[PATCH 056/142] sh-pfc: sh73a0: Add bias (pull-up/down) pinconf support
Simon Horman
horms+renesas at verge.net.au
Mon Mar 18 07:05:52 EDT 2013
From: Laurent Pinchart <laurent.pinchart+renesas at ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas at ideasonboard.com>
Acked-by: Linus Walleij <linus.walleij at linaro.org>
---
drivers/pinctrl/sh-pfc/pfc-sh73a0.c | 351 ++++++++++++++++++++++++++++++++++-
1 file changed, 350 insertions(+), 1 deletion(-)
diff --git a/drivers/pinctrl/sh-pfc/pfc-sh73a0.c b/drivers/pinctrl/sh-pfc/pfc-sh73a0.c
index 3200fc2..f31adfc 100644
--- a/drivers/pinctrl/sh-pfc/pfc-sh73a0.c
+++ b/drivers/pinctrl/sh-pfc/pfc-sh73a0.c
@@ -18,10 +18,14 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include <linux/io.h>
#include <linux/kernel.h>
+#include <linux/pinctrl/pinconf-generic.h>
+
#include <mach/sh73a0.h>
#include <mach/irqs.h>
+#include "core.h"
#include "sh_pfc.h"
#define CPU_ALL_PORT(fn, pfx, sfx) \
@@ -1539,8 +1543,300 @@ static const pinmux_enum_t pinmux_data[] = {
PINMUX_DATA(FSIAISLD_PU_MARK, PORT55_FN1, PORT55_IN_PU),
};
+#define SH73A0_PIN(pin, cfgs) \
+ { \
+ .name = __stringify(PORT##pin), \
+ .enum_id = PORT##pin##_DATA, \
+ .configs = cfgs, \
+ }
+
+#define __I (SH_PFC_PIN_CFG_INPUT)
+#define __O (SH_PFC_PIN_CFG_OUTPUT)
+#define __IO (SH_PFC_PIN_CFG_INPUT | SH_PFC_PIN_CFG_OUTPUT)
+#define __PD (SH_PFC_PIN_CFG_PULL_DOWN)
+#define __PU (SH_PFC_PIN_CFG_PULL_UP)
+#define __PUD (SH_PFC_PIN_CFG_PULL_DOWN | SH_PFC_PIN_CFG_PULL_UP)
+
+#define SH73A0_PIN_I_PD(pin) SH73A0_PIN(pin, __I | __PD)
+#define SH73A0_PIN_I_PU(pin) SH73A0_PIN(pin, __I | __PU)
+#define SH73A0_PIN_I_PU_PD(pin) SH73A0_PIN(pin, __I | __PUD)
+#define SH73A0_PIN_IO(pin) SH73A0_PIN(pin, __IO)
+#define SH73A0_PIN_IO_PD(pin) SH73A0_PIN(pin, __IO | __PD)
+#define SH73A0_PIN_IO_PU(pin) SH73A0_PIN(pin, __IO | __PU)
+#define SH73A0_PIN_IO_PU_PD(pin) SH73A0_PIN(pin, __IO | __PUD)
+#define SH73A0_PIN_O(pin) SH73A0_PIN(pin, __O)
+
static struct sh_pfc_pin pinmux_pins[] = {
- GPIO_PORT_ALL(),
+ /* Table 25-1 (I/O and Pull U/D) */
+ SH73A0_PIN_I_PD(0),
+ SH73A0_PIN_I_PU(1),
+ SH73A0_PIN_I_PU(2),
+ SH73A0_PIN_I_PU(3),
+ SH73A0_PIN_I_PU(4),
+ SH73A0_PIN_I_PU(5),
+ SH73A0_PIN_I_PU(6),
+ SH73A0_PIN_I_PU(7),
+ SH73A0_PIN_I_PU(8),
+ SH73A0_PIN_I_PD(9),
+ SH73A0_PIN_I_PD(10),
+ SH73A0_PIN_I_PU_PD(11),
+ SH73A0_PIN_IO_PU_PD(12),
+ SH73A0_PIN_IO_PU_PD(13),
+ SH73A0_PIN_IO_PU_PD(14),
+ SH73A0_PIN_IO_PU_PD(15),
+ SH73A0_PIN_IO_PD(16),
+ SH73A0_PIN_IO_PD(17),
+ SH73A0_PIN_IO_PU(18),
+ SH73A0_PIN_IO_PU(19),
+ SH73A0_PIN_O(20),
+ SH73A0_PIN_O(21),
+ SH73A0_PIN_O(22),
+ SH73A0_PIN_O(23),
+ SH73A0_PIN_O(24),
+ SH73A0_PIN_I_PD(25),
+ SH73A0_PIN_I_PD(26),
+ SH73A0_PIN_IO_PU(27),
+ SH73A0_PIN_IO_PU(28),
+ SH73A0_PIN_IO_PD(29),
+ SH73A0_PIN_IO_PD(30),
+ SH73A0_PIN_IO_PU(31),
+ SH73A0_PIN_IO_PD(32),
+ SH73A0_PIN_I_PU_PD(33),
+ SH73A0_PIN_IO_PD(34),
+ SH73A0_PIN_I_PU_PD(35),
+ SH73A0_PIN_IO_PD(36),
+ SH73A0_PIN_IO(37),
+ SH73A0_PIN_O(38),
+ SH73A0_PIN_I_PU(39),
+ SH73A0_PIN_I_PU_PD(40),
+ SH73A0_PIN_O(41),
+ SH73A0_PIN_IO_PD(42),
+ SH73A0_PIN_IO_PU_PD(43),
+ SH73A0_PIN_IO_PU_PD(44),
+ SH73A0_PIN_IO_PD(45),
+ SH73A0_PIN_IO_PD(46),
+ SH73A0_PIN_IO_PD(47),
+ SH73A0_PIN_I_PD(48),
+ SH73A0_PIN_IO_PU_PD(49),
+ SH73A0_PIN_IO_PD(50),
+ SH73A0_PIN_IO_PD(51),
+ SH73A0_PIN_O(52),
+ SH73A0_PIN_IO_PU_PD(53),
+ SH73A0_PIN_IO_PU_PD(54),
+ SH73A0_PIN_IO_PD(55),
+ SH73A0_PIN_I_PU_PD(56),
+ SH73A0_PIN_IO(57),
+ SH73A0_PIN_IO(58),
+ SH73A0_PIN_IO(59),
+ SH73A0_PIN_IO(60),
+ SH73A0_PIN_IO(61),
+ SH73A0_PIN_IO_PD(62),
+ SH73A0_PIN_IO_PD(63),
+ SH73A0_PIN_IO_PU_PD(64),
+ SH73A0_PIN_IO_PD(65),
+ SH73A0_PIN_IO_PU_PD(66),
+ SH73A0_PIN_IO_PU_PD(67),
+ SH73A0_PIN_IO_PU_PD(68),
+ SH73A0_PIN_IO_PU_PD(69),
+ SH73A0_PIN_IO_PU_PD(70),
+ SH73A0_PIN_IO_PU_PD(71),
+ SH73A0_PIN_IO_PU_PD(72),
+ SH73A0_PIN_I_PU_PD(73),
+ SH73A0_PIN_IO_PU(74),
+ SH73A0_PIN_IO_PU(75),
+ SH73A0_PIN_IO_PU(76),
+ SH73A0_PIN_IO_PU(77),
+ SH73A0_PIN_IO_PU(78),
+ SH73A0_PIN_IO_PU(79),
+ SH73A0_PIN_IO_PU(80),
+ SH73A0_PIN_IO_PU(81),
+ SH73A0_PIN_IO_PU(82),
+ SH73A0_PIN_IO_PU(83),
+ SH73A0_PIN_IO_PU(84),
+ SH73A0_PIN_IO_PU(85),
+ SH73A0_PIN_IO_PU(86),
+ SH73A0_PIN_IO_PU(87),
+ SH73A0_PIN_IO_PU(88),
+ SH73A0_PIN_IO_PU(89),
+ SH73A0_PIN_O(90),
+ SH73A0_PIN_IO_PU(91),
+ SH73A0_PIN_O(92),
+ SH73A0_PIN_IO_PU(93),
+ SH73A0_PIN_O(94),
+ SH73A0_PIN_I_PU_PD(95),
+ SH73A0_PIN_IO(96),
+ SH73A0_PIN_IO(97),
+ SH73A0_PIN_IO(98),
+ SH73A0_PIN_I_PU(99),
+ SH73A0_PIN_O(100),
+ SH73A0_PIN_O(101),
+ SH73A0_PIN_I_PU(102),
+ SH73A0_PIN_IO_PD(103),
+ SH73A0_PIN_I_PU_PD(104),
+ SH73A0_PIN_I_PD(105),
+ SH73A0_PIN_I_PD(106),
+ SH73A0_PIN_I_PU_PD(107),
+ SH73A0_PIN_I_PU_PD(108),
+ SH73A0_PIN_IO_PD(109),
+ SH73A0_PIN_IO_PD(110),
+ SH73A0_PIN_IO_PU_PD(111),
+ SH73A0_PIN_IO_PU_PD(112),
+ SH73A0_PIN_IO_PU_PD(113),
+ SH73A0_PIN_IO_PD(114),
+ SH73A0_PIN_IO_PU(115),
+ SH73A0_PIN_IO_PU(116),
+ SH73A0_PIN_IO_PU_PD(117),
+ SH73A0_PIN_IO_PU_PD(118),
+ SH73A0_PIN_IO_PD(128),
+ SH73A0_PIN_IO_PD(129),
+ SH73A0_PIN_IO_PU_PD(130),
+ SH73A0_PIN_IO_PD(131),
+ SH73A0_PIN_IO_PD(132),
+ SH73A0_PIN_IO_PD(133),
+ SH73A0_PIN_IO_PU_PD(134),
+ SH73A0_PIN_IO_PU_PD(135),
+ SH73A0_PIN_IO_PU_PD(136),
+ SH73A0_PIN_IO_PU_PD(137),
+ SH73A0_PIN_IO_PD(138),
+ SH73A0_PIN_IO_PD(139),
+ SH73A0_PIN_IO_PD(140),
+ SH73A0_PIN_IO_PD(141),
+ SH73A0_PIN_IO_PD(142),
+ SH73A0_PIN_IO_PD(143),
+ SH73A0_PIN_IO_PU_PD(144),
+ SH73A0_PIN_IO_PD(145),
+ SH73A0_PIN_IO_PU_PD(146),
+ SH73A0_PIN_IO_PU_PD(147),
+ SH73A0_PIN_IO_PU_PD(148),
+ SH73A0_PIN_IO_PU_PD(149),
+ SH73A0_PIN_I_PU_PD(150),
+ SH73A0_PIN_IO_PU_PD(151),
+ SH73A0_PIN_IO_PU_PD(152),
+ SH73A0_PIN_IO_PD(153),
+ SH73A0_PIN_IO_PD(154),
+ SH73A0_PIN_I_PU_PD(155),
+ SH73A0_PIN_IO_PU_PD(156),
+ SH73A0_PIN_I_PD(157),
+ SH73A0_PIN_IO_PD(158),
+ SH73A0_PIN_IO_PU_PD(159),
+ SH73A0_PIN_IO_PU_PD(160),
+ SH73A0_PIN_I_PU_PD(161),
+ SH73A0_PIN_I_PU_PD(162),
+ SH73A0_PIN_IO_PU_PD(163),
+ SH73A0_PIN_I_PU_PD(164),
+ SH73A0_PIN_IO_PD(192),
+ SH73A0_PIN_IO_PU_PD(193),
+ SH73A0_PIN_IO_PD(194),
+ SH73A0_PIN_IO_PU_PD(195),
+ SH73A0_PIN_IO_PD(196),
+ SH73A0_PIN_IO_PD(197),
+ SH73A0_PIN_IO_PD(198),
+ SH73A0_PIN_IO_PD(199),
+ SH73A0_PIN_IO_PU_PD(200),
+ SH73A0_PIN_IO_PU_PD(201),
+ SH73A0_PIN_IO_PU_PD(202),
+ SH73A0_PIN_IO_PU_PD(203),
+ SH73A0_PIN_IO_PU_PD(204),
+ SH73A0_PIN_IO_PU_PD(205),
+ SH73A0_PIN_IO_PU_PD(206),
+ SH73A0_PIN_IO_PD(207),
+ SH73A0_PIN_IO_PD(208),
+ SH73A0_PIN_IO_PD(209),
+ SH73A0_PIN_IO_PD(210),
+ SH73A0_PIN_IO_PD(211),
+ SH73A0_PIN_IO_PD(212),
+ SH73A0_PIN_IO_PD(213),
+ SH73A0_PIN_IO_PU_PD(214),
+ SH73A0_PIN_IO_PU_PD(215),
+ SH73A0_PIN_IO_PD(216),
+ SH73A0_PIN_IO_PD(217),
+ SH73A0_PIN_O(218),
+ SH73A0_PIN_IO_PD(219),
+ SH73A0_PIN_IO_PD(220),
+ SH73A0_PIN_IO_PU_PD(221),
+ SH73A0_PIN_IO_PU_PD(222),
+ SH73A0_PIN_I_PU_PD(223),
+ SH73A0_PIN_I_PU_PD(224),
+ SH73A0_PIN_IO_PU_PD(225),
+ SH73A0_PIN_O(226),
+ SH73A0_PIN_IO_PU_PD(227),
+ SH73A0_PIN_I_PU_PD(228),
+ SH73A0_PIN_I_PD(229),
+ SH73A0_PIN_IO(230),
+ SH73A0_PIN_IO_PU_PD(231),
+ SH73A0_PIN_IO_PU_PD(232),
+ SH73A0_PIN_I_PU_PD(233),
+ SH73A0_PIN_IO_PU_PD(234),
+ SH73A0_PIN_IO_PU_PD(235),
+ SH73A0_PIN_IO_PU_PD(236),
+ SH73A0_PIN_IO_PD(237),
+ SH73A0_PIN_IO_PU_PD(238),
+ SH73A0_PIN_IO_PU_PD(239),
+ SH73A0_PIN_IO_PU_PD(240),
+ SH73A0_PIN_O(241),
+ SH73A0_PIN_I_PD(242),
+ SH73A0_PIN_IO_PU_PD(243),
+ SH73A0_PIN_IO_PU_PD(244),
+ SH73A0_PIN_IO_PU_PD(245),
+ SH73A0_PIN_IO_PU_PD(246),
+ SH73A0_PIN_IO_PU_PD(247),
+ SH73A0_PIN_IO_PU_PD(248),
+ SH73A0_PIN_IO_PU_PD(249),
+ SH73A0_PIN_IO_PU_PD(250),
+ SH73A0_PIN_IO_PU_PD(251),
+ SH73A0_PIN_IO_PU_PD(252),
+ SH73A0_PIN_IO_PU_PD(253),
+ SH73A0_PIN_IO_PU_PD(254),
+ SH73A0_PIN_IO_PU_PD(255),
+ SH73A0_PIN_IO_PU_PD(256),
+ SH73A0_PIN_IO_PU_PD(257),
+ SH73A0_PIN_IO_PU_PD(258),
+ SH73A0_PIN_IO_PU_PD(259),
+ SH73A0_PIN_IO_PU_PD(260),
+ SH73A0_PIN_IO_PU_PD(261),
+ SH73A0_PIN_IO_PU_PD(262),
+ SH73A0_PIN_IO_PU_PD(263),
+ SH73A0_PIN_IO_PU_PD(264),
+ SH73A0_PIN_IO_PU_PD(265),
+ SH73A0_PIN_IO_PU_PD(266),
+ SH73A0_PIN_IO_PU_PD(267),
+ SH73A0_PIN_IO_PU_PD(268),
+ SH73A0_PIN_IO_PU_PD(269),
+ SH73A0_PIN_IO_PU_PD(270),
+ SH73A0_PIN_IO_PU_PD(271),
+ SH73A0_PIN_IO_PU_PD(272),
+ SH73A0_PIN_IO_PU_PD(273),
+ SH73A0_PIN_IO_PU_PD(274),
+ SH73A0_PIN_IO_PU_PD(275),
+ SH73A0_PIN_IO_PU_PD(276),
+ SH73A0_PIN_IO_PU_PD(277),
+ SH73A0_PIN_IO_PU_PD(278),
+ SH73A0_PIN_IO_PU_PD(279),
+ SH73A0_PIN_IO_PU_PD(280),
+ SH73A0_PIN_O(281),
+ SH73A0_PIN_O(282),
+ SH73A0_PIN_I_PU(288),
+ SH73A0_PIN_IO_PU_PD(289),
+ SH73A0_PIN_IO_PU_PD(290),
+ SH73A0_PIN_IO_PU_PD(291),
+ SH73A0_PIN_IO_PU_PD(292),
+ SH73A0_PIN_IO_PU_PD(293),
+ SH73A0_PIN_IO_PU_PD(294),
+ SH73A0_PIN_IO_PU_PD(295),
+ SH73A0_PIN_IO_PU_PD(296),
+ SH73A0_PIN_IO_PU_PD(297),
+ SH73A0_PIN_IO_PU_PD(298),
+ SH73A0_PIN_IO_PU_PD(299),
+ SH73A0_PIN_IO_PU_PD(300),
+ SH73A0_PIN_IO_PU_PD(301),
+ SH73A0_PIN_IO_PU_PD(302),
+ SH73A0_PIN_IO_PU_PD(303),
+ SH73A0_PIN_IO_PU_PD(304),
+ SH73A0_PIN_IO_PU_PD(305),
+ SH73A0_PIN_O(306),
+ SH73A0_PIN_O(307),
+ SH73A0_PIN_I_PU(308),
+ SH73A0_PIN_O(309),
};
static const struct pinmux_range pinmux_ranges[] = {
@@ -2779,8 +3075,61 @@ static const struct pinmux_irq pinmux_irqs[] = {
PINMUX_IRQ(EXT_IRQ16L(9), 308),
};
+#define PORTnCR_PULMD_OFF (0 << 6)
+#define PORTnCR_PULMD_DOWN (2 << 6)
+#define PORTnCR_PULMD_UP (3 << 6)
+#define PORTnCR_PULMD_MASK (3 << 6)
+
+static const unsigned int sh73a0_portcr_offsets[] = {
+ 0x00000000, 0x00001000, 0x00001000, 0x00002000, 0x00002000,
+ 0x00002000, 0x00002000, 0x00003000, 0x00003000, 0x00002000,
+};
+
+static unsigned int sh73a0_pinmux_get_bias(struct sh_pfc *pfc, unsigned int pin)
+{
+ void __iomem *addr = pfc->window->virt
+ + sh73a0_portcr_offsets[pin >> 5] + pin;
+ u32 value = ioread8(addr) & PORTnCR_PULMD_MASK;
+
+ switch (value) {
+ case PORTnCR_PULMD_UP:
+ return PIN_CONFIG_BIAS_PULL_UP;
+ case PORTnCR_PULMD_DOWN:
+ return PIN_CONFIG_BIAS_PULL_DOWN;
+ case PORTnCR_PULMD_OFF:
+ default:
+ return PIN_CONFIG_BIAS_DISABLE;
+ }
+}
+
+static void sh73a0_pinmux_set_bias(struct sh_pfc *pfc, unsigned int pin,
+ unsigned int bias)
+{
+ void __iomem *addr = pfc->window->virt
+ + sh73a0_portcr_offsets[pin >> 5] + pin;
+ u32 value = ioread8(addr) & ~PORTnCR_PULMD_MASK;
+
+ switch (bias) {
+ case PIN_CONFIG_BIAS_PULL_UP:
+ value |= PORTnCR_PULMD_UP;
+ break;
+ case PIN_CONFIG_BIAS_PULL_DOWN:
+ value |= PORTnCR_PULMD_DOWN;
+ break;
+ }
+
+ iowrite8(value, addr);
+}
+
+static const struct sh_pfc_soc_operations sh73a0_pinmux_ops = {
+ .get_bias = sh73a0_pinmux_get_bias,
+ .set_bias = sh73a0_pinmux_set_bias,
+};
+
const struct sh_pfc_soc_info sh73a0_pinmux_info = {
.name = "sh73a0_pfc",
+ .ops = &sh73a0_pinmux_ops,
+
.input = { PINMUX_INPUT_BEGIN, PINMUX_INPUT_END },
.input_pu = { PINMUX_INPUT_PULLUP_BEGIN, PINMUX_INPUT_PULLUP_END },
.input_pd = { PINMUX_INPUT_PULLDOWN_BEGIN, PINMUX_INPUT_PULLDOWN_END },
--
1.7.10.4
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