* Richard Woodruff <r-woodruff2@ti.com>
* Syed Mohammed Khasim <khasim@ti.com>
*
- * 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>
#include <asm/arch/sys_proto.h>
#include <asm/arch/cpu.h>
#include <asm/arch/clock.h>
+#include <power/tps65910.h>
+#include <linux/compiler.h>
-static struct ctrl_stat *cstat = (struct ctrl_stat *)CTRL_BASE;
+struct ctrl_stat *cstat = (struct ctrl_stat *)CTRL_BASE;
/**
* get_cpu_rev(void) - extract rev info
return partnum;
}
-/**
- * get_board_rev() - setup to pass kernel board revision information
- * returns:(bit[0-3] sub version, higher bit[7-4] is higher version)
- */
-u32 get_board_rev(void)
-{
- return BOARD_REV_ID;
-}
-
/**
* get_device_type(): tell if GP/HS/EMU/TST
*/
return mode;
}
-#define SYSBOOT_FREQ_SHIFT 22
-#define SYSBOOT_FREQ_MASK (3 << SYSBOOT_FREQ_SHIFT)
-
-static unsigned long bootfreqs[] = {
- 19200000,
- 24000000,
- 25000000,
- 26000000,
+#ifdef CONFIG_DISPLAY_CPUINFO
+static char *cpu_revs[] = {
+ "1.0",
+ "2.0",
+ "2.1",
};
-u32 get_sysboot_freq(void)
-{
- int mode;
- mode = readl(&cstat->statusreg) & SYSBOOT_FREQ_MASK;
- return bootfreqs[mode >> SYSBOOT_FREQ_SHIFT];
-}
+static char *dev_types[] = {
+ "TST",
+ "EMU",
+ "HS",
+ "GP",
+};
-#ifdef CONFIG_DISPLAY_CPUINFO
/**
* Print CPU information
*/
int print_cpuinfo(void)
{
- char *cpu_s, *sec_s;
- unsigned long clk;
- const struct cm_wkuppll *cmwkup = (struct cm_wkuppll *)CM_WKUP;
+ char *cpu_s, *sec_s, *rev_s;
switch (get_cpu_type()) {
- case AM335X_ID:
+ case AM335X:
cpu_s = "AM335X";
break;
+ case TI81XX:
+ cpu_s = "TI81XX";
+ break;
default:
- cpu_s = "Unknown cpu type";
+ cpu_s = "Unknown CPU type";
}
- switch (get_device_type()) {
- case TST_DEVICE:
- sec_s = "TST";
- break;
- case EMU_DEVICE:
- sec_s = "EMU";
- break;
- case HS_DEVICE:
- sec_s = "HS";
- break;
- case GP_DEVICE:
- sec_s = "GP";
- break;
- default:
+ if (get_cpu_rev() < ARRAY_SIZE(cpu_revs))
+ rev_s = cpu_revs[get_cpu_rev()];
+ else
+ rev_s = "?";
+
+ if (get_device_type() < ARRAY_SIZE(dev_types))
+ sec_s = dev_types[get_device_type()];
+ else
sec_s = "?";
- }
- printf("%s-%s rev %d\n",
- cpu_s, sec_s, get_cpu_rev());
-
- clk = get_sysboot_freq();
- printf("OSC clk: %4lu.%03lu MHz\n",
- clk / 1000000, clk / 1000 % 1000);
- clk = clk_get_rate(cmwkup, mpu);
- printf("MPU clk: %4lu.%03lu MHz\n",
- clk / 1000000, clk / 1000 % 1000);
- clk = clk_get_rate(cmwkup, ddr);
- printf("DDR clk: %4lu.%03lu MHz\n",
- clk / 1000000, clk / 1000 % 1000);
- clk = clk_get_rate(cmwkup, per);
- printf("PER clk: %4lu.%03lu MHz\n",
- clk / 1000000, clk / 1000 % 1000);
-#ifdef CONFIG_LCD
- clk = clk_get_rate(cmwkup, disp);
- printf("LCD clk: %4lu.%03lu MHz\n",
- clk / 1000000, clk / 1000 % 1000);
-#endif
+ printf("%s-%s rev %s\n", cpu_s, sec_s, rev_s);
return 0;
}
#endif /* CONFIG_DISPLAY_CPUINFO */
+
+#ifdef CONFIG_AM33XX
+int am335x_get_efuse_mpu_max_freq(struct ctrl_dev *cdev)
+{
+ int sil_rev;
+
+ sil_rev = readl(&cdev->deviceid) >> 28;
+
+ if (sil_rev == 1)
+ /* PG 2.0, efuse may not be set. */
+ return MPUPLL_M_800;
+ else if (sil_rev >= 2) {
+ /* Check what the efuse says our max speed is. */
+ int efuse_arm_mpu_max_freq;
+ efuse_arm_mpu_max_freq = readl(&cdev->efuse_sma);
+ switch ((efuse_arm_mpu_max_freq & DEVICE_ID_MASK)) {
+ case AM335X_ZCZ_1000:
+ return MPUPLL_M_1000;
+ case AM335X_ZCZ_800:
+ return MPUPLL_M_800;
+ case AM335X_ZCZ_720:
+ return MPUPLL_M_720;
+ case AM335X_ZCZ_600:
+ case AM335X_ZCE_600:
+ return MPUPLL_M_600;
+ case AM335X_ZCZ_300:
+ case AM335X_ZCE_300:
+ return MPUPLL_M_300;
+ }
+ }
+
+ /* PG 1.0 or otherwise unknown, use the PG1.0 max */
+ return MPUPLL_M_720;
+}
+
+int am335x_get_tps65910_mpu_vdd(int sil_rev, int frequency)
+{
+ /* For PG2.1 and later, we have one set of values. */
+ if (sil_rev >= 2) {
+ switch (frequency) {
+ case MPUPLL_M_1000:
+ return TPS65910_OP_REG_SEL_1_3_2_5;
+ case MPUPLL_M_800:
+ return TPS65910_OP_REG_SEL_1_2_6;
+ case MPUPLL_M_720:
+ return TPS65910_OP_REG_SEL_1_2_0;
+ case MPUPLL_M_600:
+ case MPUPLL_M_300:
+ return TPS65910_OP_REG_SEL_1_1_3;
+ }
+ }
+
+ /* Default to PG1.0/PG2.0 values. */
+ return TPS65910_OP_REG_SEL_1_1_3;
+}
+#endif
projects / karo-tx-uboot.git / blobdiff