diff options
| -rw-r--r-- | drivers/mfd/db5500-prcmu.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/mfd/db5500-prcmu.c b/drivers/mfd/db5500-prcmu.c index 3f46e32198f..7de44e471f9 100644 --- a/drivers/mfd/db5500-prcmu.c +++ b/drivers/mfd/db5500-prcmu.c @@ -30,6 +30,7 @@ #include <mach/db5500-regs.h> #include "db5500-prcmu-regs.h" +#define PRCMU_FW_VERSION_OFFSET 0xA4 #define PRCM_SW_RST_REASON (tcdm_base + 0xFF8) /* 2 bytes */ #define _PRCM_MB_HEADER (tcdm_base + 0xFE8) @@ -424,6 +425,13 @@ struct clk_mgt { u32 pllsw; }; +/* PRCMU Firmware Details */ +static struct { + u16 board; + u8 fw_version; + u8 api_version; +} prcmu_version; + static DEFINE_SPINLOCK(clk_mgt_lock); #define CLK_MGT_ENTRY(_name)[PRCMU_##_name] = { \ @@ -1507,6 +1515,24 @@ static struct irq_chip prcmu_irq_chip = { void __init db5500_prcmu_early_init(void) { unsigned int i; + void *tcpm_base = ioremap_nocache(U5500_PRCMU_TCPM_BASE, SZ_4K); + + if (tcpm_base != NULL) { + int version_high, version_low; + + version_high = readl(tcpm_base + PRCMU_FW_VERSION_OFFSET); + version_low = readl(tcpm_base + PRCMU_FW_VERSION_OFFSET + 4); + prcmu_version.board = (version_high >> 24) & 0xFF; + prcmu_version.fw_version = version_high & 0xFF; + prcmu_version.api_version = version_low & 0xFF; + + pr_info("PRCMU Firmware Version: 0x%x\n", + prcmu_version.fw_version); + pr_info("PRCMU API Version: 0x%x\n", + prcmu_version.api_version); + + iounmap(tcpm_base); + } tcdm_base = __io_address(U5500_PRCMU_TCDM_BASE); spin_lock_init(&mb0_transfer.lock); |