDOG_MODULE)
 static struct platform_device at91rm9200_wdt_device = {
         .name           = "at91_wdt",
         .id             = -1,