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ARM: dts: Fix bootloader version dependencies by muxing n900 smc91x pins 

Apparently some versions of nolo don't mux the all the necessary GPMC
pins for the smc91x probe to work properly. Let's fix this issue
by adding mux support for GPMC to the kernel.

Note that GPMC clk needs input enabled for OnenNAND to work.

Cc: Kevin Hilman <khilman@kernel.org>
Cc: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Tony Lindgren 2014-10-29 17:16:47 -07:00
parent cac7f24298
commit 9a894953a9
1 changed files with 29 additions and 0 deletions
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29
arch/arm/boot/dts/omap3-n900.dts
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@ -142,6 +142,33 @@
>;
};
gpmc_pins: pinmux_gpmc_pins {
pinctrl-single,pins = <
/* address lines */
OMAP3_CORE1_IOPAD(0x207a, PIN_OUTPUT | MUX_MODE0) /* gpmc_a1.gpmc_a1 */
OMAP3_CORE1_IOPAD(0x207c, PIN_OUTPUT | MUX_MODE0) /* gpmc_a2.gpmc_a2 */
OMAP3_CORE1_IOPAD(0x207e, PIN_OUTPUT | MUX_MODE0) /* gpmc_a3.gpmc_a3 */
/* data lines, gpmc_d0..d7 not muxable according to TRM */
OMAP3_CORE1_IOPAD(0x209e, PIN_INPUT | MUX_MODE0) /* gpmc_d8.gpmc_d8 */
OMAP3_CORE1_IOPAD(0x20a0, PIN_INPUT | MUX_MODE0) /* gpmc_d9.gpmc_d9 */
OMAP3_CORE1_IOPAD(0x20a2, PIN_INPUT | MUX_MODE0) /* gpmc_d10.gpmc_d10 */
OMAP3_CORE1_IOPAD(0x20a4, PIN_INPUT | MUX_MODE0) /* gpmc_d11.gpmc_d11 */
OMAP3_CORE1_IOPAD(0x20a6, PIN_INPUT | MUX_MODE0) /* gpmc_d12.gpmc_d12 */
OMAP3_CORE1_IOPAD(0x20a8, PIN_INPUT | MUX_MODE0) /* gpmc_d13.gpmc_d13 */
OMAP3_CORE1_IOPAD(0x20aa, PIN_INPUT | MUX_MODE0) /* gpmc_d14.gpmc_d14 */
OMAP3_CORE1_IOPAD(0x20ac, PIN_INPUT | MUX_MODE0) /* gpmc_d15.gpmc_d15 */
/*
* gpmc_ncs0, gpmc_nadv_ale, gpmc_noe, gpmc_nwe, gpmc_wait0 not muxable
* according to TRM. OneNAND seems to require PIN_INPUT on clock.
*/
OMAP3_CORE1_IOPAD(0x20b0, PIN_OUTPUT | MUX_MODE0) /* gpmc_ncs1.gpmc_ncs1 */
OMAP3_CORE1_IOPAD(0x20be, PIN_INPUT | MUX_MODE0) /* gpmc_clk.gpmc_clk */
>;
};
i2c1_pins: pinmux_i2c1_pins {
pinctrl-single,pins = <
0x18a (PIN_INPUT | MUX_MODE0) /* i2c1_scl */
@ -588,6 +615,8 @@
ranges = <0 0 0x04000000 0x10000000>; /* 256MB */
ranges = <0 0 0x01000000 0x01000000>, /* 16 MB for OneNAND */
<1 0 0x02000000 0x01000000>; /* 16 MB for smc91c96 */
pinctrl-names = "default";
pinctrl-0 = <&gpmc_pins>;
/* gpio-irq for dma: 65 */