diff options
Diffstat (limited to 'board/gateworks/venice/spl.c')
| -rw-r--r-- | board/gateworks/venice/spl.c | 53 |
1 files changed, 29 insertions, 24 deletions
diff --git a/board/gateworks/venice/spl.c b/board/gateworks/venice/spl.c index b56e1b607d..ba7118a388 100644 --- a/board/gateworks/venice/spl.c +++ b/board/gateworks/venice/spl.c @@ -7,13 +7,9 @@ #include <cpu_func.h> #include <hang.h> #include <i2c.h> -#include <image.h> #include <init.h> -#include <log.h> #include <spl.h> -#include <asm/io.h> #include <asm/mach-imx/gpio.h> -#include <asm/mach-imx/iomux-v3.h> #include <asm/arch/clock.h> #include <asm/arch/imx8mm_pins.h> #include <asm/arch/imx8mn_pins.h> @@ -21,22 +17,17 @@ #include <asm/mach-imx/boot_mode.h> #include <asm/arch/ddr.h> #include <asm-generic/gpio.h> - #include <dm/uclass.h> #include <dm/device.h> -#include <dm/uclass-internal.h> -#include <dm/device-internal.h> - +#include <linux/delay.h> #include <power/bd71837.h> #include <power/mp5416.h> -#include "gsc.h" +#include "eeprom.h" #include "lpddr4_timing.h" #define PCIE_RSTN IMX_GPIO_NR(4, 6) -DECLARE_GLOBAL_DATA_PTR; - static void spl_dram_init(int size) { struct dram_timing_info *dram_timing; @@ -65,8 +56,8 @@ static void spl_dram_init(int size) dram_timing = &dram_timing_1gb_single_die; break; case 2048: - if (!strcmp(gsc_get_model(), "GW7902-SP466-A") || - !strcmp(gsc_get_model(), "GW7902-SP466-B")) { + if (!strcmp(eeprom_get_model(), "GW7902-SP466-A") || + !strcmp(eeprom_get_model(), "GW7902-SP466-B")) { dram_timing = &dram_timing_2gb_dual_die; } else { dram_timing = &dram_timing_2gb_single_die; @@ -149,7 +140,7 @@ static int dm_i2c_clrsetbits(struct udevice *dev, uint reg, uint clr, uint set) static int power_init_board(void) { - const char *model = gsc_get_model(); + const char *model = eeprom_get_model(); struct udevice *bus; struct udevice *dev; int ret; @@ -243,22 +234,36 @@ void board_init_f(ulong dummy) hang(); } - ret = uclass_get_device_by_name(UCLASS_CLK, - "clock-controller@30380000", - &dev); - if (ret < 0) { - printf("Failed to find clock node. Check device tree\n"); - hang(); - } - enable_tzc380(); /* need to hold PCIe switch in reset otherwise it can lock i2c bus EEPROM is on */ gpio_request(PCIE_RSTN, "perst#"); gpio_direction_output(PCIE_RSTN, 0); - /* GSC */ - dram_sz = gsc_init(0); + /* + * probe GSC device + * + * On a board with a missing/depleted backup battery for GSC, the + * board may be ready to probe the GSC before its firmware is + * running. We will wait here indefinately for the GSC EEPROM. + */ +#ifdef CONFIG_IMX8MN + /* + * IMX8MN boots quicker than IMX8MM and exposes issue + * where because GSC I2C state machine isn't running and its + * SCL/SDA are driven low the I2C driver spams 'Arbitration lost' + * I2C errors. + * + * TODO: Put a loop here that somehow waits for I2C CLK/DAT to be high + */ + mdelay(50); +#endif + while (1) { + if (!uclass_get_device_by_driver(UCLASS_MISC, DM_DRIVER_GET(gsc), &dev)) + break; + mdelay(1); + } + dram_sz = eeprom_init(0); /* PMIC */ power_init_board(); |