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| author | Lennert Buytenhek <buytenh@wantstofly.org> | 2008-05-10 23:25:46 +0200 |
|---|---|---|
| committer | Lennert Buytenhek <buytenh@marvell.com> | 2008-06-22 22:44:47 +0200 |
| commit | 19cfd5c09f780ac870fd9d89201c4ebc0b22be81 (patch) | |
| tree | 655e4eb79d22a8e9a62676f6fc13391bf8de931f /arch/arm/mach-orion5x/db88f5281-setup.c | |
| parent | 386a048a1ea42ff9ac87ffa344c4c19a5cc59678 (diff) | |
| download | linux-19cfd5c09f780ac870fd9d89201c4ebc0b22be81.tar.gz linux-19cfd5c09f780ac870fd9d89201c4ebc0b22be81.tar.bz2 linux-19cfd5c09f780ac870fd9d89201c4ebc0b22be81.zip | |
[ARM] Orion: rework MPP handling
Instead of having board code poke directly into the MPP configuration
registers, and separately calling orion5x_gpio_set_valid_pins() to
indicate which MPP pins can be used as GPIO pins, introduce a helper
function for configuring the roles of each of the MPP pins, and have
that helper function handle gpio validity internally.
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Acked-by: Sylver Bruneau <sylver.bruneau@googlemail.com>
Acked-by: Russell King <linux@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-orion5x/db88f5281-setup.c')
| -rw-r--r-- | arch/arm/mach-orion5x/db88f5281-setup.c | 47 |
1 files changed, 27 insertions, 20 deletions
diff --git a/arch/arm/mach-orion5x/db88f5281-setup.c b/arch/arm/mach-orion5x/db88f5281-setup.c index eca76b3348bc..3fee400c81ab 100644 --- a/arch/arm/mach-orion5x/db88f5281-setup.c +++ b/arch/arm/mach-orion5x/db88f5281-setup.c @@ -27,6 +27,7 @@ #include <asm/arch/orion5x.h> #include <asm/plat-orion/orion_nand.h> #include "common.h" +#include "mpp.h" /***************************************************************************** * DB-88F5281 on board devices @@ -298,6 +299,30 @@ static struct i2c_board_info __initdata db88f5281_i2c_rtc = { /***************************************************************************** * General Setup ****************************************************************************/ +static struct orion5x_mpp_mode db88f5281_mpp_modes[] __initdata = { + { 0, MPP_GPIO }, /* USB Over Current */ + { 1, MPP_GPIO }, /* USB Vbat input */ + { 2, MPP_PCI_ARB }, /* PCI_REQn[2] */ + { 3, MPP_PCI_ARB }, /* PCI_GNTn[2] */ + { 4, MPP_PCI_ARB }, /* PCI_REQn[3] */ + { 5, MPP_PCI_ARB }, /* PCI_GNTn[3] */ + { 6, MPP_GPIO }, /* JP0, CON17.2 */ + { 7, MPP_GPIO }, /* JP1, CON17.1 */ + { 8, MPP_GPIO }, /* JP2, CON11.2 */ + { 9, MPP_GPIO }, /* JP3, CON11.3 */ + { 10, MPP_GPIO }, /* RTC int */ + { 11, MPP_GPIO }, /* Baud Rate Generator */ + { 12, MPP_GPIO }, /* PCI int 1 */ + { 13, MPP_GPIO }, /* PCI int 2 */ + { 14, MPP_NAND }, /* NAND_REn[2] */ + { 15, MPP_NAND }, /* NAND_WEn[2] */ + { 16, MPP_UART }, /* UART1_RX */ + { 17, MPP_UART }, /* UART1_TX */ + { 18, MPP_UART }, /* UART1_CTSn */ + { 19, MPP_UART }, /* UART1_RTSn */ + { -1 }, +}; + static void __init db88f5281_init(void) { /* @@ -305,26 +330,8 @@ static void __init db88f5281_init(void) */ orion5x_init(); - /* - * Setup Multiplexing Pins: - * MPP0: GPIO (USB Over Current) MPP1: GPIO (USB Vbat input) - * MPP2: PCI_REQn[2] MPP3: PCI_GNTn[2] - * MPP4: PCI_REQn[3] MPP5: PCI_GNTn[3] - * MPP6: GPIO (JP0, CON17.2) MPP7: GPIO (JP1, CON17.1) - * MPP8: GPIO (JP2, CON11.2) MPP9: GPIO (JP3, CON11.3) - * MPP10: GPIO (RTC int) MPP11: GPIO (Baud Rate Generator) - * MPP12: GPIO (PCI int 1) MPP13: GPIO (PCI int 2) - * MPP14: NAND_REn[2] MPP15: NAND_WEn[2] - * MPP16: UART1_RX MPP17: UART1_TX - * MPP18: UART1_CTS MPP19: UART1_RTS - * MPP-DEV: DEV_D[16:31] - */ - orion5x_write(MPP_0_7_CTRL, 0x00222203); - orion5x_write(MPP_8_15_CTRL, 0x44000000); - orion5x_write(MPP_16_19_CTRL, 0); - orion5x_write(MPP_DEV_CTRL, 0); - - orion5x_gpio_set_valid_pins(0x00003fc3); + orion5x_mpp_conf(db88f5281_mpp_modes); + orion5x_write(MPP_DEV_CTRL, 0); /* DEV_D[31:16] */ /* * Configure peripherals. |