diff options
| -rw-r--r-- | board/sunxi/board.c | 22 | ||||
| -rw-r--r-- | boards.cfg | 6 | ||||
| -rw-r--r-- | drivers/power/Makefile | 1 | ||||
| -rw-r--r-- | drivers/power/axp209.c | 167 | ||||
| -rw-r--r-- | include/axp209.h | 14 | ||||
| -rw-r--r-- | include/configs/sun4i.h | 1 | ||||
| -rw-r--r-- | include/configs/sun5i.h | 1 | ||||
| -rw-r--r-- | include/configs/sun7i.h | 1 | ||||
| -rw-r--r-- | include/configs/sunxi-common.h | 5 |
9 files changed, 215 insertions, 3 deletions
diff --git a/board/sunxi/board.c b/board/sunxi/board.c index 543b8098e9..8375711d1e 100644 --- a/board/sunxi/board.c +++ b/board/sunxi/board.c @@ -12,6 +12,9 @@ */ #include <common.h> +#ifdef CONFIG_AXP209_POWER +#include <axp209.h> +#endif #include <asm/arch/clock.h> #include <asm/arch/dram.h> #include <asm/arch/gpio.h> @@ -116,12 +119,31 @@ void i2c_init_board(void) #ifdef CONFIG_SPL_BUILD void sunxi_board_init(void) { + int power_failed = 0; unsigned long ramsize; +#ifdef CONFIG_AXP209_POWER + power_failed |= axp209_init(); + power_failed |= axp209_set_dcdc2(1400); + power_failed |= axp209_set_dcdc3(1250); + power_failed |= axp209_set_ldo2(3000); + power_failed |= axp209_set_ldo3(2800); + power_failed |= axp209_set_ldo4(2800); +#endif + printf("DRAM:"); ramsize = sunxi_dram_init(); printf(" %lu MiB\n", ramsize >> 20); if (!ramsize) hang(); + + /* + * Only clock up the CPU to full speed if we are reasonably + * assured it's being powered with suitable core voltage + */ + if (!power_failed) + clock_set_pll1(CONFIG_CLK_FULL_SPEED); + else + printf("Failed to set core voltage! Can't set CPU frequency\n"); } #endif diff --git a/boards.cfg b/boards.cfg index 759d331d19..8e6afe7876 100644 --- a/boards.cfg +++ b/boards.cfg @@ -378,9 +378,9 @@ Active arm armv7 s5pc1xx samsung goni Active arm armv7 s5pc1xx samsung smdkc100 smdkc100 - Minkyu Kang <mk7.kang@samsung.com> Active arm armv7 socfpga altera socfpga socfpga_cyclone5 - - Active arm armv7 sunxi - sunxi A13-OLinuXinoM sun5i:A13_OLINUXINOM,SPL,CONS_INDEX=2 Hans de Goede <hdegoede@redhat.com> -Active arm armv7 sunxi - sunxi Cubieboard sun4i:CUBIEBOARD,SPL,SUNXI_EMAC Hans de Goede <hdegoede@redhat.com> -Active arm armv7 sunxi - sunxi Cubietruck sun7i:CUBIETRUCK,SPL,SUNXI_GMAC,RGMII Ian Campbell <ijc@hellion.org.uk>:Hans de Goede <hdegoede@redhat.com> -Active arm armv7 sunxi - sunxi Cubietruck_FEL sun7i:CUBIETRUCK,SPL_FEL,SUNXI_GMAC,RGMII Ian Campbell <ijc@hellion.org.uk>:Hans de Goede <hdegoede@redhat.com> +Active arm armv7 sunxi - sunxi Cubieboard sun4i:CUBIEBOARD,SPL,AXP209_POWER,SUNXI_EMAC Hans de Goede <hdegoede@redhat.com> +Active arm armv7 sunxi - sunxi Cubietruck sun7i:CUBIETRUCK,SPL,AXP209_POWER,SUNXI_GMAC,RGMII Ian Campbell <ijc@hellion.org.uk>:Hans de Goede <hdegoede@redhat.com> +Active arm armv7 sunxi - sunxi Cubietruck_FEL sun7i:CUBIETRUCK,SPL_FEL,AXP209_POWER,SUNXI_GMAC,RGMII Ian Campbell <ijc@hellion.org.uk>:Hans de Goede <hdegoede@redhat.com> Active arm armv7 sunxi - sunxi r7-tv-dongle sun5i:R7DONGLE,SPL Hans de Goede <hdegoede@redhat.com> Active arm armv7 u8500 st-ericsson snowball snowball - Mathieu Poirier <mathieu.poirier@linaro.org> Active arm armv7 u8500 st-ericsson u8500 u8500_href - - diff --git a/drivers/power/Makefile b/drivers/power/Makefile index 53ff97d745..063ac8f9d6 100644 --- a/drivers/power/Makefile +++ b/drivers/power/Makefile @@ -5,6 +5,7 @@ # SPDX-License-Identifier: GPL-2.0+ # +obj-$(CONFIG_AXP209_POWER) += axp209.o obj-$(CONFIG_EXYNOS_TMU) += exynos-tmu.o obj-$(CONFIG_FTPMU010_POWER) += ftpmu010.o obj-$(CONFIG_TPS6586X_POWER) += tps6586x.o diff --git a/drivers/power/axp209.c b/drivers/power/axp209.c new file mode 100644 index 0000000000..9798e5bf7c --- /dev/null +++ b/drivers/power/axp209.c @@ -0,0 +1,167 @@ +/* + * (C) Copyright 2012 + * Henrik Nordstrom <henrik@henriknordstrom.net> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <i2c.h> +#include <axp209.h> + +enum axp209_reg { + AXP209_POWER_STATUS = 0x00, + AXP209_CHIP_VERSION = 0x03, + AXP209_DCDC2_VOLTAGE = 0x23, + AXP209_DCDC3_VOLTAGE = 0x27, + AXP209_LDO24_VOLTAGE = 0x28, + AXP209_LDO3_VOLTAGE = 0x29, + AXP209_IRQ_STATUS5 = 0x4c, + AXP209_SHUTDOWN = 0x32, +}; + +#define AXP209_POWER_STATUS_ON_BY_DC (1 << 0) + +#define AXP209_IRQ5_PEK_UP (1 << 6) +#define AXP209_IRQ5_PEK_DOWN (1 << 5) + +#define AXP209_POWEROFF (1 << 7) + +static int axp209_write(enum axp209_reg reg, u8 val) +{ + return i2c_write(0x34, reg, 1, &val, 1); +} + +static int axp209_read(enum axp209_reg reg, u8 *val) +{ + return i2c_read(0x34, reg, 1, val, 1); +} + +static u8 axp209_mvolt_to_cfg(int mvolt, int min, int max, int div) +{ + if (mvolt < min) + mvolt = min; + else if (mvolt > max) + mvolt = max; + + return (mvolt - min) / div; +} + +int axp209_set_dcdc2(int mvolt) +{ + int rc; + u8 cfg, current; + + cfg = axp209_mvolt_to_cfg(mvolt, 700, 2275, 25); + + /* Do we really need to be this gentle? It has built-in voltage slope */ + while ((rc = axp209_read(AXP209_DCDC2_VOLTAGE, ¤t)) == 0 && + current != cfg) { + if (current < cfg) + current++; + else + current--; + + rc = axp209_write(AXP209_DCDC2_VOLTAGE, current); + if (rc) + break; + } + + return rc; +} + +int axp209_set_dcdc3(int mvolt) +{ + u8 cfg = axp209_mvolt_to_cfg(mvolt, 700, 3500, 25); + + return axp209_write(AXP209_DCDC3_VOLTAGE, cfg); +} + +int axp209_set_ldo2(int mvolt) +{ + int rc; + u8 cfg, reg; + + cfg = axp209_mvolt_to_cfg(mvolt, 1800, 3300, 100); + + rc = axp209_read(AXP209_LDO24_VOLTAGE, ®); + if (rc) + return rc; + + /* LDO2 configuration is in upper 4 bits */ + reg = (reg & 0x0f) | (cfg << 4); + return axp209_write(AXP209_LDO24_VOLTAGE, reg); +} + +int axp209_set_ldo3(int mvolt) +{ + u8 cfg; + + if (mvolt == -1) + cfg = 0x80; /* determined by LDO3IN pin */ + else + cfg = axp209_mvolt_to_cfg(mvolt, 700, 2275, 25); + + return axp209_write(AXP209_LDO3_VOLTAGE, cfg); +} + +int axp209_set_ldo4(int mvolt) +{ + int rc; + static const int vindex[] = { + 1250, 1300, 1400, 1500, 1600, 1700, 1800, 1900, 2000, 2500, + 2700, 2800, 3000, 3100, 3200, 3300 + }; + u8 cfg, reg; + + /* Translate mvolt to register cfg value, requested <= selected */ + for (cfg = 15; vindex[cfg] > mvolt && cfg > 0; cfg--); + + rc = axp209_read(AXP209_LDO24_VOLTAGE, ®); + if (rc) + return rc; + + /* LDO4 configuration is in lower 4 bits */ + reg = (reg & 0xf0) | (cfg << 0); + return axp209_write(AXP209_LDO24_VOLTAGE, reg); +} + +int axp209_init(void) +{ + u8 ver; + int rc; + + rc = axp209_read(AXP209_CHIP_VERSION, &ver); + if (rc) + return rc; + + /* Low 4 bits is chip version */ + ver &= 0x0f; + + if (ver != 0x1) + return -1; + + return 0; +} + +int axp209_poweron_by_dc(void) +{ + u8 v; + + if (axp209_read(AXP209_POWER_STATUS, &v)) + return 0; + + return (v & AXP209_POWER_STATUS_ON_BY_DC); +} + +int axp209_power_button(void) +{ + u8 v; + + if (axp209_read(AXP209_IRQ_STATUS5, &v)) + return 0; + + axp209_write(AXP209_IRQ_STATUS5, AXP209_IRQ5_PEK_DOWN); + + return v & AXP209_IRQ5_PEK_DOWN; +} diff --git a/include/axp209.h b/include/axp209.h new file mode 100644 index 0000000000..21efce64bb --- /dev/null +++ b/include/axp209.h @@ -0,0 +1,14 @@ +/* + * (C) Copyright 2012 Henrik Nordstrom <henrik@henriknordstrom.net> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +extern int axp209_set_dcdc2(int mvolt); +extern int axp209_set_dcdc3(int mvolt); +extern int axp209_set_ldo2(int mvolt); +extern int axp209_set_ldo3(int mvolt); +extern int axp209_set_ldo4(int mvolt); +extern int axp209_init(void); +extern int axp209_poweron_by_dc(void); +extern int axp209_power_button(void); diff --git a/include/configs/sun4i.h b/include/configs/sun4i.h index 6560b65b38..037f9952f8 100644 --- a/include/configs/sun4i.h +++ b/include/configs/sun4i.h @@ -12,6 +12,7 @@ * A10 specific configuration */ #define CONFIG_SUN4I /* sun4i SoC generation */ +#define CONFIG_CLK_FULL_SPEED 1008000000 #define CONFIG_SYS_PROMPT "sun4i# " diff --git a/include/configs/sun5i.h b/include/configs/sun5i.h index 43f0d67345..c6138b7cd4 100644 --- a/include/configs/sun5i.h +++ b/include/configs/sun5i.h @@ -12,6 +12,7 @@ * High Level Configuration Options */ #define CONFIG_SUN5I /* sun5i SoC generation */ +#define CONFIG_CLK_FULL_SPEED 1008000000 #define CONFIG_SYS_PROMPT "sun5i# " diff --git a/include/configs/sun7i.h b/include/configs/sun7i.h index 9b693f7039..d9be1046b0 100644 --- a/include/configs/sun7i.h +++ b/include/configs/sun7i.h @@ -13,6 +13,7 @@ * A20 specific configuration */ #define CONFIG_SUN7I /* sun7i SoC generation */ +#define CONFIG_CLK_FULL_SPEED 912000000 #define CONFIG_SYS_PROMPT "sun7i# " diff --git a/include/configs/sunxi-common.h b/include/configs/sunxi-common.h index 42b0d2e51b..40833885f7 100644 --- a/include/configs/sunxi-common.h +++ b/include/configs/sunxi-common.h @@ -169,6 +169,11 @@ #define CONFIG_SYS_I2C_SLAVE 0x7f #define CONFIG_CMD_I2C +/* PMU */ +#if defined CONFIG_AXP152_POWER || defined CONFIG_AXP209_POWER || defined CONFIG_AXP221_POWER +#define CONFIG_SPL_POWER_SUPPORT +#endif + #ifndef CONFIG_CONS_INDEX #define CONFIG_CONS_INDEX 1 /* UART0 */ #endif |