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authorLinus Torvalds <torvalds@linux-foundation.org>2010-10-25 11:32:05 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2010-10-25 11:32:05 -0400
commit33081adf8b89d5a716d7e1c60171768d39795b39 (patch)
tree275de58bbbb5f7ddffcdc087844cfc7fbe4315be /arch/powerpc/platforms
parentc55960499f810357a29659b32d6ea594abee9237 (diff)
parent506ecbca71d07fa327dd986be1682e90885678ee (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (365 commits) ALSA: hda - Disable sticky PCM stream assignment for AD codecs ALSA: usb - Creative USB X-Fi volume knob support ALSA: ca0106: Use card specific dac id for mute controls. ALSA: ca0106: Allow different sound cards to use different SPI channel mappings. ALSA: ca0106: Create a nice spot for mapping channels to dacs. ALSA: ca0106: Move enabling of front dac out of hardcoded setup sequence. ALSA: ca0106: Pull out dac powering routine into separate function. ALSA: ca0106 - add Sound Blaster 5.1vx info. ASoC: tlv320dac33: Use usleep_range for delays ALSA: usb-audio: add Novation Launchpad support ALSA: hda - Add workarounds for CT-IBG controllers ALSA: hda - Fix wrong TLV mute bit for STAC/IDT codecs ASoC: tpa6130a2: Error handling for broken chip ASoC: max98088: Staticise m98088_eq_band ASoC: soc-core: Fix codec->name memory leak ALSA: hda - Apply ideapad quirk to Acer laptops with Cxt5066 ALSA: hda - Add some workarounds for Creative IBG ALSA: hda - Fix wrong SPDIF NID assignment for CA0110 ALSA: hda - Fix codec rename rules for ALC662-compatible codecs ALSA: hda - Add alc_init_jacks() call to other codecs ...
Diffstat (limited to 'arch/powerpc/platforms')
-rw-r--r--arch/powerpc/platforms/85xx/p1022_ds.c211
1 files changed, 209 insertions, 2 deletions
diff --git a/arch/powerpc/platforms/85xx/p1022_ds.c b/arch/powerpc/platforms/85xx/p1022_ds.c
index 2b390d19a1d1..7eb5c40c069f 100644
--- a/arch/powerpc/platforms/85xx/p1022_ds.c
+++ b/arch/powerpc/platforms/85xx/p1022_ds.c
@@ -8,7 +8,6 @@
8 * Copyright 2010 Freescale Semiconductor, Inc. 8 * Copyright 2010 Freescale Semiconductor, Inc.
9 * 9 *
10 * This file is taken from the Freescale P1022DS BSP, with modifications: 10 * This file is taken from the Freescale P1022DS BSP, with modifications:
11 * 1) No DIU support (pending rewrite of DIU code)
12 * 2) No AMP support 11 * 2) No AMP support
13 * 3) No PCI endpoint support 12 * 3) No PCI endpoint support
14 * 13 *
@@ -20,12 +19,211 @@
20#include <linux/pci.h> 19#include <linux/pci.h>
21#include <linux/of_platform.h> 20#include <linux/of_platform.h>
22#include <linux/memblock.h> 21#include <linux/memblock.h>
23 22#include <asm/div64.h>
24#include <asm/mpic.h> 23#include <asm/mpic.h>
25#include <asm/swiotlb.h> 24#include <asm/swiotlb.h>
26 25
27#include <sysdev/fsl_soc.h> 26#include <sysdev/fsl_soc.h>
28#include <sysdev/fsl_pci.h> 27#include <sysdev/fsl_pci.h>
28#include <asm/fsl_guts.h>
29
30#if defined(CONFIG_FB_FSL_DIU) || defined(CONFIG_FB_FSL_DIU_MODULE)
31
32/*
33 * Board-specific initialization of the DIU. This code should probably be
34 * executed when the DIU is opened, rather than in arch code, but the DIU
35 * driver does not have a mechanism for this (yet).
36 *
37 * This is especially problematic on the P1022DS because the local bus (eLBC)
38 * and the DIU video signals share the same pins, which means that enabling the
39 * DIU will disable access to NOR flash.
40 */
41
42/* DIU Pixel Clock bits of the CLKDVDR Global Utilities register */
43#define CLKDVDR_PXCKEN 0x80000000
44#define CLKDVDR_PXCKINV 0x10000000
45#define CLKDVDR_PXCKDLY 0x06000000
46#define CLKDVDR_PXCLK_MASK 0x00FF0000
47
48/* Some ngPIXIS register definitions */
49#define PX_BRDCFG1_DVIEN 0x80
50#define PX_BRDCFG1_DFPEN 0x40
51#define PX_BRDCFG1_BACKLIGHT 0x20
52#define PX_BRDCFG1_DDCEN 0x10
53
54/*
55 * DIU Area Descriptor
56 *
57 * Note that we need to byte-swap the value before it's written to the AD
58 * register. So even though the registers don't look like they're in the same
59 * bit positions as they are on the MPC8610, the same value is written to the
60 * AD register on the MPC8610 and on the P1022.
61 */
62#define AD_BYTE_F 0x10000000
63#define AD_ALPHA_C_MASK 0x0E000000
64#define AD_ALPHA_C_SHIFT 25
65#define AD_BLUE_C_MASK 0x01800000
66#define AD_BLUE_C_SHIFT 23
67#define AD_GREEN_C_MASK 0x00600000
68#define AD_GREEN_C_SHIFT 21
69#define AD_RED_C_MASK 0x00180000
70#define AD_RED_C_SHIFT 19
71#define AD_PALETTE 0x00040000
72#define AD_PIXEL_S_MASK 0x00030000
73#define AD_PIXEL_S_SHIFT 16
74#define AD_COMP_3_MASK 0x0000F000
75#define AD_COMP_3_SHIFT 12
76#define AD_COMP_2_MASK 0x00000F00
77#define AD_COMP_2_SHIFT 8
78#define AD_COMP_1_MASK 0x000000F0
79#define AD_COMP_1_SHIFT 4
80#define AD_COMP_0_MASK 0x0000000F
81#define AD_COMP_0_SHIFT 0
82
83#define MAKE_AD(alpha, red, blue, green, size, c0, c1, c2, c3) \
84 cpu_to_le32(AD_BYTE_F | (alpha << AD_ALPHA_C_SHIFT) | \
85 (blue << AD_BLUE_C_SHIFT) | (green << AD_GREEN_C_SHIFT) | \
86 (red << AD_RED_C_SHIFT) | (c3 << AD_COMP_3_SHIFT) | \
87 (c2 << AD_COMP_2_SHIFT) | (c1 << AD_COMP_1_SHIFT) | \
88 (c0 << AD_COMP_0_SHIFT) | (size << AD_PIXEL_S_SHIFT))
89
90/**
91 * p1022ds_get_pixel_format: return the Area Descriptor for a given pixel depth
92 *
93 * The Area Descriptor is a 32-bit value that determine which bits in each
94 * pixel are to be used for each color.
95 */
96static unsigned int p1022ds_get_pixel_format(unsigned int bits_per_pixel,
97 int monitor_port)
98{
99 switch (bits_per_pixel) {
100 case 32:
101 /* 0x88883316 */
102 return MAKE_AD(3, 2, 0, 1, 3, 8, 8, 8, 8);
103 case 24:
104 /* 0x88082219 */
105 return MAKE_AD(4, 0, 1, 2, 2, 0, 8, 8, 8);
106 case 16:
107 /* 0x65053118 */
108 return MAKE_AD(4, 2, 1, 0, 1, 5, 6, 5, 0);
109 default:
110 pr_err("fsl-diu: unsupported pixel depth %u\n", bits_per_pixel);
111 return 0;
112 }
113}
114
115/**
116 * p1022ds_set_gamma_table: update the gamma table, if necessary
117 *
118 * On some boards, the gamma table for some ports may need to be modified.
119 * This is not the case on the P1022DS, so we do nothing.
120*/
121static void p1022ds_set_gamma_table(int monitor_port, char *gamma_table_base)
122{
123}
124
125/**
126 * p1022ds_set_monitor_port: switch the output to a different monitor port
127 *
128 */
129static void p1022ds_set_monitor_port(int monitor_port)
130{
131 struct device_node *pixis_node;
132 u8 __iomem *brdcfg1;
133
134 pixis_node = of_find_compatible_node(NULL, NULL, "fsl,p1022ds-pixis");
135 if (!pixis_node) {
136 pr_err("p1022ds: missing ngPIXIS node\n");
137 return;
138 }
139
140 brdcfg1 = of_iomap(pixis_node, 0);
141 if (!brdcfg1) {
142 pr_err("p1022ds: could not map ngPIXIS registers\n");
143 return;
144 }
145 brdcfg1 += 9; /* BRDCFG1 is at offset 9 in the ngPIXIS */
146
147 switch (monitor_port) {
148 case 0: /* DVI */
149 /* Enable the DVI port, disable the DFP and the backlight */
150 clrsetbits_8(brdcfg1, PX_BRDCFG1_DFPEN | PX_BRDCFG1_BACKLIGHT,
151 PX_BRDCFG1_DVIEN);
152 break;
153 case 1: /* Single link LVDS */
154 /* Enable the DFP port, disable the DVI and the backlight */
155 clrsetbits_8(brdcfg1, PX_BRDCFG1_DVIEN | PX_BRDCFG1_BACKLIGHT,
156 PX_BRDCFG1_DFPEN);
157 break;
158 default:
159 pr_err("p1022ds: unsupported monitor port %i\n", monitor_port);
160 }
161}
162
163/**
164 * p1022ds_set_pixel_clock: program the DIU's clock
165 *
166 * @pixclock: the wavelength, in picoseconds, of the clock
167 */
168void p1022ds_set_pixel_clock(unsigned int pixclock)
169{
170 struct device_node *guts_np = NULL;
171 struct ccsr_guts_85xx __iomem *guts;
172 unsigned long freq;
173 u64 temp;
174 u32 pxclk;
175
176 /* Map the global utilities registers. */
177 guts_np = of_find_compatible_node(NULL, NULL, "fsl,p1022-guts");
178 if (!guts_np) {
179 pr_err("p1022ds: missing global utilties device node\n");
180 return;
181 }
182
183 guts = of_iomap(guts_np, 0);
184 of_node_put(guts_np);
185 if (!guts) {
186 pr_err("p1022ds: could not map global utilties device\n");
187 return;
188 }
189
190 /* Convert pixclock from a wavelength to a frequency */
191 temp = 1000000000000ULL;
192 do_div(temp, pixclock);
193 freq = temp;
194
195 /* pixclk is the ratio of the platform clock to the pixel clock */
196 pxclk = DIV_ROUND_CLOSEST(fsl_get_sys_freq(), freq);
197
198 /* Disable the pixel clock, and set it to non-inverted and no delay */
199 clrbits32(&guts->clkdvdr,
200 CLKDVDR_PXCKEN | CLKDVDR_PXCKDLY | CLKDVDR_PXCLK_MASK);
201
202 /* Enable the clock and set the pxclk */
203 setbits32(&guts->clkdvdr, CLKDVDR_PXCKEN | (pxclk << 16));
204}
205
206/**
207 * p1022ds_show_monitor_port: show the current monitor
208 *
209 * This function returns a string indicating whether the current monitor is
210 * set to DVI or LVDS.
211 */
212ssize_t p1022ds_show_monitor_port(int monitor_port, char *buf)
213{
214 return sprintf(buf, "%c0 - DVI\n%c1 - Single link LVDS\n",
215 monitor_port == 0 ? '*' : ' ', monitor_port == 1 ? '*' : ' ');
216}
217
218/**
219 * p1022ds_set_sysfs_monitor_port: set the monitor port for sysfs
220 */
221int p1022ds_set_sysfs_monitor_port(int val)
222{
223 return val < 2 ? val : 0;
224}
225
226#endif
29 227
30void __init p1022_ds_pic_init(void) 228void __init p1022_ds_pic_init(void)
31{ 229{
@@ -92,6 +290,15 @@ static void __init p1022_ds_setup_arch(void)
92 } 290 }
93#endif 291#endif
94 292
293#if defined(CONFIG_FB_FSL_DIU) || defined(CONFIG_FB_FSL_DIU_MODULE)
294 diu_ops.get_pixel_format = p1022ds_get_pixel_format;
295 diu_ops.set_gamma_table = p1022ds_set_gamma_table;
296 diu_ops.set_monitor_port = p1022ds_set_monitor_port;
297 diu_ops.set_pixel_clock = p1022ds_set_pixel_clock;
298 diu_ops.show_monitor_port = p1022ds_show_monitor_port;
299 diu_ops.set_sysfs_monitor_port = p1022ds_set_sysfs_monitor_port;
300#endif
301
95#ifdef CONFIG_SMP 302#ifdef CONFIG_SMP
96 mpc85xx_smp_init(); 303 mpc85xx_smp_init();
97#endif 304#endif