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Diffstat (limited to 'arch/arm/mach-s5p64x0/clock-s5p6440.c')
-rw-r--r--arch/arm/mach-s5p64x0/clock-s5p6440.c632
1 files changed, 0 insertions, 632 deletions
diff --git a/arch/arm/mach-s5p64x0/clock-s5p6440.c b/arch/arm/mach-s5p64x0/clock-s5p6440.c
deleted file mode 100644
index ae34a1d5e10a..000000000000
--- a/arch/arm/mach-s5p64x0/clock-s5p6440.c
+++ /dev/null
@@ -1,632 +0,0 @@
-/* linux/arch/arm/mach-s5p64x0/clock-s5p6440.c
- *
- * Copyright (c) 2009-2010 Samsung Electronics Co., Ltd.
- * http://www.samsung.com
- *
- * S5P6440 - Clock support
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
-*/
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/list.h>
-#include <linux/errno.h>
-#include <linux/err.h>
-#include <linux/clk.h>
-#include <linux/device.h>
-#include <linux/io.h>
-
-#include <mach/hardware.h>
-#include <mach/map.h>
-#include <mach/regs-clock.h>
-
-#include <plat/cpu-freq.h>
-#include <plat/clock.h>
-#include <plat/cpu.h>
-#include <plat/pll.h>
-#include <plat/s5p-clock.h>
-#include <plat/clock-clksrc.h>
-
-#include "clock.h"
-#include "common.h"
-
-static u32 epll_div[][5] = {
- { 36000000, 0, 48, 1, 4 },
- { 48000000, 0, 32, 1, 3 },
- { 60000000, 0, 40, 1, 3 },
- { 72000000, 0, 48, 1, 3 },
- { 84000000, 0, 28, 1, 2 },
- { 96000000, 0, 32, 1, 2 },
- { 32768000, 45264, 43, 1, 4 },
- { 45158000, 6903, 30, 1, 3 },
- { 49152000, 50332, 32, 1, 3 },
- { 67738000, 10398, 45, 1, 3 },
- { 73728000, 9961, 49, 1, 3 }
-};
-
-static int s5p6440_epll_set_rate(struct clk *clk, unsigned long rate)
-{
- unsigned int epll_con, epll_con_k;
- unsigned int i;
-
- if (clk->rate == rate) /* Return if nothing changed */
- return 0;
-
- epll_con = __raw_readl(S5P64X0_EPLL_CON);
- epll_con_k = __raw_readl(S5P64X0_EPLL_CON_K);
-
- epll_con_k &= ~(PLL90XX_KDIV_MASK);
- epll_con &= ~(PLL90XX_MDIV_MASK | PLL90XX_PDIV_MASK | PLL90XX_SDIV_MASK);
-
- for (i = 0; i < ARRAY_SIZE(epll_div); i++) {
- if (epll_div[i][0] == rate) {
- epll_con_k |= (epll_div[i][1] << PLL90XX_KDIV_SHIFT);
- epll_con |= (epll_div[i][2] << PLL90XX_MDIV_SHIFT) |
- (epll_div[i][3] << PLL90XX_PDIV_SHIFT) |
- (epll_div[i][4] << PLL90XX_SDIV_SHIFT);
- break;
- }
- }
-
- if (i == ARRAY_SIZE(epll_div)) {
- printk(KERN_ERR "%s: Invalid Clock EPLL Frequency\n", __func__);
- return -EINVAL;
- }
-
- __raw_writel(epll_con, S5P64X0_EPLL_CON);
- __raw_writel(epll_con_k, S5P64X0_EPLL_CON_K);
-
- printk(KERN_WARNING "EPLL Rate changes from %lu to %lu\n",
- clk->rate, rate);
-
- clk->rate = rate;
-
- return 0;
-}
-
-static struct clk_ops s5p6440_epll_ops = {
- .get_rate = s5p_epll_get_rate,
- .set_rate = s5p6440_epll_set_rate,
-};
-
-static struct clksrc_clk clk_hclk = {
- .clk = {
- .name = "clk_hclk",
- .parent = &clk_armclk.clk,
- },
- .reg_div = { .reg = S5P64X0_CLK_DIV0, .shift = 8, .size = 4 },
-};
-
-static struct clksrc_clk clk_pclk = {
- .clk = {
- .name = "clk_pclk",
- .parent = &clk_hclk.clk,
- },
- .reg_div = { .reg = S5P64X0_CLK_DIV0, .shift = 12, .size = 4 },
-};
-static struct clksrc_clk clk_hclk_low = {
- .clk = {
- .name = "clk_hclk_low",
- },
- .sources = &clkset_hclk_low,
- .reg_src = { .reg = S5P64X0_SYS_OTHERS, .shift = 6, .size = 1 },
- .reg_div = { .reg = S5P64X0_CLK_DIV3, .shift = 8, .size = 4 },
-};
-
-static struct clksrc_clk clk_pclk_low = {
- .clk = {
- .name = "clk_pclk_low",
- .parent = &clk_hclk_low.clk,
- },
- .reg_div = { .reg = S5P64X0_CLK_DIV3, .shift = 12, .size = 4 },
-};
-
-/*
- * The following clocks will be disabled during clock initialization. It is
- * recommended to keep the following clocks disabled until the driver requests
- * for enabling the clock.
- */
-static struct clk init_clocks_off[] = {
- {
- .name = "nand",
- .parent = &clk_hclk.clk,
- .enable = s5p64x0_mem_ctrl,
- .ctrlbit = (1 << 2),
- }, {
- .name = "post",
- .parent = &clk_hclk_low.clk,
- .enable = s5p64x0_hclk0_ctrl,
- .ctrlbit = (1 << 5)
- }, {
- .name = "2d",
- .parent = &clk_hclk.clk,
- .enable = s5p64x0_hclk0_ctrl,
- .ctrlbit = (1 << 8),
- }, {
- .name = "dma",
- .devname = "dma-pl330",
- .parent = &clk_hclk_low.clk,
- .enable = s5p64x0_hclk0_ctrl,
- .ctrlbit = (1 << 12),
- }, {
- .name = "hsmmc",
- .devname = "s3c-sdhci.0",
- .parent = &clk_hclk_low.clk,
- .enable = s5p64x0_hclk0_ctrl,
- .ctrlbit = (1 << 17),
- }, {
- .name = "hsmmc",
- .devname = "s3c-sdhci.1",
- .parent = &clk_hclk_low.clk,
- .enable = s5p64x0_hclk0_ctrl,
- .ctrlbit = (1 << 18),
- }, {
- .name = "hsmmc",
- .devname = "s3c-sdhci.2",
- .parent = &clk_hclk_low.clk,
- .enable = s5p64x0_hclk0_ctrl,
- .ctrlbit = (1 << 19),
- }, {
- .name = "otg",
- .parent = &clk_hclk_low.clk,
- .enable = s5p64x0_hclk0_ctrl,
- .ctrlbit = (1 << 20)
- }, {
- .name = "irom",
- .parent = &clk_hclk.clk,
- .enable = s5p64x0_hclk0_ctrl,
- .ctrlbit = (1 << 25),
- }, {
- .name = "lcd",
- .parent = &clk_hclk_low.clk,
- .enable = s5p64x0_hclk1_ctrl,
- .ctrlbit = (1 << 1),
- }, {
- .name = "hclk_fimgvg",
- .parent = &clk_hclk.clk,
- .enable = s5p64x0_hclk1_ctrl,
- .ctrlbit = (1 << 2),
- }, {
- .name = "tsi",
- .parent = &clk_hclk_low.clk,
- .enable = s5p64x0_hclk1_ctrl,
- .ctrlbit = (1 << 0),
- }, {
- .name = "watchdog",
- .parent = &clk_pclk_low.clk,
- .enable = s5p64x0_pclk_ctrl,
- .ctrlbit = (1 << 5),
- }, {
- .name = "rtc",
- .parent = &clk_pclk_low.clk,
- .enable = s5p64x0_pclk_ctrl,
- .ctrlbit = (1 << 6),
- }, {
- .name = "timers",
- .parent = &clk_pclk_low.clk,
- .enable = s5p64x0_pclk_ctrl,
- .ctrlbit = (1 << 7),
- }, {
- .name = "pcm",
- .parent = &clk_pclk_low.clk,
- .enable = s5p64x0_pclk_ctrl,
- .ctrlbit = (1 << 8),
- }, {
- .name = "adc",
- .parent = &clk_pclk_low.clk,
- .enable = s5p64x0_pclk_ctrl,
- .ctrlbit = (1 << 12),
- }, {
- .name = "i2c",
- .parent = &clk_pclk_low.clk,
- .enable = s5p64x0_pclk_ctrl,
- .ctrlbit = (1 << 17),
- }, {
- .name = "spi",
- .devname = "s5p64x0-spi.0",
- .parent = &clk_pclk_low.clk,
- .enable = s5p64x0_pclk_ctrl,
- .ctrlbit = (1 << 21),
- }, {
- .name = "spi",
- .devname = "s5p64x0-spi.1",
- .parent = &clk_pclk_low.clk,
- .enable = s5p64x0_pclk_ctrl,
- .ctrlbit = (1 << 22),
- }, {
- .name = "gps",
- .parent = &clk_pclk_low.clk,
- .enable = s5p64x0_pclk_ctrl,
- .ctrlbit = (1 << 25),
- }, {
- .name = "dsim",
- .parent = &clk_pclk_low.clk,
- .enable = s5p64x0_pclk_ctrl,
- .ctrlbit = (1 << 28),
- }, {
- .name = "etm",
- .parent = &clk_pclk.clk,
- .enable = s5p64x0_pclk_ctrl,
- .ctrlbit = (1 << 29),
- }, {
- .name = "dmc0",
- .parent = &clk_pclk.clk,
- .enable = s5p64x0_pclk_ctrl,
- .ctrlbit = (1 << 30),
- }, {
- .name = "pclk_fimgvg",
- .parent = &clk_pclk.clk,
- .enable = s5p64x0_pclk_ctrl,
- .ctrlbit = (1 << 31),
- }, {
- .name = "mmc_48m",
- .devname = "s3c-sdhci.0",
- .parent = &clk_48m,
- .enable = s5p64x0_sclk_ctrl,
- .ctrlbit = (1 << 27),
- }, {
- .name = "mmc_48m",
- .devname = "s3c-sdhci.1",
- .parent = &clk_48m,
- .enable = s5p64x0_sclk_ctrl,
- .ctrlbit = (1 << 28),
- }, {
- .name = "mmc_48m",
- .devname = "s3c-sdhci.2",
- .parent = &clk_48m,
- .enable = s5p64x0_sclk_ctrl,
- .ctrlbit = (1 << 29),
- },
-};
-
-/*
- * The following clocks will be enabled during clock initialization.
- */
-static struct clk init_clocks[] = {
- {
- .name = "intc",
- .parent = &clk_hclk.clk,
- .enable = s5p64x0_hclk0_ctrl,
- .ctrlbit = (1 << 1),
- }, {
- .name = "mem",
- .parent = &clk_hclk.clk,
- .enable = s5p64x0_hclk0_ctrl,
- .ctrlbit = (1 << 21),
- }, {
- .name = "uart",
- .devname = "s3c6400-uart.0",
- .parent = &clk_pclk_low.clk,
- .enable = s5p64x0_pclk_ctrl,
- .ctrlbit = (1 << 1),
- }, {
- .name = "uart",
- .devname = "s3c6400-uart.1",
- .parent = &clk_pclk_low.clk,
- .enable = s5p64x0_pclk_ctrl,
- .ctrlbit = (1 << 2),
- }, {
- .name = "uart",
- .devname = "s3c6400-uart.2",
- .parent = &clk_pclk_low.clk,
- .enable = s5p64x0_pclk_ctrl,
- .ctrlbit = (1 << 3),
- }, {
- .name = "uart",
- .devname = "s3c6400-uart.3",
- .parent = &clk_pclk_low.clk,
- .enable = s5p64x0_pclk_ctrl,
- .ctrlbit = (1 << 4),
- }, {
- .name = "gpio",
- .parent = &clk_pclk_low.clk,
- .enable = s5p64x0_pclk_ctrl,
- .ctrlbit = (1 << 18),
- },
-};
-
-static struct clk clk_iis_cd_v40 = {
- .name = "iis_cdclk_v40",
-};
-
-static struct clk clk_pcm_cd = {
- .name = "pcm_cdclk",
-};
-
-static struct clk *clkset_group1_list[] = {
- &clk_mout_epll.clk,
- &clk_dout_mpll.clk,
- &clk_fin_epll,
-};
-
-static struct clksrc_sources clkset_group1 = {
- .sources = clkset_group1_list,
- .nr_sources = ARRAY_SIZE(clkset_group1_list),
-};
-
-static struct clk *clkset_uart_list[] = {
- &clk_mout_epll.clk,
- &clk_dout_mpll.clk,
-};
-
-static struct clksrc_sources clkset_uart = {
- .sources = clkset_uart_list,
- .nr_sources = ARRAY_SIZE(clkset_uart_list),
-};
-
-static struct clk *clkset_audio_list[] = {
- &clk_mout_epll.clk,
- &clk_dout_mpll.clk,
- &clk_fin_epll,
- &clk_iis_cd_v40,
- &clk_pcm_cd,
-};
-
-static struct clksrc_sources clkset_audio = {
- .sources = clkset_audio_list,
- .nr_sources = ARRAY_SIZE(clkset_audio_list),
-};
-
-static struct clksrc_clk clksrcs[] = {
- {
- .clk = {
- .name = "sclk_post",
- .ctrlbit = (1 << 10),
- .enable = s5p64x0_sclk_ctrl,
- },
- .sources = &clkset_group1,
- .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 26, .size = 2 },
- .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 12, .size = 4 },
- }, {
- .clk = {
- .name = "sclk_dispcon",
- .ctrlbit = (1 << 1),
- .enable = s5p64x0_sclk1_ctrl,
- },
- .sources = &clkset_group1,
- .reg_src = { .reg = S5P64X0_CLK_SRC1, .shift = 4, .size = 2 },
- .reg_div = { .reg = S5P64X0_CLK_DIV3, .shift = 0, .size = 4 },
- }, {
- .clk = {
- .name = "sclk_fimgvg",
- .ctrlbit = (1 << 2),
- .enable = s5p64x0_sclk1_ctrl,
- },
- .sources = &clkset_group1,
- .reg_src = { .reg = S5P64X0_CLK_SRC1, .shift = 8, .size = 2 },
- .reg_div = { .reg = S5P64X0_CLK_DIV3, .shift = 4, .size = 4 },
- },
-};
-
-static struct clksrc_clk clk_sclk_mmc0 = {
- .clk = {
- .name = "sclk_mmc",
- .devname = "s3c-sdhci.0",
- .ctrlbit = (1 << 24),
- .enable = s5p64x0_sclk_ctrl,
- },
- .sources = &clkset_group1,
- .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 18, .size = 2 },
- .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 0, .size = 4 },
-};
-
-static struct clksrc_clk clk_sclk_mmc1 = {
- .clk = {
- .name = "sclk_mmc",
- .devname = "s3c-sdhci.1",
- .ctrlbit = (1 << 25),
- .enable = s5p64x0_sclk_ctrl,
- },
- .sources = &clkset_group1,
- .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 20, .size = 2 },
- .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 4, .size = 4 },
-};
-
-static struct clksrc_clk clk_sclk_mmc2 = {
- .clk = {
- .name = "sclk_mmc",
- .devname = "s3c-sdhci.2",
- .ctrlbit = (1 << 26),
- .enable = s5p64x0_sclk_ctrl,
- },
- .sources = &clkset_group1,
- .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 22, .size = 2 },
- .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 8, .size = 4 },
-};
-
-static struct clksrc_clk clk_sclk_uclk = {
- .clk = {
- .name = "uclk1",
- .ctrlbit = (1 << 5),
- .enable = s5p64x0_sclk_ctrl,
- },
- .sources = &clkset_uart,
- .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 13, .size = 1 },
- .reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 16, .size = 4 },
-};
-
-static struct clk clk_i2s0 = {
- .name = "iis",
- .devname = "samsung-i2s.0",
- .parent = &clk_pclk_low.clk,
- .enable = s5p64x0_pclk_ctrl,
- .ctrlbit = (1 << 26),
-};
-
-static struct clksrc_clk clk_audio_bus2 = {
- .clk = {
- .name = "sclk_audio2",
- .devname = "samsung-i2s.0",
- .ctrlbit = (1 << 11),
- .enable = s5p64x0_sclk_ctrl,
- },
- .sources = &clkset_audio,
- .reg_src = { .reg = S5P64X0_CLK_SRC1, .shift = 0, .size = 3 },
- .reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 24, .size = 4 },
-};
-
-static struct clksrc_clk clk_sclk_spi0 = {
- .clk = {
- .name = "sclk_spi",
- .devname = "s5p64x0-spi.0",
- .ctrlbit = (1 << 20),
- .enable = s5p64x0_sclk_ctrl,
- },
- .sources = &clkset_group1,
- .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 14, .size = 2 },
- .reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 0, .size = 4 },
-};
-
-static struct clksrc_clk clk_sclk_spi1 = {
- .clk = {
- .name = "sclk_spi",
- .devname = "s5p64x0-spi.1",
- .ctrlbit = (1 << 21),
- .enable = s5p64x0_sclk_ctrl,
- },
- .sources = &clkset_group1,
- .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 16, .size = 2 },
- .reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 4, .size = 4 },
-};
-
-/* Clock initialization code */
-static struct clksrc_clk *sysclks[] = {
- &clk_mout_apll,
- &clk_mout_epll,
- &clk_mout_mpll,
- &clk_dout_mpll,
- &clk_armclk,
- &clk_hclk,
- &clk_pclk,
- &clk_hclk_low,
- &clk_pclk_low,
-};
-
-static struct clk dummy_apb_pclk = {
- .name = "apb_pclk",
- .id = -1,
-};
-
-static struct clk *clk_cdev[] = {
- &clk_i2s0,
-};
-
-static struct clksrc_clk *clksrc_cdev[] = {
- &clk_sclk_uclk,
- &clk_sclk_spi0,
- &clk_sclk_spi1,
- &clk_sclk_mmc0,
- &clk_sclk_mmc1,
- &clk_sclk_mmc2,
- &clk_audio_bus2,
-};
-
-static struct clk_lookup s5p6440_clk_lookup[] = {
- CLKDEV_INIT(NULL, "clk_uart_baud2", &clk_pclk_low.clk),
- CLKDEV_INIT(NULL, "clk_uart_baud3", &clk_sclk_uclk.clk),
- CLKDEV_INIT(NULL, "spi_busclk0", &clk_p),
- CLKDEV_INIT("s5p64x0-spi.0", "spi_busclk1", &clk_sclk_spi0.clk),
- CLKDEV_INIT("s5p64x0-spi.1", "spi_busclk1", &clk_sclk_spi1.clk),
- CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.2", &clk_sclk_mmc0.clk),
- CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.2", &clk_sclk_mmc1.clk),
- CLKDEV_INIT("s3c-sdhci.2", "mmc_busclk.2", &clk_sclk_mmc2.clk),
- CLKDEV_INIT("samsung-i2s.0", "i2s_opclk0", &clk_i2s0),
- CLKDEV_INIT("samsung-i2s.0", "i2s_opclk1", &clk_audio_bus2.clk),
-};
-
-void __init_or_cpufreq s5p6440_setup_clocks(void)
-{
- struct clk *xtal_clk;
-
- unsigned long xtal;
- unsigned long fclk;
- unsigned long hclk;
- unsigned long hclk_low;
- unsigned long pclk;
- unsigned long pclk_low;
-
- unsigned long apll;
- unsigned long mpll;
- unsigned long epll;
- unsigned int ptr;
-
- /* Set S5P6440 functions for clk_fout_epll */
-
- clk_fout_epll.enable = s5p_epll_enable;
- clk_fout_epll.ops = &s5p6440_epll_ops;
-
- clk_48m.enable = s5p64x0_clk48m_ctrl;
-
- xtal_clk = clk_get(NULL, "ext_xtal");
- BUG_ON(IS_ERR(xtal_clk));
-
- xtal = clk_get_rate(xtal_clk);
- clk_put(xtal_clk);
-
- apll = s5p_get_pll45xx(xtal, __raw_readl(S5P64X0_APLL_CON), pll_4502);
- mpll = s5p_get_pll45xx(xtal, __raw_readl(S5P64X0_MPLL_CON), pll_4502);
- epll = s5p_get_pll90xx(xtal, __raw_readl(S5P64X0_EPLL_CON),
- __raw_readl(S5P64X0_EPLL_CON_K));
-
- clk_fout_apll.rate = apll;
- clk_fout_mpll.rate = mpll;
- clk_fout_epll.rate = epll;
-
- printk(KERN_INFO "S5P6440: PLL settings, A=%ld.%ldMHz, M=%ld.%ldMHz," \
- " E=%ld.%ldMHz\n",
- print_mhz(apll), print_mhz(mpll), print_mhz(epll));
-
- fclk = clk_get_rate(&clk_armclk.clk);
- hclk = clk_get_rate(&clk_hclk.clk);
- pclk = clk_get_rate(&clk_pclk.clk);
- hclk_low = clk_get_rate(&clk_hclk_low.clk);
- pclk_low = clk_get_rate(&clk_pclk_low.clk);
-
- printk(KERN_INFO "S5P6440: HCLK=%ld.%ldMHz, HCLK_LOW=%ld.%ldMHz," \
- " PCLK=%ld.%ldMHz, PCLK_LOW=%ld.%ldMHz\n",
- print_mhz(hclk), print_mhz(hclk_low),
- print_mhz(pclk), print_mhz(pclk_low));
-
- clk_f.rate = fclk;
- clk_h.rate = hclk;
- clk_p.rate = pclk;
-
- for (ptr = 0; ptr < ARRAY_SIZE(clksrcs); ptr++)
- s3c_set_clksrc(&clksrcs[ptr], true);
-}
-
-static struct clk *clks[] __initdata = {
- &clk_ext,
- &clk_iis_cd_v40,
- &clk_pcm_cd,
-};
-
-void __init s5p6440_register_clocks(void)
-{
- int ptr;
- unsigned int cnt;
-
- s3c24xx_register_clocks(clks, ARRAY_SIZE(clks));
-
- for (ptr = 0; ptr < ARRAY_SIZE(sysclks); ptr++)
- s3c_register_clksrc(sysclks[ptr], 1);
-
- s3c24xx_register_clocks(clk_cdev, ARRAY_SIZE(clk_cdev));
- for (cnt = 0; cnt < ARRAY_SIZE(clk_cdev); cnt++)
- s3c_disable_clocks(clk_cdev[cnt], 1);
-
- s3c_register_clksrc(clksrcs, ARRAY_SIZE(clksrcs));
- s3c_register_clocks(init_clocks, ARRAY_SIZE(init_clocks));
- for (ptr = 0; ptr < ARRAY_SIZE(clksrc_cdev); ptr++)
- s3c_register_clksrc(clksrc_cdev[ptr], 1);
-
- s3c_register_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
- s3c_disable_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
- clkdev_add_table(s5p6440_clk_lookup, ARRAY_SIZE(s5p6440_clk_lookup));
-
- s3c24xx_register_clock(&dummy_apb_pclk);
-}