[PATCH 3/4] pinctrl: rockchip: Add iomux-route switching support for rk3328

David Wu
2017-05-25T13:09:39Z

There are 8 IP blocks pin routes need to be switched, that are
uart2dbg, gmac-m1-optimized, pdm, spi, i2s2, card, tsp, cif.

Signed-off-by: David Wu <david.wu@rock-chips.com>
---
drivers/pinctrl/pinctrl-rockchip.c | 140 ++++++++++++++++++++++++++++++++++---
1 file changed, 130 insertions(+), 10 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index be4c16e..6eab4581 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -214,6 +214,21 @@ struct rockchip_pin_bank {
}, \
}

+#define PIN_BANK_IOMUX_FLAGS_ROUTE(id, pins, label, route, iom0, iom1, \
+ iom2, iom3) \
+ { \
+ .bank_num = id, \
+ .nr_pins = pins, \
+ .name = label, \
+ .route_mask = route, \
+ .iomux = { \
+ { .type = iom0, .offset = -1 }, \
+ { .type = iom1, .offset = -1 }, \
+ { .type = iom2, .offset = -1 }, \
+ { .type = iom3, .offset = -1 }, \
+ }, \
+ }
+
#define PIN_BANK_DRV_FLAGS(id, pins, label, type0, type1, type2, type3) \
{ \
.bank_num = id, \
@@ -772,6 +787,110 @@ static bool rk3228_set_mux_route(u8 bank_num, int pin,
return true;
}

+static const struct rockchip_mux_route_data rk3328_mux_route_data[] = {
+ {
+ /* uart2dbg_rxm0 */
+ .bank = 1,
+ .pin = 1,
+ .func = 2,
+ .route_offset = 0x50,
+ .route_val = BIT(16) | BIT(16 + 1),
+ }, {
+ /* uart2dbg_rxm1 */
+ .bank = 2,
+ .pin = 1,
+ .func = 1,
+ .route_offset = 0x50,
+ .route_val = BIT(16) | BIT(16 + 1) | BIT(0),
+ }, {
+ /* gmac-m1-optimized_rxd0 */
+ .bank = 1,
+ .pin = 11,
+ .func = 2,
+ .route_offset = 0x50,
+ .route_val = BIT(16 + 2) | BIT(16 + 10) | BIT(2) | BIT(10),
+ }, {
+ /* pdm_sdi0m0 */
+ .bank = 2,
+ .pin = 19,
+ .func = 2,
+ .route_offset = 0x50,
+ .route_val = BIT(16 + 3),
+ }, {
+ /* pdm_sdi0m1 */
+ .bank = 1,
+ .pin = 23,
+ .func = 3,
+ .route_offset = 0x50,
+ .route_val = BIT(16 + 3) | BIT(3),
+ }, {
+ /* spi_rxdm2 */
+ .bank = 3,
+ .pin = 2,
+ .func = 4,
+ .route_offset = 0x50,
+ .route_val = BIT(16 + 4) | BIT(16 + 5) | BIT(5),
+ }, {
+ /* i2s2_sdim0 */
+ .bank = 1,
+ .pin = 24,
+ .func = 1,
+ .route_offset = 0x50,
+ .route_val = BIT(16 + 6),
+ }, {
+ /* i2s2_sdim1 */
+ .bank = 3,
+ .pin = 2,
+ .func = 6,
+ .route_offset = 0x50,
+ .route_val = BIT(16 + 6) | BIT(6),
+ }, {
+ /* card_iom1 */
+ .bank = 2,
+ .pin = 22,
+ .func = 3,
+ .route_offset = 0x50,
+ .route_val = BIT(16 + 7) | BIT(7),
+ }, {
+ /* tsp_d5m1 */
+ .bank = 2,
+ .pin = 16,
+ .func = 3,
+ .route_offset = 0x50,
+ .route_val = BIT(16 + 8) | BIT(8),
+ }, {
+ /* cif_data5m1 */
+ .bank = 2,
+ .pin = 16,
+ .func = 4,
+ .route_offset = 0x50,
+ .route_val = BIT(16 + 9) | BIT(9),
+ },
+};
+
+static bool rk3328_set_mux_route(u8 bank_num, int pin, int mux,
+ u32 *reg, u32 *value)
+{
+ const struct rockchip_mux_route_data *data = NULL;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(rk3328_mux_route_data); i++)
+ if ((rk3328_mux_route_data[i].bank == bank_num) &&
+ (rk3328_mux_route_data[i].pin == pin) &&
+ (rk3328_mux_route_data[i].func == mux)) {
+ data = &rk3328_mux_route_data[i];
+ break;
+ }
+
+ if (!data)
+ return false;
+
+ *reg = data->route_offset;
+ *value = data->route_val;
+
+ return true;
+}
+
static int rockchip_get_mux(struct rockchip_pin_bank *bank, int pin)
{
struct rockchip_pinctrl *info = bank->drvdata;
@@ -3081,16 +3200,16 @@ static int rockchip_pinctrl_probe(struct platform_device *pdev)

static struct rockchip_pin_bank rk3328_pin_banks[] = {
PIN_BANK_IOMUX_FLAGS(0, 32, "gpio0", 0, 0, 0, 0),
- PIN_BANK_IOMUX_FLAGS(1, 32, "gpio1", 0, 0, 0, 0),
- PIN_BANK_IOMUX_FLAGS(2, 32, "gpio2", 0,
- IOMUX_WIDTH_3BIT | IOMUX_RECALCED,
- IOMUX_WIDTH_3BIT | IOMUX_RECALCED,
- 0),
- PIN_BANK_IOMUX_FLAGS(3, 32, "gpio3",
- IOMUX_WIDTH_3BIT,
- IOMUX_WIDTH_3BIT | IOMUX_RECALCED,
- 0,
- 0),
+ PIN_BANK_IOMUX_FLAGS_ROUTE(1, 32, "gpio1", 0x01800802, 0, 0, 0, 0),
+ PIN_BANK_IOMUX_FLAGS_ROUTE(2, 32, "gpio2", 0x00490002, 0,
+ IOMUX_WIDTH_3BIT | IOMUX_RECALCED,
+ IOMUX_WIDTH_3BIT | IOMUX_RECALCED,
+ 0),
+ PIN_BANK_IOMUX_FLAGS_ROUTE(3, 32, "gpio3", 0x00000004,
+ IOMUX_WIDTH_3BIT,
+ IOMUX_WIDTH_3BIT | IOMUX_RECALCED,
+ 0,
+ 0),
};

static struct rockchip_pin_ctrl rk3328_pin_ctrl = {
@@ -3103,6 +3222,7 @@ static int rockchip_pinctrl_probe(struct platform_device *pdev)
.drv_calc_reg = rk3228_calc_drv_reg_and_bit,
.iomux_recalc = rk3328_recalc_mux,
.schmitt_calc_reg = rk3328_calc_schmitt_reg_and_bit,
+ .iomux_route = rk3328_set_mux_route,
};

static struct rockchip_pin_bank rk3368_pin_banks[] = {
--
1.9.1