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-rw-r--r--arch/arm/cpu/armv7/keystone/clock.c272
1 files changed, 0 insertions, 272 deletions
diff --git a/arch/arm/cpu/armv7/keystone/clock.c b/arch/arm/cpu/armv7/keystone/clock.c
deleted file mode 100644
index d13fbc1a4b..0000000000
--- a/arch/arm/cpu/armv7/keystone/clock.c
+++ /dev/null
@@ -1,272 +0,0 @@
-/*
- * Keystone2: pll initialization
- *
- * (C) Copyright 2012-2014
- * Texas Instruments Incorporated, <www.ti.com>
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <asm/arch/clock.h>
-#include <asm/arch/clock_defs.h>
-
-#define MAX_SPEEDS 13
-
-static void wait_for_completion(const struct pll_init_data *data)
-{
- int i;
- for (i = 0; i < 100; i++) {
- sdelay(450);
- if ((pllctl_reg_read(data->pll, stat) & PLLSTAT_GO) == 0)
- break;
- }
-}
-
-void init_pll(const struct pll_init_data *data)
-{
- u32 tmp, tmp_ctl, pllm, plld, pllod, bwadj;
-
- pllm = data->pll_m - 1;
- plld = (data->pll_d - 1) & PLL_DIV_MASK;
- pllod = (data->pll_od - 1) & PLL_CLKOD_MASK;
-
- if (data->pll == MAIN_PLL) {
- /* The requered delay before main PLL configuration */
- sdelay(210000);
-
- tmp = pllctl_reg_read(data->pll, secctl);
-
- if (tmp & (PLLCTL_BYPASS)) {
- setbits_le32(keystone_pll_regs[data->pll].reg1,
- BIT(MAIN_ENSAT_OFFSET));
-
- pllctl_reg_clrbits(data->pll, ctl, PLLCTL_PLLEN |
- PLLCTL_PLLENSRC);
- sdelay(340);
-
- pllctl_reg_setbits(data->pll, secctl, PLLCTL_BYPASS);
- pllctl_reg_setbits(data->pll, ctl, PLLCTL_PLLPWRDN);
- sdelay(21000);
-
- pllctl_reg_clrbits(data->pll, ctl, PLLCTL_PLLPWRDN);
- } else {
- pllctl_reg_clrbits(data->pll, ctl, PLLCTL_PLLEN |
- PLLCTL_PLLENSRC);
- sdelay(340);
- }
-
- pllctl_reg_write(data->pll, mult, pllm & PLLM_MULT_LO_MASK);
-
- clrsetbits_le32(keystone_pll_regs[data->pll].reg0,
- PLLM_MULT_HI_SMASK, (pllm << 6));
-
- /* Set the BWADJ (12 bit field) */
- tmp_ctl = pllm >> 1; /* Divide the pllm by 2 */
- clrsetbits_le32(keystone_pll_regs[data->pll].reg0,
- PLL_BWADJ_LO_SMASK,
- (tmp_ctl << PLL_BWADJ_LO_SHIFT));
- clrsetbits_le32(keystone_pll_regs[data->pll].reg1,
- PLL_BWADJ_HI_MASK,
- (tmp_ctl >> 8));
-
- /*
- * Set the pll divider (6 bit field) *
- * PLLD[5:0] is located in MAINPLLCTL0
- */
- clrsetbits_le32(keystone_pll_regs[data->pll].reg0,
- PLL_DIV_MASK, plld);
-
- /* Set the OUTPUT DIVIDE (4 bit field) in SECCTL */
- pllctl_reg_rmw(data->pll, secctl, PLL_CLKOD_SMASK,
- (pllod << PLL_CLKOD_SHIFT));
- wait_for_completion(data);
-
- pllctl_reg_write(data->pll, div1, PLLM_RATIO_DIV1);
- pllctl_reg_write(data->pll, div2, PLLM_RATIO_DIV2);
- pllctl_reg_write(data->pll, div3, PLLM_RATIO_DIV3);
- pllctl_reg_write(data->pll, div4, PLLM_RATIO_DIV4);
- pllctl_reg_write(data->pll, div5, PLLM_RATIO_DIV5);
-
- pllctl_reg_setbits(data->pll, alnctl, 0x1f);
-
- /*
- * Set GOSET bit in PLLCMD to initiate the GO operation
- * to change the divide
- */
- pllctl_reg_setbits(data->pll, cmd, PLLSTAT_GO);
- sdelay(1500); /* wait for the phase adj */
- wait_for_completion(data);
-
- /* Reset PLL */
- pllctl_reg_setbits(data->pll, ctl, PLLCTL_PLLRST);
- sdelay(21000); /* Wait for a minimum of 7 us*/
- pllctl_reg_clrbits(data->pll, ctl, PLLCTL_PLLRST);
- sdelay(105000); /* Wait for PLL Lock time (min 50 us) */
-
- pllctl_reg_clrbits(data->pll, secctl, PLLCTL_BYPASS);
-
- tmp = pllctl_reg_setbits(data->pll, ctl, PLLCTL_PLLEN);
-
-#ifndef CONFIG_SOC_K2E
- } else if (data->pll == TETRIS_PLL) {
- bwadj = pllm >> 1;
- /* 1.5 Set PLLCTL0[BYPASS] =1 (enable bypass), */
- setbits_le32(keystone_pll_regs[data->pll].reg0, PLLCTL_BYPASS);
- /*
- * Set CHIPMISCCTL1[13] = 0 (enable glitchfree bypass)
- * only applicable for Kepler
- */
- clrbits_le32(KS2_MISC_CTRL, KS2_ARM_PLL_EN);
- /* 2 In PLLCTL1, write PLLRST = 1 (PLL is reset) */
- setbits_le32(keystone_pll_regs[data->pll].reg1 ,
- PLL_PLLRST | PLLCTL_ENSAT);
-
- /*
- * 3 Program PLLM and PLLD in PLLCTL0 register
- * 4 Program BWADJ[7:0] in PLLCTL0 and BWADJ[11:8] in
- * PLLCTL1 register. BWADJ value must be set
- * to ((PLLM + 1) >> 1) – 1)
- */
- tmp = ((bwadj & PLL_BWADJ_LO_MASK) << PLL_BWADJ_LO_SHIFT) |
- (pllm << 6) |
- (plld & PLL_DIV_MASK) |
- (pllod << PLL_CLKOD_SHIFT) | PLLCTL_BYPASS;
- __raw_writel(tmp, keystone_pll_regs[data->pll].reg0);
-
- /* Set BWADJ[11:8] bits */
- tmp = __raw_readl(keystone_pll_regs[data->pll].reg1);
- tmp &= ~(PLL_BWADJ_HI_MASK);
- tmp |= ((bwadj>>8) & PLL_BWADJ_HI_MASK);
- __raw_writel(tmp, keystone_pll_regs[data->pll].reg1);
- /*
- * 5 Wait for at least 5 us based on the reference
- * clock (PLL reset time)
- */
- sdelay(21000); /* Wait for a minimum of 7 us*/
-
- /* 6 In PLLCTL1, write PLLRST = 0 (PLL reset is released) */
- clrbits_le32(keystone_pll_regs[data->pll].reg1, PLL_PLLRST);
- /*
- * 7 Wait for at least 500 * REFCLK cycles * (PLLD + 1)
- * (PLL lock time)
- */
- sdelay(105000);
- /* 8 disable bypass */
- clrbits_le32(keystone_pll_regs[data->pll].reg0, PLLCTL_BYPASS);
- /*
- * 9 Set CHIPMISCCTL1[13] = 1 (disable glitchfree bypass)
- * only applicable for Kepler
- */
- setbits_le32(KS2_MISC_CTRL, KS2_ARM_PLL_EN);
-#endif
- } else {
- setbits_le32(keystone_pll_regs[data->pll].reg1, PLLCTL_ENSAT);
- /*
- * process keeps state of Bypass bit while programming
- * all other DDR PLL settings
- */
- tmp = __raw_readl(keystone_pll_regs[data->pll].reg0);
- tmp &= PLLCTL_BYPASS; /* clear everything except Bypass */
-
- /*
- * Set the BWADJ[7:0], PLLD[5:0] and PLLM to PLLCTL0,
- * bypass disabled
- */
- bwadj = pllm >> 1;
- tmp |= ((bwadj & PLL_BWADJ_LO_MASK) << PLL_BWADJ_LO_SHIFT) |
- (pllm << PLL_MULT_SHIFT) |
- (plld & PLL_DIV_MASK) |
- (pllod << PLL_CLKOD_SHIFT);
- __raw_writel(tmp, keystone_pll_regs[data->pll].reg0);
-
- /* Set BWADJ[11:8] bits */
- tmp = __raw_readl(keystone_pll_regs[data->pll].reg1);
- tmp &= ~(PLL_BWADJ_HI_MASK);
- tmp |= ((bwadj >> 8) & PLL_BWADJ_HI_MASK);
-
- __raw_writel(tmp, keystone_pll_regs[data->pll].reg1);
-
- /* Reset bit: bit 14 for both DDR3 & PASS PLL */
- tmp = PLL_PLLRST;
- /* Set RESET bit = 1 */
- setbits_le32(keystone_pll_regs[data->pll].reg1, tmp);
- /* Wait for a minimum of 7 us*/
- sdelay(21000);
- /* Clear RESET bit */
- clrbits_le32(keystone_pll_regs[data->pll].reg1, tmp);
- sdelay(105000);
-
- /* clear BYPASS (Enable PLL Mode) */
- clrbits_le32(keystone_pll_regs[data->pll].reg0, PLLCTL_BYPASS);
- sdelay(21000); /* Wait for a minimum of 7 us*/
- }
-
- /*
- * This is required to provide a delay between multiple
- * consequent PPL configurations
- */
- sdelay(210000);
-}
-
-void init_plls(int num_pll, struct pll_init_data *config)
-{
- int i;
-
- for (i = 0; i < num_pll; i++)
- init_pll(&config[i]);
-}
-
-static int get_max_speed(u32 val, int *speeds)
-{
- int j;
-
- if (!val)
- return speeds[0];
-
- for (j = 1; j < MAX_SPEEDS; j++) {
- if (val == 1)
- return speeds[j];
- val >>= 1;
- }
-
- return SPD800;
-}
-
-#ifdef CONFIG_SOC_K2HK
-static u32 read_efuse_bootrom(void)
-{
- return (cpu_revision() > 1) ? __raw_readl(KS2_EFUSE_BOOTROM) :
- __raw_readl(KS2_REV1_DEVSPEED);
-}
-#else
-static inline u32 read_efuse_bootrom(void)
-{
- return __raw_readl(KS2_EFUSE_BOOTROM);
-}
-#endif
-
-inline int get_max_dev_speed(void)
-{
- return get_max_speed(read_efuse_bootrom() & 0xffff, dev_speeds);
-}
-
-#ifndef CONFIG_SOC_K2E
-inline int get_max_arm_speed(void)
-{
- return get_max_speed((read_efuse_bootrom() >> 16) & 0xffff, arm_speeds);
-}
-#endif
-
-void pass_pll_pa_clk_enable(void)
-{
- u32 reg;
-
- reg = readl(keystone_pll_regs[PASS_PLL].reg1);
-
- reg |= PLLCTL_PAPLL;
- writel(reg, keystone_pll_regs[PASS_PLL].reg1);
-
- /* wait till clock is enabled */
- sdelay(15000);
-}
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