* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
+#include <linux/bitops.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/io.h>
#include <linux/sh_clk.h>
#include <linux/clkdev.h>
+#include <mach/clock.h>
#include <mach/common.h>
+#define MD(nr) BIT(nr)
+
#define FRQMR IOMEM(0xffc80014)
#define MSTPCR0 IOMEM(0xffc80030)
#define MSTPCR1 IOMEM(0xffc80034)
#define MSTPCR6 IOMEM(0xffc80058)
#define MSTPCR7 IOMEM(0xffc80040)
+#define MODEMR 0xffcc0020
+
+
/* ioremap() through clock mapping mandatory to avoid
* collision with ARM coherent DMA virtual memory range.
*/
* from the platform code.
*/
static struct clk plla_clk = {
- .rate = 1500000000,
+ /* .rate will be updated on r8a7779_clock_init() */
.mapping = &cpg_mapping,
};
+/*
+ * clock ratio of these clock will be updated
+ * on r8a7779_clock_init()
+ */
+SH_FIXED_RATIO_CLK_SET(clkz_clk, plla_clk, 1, 1);
+SH_FIXED_RATIO_CLK_SET(clkzs_clk, plla_clk, 1, 1);
+SH_FIXED_RATIO_CLK_SET(clki_clk, plla_clk, 1, 1);
+SH_FIXED_RATIO_CLK_SET(clks_clk, plla_clk, 1, 1);
+SH_FIXED_RATIO_CLK_SET(clks1_clk, plla_clk, 1, 1);
+SH_FIXED_RATIO_CLK_SET(clks3_clk, plla_clk, 1, 1);
+SH_FIXED_RATIO_CLK_SET(clks4_clk, plla_clk, 1, 1);
+SH_FIXED_RATIO_CLK_SET(clkb_clk, plla_clk, 1, 1);
+SH_FIXED_RATIO_CLK_SET(clkout_clk, plla_clk, 1, 1);
+SH_FIXED_RATIO_CLK_SET(clkp_clk, plla_clk, 1, 1);
+SH_FIXED_RATIO_CLK_SET(clkg_clk, plla_clk, 1, 1);
+
static struct clk *main_clks[] = {
&plla_clk,
-};
-
-static int divisors[] = { 0, 0, 0, 6, 8, 12, 16, 0, 24, 32, 36, 0, 0, 0, 0, 0 };
-
-static struct clk_div_mult_table div4_div_mult_table = {
- .divisors = divisors,
- .nr_divisors = ARRAY_SIZE(divisors),
-};
-
-static struct clk_div4_table div4_table = {
- .div_mult_table = &div4_div_mult_table,
-};
-
-enum { DIV4_S, DIV4_OUT, DIV4_S4, DIV4_S3, DIV4_S1, DIV4_P, DIV4_NR };
-
-static struct clk div4_clks[DIV4_NR] = {
- [DIV4_S] = SH_CLK_DIV4(&plla_clk, FRQMR, 20,
- 0x0018, CLK_ENABLE_ON_INIT),
- [DIV4_OUT] = SH_CLK_DIV4(&plla_clk, FRQMR, 16,
- 0x0700, CLK_ENABLE_ON_INIT),
- [DIV4_S4] = SH_CLK_DIV4(&plla_clk, FRQMR, 12,
- 0x0040, CLK_ENABLE_ON_INIT),
- [DIV4_S3] = SH_CLK_DIV4(&plla_clk, FRQMR, 8,
- 0x0010, CLK_ENABLE_ON_INIT),
- [DIV4_S1] = SH_CLK_DIV4(&plla_clk, FRQMR, 4,
- 0x0060, CLK_ENABLE_ON_INIT),
- [DIV4_P] = SH_CLK_DIV4(&plla_clk, FRQMR, 0,
- 0x0300, CLK_ENABLE_ON_INIT),
+ &clkz_clk,
+ &clkzs_clk,
+ &clki_clk,
+ &clks_clk,
+ &clks1_clk,
+ &clks3_clk,
+ &clks4_clk,
+ &clkb_clk,
+ &clkout_clk,
+ &clkp_clk,
+ &clkg_clk,
};
enum { MSTP323, MSTP322, MSTP321, MSTP320,
MSTP_NR };
static struct clk mstp_clks[MSTP_NR] = {
- [MSTP323] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR3, 23, 0), /* SDHI0 */
- [MSTP322] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR3, 22, 0), /* SDHI1 */
- [MSTP321] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR3, 21, 0), /* SDHI2 */
- [MSTP320] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR3, 20, 0), /* SDHI3 */
- [MSTP115] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR1, 15, 0), /* SATA */
- [MSTP103] = SH_CLK_MSTP32(&div4_clks[DIV4_S], MSTPCR1, 3, 0), /* DU */
- [MSTP101] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR1, 1, 0), /* USB2 */
- [MSTP100] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR1, 0, 0), /* USB0/1 */
- [MSTP030] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR0, 30, 0), /* I2C0 */
- [MSTP029] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR0, 29, 0), /* I2C1 */
- [MSTP028] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR0, 28, 0), /* I2C2 */
- [MSTP027] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR0, 27, 0), /* I2C3 */
- [MSTP026] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR0, 26, 0), /* SCIF0 */
- [MSTP025] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR0, 25, 0), /* SCIF1 */
- [MSTP024] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR0, 24, 0), /* SCIF2 */
- [MSTP023] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR0, 23, 0), /* SCIF3 */
- [MSTP022] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR0, 22, 0), /* SCIF4 */
- [MSTP021] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR0, 21, 0), /* SCIF5 */
- [MSTP016] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR0, 16, 0), /* TMU0 */
- [MSTP015] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR0, 15, 0), /* TMU1 */
- [MSTP014] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR0, 14, 0), /* TMU2 */
- [MSTP007] = SH_CLK_MSTP32(&div4_clks[DIV4_S], MSTPCR0, 7, 0), /* HSPI */
-};
-
-static unsigned long mul4_recalc(struct clk *clk)
-{
- return clk->parent->rate * 4;
-}
-
-static struct sh_clk_ops mul4_clk_ops = {
- .recalc = mul4_recalc,
-};
-
-struct clk clkz_clk = {
- .ops = &mul4_clk_ops,
- .parent = &div4_clks[DIV4_S],
-};
-
-struct clk clkzs_clk = {
- /* clks x 4 / 4 = clks */
- .parent = &div4_clks[DIV4_S],
-};
-
-static struct clk *late_main_clks[] = {
- &clkz_clk,
- &clkzs_clk,
+ [MSTP323] = SH_CLK_MSTP32(&clkp_clk, MSTPCR3, 23, 0), /* SDHI0 */
+ [MSTP322] = SH_CLK_MSTP32(&clkp_clk, MSTPCR3, 22, 0), /* SDHI1 */
+ [MSTP321] = SH_CLK_MSTP32(&clkp_clk, MSTPCR3, 21, 0), /* SDHI2 */
+ [MSTP320] = SH_CLK_MSTP32(&clkp_clk, MSTPCR3, 20, 0), /* SDHI3 */
+ [MSTP115] = SH_CLK_MSTP32(&clkp_clk, MSTPCR1, 15, 0), /* SATA */
+ [MSTP103] = SH_CLK_MSTP32(&clks_clk, MSTPCR1, 3, 0), /* DU */
+ [MSTP101] = SH_CLK_MSTP32(&clkp_clk, MSTPCR1, 1, 0), /* USB2 */
+ [MSTP100] = SH_CLK_MSTP32(&clkp_clk, MSTPCR1, 0, 0), /* USB0/1 */
+ [MSTP030] = SH_CLK_MSTP32(&clkp_clk, MSTPCR0, 30, 0), /* I2C0 */
+ [MSTP029] = SH_CLK_MSTP32(&clkp_clk, MSTPCR0, 29, 0), /* I2C1 */
+ [MSTP028] = SH_CLK_MSTP32(&clkp_clk, MSTPCR0, 28, 0), /* I2C2 */
+ [MSTP027] = SH_CLK_MSTP32(&clkp_clk, MSTPCR0, 27, 0), /* I2C3 */
+ [MSTP026] = SH_CLK_MSTP32(&clkp_clk, MSTPCR0, 26, 0), /* SCIF0 */
+ [MSTP025] = SH_CLK_MSTP32(&clkp_clk, MSTPCR0, 25, 0), /* SCIF1 */
+ [MSTP024] = SH_CLK_MSTP32(&clkp_clk, MSTPCR0, 24, 0), /* SCIF2 */
+ [MSTP023] = SH_CLK_MSTP32(&clkp_clk, MSTPCR0, 23, 0), /* SCIF3 */
+ [MSTP022] = SH_CLK_MSTP32(&clkp_clk, MSTPCR0, 22, 0), /* SCIF4 */
+ [MSTP021] = SH_CLK_MSTP32(&clkp_clk, MSTPCR0, 21, 0), /* SCIF5 */
+ [MSTP016] = SH_CLK_MSTP32(&clkp_clk, MSTPCR0, 16, 0), /* TMU0 */
+ [MSTP015] = SH_CLK_MSTP32(&clkp_clk, MSTPCR0, 15, 0), /* TMU1 */
+ [MSTP014] = SH_CLK_MSTP32(&clkp_clk, MSTPCR0, 14, 0), /* TMU2 */
+ [MSTP007] = SH_CLK_MSTP32(&clks_clk, MSTPCR0, 7, 0), /* HSPI */
};
static struct clk_lookup lookups[] = {
CLKDEV_CON_ID("clkzs_clk", &clkzs_clk),
/* DIV4 clocks */
- CLKDEV_CON_ID("shyway_clk", &div4_clks[DIV4_S]),
- CLKDEV_CON_ID("bus_clk", &div4_clks[DIV4_OUT]),
- CLKDEV_CON_ID("shyway4_clk", &div4_clks[DIV4_S4]),
- CLKDEV_CON_ID("shyway3_clk", &div4_clks[DIV4_S3]),
- CLKDEV_CON_ID("shyway1_clk", &div4_clks[DIV4_S1]),
- CLKDEV_CON_ID("peripheral_clk", &div4_clks[DIV4_P]),
+ CLKDEV_CON_ID("shyway_clk", &clks_clk),
+ CLKDEV_CON_ID("bus_clk", &clkout_clk),
+ CLKDEV_CON_ID("shyway4_clk", &clks4_clk),
+ CLKDEV_CON_ID("shyway3_clk", &clks3_clk),
+ CLKDEV_CON_ID("shyway1_clk", &clks1_clk),
+ CLKDEV_CON_ID("peripheral_clk", &clkp_clk),
/* MSTP32 clocks */
CLKDEV_DEV_ID("sata_rcar", &mstp_clks[MSTP115]), /* SATA */
void __init r8a7779_clock_init(void)
{
+ void __iomem *modemr = ioremap_nocache(MODEMR, PAGE_SIZE);
+ u32 mode;
int k, ret = 0;
+ BUG_ON(!modemr);
+ mode = ioread32(modemr);
+ iounmap(modemr);
+
+ if (mode & MD(1)) {
+ plla_clk.rate = 1500000000;
+
+ SH_CLK_SET_RATIO(&clkz_clk_ratio, 2, 3);
+ SH_CLK_SET_RATIO(&clkzs_clk_ratio, 1, 6);
+ SH_CLK_SET_RATIO(&clki_clk_ratio, 1, 2);
+ SH_CLK_SET_RATIO(&clks_clk_ratio, 1, 6);
+ SH_CLK_SET_RATIO(&clks1_clk_ratio, 1, 12);
+ SH_CLK_SET_RATIO(&clks3_clk_ratio, 1, 8);
+ SH_CLK_SET_RATIO(&clks4_clk_ratio, 1, 16);
+ SH_CLK_SET_RATIO(&clkp_clk_ratio, 1, 24);
+ SH_CLK_SET_RATIO(&clkg_clk_ratio, 1, 24);
+ if (mode & MD(2)) {
+ SH_CLK_SET_RATIO(&clkb_clk_ratio, 1, 36);
+ SH_CLK_SET_RATIO(&clkout_clk_ratio, 1, 36);
+ } else {
+ SH_CLK_SET_RATIO(&clkb_clk_ratio, 1, 24);
+ SH_CLK_SET_RATIO(&clkout_clk_ratio, 1, 24);
+ }
+ } else {
+ plla_clk.rate = 1600000000;
+
+ SH_CLK_SET_RATIO(&clkz_clk_ratio, 1, 2);
+ SH_CLK_SET_RATIO(&clkzs_clk_ratio, 1, 8);
+ SH_CLK_SET_RATIO(&clki_clk_ratio, 1, 2);
+ SH_CLK_SET_RATIO(&clks_clk_ratio, 1, 8);
+ SH_CLK_SET_RATIO(&clks1_clk_ratio, 1, 16);
+ SH_CLK_SET_RATIO(&clks3_clk_ratio, 1, 8);
+ SH_CLK_SET_RATIO(&clks4_clk_ratio, 1, 16);
+ SH_CLK_SET_RATIO(&clkp_clk_ratio, 1, 32);
+ SH_CLK_SET_RATIO(&clkg_clk_ratio, 1, 24);
+ if (mode & MD(2)) {
+ SH_CLK_SET_RATIO(&clkb_clk_ratio, 1, 32);
+ SH_CLK_SET_RATIO(&clkout_clk_ratio, 1, 32);
+ } else {
+ SH_CLK_SET_RATIO(&clkb_clk_ratio, 1, 24);
+ SH_CLK_SET_RATIO(&clkout_clk_ratio, 1, 24);
+ }
+ }
+
for (k = 0; !ret && (k < ARRAY_SIZE(main_clks)); k++)
ret = clk_register(main_clks[k]);
- if (!ret)
- ret = sh_clk_div4_register(div4_clks, DIV4_NR, &div4_table);
-
if (!ret)
ret = sh_clk_mstp_register(mstp_clks, MSTP_NR);
- for (k = 0; !ret && (k < ARRAY_SIZE(late_main_clks)); k++)
- ret = clk_register(late_main_clks[k]);
-
clkdev_add_table(lookups, ARRAY_SIZE(lookups));
if (!ret)
projects / ~andy / linux / commitdiff