*
* Copyright (C) 2013, Texas Instruments, Incorporated
*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR /PURPOSE. See the
- * GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#define OSC_SRC_CTRL (PLL_SUBSYS_BASE + 0x2C0)
-/* PRCM */
-#define CM_DEFAULT_BASE (PRCM_BASE + 0x0500)
-
-struct cm_def {
- unsigned int resv0[2];
- unsigned int l3fastclkstctrl;
- unsigned int resv1[1];
- unsigned int pciclkstctrl;
- unsigned int resv2[1];
- unsigned int ducaticlkstctrl;
- unsigned int resv3[1];
- unsigned int emif0clkctrl;
- unsigned int emif1clkctrl;
- unsigned int dmmclkctrl;
- unsigned int fwclkctrl;
- unsigned int resv4[10];
- unsigned int usbclkctrl;
- unsigned int resv5[1];
- unsigned int sataclkctrl;
- unsigned int resv6[4];
- unsigned int ducaticlkctrl;
- unsigned int pciclkctrl;
-};
+#define ENET_CLKCTRL_CMPL 0x30000
-#define CM_ALWON_BASE (PRCM_BASE + 0x1400)
-
-struct cm_alwon {
- unsigned int l3slowclkstctrl;
- unsigned int ethclkstctrl;
- unsigned int l3medclkstctrl;
- unsigned int mmu_clkstctrl;
- unsigned int mmucfg_clkstctrl;
- unsigned int ocmc0clkstctrl;
- unsigned int vcpclkstctrl;
- unsigned int mpuclkstctrl;
- unsigned int sysclk4clkstctrl;
- unsigned int sysclk5clkstctrl;
- unsigned int sysclk6clkstctrl;
- unsigned int rtcclkstctrl;
- unsigned int l3fastclkstctrl;
- unsigned int resv0[67];
- unsigned int mcasp0clkctrl;
- unsigned int mcasp1clkctrl;
- unsigned int mcasp2clkctrl;
- unsigned int mcbspclkctrl;
- unsigned int uart0clkctrl;
- unsigned int uart1clkctrl;
- unsigned int uart2clkctrl;
- unsigned int gpio0clkctrl;
- unsigned int gpio1clkctrl;
- unsigned int i2c0clkctrl;
- unsigned int i2c1clkctrl;
- unsigned int mcasp345clkctrl;
- unsigned int atlclkctrl;
- unsigned int mlbclkctrl;
- unsigned int pataclkctrl;
- unsigned int resv1[1];
- unsigned int uart3clkctrl;
- unsigned int uart4clkctrl;
- unsigned int uart5clkctrl;
- unsigned int wdtimerclkctrl;
- unsigned int spiclkctrl;
- unsigned int mailboxclkctrl;
- unsigned int spinboxclkctrl;
- unsigned int mmudataclkctrl;
- unsigned int resv2[2];
- unsigned int mmucfgclkctrl;
- unsigned int resv3[2];
- unsigned int ocmc0clkctrl;
- unsigned int vcpclkctrl;
- unsigned int resv4[2];
- unsigned int controlclkctrl;
- unsigned int resv5[2];
- unsigned int gpmcclkctrl;
- unsigned int ethernet0clkctrl;
- unsigned int resv6[1];
- unsigned int mpuclkctrl;
- unsigned int debugssclkctrl;
- unsigned int l3clkctrl;
- unsigned int l4hsclkctrl;
- unsigned int l4lsclkctrl;
- unsigned int rtcclkctrl;
- unsigned int tpccclkctrl;
- unsigned int tptc0clkctrl;
- unsigned int tptc1clkctrl;
- unsigned int tptc2clkctrl;
- unsigned int tptc3clkctrl;
- unsigned int resv7[4];
- unsigned int dcan01clkctrl;
- unsigned int mmchs0clkctrl;
- unsigned int mmchs1clkctrl;
- unsigned int mmchs2clkctrl;
- unsigned int custefuseclkctrl;
+#define SATA_PLL_BASE (CTRL_BASE + 0x0720)
+
+struct sata_pll {
+ unsigned int pllcfg0;
+ unsigned int pllcfg1;
+ unsigned int pllcfg2;
+ unsigned int pllcfg3;
+ unsigned int pllcfg4;
+ unsigned int pllstatus;
+ unsigned int rxstatus;
+ unsigned int txstatus;
+ unsigned int testcfg;
};
+#define SEL_IN_FREQ (0x1 << 31)
+#define DIGCLRZ (0x1 << 30)
+#define ENDIGLDO (0x1 << 4)
+#define APLL_CP_CURR (0x1 << 3)
+#define ENBGSC_REF (0x1 << 2)
+#define ENPLLLDO (0x1 << 1)
+#define ENPLL (0x1 << 0)
+
+#define SATA_PLLCFG0_1 (SEL_IN_FREQ | ENBGSC_REF)
+#define SATA_PLLCFG0_2 (SEL_IN_FREQ | ENDIGLDO | ENBGSC_REF)
+#define SATA_PLLCFG0_3 (SEL_IN_FREQ | ENDIGLDO | ENBGSC_REF | ENPLLLDO)
+#define SATA_PLLCFG0_4 (SEL_IN_FREQ | DIGCLRZ | ENDIGLDO | ENBGSC_REF | \
+ ENPLLLDO | ENPLL)
+
+#define PLL_LOCK (0x1 << 0)
+
+#define ENSATAMODE (0x1 << 31)
+#define PLLREFSEL (0x1 << 30)
+#define MDIVINT (0x4b << 18)
+#define EN_CLKAUX (0x1 << 5)
+#define EN_CLK125M (0x1 << 4)
+#define EN_CLK100M (0x1 << 3)
+#define EN_CLK50M (0x1 << 2)
+
+#define SATA_PLLCFG1 (ENSATAMODE | \
+ PLLREFSEL | \
+ MDIVINT | \
+ EN_CLKAUX | \
+ EN_CLK125M | \
+ EN_CLK100M | \
+ EN_CLK50M)
+
+#define DIGLDO_EN_CAPLESSMODE (0x1 << 22)
+#define PLLDO_EN_LDO_STABLE (0x1 << 11)
+#define PLLDO_EN_BUF_CUR (0x1 << 7)
+#define PLLDO_EN_LP (0x1 << 6)
+#define PLLDO_CTRL_TRIM_1_4V (0x10 << 1)
+
+#define SATA_PLLCFG3 (DIGLDO_EN_CAPLESSMODE | \
+ PLLDO_EN_LDO_STABLE | \
+ PLLDO_EN_BUF_CUR | \
+ PLLDO_EN_LP | \
+ PLLDO_CTRL_TRIM_1_4V)
const struct cm_alwon *cmalwon = (struct cm_alwon *)CM_ALWON_BASE;
const struct cm_def *cmdef = (struct cm_def *)CM_DEFAULT_BASE;
+const struct sata_pll *spll = (struct sata_pll *)SATA_PLL_BASE;
/*
* Enable the peripheral clock for required peripherals
*/
static void enable_per_clocks(void)
{
- /* UART0 */
- writel(PRCM_MOD_EN, &cmalwon->uart0clkctrl);
- while (readl(&cmalwon->uart0clkctrl) != PRCM_MOD_EN)
- ;
-
/* HSMMC1 */
writel(PRCM_MOD_EN, &cmalwon->mmchs1clkctrl);
while (readl(&cmalwon->mmchs1clkctrl) != PRCM_MOD_EN)
;
+
+ /* Ethernet */
+ writel(PRCM_MOD_EN, &cmalwon->ethclkstctrl);
+ writel(PRCM_MOD_EN, &cmalwon->ethernet0clkctrl);
+ while ((readl(&cmalwon->ethernet0clkctrl) & ENET_CLKCTRL_CMPL) != 0)
+ ;
+ writel(PRCM_MOD_EN, &cmalwon->ethernet1clkctrl);
+ while ((readl(&cmalwon->ethernet1clkctrl) & ENET_CLKCTRL_CMPL) != 0)
+ ;
+
+ /* RTC clocks */
+ writel(PRCM_MOD_EN, &cmalwon->rtcclkstctrl);
+ writel(PRCM_MOD_EN, &cmalwon->rtcclkctrl);
+ while (readl(&cmalwon->rtcclkctrl) != PRCM_MOD_EN)
+ ;
}
/*
static u32 pll_sigma_delta_val(u32 clkout_dco)
{
u32 sig_val = 0;
- float frac_div;
- frac_div = (float) clkout_dco / 250;
- frac_div = frac_div + 0.90;
- sig_val = (int)frac_div;
+ sig_val = (clkout_dco + 225) / 250;
sig_val = sig_val << 24;
return sig_val;
pll_config(DDR_PLL_BASE, DDR_N, DDR_M, DDR_M2, DDR_CLKCTRL, 1);
}
-void enable_emif_clocks(void) {};
+void sata_pll_config(void)
+{
+ /*
+ * This sequence for configuring the SATA PLL
+ * resident in the control module is documented
+ * in TI8148 TRM section 21.3.1
+ */
+ writel(SATA_PLLCFG1, &spll->pllcfg1);
+ udelay(50);
+
+ writel(SATA_PLLCFG3, &spll->pllcfg3);
+ udelay(50);
+
+ writel(SATA_PLLCFG0_1, &spll->pllcfg0);
+ udelay(50);
+
+ writel(SATA_PLLCFG0_2, &spll->pllcfg0);
+ udelay(50);
+
+ writel(SATA_PLLCFG0_3, &spll->pllcfg0);
+ udelay(50);
+
+ writel(SATA_PLLCFG0_4, &spll->pllcfg0);
+ udelay(50);
+
+ while (((readl(&spll->pllstatus) & PLL_LOCK) == 0))
+ ;
+}
void enable_dmm_clocks(void)
{
;
}
+void setup_clocks_for_console(void)
+{
+ unlock_pll_control_mmr();
+ /* UART0 */
+ writel(PRCM_MOD_EN, &cmalwon->uart0clkctrl);
+ while (readl(&cmalwon->uart0clkctrl) != PRCM_MOD_EN)
+ ;
+}
/*
* Configure the PLL/PRCM for necessary peripherals
*/
-void pll_init()
+void prcm_init(void)
{
- unlock_pll_control_mmr();
-
/* Enable the control module */
writel(PRCM_MOD_EN, &cmalwon->controlclkctrl);
+ /* Configure PLLs */
mpu_pll_config();
-
l3_pll_config();
+ sata_pll_config();
/* Enable the required peripherals */
enable_per_clocks();
projects / karo-tx-uboot.git / blobdiff