PCI: keystone: Cleanup ks_pcie_link_up()

ks_pcie_link_up() uses registers from the designware core to get the
status of the link. Move the register defines to pcie-designware.h
and cleanup ks_pcie_link_up().

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>

1 files changed, 3 insertions, 8 deletions

diff --git a/drivers/pci/controller/dwc/pci-keystone.c b/drivers/pci/controller/dwc/pci-keystone.c
index 2decbaec81a3..e181e6277323 100644
--- a/drivers/pci/controller/dwc/pci-keystone.c
+++ b/drivers/pci/controller/dwc/pci-keystone.c
@@ -38,8 +38,6 @@
 
 /* Application register defines */
 #define LTSSM_EN_VAL                    BIT(0)
-#define LTSSM_STATE_MASK                0x1f
-#define LTSSM_STATE_L0                  0x11
 #define DBI_CS2                         BIT(5)
 #define OB_XLAT_EN_VAL                  BIT(1)
 
@@ -87,11 +85,7 @@
 #define ERR_IRQ_ENABLE_SET              0x1c8
 #define ERR_IRQ_ENABLE_CLR              0x1cc
 
-/* Config space registers */
-#define DEBUG0                          0x728
-
 #define MAX_MSI_HOST_IRQS               8
-
 /* PCIE controller device IDs */
 #define PCIE_RC_K2HK            0xb008
 #define PCIE_RC_K2E             0xb009
@@ -442,8 +436,9 @@ static int ks_pcie_link_up(struct dw_pcie *pci)
 {
         u32 val;
 
-        val = dw_pcie_readl_dbi(pci, DEBUG0);
-        return (val & LTSSM_STATE_MASK) == LTSSM_STATE_L0;
+        val = dw_pcie_readl_dbi(pci, PCIE_PORT_DEBUG0);
+        val &= PORT_LOGIC_LTSSM_STATE_MASK;
+        return (val == PORT_LOGIC_LTSSM_STATE_L0);
 }
 
 static void ks_pcie_initiate_link_train(struct keystone_pcie *ks_pcie)