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authorAndrew Wu <arw@dmp.com.tw>2013-12-23 19:54:26 +0800
committerPatrick Georgi <patrick@georgi-clan.de>2014-01-23 20:40:53 +0100
commita4ae3107cae800c1fa13a97c78827ef2608684bd (patch)
treeedd7f37a137c56d0be1e80cdb97a88af9a0eb4ec /src/southbridge
parent77c70a06e1cdb6781857a2f488f13432bbcf18ec (diff)
dmp/vortex86ex: Initialize I2C controller base address/IRQ
Change-Id: Iefd6852f2300f703ebed8b52aee627107a024f85 Signed-off-by: Andrew Wu <arw@dmp.com.tw> Reviewed-on: http://review.coreboot.org/4570 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Diffstat (limited to 'src/southbridge')
-rw-r--r--src/southbridge/dmp/vortex86ex/southbridge.c15
-rw-r--r--src/southbridge/dmp/vortex86ex/southbridge.h1
2 files changed, 16 insertions, 0 deletions
diff --git a/src/southbridge/dmp/vortex86ex/southbridge.c b/src/southbridge/dmp/vortex86ex/southbridge.c
index 5be857582b..bcdd8b22b5 100644
--- a/src/southbridge/dmp/vortex86ex/southbridge.c
+++ b/src/southbridge/dmp/vortex86ex/southbridge.c
@@ -72,6 +72,7 @@ static const unsigned char irq_to_int_routing[16] = {
#define PIDE_IRQ 5
#define SPI1_IRQ 10
+#define I2C0_IRQ 10
#define MOTOR_IRQ 11
/* RT0-3 IRQs. */
@@ -429,6 +430,16 @@ static void ex_sb_uart_init(struct device *dev)
//pci_write_config16(SB, SB_REG_UART_CFG_IO_BASE, 0x0);
}
+static void i2c_init(struct device *dev)
+{
+ u8 mapped_irq = irq_to_int_routing[I2C0_IRQ];
+ u32 cfg = 0;
+ cfg |= 1 << 31; // UE = enabled.
+ cfg |= (mapped_irq << 16); // IIRT0.
+ cfg |= CONFIG_I2C_BASE; // UIOA.
+ pci_write_config32(dev, SB_REG_II2CCR, cfg);
+}
+
static int get_rtc_update_in_progress(void)
{
if (cmos_read(RTC_REG_A) & RTC_UIP)
@@ -547,6 +558,9 @@ static void vortex86_sb_read_resources(device_t dev)
/* Reserve space for flash */
vortex86_sb_set_spi_flash_size(dev, 2, flash_size);
+
+ /* Reserve space for I2C */
+ vortex86_sb_set_io_resv(dev, 3, CONFIG_I2C_BASE, 8);
}
static void southbridge_init_func1(struct device *dev)
@@ -577,6 +591,7 @@ static void southbridge_init(struct device *dev)
if (dev->device == 0x6011) {
ex_sb_gpio_init(dev);
ex_sb_uart_init(dev);
+ i2c_init(dev);
}
pci_routing_fixup(dev);
diff --git a/src/southbridge/dmp/vortex86ex/southbridge.h b/src/southbridge/dmp/vortex86ex/southbridge.h
index 0cc28facb6..316d30a2fc 100644
--- a/src/southbridge/dmp/vortex86ex/southbridge.h
+++ b/src/southbridge/dmp/vortex86ex/southbridge.h
@@ -36,6 +36,7 @@
#define SB_REG_IPFCR 0xc0
#define SB_REG_FRWPR 0xc4
#define SB_REG_STRAP 0xce
+#define SB_REG_II2CCR 0xd4
#define SB1 PCI_DEV(0, 7, 1)
#define SB1_REG_EXT_PIRQ_ROUTE2 0xb4