[coreboot-gerrit] Patch set updated for coreboot: b6591b3 dmp/vortex86ex: Initialize I2C controller base address/IRQ

Andrew Wu (arw@dmp.com.tw) gerrit at coreboot.org
Tue Oct 22 10:52:45 CEST 2013


Andrew Wu (arw at dmp.com.tw) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/3976

-gerrit

commit b6591b3726e56e9d8e51115945dfeba3b7ef35db
Author: Andrew Wu <arw at dmp.com.tw>
Date:   Wed Oct 16 13:08:30 2013 +0800

    dmp/vortex86ex: Initialize I2C controller base address/IRQ
    
    Change-Id: I22f5c877ed441d59f29801d925ee40b24fb796ce
    Signed-off-by: Andrew Wu <arw at dmp.com.tw>
---
 src/mainboard/dmp/vortex86ex/Kconfig         |  5 +++++
 src/southbridge/dmp/vortex86ex/southbridge.c | 12 ++++++++++++
 src/southbridge/dmp/vortex86ex/southbridge.h |  1 +
 3 files changed, 18 insertions(+)

diff --git a/src/mainboard/dmp/vortex86ex/Kconfig b/src/mainboard/dmp/vortex86ex/Kconfig
index 723a251..b1db0dc 100644
--- a/src/mainboard/dmp/vortex86ex/Kconfig
+++ b/src/mainboard/dmp/vortex86ex/Kconfig
@@ -50,6 +50,11 @@ config ID_SECTION_OFFSET
 	hex
 	default 0x4800
 
+# SPI I/O base address control.
+config I2C_BASE
+	hex
+	default 0xfb00
+
 # ROM Strap PLL config setting :
 
 choice
diff --git a/src/southbridge/dmp/vortex86ex/southbridge.c b/src/southbridge/dmp/vortex86ex/southbridge.c
index d8914c0..d431c1c 100644
--- a/src/southbridge/dmp/vortex86ex/southbridge.c
+++ b/src/southbridge/dmp/vortex86ex/southbridge.c
@@ -70,6 +70,7 @@ 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. */
@@ -418,6 +419,16 @@ 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)
@@ -566,6 +577,7 @@ 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 0cc28fa..316d30a 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



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