#include <linux/module.h>
#include <linux/init.h>
#include <linux/io.h>
+#include <linux/slab.h>
#include <linux/spinlock.h>
+#include <linux/list.h>
+#include <linux/ctype.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+#include <linux/uaccess.h>
#include <asm/system.h>
-#include <mach/control.h>
-#include <mach/mux.h>
+#include <plat/control.h>
+#include <plat/mux.h>
-#ifdef CONFIG_OMAP_MUX
+#include "mux.h"
+
+#define OMAP_MUX_BASE_OFFSET 0x30 /* Offset from CTRL_BASE */
+#define OMAP_MUX_BASE_SZ 0x5ca
+
+struct omap_mux_entry {
+ struct omap_mux mux;
+ struct list_head node;
+};
+
+static unsigned long mux_phys;
+static void __iomem *mux_base;
+
+u16 omap_mux_read(u16 reg)
+{
+ if (cpu_is_omap24xx())
+ return __raw_readb(mux_base + reg);
+ else
+ return __raw_readw(mux_base + reg);
+}
+
+void omap_mux_write(u16 val, u16 reg)
+{
+ if (cpu_is_omap24xx())
+ __raw_writeb(val, mux_base + reg);
+ else
+ __raw_writew(val, mux_base + reg);
+}
+
+void omap_mux_write_array(struct omap_board_mux *board_mux)
+{
+ while (board_mux->reg_offset != OMAP_MUX_TERMINATOR) {
+ omap_mux_write(board_mux->value, board_mux->reg_offset);
+ board_mux++;
+ }
+}
+
+#if defined(CONFIG_ARCH_OMAP2) && defined(CONFIG_OMAP_MUX)
static struct omap_mux_cfg arch_mux_cfg;
/* NOTE: See mux.h for the enumeration */
-#ifdef CONFIG_ARCH_OMAP24XX
static struct pin_config __initdata_or_module omap24xx_pins[] = {
/*
* description mux mux pull pull debug
#define OMAP24XX_PINS_SZ ARRAY_SIZE(omap24xx_pins)
-#else
-#define omap24xx_pins NULL
-#define OMAP24XX_PINS_SZ 0
-#endif /* CONFIG_ARCH_OMAP24XX */
-
-#ifdef CONFIG_ARCH_OMAP34XX
-static struct pin_config __initdata_or_module omap34xx_pins[] = {
-/*
- * Name, reg-offset,
- * mux-mode | [active-mode | off-mode]
- */
-
-/* 34xx I2C */
-MUX_CFG_34XX("K21_34XX_I2C1_SCL", 0x1ba,
- OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_INPUT_PULLUP)
-MUX_CFG_34XX("J21_34XX_I2C1_SDA", 0x1bc,
- OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_INPUT_PULLUP)
-MUX_CFG_34XX("AF15_34XX_I2C2_SCL", 0x1be,
- OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_INPUT_PULLUP)
-MUX_CFG_34XX("AE15_34XX_I2C2_SDA", 0x1c0,
- OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_INPUT_PULLUP)
-MUX_CFG_34XX("AF14_34XX_I2C3_SCL", 0x1c2,
- OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_INPUT_PULLUP)
-MUX_CFG_34XX("AG14_34XX_I2C3_SDA", 0x1c4,
- OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_INPUT_PULLUP)
-MUX_CFG_34XX("AD26_34XX_I2C4_SCL", 0xa00,
- OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_INPUT_PULLUP)
-MUX_CFG_34XX("AE26_34XX_I2C4_SDA", 0xa02,
- OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_INPUT_PULLUP)
-
-/* PHY - HSUSB: 12-pin ULPI PHY: Port 1*/
-MUX_CFG_34XX("Y8_3430_USB1HS_PHY_CLK", 0x5da,
- OMAP34XX_MUX_MODE3 | OMAP34XX_PIN_OUTPUT)
-MUX_CFG_34XX("Y9_3430_USB1HS_PHY_STP", 0x5d8,
- OMAP34XX_MUX_MODE3 | OMAP34XX_PIN_OUTPUT)
-MUX_CFG_34XX("AA14_3430_USB1HS_PHY_DIR", 0x5ec,
- OMAP34XX_MUX_MODE3 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("AA11_3430_USB1HS_PHY_NXT", 0x5ee,
- OMAP34XX_MUX_MODE3 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("W13_3430_USB1HS_PHY_D0", 0x5dc,
- OMAP34XX_MUX_MODE3 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("W12_3430_USB1HS_PHY_D1", 0x5de,
- OMAP34XX_MUX_MODE3 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("W11_3430_USB1HS_PHY_D2", 0x5e0,
- OMAP34XX_MUX_MODE3 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("Y11_3430_USB1HS_PHY_D3", 0x5ea,
- OMAP34XX_MUX_MODE3 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("W9_3430_USB1HS_PHY_D4", 0x5e4,
- OMAP34XX_MUX_MODE3 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("Y12_3430_USB1HS_PHY_D5", 0x5e6,
- OMAP34XX_MUX_MODE3 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("W8_3430_USB1HS_PHY_D6", 0x5e8,
- OMAP34XX_MUX_MODE3 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("Y13_3430_USB1HS_PHY_D7", 0x5e2,
- OMAP34XX_MUX_MODE3 | OMAP34XX_PIN_INPUT_PULLDOWN)
-
-/* PHY - HSUSB: 12-pin ULPI PHY: Port 2*/
-MUX_CFG_34XX("AA8_3430_USB2HS_PHY_CLK", 0x5f0,
- OMAP34XX_MUX_MODE3 | OMAP34XX_PIN_OUTPUT)
-MUX_CFG_34XX("AA10_3430_USB2HS_PHY_STP", 0x5f2,
- OMAP34XX_MUX_MODE3 | OMAP34XX_PIN_OUTPUT)
-MUX_CFG_34XX("AA9_3430_USB2HS_PHY_DIR", 0x5f4,
- OMAP34XX_MUX_MODE3 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("AB11_3430_USB2HS_PHY_NXT", 0x5f6,
- OMAP34XX_MUX_MODE3 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("AB10_3430_USB2HS_PHY_D0", 0x5f8,
- OMAP34XX_MUX_MODE3 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("AB9_3430_USB2HS_PHY_D1", 0x5fa,
- OMAP34XX_MUX_MODE3 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("W3_3430_USB2HS_PHY_D2", 0x1d4,
- OMAP34XX_MUX_MODE3 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("T4_3430_USB2HS_PHY_D3", 0x1de,
- OMAP34XX_MUX_MODE3 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("T3_3430_USB2HS_PHY_D4", 0x1d8,
- OMAP34XX_MUX_MODE3 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("R3_3430_USB2HS_PHY_D5", 0x1da,
- OMAP34XX_MUX_MODE3 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("R4_3430_USB2HS_PHY_D6", 0x1dc,
- OMAP34XX_MUX_MODE3 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("T2_3430_USB2HS_PHY_D7", 0x1d6,
- OMAP34XX_MUX_MODE3 | OMAP34XX_PIN_INPUT_PULLDOWN)
-
-/* TLL - HSUSB: 12-pin TLL Port 1*/
-MUX_CFG_34XX("Y8_3430_USB1HS_TLL_CLK", 0x5da,
- OMAP34XX_MUX_MODE6 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("Y9_3430_USB1HS_TLL_STP", 0x5d8,
- OMAP34XX_MUX_MODE6 | OMAP34XX_PIN_INPUT_PULLUP)
-MUX_CFG_34XX("AA14_3430_USB1HS_TLL_DIR", 0x5ec,
- OMAP34XX_MUX_MODE6 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("AA11_3430_USB1HS_TLL_NXT", 0x5ee,
- OMAP34XX_MUX_MODE6 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("W13_3430_USB1HS_TLL_D0", 0x5dc,
- OMAP34XX_MUX_MODE6 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("W12_3430_USB1HS_TLL_D1", 0x5de,
- OMAP34XX_MUX_MODE6 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("W11_3430_USB1HS_TLL_D2", 0x5e0,
- OMAP34XX_MUX_MODE6 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("Y11_3430_USB1HS_TLL_D3", 0x5ea,
- OMAP34XX_MUX_MODE6 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("W9_3430_USB1HS_TLL_D4", 0x5e4,
- OMAP34XX_MUX_MODE6 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("Y12_3430_USB1HS_TLL_D5", 0x5e6,
- OMAP34XX_MUX_MODE6 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("W8_3430_USB1HS_TLL_D6", 0x5e8,
- OMAP34XX_MUX_MODE6 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("Y13_3430_USB1HS_TLL_D7", 0x5e2,
- OMAP34XX_MUX_MODE6 | OMAP34XX_PIN_INPUT_PULLDOWN)
-
-/* TLL - HSUSB: 12-pin TLL Port 2*/
-MUX_CFG_34XX("AA8_3430_USB2HS_TLL_CLK", 0x5f0,
- OMAP34XX_MUX_MODE6 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("AA10_3430_USB2HS_TLL_STP", 0x5f2,
- OMAP34XX_MUX_MODE6 | OMAP34XX_PIN_INPUT_PULLUP)
-MUX_CFG_34XX("AA9_3430_USB2HS_TLL_DIR", 0x5f4,
- OMAP34XX_MUX_MODE6 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("AB11_3430_USB2HS_TLL_NXT", 0x5f6,
- OMAP34XX_MUX_MODE6 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("AB10_3430_USB2HS_TLL_D0", 0x5f8,
- OMAP34XX_MUX_MODE6 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("AB9_3430_USB2HS_TLL_D1", 0x5fa,
- OMAP34XX_MUX_MODE6 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("W3_3430_USB2HS_TLL_D2", 0x1d4,
- OMAP34XX_MUX_MODE2 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("T4_3430_USB2HS_TLL_D3", 0x1de,
- OMAP34XX_MUX_MODE2 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("T3_3430_USB2HS_TLL_D4", 0x1d8,
- OMAP34XX_MUX_MODE2 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("R3_3430_USB2HS_TLL_D5", 0x1da,
- OMAP34XX_MUX_MODE2 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("R4_3430_USB2HS_TLL_D6", 0x1dc,
- OMAP34XX_MUX_MODE2 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("T2_3430_USB2HS_TLL_D7", 0x1d6,
- OMAP34XX_MUX_MODE2 | OMAP34XX_PIN_INPUT_PULLDOWN)
-
-/* TLL - HSUSB: 12-pin TLL Port 3*/
-MUX_CFG_34XX("AA6_3430_USB3HS_TLL_CLK", 0x180,
- OMAP34XX_MUX_MODE5 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("AB3_3430_USB3HS_TLL_STP", 0x166,
- OMAP34XX_MUX_MODE5 | OMAP34XX_PIN_INPUT_PULLUP)
-MUX_CFG_34XX("AA3_3430_USB3HS_TLL_DIR", 0x168,
- OMAP34XX_MUX_MODE5 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("Y3_3430_USB3HS_TLL_NXT", 0x16a,
- OMAP34XX_MUX_MODE5 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("AA5_3430_USB3HS_TLL_D0", 0x186,
- OMAP34XX_MUX_MODE5 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("Y4_3430_USB3HS_TLL_D1", 0x184,
- OMAP34XX_MUX_MODE5 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("Y5_3430_USB3HS_TLL_D2", 0x188,
- OMAP34XX_MUX_MODE5 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("W5_3430_USB3HS_TLL_D3", 0x18a,
- OMAP34XX_MUX_MODE5 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("AB12_3430_USB3HS_TLL_D4", 0x16c,
- OMAP34XX_MUX_MODE5 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("AB13_3430_USB3HS_TLL_D5", 0x16e,
- OMAP34XX_MUX_MODE5 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("AA13_3430_USB3HS_TLL_D6", 0x170,
- OMAP34XX_MUX_MODE5 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("AA12_3430_USB3HS_TLL_D7", 0x172,
- OMAP34XX_MUX_MODE5 | OMAP34XX_PIN_INPUT_PULLDOWN)
-
-/* PHY FSUSB: FS Serial for Port 1 (multiple PHY modes supported) */
-MUX_CFG_34XX("AF10_3430_USB1FS_PHY_MM1_RXDP", 0x5d8,
- OMAP34XX_MUX_MODE5 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("AG9_3430_USB1FS_PHY_MM1_RXDM", 0x5ee,
- OMAP34XX_MUX_MODE5 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("W13_3430_USB1FS_PHY_MM1_RXRCV", 0x5dc,
- OMAP34XX_MUX_MODE5 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("W12_3430_USB1FS_PHY_MM1_TXSE0", 0x5de,
- OMAP34XX_MUX_MODE5 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("W11_3430_USB1FS_PHY_MM1_TXDAT", 0x5e0,
- OMAP34XX_MUX_MODE5 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("Y11_3430_USB1FS_PHY_MM1_TXEN_N", 0x5ea,
- OMAP34XX_MUX_MODE5 | OMAP34XX_PIN_OUTPUT)
-
-/* PHY FSUSB: FS Serial for Port 2 (multiple PHY modes supported) */
-MUX_CFG_34XX("AF7_3430_USB2FS_PHY_MM2_RXDP", 0x5f2,
- OMAP34XX_MUX_MODE5 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("AH7_3430_USB2FS_PHY_MM2_RXDM", 0x5f6,
- OMAP34XX_MUX_MODE5 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("AB10_3430_USB2FS_PHY_MM2_RXRCV", 0x5f8,
- OMAP34XX_MUX_MODE5 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("AB9_3430_USB2FS_PHY_MM2_TXSE0", 0x5fa,
- OMAP34XX_MUX_MODE5 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("W3_3430_USB2FS_PHY_MM2_TXDAT", 0x1d4,
- OMAP34XX_MUX_MODE5 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("T4_3430_USB2FS_PHY_MM2_TXEN_N", 0x1de,
- OMAP34XX_MUX_MODE5 | OMAP34XX_PIN_OUTPUT)
-
-/* PHY FSUSB: FS Serial for Port 3 (multiple PHY modes supported) */
-MUX_CFG_34XX("AH3_3430_USB3FS_PHY_MM3_RXDP", 0x166,
- OMAP34XX_MUX_MODE6 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("AE3_3430_USB3FS_PHY_MM3_RXDM", 0x16a,
- OMAP34XX_MUX_MODE6 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("AD1_3430_USB3FS_PHY_MM3_RXRCV", 0x186,
- OMAP34XX_MUX_MODE6 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("AE1_3430_USB3FS_PHY_MM3_TXSE0", 0x184,
- OMAP34XX_MUX_MODE6 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("AD2_3430_USB3FS_PHY_MM3_TXDAT", 0x188,
- OMAP34XX_MUX_MODE6 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("AC1_3430_USB3FS_PHY_MM3_TXEN_N", 0x18a,
- OMAP34XX_MUX_MODE6 | OMAP34XX_PIN_OUTPUT)
-
-
-/* 34XX GPIO - bidirectional, unless the name has an "_OUT" suffix.
- * (Always specify PIN_INPUT, except for names suffixed by "_OUT".)
- * No internal pullup/pulldown without "_UP" or "_DOWN" suffix.
- */
-MUX_CFG_34XX("AF26_34XX_GPIO0", 0x1e0,
- OMAP34XX_MUX_MODE4 | OMAP34XX_PIN_INPUT)
-MUX_CFG_34XX("AF22_34XX_GPIO9", 0xa18,
- OMAP34XX_MUX_MODE4 | OMAP34XX_PIN_INPUT)
-MUX_CFG_34XX("AH8_34XX_GPIO29", 0x5fa,
- OMAP34XX_MUX_MODE4 | OMAP34XX_PIN_INPUT)
-MUX_CFG_34XX("U8_34XX_GPIO54_OUT", 0x0b4,
- OMAP34XX_MUX_MODE4 | OMAP34XX_PIN_OUTPUT)
-MUX_CFG_34XX("U8_34XX_GPIO54_DOWN", 0x0b4,
- OMAP34XX_MUX_MODE4 | OMAP34XX_PIN_INPUT_PULLDOWN)
-MUX_CFG_34XX("L8_34XX_GPIO63", 0x0ce,
- OMAP34XX_MUX_MODE4 | OMAP34XX_PIN_INPUT)
-MUX_CFG_34XX("G25_34XX_GPIO86_OUT", 0x0fc,
- OMAP34XX_MUX_MODE4 | OMAP34XX_PIN_OUTPUT)
-MUX_CFG_34XX("AG4_34XX_GPIO134_OUT", 0x160,
- OMAP34XX_MUX_MODE4 | OMAP34XX_PIN_OUTPUT)
-MUX_CFG_34XX("AE4_34XX_GPIO136_OUT", 0x164,
- OMAP34XX_MUX_MODE4 | OMAP34XX_PIN_OUTPUT)
-MUX_CFG_34XX("AF6_34XX_GPIO140_UP", 0x16c,
- OMAP34XX_MUX_MODE4 | OMAP34XX_PIN_INPUT_PULLUP)
-MUX_CFG_34XX("AE6_34XX_GPIO141", 0x16e,
- OMAP34XX_MUX_MODE4 | OMAP34XX_PIN_INPUT)
-MUX_CFG_34XX("AF5_34XX_GPIO142", 0x170,
- OMAP34XX_MUX_MODE4 | OMAP34XX_PIN_INPUT)
-MUX_CFG_34XX("AE5_34XX_GPIO143", 0x172,
- OMAP34XX_MUX_MODE4 | OMAP34XX_PIN_INPUT)
-MUX_CFG_34XX("H19_34XX_GPIO164_OUT", 0x19c,
- OMAP34XX_MUX_MODE4 | OMAP34XX_PIN_OUTPUT)
-MUX_CFG_34XX("J25_34XX_GPIO170", 0x1c6,
- OMAP34XX_MUX_MODE4 | OMAP34XX_PIN_INPUT)
-
-/* OMAP3 SDRC CKE signals to SDR/DDR ram chips */
-MUX_CFG_34XX("H16_34XX_SDRC_CKE0", 0x262,
- OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_OUTPUT)
-MUX_CFG_34XX("H17_34XX_SDRC_CKE1", 0x264,
- OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_OUTPUT)
-
-/* MMC1 */
-MUX_CFG_34XX("N28_3430_MMC1_CLK", 0x144,
- OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_INPUT_PULLUP)
-MUX_CFG_34XX("M27_3430_MMC1_CMD", 0x146,
- OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_INPUT_PULLUP)
-MUX_CFG_34XX("N27_3430_MMC1_DAT0", 0x148,
- OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_INPUT_PULLUP)
-MUX_CFG_34XX("N26_3430_MMC1_DAT1", 0x14a,
- OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_INPUT_PULLUP)
-MUX_CFG_34XX("N25_3430_MMC1_DAT2", 0x14c,
- OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_INPUT_PULLUP)
-MUX_CFG_34XX("P28_3430_MMC1_DAT3", 0x14e,
- OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_INPUT_PULLUP)
-MUX_CFG_34XX("P27_3430_MMC1_DAT4", 0x150,
- OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_INPUT_PULLUP)
-MUX_CFG_34XX("P26_3430_MMC1_DAT5", 0x152,
- OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_INPUT_PULLUP)
-MUX_CFG_34XX("R27_3430_MMC1_DAT6", 0x154,
- OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_INPUT_PULLUP)
-MUX_CFG_34XX("R25_3430_MMC1_DAT7", 0x156,
- OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_INPUT_PULLUP)
-
-/* MMC2 */
-MUX_CFG_34XX("AE2_3430_MMC2_CLK", 0x158,
- OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_INPUT_PULLUP)
-MUX_CFG_34XX("AG5_3430_MMC2_CMD", 0x15A,
- OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_INPUT_PULLUP)
-MUX_CFG_34XX("AH5_3430_MMC2_DAT0", 0x15c,
- OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_INPUT_PULLUP)
-MUX_CFG_34XX("AH4_3430_MMC2_DAT1", 0x15e,
- OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_INPUT_PULLUP)
-MUX_CFG_34XX("AG4_3430_MMC2_DAT2", 0x160,
- OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_INPUT_PULLUP)
-MUX_CFG_34XX("AF4_3430_MMC2_DAT3", 0x162,
- OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_INPUT_PULLUP)
-
-/* MMC3 */
-MUX_CFG_34XX("AF10_3430_MMC3_CLK", 0x5d8,
- OMAP34XX_MUX_MODE2 | OMAP34XX_PIN_INPUT_PULLUP)
-MUX_CFG_34XX("AC3_3430_MMC3_CMD", 0x1d0,
- OMAP34XX_MUX_MODE3 | OMAP34XX_PIN_INPUT_PULLUP)
-MUX_CFG_34XX("AE11_3430_MMC3_DAT0", 0x5e4,
- OMAP34XX_MUX_MODE2 | OMAP34XX_PIN_INPUT_PULLUP)
-MUX_CFG_34XX("AH9_3430_MMC3_DAT1", 0x5e6,
- OMAP34XX_MUX_MODE2 | OMAP34XX_PIN_INPUT_PULLUP)
-MUX_CFG_34XX("AF13_3430_MMC3_DAT2", 0x5e8,
- OMAP34XX_MUX_MODE2 | OMAP34XX_PIN_INPUT_PULLUP)
-MUX_CFG_34XX("AF13_3430_MMC3_DAT3", 0x5e2,
- OMAP34XX_MUX_MODE2 | OMAP34XX_PIN_INPUT_PULLUP)
-};
-
-#define OMAP34XX_PINS_SZ ARRAY_SIZE(omap34xx_pins)
-
-#else
-#define omap34xx_pins NULL
-#define OMAP34XX_PINS_SZ 0
-#endif /* CONFIG_ARCH_OMAP34XX */
-
#if defined(CONFIG_OMAP_MUX_DEBUG) || defined(CONFIG_OMAP_MUX_WARNINGS)
+
static void __init_or_module omap2_cfg_debug(const struct pin_config *cfg, u16 reg)
{
u16 orig;
u8 warn = 0, debug = 0;
- if (cpu_is_omap24xx())
- orig = omap_ctrl_readb(cfg->mux_reg);
- else
- orig = omap_ctrl_readw(cfg->mux_reg);
+ orig = omap_mux_read(cfg->mux_reg - OMAP_MUX_BASE_OFFSET);
#ifdef CONFIG_OMAP_MUX_DEBUG
debug = cfg->debug;
#define omap2_cfg_debug(x, y) do {} while (0)
#endif
-#ifdef CONFIG_ARCH_OMAP24XX
static int __init_or_module omap24xx_cfg_reg(const struct pin_config *cfg)
{
static DEFINE_SPINLOCK(mux_spin_lock);
if (cfg->pu_pd_val)
reg |= OMAP2_PULL_UP;
omap2_cfg_debug(cfg, reg);
- omap_ctrl_writeb(reg, cfg->mux_reg);
+ omap_mux_write(reg, cfg->mux_reg - OMAP_MUX_BASE_OFFSET);
spin_unlock_irqrestore(&mux_spin_lock, flags);
return 0;
}
+
+int __init omap2_mux_init(void)
+{
+ u32 mux_pbase;
+
+ if (cpu_is_omap2420())
+ mux_pbase = OMAP2420_CTRL_BASE + OMAP_MUX_BASE_OFFSET;
+ else if (cpu_is_omap2430())
+ mux_pbase = OMAP243X_CTRL_BASE + OMAP_MUX_BASE_OFFSET;
+ else
+ return -ENODEV;
+
+ mux_base = ioremap(mux_pbase, OMAP_MUX_BASE_SZ);
+ if (!mux_base) {
+ printk(KERN_ERR "mux: Could not ioremap\n");
+ return -ENODEV;
+ }
+
+ if (cpu_is_omap24xx()) {
+ arch_mux_cfg.pins = omap24xx_pins;
+ arch_mux_cfg.size = OMAP24XX_PINS_SZ;
+ arch_mux_cfg.cfg_reg = omap24xx_cfg_reg;
+
+ return omap_mux_register(&arch_mux_cfg);
+ }
+
+ return 0;
+}
+
#else
-#define omap24xx_cfg_reg NULL
-#endif
+int __init omap2_mux_init(void)
+{
+ return 0;
+}
+#endif /* CONFIG_OMAP_MUX */
+
+/*----------------------------------------------------------------------------*/
-#ifdef CONFIG_ARCH_OMAP34XX
-static int __init_or_module omap34xx_cfg_reg(const struct pin_config *cfg)
+#ifdef CONFIG_ARCH_OMAP3
+static LIST_HEAD(muxmodes);
+static DEFINE_MUTEX(muxmode_mutex);
+
+#ifdef CONFIG_OMAP_MUX
+
+static char *omap_mux_options;
+
+int __init omap_mux_init_gpio(int gpio, int val)
{
- static DEFINE_SPINLOCK(mux_spin_lock);
- unsigned long flags;
- u16 reg = 0;
+ struct omap_mux_entry *e;
+ int found = 0;
+
+ if (!gpio)
+ return -EINVAL;
+
+ list_for_each_entry(e, &muxmodes, node) {
+ struct omap_mux *m = &e->mux;
+ if (gpio == m->gpio) {
+ u16 old_mode;
+ u16 mux_mode;
+
+ old_mode = omap_mux_read(m->reg_offset);
+ mux_mode = val & ~(OMAP_MUX_NR_MODES - 1);
+ mux_mode |= OMAP_MUX_MODE4;
+ printk(KERN_DEBUG "mux: Setting signal "
+ "%s.gpio%i 0x%04x -> 0x%04x\n",
+ m->muxnames[0], gpio, old_mode, mux_mode);
+ omap_mux_write(mux_mode, m->reg_offset);
+ found++;
+ }
+ }
- spin_lock_irqsave(&mux_spin_lock, flags);
- reg |= cfg->mux_val;
- omap2_cfg_debug(cfg, reg);
- omap_ctrl_writew(reg, cfg->mux_reg);
- spin_unlock_irqrestore(&mux_spin_lock, flags);
+ if (found == 1)
+ return 0;
+
+ if (found > 1) {
+ printk(KERN_ERR "mux: Multiple gpio paths for gpio%i\n", gpio);
+ return -EINVAL;
+ }
+
+ printk(KERN_ERR "mux: Could not set gpio%i\n", gpio);
+
+ return -ENODEV;
+}
+
+int __init omap_mux_init_signal(char *muxname, int val)
+{
+ struct omap_mux_entry *e;
+ char *m0_name = NULL, *mode_name = NULL;
+ int found = 0;
+
+ mode_name = strchr(muxname, '.');
+ if (mode_name) {
+ *mode_name = '\0';
+ mode_name++;
+ m0_name = muxname;
+ } else {
+ mode_name = muxname;
+ }
+
+ list_for_each_entry(e, &muxmodes, node) {
+ struct omap_mux *m = &e->mux;
+ char *m0_entry = m->muxnames[0];
+ int i;
+
+ if (m0_name && strcmp(m0_name, m0_entry))
+ continue;
+
+ for (i = 0; i < OMAP_MUX_NR_MODES; i++) {
+ char *mode_cur = m->muxnames[i];
+
+ if (!mode_cur)
+ continue;
+
+ if (!strcmp(mode_name, mode_cur)) {
+ u16 old_mode;
+ u16 mux_mode;
+
+ old_mode = omap_mux_read(m->reg_offset);
+ mux_mode = val | i;
+ printk(KERN_DEBUG "mux: Setting signal "
+ "%s.%s 0x%04x -> 0x%04x\n",
+ m0_entry, muxname, old_mode, mux_mode);
+ omap_mux_write(mux_mode, m->reg_offset);
+ found++;
+ }
+ }
+ }
+
+ if (found == 1)
+ return 0;
+
+ if (found > 1) {
+ printk(KERN_ERR "mux: Multiple signal paths (%i) for %s\n",
+ found, muxname);
+ return -EINVAL;
+ }
+
+ printk(KERN_ERR "mux: Could not set signal %s\n", muxname);
+
+ return -ENODEV;
+}
+
+#ifdef CONFIG_DEBUG_FS
+
+#define OMAP_MUX_MAX_NR_FLAGS 10
+#define OMAP_MUX_TEST_FLAG(val, mask) \
+ if (((val) & (mask)) == (mask)) { \
+ i++; \
+ flags[i] = #mask; \
+ }
+
+/* REVISIT: Add checking for non-optimal mux settings */
+static inline void omap_mux_decode(struct seq_file *s, u16 val)
+{
+ char *flags[OMAP_MUX_MAX_NR_FLAGS];
+ char mode[sizeof("OMAP_MUX_MODE") + 1];
+ int i = -1;
+
+ sprintf(mode, "OMAP_MUX_MODE%d", val & 0x7);
+ i++;
+ flags[i] = mode;
+
+ OMAP_MUX_TEST_FLAG(val, OMAP_PIN_OFF_WAKEUPENABLE);
+ if (val & OMAP_OFF_EN) {
+ if (!(val & OMAP_OFFOUT_EN)) {
+ if (!(val & OMAP_OFF_PULL_UP)) {
+ OMAP_MUX_TEST_FLAG(val,
+ OMAP_PIN_OFF_INPUT_PULLDOWN);
+ } else {
+ OMAP_MUX_TEST_FLAG(val,
+ OMAP_PIN_OFF_INPUT_PULLUP);
+ }
+ } else {
+ if (!(val & OMAP_OFFOUT_VAL)) {
+ OMAP_MUX_TEST_FLAG(val,
+ OMAP_PIN_OFF_OUTPUT_LOW);
+ } else {
+ OMAP_MUX_TEST_FLAG(val,
+ OMAP_PIN_OFF_OUTPUT_HIGH);
+ }
+ }
+ }
+
+ if (val & OMAP_INPUT_EN) {
+ if (val & OMAP_PULL_ENA) {
+ if (!(val & OMAP_PULL_UP)) {
+ OMAP_MUX_TEST_FLAG(val,
+ OMAP_PIN_INPUT_PULLDOWN);
+ } else {
+ OMAP_MUX_TEST_FLAG(val, OMAP_PIN_INPUT_PULLUP);
+ }
+ } else {
+ OMAP_MUX_TEST_FLAG(val, OMAP_PIN_INPUT);
+ }
+ } else {
+ i++;
+ flags[i] = "OMAP_PIN_OUTPUT";
+ }
+
+ do {
+ seq_printf(s, "%s", flags[i]);
+ if (i > 0)
+ seq_printf(s, " | ");
+ } while (i-- > 0);
+}
+
+#define OMAP_MUX_DEFNAME_LEN 16
+
+static int omap_mux_dbg_board_show(struct seq_file *s, void *unused)
+{
+ struct omap_mux_entry *e;
+
+ list_for_each_entry(e, &muxmodes, node) {
+ struct omap_mux *m = &e->mux;
+ char m0_def[OMAP_MUX_DEFNAME_LEN];
+ char *m0_name = m->muxnames[0];
+ u16 val;
+ int i, mode;
+
+ if (!m0_name)
+ continue;
+
+ /* REVISIT: Needs to be updated if mode0 names get longer */
+ for (i = 0; i < OMAP_MUX_DEFNAME_LEN; i++) {
+ if (m0_name[i] == '\0') {
+ m0_def[i] = m0_name[i];
+ break;
+ }
+ m0_def[i] = toupper(m0_name[i]);
+ }
+ val = omap_mux_read(m->reg_offset);
+ mode = val & OMAP_MUX_MODE7;
+
+ seq_printf(s, "OMAP%i_MUX(%s, ",
+ cpu_is_omap34xx() ? 3 : 0, m0_def);
+ omap_mux_decode(s, val);
+ seq_printf(s, "),\n");
+ }
+
+ return 0;
+}
+
+static int omap_mux_dbg_board_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, omap_mux_dbg_board_show, &inode->i_private);
+}
+
+static const struct file_operations omap_mux_dbg_board_fops = {
+ .open = omap_mux_dbg_board_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static int omap_mux_dbg_signal_show(struct seq_file *s, void *unused)
+{
+ struct omap_mux *m = s->private;
+ const char *none = "NA";
+ u16 val;
+ int mode;
+
+ val = omap_mux_read(m->reg_offset);
+ mode = val & OMAP_MUX_MODE7;
+
+ seq_printf(s, "name: %s.%s (0x%08lx/0x%03x = 0x%04x), b %s, t %s\n",
+ m->muxnames[0], m->muxnames[mode],
+ mux_phys + m->reg_offset, m->reg_offset, val,
+ m->balls[0] ? m->balls[0] : none,
+ m->balls[1] ? m->balls[1] : none);
+ seq_printf(s, "mode: ");
+ omap_mux_decode(s, val);
+ seq_printf(s, "\n");
+ seq_printf(s, "signals: %s | %s | %s | %s | %s | %s | %s | %s\n",
+ m->muxnames[0] ? m->muxnames[0] : none,
+ m->muxnames[1] ? m->muxnames[1] : none,
+ m->muxnames[2] ? m->muxnames[2] : none,
+ m->muxnames[3] ? m->muxnames[3] : none,
+ m->muxnames[4] ? m->muxnames[4] : none,
+ m->muxnames[5] ? m->muxnames[5] : none,
+ m->muxnames[6] ? m->muxnames[6] : none,
+ m->muxnames[7] ? m->muxnames[7] : none);
return 0;
}
+
+#define OMAP_MUX_MAX_ARG_CHAR 7
+
+static ssize_t omap_mux_dbg_signal_write(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ char buf[OMAP_MUX_MAX_ARG_CHAR];
+ struct seq_file *seqf;
+ struct omap_mux *m;
+ unsigned long val;
+ int buf_size, ret;
+
+ if (count > OMAP_MUX_MAX_ARG_CHAR)
+ return -EINVAL;
+
+ memset(buf, 0, sizeof(buf));
+ buf_size = min(count, sizeof(buf) - 1);
+
+ if (copy_from_user(buf, user_buf, buf_size))
+ return -EFAULT;
+
+ ret = strict_strtoul(buf, 0x10, &val);
+ if (ret < 0)
+ return ret;
+
+ if (val > 0xffff)
+ return -EINVAL;
+
+ seqf = file->private_data;
+ m = seqf->private;
+
+ omap_mux_write((u16)val, m->reg_offset);
+ *ppos += count;
+
+ return count;
+}
+
+static int omap_mux_dbg_signal_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, omap_mux_dbg_signal_show, inode->i_private);
+}
+
+static const struct file_operations omap_mux_dbg_signal_fops = {
+ .open = omap_mux_dbg_signal_open,
+ .read = seq_read,
+ .write = omap_mux_dbg_signal_write,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static struct dentry *mux_dbg_dir;
+
+static void __init omap_mux_dbg_init(void)
+{
+ struct omap_mux_entry *e;
+
+ mux_dbg_dir = debugfs_create_dir("omap_mux", NULL);
+ if (!mux_dbg_dir)
+ return;
+
+ (void)debugfs_create_file("board", S_IRUGO, mux_dbg_dir,
+ NULL, &omap_mux_dbg_board_fops);
+
+ list_for_each_entry(e, &muxmodes, node) {
+ struct omap_mux *m = &e->mux;
+
+ (void)debugfs_create_file(m->muxnames[0], S_IWUGO, mux_dbg_dir,
+ m, &omap_mux_dbg_signal_fops);
+ }
+}
+
#else
-#define omap34xx_cfg_reg NULL
+static inline void omap_mux_dbg_init(void)
+{
+}
+#endif /* CONFIG_DEBUG_FS */
+
+static void __init omap_mux_free_names(struct omap_mux *m)
+{
+ int i;
+
+ for (i = 0; i < OMAP_MUX_NR_MODES; i++)
+ kfree(m->muxnames[i]);
+
+#ifdef CONFIG_DEBUG_FS
+ for (i = 0; i < OMAP_MUX_NR_SIDES; i++)
+ kfree(m->balls[i]);
#endif
-int __init omap2_mux_init(void)
+}
+
+/* Free all data except for GPIO pins unless CONFIG_DEBUG_FS is set */
+static int __init omap_mux_late_init(void)
{
- if (cpu_is_omap24xx()) {
- arch_mux_cfg.pins = omap24xx_pins;
- arch_mux_cfg.size = OMAP24XX_PINS_SZ;
- arch_mux_cfg.cfg_reg = omap24xx_cfg_reg;
- } else if (cpu_is_omap34xx()) {
- arch_mux_cfg.pins = omap34xx_pins;
- arch_mux_cfg.size = OMAP34XX_PINS_SZ;
- arch_mux_cfg.cfg_reg = omap34xx_cfg_reg;
+ struct omap_mux_entry *e, *tmp;
+
+ list_for_each_entry_safe(e, tmp, &muxmodes, node) {
+ struct omap_mux *m = &e->mux;
+ u16 mode = omap_mux_read(m->reg_offset);
+
+ if (OMAP_MODE_GPIO(mode))
+ continue;
+
+#ifndef CONFIG_DEBUG_FS
+ mutex_lock(&muxmode_mutex);
+ list_del(&e->node);
+ mutex_unlock(&muxmode_mutex);
+ omap_mux_free_names(m);
+ kfree(m);
+#endif
+
+ }
+
+ omap_mux_dbg_init();
+
+ return 0;
+}
+late_initcall(omap_mux_late_init);
+
+static void __init omap_mux_package_fixup(struct omap_mux *p,
+ struct omap_mux *superset)
+{
+ while (p->reg_offset != OMAP_MUX_TERMINATOR) {
+ struct omap_mux *s = superset;
+ int found = 0;
+
+ while (s->reg_offset != OMAP_MUX_TERMINATOR) {
+ if (s->reg_offset == p->reg_offset) {
+ *s = *p;
+ found++;
+ break;
+ }
+ s++;
+ }
+ if (!found)
+ printk(KERN_ERR "mux: Unknown entry offset 0x%x\n",
+ p->reg_offset);
+ p++;
+ }
+}
+
+#ifdef CONFIG_DEBUG_FS
+
+static void __init omap_mux_package_init_balls(struct omap_ball *b,
+ struct omap_mux *superset)
+{
+ while (b->reg_offset != OMAP_MUX_TERMINATOR) {
+ struct omap_mux *s = superset;
+ int found = 0;
+
+ while (s->reg_offset != OMAP_MUX_TERMINATOR) {
+ if (s->reg_offset == b->reg_offset) {
+ s->balls[0] = b->balls[0];
+ s->balls[1] = b->balls[1];
+ found++;
+ break;
+ }
+ s++;
+ }
+ if (!found)
+ printk(KERN_ERR "mux: Unknown ball offset 0x%x\n",
+ b->reg_offset);
+ b++;
+ }
+}
+
+#else /* CONFIG_DEBUG_FS */
+
+static inline void omap_mux_package_init_balls(struct omap_ball *b,
+ struct omap_mux *superset)
+{
+}
+
+#endif /* CONFIG_DEBUG_FS */
+
+static int __init omap_mux_setup(char *options)
+{
+ if (!options)
+ return 0;
+
+ omap_mux_options = options;
+
+ return 1;
+}
+__setup("omap_mux=", omap_mux_setup);
+
+/*
+ * Note that the omap_mux=some.signal1=0x1234,some.signal2=0x1234
+ * cmdline options only override the bootloader values.
+ * During development, please enable CONFIG_DEBUG_FS, and use the
+ * signal specific entries under debugfs.
+ */
+static void __init omap_mux_set_cmdline_signals(void)
+{
+ char *options, *next_opt, *token;
+
+ if (!omap_mux_options)
+ return;
+
+ options = kmalloc(strlen(omap_mux_options) + 1, GFP_KERNEL);
+ if (!options)
+ return;
+
+ strcpy(options, omap_mux_options);
+ next_opt = options;
+
+ while ((token = strsep(&next_opt, ",")) != NULL) {
+ char *keyval, *name;
+ unsigned long val;
+
+ keyval = token;
+ name = strsep(&keyval, "=");
+ if (name) {
+ int res;
+
+ res = strict_strtoul(keyval, 0x10, &val);
+ if (res < 0)
+ continue;
+
+ omap_mux_init_signal(name, (u16)val);
+ }
+ }
+
+ kfree(options);
+}
+
+static int __init omap_mux_copy_names(struct omap_mux *src,
+ struct omap_mux *dst)
+{
+ int i;
+
+ for (i = 0; i < OMAP_MUX_NR_MODES; i++) {
+ if (src->muxnames[i]) {
+ dst->muxnames[i] =
+ kmalloc(strlen(src->muxnames[i]) + 1,
+ GFP_KERNEL);
+ if (!dst->muxnames[i])
+ goto free;
+ strcpy(dst->muxnames[i], src->muxnames[i]);
+ }
+ }
+
+#ifdef CONFIG_DEBUG_FS
+ for (i = 0; i < OMAP_MUX_NR_SIDES; i++) {
+ if (src->balls[i]) {
+ dst->balls[i] =
+ kmalloc(strlen(src->balls[i]) + 1,
+ GFP_KERNEL);
+ if (!dst->balls[i])
+ goto free;
+ strcpy(dst->balls[i], src->balls[i]);
+ }
+ }
+#endif
+
+ return 0;
+
+free:
+ omap_mux_free_names(dst);
+ return -ENOMEM;
+
+}
+
+#endif /* CONFIG_OMAP_MUX */
+
+static u16 omap_mux_get_by_gpio(int gpio)
+{
+ struct omap_mux_entry *e;
+ u16 offset = OMAP_MUX_TERMINATOR;
+
+ list_for_each_entry(e, &muxmodes, node) {
+ struct omap_mux *m = &e->mux;
+ if (m->gpio == gpio) {
+ offset = m->reg_offset;
+ break;
+ }
+ }
+
+ return offset;
+}
+
+/* Needed for dynamic muxing of GPIO pins for off-idle */
+u16 omap_mux_get_gpio(int gpio)
+{
+ u16 offset;
+
+ offset = omap_mux_get_by_gpio(gpio);
+ if (offset == OMAP_MUX_TERMINATOR) {
+ printk(KERN_ERR "mux: Could not get gpio%i\n", gpio);
+ return offset;
+ }
+
+ return omap_mux_read(offset);
+}
+
+/* Needed for dynamic muxing of GPIO pins for off-idle */
+void omap_mux_set_gpio(u16 val, int gpio)
+{
+ u16 offset;
+
+ offset = omap_mux_get_by_gpio(gpio);
+ if (offset == OMAP_MUX_TERMINATOR) {
+ printk(KERN_ERR "mux: Could not set gpio%i\n", gpio);
+ return;
+ }
+
+ omap_mux_write(val, offset);
+}
+
+static struct omap_mux * __init omap_mux_list_add(struct omap_mux *src)
+{
+ struct omap_mux_entry *entry;
+ struct omap_mux *m;
+
+ entry = kzalloc(sizeof(struct omap_mux_entry), GFP_KERNEL);
+ if (!entry)
+ return NULL;
+
+ m = &entry->mux;
+ memcpy(m, src, sizeof(struct omap_mux_entry));
+
+#ifdef CONFIG_OMAP_MUX
+ if (omap_mux_copy_names(src, m)) {
+ kfree(entry);
+ return NULL;
+ }
+#endif
+
+ mutex_lock(&muxmode_mutex);
+ list_add_tail(&entry->node, &muxmodes);
+ mutex_unlock(&muxmode_mutex);
+
+ return m;
+}
+
+/*
+ * Note if CONFIG_OMAP_MUX is not selected, we will only initialize
+ * the GPIO to mux offset mapping that is needed for dynamic muxing
+ * of GPIO pins for off-idle.
+ */
+static void __init omap_mux_init_list(struct omap_mux *superset)
+{
+ while (superset->reg_offset != OMAP_MUX_TERMINATOR) {
+ struct omap_mux *entry;
+
+#ifdef CONFIG_OMAP_MUX
+ if (!superset->muxnames || !superset->muxnames[0]) {
+ superset++;
+ continue;
+ }
+#else
+ /* Skip pins that are not muxed as GPIO by bootloader */
+ if (!OMAP_MODE_GPIO(omap_mux_read(superset->reg_offset))) {
+ superset++;
+ continue;
+ }
+#endif
+
+ entry = omap_mux_list_add(superset);
+ if (!entry) {
+ printk(KERN_ERR "mux: Could not add entry\n");
+ return;
+ }
+ superset++;
}
+}
+
+#ifdef CONFIG_OMAP_MUX
+
+static void omap_mux_init_package(struct omap_mux *superset,
+ struct omap_mux *package_subset,
+ struct omap_ball *package_balls)
+{
+ if (package_subset)
+ omap_mux_package_fixup(package_subset, superset);
+ if (package_balls)
+ omap_mux_package_init_balls(package_balls, superset);
+}
- return omap_mux_register(&arch_mux_cfg);
+static void omap_mux_init_signals(struct omap_board_mux *board_mux)
+{
+ omap_mux_set_cmdline_signals();
+ omap_mux_write_array(board_mux);
+}
+
+#else
+
+static void omap_mux_init_package(struct omap_mux *superset,
+ struct omap_mux *package_subset,
+ struct omap_ball *package_balls)
+{
+}
+
+static void omap_mux_init_signals(struct omap_board_mux *board_mux)
+{
}
#endif
+
+int __init omap_mux_init(u32 mux_pbase, u32 mux_size,
+ struct omap_mux *superset,
+ struct omap_mux *package_subset,
+ struct omap_board_mux *board_mux,
+ struct omap_ball *package_balls)
+{
+ if (mux_base)
+ return -EBUSY;
+
+ mux_phys = mux_pbase;
+ mux_base = ioremap(mux_pbase, mux_size);
+ if (!mux_base) {
+ printk(KERN_ERR "mux: Could not ioremap\n");
+ return -ENODEV;
+ }
+
+ omap_mux_init_package(superset, package_subset, package_balls);
+ omap_mux_init_list(superset);
+ omap_mux_init_signals(board_mux);
+
+ return 0;
+}
+
+#endif /* CONFIG_ARCH_OMAP3 */
+
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