diff options
Diffstat (limited to 'src/soc/qualcomm/ipq806x/i2c.c')
| -rw-r--r-- | src/soc/qualcomm/ipq806x/i2c.c | 47 |
1 files changed, 40 insertions, 7 deletions
diff --git a/src/soc/qualcomm/ipq806x/i2c.c b/src/soc/qualcomm/ipq806x/i2c.c index a4d1c00856..9aaa173513 100644 --- a/src/soc/qualcomm/ipq806x/i2c.c +++ b/src/soc/qualcomm/ipq806x/i2c.c @@ -1,7 +1,7 @@ /* * This file is part of the coreboot project. * - * Copyright (C) 2014 The Linux Foundation. All rights reserved. + * Copyright (C) 2014 - 2015 The Linux Foundation. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions @@ -37,11 +37,28 @@ #include <soc/gsbi.h> #include <soc/qup.h> -static const qup_config_t gsbi4_qup_config = { +static qup_config_t gsbi1_qup_config = { QUP_MINICORE_I2C_MASTER, 100000, 24000000, - QUP_MODE_FIFO + QUP_MODE_FIFO, + 0 +}; + +static qup_config_t gsbi4_qup_config = { + QUP_MINICORE_I2C_MASTER, + 100000, + 24000000, + QUP_MODE_FIFO, + 0 +}; + +static qup_config_t gsbi7_qup_config = { + QUP_MINICORE_I2C_MASTER, + 100000, + 24000000, + QUP_MODE_FIFO, + 0 }; static int i2c_read(uint32_t gsbi_id, uint8_t slave, @@ -84,10 +101,26 @@ static int i2c_write(uint32_t gsbi_id, uint8_t slave, static int i2c_init(unsigned bus) { - static uint8_t initialized = 0; unsigned gsbi_id = bus; + qup_config_t *qup_config; + + switch (gsbi_id) { + case GSBI_ID_1: + qup_config = &gsbi1_qup_config; + break; + case GSBI_ID_4: + qup_config = &gsbi4_qup_config; + break; + case GSBI_ID_7: + qup_config = &gsbi7_qup_config; + break; + default: + printk(BIOS_ERR, "QUP configuration not defind for GSBI%d.\n", + gsbi_id); + return 1; + } - if (initialized) + if (qup_config->initialized) return 0; if (gsbi_init(gsbi_id, GSBI_PROTO_I2C_ONLY)) { @@ -95,7 +128,7 @@ static int i2c_init(unsigned bus) return 1; } - if (qup_init(gsbi_id, &gsbi4_qup_config)) { + if (qup_init(gsbi_id, qup_config)) { printk(BIOS_ERR, "failed to initialize qup\n"); return 1; } @@ -105,7 +138,7 @@ static int i2c_init(unsigned bus) return 1; } - initialized = 1; + qup_config->initialized = 1; return 0; } |