aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorAnton Vorontsov <avorontsov@ru.mvista.com>2009-02-19 18:20:52 +0300
committerKim Phillips <kim.phillips@freescale.com>2009-02-23 15:52:35 -0600
commit7e91558032a0c1932dd7f4f562f9c7cc55efc496 (patch)
treeba1a0a72c0c628bd7759789cd887fd8dbbe840d8
parent50a4d08e8f31debbd4ea12caf1265f3643c38d5b (diff)
downloadu-boot-linaro-stable-7e91558032a0c1932dd7f4f562f9c7cc55efc496.tar.gz
mpc83xx: MPC837XERDB: Add PCIe support
On MPC8377E-RDB and MPC8378E-RDB boards we have PCIe and mini-PCIe slots. Let's support them. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
-rw-r--r--board/freescale/mpc837xerdb/pci.c57
-rw-r--r--include/configs/MPC837XERDB.h21
2 files changed, 78 insertions, 0 deletions
diff --git a/board/freescale/mpc837xerdb/pci.c b/board/freescale/mpc837xerdb/pci.c
index 8bb31fc74..83e89cf2e 100644
--- a/board/freescale/mpc837xerdb/pci.c
+++ b/board/freescale/mpc837xerdb/pci.c
@@ -13,6 +13,7 @@
#include <common.h>
#include <mpc83xx.h>
#include <pci.h>
+#include <asm/io.h>
#if defined(CONFIG_PCI)
static struct pci_region pci_regions[] = {
@@ -36,12 +37,46 @@ static struct pci_region pci_regions[] = {
}
};
+static struct pci_region pcie_regions_0[] = {
+ {
+ .bus_start = CONFIG_SYS_PCIE1_MEM_BASE,
+ .phys_start = CONFIG_SYS_PCIE1_MEM_PHYS,
+ .size = CONFIG_SYS_PCIE1_MEM_SIZE,
+ .flags = PCI_REGION_MEM,
+ },
+ {
+ .bus_start = CONFIG_SYS_PCIE1_IO_BASE,
+ .phys_start = CONFIG_SYS_PCIE1_IO_PHYS,
+ .size = CONFIG_SYS_PCIE1_IO_SIZE,
+ .flags = PCI_REGION_IO,
+ },
+};
+
+static struct pci_region pcie_regions_1[] = {
+ {
+ .bus_start = CONFIG_SYS_PCIE2_MEM_BASE,
+ .phys_start = CONFIG_SYS_PCIE2_MEM_PHYS,
+ .size = CONFIG_SYS_PCIE2_MEM_SIZE,
+ .flags = PCI_REGION_MEM,
+ },
+ {
+ .bus_start = CONFIG_SYS_PCIE2_IO_BASE,
+ .phys_start = CONFIG_SYS_PCIE2_IO_PHYS,
+ .size = CONFIG_SYS_PCIE2_IO_SIZE,
+ .flags = PCI_REGION_IO,
+ },
+};
+
void pci_init_board(void)
{
volatile immap_t *immr = (volatile immap_t *)CONFIG_SYS_IMMR;
+ volatile sysconf83xx_t *sysconf = &immr->sysconf;
volatile clk83xx_t *clk = (volatile clk83xx_t *)&immr->clk;
volatile law83xx_t *pci_law = immr->sysconf.pcilaw;
+ volatile law83xx_t *pcie_law = sysconf->pcielaw;
struct pci_region *reg[] = { pci_regions };
+ struct pci_region *pcie_reg[] = { pcie_regions_0, pcie_regions_1, };
+ u32 spridr = in_be32(&immr->sysconf.spridr);
/* Enable all 5 PCI_CLK_OUTPUTS */
clk->occr |= 0xf8000000;
@@ -55,5 +90,27 @@ void pci_init_board(void)
pci_law[1].ar = LBLAWAR_EN | LBLAWAR_1MB;
mpc83xx_pci_init(1, reg, 0);
+
+ /* There is no PEX in MPC8379 parts. */
+ if (PARTID_NO_E(spridr) == SPR_8379)
+ return;
+
+ /* Configure the clock for PCIE controller */
+ clrsetbits_be32(&clk->sccr, SCCR_PCIEXP1CM | SCCR_PCIEXP2CM,
+ SCCR_PCIEXP1CM_1 | SCCR_PCIEXP2CM_1);
+
+ /* Deassert the resets in the control register */
+ out_be32(&sysconf->pecr1, 0xE0008000);
+ out_be32(&sysconf->pecr2, 0xE0008000);
+ udelay(2000);
+
+ /* Configure PCI Express Local Access Windows */
+ out_be32(&pcie_law[0].bar, CONFIG_SYS_PCIE1_BASE & LAWBAR_BAR);
+ out_be32(&pcie_law[0].ar, LBLAWAR_EN | LBLAWAR_512MB);
+
+ out_be32(&pcie_law[1].bar, CONFIG_SYS_PCIE2_BASE & LAWBAR_BAR);
+ out_be32(&pcie_law[1].ar, LBLAWAR_EN | LBLAWAR_512MB);
+
+ mpc83xx_pcie_init(2, pcie_reg, 0);
}
#endif /* CONFIG_PCI */
diff --git a/include/configs/MPC837XERDB.h b/include/configs/MPC837XERDB.h
index 2e31dd00a..8d0c93b71 100644
--- a/include/configs/MPC837XERDB.h
+++ b/include/configs/MPC837XERDB.h
@@ -49,6 +49,7 @@
#else
#define CONFIG_83XX_CLKIN 66666667 /* in Hz */
#define CONFIG_83XX_GENERIC_PCI 1
+#define CONFIG_83XX_GENERIC_PCIE 1
#endif
#ifndef CONFIG_SYS_CLK_FREQ
@@ -375,6 +376,26 @@
#define CONFIG_SYS_PCI_SLV_MEM_BUS 0x00000000
#define CONFIG_SYS_PCI_SLV_MEM_SIZE 0x80000000
+#define CONFIG_SYS_PCIE1_BASE 0xA0000000
+#define CONFIG_SYS_PCIE1_CFG_BASE 0xA0000000
+#define CONFIG_SYS_PCIE1_CFG_SIZE 0x08000000
+#define CONFIG_SYS_PCIE1_MEM_BASE 0xA8000000
+#define CONFIG_SYS_PCIE1_MEM_PHYS 0xA8000000
+#define CONFIG_SYS_PCIE1_MEM_SIZE 0x10000000
+#define CONFIG_SYS_PCIE1_IO_BASE 0x00000000
+#define CONFIG_SYS_PCIE1_IO_PHYS 0xB8000000
+#define CONFIG_SYS_PCIE1_IO_SIZE 0x00800000
+
+#define CONFIG_SYS_PCIE2_BASE 0xC0000000
+#define CONFIG_SYS_PCIE2_CFG_BASE 0xC0000000
+#define CONFIG_SYS_PCIE2_CFG_SIZE 0x08000000
+#define CONFIG_SYS_PCIE2_MEM_BASE 0xC8000000
+#define CONFIG_SYS_PCIE2_MEM_PHYS 0xC8000000
+#define CONFIG_SYS_PCIE2_MEM_SIZE 0x10000000
+#define CONFIG_SYS_PCIE2_IO_BASE 0x00000000
+#define CONFIG_SYS_PCIE2_IO_PHYS 0xD8000000
+#define CONFIG_SYS_PCIE2_IO_SIZE 0x00800000
+
#ifdef CONFIG_PCI
#define CONFIG_NET_MULTI
#define CONFIG_PCI_PNP /* do pci plug-and-play */