[coreboot-gerrit] Patch set updated for coreboot: d3e262c dmp/vortex86ex: Initialize I2C controller base address/IRQ
Andrew Wu (arw@dmp.com.tw)
gerrit at coreboot.org
Wed Oct 30 14:02:32 CET 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 d3e262ce929244f089a83c4ad559076af04c30a5
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 | 33 ++++++++++++++++++++--------
src/southbridge/dmp/vortex86ex/southbridge.h | 1 +
3 files changed, 30 insertions(+), 9 deletions(-)
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 ddb99b8..2aab0ac 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. */
@@ -424,6 +425,16 @@ 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)
@@ -500,21 +511,21 @@ static void fix_cmos_rtc_time(void)
}
}
-static void vortex86_sb_set_io_resv(device_t dev, u32 io_resv_size)
+static void vortex86_sb_set_io_resv(device_t dev, unsigned index, u32 base, u32 size)
{
struct resource *res;
- res = new_resource(dev, 1);
- res->base = 0x0UL;
- res->size = io_resv_size;
+ res = new_resource(dev, index);
+ res->base = base;
+ res->size = size;
res->limit = 0xffffUL;
res->flags = IORESOURCE_IO | IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
}
-static void vortex86_sb_set_spi_flash_size(device_t dev, u32 flash_size)
+static void vortex86_sb_set_spi_flash_size(device_t dev, unsigned index, u32 flash_size)
{
/* SPI flash is in topmost of 4G memory space */
struct resource *res;
- res = new_resource(dev, 2);
+ res = new_resource(dev, index);
res->base = 0x100000000LL - flash_size;
res->size = flash_size;
res->limit = 0xffffffffUL;
@@ -537,11 +548,14 @@ static void vortex86_sb_read_resources(device_t dev)
flash_size = 64 * 1024 * 1024;
}
- /* Reserve space for I/O */
- vortex86_sb_set_io_resv(dev, 0x1000UL);
+ /* Reserve space for legacy I/O */
+ vortex86_sb_set_io_resv(dev, 1, 0, 0x1000UL);
/* Reserve space for flash */
- vortex86_sb_set_spi_flash_size(dev, flash_size);
+ 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)
@@ -572,6 +586,7 @@ 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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