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-rw-r--r--arch/arm/mach-s5pv210/clock.c207
1 files changed, 195 insertions, 12 deletions
diff --git a/arch/arm/mach-s5pv210/clock.c b/arch/arm/mach-s5pv210/clock.c
index d562670e1b0b..019c3a69b0e4 100644
--- a/arch/arm/mach-s5pv210/clock.c
+++ b/arch/arm/mach-s5pv210/clock.c
@@ -31,6 +31,8 @@
31#include <plat/clock-clksrc.h> 31#include <plat/clock-clksrc.h>
32#include <plat/s5pv210.h> 32#include <plat/s5pv210.h>
33 33
34static unsigned long xtal;
35
34static struct clksrc_clk clk_mout_apll = { 36static struct clksrc_clk clk_mout_apll = {
35 .clk = { 37 .clk = {
36 .name = "mout_apll", 38 .name = "mout_apll",
@@ -259,6 +261,36 @@ static struct clksrc_clk clk_sclk_vpll = {
259 .reg_src = { .reg = S5P_CLK_SRC0, .shift = 12, .size = 1 }, 261 .reg_src = { .reg = S5P_CLK_SRC0, .shift = 12, .size = 1 },
260}; 262};
261 263
264static struct clk *clkset_moutdmc0src_list[] = {
265 [0] = &clk_sclk_a2m.clk,
266 [1] = &clk_mout_mpll.clk,
267 [2] = NULL,
268 [3] = NULL,
269};
270
271static struct clksrc_sources clkset_moutdmc0src = {
272 .sources = clkset_moutdmc0src_list,
273 .nr_sources = ARRAY_SIZE(clkset_moutdmc0src_list),
274};
275
276static struct clksrc_clk clk_mout_dmc0 = {
277 .clk = {
278 .name = "mout_dmc0",
279 .id = -1,
280 },
281 .sources = &clkset_moutdmc0src,
282 .reg_src = { .reg = S5P_CLK_SRC6, .shift = 24, .size = 2 },
283};
284
285static struct clksrc_clk clk_sclk_dmc0 = {
286 .clk = {
287 .name = "sclk_dmc0",
288 .id = -1,
289 .parent = &clk_mout_dmc0.clk,
290 },
291 .reg_div = { .reg = S5P_CLK_DIV6, .shift = 28, .size = 4 },
292};
293
262static unsigned long s5pv210_clk_imem_get_rate(struct clk *clk) 294static unsigned long s5pv210_clk_imem_get_rate(struct clk *clk)
263{ 295{
264 return clk_get_rate(clk->parent) / 2; 296 return clk_get_rate(clk->parent) / 2;
@@ -268,8 +300,29 @@ static struct clk_ops clk_hclk_imem_ops = {
268 .get_rate = s5pv210_clk_imem_get_rate, 300 .get_rate = s5pv210_clk_imem_get_rate,
269}; 301};
270 302
303static unsigned long s5pv210_clk_fout_apll_get_rate(struct clk *clk)
304{
305 return s5p_get_pll45xx(xtal, __raw_readl(S5P_APLL_CON), pll_4508);
306}
307
308static struct clk_ops clk_fout_apll_ops = {
309 .get_rate = s5pv210_clk_fout_apll_get_rate,
310};
311
271static struct clk init_clocks_disable[] = { 312static struct clk init_clocks_disable[] = {
272 { 313 {
314 .name = "pdma",
315 .id = 0,
316 .parent = &clk_hclk_psys.clk,
317 .enable = s5pv210_clk_ip0_ctrl,
318 .ctrlbit = (1 << 3),
319 }, {
320 .name = "pdma",
321 .id = 1,
322 .parent = &clk_hclk_psys.clk,
323 .enable = s5pv210_clk_ip0_ctrl,
324 .ctrlbit = (1 << 4),
325 }, {
273 .name = "rot", 326 .name = "rot",
274 .id = -1, 327 .id = -1,
275 .parent = &clk_hclk_dsys.clk, 328 .parent = &clk_hclk_dsys.clk,
@@ -431,6 +484,12 @@ static struct clk init_clocks_disable[] = {
431 .parent = &clk_p, 484 .parent = &clk_p,
432 .enable = s5pv210_clk_ip3_ctrl, 485 .enable = s5pv210_clk_ip3_ctrl,
433 .ctrlbit = (1 << 6), 486 .ctrlbit = (1 << 6),
487 }, {
488 .name = "spdif",
489 .id = -1,
490 .parent = &clk_p,
491 .enable = s5pv210_clk_ip3_ctrl,
492 .ctrlbit = (1 << 0),
434 }, 493 },
435}; 494};
436 495
@@ -660,6 +719,53 @@ static struct clksrc_sources clkset_sclk_spdif = {
660 .nr_sources = ARRAY_SIZE(clkset_sclk_spdif_list), 719 .nr_sources = ARRAY_SIZE(clkset_sclk_spdif_list),
661}; 720};
662 721
722static int s5pv210_spdif_set_rate(struct clk *clk, unsigned long rate)
723{
724 struct clk *pclk;
725 int ret;
726
727 pclk = clk_get_parent(clk);
728 if (IS_ERR(pclk))
729 return -EINVAL;
730
731 ret = pclk->ops->set_rate(pclk, rate);
732 clk_put(pclk);
733
734 return ret;
735}
736
737static unsigned long s5pv210_spdif_get_rate(struct clk *clk)
738{
739 struct clk *pclk;
740 int rate;
741
742 pclk = clk_get_parent(clk);
743 if (IS_ERR(pclk))
744 return -EINVAL;
745
746 rate = pclk->ops->get_rate(clk);
747 clk_put(pclk);
748
749 return rate;
750}
751
752static struct clk_ops s5pv210_sclk_spdif_ops = {
753 .set_rate = s5pv210_spdif_set_rate,
754 .get_rate = s5pv210_spdif_get_rate,
755};
756
757static struct clksrc_clk clk_sclk_spdif = {
758 .clk = {
759 .name = "sclk_spdif",
760 .id = -1,
761 .enable = s5pv210_clk_mask0_ctrl,
762 .ctrlbit = (1 << 27),
763 .ops = &s5pv210_sclk_spdif_ops,
764 },
765 .sources = &clkset_sclk_spdif,
766 .reg_src = { .reg = S5P_CLK_SRC6, .shift = 12, .size = 2 },
767};
768
663static struct clk *clkset_group2_list[] = { 769static struct clk *clkset_group2_list[] = {
664 [0] = &clk_ext_xtal_mux, 770 [0] = &clk_ext_xtal_mux,
665 [1] = &clk_xusbxti, 771 [1] = &clk_xusbxti,
@@ -744,15 +850,6 @@ static struct clksrc_clk clksrcs[] = {
744 .sources = &clkset_sclk_mixer, 850 .sources = &clkset_sclk_mixer,
745 .reg_src = { .reg = S5P_CLK_SRC1, .shift = 4, .size = 1 }, 851 .reg_src = { .reg = S5P_CLK_SRC1, .shift = 4, .size = 1 },
746 }, { 852 }, {
747 .clk = {
748 .name = "sclk_spdif",
749 .id = -1,
750 .enable = s5pv210_clk_mask0_ctrl,
751 .ctrlbit = (1 << 27),
752 },
753 .sources = &clkset_sclk_spdif,
754 .reg_src = { .reg = S5P_CLK_SRC6, .shift = 12, .size = 2 },
755 }, {
756 .clk = { 853 .clk = {
757 .name = "sclk_fimc", 854 .name = "sclk_fimc",
758 .id = 0, 855 .id = 0,
@@ -953,12 +1050,93 @@ static struct clksrc_clk *sysclks[] = {
953 &clk_sclk_dac, 1050 &clk_sclk_dac,
954 &clk_sclk_pixel, 1051 &clk_sclk_pixel,
955 &clk_sclk_hdmi, 1052 &clk_sclk_hdmi,
1053 &clk_mout_dmc0,
1054 &clk_sclk_dmc0,
1055 &clk_sclk_audio0,
1056 &clk_sclk_audio1,
1057 &clk_sclk_audio2,
1058 &clk_sclk_spdif,
1059};
1060
1061static u32 epll_div[][6] = {
1062 { 48000000, 0, 48, 3, 3, 0 },
1063 { 96000000, 0, 48, 3, 2, 0 },
1064 { 144000000, 1, 72, 3, 2, 0 },
1065 { 192000000, 0, 48, 3, 1, 0 },
1066 { 288000000, 1, 72, 3, 1, 0 },
1067 { 32750000, 1, 65, 3, 4, 35127 },
1068 { 32768000, 1, 65, 3, 4, 35127 },
1069 { 45158400, 0, 45, 3, 3, 10355 },
1070 { 45000000, 0, 45, 3, 3, 10355 },
1071 { 45158000, 0, 45, 3, 3, 10355 },
1072 { 49125000, 0, 49, 3, 3, 9961 },
1073 { 49152000, 0, 49, 3, 3, 9961 },
1074 { 67737600, 1, 67, 3, 3, 48366 },
1075 { 67738000, 1, 67, 3, 3, 48366 },
1076 { 73800000, 1, 73, 3, 3, 47710 },
1077 { 73728000, 1, 73, 3, 3, 47710 },
1078 { 36000000, 1, 32, 3, 4, 0 },
1079 { 60000000, 1, 60, 3, 3, 0 },
1080 { 72000000, 1, 72, 3, 3, 0 },
1081 { 80000000, 1, 80, 3, 3, 0 },
1082 { 84000000, 0, 42, 3, 2, 0 },
1083 { 50000000, 0, 50, 3, 3, 0 },
1084};
1085
1086static int s5pv210_epll_set_rate(struct clk *clk, unsigned long rate)
1087{
1088 unsigned int epll_con, epll_con_k;
1089 unsigned int i;
1090
1091 /* Return if nothing changed */
1092 if (clk->rate == rate)
1093 return 0;
1094
1095 epll_con = __raw_readl(S5P_EPLL_CON);
1096 epll_con_k = __raw_readl(S5P_EPLL_CON1);
1097
1098 epll_con_k &= ~PLL46XX_KDIV_MASK;
1099 epll_con &= ~(1 << 27 |
1100 PLL46XX_MDIV_MASK << PLL46XX_MDIV_SHIFT |
1101 PLL46XX_PDIV_MASK << PLL46XX_PDIV_SHIFT |
1102 PLL46XX_SDIV_MASK << PLL46XX_SDIV_SHIFT);
1103
1104 for (i = 0; i < ARRAY_SIZE(epll_div); i++) {
1105 if (epll_div[i][0] == rate) {
1106 epll_con_k |= epll_div[i][5] << 0;
1107 epll_con |= (epll_div[i][1] << 27 |
1108 epll_div[i][2] << PLL46XX_MDIV_SHIFT |
1109 epll_div[i][3] << PLL46XX_PDIV_SHIFT |
1110 epll_div[i][4] << PLL46XX_SDIV_SHIFT);
1111 break;
1112 }
1113 }
1114
1115 if (i == ARRAY_SIZE(epll_div)) {
1116 printk(KERN_ERR "%s: Invalid Clock EPLL Frequency\n",
1117 __func__);
1118 return -EINVAL;
1119 }
1120
1121 __raw_writel(epll_con, S5P_EPLL_CON);
1122 __raw_writel(epll_con_k, S5P_EPLL_CON1);
1123
1124 printk(KERN_WARNING "EPLL Rate changes from %lu to %lu\n",
1125 clk->rate, rate);
1126
1127 clk->rate = rate;
1128
1129 return 0;
1130}
1131
1132static struct clk_ops s5pv210_epll_ops = {
1133 .set_rate = s5pv210_epll_set_rate,
1134 .get_rate = s5p_epll_get_rate,
956}; 1135};
957 1136
958void __init_or_cpufreq s5pv210_setup_clocks(void) 1137void __init_or_cpufreq s5pv210_setup_clocks(void)
959{ 1138{
960 struct clk *xtal_clk; 1139 struct clk *xtal_clk;
961 unsigned long xtal;
962 unsigned long vpllsrc; 1140 unsigned long vpllsrc;
963 unsigned long armclk; 1141 unsigned long armclk;
964 unsigned long hclk_msys; 1142 unsigned long hclk_msys;
@@ -974,6 +1152,10 @@ void __init_or_cpufreq s5pv210_setup_clocks(void)
974 unsigned int ptr; 1152 unsigned int ptr;
975 u32 clkdiv0, clkdiv1; 1153 u32 clkdiv0, clkdiv1;
976 1154
1155 /* Set functions for clk_fout_epll */
1156 clk_fout_epll.enable = s5p_epll_enable;
1157 clk_fout_epll.ops = &s5pv210_epll_ops;
1158
977 printk(KERN_DEBUG "%s: registering clocks\n", __func__); 1159 printk(KERN_DEBUG "%s: registering clocks\n", __func__);
978 1160
979 clkdiv0 = __raw_readl(S5P_CLK_DIV0); 1161 clkdiv0 = __raw_readl(S5P_CLK_DIV0);
@@ -992,11 +1174,12 @@ void __init_or_cpufreq s5pv210_setup_clocks(void)
992 1174
993 apll = s5p_get_pll45xx(xtal, __raw_readl(S5P_APLL_CON), pll_4508); 1175 apll = s5p_get_pll45xx(xtal, __raw_readl(S5P_APLL_CON), pll_4508);
994 mpll = s5p_get_pll45xx(xtal, __raw_readl(S5P_MPLL_CON), pll_4502); 1176 mpll = s5p_get_pll45xx(xtal, __raw_readl(S5P_MPLL_CON), pll_4502);
995 epll = s5p_get_pll45xx(xtal, __raw_readl(S5P_EPLL_CON), pll_4500); 1177 epll = s5p_get_pll46xx(xtal, __raw_readl(S5P_EPLL_CON),
1178 __raw_readl(S5P_EPLL_CON1), pll_4600);
996 vpllsrc = clk_get_rate(&clk_vpllsrc.clk); 1179 vpllsrc = clk_get_rate(&clk_vpllsrc.clk);
997 vpll = s5p_get_pll45xx(vpllsrc, __raw_readl(S5P_VPLL_CON), pll_4502); 1180 vpll = s5p_get_pll45xx(vpllsrc, __raw_readl(S5P_VPLL_CON), pll_4502);
998 1181
999 clk_fout_apll.rate = apll; 1182 clk_fout_apll.ops = &clk_fout_apll_ops;
1000 clk_fout_mpll.rate = mpll; 1183 clk_fout_mpll.rate = mpll;
1001 clk_fout_epll.rate = epll; 1184 clk_fout_epll.rate = epll;
1002 clk_fout_vpll.rate = vpll; 1185 clk_fout_vpll.rate = vpll;