2 * Copyright 2012 Freescale Semiconductor, Inc.
3 * Copyright 2012 Linaro Ltd.
5 * The code contained herein is licensed under the GNU General Public
6 * License. You may obtain a copy of the GNU General Public License
7 * Version 2 or later at the following locations:
9 * http://www.opensource.org/licenses/gpl-license.html
10 * http://www.gnu.org/copyleft/gpl.html
13 #include <linux/clk.h>
14 #include <linux/clkdev.h>
15 #include <linux/err.h>
16 #include <linux/init.h>
17 #include <linux/init.h>
18 #include <linux/irqdomain.h>
19 #include <linux/micrel_phy.h>
20 #include <linux/mxsfb.h>
21 #include <linux/of_irq.h>
22 #include <linux/of_platform.h>
23 #include <linux/phy.h>
24 #include <asm/mach/arch.h>
25 #include <asm/mach/time.h>
26 #include <mach/common.h>
28 static struct fb_videomode mx23evk_video_modes[] = {
30 .name = "Samsung-LMS430HF02",
34 .pixclock = 108096, /* picosecond (9.2 MHz) */
41 .sync = FB_SYNC_DATA_ENABLE_HIGH_ACT |
42 FB_SYNC_DOTCLK_FAILING_ACT,
46 static struct fb_videomode mx28evk_video_modes[] = {
48 .name = "Seiko-43WVF1G",
52 .pixclock = 29851, /* picosecond (33.5 MHz) */
59 .sync = FB_SYNC_DATA_ENABLE_HIGH_ACT |
60 FB_SYNC_DOTCLK_FAILING_ACT,
64 static struct fb_videomode m28evk_video_modes[] = {
66 .name = "Ampire AM-800480R2TMQW-T01H",
70 .pixclock = 30066, /* picosecond (33.26 MHz) */
77 .sync = FB_SYNC_DATA_ENABLE_HIGH_ACT,
81 static struct fb_videomode apx4devkit_video_modes[] = {
83 .name = "HannStar PJ70112A",
87 .pixclock = 33333, /* picosecond (30.00 MHz) */
94 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT |
95 FB_SYNC_DATA_ENABLE_HIGH_ACT |
96 FB_SYNC_DOTCLK_FAILING_ACT,
100 static struct mxsfb_platform_data mxsfb_pdata __initdata;
102 static struct of_dev_auxdata mxs_auxdata_lookup[] __initdata = {
103 OF_DEV_AUXDATA("fsl,imx23-lcdif", 0x80030000, NULL, &mxsfb_pdata),
104 OF_DEV_AUXDATA("fsl,imx28-lcdif", 0x80030000, NULL, &mxsfb_pdata),
108 static int __init mxs_icoll_add_irq_domain(struct device_node *np,
109 struct device_node *interrupt_parent)
111 irq_domain_add_legacy(np, 128, 0, 0, &irq_domain_simple_ops, NULL);
116 static int __init mxs_gpio_add_irq_domain(struct device_node *np,
117 struct device_node *interrupt_parent)
119 static int gpio_irq_base = MXS_GPIO_IRQ_START;
121 irq_domain_add_legacy(np, 32, gpio_irq_base, 0, &irq_domain_simple_ops, NULL);
127 static const struct of_device_id mxs_irq_match[] __initconst = {
128 { .compatible = "fsl,mxs-icoll", .data = mxs_icoll_add_irq_domain, },
129 { .compatible = "fsl,mxs-gpio", .data = mxs_gpio_add_irq_domain, },
133 static void __init mxs_dt_init_irq(void)
136 of_irq_init(mxs_irq_match);
139 static void __init imx23_timer_init(void)
144 static struct sys_timer imx23_timer = {
145 .init = imx23_timer_init,
148 static void __init imx28_timer_init(void)
153 static struct sys_timer imx28_timer = {
154 .init = imx28_timer_init,
162 static void __init update_fec_mac_prop(enum mac_oui oui)
164 struct device_node *np, *from = NULL;
165 struct property *newmac;
166 const u32 *ocotp = mxs_get_ocotp();
171 for (i = 0; i < 2; i++) {
172 np = of_find_compatible_node(from, NULL, "fsl,imx28-fec");
177 newmac = kzalloc(sizeof(*newmac) + 6, GFP_KERNEL);
180 newmac->value = newmac + 1;
183 newmac->name = kstrdup("local-mac-address", GFP_KERNEL);
190 * OCOTP only stores the last 4 octets for each mac address,
191 * so hard-code OUI here.
193 macaddr = newmac->value;
207 macaddr[3] = (val >> 16) & 0xff;
208 macaddr[4] = (val >> 8) & 0xff;
209 macaddr[5] = (val >> 0) & 0xff;
211 prom_update_property(np, newmac);
215 static void __init imx23_evk_init(void)
217 mxsfb_pdata.mode_list = mx23evk_video_modes;
218 mxsfb_pdata.mode_count = ARRAY_SIZE(mx23evk_video_modes);
219 mxsfb_pdata.default_bpp = 32;
220 mxsfb_pdata.ld_intf_width = STMLCDIF_24BIT;
223 static inline void enable_clk_enet_out(void)
225 struct clk *clk = clk_get_sys("enet_out", NULL);
228 clk_prepare_enable(clk);
231 static void __init imx28_evk_init(void)
233 enable_clk_enet_out();
234 update_fec_mac_prop(OUI_FSL);
236 mxsfb_pdata.mode_list = mx28evk_video_modes;
237 mxsfb_pdata.mode_count = ARRAY_SIZE(mx28evk_video_modes);
238 mxsfb_pdata.default_bpp = 32;
239 mxsfb_pdata.ld_intf_width = STMLCDIF_24BIT;
242 static void __init m28evk_init(void)
244 enable_clk_enet_out();
245 update_fec_mac_prop(OUI_DENX);
247 mxsfb_pdata.mode_list = m28evk_video_modes;
248 mxsfb_pdata.mode_count = ARRAY_SIZE(m28evk_video_modes);
249 mxsfb_pdata.default_bpp = 16;
250 mxsfb_pdata.ld_intf_width = STMLCDIF_18BIT;
253 static int apx4devkit_phy_fixup(struct phy_device *phy)
255 phy->dev_flags |= MICREL_PHY_50MHZ_CLK;
259 static void __init apx4devkit_init(void)
261 enable_clk_enet_out();
263 if (IS_BUILTIN(CONFIG_PHYLIB))
264 phy_register_fixup_for_uid(PHY_ID_KS8051, MICREL_PHY_ID_MASK,
265 apx4devkit_phy_fixup);
267 mxsfb_pdata.mode_list = apx4devkit_video_modes;
268 mxsfb_pdata.mode_count = ARRAY_SIZE(apx4devkit_video_modes);
269 mxsfb_pdata.default_bpp = 32;
270 mxsfb_pdata.ld_intf_width = STMLCDIF_24BIT;
273 static void __init mxs_machine_init(void)
275 if (of_machine_is_compatible("fsl,imx28-evk"))
277 else if (of_machine_is_compatible("fsl,imx23-evk"))
279 else if (of_machine_is_compatible("denx,m28evk"))
281 else if (of_machine_is_compatible("bluegiga,apx4devkit"))
284 of_platform_populate(NULL, of_default_bus_match_table,
285 mxs_auxdata_lookup, NULL);
288 static const char *imx23_dt_compat[] __initdata = {
291 "olimex,imx23-olinuxino",
296 static const char *imx28_dt_compat[] __initdata = {
297 "bluegiga,apx4devkit",
298 "crystalfontz,cfa10036",
306 DT_MACHINE_START(IMX23, "Freescale i.MX23 (Device Tree)")
307 .map_io = mx23_map_io,
308 .init_irq = mxs_dt_init_irq,
309 .timer = &imx23_timer,
310 .init_machine = mxs_machine_init,
311 .dt_compat = imx23_dt_compat,
312 .restart = mxs_restart,
315 DT_MACHINE_START(IMX28, "Freescale i.MX28 (Device Tree)")
316 .map_io = mx28_map_io,
317 .init_irq = mxs_dt_init_irq,
318 .timer = &imx28_timer,
319 .init_machine = mxs_machine_init,
320 .dt_compat = imx28_dt_compat,
321 .restart = mxs_restart,