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-rw-r--r--arch/arm/mach-mxs/mach-mxs.c408
1 files changed, 375 insertions, 33 deletions
diff --git a/arch/arm/mach-mxs/mach-mxs.c b/arch/arm/mach-mxs/mach-mxs.c
index 8cac94b3302..c66129b5dd1 100644
--- a/arch/arm/mach-mxs/mach-mxs.c
+++ b/arch/arm/mach-mxs/mach-mxs.c
@@ -12,47 +12,152 @@
#include <linux/clk.h>
#include <linux/clkdev.h>
+#include <linux/can/platform/flexcan.h>
+#include <linux/delay.h>
#include <linux/err.h>
+#include <linux/gpio.h>
#include <linux/init.h>
-#include <linux/init.h>
-#include <linux/irqdomain.h>
-#include <linux/of_irq.h>
+#include <linux/micrel_phy.h>
+#include <linux/mxsfb.h>
#include <linux/of_platform.h>
+#include <linux/phy.h>
+#include <linux/pinctrl/consumer.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <mach/common.h>
+#include <mach/digctl.h>
+#include <mach/mxs.h>
-static int __init mxs_icoll_add_irq_domain(struct device_node *np,
- struct device_node *interrupt_parent)
-{
- irq_domain_add_legacy(np, 128, 0, 0, &irq_domain_simple_ops, NULL);
+static struct fb_videomode mx23evk_video_modes[] = {
+ {
+ .name = "Samsung-LMS430HF02",
+ .refresh = 60,
+ .xres = 480,
+ .yres = 272,
+ .pixclock = 108096, /* picosecond (9.2 MHz) */
+ .left_margin = 15,
+ .right_margin = 8,
+ .upper_margin = 12,
+ .lower_margin = 4,
+ .hsync_len = 1,
+ .vsync_len = 1,
+ .sync = FB_SYNC_DATA_ENABLE_HIGH_ACT |
+ FB_SYNC_DOTCLK_FAILING_ACT,
+ },
+};
- return 0;
-}
+static struct fb_videomode mx28evk_video_modes[] = {
+ {
+ .name = "Seiko-43WVF1G",
+ .refresh = 60,
+ .xres = 800,
+ .yres = 480,
+ .pixclock = 29851, /* picosecond (33.5 MHz) */
+ .left_margin = 89,
+ .right_margin = 164,
+ .upper_margin = 23,
+ .lower_margin = 10,
+ .hsync_len = 10,
+ .vsync_len = 10,
+ .sync = FB_SYNC_DATA_ENABLE_HIGH_ACT |
+ FB_SYNC_DOTCLK_FAILING_ACT,
+ },
+};
-static int __init mxs_gpio_add_irq_domain(struct device_node *np,
- struct device_node *interrupt_parent)
-{
- static int gpio_irq_base = MXS_GPIO_IRQ_START;
+static struct fb_videomode m28evk_video_modes[] = {
+ {
+ .name = "Ampire AM-800480R2TMQW-T01H",
+ .refresh = 60,
+ .xres = 800,
+ .yres = 480,
+ .pixclock = 30066, /* picosecond (33.26 MHz) */
+ .left_margin = 0,
+ .right_margin = 256,
+ .upper_margin = 0,
+ .lower_margin = 45,
+ .hsync_len = 1,
+ .vsync_len = 1,
+ .sync = FB_SYNC_DATA_ENABLE_HIGH_ACT,
+ },
+};
+
+static struct fb_videomode apx4devkit_video_modes[] = {
+ {
+ .name = "HannStar PJ70112A",
+ .refresh = 60,
+ .xres = 800,
+ .yres = 480,
+ .pixclock = 33333, /* picosecond (30.00 MHz) */
+ .left_margin = 88,
+ .right_margin = 40,
+ .upper_margin = 32,
+ .lower_margin = 13,
+ .hsync_len = 48,
+ .vsync_len = 3,
+ .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT |
+ FB_SYNC_DATA_ENABLE_HIGH_ACT |
+ FB_SYNC_DOTCLK_FAILING_ACT,
+ },
+};
- irq_domain_add_legacy(np, 32, gpio_irq_base, 0, &irq_domain_simple_ops, NULL);
- gpio_irq_base += 32;
+static struct fb_videomode apf28dev_video_modes[] = {
+ {
+ .name = "LW700",
+ .refresh = 60,
+ .xres = 800,
+ .yres = 480,
+ .pixclock = 30303, /* picosecond */
+ .left_margin = 96,
+ .right_margin = 96, /* at least 3 & 1 */
+ .upper_margin = 0x14,
+ .lower_margin = 0x15,
+ .hsync_len = 64,
+ .vsync_len = 4,
+ .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT |
+ FB_SYNC_DATA_ENABLE_HIGH_ACT |
+ FB_SYNC_DOTCLK_FAILING_ACT,
+ },
+};
- return 0;
+static struct mxsfb_platform_data mxsfb_pdata __initdata;
+
+/*
+ * MX28EVK_FLEXCAN_SWITCH is shared between both flexcan controllers
+ */
+#define MX28EVK_FLEXCAN_SWITCH MXS_GPIO_NR(2, 13)
+
+static int flexcan0_en, flexcan1_en;
+
+static void mx28evk_flexcan_switch(void)
+{
+ if (flexcan0_en || flexcan1_en)
+ gpio_set_value(MX28EVK_FLEXCAN_SWITCH, 1);
+ else
+ gpio_set_value(MX28EVK_FLEXCAN_SWITCH, 0);
}
-static const struct of_device_id mxs_irq_match[] __initconst = {
- { .compatible = "fsl,mxs-icoll", .data = mxs_icoll_add_irq_domain, },
- { .compatible = "fsl,mxs-gpio", .data = mxs_gpio_add_irq_domain, },
- { /* sentinel */ }
-};
+static void mx28evk_flexcan0_switch(int enable)
+{
+ flexcan0_en = enable;
+ mx28evk_flexcan_switch();
+}
-static void __init mxs_dt_init_irq(void)
+static void mx28evk_flexcan1_switch(int enable)
{
- icoll_init_irq();
- of_irq_init(mxs_irq_match);
+ flexcan1_en = enable;
+ mx28evk_flexcan_switch();
}
+static struct flexcan_platform_data flexcan_pdata[2];
+
+static struct of_dev_auxdata mxs_auxdata_lookup[] __initdata = {
+ OF_DEV_AUXDATA("fsl,imx23-lcdif", 0x80030000, NULL, &mxsfb_pdata),
+ OF_DEV_AUXDATA("fsl,imx28-lcdif", 0x80030000, NULL, &mxsfb_pdata),
+ OF_DEV_AUXDATA("fsl,imx28-flexcan", 0x80032000, NULL, &flexcan_pdata[0]),
+ OF_DEV_AUXDATA("fsl,imx28-flexcan", 0x80034000, NULL, &flexcan_pdata[1]),
+ { /* sentinel */ }
+};
+
static void __init imx23_timer_init(void)
{
mx23_clocks_init();
@@ -71,40 +176,276 @@ static struct sys_timer imx28_timer = {
.init = imx28_timer_init,
};
-static void __init imx28_evk_init(void)
+enum mac_oui {
+ OUI_FSL,
+ OUI_DENX,
+ OUI_CRYSTALFONTZ,
+};
+
+static void __init update_fec_mac_prop(enum mac_oui oui)
{
- struct clk *clk;
+ struct device_node *np, *from = NULL;
+ struct property *newmac;
+ const u32 *ocotp = mxs_get_ocotp();
+ u8 *macaddr;
+ u32 val;
+ int i;
+
+ for (i = 0; i < 2; i++) {
+ np = of_find_compatible_node(from, NULL, "fsl,imx28-fec");
+ if (!np)
+ return;
+
+ from = np;
+
+ if (of_get_property(np, "local-mac-address", NULL))
+ continue;
+
+ newmac = kzalloc(sizeof(*newmac) + 6, GFP_KERNEL);
+ if (!newmac)
+ return;
+ newmac->value = newmac + 1;
+ newmac->length = 6;
+
+ newmac->name = kstrdup("local-mac-address", GFP_KERNEL);
+ if (!newmac->name) {
+ kfree(newmac);
+ return;
+ }
+
+ /*
+ * OCOTP only stores the last 4 octets for each mac address,
+ * so hard-code OUI here.
+ */
+ macaddr = newmac->value;
+ switch (oui) {
+ case OUI_FSL:
+ macaddr[0] = 0x00;
+ macaddr[1] = 0x04;
+ macaddr[2] = 0x9f;
+ break;
+ case OUI_DENX:
+ macaddr[0] = 0xc0;
+ macaddr[1] = 0xe5;
+ macaddr[2] = 0x4e;
+ break;
+ case OUI_CRYSTALFONTZ:
+ macaddr[0] = 0x58;
+ macaddr[1] = 0xb9;
+ macaddr[2] = 0xe1;
+ break;
+ }
+ val = ocotp[i];
+ macaddr[3] = (val >> 16) & 0xff;
+ macaddr[4] = (val >> 8) & 0xff;
+ macaddr[5] = (val >> 0) & 0xff;
+
+ of_update_property(np, newmac);
+ }
+}
+
+static void __init imx23_evk_init(void)
+{
+ mxsfb_pdata.mode_list = mx23evk_video_modes;
+ mxsfb_pdata.mode_count = ARRAY_SIZE(mx23evk_video_modes);
+ mxsfb_pdata.default_bpp = 32;
+ mxsfb_pdata.ld_intf_width = STMLCDIF_24BIT;
+}
+
+static inline void enable_clk_enet_out(void)
+{
+ struct clk *clk = clk_get_sys("enet_out", NULL);
- /* Enable fec phy clock */
- clk = clk_get_sys("enet_out", NULL);
if (!IS_ERR(clk))
clk_prepare_enable(clk);
}
+static void __init imx28_evk_init(void)
+{
+ enable_clk_enet_out();
+ update_fec_mac_prop(OUI_FSL);
+
+ mxsfb_pdata.mode_list = mx28evk_video_modes;
+ mxsfb_pdata.mode_count = ARRAY_SIZE(mx28evk_video_modes);
+ mxsfb_pdata.default_bpp = 32;
+ mxsfb_pdata.ld_intf_width = STMLCDIF_24BIT;
+
+ mxs_saif_clkmux_select(MXS_DIGCTL_SAIF_CLKMUX_EXTMSTR0);
+}
+
+static void __init imx28_evk_post_init(void)
+{
+ if (!gpio_request_one(MX28EVK_FLEXCAN_SWITCH, GPIOF_DIR_OUT,
+ "flexcan-switch")) {
+ flexcan_pdata[0].transceiver_switch = mx28evk_flexcan0_switch;
+ flexcan_pdata[1].transceiver_switch = mx28evk_flexcan1_switch;
+ }
+}
+
+static void __init m28evk_init(void)
+{
+ mxsfb_pdata.mode_list = m28evk_video_modes;
+ mxsfb_pdata.mode_count = ARRAY_SIZE(m28evk_video_modes);
+ mxsfb_pdata.default_bpp = 16;
+ mxsfb_pdata.ld_intf_width = STMLCDIF_18BIT;
+}
+
+static void __init sc_sps1_init(void)
+{
+ enable_clk_enet_out();
+}
+
+static int apx4devkit_phy_fixup(struct phy_device *phy)
+{
+ phy->dev_flags |= MICREL_PHY_50MHZ_CLK;
+ return 0;
+}
+
+static void __init apx4devkit_init(void)
+{
+ enable_clk_enet_out();
+
+ if (IS_BUILTIN(CONFIG_PHYLIB))
+ phy_register_fixup_for_uid(PHY_ID_KSZ8051, MICREL_PHY_ID_MASK,
+ apx4devkit_phy_fixup);
+
+ mxsfb_pdata.mode_list = apx4devkit_video_modes;
+ mxsfb_pdata.mode_count = ARRAY_SIZE(apx4devkit_video_modes);
+ mxsfb_pdata.default_bpp = 32;
+ mxsfb_pdata.ld_intf_width = STMLCDIF_24BIT;
+}
+
+#define ENET0_MDC__GPIO_4_0 MXS_GPIO_NR(4, 0)
+#define ENET0_MDIO__GPIO_4_1 MXS_GPIO_NR(4, 1)
+#define ENET0_RX_EN__GPIO_4_2 MXS_GPIO_NR(4, 2)
+#define ENET0_RXD0__GPIO_4_3 MXS_GPIO_NR(4, 3)
+#define ENET0_RXD1__GPIO_4_4 MXS_GPIO_NR(4, 4)
+#define ENET0_TX_EN__GPIO_4_6 MXS_GPIO_NR(4, 6)
+#define ENET0_TXD0__GPIO_4_7 MXS_GPIO_NR(4, 7)
+#define ENET0_TXD1__GPIO_4_8 MXS_GPIO_NR(4, 8)
+#define ENET_CLK__GPIO_4_16 MXS_GPIO_NR(4, 16)
+
+#define TX28_FEC_PHY_POWER MXS_GPIO_NR(3, 29)
+#define TX28_FEC_PHY_RESET MXS_GPIO_NR(4, 13)
+#define TX28_FEC_nINT MXS_GPIO_NR(4, 5)
+
+static const struct gpio tx28_gpios[] __initconst = {
+ { ENET0_MDC__GPIO_4_0, GPIOF_OUT_INIT_LOW, "GPIO_4_0" },
+ { ENET0_MDIO__GPIO_4_1, GPIOF_OUT_INIT_LOW, "GPIO_4_1" },
+ { ENET0_RX_EN__GPIO_4_2, GPIOF_OUT_INIT_LOW, "GPIO_4_2" },
+ { ENET0_RXD0__GPIO_4_3, GPIOF_OUT_INIT_LOW, "GPIO_4_3" },
+ { ENET0_RXD1__GPIO_4_4, GPIOF_OUT_INIT_LOW, "GPIO_4_4" },
+ { ENET0_TX_EN__GPIO_4_6, GPIOF_OUT_INIT_LOW, "GPIO_4_6" },
+ { ENET0_TXD0__GPIO_4_7, GPIOF_OUT_INIT_LOW, "GPIO_4_7" },
+ { ENET0_TXD1__GPIO_4_8, GPIOF_OUT_INIT_LOW, "GPIO_4_8" },
+ { ENET_CLK__GPIO_4_16, GPIOF_OUT_INIT_LOW, "GPIO_4_16" },
+ { TX28_FEC_PHY_POWER, GPIOF_OUT_INIT_LOW, "fec-phy-power" },
+ { TX28_FEC_PHY_RESET, GPIOF_OUT_INIT_LOW, "fec-phy-reset" },
+ { TX28_FEC_nINT, GPIOF_DIR_IN, "fec-int" },
+};
+
+static void __init tx28_post_init(void)
+{
+ struct device_node *np;
+ struct platform_device *pdev;
+ struct pinctrl *pctl;
+ int ret;
+
+ enable_clk_enet_out();
+
+ np = of_find_compatible_node(NULL, NULL, "fsl,imx28-fec");
+ pdev = of_find_device_by_node(np);
+ if (!pdev) {
+ pr_err("%s: failed to find fec device\n", __func__);
+ return;
+ }
+
+ pctl = pinctrl_get_select(&pdev->dev, "gpio_mode");
+ if (IS_ERR(pctl)) {
+ pr_err("%s: failed to get pinctrl state\n", __func__);
+ return;
+ }
+
+ ret = gpio_request_array(tx28_gpios, ARRAY_SIZE(tx28_gpios));
+ if (ret) {
+ pr_err("%s: failed to request gpios: %d\n", __func__, ret);
+ return;
+ }
+
+ /* Power up fec phy */
+ gpio_set_value(TX28_FEC_PHY_POWER, 1);
+ msleep(26); /* 25ms according to data sheet */
+
+ /* Mode strap pins */
+ gpio_set_value(ENET0_RX_EN__GPIO_4_2, 1);
+ gpio_set_value(ENET0_RXD0__GPIO_4_3, 1);
+ gpio_set_value(ENET0_RXD1__GPIO_4_4, 1);
+
+ udelay(100); /* minimum assertion time for nRST */
+
+ /* Deasserting FEC PHY RESET */
+ gpio_set_value(TX28_FEC_PHY_RESET, 1);
+
+ pinctrl_put(pctl);
+}
+
+static void __init cfa10049_init(void)
+{
+ enable_clk_enet_out();
+ update_fec_mac_prop(OUI_CRYSTALFONTZ);
+}
+
+static void __init apf28_init(void)
+{
+ enable_clk_enet_out();
+
+ mxsfb_pdata.mode_list = apf28dev_video_modes;
+ mxsfb_pdata.mode_count = ARRAY_SIZE(apf28dev_video_modes);
+ mxsfb_pdata.default_bpp = 16;
+ mxsfb_pdata.ld_intf_width = STMLCDIF_16BIT;
+}
+
static void __init mxs_machine_init(void)
{
if (of_machine_is_compatible("fsl,imx28-evk"))
imx28_evk_init();
+ else if (of_machine_is_compatible("fsl,imx23-evk"))
+ imx23_evk_init();
+ else if (of_machine_is_compatible("denx,m28evk"))
+ m28evk_init();
+ else if (of_machine_is_compatible("bluegiga,apx4devkit"))
+ apx4devkit_init();
+ else if (of_machine_is_compatible("crystalfontz,cfa10049"))
+ cfa10049_init();
+ else if (of_machine_is_compatible("armadeus,imx28-apf28"))
+ apf28_init();
+ else if (of_machine_is_compatible("schulercontrol,imx28-sps1"))
+ sc_sps1_init();
of_platform_populate(NULL, of_default_bus_match_table,
- NULL, NULL);
+ mxs_auxdata_lookup, NULL);
+
+ if (of_machine_is_compatible("karo,tx28"))
+ tx28_post_init();
+
+ if (of_machine_is_compatible("fsl,imx28-evk"))
+ imx28_evk_post_init();
}
static const char *imx23_dt_compat[] __initdata = {
- "fsl,imx23-evk",
"fsl,imx23",
NULL,
};
static const char *imx28_dt_compat[] __initdata = {
- "fsl,imx28-evk",
"fsl,imx28",
NULL,
};
DT_MACHINE_START(IMX23, "Freescale i.MX23 (Device Tree)")
.map_io = mx23_map_io,
- .init_irq = mxs_dt_init_irq,
+ .init_irq = icoll_init_irq,
+ .handle_irq = icoll_handle_irq,
.timer = &imx23_timer,
.init_machine = mxs_machine_init,
.dt_compat = imx23_dt_compat,
@@ -113,7 +454,8 @@ MACHINE_END
DT_MACHINE_START(IMX28, "Freescale i.MX28 (Device Tree)")
.map_io = mx28_map_io,
- .init_irq = mxs_dt_init_irq,
+ .init_irq = icoll_init_irq,
+ .handle_irq = icoll_handle_irq,
.timer = &imx28_timer,
.init_machine = mxs_machine_init,
.dt_compat = imx28_dt_compat,