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-rw-r--r--arch/arm/mach-s3c64xx/clock.c247
1 files changed, 156 insertions, 91 deletions
diff --git a/arch/arm/mach-s3c64xx/clock.c b/arch/arm/mach-s3c64xx/clock.c
index 39c238d7a3d..31bb27dc4ae 100644
--- a/arch/arm/mach-s3c64xx/clock.c
+++ b/arch/arm/mach-s3c64xx/clock.c
@@ -184,18 +184,6 @@ static struct clk init_clocks_off[] = {
184 .enable = s3c64xx_pclk_ctrl, 184 .enable = s3c64xx_pclk_ctrl,
185 .ctrlbit = S3C_CLKCON_PCLK_SPI1, 185 .ctrlbit = S3C_CLKCON_PCLK_SPI1,
186 }, { 186 }, {
187 .name = "spi_48m",
188 .devname = "s3c64xx-spi.0",
189 .parent = &clk_48m,
190 .enable = s3c64xx_sclk_ctrl,
191 .ctrlbit = S3C_CLKCON_SCLK_SPI0_48,
192 }, {
193 .name = "spi_48m",
194 .devname = "s3c64xx-spi.1",
195 .parent = &clk_48m,
196 .enable = s3c64xx_sclk_ctrl,
197 .ctrlbit = S3C_CLKCON_SCLK_SPI1_48,
198 }, {
199 .name = "48m", 187 .name = "48m",
200 .devname = "s3c-sdhci.0", 188 .devname = "s3c-sdhci.0",
201 .parent = &clk_48m, 189 .parent = &clk_48m,
@@ -226,6 +214,22 @@ static struct clk init_clocks_off[] = {
226 }, 214 },
227}; 215};
228 216
217static struct clk clk_48m_spi0 = {
218 .name = "spi_48m",
219 .devname = "s3c64xx-spi.0",
220 .parent = &clk_48m,
221 .enable = s3c64xx_sclk_ctrl,
222 .ctrlbit = S3C_CLKCON_SCLK_SPI0_48,
223};
224
225static struct clk clk_48m_spi1 = {
226 .name = "spi_48m",
227 .devname = "s3c64xx-spi.1",
228 .parent = &clk_48m,
229 .enable = s3c64xx_sclk_ctrl,
230 .ctrlbit = S3C_CLKCON_SCLK_SPI1_48,
231};
232
229static struct clk init_clocks[] = { 233static struct clk init_clocks[] = {
230 { 234 {
231 .name = "lcd", 235 .name = "lcd",
@@ -243,24 +247,6 @@ static struct clk init_clocks[] = {
243 .enable = s3c64xx_hclk_ctrl, 247 .enable = s3c64xx_hclk_ctrl,
244 .ctrlbit = S3C_CLKCON_HCLK_UHOST, 248 .ctrlbit = S3C_CLKCON_HCLK_UHOST,
245 }, { 249 }, {
246 .name = "hsmmc",
247 .devname = "s3c-sdhci.0",
248 .parent = &clk_h,
249 .enable = s3c64xx_hclk_ctrl,
250 .ctrlbit = S3C_CLKCON_HCLK_HSMMC0,
251 }, {
252 .name = "hsmmc",
253 .devname = "s3c-sdhci.1",
254 .parent = &clk_h,
255 .enable = s3c64xx_hclk_ctrl,
256 .ctrlbit = S3C_CLKCON_HCLK_HSMMC1,
257 }, {
258 .name = "hsmmc",
259 .devname = "s3c-sdhci.2",
260 .parent = &clk_h,
261 .enable = s3c64xx_hclk_ctrl,
262 .ctrlbit = S3C_CLKCON_HCLK_HSMMC2,
263 }, {
264 .name = "otg", 250 .name = "otg",
265 .parent = &clk_h, 251 .parent = &clk_h,
266 .enable = s3c64xx_hclk_ctrl, 252 .enable = s3c64xx_hclk_ctrl,
@@ -310,6 +296,29 @@ static struct clk init_clocks[] = {
310 } 296 }
311}; 297};
312 298
299static struct clk clk_hsmmc0 = {
300 .name = "hsmmc",
301 .devname = "s3c-sdhci.0",
302 .parent = &clk_h,
303 .enable = s3c64xx_hclk_ctrl,
304 .ctrlbit = S3C_CLKCON_HCLK_HSMMC0,
305};
306
307static struct clk clk_hsmmc1 = {
308 .name = "hsmmc",
309 .devname = "s3c-sdhci.1",
310 .parent = &clk_h,
311 .enable = s3c64xx_hclk_ctrl,
312 .ctrlbit = S3C_CLKCON_HCLK_HSMMC1,
313};
314
315static struct clk clk_hsmmc2 = {
316 .name = "hsmmc",
317 .devname = "s3c-sdhci.2",
318 .parent = &clk_h,
319 .enable = s3c64xx_hclk_ctrl,
320 .ctrlbit = S3C_CLKCON_HCLK_HSMMC2,
321};
313 322
314static struct clk clk_fout_apll = { 323static struct clk clk_fout_apll = {
315 .name = "fout_apll", 324 .name = "fout_apll",
@@ -578,36 +587,6 @@ static struct clksrc_sources clkset_camif = {
578static struct clksrc_clk clksrcs[] = { 587static struct clksrc_clk clksrcs[] = {
579 { 588 {
580 .clk = { 589 .clk = {
581 .name = "mmc_bus",
582 .devname = "s3c-sdhci.0",
583 .ctrlbit = S3C_CLKCON_SCLK_MMC0,
584 .enable = s3c64xx_sclk_ctrl,
585 },
586 .reg_src = { .reg = S3C_CLK_SRC, .shift = 18, .size = 2 },
587 .reg_div = { .reg = S3C_CLK_DIV1, .shift = 0, .size = 4 },
588 .sources = &clkset_spi_mmc,
589 }, {
590 .clk = {
591 .name = "mmc_bus",
592 .devname = "s3c-sdhci.1",
593 .ctrlbit = S3C_CLKCON_SCLK_MMC1,
594 .enable = s3c64xx_sclk_ctrl,
595 },
596 .reg_src = { .reg = S3C_CLK_SRC, .shift = 20, .size = 2 },
597 .reg_div = { .reg = S3C_CLK_DIV1, .shift = 4, .size = 4 },
598 .sources = &clkset_spi_mmc,
599 }, {
600 .clk = {
601 .name = "mmc_bus",
602 .devname = "s3c-sdhci.2",
603 .ctrlbit = S3C_CLKCON_SCLK_MMC2,
604 .enable = s3c64xx_sclk_ctrl,
605 },
606 .reg_src = { .reg = S3C_CLK_SRC, .shift = 22, .size = 2 },
607 .reg_div = { .reg = S3C_CLK_DIV1, .shift = 8, .size = 4 },
608 .sources = &clkset_spi_mmc,
609 }, {
610 .clk = {
611 .name = "usb-bus-host", 590 .name = "usb-bus-host",
612 .ctrlbit = S3C_CLKCON_SCLK_UHOST, 591 .ctrlbit = S3C_CLKCON_SCLK_UHOST,
613 .enable = s3c64xx_sclk_ctrl, 592 .enable = s3c64xx_sclk_ctrl,
@@ -617,35 +596,6 @@ static struct clksrc_clk clksrcs[] = {
617 .sources = &clkset_uhost, 596 .sources = &clkset_uhost,
618 }, { 597 }, {
619 .clk = { 598 .clk = {
620 .name = "uclk1",
621 .ctrlbit = S3C_CLKCON_SCLK_UART,
622 .enable = s3c64xx_sclk_ctrl,
623 },
624 .reg_src = { .reg = S3C_CLK_SRC, .shift = 13, .size = 1 },
625 .reg_div = { .reg = S3C_CLK_DIV2, .shift = 16, .size = 4 },
626 .sources = &clkset_uart,
627 }, {
628/* Where does UCLK0 come from? */
629 .clk = {
630 .name = "spi-bus",
631 .devname = "s3c64xx-spi.0",
632 .ctrlbit = S3C_CLKCON_SCLK_SPI0,
633 .enable = s3c64xx_sclk_ctrl,
634 },
635 .reg_src = { .reg = S3C_CLK_SRC, .shift = 14, .size = 2 },
636 .reg_div = { .reg = S3C_CLK_DIV2, .shift = 0, .size = 4 },
637 .sources = &clkset_spi_mmc,
638 }, {
639 .clk = {
640 .name = "spi-bus",
641 .devname = "s3c64xx-spi.1",
642 .enable = s3c64xx_sclk_ctrl,
643 },
644 .reg_src = { .reg = S3C_CLK_SRC, .shift = 16, .size = 2 },
645 .reg_div = { .reg = S3C_CLK_DIV2, .shift = 4, .size = 4 },
646 .sources = &clkset_spi_mmc,
647 }, {
648 .clk = {
649 .name = "audio-bus", 599 .name = "audio-bus",
650 .devname = "samsung-i2s.0", 600 .devname = "samsung-i2s.0",
651 .ctrlbit = S3C_CLKCON_SCLK_AUDIO0, 601 .ctrlbit = S3C_CLKCON_SCLK_AUDIO0,
@@ -695,6 +645,78 @@ static struct clksrc_clk clksrcs[] = {
695 }, 645 },
696}; 646};
697 647
648/* Where does UCLK0 come from? */
649static struct clksrc_clk clk_sclk_uclk = {
650 .clk = {
651 .name = "uclk1",
652 .ctrlbit = S3C_CLKCON_SCLK_UART,
653 .enable = s3c64xx_sclk_ctrl,
654 },
655 .reg_src = { .reg = S3C_CLK_SRC, .shift = 13, .size = 1 },
656 .reg_div = { .reg = S3C_CLK_DIV2, .shift = 16, .size = 4 },
657 .sources = &clkset_uart,
658};
659
660static struct clksrc_clk clk_sclk_mmc0 = {
661 .clk = {
662 .name = "mmc_bus",
663 .devname = "s3c-sdhci.0",
664 .ctrlbit = S3C_CLKCON_SCLK_MMC0,
665 .enable = s3c64xx_sclk_ctrl,
666 },
667 .reg_src = { .reg = S3C_CLK_SRC, .shift = 18, .size = 2 },
668 .reg_div = { .reg = S3C_CLK_DIV1, .shift = 0, .size = 4 },
669 .sources = &clkset_spi_mmc,
670};
671
672static struct clksrc_clk clk_sclk_mmc1 = {
673 .clk = {
674 .name = "mmc_bus",
675 .devname = "s3c-sdhci.1",
676 .ctrlbit = S3C_CLKCON_SCLK_MMC1,
677 .enable = s3c64xx_sclk_ctrl,
678 },
679 .reg_src = { .reg = S3C_CLK_SRC, .shift = 20, .size = 2 },
680 .reg_div = { .reg = S3C_CLK_DIV1, .shift = 4, .size = 4 },
681 .sources = &clkset_spi_mmc,
682};
683
684static struct clksrc_clk clk_sclk_mmc2 = {
685 .clk = {
686 .name = "mmc_bus",
687 .devname = "s3c-sdhci.2",
688 .ctrlbit = S3C_CLKCON_SCLK_MMC2,
689 .enable = s3c64xx_sclk_ctrl,
690 },
691 .reg_src = { .reg = S3C_CLK_SRC, .shift = 22, .size = 2 },
692 .reg_div = { .reg = S3C_CLK_DIV1, .shift = 8, .size = 4 },
693 .sources = &clkset_spi_mmc,
694};
695
696static struct clksrc_clk clk_sclk_spi0 = {
697 .clk = {
698 .name = "spi-bus",
699 .devname = "s3c64xx-spi.0",
700 .ctrlbit = S3C_CLKCON_SCLK_SPI0,
701 .enable = s3c64xx_sclk_ctrl,
702 },
703 .reg_src = { .reg = S3C_CLK_SRC, .shift = 14, .size = 2 },
704 .reg_div = { .reg = S3C_CLK_DIV2, .shift = 0, .size = 4 },
705 .sources = &clkset_spi_mmc,
706};
707
708static struct clksrc_clk clk_sclk_spi1 = {
709 .clk = {
710 .name = "spi-bus",
711 .devname = "s3c64xx-spi.1",
712 .ctrlbit = S3C_CLKCON_SCLK_SPI1,
713 .enable = s3c64xx_sclk_ctrl,
714 },
715 .reg_src = { .reg = S3C_CLK_SRC, .shift = 16, .size = 2 },
716 .reg_div = { .reg = S3C_CLK_DIV2, .shift = 4, .size = 4 },
717 .sources = &clkset_spi_mmc,
718};
719
698/* Clock initialisation code */ 720/* Clock initialisation code */
699 721
700static struct clksrc_clk *init_parents[] = { 722static struct clksrc_clk *init_parents[] = {
@@ -703,9 +725,42 @@ static struct clksrc_clk *init_parents[] = {
703 &clk_mout_mpll, 725 &clk_mout_mpll,
704}; 726};
705 727
728static struct clksrc_clk *clksrc_cdev[] = {
729 &clk_sclk_uclk,
730 &clk_sclk_mmc0,
731 &clk_sclk_mmc1,
732 &clk_sclk_mmc2,
733 &clk_sclk_spi0,
734 &clk_sclk_spi1,
735};
736
737static struct clk *clk_cdev[] = {
738 &clk_hsmmc0,
739 &clk_hsmmc1,
740 &clk_hsmmc2,
741 &clk_48m_spi0,
742 &clk_48m_spi1,
743};
744
745static struct clk_lookup s3c64xx_clk_lookup[] = {
746 CLKDEV_INIT(NULL, "clk_uart_baud2", &clk_p),
747 CLKDEV_INIT(NULL, "clk_uart_baud3", &clk_sclk_uclk.clk),
748 CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.0", &clk_hsmmc0),
749 CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.0", &clk_hsmmc1),
750 CLKDEV_INIT("s3c-sdhci.2", "mmc_busclk.0", &clk_hsmmc2),
751 CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.2", &clk_sclk_mmc0.clk),
752 CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.2", &clk_sclk_mmc1.clk),
753 CLKDEV_INIT("s3c-sdhci.2", "mmc_busclk.2", &clk_sclk_mmc2.clk),
754 CLKDEV_INIT(NULL, "spi_busclk0", &clk_p),
755 CLKDEV_INIT("s3c64xx-spi.0", "spi_busclk1", &clk_sclk_spi0.clk),
756 CLKDEV_INIT("s3c64xx-spi.0", "spi_busclk2", &clk_48m_spi0),
757 CLKDEV_INIT("s3c64xx-spi.1", "spi_busclk1", &clk_sclk_spi1.clk),
758 CLKDEV_INIT("s3c64xx-spi.1", "spi_busclk2", &clk_48m_spi1),
759};
760
706#define GET_DIV(clk, field) ((((clk) & field##_MASK) >> field##_SHIFT) + 1) 761#define GET_DIV(clk, field) ((((clk) & field##_MASK) >> field##_SHIFT) + 1)
707 762
708void __init_or_cpufreq s3c6400_setup_clocks(void) 763void __init_or_cpufreq s3c64xx_setup_clocks(void)
709{ 764{
710 struct clk *xtal_clk; 765 struct clk *xtal_clk;
711 unsigned long xtal; 766 unsigned long xtal;
@@ -804,13 +859,15 @@ static struct clk *clks[] __initdata = {
804 * as ARMCLK as well as the necessary parent clocks. 859 * as ARMCLK as well as the necessary parent clocks.
805 * 860 *
806 * This call does not setup the clocks, which is left to the 861 * This call does not setup the clocks, which is left to the
807 * s3c6400_setup_clocks() call which may be needed by the cpufreq 862 * s3c64xx_setup_clocks() call which may be needed by the cpufreq
808 * or resume code to re-set the clocks if the bootloader has changed 863 * or resume code to re-set the clocks if the bootloader has changed
809 * them. 864 * them.
810 */ 865 */
811void __init s3c64xx_register_clocks(unsigned long xtal, 866void __init s3c64xx_register_clocks(unsigned long xtal,
812 unsigned armclk_divlimit) 867 unsigned armclk_divlimit)
813{ 868{
869 unsigned int cnt;
870
814 armclk_mask = armclk_divlimit; 871 armclk_mask = armclk_divlimit;
815 872
816 s3c24xx_register_baseclocks(xtal); 873 s3c24xx_register_baseclocks(xtal);
@@ -821,7 +878,15 @@ void __init s3c64xx_register_clocks(unsigned long xtal,
821 s3c_register_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off)); 878 s3c_register_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
822 s3c_disable_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off)); 879 s3c_disable_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
823 880
881 s3c24xx_register_clocks(clk_cdev, ARRAY_SIZE(clk_cdev));
882 for (cnt = 0; cnt < ARRAY_SIZE(clk_cdev); cnt++)
883 s3c_disable_clocks(clk_cdev[cnt], 1);
884
824 s3c24xx_register_clocks(clks1, ARRAY_SIZE(clks1)); 885 s3c24xx_register_clocks(clks1, ARRAY_SIZE(clks1));
825 s3c_register_clksrc(clksrcs, ARRAY_SIZE(clksrcs)); 886 s3c_register_clksrc(clksrcs, ARRAY_SIZE(clksrcs));
887 for (cnt = 0; cnt < ARRAY_SIZE(clksrc_cdev); cnt++)
888 s3c_register_clksrc(clksrc_cdev[cnt], 1);
889 clkdev_add_table(s3c64xx_clk_lookup, ARRAY_SIZE(s3c64xx_clk_lookup));
890
826 s3c_pwmclk_init(); 891 s3c_pwmclk_init();
827} 892}
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-29 04:43:51 -0500