soc/marvell/mvmap2315: Add PMIC driver

Testing: booted successfully.

Change-Id: I168206585f403d2259efe424e563982be661df0b
Signed-off-by: Hakim Giydan <hgiydan@marvell.com>
Reviewed-on: https://review.coreboot.org/16149
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>

5 files changed, 351 insertions, 2 deletions

diff --git a/src/soc/marvell/mvmap2315/Makefile.inc b/src/soc/marvell/mvmap2315/Makefile.inc
index b42d3b3c51..1510815225 100644
--- a/src/soc/marvell/mvmap2315/Makefile.inc
+++ b/src/soc/marvell/mvmap2315/Makefile.inc
@@ -27,6 +27,7 @@ bootblock-y += flash.c
 bootblock-y += load_validate.c
 bootblock-y += media.c
 bootblock-y += pinmux.c
+bootblock-y += pmic.c
 bootblock-y += reset.c
 bootblock-y += timer.c
 bootblock-y += sdram.c
diff --git a/src/soc/marvell/mvmap2315/bootblock.c b/src/soc/marvell/mvmap2315/bootblock.c
index 8d7b0cbfd9..22a8387f7f 100644
--- a/src/soc/marvell/mvmap2315/bootblock.c
+++ b/src/soc/marvell/mvmap2315/bootblock.c
@@ -27,6 +27,7 @@
 #include <soc/bdb.h>
 #include <soc/gic.h>
 #include <soc/load_validate.h>
+#include <soc/pmic.h>
 #include <soc/uart.h>
 
 void bootblock_soc_early_init(void)
@@ -43,6 +44,7 @@ void bootblock_soc_early_init(void)
 void bootblock_soc_init(void)
 {
 	struct bdb_pointer bdb_info;
+	u32 boot_path;
 
 	write32((void *)MVMAP2315_BOOTBLOCK_CB1, 0);
 	write32((void *)MVMAP2315_BOOTBLOCK_CB2, 0);
@@ -54,8 +56,30 @@ void bootblock_soc_init(void)
 
 	apmu_start();
 
-	printk(BIOS_DEBUG, "loading and validating MCU firmware.\n");
-	load_and_validate(&bdb_info, MCU_FIRMWARE);
+	if (!(read32((void *)MVMAP2315_LOWPWR_REG) & MVMAP2315_LOWPWR_FLAG)) {
+		printk(BIOS_DEBUG, "loading and validating MCU firmware.\n");
+		load_and_validate(&bdb_info, MCU_FIRMWARE);
+		mcu_start();
+		boot_path = get_boot_path();
+	} else {
+		printk(BIOS_DEBUG, "Low power restart. Skip MCU code load.\n");
+		boot_path = get_boot_path();
+	}
+
+	switch (boot_path) {
+	case NO_BOOT:
+		no_boot();
+		break;
+	case CHARGING_SCREEN:
+		charging_screen();
+		break;
+	case FULL_BOOT:
+		full_boot();
+		break;
+	}
+
+	printk(BIOS_DEBUG, "Powering up the AP core0.\n");
+	ap_start((void *)MVMAP2315_ROMSTAGE_BASE);
 
 	/* initializing UART1 to free UART0 to be used by romstage */
 	uart_num = 1;
diff --git a/src/soc/marvell/mvmap2315/include/soc/addressmap.h b/src/soc/marvell/mvmap2315/include/soc/addressmap.h
index 99bf901d21..b82b538965 100644
--- a/src/soc/marvell/mvmap2315/include/soc/addressmap.h
+++ b/src/soc/marvell/mvmap2315/include/soc/addressmap.h
@@ -21,6 +21,7 @@
 #define MAX_DRAM_ADDRESS		0x73000000
 
 #define MVMAP2315_CBFS_BASE		0x00400000
+#define MVMAP2315_ROMSTAGE_BASE		0xE0010000
 
 #define MVMAP2315_BOOTBLOCK_CB1		0xE0009510
 #define MVMAP2315_BOOTBLOCK_CB2		0xE0009514
@@ -41,10 +42,12 @@
 #define MVMAP2315_MCU_SECCONFIG_BASE	0xED600000
 #define MVMAP2315_APMU_PWRCTL_BASE	0xE012C000
 #define MVMAP2315_LCM_REGS_BASE		0xE0130000
+#define MVMAP2315_CPU_BASE		0xF0410000
 
 #define MVMAP2315_RAM_BASE		0x00000000
 #define MVMAP2315_DEVICE_BASE		0x80000000
 #define MVMAP2315_FLASH_BASE		0xFE000000
 #define MVMAP2315_LCM_BASE		0xE0000000
+#define MVMAP2315_LOWPWR_REG		0xE0002000
 
 #endif /*  __SOC_MARVELL_MVMAP2315_ADDRESS_MAP_H__ */
diff --git a/src/soc/marvell/mvmap2315/include/soc/pmic.h b/src/soc/marvell/mvmap2315/include/soc/pmic.h
new file mode 100644
index 0000000000..10e22b2de9
--- /dev/null
+++ b/src/soc/marvell/mvmap2315/include/soc/pmic.h
@@ -0,0 +1,196 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2016 Marvell, Inc.
+ *
+ * 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; version 2 of the License.
+ *
+ * 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.
+ */
+
+#ifndef __SOC_MARVELL_MVMAP2315_PMIC_H__
+#define __SOC_MARVELL_MVMAP2315_PMIC_H__
+
+#include <stdint.h>
+
+#include <soc/addressmap.h>
+#include <types.h>
+
+#define MVMAP2315_LOWPWR_FLAG				BIT(4)
+
+#define MVMAP2315_APGENCFG_SYSBARDISABLE		BIT(1)
+#define MVMAP2315_APGENCFG_BROADCASTINNER		BIT(2)
+#define MVMAP2315_APGENCFG_BROADCASTOUTER		BIT(3)
+#define MVMAP2315_APGENCFG_BROADCASTCACHEMAINT		BIT(4)
+#define MVMAP2315_APGENCFG_BROADCASTCACHEMAINTPOU	BIT(5)
+#define MVMAP2315_APCORECFG0_AA64NAA32			BIT(4)
+struct mvmap2315_cpu_regs {
+	u32 fuse00;
+	u32 fuse01;
+	u32 fuse02;
+	u32 fuse03;
+	u32 fuse04;
+	u32 fuse05;
+	u32 fuse06;
+	u32 fuse07;
+	u32 fuse10;
+	u32 fuse11;
+	u32 fuse12;
+	u32 fuse13;
+	u32 fuse14;
+	u32 fuse15;
+	u32 fuse16;
+	u32 fuse17;
+	u8 _reserved0[0x20];
+	u32 fuse20;
+	u32 fuse21;
+	u32 fuse22;
+	u32 fuse23;
+	u32 fuse24;
+	u32 fuse25;
+	u32 fuse26;
+	u32 fuse27;
+	u32 fuse30;
+	u32 fuse31;
+	u32 fuse32;
+	u32 fuse33;
+	u32 fuse34;
+	u32 fuse35;
+	u32 fuse36;
+	u32 fuse37;
+	u32 fuse40;
+	u32 fuse41;
+	u32 fuse42;
+	u32 fuse43;
+	u32 fuse44;
+	u32 fuse45;
+	u32 fuse46;
+	u32 fuse47;
+	u32 fuse50;
+	u32 fuse51;
+	u32 fuse52;
+	u32 fuse53;
+	u32 fuse54;
+	u32 fuse55;
+	u32 fuse56;
+	u32 fuse57;
+	u32 fuse60;
+	u32 fuse61;
+	u32 fuse62;
+	u32 fuse63;
+	u32 fuse64;
+	u32 fuse65;
+	u32 fuse66;
+	u32 fuse67;
+	u32 fuse70;
+	u32 fuse71;
+	u32 fuse72;
+	u32 fuse73;
+	u32 fuse74;
+	u32 fuse75;
+	u32 fuse76;
+	u32 fuse77;
+	u32 fuse80;
+	u32 fuse81;
+	u32 fuse82;
+	u32 fuse83;
+	u32 fuse84;
+	u32 fuse85;
+	u32 fuse86;
+	u32 fuse87;
+	u32 fuse90;
+	u32 fuse91;
+	u32 fuse92;
+	u32 fuse93;
+	u32 fuse94;
+	u32 fuse95;
+	u32 fuse96;
+	u32 fuse97;
+	u32 fuse100;
+	u32 fuse101;
+	u32 fuse102;
+	u32 fuse103;
+	u32 fuse104;
+	u32 fuse105;
+	u32 fuse106;
+	u32 fuse107;
+	u32 fuse110;
+	u32 fuse111;
+	u32 fuse112;
+	u32 fuse113;
+	u32 fuse114;
+	u32 fuse115;
+	u32 fuse116;
+	u32 fuse117;
+	u32 fuse120;
+	u32 fuse121;
+	u32 fuse122;
+	u32 fuse123;
+	u32 fuse124;
+	u32 fuse125;
+	u32 fuse126;
+	u32 fuse127;
+	u32 fuse130;
+	u32 fuse131;
+	u32 fuse132;
+	u32 fuse133;
+	u32 fuse134;
+	u32 fuse135;
+	u32 fuse136;
+	u32 fuse137;
+	u32 fuse140;
+	u32 fuse141;
+	u32 fuse142;
+	u32 fuse143;
+	u32 fuse144;
+	u32 fuse145;
+	u32 fuse146;
+	u32 fuse147;
+	u32 fuse150;
+	u32 fuse151;
+	u32 fuse152;
+	u32 fuse153;
+	u32 fuse154;
+	u32 fuse155;
+	u32 fuse156;
+	u32 fuse157;
+	u32 apgencfg;
+	u32 apcorecfg0;
+	u32 apcorecfg1;
+	u32 apcorecfg2;
+	u32 apcorecfg3;
+	u32 rvbaraddr_low0;
+	u32 rvbaraddr_low1;
+	u32 rvbaraddr_low2;
+	u32 rvbaraddr_low3;
+	u8 _reserved1[0x10];
+	u32 rvbaraddr_high0;
+	u32 rvbaraddr_high1;
+	u32 rvbaraddr_high2;
+	u32 rvbaraddr_high3;
+	u32 highvecremap;
+};
+
+check_member(mvmap2315_cpu_regs, highvecremap, 0x264);
+static struct mvmap2315_cpu_regs * const mvmap2315_cpu
+					= (void *)MVMAP2315_CPU_BASE;
+
+enum boot_options {
+	NO_BOOT = 0,
+	CHARGING_SCREEN = 1,
+	FULL_BOOT = 2
+};
+
+void no_boot(void);
+void full_boot(void);
+void charging_screen(void);
+void mcu_start(void);
+void ap_start(void *entry);
+u32 get_boot_path(void);
+
+#endif /* __SOC_MARVELL_MVMAP2315_PMIC_H__ */
diff --git a/src/soc/marvell/mvmap2315/pmic.c b/src/soc/marvell/mvmap2315/pmic.c
new file mode 100644
index 0000000000..f263804795
--- /dev/null
+++ b/src/soc/marvell/mvmap2315/pmic.c
@@ -0,0 +1,125 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2016 Marvell, Inc.
+ *
+ * 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; version 2 of the License.
+ *
+ * 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.
+ */
+
+#include <stddef.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+#include <arch/io.h>
+#include <assert.h>
+#include <console/console.h>
+#include <soc/apmu.h>
+#include <soc/clock.h>
+#include <soc/pmic.h>
+
+static void syspwr_init(void)
+{
+	int result = 0;
+
+	/* Start the PLLs */
+	result |= apmu_set_pll(MAIN_PLL, D0, 2000);
+	result |= apmu_set_pll(CPU_PLL, D0, 2400);
+	result |= apmu_set_pll(MC_PLL, D0, 3200);
+	result |= apmu_set_pll(MCFLC_PLL, D0, 2133);
+	result |= apmu_set_pll(A2_PLL, D0, 1800);
+	result |= apmu_set_pll(GPU_PLL0, D0, 2000);
+	result |= apmu_set_pll(GPU_PLL1, D0, 2400);
+	result |= apmu_set_pll(MIPI_PLL, D0, 2000);
+	result |= apmu_set_pll(DISPLAY_PLL, D0, 1800);
+
+	/* Start the peripheral devices */
+	result |= apmu_set_dev(SDMMC, D0);
+	result |= apmu_set_dev(AES256, D0);
+	result |= apmu_set_dev(AP_AXI_HS, D0);
+	result |= apmu_set_dev(AP_UART0, D0);
+	result |= apmu_set_dev(AP_UART1, D0);
+	result |= apmu_set_dev(AP_M2M, D0);
+	result |= apmu_set_dev(AP_APB, D0);
+	result |= apmu_set_dev(AP_GIC, D0);
+	result |= apmu_set_dev(A2, D0);
+	result |= apmu_set_dev(MC, D0);
+	result |= apmu_set_dev(DDRPHY_0,  D0);
+	result |= apmu_set_dev(DDRPHY_1,  D0);
+	result |= apmu_set_dev(DDRPHY_2,  D0);
+	result |= apmu_set_dev(DDRPHY_3,  D0);
+
+	if (result)
+		assert("ERRORS DURING system POWER-on");
+}
+
+void ap_start(void *entry)
+{
+	int result = 0;
+
+	setbits_le32(&mvmap2315_cpu->apgencfg,
+		     MVMAP2315_APGENCFG_BROADCASTINNER);
+	setbits_le32(&mvmap2315_cpu->apgencfg,
+		     MVMAP2315_APGENCFG_BROADCASTOUTER);
+	clrbits_le32(&mvmap2315_cpu->apgencfg,
+		     MVMAP2315_APGENCFG_BROADCASTCACHEMAINT);
+	setbits_le32(&mvmap2315_cpu->apgencfg,
+		     MVMAP2315_APGENCFG_BROADCASTCACHEMAINTPOU);
+	setbits_le32(&mvmap2315_cpu->apgencfg,
+		     MVMAP2315_APGENCFG_SYSBARDISABLE);
+
+	result |= apmu_set_dev(APCPU_L2, D0);
+
+	setbits_le32(&mvmap2315_cpu->apcorecfg0,
+		     MVMAP2315_APCORECFG0_AA64NAA32);
+
+	write32(&mvmap2315_cpu->rvbaraddr_low0, ((uintptr_t)entry) >> 2);
+
+	write32(&mvmap2315_cpu->rvbaraddr_high0, 0);
+
+	result |= apmu_set_dev(APCPU_0, D0);
+
+	if (result)
+		assert("ERRORS DURING AP POWER-on");
+}
+
+void no_boot(void)
+{
+	/*TODO: impelement no_boot */
+}
+
+void charging_screen(void)
+{
+	/*TODO: impelement charging_screen */
+}
+
+void full_boot(void)
+{
+	printk(BIOS_DEBUG, "Powering up the system.\n");
+	syspwr_init();
+}
+
+void mcu_start(void)
+{
+	int result = 0;
+
+	result |= apmu_set_pll(APLL0, D0, APLL_589P824);
+	result |= apmu_set_clk(M4CLK, NOCHANGE, 4, SRCSEL_APLL0);
+
+	if (result)
+		assert("ERRORS DURING MCU POWER-on");
+
+	clrbits_le32(&mvmap2315_mpmu_clk->resetmcu, MVMAP2315_MCU_RST_EN);
+	setbits_le32(&mvmap2315_mpmu_clk->resetmcu, MVMAP2315_MCU_RST_EN);
+}
+
+u32 get_boot_path(void)
+{
+	return FULL_BOOT;
+}