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authorFlorian Fainelli <f.fainelli@gmail.com>2019-12-10 14:57:58 -0800
committerFlorian Fainelli <f.fainelli@gmail.com>2020-01-05 13:44:04 -0800
commit3098f5eb906b9e66b0a0b79b75d612261a6a7108 (patch)
treebbd446c8b999580d64fa0be168cd999c37610b2e /drivers/soc/bcm
parente42617b825f8073569da76dc4510bfa019b1c35a (diff)
soc: bcm: brcmstb: biuctrl: Tune 7260 BIU interface
7260A0 and B0 are both supported, and 7260A0 has a small difference in that it does not support the write-back control register, which is why we have a different array of registers. Update the comment above b53_cpubiuctrl_no_wb_regs to denote that difference. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Diffstat (limited to 'drivers/soc/bcm')
-rw-r--r--drivers/soc/bcm/brcmstb/biuctrl.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/soc/bcm/brcmstb/biuctrl.c b/drivers/soc/bcm/brcmstb/biuctrl.c
index d326915e0f40..6be975392590 100644
--- a/drivers/soc/bcm/brcmstb/biuctrl.c
+++ b/drivers/soc/bcm/brcmstb/biuctrl.c
@@ -63,7 +63,7 @@ static const int b15_cpubiuctrl_regs[] = {
[CPU_WRITEBACK_CTRL_REG] = -1,
};
-/* Odd cases, e.g: 7260 */
+/* Odd cases, e.g: 7260A0 */
static const int b53_cpubiuctrl_no_wb_regs[] = {
[CPU_CREDIT_REG] = 0x0b0,
[CPU_MCP_FLOW_REG] = 0x0b4,
@@ -102,6 +102,7 @@ static int __init mcp_write_pairing_set(void)
}
static const u32 b53_mach_compat[] = {
+ 0x7260,
0x7268,
0x7271,
0x7278,
@@ -157,6 +158,7 @@ static void __init mcp_b53_set(void)
static int __init setup_hifcpubiuctrl_regs(struct device_node *np)
{
struct device_node *cpu_dn;
+ u32 family_id;
int ret = 0;
cpubiuctrl_base = of_iomap(np, 0);
@@ -185,7 +187,8 @@ static int __init setup_hifcpubiuctrl_regs(struct device_node *np)
}
of_node_put(cpu_dn);
- if (BRCM_ID(brcmstb_get_family_id()) == 0x7260)
+ family_id = brcmstb_get_family_id();
+ if (BRCM_ID(family_id) == 0x7260 && BRCM_REV(family_id) == 0)
cpubiuctrl_regs = b53_cpubiuctrl_no_wb_regs;
out:
of_node_put(np);