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PM / devfreq: rockchip_dmc: rv1126 support set ddr frequency by DCF

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Change-Id: I6f5fdbbfd2a3986212a9c5bf9771ca408657705e
Signed-off-by: YouMin Chen <cym@rock-chips.com>
This commit is contained in:
YouMin Chen 2020-04-03 18:21:33 +08:00 committed by Tao Huang
parent 9d27410ede
commit 8d3917b810
1 changed files with 39 additions and 1 deletions
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40
drivers/devfreq/rockchip_dmc.c
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@ -105,6 +105,8 @@ struct share_params {
*/
u32 wait_flag0;
u32 complt_hwirq;
u32 update_drv_odt_cfg;
u32 update_deskew_cfg;
/* if need, add parameter after */
};
@ -2834,10 +2836,13 @@ static __maybe_unused int rv1126_dmc_init(struct platform_device *pdev,
{
struct arm_smccc_res res;
u32 size;
int ret;
int complt_irq;
struct device_node *node;
res = sip_smc_dram(0, 0,
ROCKCHIP_SIP_CONFIG_DRAM_GET_VERSION);
dev_notice(&pdev->dev, "current ATF version 0x%lx!\n", res.a1);
dev_notice(&pdev->dev, "current ATF version 0x%lx\n", res.a1);
if (res.a0 || res.a1 < 0x100) {
dev_err(&pdev->dev,
"trusted firmware need to update or is invalid!\n");
@ -2859,6 +2864,39 @@ static __maybe_unused int rv1126_dmc_init(struct platform_device *pdev,
of_get_rv1126_timings(&pdev->dev, pdev->dev.of_node,
(uint32_t *)ddr_psci_param);
/* enable start dcf in kernel after dcf ready */
node = of_parse_phandle(pdev->dev.of_node, "dcf", 0);
wait_ctrl.regmap_dcf = syscon_node_to_regmap(node);
if (IS_ERR(wait_ctrl.regmap_dcf))
return PTR_ERR(wait_ctrl.regmap_dcf);
wait_ctrl.dcf_en = 1;
init_waitqueue_head(&wait_ctrl.wait_wq);
wait_ctrl.wait_en = 1;
wait_ctrl.wait_time_out_ms = 17 * 5;
complt_irq = platform_get_irq_byname(pdev, "complete");
if (complt_irq < 0) {
dev_err(&pdev->dev, "no IRQ for complt_irq: %d\n",
complt_irq);
return complt_irq;
}
ret = devm_request_irq(&pdev->dev, complt_irq, wait_dcf_complete_irq,
0, dev_name(&pdev->dev), &wait_ctrl);
if (ret < 0) {
dev_err(&pdev->dev, "cannot request complt_irq\n");
return ret;
}
if (of_property_read_u32(pdev->dev.of_node, "update_drv_odt_cfg",
&ddr_psci_param->update_drv_odt_cfg))
ddr_psci_param->update_drv_odt_cfg = 0;
if (of_property_read_u32(pdev->dev.of_node, "update_deskew_cfg",
&ddr_psci_param->update_deskew_cfg))
ddr_psci_param->update_deskew_cfg = 0;
res = sip_smc_dram(SHARE_PAGE_TYPE_DDR, 0,
ROCKCHIP_SIP_CONFIG_DRAM_INIT);
if (res.a0) {